Positioning clamp for special-shaped pipe fitting

Abstract

The utility model relates to the technical field of positioning clamps, and discloses a special-shaped pipe fitting positioning clamp which comprises a first clamping mechanism and a second clamping mechanism, the structure of the second clamping mechanism is the same as that of the first clamping mechanism, the second clamping mechanism is located on one side of the first clamping mechanism, and the first clamping mechanism is located on the other side of the second clamping mechanism. The first clamping mechanism comprises a double-groove frame, clamping frames, a clamping frame, an electric push rod and a driving air cylinder, the double-groove frame is located at the top end of the first clamping mechanism, and a double-shaft motor is fixedly installed in the middle of the double-groove frame. The two sets of clamping frames draw close to the middle to clamp the top side and the bottom side of the special-shaped pipe fitting, the soft rubber clamping plates are attached to the outer side of the special-shaped pipe fitting, meanwhile, the springs are extruded, controllable clamping force is provided through spring deformation to clamp and position the special-shaped pipe fitting, and special-shaped pipe fittings of different sizes can be conveniently positioned and clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning fixture technical field especially relates to a special-shaped pipe's positioning fixture. BACKGROUND

[0002] Special-shaped pipes / tubes refer to irregular, non-standardized tubular parts in cross section or axis shape, which are commonly used in the fields of aerospace, automobile, chemical industry, construction, etc. They are characterized by complex geometry (such as bending, variable diameter, multi-pass, flattening, etc.), and positioning fixtures usually select stable geometric features (such as end face, center hole, symmetry axis, etc.) on the pipe / tube as the main positioning surface.

[0003] A positioning fixture for drilling special-shaped pipes / tubes (publication number: CN219425707U) has at least the following disadvantages: the clamping seat of the device is internally installed with a second cylinder to adjust the distance between the moving clamping plate and the fixed clamping plate, but the fixed clamping plate is fixedly installed at the tail end position of the second cylinder, and the cylinder barrel of the second cylinder limits the minimum distance between the moving clamping plate and the fixed clamping plate, resulting in the device being unable to clamp and position special-shaped pipes / tubes with smaller diameters. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a positioning fixture for special-shaped pipes / tubes.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A positioning fixture for special-shaped pipes / tubes, comprising a first clamping mechanism and a second clamping mechanism, the structure of the second clamping mechanism being the same as that of the first clamping mechanism, the second clamping mechanism being located on one side of the first clamping mechanism, the first clamping mechanism comprising a double-groove frame, a clamping frame, a clamping frame, an electric push rod, and a driving cylinder, the double-groove frame being located at the top end of the first clamping mechanism, a double-shaft motor being fixedly installed in the middle of the double-groove frame, a bidirectional screw rod being rotatably connected in the groove on one side of the double-groove frame, the output shafts at both ends of the double-shaft motor being fixedly connected to one end of the bidirectional screw rod, the double-shaft motor being located in the middle of the bidirectional screw rod, two groups of clamping frames being slidably connected inside the grooves of the double-groove frame, one end of the clamping frame being threadedly connected to the bidirectional screw rod, the clamping frame comprising a spring, a limiting rod, and a soft rubber clamping plate, the ends of the springs being fixedly connected to one side of the clamping frame and the soft rubber clamping plate, respectively, the soft rubber clamping plate being located at the bottom of the clamping frame.

[0007] As a further scheme of the utility model, the spring is internally provided with a limiting rod, one end of the limiting rod penetrates through the clamping frame and is fixedly connected at the top of the soft rubber clamping plate, the clamping frame is located at the back side of the double-groove frame, the shaft end of the clamping block of the double-groove frame penetrates through and is rotatably connected in the middle of the clamping frame, a first motor is fixedly connected inside the outer side shell of the clamping frame.

[0008] As a further scheme of the utility model, the output end of the first motor is fixedly connected on the shaft end of the clamping block of the double-groove frame, the electric push rod is located at the bottom of the clamping frame, the telescopic end of the electric push rod is fixedly connected with an outer protective shell, a second motor is fixedly connected inside the outer protective shell, the bottom end of the clamping frame penetrates through the outer protective shell and is fixedly connected on the output end of the second motor.

[0009] As a further scheme of the utility model, the electric push rod is located at the top of the driving cylinder, a push plate is arranged at the bottom of the electric push rod, the telescopic end of the driving cylinder is fixedly connected inside the push plate, the electric push rod is fixedly connected at the top of the push plate, a workbench is arranged at the bottom of the electric push rod, the top of the workbench is slidably provided with a first clamping mechanism and a second clamping mechanism.

[0010] As a further scheme of the utility model, a plurality of sliding grooves are formed in the top of the workbench, a displacement device is arranged inside the sliding grooves, the displacement device comprises a screw rod, a positioning rod and a third motor, the output end of the third motor is fixedly connected on one end of the screw rod, the screw rod and the positioning rod are both located inside the sliding grooves, and both ends of the screw rod are rotatably connected inside the sliding grooves.

[0011] As a further scheme of the utility model, both ends of the positioning rod are fixedly connected inside the sliding grooves, the third motor is fixedly connected inside the case on one side of the workbench, a sliding block on one side of the bottom end of the driving cylinder is threadedly connected on the screw rod, and a sliding block on the other side of the bottom end of the driving cylinder is slidably connected on the positioning rod.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. If the size of the special-shaped pipe fitting is small, the staff starts the double-shaft motor in the double-groove frame, the output end of the double-shaft motor drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the two groups of clamping frames to move, the soft rubber clamping plate at the bottom of the two groups of clamping frames moves away from the middle of the double-groove box, the special-shaped pipe fitting is placed between the two groups of clamping frames, then the double-shaft motor is started to drive the bidirectional screw rod to rotate, so that the two groups of clamping frames move close to the middle to clamp the top and bottom sides of the special-shaped pipe fitting, the spring is extruded and deformed to shrink to one side of the clamping frame, the soft rubber clamping plate is driven to move and clamps the special-shaped pipe fitting on the outside, and the spring is compressed to the smallest length when clamping the pipe fitting, so that the special-shaped pipe fitting of different sizes can be positioned and clamped.

[0014] 2. The first motor on one side of the clamping frame is operated, the output end of the first motor drives the clamping block on one side of the double-groove frame to rotate, so that the double-groove frame drives the special-shaped pipe fitting to rotate, so that the special-shaped pipe fitting has a turnover function, and the special-shaped pipe fitting is convenient for multi-directional machining, because the shapes of the special-shaped pipe fittings are different, the staff starts the third motor in the outer protective shell, the third motor drives all the structures above the clamping frame to rotate, so that the clamping frame is adjusted in direction, so that the clamping mechanism is convenient for clamping and positioning the pipe fittings of different shapes. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the positioning clamp for the special-shaped pipe fitting;

[0016] Figure 2 It is a structure schematic view of the double-groove frame of the positioning clamp for the special-shaped pipe fitting;

[0017] Figure 3 It is a structure schematic view of the clamping frame of the positioning clamp for the special-shaped pipe fitting;

[0018] Figure 4 It is a structure schematic view of the workbench of the positioning clamp for the special-shaped pipe fitting.

[0019] In the figure: 1, first clamping mechanism; 2, double-groove frame; 201, double-shaft motor; 202, bidirectional screw rod; 3, clamping frame; 301, spring; 302, limiting rod; 303, soft rubber clamping plate; 4, clamping frame; 401, first motor; 5, electric push rod; 501, outer protective shell; 502, second motor; 6, driving cylinder; 601, push plate; 7, second clamping mechanism; 8, workbench; 801, sliding groove; 9, displacement device; 901, screw rod; 902, positioning rod; 903, third motor. DETAILED DESCRIPTION

[0020] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "another end" are the directions or position relations shown based on the drawings, which are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the utility model by indicating or implying that the devices or elements must have specific directions, be constructed and operated in specific directions, therefore, cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0023] Referring to Figures 1-4 A positioning clamp of special-shaped pipe fittings, including first clamping mechanism 1 and second clamping mechanism 7, the structure of second clamping mechanism 7 is same with first clamping mechanism 1, second clamping mechanism 7 is located in one side of first clamping mechanism 1, first clamping mechanism 1 includes double-slot frame 2, clamping frame 3, clamping frame 3, clamping frame 4, electric push rod 5 and drive cylinder 6, double-slot frame 2 is located in the top of first clamping mechanism 1, double-slot frame 2 middle fixed installation has double-shaft motor 201, double-slot frame 2 one side recess is rotatably connected with bidirectional screw rod 202, the both ends output shafts of double-shaft motor 201 are fixedly connected on bidirectional screw rod 202 one end respectively, double-shaft motor 201 is located in the middle of bidirectional screw rod 202, the recess of double-slot frame 2 is slidably connected with two groups of clamping frame 3, clamping frame 3 one end penetrates and is connected on bidirectional screw rod 202, clamping frame 3 includes spring 301, limit rod 302 and soft rubber clamp plate 303, the both ends of a plurality of spring 301 are fixedly connected on clamping frame 3 and one side of soft rubber clamp plate 303 respectively, soft rubber clamp plate 303 is located in the bottom of clamping frame 3.

[0024] In use, the two ends of the special-shaped pipe are clamped and positioned by the first clamping mechanism 1 and the second clamping mechanism 7, and the top and bottom sides of one end of the special-shaped pipe are clamped by the clamping frames 3 on the first clamping mechanism 1 and the second clamping mechanism 7, so as to avoid the shaking of the special-shaped pipe affecting the processing and production. The springs 301 on the two sets of clamping frames 3 support the soft rubber clamping plates 303 to adhere to each other. When the size of the special-shaped pipe is small, the staff starts the double-shaft motor 201 in the double-groove frame 2, the output end of the double-shaft motor 201 drives the bidirectional screw 202 to rotate, the bidirectional screw 202 drives the two sets of clamping frames 3 to move, and the soft rubber clamping plates 303 at the bottom of the two sets of clamping frames 3 move away from the middle of the double-groove box. The special-shaped pipe is placed between the two sets of clamping frames 3, and then the double-shaft motor 201 is started to drive the bidirectional screw 202 to rotate, so that the two sets of clamping frames 3 move towards the middle to clamp the top and bottom sides of the special-shaped pipe. The spring 301 is compressed and deformed to the side of the clamping frame 3, drives the soft rubber clamping plate 303 to move, and makes the soft rubber clamping plate 303 adhere to the outside of the special-shaped pipe for clamping. The spring 301 is compressed to the minimum length when clamping the pipe and will not deform again, so as to facilitate the positioning and clamping of special-shaped pipes of different sizes.

[0025] In the embodiment, the spring 301 is internally provided with a limiting rod 302, one end of the limiting rod 302 penetrates through the clamping frame 3 and is fixedly connected to the top of the soft rubber clamping plate 303. The clamping frame 4 is located at the back side of the double-groove frame 2, the clamping block shaft end of the double-groove frame 2 penetrates through and is rotationally connected to the middle of the clamping frame 4, and the first motor 401 is fixedly connected to the inside of the outer side shell of the clamping frame 4.

[0026] In use, when the soft rubber clamping plate 303 is driven to stretch and retract by the spring 301, the limiting rod 302 moves with the soft rubber clamping plate 303, so that the limiting rod 302 slides on the clamping frame 3. The limiting rod 302 limits the spring 301 to avoid deformation of the spring 301 during compression, displacement of the soft rubber clamping plate 303, deviation of the clamping position, and influence on the clamping and positioning of the special-shaped pipe. The first motor 401 on one side of the clamping frame 4 operates, the output end of the first motor 401 drives the clamping block on one side of the double-groove frame 2 to rotate, the double-groove frame 2 drives the special-shaped pipe to rotate, has a turnover function for the special-shaped pipe, and facilitates multi-directional processing of the special-shaped pipe.

[0027] In the embodiment, the output end of the first motor 401 is fixedly connected to the clamping block shaft end of the double-groove frame 2, the electric push rod 5 is located at the bottom of the clamping frame 4, the telescopic end of the electric push rod 5 is fixedly connected with the outer protective shell 501, the second motor 502 is fixedly connected inside the outer protective shell 501, and the bottom end of the clamping frame 4 penetrates through the outer protective shell 501 and is fixedly connected to the output end of the second motor 502.

[0028] In use, due to the different shapes of the special-shaped pipe fittings, the third motor 903 inside the outer shell 501 is started by the worker, the third motor 903 drives all the structures above the clamping frame 3 to rotate, which is convenient for the clamping frame 3 to adjust the orientation, thereby facilitating the clamping mechanism to clamp and position the pipe fittings of different shapes.

[0029] In the embodiment, the electric push rod 5 is located at the top of the driving cylinder 6, the bottom of the electric push rod 5 is provided with a push plate 601, the telescopic end of the driving cylinder 6 is fixedly connected to the inner side of the push plate 601, the electric push rod 5 is fixedly connected to the top of the push plate 601, and the bottom of the electric push rod 5 is provided with a workbench 8, and the top of the workbench 8 is slidably installed with the first clamping mechanism 1 and the second clamping mechanism 7.

[0030] In use, when the pipeline of the special-shaped pipe fitting is long, and the machining position is in the middle of the special-shaped pipe fitting, the telescopic end of the driving cylinder 6 pushes the push plate 601 to move outward, and the electric push rod 5 and the structures above it move on the workbench 8 along with the push plate 601, so that the first clamping mechanism 1 and the second clamping mechanism 7 have a larger operating space after the distance is expanded, which is convenient for machining the middle part of the special-shaped pipe fitting, and at the same time, the first clamping mechanism 1 and the second clamping mechanism 7 are convenient for clamping and positioning the two ends of the pipeline of the special-shaped pipe fitting.

[0031] In the embodiment, a plurality of sliding grooves 801 are formed in the top of the workbench 8, and a displacement device 9 is installed in the sliding grooves 801. The displacement device 9 comprises a screw rod 901, a positioning rod 902 and a third motor 903. The output end of the third motor 903 is fixedly connected to one end of the screw rod 901. The screw rod 901 and the positioning rod 902 are located in the plurality of sliding grooves 801. The two ends of the screw rod 901 are rotationally connected in the sliding grooves 801.

[0032] In use, the displacement device on the top of the workbench 8 operates, the output end of the third motor 903 drives the screw rod 901 to rotate, and the screw rod 901 drives the driving cylinder 6 to move in the sliding grooves 801, which is convenient for the first clamping mechanism 1 and the second clamping mechanism 7 to slide on the top of the workbench 8, and is conducive to the movement adjustment of the special-shaped pipe fitting according to the position of the machining equipment.

[0033] In the embodiment, the two ends of the positioning rod 902 are fixedly connected in the sliding grooves 801, the third motor 903 is fixedly connected in the cabinet on one side of the workbench 8, and the sliding block on one side of the bottom end of the driving cylinder 6 is threadedly connected to the screw rod 901, and the sliding block on the other side of the bottom end of the driving cylinder 6 is slidably connected to the positioning rod 902.

[0034] In use, two groups of displacement devices 9 are installed on the workbench 8, which respectively drive the first clamping mechanism 1 and the second clamping mechanism 7 to operate, which is convenient for the first clamping mechanism 1 and the second clamping mechanism 7 to respectively displace and adjust the orientation, thereby facilitating the clamping and positioning of the special-shaped pipe fitting according to the shape of different special-shaped pipe fittings or machining equipment.

[0035] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: the first clamping mechanism 1 and the second clamping mechanism 7 clamp and position the two ends of the special-shaped pipe, and the several clamping frames 3 on the first clamping mechanism 1 and the second clamping mechanism 7 clamp the top and bottom sides of one end of the special-shaped pipe, avoiding the shaking of the special-shaped pipe affecting the processing and production, the springs 301 on the two groups of clamping frames 3 support the mutual adhesion of the soft rubber clamping plates 303, if the size of the special-shaped pipe is small, the staff starts the double-shaft motor 201 inside the double-groove frame 2, the output end of the double-shaft motor 201 drives the rotation of the bidirectional screw 202, the bidirectional screw 202 drives the movement of the two groups of clamping frames 3, the soft rubber clamping plates 303 at the bottom of the two groups of clamping frames 3 move away from the middle of the double-groove box, the special-shaped pipe is placed between the two groups of clamping frames 3, and then the double-shaft motor 201 is started to drive the rotation of the bidirectional screw 202, so that the two groups of clamping frames 3 move closer to the middle to clamp the top and bottom sides of the special-shaped pipe, the spring 301 is extruded and deformed to the side of the clamping frame 3, drives the movement of the soft rubber clamping plate 303, and the soft rubber clamping plate 303 is clamped on the outside of the special-shaped pipe, the spring 301 is compressed to the minimum length when clamping the pipe and cannot be deformed again, so that the special-shaped pipes of different sizes can be positioned and clamped, the first motor 401 on one side of the clamping frame 4 operates, the output end of the first motor 401 drives the rotation of the clamping block on one side of the double-groove frame 2, so that the double-groove frame 2 drives the rotation of the special-shaped pipe, and the special-shaped pipe has a turnover function, which is convenient for multi-directional processing of the special-shaped pipe, because the shapes of the special-shaped pipes are different, the staff starts the second motor 502 inside the outer protective shell 501, the second motor 502 drives the rotation of all the structures above the clamping frame 4, which is convenient for the azimuth adjustment of the clamping frame 3, so as to facilitate the clamping mechanism to clamp and position the pipes of different shapes.

[0036] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A positioning jig for profiled pipes comprising a first clamping mechanism (1) and a second clamping mechanism (7), characterized in that, The structure of the second clamping mechanism (7) is the same as that of the first clamping mechanism (1), the second clamping mechanism (7) is located on one side of the first clamping mechanism (1), the first clamping mechanism (1) comprises a double-groove frame (2), a clamping frame (3), a clamping frame (4), an electric push rod (5) and a driving cylinder (6), the double-groove frame (2) is located at the top of the first clamping mechanism (1), a double-shaft motor (201) is fixedly installed at the middle of the double-groove frame (2), a bidirectional screw rod (202) is rotatably connected in the groove on one side of the double-groove frame (2), the output shafts at both ends of the double-shaft motor (201) are fixedly connected to one end of the bidirectional screw rod (202), the double-shaft motor (201) is located at the middle of the bidirectional screw rod (202), two groups of clamping frames (3) are slidably connected in the groove of the double-groove frame (2), one end of the clamping frame (3) is threadedly connected to the bidirectional screw rod (202), the clamping frame (3) comprises a spring (301), a limiting rod (302) and a soft rubber clamping plate (303), the ends of the plurality of springs (301) are fixedly connected to the clamping frame (3) and one side of the soft rubber clamping plate (303) respectively, and the soft rubber clamping plate (303) is located at the bottom of the clamping frame (3).

2. A positioning jig for a profiled pipe according to claim 1, characterized in that The spring (301) is internally provided with a limiting rod (302), one end of the limiting rod (302) penetrates the clamping frame (3) and is fixedly connected to the top of the soft rubber clamping plate (303), the clamping frame (4) is located at the back side of the double-groove frame (2), the shaft end of the clamping block of the double-groove frame (2) is rotatably connected to the middle of the clamping frame (4), and the first motor (401) is fixedly connected to the inside of the outer casing of the clamping frame (4).

3. A positioning jig for a profiled tube according to claim 2, characterized in that The output end of the first motor (401) is fixedly connected to the shaft end of the clamping block of the double-groove frame (2), the electric push rod (5) is located at the bottom of the clamping frame (4), the telescopic end of the electric push rod (5) is fixedly connected with an outer protective shell (501), the second motor (502) is fixedly connected in the outer protective shell (501), and the bottom end of the clamping frame (4) penetrates the outer protective shell (501) and is fixedly connected to the output end of the second motor (502).

4. A positioning jig for a profiled tube according to claim 3, characterized in that The electric push rod (5) is located at the top of the driving cylinder (6), the bottom of the electric push rod (5) is provided with a push plate (601), the telescopic end of the driving cylinder (6) is fixedly connected to the inner side of the push plate (601), the electric push rod (5) is fixedly connected to the top of the push plate (601), and the bottom of the electric push rod (5) is provided with a workbench (8).

5. A positioning jig for a profiled tube according to claim 4, characterized in that The workbench (8) top is provided with a plurality of chute (801), the chute (801) is internally mounted with displacement device (9), the displacement device (9) includes screw rod (901), positioning rod (902) and third motor (903), the output end of third motor (903) is fixedly connected on one end of screw rod (901), the screw rod (901) and the positioning rod (902) are located in a plurality of chute (801) inside, the both ends of screw rod (901) are rotatably connected in the chute (801) inside.

6. A positioning jig for a profiled tube according to claim 5, characterized in that The both ends of positioning rod (902) are fixedly connected in the chute (801) inside, the third motor (903) is fixedly connected in the cabinet inside on one side of workbench (8), the bottom end one side sliding block of drive cylinder (6) is threadedly connected on the screw rod (901), the bottom end other side sliding block of drive cylinder (6) is through slidingly connected on the positioning rod (902).

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