Bent pipe position degree measuring tool

Abstract

The utility model provides a bent pipe position degree measuring tool which comprises a bottom plate and a to-be-detected bent pipe, the bottom plate is provided with a hole site detection mechanism and a hole diameter detection mechanism, the bent pipe is provided with a first pipe hole and a second pipe hole which are communicated with each other, the outer wall of the bent pipe is provided with a circular boss, and the circular boss is provided with a third pipe hole. The hole site detection mechanism comprises a detection ring, a fixing frame, a positioning plate and a fixing plate, a first hole site detection rod is installed above the fixing frame, a detection head is installed at one end of the first hole site detection rod, a second hole site detection rod is installed on the side face of the fixing plate, and a hole site detection ring is installed at one end of the second hole site detection rod. The hole diameter detection mechanism comprises a first fixed column and a second fixed column, the bent pipe is installed on the first fixed column through an installation plate, and the second fixed column is provided with an installation base, a hinge base, a plug gauge fixed base and a movable base. And the production efficiency is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring tools, in particular to a pipe bending position measuring tool for detecting the position of a pipe bending. Background Art

[0002] Bends are widely used in the manufacturing industry. At present, due to the irregular shape of the bends, the length and position of the bends need to be tested before they are assembled to ensure smooth assembly. In the prior art, bends are usually tested in the following two ways. The first is to manually use a steel ruler and a tape measure for testing, but there are human errors, resulting in inaccurate test results, and there are problems such as low test efficiency, large number of personnel, and high labor intensity. The second is to use an infrared three-dimensional scanner for testing, but there are problems such as low test efficiency, poor test versatility, high cost, and complex operation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a bend position measuring tool, which can realize simulated assembly of products, plays a great role in both process inspection and final inspection, and indirectly improves production efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The bend pipe position measuring tool is characterized in that it includes a bottom plate and a bend pipe to be detected, the bottom plate is provided with a hole position detection mechanism and an aperture detection mechanism, the bend pipe to be detected has a first pipe hole and a second pipe hole that are interconnected, the outer wall of the bend pipe to be detected is provided with a circular boss, the circular boss is provided with a third pipe hole, the hole position detection mechanism includes a detection ring for detecting the first pipe hole on the bend pipe to be detected, the detection ring is fixed on the bottom plate, the end surface of the first pipe hole on the bend pipe to be detected is provided with a mounting plate, the second pipe hole of the bend pipe to be detected is inserted on the detection ring to realize the detection of the first pipe hole, and also includes a fixing frame, a positioning plate and a fixing plate, the The fixing frame and the fixing plate are relatively fixed on the bottom plate, the positioning plate is fixed between the fixing frame and the fixing plate, a first hole position detection rod is installed above the fixing frame, a detection head is installed at one end of the first hole position detection rod, a second hole position detection rod is installed on the side of the fixing plate, a hole position detection ring is installed at one end of the second hole position detection rod, the bent pipe to be detected is fixed to the positioning plate through the mounting plate, at this time, the third pipe hole on the bent pipe to be detected is located directly below the first hole position detection rod, the detection head is inserted into the third pipe hole, the second pipe hole on the bent pipe to be detected is vertical and directly opposite to the second hole position detection rod, and the second pipe hole is inserted into the hole position detection ring,

[0006] The aperture detection mechanism includes a first fixed column and a second fixed column. The height of the bent pipe to be detected is smaller than the height of the fixed column. The bent pipe to be detected is installed on the first fixed column through a mounting plate. The second fixed column is provided with a mounting seat, a hinged seat, a plug gauge fixing seat and a movable seat. The mounting seat is fixed on the second fixed column, and the hinged seat is fixed on the mounting seat. The plug gauge fixing seat and the movable seat are respectively hinged on the hinged seat. The plug gauge fixing seat is detachably installed with a plug gauge for detecting the first pipe hole, the second pipe hole and the third pipe hole on the bent pipe to be detected.

[0007] In the above structure: the bend position measuring tool proposed by the utility model includes a base plate and a bend to be detected, and a hole position detection mechanism and an aperture detection mechanism are arranged on the base plate, wherein the hole position detection mechanism is used to detect whether the position of the tube hole on the bend to be detected has deviation, and the aperture detection mechanism is used to detect the aperture size of the tube hole on the bend to be detected, the bend to be detected has a first tube hole and a second tube hole which are interconnected, and a circular boss is arranged on the outer wall of the bend to be detected, and a third tube hole is arranged on the circular boss, and the third tube hole is opposite to the first tube hole.

[0008] The hole position detection mechanism includes a detection ring for detecting the first tube hole on the bent pipe to be detected, a hole position detection ring for detecting the second tube hole, and a detection head for detecting the third tube hole. The specific structure is as follows:

[0009] The detection ring is fixed on the bottom plate, and a mounting plate is arranged on the end surface of the first tube hole on the bent pipe to be detected. The second tube hole of the bent pipe to be detected is inserted on the detection ring. At this time, the mounting plate is against the detection ring, and the detection of the first tube hole can be realized through the detection ring.

[0010] The fixing frame and the fixing plate are relatively fixed on the bottom plate, and the positioning plate is fixed between the fixing frame and the fixing plate. A first hole position detection rod is installed above the fixing frame, and a detection head is installed at one end of the first hole position detection rod. A second hole position detection rod is installed on the side of the fixing plate, and a hole position detection ring is installed at one end of the second hole position detection rod. The bent pipe to be detected is fixed to the positioning plate through the mounting plate. At this time, the third pipe hole on the bent pipe to be detected is located directly below the first hole position detection rod. The detection head is inserted into the third pipe hole to realize position detection of the third pipe hole. The second pipe hole on the bent pipe to be detected is perpendicular and directly opposite to the second hole position detection rod. The second pipe hole is inserted into the hole position detection ring to realize position detection of the second pipe hole.

[0011] The aperture detection mechanism includes a first fixed column and a second fixed column. In order to facilitate the installation and fixation of the bent pipe to be detected, the height of the bent pipe to be detected is smaller than the height of the fixed column. The first fixed column is used to realize the fixation of the bent pipe to be detected, and the second fixed column is used to fix the detection device for detecting three pipe holes on the bent pipe to be detected. The detection device includes a mounting seat, a hinged seat, a plug gauge fixing seat and a movable seat. A plug gauge for detecting the first pipe hole, the second pipe hole and the third pipe hole on the bent pipe to be detected is detachably installed on the plug gauge fixing seat. The detection of the three pipe holes can be achieved by operating the plug gauge fixing seat and the movable seat.

[0012] Furthermore: a fixing block is fixed on the bottom plate, and the fixing blocks are respectively fixed on both sides of the detection ring. When the third pipe hole on the bent pipe to be detected is inserted into the detection ring, the mounting plate abuts against the fixing block.

[0013] In the above structure: the fixing block is used to fix the detection ring, and when the first pipe hole is inserted into the detection ring, the mounting plate is tightly attached to the fixing block.

[0014] Further: it also includes a first positioning block, the fixing frame is arranged in an L shape, the L-shaped fixing frame is inverted and vertically fixed on the bottom plate, a through hole is arranged above the fixing frame, the through hole and the third tube hole are located on the same vertical line, the first hole position detection rod is installed in the through hole, the first positioning block is fixed on the first hole position detection rod and is located outside the fixing frame, and the first positioning block is provided with a pin hole for fixing the first hole position detection rod.

[0015] In the above structure: the first positioning block is fixed on the first hole position detection rod, and a pin hole is provided on the first positioning block. When the first hole position detection rod is installed in the through hole, the first hole position detection rod can be fixed by the first positioning block, thereby facilitating monitoring by the detection head thereon.

[0016] Further: it also includes a second positioning block, the cross-section of the fixing plate is L-shaped, a through hole is provided on the side of the fixing plate, the through hole and the second tube hole are located on the same horizontal line, the second hole position detection rod is installed in the through hole, and the second fixing block is fixed on the second hole position detection rod and is located on the outside of the fixing plate.

[0017] In the above structure: the second positioning block is used to fix and install the second hole position detection rod. To facilitate the detection of the hole position detection ring on the second hole position detection rod, the through hole and the second tube hole are set on the same horizontal line.

[0018] Further: it also includes an auxiliary positioning block, a connecting rod and an auxiliary positioning rod, the auxiliary positioning block is fixed on the fixed plate and is located on the same plane as the second positioning block, the auxiliary positioning rod is fixed on the auxiliary positioning block, one end of the connecting rod is fixed on the side wall of the second fixed block, a positioning hole is opened on the auxiliary positioning rod block and along its length direction, and the other end of the connecting rod is inserted into the positioning hole.

[0019] In the above structure: the auxiliary positioning block and the auxiliary positioning rod are used to realize the positioning of the second hole position detection rod, one end of the connecting rod is fixed on the side wall of the second positioning block, a positioning hole is opened on the auxiliary positioning rod, and the other end of the connecting rod is inserted into the positioning hole. By placing one end of the connecting rod into different positioning holes, the position of the second hole position detection rod and the hole position detection ring thereon can be adjusted.

[0020] Further: the hole position detection ring is set to be cylindrical, one end face of the hole position detection ring is fixed on the second hole position detection rod, and the other end face is provided with a groove adapted to the second tube hole.

[0021] In the above structure: the groove on the hole position detection ring is matched with the size of the second pipe hole, which is convenient for detection.

[0022] Furthermore: four first fixing columns are provided, one end of the first fixing column is fixed to the bottom plate, and the other end is provided with a pin hole, and the mounting plate is fixed to the end of the first fixing column by the pin.

[0023] In the above structure: the mounting plate is fixed by pins, which is convenient for later removal, and different surfaces of different bent pipes to be tested are replaced to test different pipe holes.

[0024] Further: a pin hole is provided on the hinge seat, and the hinge seat is fixed on the mounting seat by a pin.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. The utility model can simulate the assembly of products, which can play a great role in both process inspection and final inspection, and indirectly improve production efficiency.

[0027] 2. Because the side of the product is a rectangular structure with an arc, there are relative contour requirements for the measurement benchmark. Therefore, a conformal structure is adopted on the side, that is, a groove matching the second tube hole is provided on one end face of the hole position detection ring, and the measuring tool ensures that the position of the structure is in the vertical direction, so that the measuring tool can measure both the shape of the structure and the relative position of the part.

[0028] 3. The utility model can measure the size of each hole through the matching plug gauge to measure the pass and stop ends, and reasonably design the dimensional accuracy of the pass and stop ends, thereby ensuring the size of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the hole position detection mechanism in the utility model;

[0031] Figure 3 It is a schematic diagram of the aperture detection mechanism of the utility model;

[0032] Figure 4 It is a schematic diagram of the positioning mechanism in the utility model;

[0033] Figure 5 It is a schematic diagram of the detection ring in the utility model.

[0034] List of reference numerals:

[0035] 1. Bottom plate; 2. Bend to be tested; 21. First tube hole; 22. Second tube hole; 23. Third tube hole; 3. Fixing frame; 4. First positioning block; 5. First hole detection rod; 51. Testing head; 6. Positioning plate; 7. Fixing plate; 8. Second hole detection rod; 9. Second positioning block; 10. Auxiliary positioning block; 101. Connecting rod; 11. Auxiliary positioning rod; 12. Aperture detection ring; 13. First fixed column; 14. Second fixed column; 15. Mounting seat; 16. Articulated seat; 17. Plug gauge fixing seat; 18. Movable seat; 19. Testing ring; 191. Fixing block. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0037] like Figure 1-5As shown, the present application proposes a bend position measuring tool, comprising a base plate 1 and a bend 2 to be detected, the base plate 1 is provided with a hole position detection mechanism and an aperture detection mechanism, the bend 2 to be detected has a first tube hole 21 and a second tube hole 22 that are interconnected, the outer wall of the bend 2 to be detected is provided with a circular boss, the circular boss is provided with a third tube hole 23, the hole position detection mechanism comprises a detection ring 19 for detecting the first tube hole 21 on the bend 2 to be detected, the detection ring 19 is fixed on the base plate 1, a mounting plate is provided on the end surface of the first tube hole 21 on the bend 2 to be detected, the second tube hole 22 of the bend 2 to be detected is inserted into the detection ring 19 to realize the detection of the first tube hole 21, and also comprises a fixing frame 3, a positioning plate 6 and a fixing plate 7, The fixing frame 3 and the fixing plate 7 are relatively fixed on the bottom plate 1, the positioning plate 6 is fixed between the fixing frame 3 and the fixing plate 7, a first hole position detection rod 5 is installed above the fixing frame 3, one end of the first hole position detection rod 5 is installed with a detection head 51, a second hole position detection rod 8 is installed on the side of the fixing plate 7, one end of the second hole position detection rod 8 is installed with a hole position detection ring 19, the curved pipe 2 to be detected is fixed to the positioning plate 6 through the mounting plate, at this time, the third pipe hole 23 on the curved pipe 2 to be detected is located directly below the first hole position detection rod 5, the detection head 51 is inserted into the third pipe hole 23, the second pipe hole 22 on the curved pipe 2 to be detected is vertical and directly opposite to the second hole position detection rod 8, and the second pipe hole 22 is inserted into the hole position detection ring 19,

[0038] The aperture detection mechanism includes a first fixed column 13 and a second fixed column 14. The height of the curved pipe 2 to be detected is smaller than the height of the fixed columns. The curved pipe 2 to be detected is installed on the first fixed column 13 through a mounting plate. The second fixed column 14 is provided with a mounting seat 15, a hinged seat 16, a plug gauge fixing seat 17 and a movable seat 18. The mounting seat 15 is fixed on the second fixed column 14, the hinged seat 16 is fixed on the mounting seat 15, the plug gauge fixing seat 17 and the movable seat 18 are respectively hinged on the hinged seat 16, and a plug gauge for detecting a first pipe hole 21, a second pipe hole 22 and a third pipe hole 23 on the curved pipe 2 to be detected is detachably installed on the plug gauge fixing seat 17.

[0039] The utility model provides a bend pipe position measuring tool, comprising a base plate 1 and a bend pipe 2 to be detected, wherein a hole position detecting mechanism and an aperture detecting mechanism are arranged on the base plate 1, wherein the hole position detecting mechanism is used to detect whether the position of the pipe hole on the bend pipe 2 to be detected has a deviation, and the aperture detecting mechanism is used to detect the aperture size of the pipe hole on the bend pipe 2 to be detected, the bend pipe 2 to be detected has a first pipe hole 21 and a second pipe hole 22 which are interconnected, a circular boss is arranged on the outer wall of the bend pipe 2 to be detected, a third pipe hole 23 is arranged on the circular boss, and the third pipe hole 23 is opposite to the first pipe hole 21.

[0040] The hole position detection mechanism includes a detection ring 19 for detecting the first tube hole 21 on the bent pipe 2 to be detected, a hole position detection ring 19 for detecting the second tube hole 22, and a detection head 51 for detecting the third tube hole 23. The specific structure is as follows:

[0041] The detection ring 19 is fixed on the bottom plate 1, and a mounting plate is provided on the end surface of the first tube hole 21 on the bent pipe 2 to be detected. The second tube hole 22 of the bent pipe 2 to be detected is inserted into the detection ring 19. At this time, the mounting plate is against the detection ring 19, and the detection of the first tube hole 21 can be realized through the detection ring 19.

[0042] The fixing frame 3 and the fixing plate 7 are relatively fixed on the bottom plate 1, and the positioning plate 6 is fixed between the fixing frame 3 and the fixing plate 7. A first hole position detection rod 5 is installed above the fixing frame 3, and a detection head 51 is installed at one end of the first hole position detection rod 5. A second hole position detection rod 8 is installed on the side of the fixing plate 7, and a hole position detection ring 19 is installed at one end of the second hole position detection rod 8. The bent pipe 2 to be detected is fixed to the positioning plate 6 through the mounting plate. At this time, the third pipe hole 23 on the bent pipe 2 to be detected is located directly below the first hole position detection rod 5. The detection head 51 is inserted into the third pipe hole 23, so that the position detection of the third pipe hole 23 can be realized. The second pipe hole 22 on the bent pipe 2 to be detected is perpendicular and directly opposite to the second hole position detection rod 8. The second pipe hole 22 is inserted into the hole position detection ring 19, so that the position detection of the second pipe hole 22 can be realized.

[0043] The aperture detection mechanism includes a first fixed column 13 and a second fixed column 14. In order to facilitate the installation and fixation of the bent pipe 2 to be detected, the height of the bent pipe 2 to be detected is smaller than the height of the fixed column. The first fixed column 13 is used to realize the fixation of the bent pipe 2 to be detected, and the second fixed column 14 is used to fix the detection device for detecting the three pipe holes on the bent pipe 2 to be detected. The detection device is a mounting seat 15, a hinged seat 16, a plug gauge fixing seat 17 and a movable seat 18. A plug gauge for detecting the first pipe hole 21, the second pipe hole 22 and the third pipe hole 23 on the bent pipe 2 to be detected is detachably installed on the plug gauge fixing seat 17. The detection of the three pipe holes can be achieved by operating the plug gauge fixing seat 17 and the movable seat 18.

[0044] In this embodiment: a fixing block 191 is also fixed on the bottom plate 1, and the fixing blocks 191 are respectively fixed on both sides of the detection ring 19. When the third pipe hole 23 on the bent pipe 2 to be detected is inserted into the detection ring 19, the mounting plate abuts against the fixing block 191. The fixing block 191 is used to fix the detection ring 19. When the first pipe hole 21 is inserted into the detection ring 19, the mounting plate is tightly attached to the fixing block 191.

[0045] In this embodiment: it also includes a first positioning block 4, the fixing frame 3 is set to be L-shaped, the L-shaped fixing frame 3 is inverted and vertically fixed on the bottom plate 1, a through hole is set above the fixing frame 3, the through hole and the third tube hole 23 are located on the same vertical line, the first hole position detection rod 5 is installed in the through hole, the first positioning block 4 is fixed on the first hole position detection rod 5 and is located outside the fixing frame 3, and the first positioning block 4 is provided with a pin hole for fixing the first hole position detection rod 5. The first positioning block 4 is fixed on the first hole position detection rod 5, and the first positioning block 4 is provided with a pin hole. When the first hole position detection rod 5 is installed in the through hole, the first hole position detection rod 5 can be fixed by the first positioning block 4, so as to facilitate the monitoring of the detection head 51 thereon.

[0046] In this embodiment: a second positioning block 9 is also included, the cross section of the fixing plate 7 is L-shaped, a through hole is provided on the side of the fixing plate 7, the through hole and the second tube hole 22 are located at the same horizontal line, the second hole position detection rod 8 is installed in the through hole, and the second fixing block 191 is fixed on the second hole position detection rod 8 and is located outside the fixing plate 7. The second positioning block 9 is used to fix and install the second hole position detection rod 8. In order to facilitate the detection of the hole position detection ring 19 on the second hole position detection rod 8, the through hole and the second tube hole 22 are set at the same horizontal line.

[0047] In this embodiment: it also includes an auxiliary positioning block 10, a connecting rod 101 and an auxiliary positioning rod 11. The auxiliary positioning block 10 is fixed on the fixed plate 7 and is located on the same plane as the second positioning block 9. The auxiliary positioning rod 11 is fixed on the auxiliary positioning block 10. One end of the connecting rod 101 is fixed on the side wall of the second fixed block 191. A positioning hole is provided on the auxiliary positioning rod 11 and along its length direction. The other end of the connecting rod 101 is inserted into the positioning hole. The auxiliary positioning block 10 and the auxiliary positioning rod 11 are used to realize the positioning of the second hole position detection rod 8. One end of the connecting rod 101 is fixed on the side wall of the second positioning block 9. A positioning hole is provided on the auxiliary positioning rod 11. The other end of the connecting rod 101 is inserted into the positioning hole. By placing one end of the connecting rod 101 into different positioning holes, the position adjustment of the second hole position detection rod 8 and the hole position detection ring 19 thereon can be realized.

[0048] In this embodiment, the hole position detection ring 19 is set to be cylindrical, one end face of the hole position detection ring 19 is fixed to the second hole position detection rod 8, and the other end face is provided with a groove adapted to the second tube hole 22. The groove on the hole position detection ring 19 is adapted to the size of the second tube hole 22, which is convenient for detection.

[0049] In this embodiment: four first fixing columns 13 are provided, one end of the first fixing column 13 is fixed on the base plate 1 , and the other end is provided with a pin hole, and the mounting plate is fixed to the end of the first fixing column 13 by the pin.

[0050] The mounting plate is fixed by pins, which is convenient for later removal, and different surfaces of different bent pipes to be tested can be replaced to test different pipe holes.

[0051] The hinge seat 16 is provided with a pin hole, and the hinge seat 16 is fixed on the mounting seat 15 by a pin.

[0052] 1. The utility model can simulate the assembly of products, which can play a great role in both process inspection and final inspection, and indirectly improve production efficiency.

[0053] 2. Since the side of the product is a rectangular structure with an arc, there are relative contour requirements for the measurement reference. Therefore, a conformal structure is adopted on the side, that is, a groove matching the second tube hole 22 is provided on one end face of the hole position detection ring 19, and the measuring tool ensures that the position of the structure is in the vertical direction, so that the measuring tool can measure both the shape of the structure and the relative position of the part.

[0054] 3. The utility model can measure the size of each hole through the matching plug gauge to measure the pass and stop ends, and reasonably design the dimensional accuracy of the pass and stop ends, thereby ensuring the size of the product.

[0055] The above is only a preferred embodiment of the present invention and does not constitute any other limitation on the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. The bend position measuring tool is characterized by: The invention comprises a bottom plate (1) and a bend pipe (2) to be detected, wherein the bottom plate (1) is provided with a hole position detection mechanism and an aperture detection mechanism, the bend pipe (2) to be detected has a first pipe hole (21) and a second pipe hole (22) which are connected to each other, the outer wall of the bend pipe (2) to be detected is provided with a circular boss, and the circular boss is provided with a third pipe hole (23), the hole position detection mechanism comprises a detection ring (19) for detecting the first pipe hole (21) on the bend pipe (2) to be detected, the detection ring (19) is fixed on the bottom plate (1), and a mounting plate is provided on the end surface of the first pipe hole (21) on the bend pipe (2) to be detected, and the second pipe hole (22) of the bend pipe (2) to be detected is inserted into the detection ring (19) to realize the detection of the first pipe hole (21), and the invention also comprises a fixing frame (3), a positioning plate (6) and a fixing plate (7), wherein the fixing frame (3) and the fixing plate (7) are provided with a mounting plate. ) is relatively fixed on the bottom plate (1), the positioning plate (6) is fixed between the fixing frame (3) and the fixing plate (7), a first hole position detection rod (5) is installed above the fixing frame (3), one end of the first hole position detection rod (5) is installed with a detection head (51), a second hole position detection rod (8) is installed on the side of the fixing plate (7), one end of the second hole position detection rod (8) is installed with a hole position detection ring (19), the bent pipe (2) to be detected is fixed on the positioning plate (6) through the mounting plate, at this time, the third pipe hole (23) on the bent pipe (2) to be detected is located directly below the first hole position detection rod (5), the detection head (51) is inserted into the third pipe hole (23), the second pipe hole (22) on the bent pipe (2) to be detected is vertical and directly opposite to the second hole position detection rod (8), and the second pipe hole (22) is inserted into the hole position detection ring (19), The aperture detection mechanism comprises a first fixed column (13) and a second fixed column (14); the height of the curved pipe (2) to be detected is smaller than the height of the fixed columns; the curved pipe (2) to be detected is mounted on the first fixed column (13) via a mounting plate; the second fixed column (14) is provided with a mounting seat (15), an articulated seat (16), a plug gauge fixing seat (17) and a movable seat (18); the mounting seat (15) is fixed on the second fixed column (14); the articulated seat (16) is fixed on the mounting seat (15); the plug gauge fixing seat (17) and the movable seat (18) are respectively hinged on the articulated seat (16); and a plug gauge for detecting a first pipe hole (21), a second pipe hole (22) and a third pipe hole (23) on the curved pipe (2) to be detected is detachably mounted on the plug gauge fixing seat (17).

2. The bend pipe position measuring tool according to claim 1, characterized in that: A fixing block (191) is also fixed on the bottom plate (1), and the fixing block (191) is respectively fixed on both sides of the detection ring (19). When the third pipe hole (23) on the bent pipe (2) to be detected is inserted into the detection ring (19), the mounting plate abuts against the fixing block (191).

3. The bend pipe position measuring tool according to claim 1, characterized in that: The invention also comprises a first positioning block (4), the fixing frame (3) is arranged in an L shape, the L-shaped fixing frame (3) is inverted and vertically fixed on the bottom plate (1), a through hole is arranged above the fixing frame (3), the through hole and the third tube hole (23) are located on the same vertical line, the first hole position detection rod (5) is installed in the through hole, the first positioning block (4) is fixed on the first hole position detection rod (5) and is located outside the fixing frame (3), and the first positioning block (4) is provided with a pin hole for fixing the first hole position detection rod (5).

4. The bend pipe position measuring tool according to claim 1, characterized in that: The invention also comprises a second positioning block (9) and a second fixing block (191); the fixing plate (7) has an L-shaped cross section; a through hole is arranged on the side of the fixing plate (7); the through hole and the second tube hole (22) are located on the same horizontal line; the second hole position detection rod (8) is installed in the through hole; and the second fixing block (191) is fixed on the second hole position detection rod (8) and is located on the outside of the fixing plate (7).

5. The bend pipe position measuring tool according to claim 1 or 4, characterized in that: It also includes an auxiliary positioning block (10), a connecting rod (101) and an auxiliary positioning rod (11); the auxiliary positioning block (10) is fixed on the fixing plate (7) and is located on the same plane as the second positioning block (9); the auxiliary positioning rod (11) is fixed on the auxiliary positioning block (10); one end of the connecting rod (101) is fixed on the side wall of the second fixing block (191); a positioning hole is provided on the auxiliary positioning rod (11) and along its length direction; the other end of the connecting rod (101) is inserted into the positioning hole.

6. The bend pipe position measuring tool according to claim 1, characterized in that: The hole position detection ring (19) is arranged in a cylindrical shape, one end surface of the hole position detection ring (19) is fixed on the second hole position detection rod (8), and the other end surface is provided with a groove matched with the second pipe hole (22).

7. The bend pipe position measuring tool according to claim 1, characterized in that: Four first fixing columns (13) are provided, one end of the first fixing column (13) is fixed on the bottom plate (1), and the other end is provided with a pin hole, and the mounting plate is fixed to the end of the first fixing column (13) by means of the pin.

8. The bend pipe position measuring tool according to claim 1, characterized in that: The hinge seat (16) is provided with a pin hole, and the hinge seat (16) is fixed on the mounting seat (15) via a pin.

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