Multi-specification flange positioning tool

Abstract

The utility model discloses a multi-specification flange positioning tool which comprises a three-clamping-jaw air cylinder, a bottom plate, a top plate, a movable positioning pin assembly and clamping jaws. A quick-change disc is installed on the bottom face of the bottom plate, a top plate is installed on the top face of the bottom plate through a connecting rod, a three-clamping-jaw air cylinder is installed between the bottom plate and the top plate, and three clamping jaws are fixed to an air cylinder rod of the three-clamping-jaw air cylinder through groove-shaped holes in the top plate. Each clamping jaw is provided with a plurality of first pin holes used for containing clamping pins in the sliding direction of the clamping jaw, and the peripheral face of a flange is clamped based on the clamping pins on the three clamping jaws. The movable positioning pin assembly comprises a first guide rail, a guide rail mounting plate, a pin sleeve and a taper pin, the first guide rail is mounted on the top plate in the radial direction of the top plate, the guide rail mounting plate is slidably arranged on the first guide rail, the pin sleeve is mounted on the guide rail mounting plate, the taper pin is arranged in the pin sleeve, a spring is arranged between the taper pin and the pin sleeve, and the taper pin penetrates into a flange hole when the flange is positioned. The flange positioning and clamping device can be compatible with the positioning and clamping functions of flanges of various specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, and in particular to a multi-specification flange positioning tool, which is applied to the flexible production and manufacturing of complex pipelines in the aerospace field, including the welding, assembly and detection of complex pipeline products in the aerospace field. Background Art

[0002] Among the parts and components in the aerospace field, pipelines occupy a large part. The ends of the pipelines are partly flexible flanges and partly traditional flanges. These flanges are the installation constraints of medium and large diameter catheters on the rocket body. They are extremely diverse and have different spatial shapes. The flexible catheter assembly system is used in combination with the end flange positioning tooling to characterize the installation constraints of medium and large diameter catheters on the rocket body and reproduce the actual installation space of the catheter on the rocket body.

[0003] The traditional manufacturing process of medium and large diameter catheters relies solely on catheter contouring tooling to complete manufacturing, without flange positioning tooling. This results in heavy workload, poor precision, and low efficiency, which seriously affects the overall task progress. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a multi-specification flange positioning tool for the welding assembly and inspection of medium and large diameter conduits. The utility model adopts a compatibility design concept and realizes the flange positioning and clamping functions compatible with various specifications through various movable parts and quick-change parts on the tool and in combination with a three-jaw cylinder. Feedback calibration of the center position of the tool can be achieved through target points arranged at various positions and angles on the tool. In the whole process, the pipe end flange is first manually placed on the tool for positioning and the cylinder is manually operated to clamp it. It is easy to operate and has the advantages of high efficiency and high yield.

[0005] The utility model discloses a multi-specification flange positioning tool, comprising: a quick-change plate, a three-jaw cylinder, a bottom plate, a top plate, a movable positioning pin assembly and a clamping claw;

[0006] The quick-change plate is installed on the bottom surface of the bottom plate, and a top plate parallel to the bottom plate is installed on the top surface of the bottom plate through a connecting rod. A three-jaw cylinder is installed between the bottom plate and the top plate, and the three-jaw is fixed on the cylinder rod of the three-jaw cylinder through the slot-shaped hole on the top plate; each of the clamping jaws is provided with a plurality of first pin holes for placing clamping pins along the sliding direction of the clamping jaws, and the outer peripheral surface of the flange is clamped based on the clamping pins on the three-jaw;

[0007] The movable positioning pin assembly includes a first guide rail, a guide rail mounting plate, a pin sleeve and a cone pin. The first guide rail is installed on the top plate along the radial direction of the top plate. The guide rail mounting plate is slidably mounted on the first guide rail. The pin sleeve is mounted on the guide rail mounting plate. The cone pin is placed in the pin sleeve and a spring is provided between the cone pin and the pin sleeve. The cone pin penetrates into the flange hole when the flange is positioned.

[0008] As a further improvement of the utility model, the tapered pin extends out of the pin sleeve under the action of the spring, and the taper of the tapered pin is matched to adapt to different flange hole diameters.

[0009] As a further improvement of the utility model, it also includes: two auxiliary clamping assemblies mounted on the top plate, the movable positioning pin assembly and the two auxiliary clamping assemblies are arranged between the two clamping jaws in sequence, that is, one auxiliary clamping assembly is arranged between the first clamping jaw and the second clamping jaw, the other auxiliary clamping assembly is arranged between the second clamping jaw and the third clamping jaw, and the movable positioning pin assembly is arranged between the third clamping jaw and the first clamping jaw;

[0010] The auxiliary clamping assembly comprises a second guide rail and a toggle clamp, wherein the second guide rail is mounted on the top plate in a radial direction of the top plate, and the toggle clamp is slidably disposed on the second guide rail.

[0011] As a further improvement of the utility model, it also includes: a quick-change small tooling;

[0012] The quick-change small tooling is provided with a bearing and a plurality of second pin holes, and a clamping pin or a positioning pin is inserted into the first pin hole and the second pin hole to install the quick-change small tooling on the clamping jaw;

[0013] When the quick-change small tooling is installed on the clamping jaw, the bearing on the quick-change small tooling acts on the outer peripheral surface of the flange to be clamped.

[0014] As a further improvement of the present invention, the bearing is a plastic bearing.

[0015] As a further improvement of the present invention, an insulating pad is provided between the quick-change disc and the bottom plate.

[0016] As a further improvement of the utility model, a plurality of reflective sheet fixing blocks are arranged in a ring shape on the top plate.

[0017] As a further improvement of the present invention, a plurality of target points are provided on the bottom plate, the top plate and / or the reflective sheet fixing block.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Considering the great differences in the incoming conduit materials in the actual production process, the shapes are different, and the flange apertures are also different; the flange positioning tooling of the utility model adopts a quick-change and easy-to-disassemble structure with high flexibility; it is convenient for manual rapid operation and has adapted to the clamping requirements of flanges of different sizes and shapes; and the positioning pin used to locate the flange aperture also adopts a spring plus taper design, which can adapt to various flange apertures.

[0020] 2. Medium and large diameter conduits are affected by the installation process requirements and have higher requirements on the flange end faces and round surfaces. Therefore, the flange positioning tooling of the utility model can further prevent damage to various surfaces of the flange while ensuring accuracy.

[0021] 3. During actual use, a huge current will be generated at the end of the tooling due to process requirements, which may cause irreversible damage to the equipment. For this reason, the flange positioning tooling of the utility model is designed with a high stability insulation design to completely isolate the large current from damaging the equipment.

[0022] 4. The flange positioning tooling of the utility model arranges target points at various positions to meet the real-time tracking and feedback requirements under different angles.

[0023] 5. Considering the possibility of increasing flange specifications in the future, the clamping jaws of the utility model can be later modified and upgraded according to the existing position. For example, under the premise that the existing structure remains unchanged, the clamping jaws can be lengthened and more pin holes can be provided to adapt to flanges of more sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the multi-specification flange positioning tool disclosed in the utility model;

[0025] Figure 2 It is another structural schematic diagram of the multi-specification flange positioning tooling disclosed in the utility model;

[0026] Figure 3 It is a schematic diagram of a movable positioning pin assembly of a multi-specification flange positioning tool disclosed in the utility model;

[0027] Figure 4 It is a schematic diagram of the auxiliary clamping assembly of the multi-specification flange positioning tooling disclosed in the utility model;

[0028] Figure 5 It is a schematic diagram of a quick-change small tooling for multi-specification flange positioning tooling disclosed by the utility model.

[0029] In the figure:

[0030] 1. Quick-change plate; 2. Three-jaw cylinder; 3. Bottom plate; 4. Connecting rod; 5. Top plate; 6. Movable positioning pin assembly; 601. First guide rail; 602. Guide rail mounting plate; 603. Pin sleeve; 604. Taper pin; 7. Clamping jaw; 701. First pin hole; 8. Quick-change small tooling; 801. Second pin hole; 802. Bearing; 9. Auxiliary clamping assembly; 901. Second guide rail; 902. Adapter plate; 903. Elbow clamp; 10. Reflector fixing block; 11. Insulating pad; 12. Target point; 13. Clamping pin. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0033] like Figures 1 to 5 As shown, the utility model provides a multi-specification flange positioning tool, including: a quick-change plate 1, a three-jaw cylinder 2, a bottom plate 3, a connecting rod 4, a top plate 5, a movable positioning pin assembly 6, a clamping jaw 7, a quick-change small tool 8, an auxiliary clamping assembly 9, a reflector fixing block 10, an insulating pad 11, a target point 12 and a clamping pin 13; wherein,

[0034] The bottom surface of the bottom plate 3 of the utility model is installed with a quick-change disk 1, and the bottom plate 3 is preferably connected to the quick-change disk 1 through threads and positioning pins; an insulating pad 11 is provided between the quick-change disk 1 and the bottom plate 3, such as Figure 2 As shown; the setting of the insulating pad 11 can completely isolate the large current from damaging the equipment.

[0035] The top surface of the bottom plate 3 of the utility model is installed with a top plate 5 parallel to the bottom plate 3 through a plurality of vertical connecting rods. The three-claw cylinder 2 is installed on the bottom plate 3 and is located between the bottom plate 3 and the top plate 5. The three-claw 7 is fixed on the cylinder rod of the three-claw cylinder 2 through the slotted holes on the top plate 5. Figure 1As shown; the clamping jaw 7 is a long strip plate and is arranged along the radial direction of the top plate 5, and the radial direction of the top plate is the sliding direction of the clamping jaw 7 driven by the three-jaw cylinder 2; each clamping jaw 7 is provided with a plurality of first pin holes 701 for placing the clamping pins 13 along the sliding direction (length direction) of the clamping jaw, and the clamping of the outer peripheral surface of the flange is achieved based on the clamping pins 13 on the three-jaw clamp; the clamping pins 13 are placed in different first pin holes 701 to adapt to flanges of different specifications. At the same time, considering the possibility of increasing the flange specifications in the future, the clamping jaw of the utility model can be later modified and upgraded according to the existing position, such as lengthening the clamping jaw and setting more pin holes on the premise that the existing structure remains unchanged, so as to adapt to flanges of more sizes.

[0036] The utility model can also choose to install the clamping jaw 7 as follows Figure 1 , 5 The quick-change small fixture 8 shown is in the shape of a long strip, and is provided with a bearing 802 and a plurality of second pin holes 801, and the bearing 802 is preferably a plastic bearing. The quick-change small fixture 8 is installed on the clamping jaw 7 by inserting a clamping pin or a positioning pin into the first pin hole 701 and the second pin hole 801; when the quick-change small fixture 8 is installed on the clamping jaw 7, the plastic bearing on the quick-change small fixture 8 acts on the outer peripheral surface of the flange to be clamped. Among them, the second pin hole 801 can be replaced on the clamping jaw 7 according to different clamping requirements, and the plastic bearing 802 can be used to prevent damage to the pipe end flange.

[0037] like Figure 3 As shown, the movable positioning pin assembly 6 of the utility model includes a first guide rail 601, a guide rail mounting plate 603, a pin sleeve 603 and a cone pin 604. The two first guide rails 601 are installed on the top plate 5 along the radial direction of the top plate. The guide rail mounting plate 602 is fixed on the slider, the slider is slidably arranged on the first guide rail 601, the pin sleeve 603 is installed on the guide rail mounting plate 602, the cone pin 604 is placed in the pin sleeve 603 and a spring is provided between the cone pin 604 and the pin sleeve 603. The cone pin 604 is inserted into the flange hole when the flange is positioned. In this way, the cone pin 604 can reciprocate along the first guide rail 601 to meet the positioning requirements of different specifications. In the initial state, the cone pin 604 extends out of the pin sleeve 603 under the action of the spring. When the cone pin 604 is pressed downward or a downward force is applied to the cone pin 604, the cone pin 604 can overcome the elastic force of the spring and move downward; when the force is released, the cone pin 604 returns to the initial state under the resetting action of the spring; based on this, based on the taper of the spring and the cone pin 604, it can adapt to various flange apertures; that is, if the flange aperture is small, the smaller outer circumference of the head end of the cone pin 604 is inserted into the flange hole; if the flange aperture is large, the larger outer circumference of the head end of the cone pin 604 is inserted into the flange hole.

[0038] The two auxiliary clamping components 9 of the utility model are installed on the top plate 5, and the movable positioning pin component 6 and the two auxiliary clamping components 9 are arranged between the two clamping jaws in sequence, that is, one auxiliary clamping component is arranged between the first clamping jaw and the second clamping jaw, the other auxiliary clamping component is arranged between the second clamping jaw and the third clamping jaw, and the movable positioning pin component is arranged between the third clamping jaw and the first clamping jaw. Figure 4 As shown, the auxiliary clamping assembly 9 of the utility model includes a second guide rail 901, an adapter plate 902 and a toggle clamp 903. The second guide rail 901 is installed on the adapter plate 902, and the adapter plate 902 is installed on the top plate 5. The second guide rail 901 is arranged radially along the top plate, and the toggle clamp 903 is installed on a slider, and the slider is slidably arranged on the second guide rail 901. The toggle clamp 903 is locked after sliding to a preset position to achieve auxiliary clamping of the flange, and the slidable movement of the toggle clamp 903 can meet the clamping requirements of flanges with different diameters.

[0039] A plurality of reflective sheet fixing blocks 10 are arranged in a ring on the top plate 5 of the utility model, and a plurality of target points 12 are arranged on the bottom plate 3, the top plate 5 and / or the reflective sheet fixing block 10; feedback calibration of the center position of the tooling can be achieved through the target points arranged at various positions and angles on the tooling, which can meet the real-time tracking and feedback requirements of track under different angles.

[0040] The method for using the multi-specification flange positioning tool of the utility model includes:

[0041] S1. For fixed flanges, there is an angle problem, so when placing the flange, the movable positioning pin assembly 6 should be moved to allow the cone pin 604 to pass into the specified flange hole; for movable flanges, there is no angle restriction, and any flange hole can be selected to match the cone pin 604.

[0042] S2. The operator presses the opening button of the clamp 7 on the equipment, and the clamp 7 opens; then the flange end of the conduit is placed in the center of the three jaws of the tooling. The closing button of the clamp 7 is pressed, and the clamp 7 clamps the flange of the pipe end.

[0043] S3. After the clamping jaws 7 are clamped, the auxiliary clamping assembly 9 is moved to a suitable position to press the flange, and the catheter is fixed.

[0044] The advantages of the utility model are:

[0045] The flange positioning tool of the utility model adopts a quick-change and easy-to-disassemble structure with high flexibility. It is convenient for manual rapid operation and can adapt to the clamping requirements of flanges of different sizes and shapes. The positioning pin used to locate the flange aperture also adopts a spring plus taper design, which can adapt to various flange apertures.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to 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 multi-specification flange positioning tool, characterized in that: include: Quick-change plate, three-jaw cylinder, bottom plate, top plate, movable locating pin assembly and clamping jaws; The quick-change plate is installed on the bottom surface of the bottom plate, and a top plate parallel to the bottom plate is installed on the top surface of the bottom plate through a connecting rod. A three-jaw cylinder is installed between the bottom plate and the top plate, and the three-jaw is fixed on the cylinder rod of the three-jaw cylinder through the slot-shaped hole on the top plate; each of the clamping jaws is provided with a plurality of first pin holes for placing clamping pins along the sliding direction of the clamping jaws, and the outer peripheral surface of the flange is clamped based on the clamping pins on the three-jaw; The movable positioning pin assembly includes a first guide rail, a guide rail mounting plate, a pin sleeve and a cone pin. The first guide rail is installed on the top plate along the radial direction of the top plate. The guide rail mounting plate is slidably mounted on the first guide rail. The pin sleeve is mounted on the guide rail mounting plate. The cone pin is placed in the pin sleeve and a spring is provided between the cone pin and the pin sleeve. The cone pin penetrates into the flange hole when the flange is positioned.

2. The multi-specification flange positioning tool as claimed in claim 1, characterized in that: The cone pin extends out of the pin sleeve under the action of the spring, and the taper of the cone pin is matched to adapt to different flange hole diameters.

3. The multi-specification flange positioning tool as claimed in claim 1, characterized in that: Also includes: Two auxiliary clamping assemblies are installed on the top plate, and the movable positioning pin assembly and the two auxiliary clamping assemblies are arranged in sequence between the clamping jaws; The auxiliary clamping assembly comprises a second guide rail and a toggle clamp, wherein the second guide rail is mounted on the top plate along a radial direction of the top plate, and the toggle clamp is slidably disposed on the second guide rail.

4. The multi-specification flange positioning tool as claimed in claim 1, characterized in that: Also includes: Quick-change small tooling; The quick-change small tooling is provided with a bearing and a plurality of second pin holes, and a clamping pin or a positioning pin is inserted into the first pin hole and the second pin hole to install the quick-change small tooling on the clamping jaw; When the quick-change small tooling is installed on the clamping jaw, the bearing on the quick-change small tooling acts on the outer peripheral surface of the flange to be clamped.

5. The multi-specification flange positioning tool as claimed in claim 4, characterized in that: The bearing is a plastic bearing.

6. The multi-specification flange positioning tool as claimed in claim 1, characterized in that: An insulating pad is provided between the quick-change disc and the bottom plate.

7. The multi-specification flange positioning tool as claimed in claim 1, characterized in that: A plurality of reflective sheet fixing blocks are arranged in a ring shape on the top plate.

8. The multi-specification flange positioning tool as claimed in claim 7, characterized in that: A plurality of target points are arranged on the bottom plate, the top plate and / or the reflective sheet fixing block.

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