Torsion angle drilling jig and method for controlling torsion angle transfer of positioning pin holes at both ends of cone shell

Abstract

The present invention discloses a torsion angle drilling jig and a torsion angle conversion control method for positioning pin holes at both ends of a cone shell using the torsion angle drilling jig. The torsion angle drilling jig includes: a large end adapter plate, on which a positioning pin hole fixing drill sleeve is arranged; a small end adapter plate, on which a positioning pin hole fixing drill sleeve and a replaceable drill sleeve are arranged; a plurality of supporting positioning components, arranged between the large end adapter plate and the small end adapter plate, and the two ends of each supporting positioning component are respectively fixed to the periphery of the large end adapter plate and the small end adapter plate, and the large end adapter plate and the small end adapter plate are connected and fixed as a whole; and an intermediate positioning component, arranged between the large end adapter plate and the small end adapter plate, and the two ends of the intermediate positioning component are positioned at the center position of the large end adapter plate and the small end adapter plate.

Description

Technical Field

[0001] The invention relates to a drilling jig, in particular to a torsion angle drilling jig and a torsion angle transfer control method for controlling the torsion angle transfer of positioning pin holes at both ends of a large thin-walled conical shell workpiece. Background Art

[0002] A large thin-walled conical shell is the main structural part that supports various types of products. Its processing quality and precision play an important role in the product's action accuracy, especially as the positioning pin hole connecting the front and rear end sections. Its torsion accuracy plays a very important role in the overall action accuracy of the product. Under certain conditions, it directly affects the product's range and maneuverability. With the popularization of CNC machine tools, more and more companies have used the advantages of CNC machine tools to solve the problems of urgent progress and tight nodes during product project development. However, after the mass production of the product, the thin-walled shell is deformed, causing the center of the large and small end positioning pin holes connecting the front and rear end sections to be easily offset, and the segment positioning pin holes and connecting oblique holes are difficult to dock. The processing consistency is poor, which reduces the qualified rate of product batch production and has been plaguing the processing of various types of shells after batch production. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a torsion angle drilling jig and a torsion angle switching control method for positioning pin holes at both ends of a cone shell using the jig.

[0004] To achieve the above-mentioned purpose, the torsion angle drilling jig provided by the present invention is used to control the torsion angle transfer of the positioning pin holes at both ends of a large thin-walled conical shell workpiece, comprising:

[0005] A large end adapter plate, on which a positioning pin hole is provided to fix the drill sleeve;

[0006] A small end adapter plate, on which a positioning pin hole is provided to fix the drill sleeve and a replaceable drill sleeve;

[0007] A plurality of supporting and positioning components are disposed between the large-end adapter plate and the small-end adapter plate, and two ends of each supporting and positioning component are respectively fixed to the periphery of the large-end adapter plate and the small-end adapter plate, and the large-end adapter plate and the small-end adapter plate are connected and fixed as a whole; and

[0008] An intermediate positioning component is arranged between the large-end adapter plate and the small-end adapter plate, and two ends of the intermediate positioning component are positioned at the center position of the large-end adapter plate and the small-end adapter plate.

[0009] The above-mentioned torsion angle drilling template is characterized in that the large-end adapter plate is a hollow rectangular plate, one end of the four groups of supporting and positioning components are respectively fixedly arranged on the large-end adapter plate, and the other end is adjustably connected to the small-end adapter plate.

[0010] The above-mentioned torsion angle drilling jig is characterized in that the small-end adapter plate is a hollow circular plate formed by connecting inner and outer circular rings through radial rib plates.

[0011] The above-mentioned torsion angle drilling template is characterized in that the intermediate positioning assembly includes an intermediate supporting column and intermediate positioning columns which are respectively fixedly arranged at the hollow positions of the large-end adapter plate and the small-end adapter plate and respectively connected to position the two ends of the intermediate supporting column.

[0012] The above-mentioned torsion angle drilling jig is characterized in that the multiple groups of supporting and positioning components are four groups of supporting beam-shaped components respectively arranged at the four corners of the large-end adapter plate in the shape of a hollow rectangular plate.

[0013] The above-mentioned torsion angle drilling template is characterized in that each of the supporting beam-shaped components includes a supporting long beam and an adjusting short beam fixedly connected by a hollow connecting piece, the supporting long beam is fixed on the large end adapter plate, and the adjusting short beam is fixed on the small end adapter plate.

[0014] The above-mentioned torsion angle drilling template is characterized in that an adjusting crossbeam is arranged between every two supporting beam components near the small end adapter plate, and the two ends of the adjusting crossbeam are respectively connected to the hollow connecting piece.

[0015] The above-mentioned torsion angle drill template is characterized in that the fixed drill sleeve on the large-end adapter is provided with a large-end adapter plate end positioning pin, through which the large end of the thin-walled conical cylinder shell is positioned on the large-end adapter plate; the fixed drill sleeve on the small-end adapter plate is provided with a small-end adapter plate end positioning pin, through which the small end of the thin-walled conical cylinder shell is positioned on the small-end adapter plate.

[0016] The above-mentioned torsion angle drilling template is characterized in that a plurality of eye screws are arranged on the small end adapter plate.

[0017] Furthermore, the present invention also provides a method for controlling the torsion angle of the positioning pin holes at both ends of the cone shell by using the torsion angle drilling jig. The two ends of the cone shell are divided into a large end and a small end. The method mainly comprises the following steps:

[0018] S1, respectively setting the large end adapter plate and the small end adapter plate of the torsion angle drilling jig on the large end side and the small end side of the cone shell, and setting the middle positioning component of the torsion angle drilling jig at the axial center of the cone shell;

[0019] S2, using the two positioning pin holes on the large-end adapter plate to position the large end of the cone shell on the large-end adapter plate, using the intermediate positioning assembly to center the small-end adapter plate, and then positioning the small end of the cone shell through the small-end adapter plate;

[0020] S3, connecting the large and small end adapter plates into one body through four sets of supporting and positioning components, and ensuring that the central axis of the middle positioning component coincides with the central axis of the cone shell;

[0021] S4, using the torsion angle drilling jig to drill out a process positioning pin hole at the small end of the cone shell;

[0022] S5, using the small end adapter plate to position the process pin hole, drilling and reaming the positioning pin hole of the small end of the cone cylinder shell, and then using the tilting turntable on the drilling machine to drill and expand the inclined hole of the small end of the cone cylinder shell.

[0023] Compared with the prior art, the application of the torsion angle drilling jig of the present invention to the torsion angle transfer control of the locating pin holes at both ends of a large thin-walled conical cylinder shell can effectively solve the problems of torsion angle offset of the locating pin holes at the large and small ends of large thin-walled conical cylinder shells, poor consistency in batch production of shell pin holes, and difficulty in docking, reduces the risk of misalignment in assembly and docking of workpiece sections, has a reliable process processing method, and has the advantages of stable structure, novel design, good versatility, and high control precision.

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional schematic diagram of the twist angle drilling template structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the BB structure of the torsion drilling template of the present invention;

[0027] Figure 3 This is a schematic diagram of the top view of the twist angle drilling template of the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the torsion drilling template of the present invention;

[0029] Figure 5 The present invention is a three-dimensional cross-sectional schematic diagram of the structure of the torsion angle transfer control equipment using the torsion angle drilling template. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the invention.

[0031] The torsion angle drilling jig of the present invention is a device for controlling the torsion offset of the positioning pin holes at both ends of large thin-walled conical shell workpieces. It is mainly used to solve the problems of poor processing accuracy of the positioning of the pin holes at both ends of large thin-walled conical shell workpieces, easy deviation of the product center, poor batch production consistency, and inability to meet the requirements for precision docking of sections after batch production of products.

[0032] refer to Figure 1-Figure 5The torsion angle drilling jig of the present invention is used to transfer and control the torsion offset of the positioning pin holes at both ends of a large thin-walled conical shell-like workpiece. The torsion angle drilling jig includes a small-end adapter plate 1, a supporting and positioning assembly 2, a large-end adapter plate 3 and an intermediate positioning assembly 4, wherein two fixed drill sleeves 19 are arranged on the large-end adapter plate 3, and two fixed drill sleeves 13 and a replaceable drill sleeve 14 are arranged on the small-end adapter plate. The supporting and positioning assembly 2 is arranged between the large-end adapter plate 3 and the small-end adapter plate 1, and the two ends are respectively fixed to the periphery of the large-end adapter plate 3 and the small-end adapter plate 1 and the large-end adapter plate 3 and the small-end adapter plate 1 are connected and fixed as a whole. The intermediate positioning assembly 4 is arranged between the large-end adapter plate 3 and the small-end adapter plate 1, and the two ends are positioned at the center position of the large-end adapter plate 3 and the small-end adapter plate 1, and the central axis of the intermediate positioning assembly 4 coincides with the central axis of the thin-walled conical shell-like workpiece.

[0033] The support positioning assembly 2 is composed of four groups of beam-shaped support assemblies, each of which includes a support long beam 23, a hollow connector 24 and an adjustable short beam 25, wherein the support long beam 23 is fixedly connected to the adjustable short beam 25 through the hollow connector 24. One end of the adjustable short beam 25 is positioned on the small end adapter plate 1, and one end of the support long beam 23 is fixed on the large end adapter plate 3. An adjustable cross beam 17 is arranged between each two support positioning assemblies 2 near the small end adapter plate, and both ends of the adjustable cross beam 17 are respectively connected and fixed to the hollow connector 24.

[0034] The intermediate positioning assembly 4 includes an intermediate supporting column 40, a large-end intermediate positioning column 41 fixedly welded to both ends of the intermediate supporting column 40, and a small-end intermediate positioning column 42, wherein the large-end intermediate positioning column 41 is fixedly set in the hollow position of the large-end adapter plate 3, and the small-end intermediate positioning column 42 is fixedly set in the hollow position of the small-end adapter plate 1. The large-end intermediate positioning column 41 is fixedly connected to the large-end adapter plate 3 through the large-end positioning boss 21, connecting screws 5, washers 6, and elastic washers 7. The small-end adapter plate 1 is centered by the outer circle of the intermediate positioning column 42, and the conical cylinder shell 22 is positioned and pressed by the positioning circle in the small-end adapter plate 1.

[0035] Two large-end adapter positioning pin hole fixing drill sleeves 19 are arranged on the large-end adapter plate 3, and two large-end adapter plate end surface positioning pins 20 are arranged on the large-end adapter plate 3. The cone shell 22 is positioned on the large-end adapter plate through the two positioning pins.

[0036] The large end adapter plate 3 is a rectangular hollow plate, preferably a square hollow plate. The four groups of support positioning components 2 are respectively arranged at the four corners of the square hollow plate, and are positioned and fixed to the large end adapter plate 3 through the positioning pins 18 and four groups of screws arranged at the large end. The small end adapter plate 1 is connected to the large and small end adapter plates through the small end positioning pin spring pad 8, the pressure sleeve 9, the compression nut 10, the two fixed drill sleeves 11, 12, and the small end positioning pin 16, and the cone shell 22 is flattened. The positioning transfer pin fixing drill sleeve 13 and the replaceable drill sleeve 14 are arranged on the small end adapter plate 1, and the transfer processing of the positioning pin hole is completed through the replaceable drill sleeve 14. A lifting bolt 15 is arranged on the small end adapter plate for lifting the tooling.

[0037] Furthermore, the present invention also provides a method for controlling the torsion angle of the positioning pin holes at both ends of the cone shell by using the torsion angle drilling jig, which is mainly used for controlling the torsion angle of the positioning pin holes at both ends of the large thin-walled cone shell. Figure 4 and Figure 5 , the method mainly comprises the following steps:

[0038] Step 1: respectively set the large end adapter plate 3 and the small end adapter plate 1 of the torsion angle drilling jig on the large end side and the small end side of the cone shell 22, and set the intermediate positioning component 4 at the axial center of the cone shell 22;

[0039] Step 2: Use the two positioning pin holes on the large end adapter plate 3 to position the large end of the cone shell 22 on the large end adapter plate 3, use the intermediate positioning component 4 to center the small end adapter plate 1, and then position the small end of the cone shell 22 through the small end adapter plate 1;

[0040] Step 3: Connect the large and small end adapter plates into one piece through four sets of support and positioning components 2, and ensure that the central axis of the middle positioning component 4 coincides with the central axis of the cone shell 22;

[0041] Step 4: Use the torsion angle drill jig to drill out the process positioning pin hole at the small end of the cone shell 22;

[0042] Step 5: Use the small end adapter plate 1 to position the process pin hole, drill and ream the positioning pin hole of the small end of the cone cylinder shell 22, and then use the tilting turntable on the drilling machine to drill and expand the inclined hole of the small end of the cone cylinder shell 22.

[0043] The torsion angle drilling jig of the present invention is used to control the torsion angle of the locating pin holes at both ends of a large thin-walled conical cylinder shell, which can effectively solve the problems of torsion angle offset of the locating pin holes at the large and small ends of large thin-walled conical cylinder shells, poor consistency in batch production of shell pin holes, and difficulty in docking, thereby reducing the risk of misalignment in assembly and docking of workpiece sections. The process processing method is reliable, and the tooling has the advantages of stable structure, novel design, good versatility, and high control accuracy.

[0044] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A torsion drilling jig, used for torsion angle transfer control of the positioning pin holes at both ends of large thin-walled conical shell workpieces, It is characterized in that include: A large end adapter plate, on which a positioning pin hole is provided to fix the drill sleeve; A small end adapter plate, on which a positioning pin hole is provided to fix the drill sleeve and a replaceable drill sleeve; A plurality of supporting and positioning components are disposed between the large-end adapter plate and the small-end adapter plate, and two ends of each supporting and positioning component are respectively fixed to the periphery of the large-end adapter plate and the small-end adapter plate, and the large-end adapter plate and the small-end adapter plate are connected and fixed as a whole; and An intermediate positioning component is disposed between the large-end adapter plate and the small-end adapter plate, and two ends of the intermediate positioning component are positioned at the center of the large-end adapter plate and the small-end adapter plate; Among them, the large-end adapter plate is a hollow rectangular plate, one end of the four groups of support and positioning components are respectively fixedly set on the large-end adapter plate, and the other end is adjustably connected to the small-end adapter plate; the multiple groups of support and positioning components are four groups of support beam-shaped components respectively set at the four corners of the large-end adapter plate in the shape of a hollow rectangular plate, each of the support beam-shaped components includes a supporting long beam and an adjusting short beam fixedly connected by a hollow connecting piece, the supporting long beam is fixed on the large-end adapter plate, and the adjusting short beam is fixed on the small-end adapter plate, and an adjusting cross beam is set between every two support beam components near the small-end adapter plate, and the two ends of the adjusting cross beam are respectively connected to the hollow connecting piece.

2. The torsion drilling jig according to claim 1, characterized in that: The small end adapter plate is a hollow circular plate formed by connecting inner and outer circular rings through radial rib plates.

3. The torsion drilling jig according to claim 2, characterized in that: The intermediate positioning assembly comprises an intermediate supporting column and intermediate positioning columns which are respectively fixedly arranged at hollow positions of the large-end adapter plate and the small-end adapter plate and respectively connected to position two ends of the intermediate supporting column.

4. The torsion drilling jig according to claim 1, characterized in that: The fixed drill sleeve on the large-end adapter is provided with a positioning pin at the large-end adapter plate end, and the large end of the thin-walled conical cylinder shell is positioned on the large-end adapter plate by the positioning pin; the fixed drill sleeve on the small-end adapter plate is provided with a positioning pin at the small-end adapter plate end, and the small end of the thin-walled conical cylinder shell is positioned on the small-end adapter plate by the positioning pin.

5. The torsion drilling jig according to claim 1, characterized in that: The small end adapter plate is provided with a plurality of eye screws.

6. A method for controlling the torsion angle transfer of the positioning pin holes at both ends of a cone shell using the torsion angle drilling jig according to any one of claims 1 to 5, wherein the two ends of the cone shell are divided into a large end and a small end, characterized in that: include: S1, respectively set the large end adapter plate and the small end adapter plate of the torsion angle drilling jig on the large end side and the small end side of the cone shell, and set the middle positioning component of the torsion angle drilling jig at the axial center of the cone shell; S2, using the two positioning pin holes on the large-end adapter plate to position the large end of the cone shell on the large-end adapter plate, using the intermediate positioning assembly to center the small-end adapter plate, and then positioning the small end of the cone shell through the small-end adapter plate; S3, connecting the large and small end adapter plates into one body through four sets of supporting and positioning components, and ensuring that the central axis of the middle positioning component coincides with the central axis of the cone shell; S4, using the torsion angle drilling jig to drill out a process positioning pin hole at the small end of the cone shell; S5, using the small end adapter plate to position the process pin hole, drilling and reaming the positioning pin hole of the small end of the cone cylinder shell, and then using the tilting turntable on the drilling machine to drill and expand the inclined hole of the small end of the cone cylinder shell.

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