Pipe fitting drilling auxiliary tool and using method

Abstract

The pipe fitting drilling auxiliary tool comprises a base, scales are arranged in the length direction of the base, a first clamp, a second clamp and a third clamp are sequentially installed in the length direction of the base in a sliding mode, and the first clamp and the third clamp are the same in structure and fix the two ends of a pipe fitting correspondingly; a flexible drill jig arranged on the pipe fitting in a sleeving mode is further arranged between the first clamp and the second clamp, and the flexible drill jig can slide on the pipe fitting. Matched drilling holes are formed in the first clamp, the second clamp, the third clamp and the flexible drilling jig; the three clamps capable of sliding are arranged on the base, the scales are arranged on the base, and the requirements of different pipe fitting lengths are met by adjusting the distances among the first clamp, the second clamp and the third clamp; the drilling holes with different angles are formed in the flexible drilling jig, so that drilling of holes with different axial angles can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling tools, and in particular relates to a pipe drilling auxiliary tool and a use method thereof. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Round tube is a common pipe material. When using round tube as a machine component, it is necessary to punch holes in the steel tube to facilitate key connection and positioning. Due to the special cross-section of round tube steel, it is often necessary to plan and drill holes with the help of some small tooling to complete the work. The conventional drilling processing method is as follows: the round tube steel is first fixed, then marked, and then drilled with equipment, which takes a long time. For drilling holes in a tube with multiple holes, multi-angle holes, and large batches of pipe fittings, the cost of machine marking is too high, the efficiency of manual marking is too low, and it is easy to have dimensional errors and other problems. In addition, each replacement of parts requires manual repositioning, which is difficult and the hole position is prone to deviations.

[0004] In the prior art, drilling of pipe fittings is usually done by marking them out by a fitter, but when drilling pipe fittings with multiple holes, multi-angle holes, or in large batches, the cost of machine marking is too high, the efficiency of manual marking is too low, and it is easy to have problems such as dimensional errors. In addition, when the mass of the round tube is large, there are many inconveniences in moving the round tube, resulting in low drilling efficiency of the pipe fittings. Summary of the invention

[0005] The purpose of the present invention is to provide a pipe drilling auxiliary tool, which can locate the drilling position through a scale during the drilling process, and can also locate the drilling positions that are not on the same straight line, thereby improving the drilling efficiency.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In the first aspect, an embodiment of the present invention provides a pipe drilling auxiliary tooling, including a base, a scale is set in the length direction of the base, and a first clamp, a second clamp and a third clamp are slidably installed in sequence in the length direction of the base, the first clamp and the third clamp have the same structure, and respectively fix the two ends of the pipe fitting; a flexible drilling jig is also provided between the first clamp and the second clamp and is sleeved on the pipe fitting, and the flexible drilling jig can slide on the pipe fitting; the first clamp, the second clamp, the third clamp and the flexible drilling jig are all provided with drilling holes.

[0008] As a further technical solution, a slideway is provided on the base, and sliders matching the slideway are provided at the bottom of the first clamp, the second clamp and the third clamp. Through the cooperation of the slideway and the slider, the first clamp, the second clamp and the third clamp are respectively slidably installed on the base.

[0009] As a further technical solution, the first clamp includes an upper fixing clamp and a lower fixing clamp, and the upper fixing clamp and the lower fixing clamp are connected by bolts.

[0010] As a further technical solution, the upper surface of the upper fixing fixture and the lower surface of the lower fixing fixture are both provided with semi-cylindrical pipe accommodating grooves, and after the upper fixing fixture and the lower fixing fixture are butt-jointed, a cylindrical pipe clamping space is formed.

[0011] As a further technical solution, the second clamp includes an upper slider clamp and a lower slider clamp, and the upper slider clamp and the lower slider clamp are locked and fixed by a locking block.

[0012] As a further technical solution, the locking block is in a circular ring shape, and the sides of the upper slider clamp and the lower slider clamp are provided with circular ring grooves matching the locking block. After the locking block is embedded in the upper slider clamp and the lower slider clamp, it is fixed by bolts.

[0013] As a further technical solution, the upper surface of the upper slider clamp and the lower surface of the lower slider clamp are both provided with semi-cylindrical pipe accommodating grooves, and after the upper slider clamp and the lower slider clamp are butt-jointed, a cylindrical pipe clamping space is formed.

[0014] As a further technical solution, semi-circular arc pieces are extended from the sides of the semi-cylindrical pipe accommodating groove of the upper slider clamp and the semi-cylindrical pipe accommodating groove of the lower slider clamp, and a plurality of angle matching drill holes are provided on the semi-circular arc pieces. The angle matching drill holes cooperate with the matching drill holes on the flexible drilling template to perform multi-angle drilling on the pipe fittings.

[0015] As a further technical solution, elastic balls are arranged on the wall surface of the semi-cylindrical pipe accommodating groove, and a plurality of the elastic balls are arranged in the circumferential direction of the pipe and at least two are arranged in the axial direction of the pipe.

[0016] In a second aspect, an embodiment of the present invention provides a method for using a pipe drilling auxiliary tool, comprising the following steps:

[0017] Install the second clamp and the flexible jig on the pipe fitting in advance, and then fix the two ends of the pipe fitting on the first clamp and the second clamp respectively;

[0018] Read the scale size on the base according to the drawing size for positioning;

[0019] Drill holes at both ends of the pipe fitting through the drill holes on the first fixture and the second fixture;

[0020] The middle position of the pipe fitting is drilled through the drill holes on the flexible drilling template; the flexible drilling template can be freely adjusted according to different linear sizes and angles for drilling operations.

[0021] The beneficial effects of the above embodiments of the present invention are as follows:

[0022] The pipe drilling auxiliary tooling provided by the present invention is adapted to the needs of different pipe lengths by arranging three slidable clamps on a base and setting scales on the base, and by adjusting the distances between the first clamp, the second clamp and the third clamp; and by opening matching drill holes of different angles on the flexible drilling template to cooperate with the angle matching drill holes on the second clamp, drilling of holes with different axial angles can be achieved.

[0023] The pipe fitting drilling auxiliary tooling provided by the present invention supports the two ends and the middle position of the pipe fitting by means of three clamps, thereby preventing the pipe fitting from being deformed during the drilling process. Compared with the existing drilling tooling, when changing the drilling position, there is no need to move the pipe fitting, and drilling at different positions can be achieved by moving the second clamp and the flexible drilling template. This tooling is suitable for pipe fittings that are heavy and inconvenient to move.

[0024] The pipe drilling auxiliary tooling provided by the present invention has a base with scales and slides to size and adjust the position of the clamp, the clamp can be replaced with a corresponding model according to the pipe diameter and hole diameter, the fixed clamps at both ends fix the pipe and position the drilling size, the middle slider clamp is connected to the flexible drilling template and adjusts the length size according to the hole position, the flexible drilling template has positioning holes at different angles, the positioning holes determine the drilling position according to the drawing size, and drill the middle part of the pipe to meet the needs of drilling at different angles.

[0025] The pipe drilling auxiliary tooling provided by the present invention configures the first clamp, the second clamp and the third clamp into two butted and detachable structures, which are easy to install and simple to operate during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary 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.

[0027] Figure 1 is a schematic diagram of the pipe drilling auxiliary tooling of the present invention after being disassembled;

[0028] Figure 2 is a schematic diagram of the second clamp of the present invention Figure 1 ;

[0029] Figure 3 is a schematic diagram of the second clamp of the present invention Figure 2 ;

[0030] Figure 4 It is a schematic diagram of the installation process of the pipe drilling auxiliary tooling of the present invention when it is used;

[0031] Figure 5 is a schematic diagram of the pipe drilling auxiliary tooling of the present invention when in use;

[0032] Figure 6 This is a pipe drilling effect diagram obtained by the pipe drilling auxiliary tooling of the present invention.

[0033] The schematic diagram is for illustrative purposes only;

[0034] Among them, 1. base; 101. scale; 102. slide; 2. first clamp; 201. upper fixed clamp; 202. lower fixed clamp; 3. second clamp; 301. upper slider clamp; 302. lower slider clamp; 303. locking block; 304. semicircular arc piece; 305. circular groove; 306. elastic ball; 4. third clamp; 5. flexible drilling jig; 6. matching drilling hole; 601. angle matching drilling hole; 7. pipe fitting; 701. 90° hole; 702. axial angle hole. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] Example 1

[0037] In a typical embodiment of the present invention, Figure 1 and Figure 5 As shown, a pipe drilling auxiliary tool is provided, including a base 1, a scale 101 is arranged in the length direction of the base 1, and a first clamp 2, a second clamp 3 and a third clamp 4 are slidably installed in sequence in the length direction of the base 1, and the first clamp 2 and the third clamp 3 have the same structure and fix the two ends of the pipe fitting respectively; a flexible drilling jig 5 which is sleeved on the pipe fitting is also arranged between the first clamp 2 and the second clamp 3, and the flexible drilling jig 5 can slide on the pipe fitting; the first clamp 2, the second clamp 3, the third clamp 4 and the flexible drilling jig 5 are all provided with matching drilling holes, and the positions of the matching drilling holes can be set according to actual drilling needs.

[0038] In this embodiment, the base 1 is a rectangular plate structure, and a slideway 102 is provided on the base 1. The bottoms of the first clamp 2, the second clamp 3 and the third clamp 4 are all provided with sliders matching the slideway 102. Through the cooperation of the slideway 102 and the slider, the first clamp 2, the second clamp 3 and the third clamp 4 are respectively slidably installed on the base 1. During use, the distance between the first clamp 2, the second clamp 3 and the third clamp 4 can be adjusted according to the length of the pipe to meet the needs of different pipe lengths. The three clamps are provided to support the two ends and the middle position of the pipe to prevent the pipe from being deformed during the drilling process.

[0039] In this embodiment, the first clamp 2 and the third clamp 4 have the same structure. Here, the first clamp is taken as an example for description. The first clamp 2 includes an upper fixing clamp 201 and a lower fixing clamp 202. The upper fixing clamp 201 and the lower fixing clamp 202 are connected by bolts. Furthermore, the upper surface of the upper fixing clamp 201 and the lower surface of the lower fixing clamp 202 are both provided with a semi-cylindrical pipe accommodating groove. After the upper fixing clamp and the lower fixing clamp are butt-jointed, a cylindrical pipe clamping space is formed. By setting the upper fixing clamp 201 and the lower fixing clamp 202 to a detachable structure, it is convenient to clamp the pipe.

[0040] In this embodiment, the slideway on the base and the slider at the bottom of the fixture adopt a positive and negative trapezoidal matching design to ensure the axial accuracy of the pipe fitting and prevent the two lower fixtures from moving up and down. The first fixture 2, the second fixture 3 and the third fixture 4 can all be set to slide with the base, or the active end of the tooling (i.e., the first fixture 2) can be provided with four lengthened bolts to be fixedly connected to the base 1. The intermediate slider fixture (i.e., the second fixture 3) and the driven end fixed fixture (the third fixture 4) are slidably connected to the base without adding additional fixing auxiliary devices, which reduces the operation time and tooling cost. The second fixture 3 and the third fixture 4 can locate the axial drilling size of the pipe fitting according to the scale.

[0041] In a specific implementation of this embodiment, the first fixture 2 is provided with a drill hole for a 90° hole of a pipe fitting, and after the 90° hole is drilled, a positioning pin is used to fix the position of the pipe fitting, thereby increasing the auxiliary fixing function of the pipe fitting.

[0042] like Figure 2 and Figure 3 As shown, the second clamp 3 includes an upper slider clamp 301 and a lower slider clamp 302 , and the upper slider clamp 301 and the lower slider clamp 302 are locked and fixed by a locking block 303 .

[0043] Specifically, the locking block 303 is in an annular shape, and the sides of the upper slider clamp 301 and the lower slider clamp 302 are provided with an annular groove 305 matching the locking block 303. After the locking block 303 is embedded in the upper slider clamp 301 and the lower slider clamp 302, it is fixed by bolts.

[0044] Furthermore, the upper surface of the upper slider fixture 301 and the lower surface of the lower slider fixture 302 are both provided with a semi-cylindrical pipe fitting accommodating groove. After the upper slider fixture 301 and the lower slider fixture 302 are docked, a cylindrical pipe fitting clamping space is formed. An elastic ball 306 is provided on the wall surface of the semi-cylindrical pipe fitting accommodating groove. A plurality of elastic balls 306 are provided in the circumferential direction of the pipe fitting, and at least two are provided in the axial direction of the pipe fitting. After the upper slider fixture 301 and the lower slider fixture 302 are assembled, they are fixed as an integral slider fixture with a locking block 303, so that the pipe fitting is in the axial center position. After drilling the first hole, the axial sliding can be carried out according to the design scheme to drill the next hole. After processing the first pipe fitting, the fixing fixture bolts at both ends can be loosened, and the pipe fitting can be directly pulled out from the driven end to replace the next pipe fitting to be processed without disassembling the upper and lower slider fixtures in the middle, so that the front and rear processes are smoother.

[0045] Furthermore, semi-circular arc pieces 304 are extended from the sides of the semi-cylindrical pipe fitting accommodating groove of the upper slider clamp 301 and the semi-cylindrical pipe fitting accommodating groove of the lower slider clamp 302, and the semi-circular arc pieces 304 extend toward the direction of the flexible drilling template 5. The semi-circular arc pieces 304 are provided with multiple angle drilling holes 601, and the angle drilling holes 601 cooperate with the drilling holes 6 on the flexible drilling template 5 to perform multi-angle drilling on the pipe fitting; during the drilling process, the second clamp 3 is adjusted in real time according to the drilling position, and one end of the flexible drilling template 5 can be sleeved on the semi-circular arc piece after docking and abut against the side of the second clamp. The extended semi-circular arc piece 304 cooperates with the flexible drilling template 5, which provides a certain support for the drilling position and is also conducive to reading the scale of the drilling hole according to the position of the second clamp, and adjusting the position of the second clamp 3 and the flexible drilling template 5 according to the needs of the drilling position.

[0046] In this embodiment, the inner diameter of the flexible drilling jig 5 is larger than the outer diameter of the pipe to be drilled to ensure that the flexible drilling jig 5 can slide on the pipe. The need to open holes at different positions on the pipe can be achieved by adjusting the position of the flexible drilling jig 5.

[0047] In a specific implementation of the present embodiment, the flexible drilling jig 5 is designed with two matching drilling holes 6, one of which is at the same zero point position as the angled drilling hole 601, and the other matching drilling hole is relatively offset by 45°. The angled matching drilling holes of the flexible drilling jig 5 are evenly distributed at an angle of 30°. The angle adjustment holes designed for the upper slider fixture 301 are arranged at an angle of 30°, and can be used in conjunction with the flexible drilling jig 5 to achieve multi-angle hole matching operations such as 15°, 30°, 45°, 60°, 75°, and 90°. The angle assembly hole of the flexible drilling jig 5 is fixed to the angle adjustment hole designed for the upper slider fixture 301 with bolts, and the flexible drilling jig 5 can be replaced and used by selecting a suitable model according to different angles or pipe diameters.

[0048] The use process of the pipe drilling auxiliary tool provided in this embodiment is as follows:

[0049] 1. Install the lower fixing fixture 202 and the lower slider fixture onto the slideway 102 of the base 1, and read the scale 101 on the base 1 for positioning according to the drawing dimensions.

[0050] 2. Put the locking block 303 and the flexible drilling jig 5 on the pipe 7 in advance, and then place them in the arc groove of the lower fixing fixture 202 and the lower slider fixture 302 for positioning. Figure 4 shown.

[0051] 3. Install the upper fixing fixture 201 and the upper slider fixture 301, assemble the upper fixing fixture 201 and the lower fixing fixture 202 using the locking block 303, and tighten and fix them with bolts.

[0052] 4. The upper fixing fixture 201 positions the holes at both ends of the pipe fitting 7, and the drilling operation is performed using the matching drill holes 6 on the flexible drilling template 5.

[0053] 5. Select the drilling holes for assembly and positioning according to the drilling angle of the flexible drilling template 5.

[0054] 6. The flexible drilling jig 5 can be freely adjusted according to different linear dimensions and angles for drilling operations. Figure 6 As shown, drilling of a 90° hole 701 and an axial angle hole 702 can be achieved.

[0055] Example 2

[0056] In a typical embodiment of the present invention, a method for using a pipe drilling auxiliary tool is provided, comprising the following steps:

[0057] Install the second clamp and the flexible jig on the pipe fitting in advance, and then fix the two ends of the pipe fitting on the first clamp and the second clamp respectively;

[0058] Read the scale size on the base according to the drawing size for positioning;

[0059] Drill holes at both ends of the pipe fitting through the drill holes on the first fixture and the second fixture;

[0060] The middle position of the pipe fitting is drilled through the drill holes on the flexible drilling template; the flexible drilling template can be freely adjusted according to different linear sizes and angles for drilling operations.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe drilling auxiliary tool, characterized in that: It includes a base, which is provided with a scale in the length direction of the base, and a first clamp, a second clamp and a third clamp are slidably installed in sequence in the length direction of the base, the first clamp and the third clamp have the same structure, and fix the two ends of the pipe fitting respectively; a flexible drilling jig sleeved on the pipe fitting is also provided between the first clamp and the second clamp, and the flexible drilling jig can slide on the pipe fitting; the first clamp, the second clamp, the third clamp and the flexible drilling jig are all provided with matching drilling holes.

2. The pipe drilling auxiliary tool as claimed in claim 1, characterized in that: The base is provided with a slideway, and the bottoms of the first clamp, the second clamp and the third clamp are provided with sliders matching the slideway. Through the cooperation of the slideway and the slider, the first clamp, the second clamp and the third clamp are respectively slidably installed on the base.

3. The pipe drilling auxiliary tool as claimed in claim 1, characterized in that: The first clamp includes an upper fixing clamp and a lower fixing clamp, and the upper fixing clamp and the lower fixing clamp are connected by bolts.

4. The pipe drilling auxiliary tool as claimed in claim 3, characterized in that: The upper surface of the upper fixing fixture and the lower surface of the lower fixing fixture are both provided with a semi-cylindrical pipe accommodating groove, and after the upper fixing fixture and the lower fixing fixture are butt-jointed, a cylindrical pipe clamping space is formed.

5. The pipe drilling auxiliary tool as claimed in claim 1, characterized in that: The second clamp includes an upper slider clamp and a lower slider clamp, and the upper slider clamp and the lower slider clamp are locked and fixed by a locking block.

6. The pipe drilling auxiliary tool as claimed in claim 5, characterized in that: The locking block is in the shape of a ring, and the sides of the upper slider clamp and the lower slider clamp are provided with ring grooves matching the locking block. After the locking block is embedded in the upper slider clamp and the lower slider clamp, it is fixed by bolts.

7. The pipe drilling auxiliary tool as claimed in claim 5, characterized in that: The upper surface of the upper slider clamp and the lower surface of the lower slider clamp are both provided with a semi-cylindrical pipe accommodating groove, and after the upper slider clamp and the lower slider clamp are butt-jointed, a cylindrical pipe clamping space is formed.

8. The pipe drilling auxiliary tool as claimed in claim 7, characterized in that: Semi-circular arc pieces are extended from the sides of the semi-cylindrical pipe accommodating groove of the upper slider clamp and the semi-cylindrical pipe accommodating groove of the lower slider clamp. A plurality of angled drill holes are arranged on the semi-circular arc pieces. The angled drill holes cooperate with the drill holes on the flexible drilling template to perform multi-angle drilling on the pipe fittings.

9. The pipe drilling auxiliary tool as claimed in claim 7, characterized in that: Elastic balls are arranged on the wall surface of the semi-cylindrical pipe accommodating groove. A plurality of elastic balls are arranged in the circumferential direction of the pipe and at least two are arranged in the axial direction of the pipe.

10. A method for using the pipe drilling auxiliary tool as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Install the second clamp and the flexible jig on the pipe fitting in advance, and then fix the two ends of the pipe fitting on the first clamp and the second clamp respectively; Read the scale size on the base according to the drawing size for positioning; Drill holes at both ends of the pipe fitting through the drill holes on the first fixture and the second fixture; The middle position of the pipe fitting is drilled through the drill holes on the flexible drilling template; the flexible drilling template can be freely adjusted according to different linear sizes and angles for drilling operations.

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