Pipe fitting clamping and positioning mechanism

Abstract

The utility model relates to the technical field of pipe fitting thread machining accessory devices, in particular to a pipe fitting clamping and positioning mechanism which can effectively solve the problem that centering of a clamped pipe fitting and a threading machine head is not accurate and can clamp and fix pipe fittings of different specifications and sizes, so that the working efficiency and the effect of machining the pipe fittings are improved, and the pipe fitting clamping and positioning mechanism is suitable for popularization and application. Therefore, the practicability is enhanced; comprising a base, four side plates, a left support, a right support and an adjusting mechanism, the outer side of the base is evenly connected with one ends of the four side plates, the bottoms of the left support and the right support are slidably connected with the top of the base through the adjusting mechanism, and the adjusting mechanism comprises a mounting plate, a hydraulic cylinder, a connecting block, two positioning blocks, two connecting rods, a rotating shaft, a clamping jaw assembly and a guide assembly. The bottom of the mounting plate is connected with the top of the hydraulic cylinder, the right output end of the hydraulic cylinder is connected with the left end of the connecting block, two sliding holes are formed in the top of the base, and the two positioning blocks are slidably connected with the sliding holes of the base respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe thread processing auxiliary devices, and in particular to a pipe clamping and positioning mechanism. Background Technology

[0002] As is well known, a threading machine is a tool used to process external threads on pipe fittings. There are manual and electric threading machines, and they generally have a pipe fitting clamping device that clamps and fixes the pipe fitting before feeding it into the threading head for processing. In current technology, when threading pipe fittings of different diameters, it is necessary to manually adjust the clamping position of the pipe fitting and align it with the threading head. This can lead to skewed threading and relatively low work efficiency.

[0003] For example, the "clamping and positioning mechanism for pipe threading machine" disclosed in Chinese patent literature, with publication number CN218426031U, includes a movable bracket and a fan. A storage box is fixedly connected to the bottom of the movable bracket. A fan is installed on the right side of the inner cavity of the storage box. A bottom cover is snapped onto the left side of the inner cavity of the storage box. A filter plate is fixedly connected to the inner wall of the storage box to the left of the fan. A bottom limiting plate is fixedly connected to the right side of the movable bracket. The clamping and positioning mechanism of this pipe threading machine works by rotating a threaded rod inside the bottom limiting plate. When the device needs to adjust the placement height of the pipe fitting, the gear disc outside the threaded rod is first rotated, causing the rotation of the threaded rod to drive the sleeve frame to lift and adjust the bottom support frame. When the bottom support frame reaches the specified height, the pipe fitting is placed at the bottom of the bottom support frame, and then the hydraulic rod is activated to drive the clamping plate to clamp the pipe fitting. However, it was found in use that manually adjusting the bottom support frame is inaccurate, the threading process may be skewed, and the efficiency is very low. In addition, the applicable pipe fitting size range is small, which reduces the convenience of the device and results in poor practicality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pipe clamping and positioning mechanism that can effectively solve the problem of inaccurate alignment between the clamping pipe fitting and the threading machine head, and can clamp and fix pipe fittings of different specifications and sizes, thereby improving the work efficiency and effect of pipe fitting processing, and thus enhancing its practicality.

[0005] This utility model discloses a pipe clamping and positioning mechanism, comprising a base, four sets of side plates, a left support, a right support, and an adjustment mechanism. The outer side of the base is uniformly connected to one end of the four sets of side plates. The bottom of the left and right supports is slidably connected to the top of the base through the adjustment mechanism. The adjustment mechanism includes a mounting plate, a hydraulic cylinder, a connecting block, two sets of positioning blocks, two sets of connecting rods, a rotating shaft, a gripper assembly, and a guide assembly. The bottom right end of one set of side plates is connected to the left end of the mounting plate. The bottom of the mounting plate is connected to the top of the hydraulic cylinder. The right output end of the hydraulic cylinder is connected to the left end of the connecting block. The top of the base is provided with two sets of sliding holes. The two sets of positioning blocks are slidably connected to one set of base sliding holes respectively. The bottom of the left and right supports are respectively connected to the top of one set of positioning blocks. The bottom of the two sets of positioning blocks are respectively hinged to one end of the top of one set of connecting rods. The bottom ends of the rotating shaft are respectively hinged to the other end of the top of one set of connecting rods. The bottom of the left and right supports are respectively connected to the top of one set of positioning blocks. The left and right supports are slidably attached to the top of the base through the guide assembly. The right end of the left support and the left end of the right support are respectively provided with gripper assemblies.

[0006] Preferably, the guide assembly includes four sets of bearings and two sets of guide shafts. The two sets of guide shafts are connected to one end of a set of side plates at both ends, and the two sets of guide shafts are placed in parallel. The left support and the right support are each provided with two sets of reserved holes, and each of the two sets of left support reserved holes and the two sets of right support reserved holes is provided with a set of bearings. The inner sides of the four sets of bearings are slidably fitted to one end of the outer side of a set of guide shafts.

[0007] Preferably, the gripper assembly includes multiple sets of left gripping fingers, multiple sets of right gripping fingers, a left fixing plate, a right fixing plate, and a buffer assembly. The right end of the left support is connected to the left end of the left fixing plate, and multiple sets of grooves are evenly arranged on the right end of the left support. Multiple sets of reserved holes are provided through the left fixing plate, and the multiple sets of reserved holes on the left fixing plate are respectively aligned with a set of grooves on the left support. The outer sides of the multiple sets of left gripping fingers are slidably fitted with the reserved holes on the left fixing plate and the grooves on the left support, and the left end of the groove on the left support is connected to the left end of the left gripping finger through the buffer assembly. The left end of the right support is connected to the left end of the right fixing plate, and multiple sets of grooves are evenly arranged on the left end of the right support. Multiple sets of reserved holes are provided through the right fixing plate, and the multiple sets of reserved holes on the right fixing plate are respectively aligned with a set of grooves on the right support. The outer sides of the multiple sets of right gripping fingers are slidably fitted with the reserved holes on the right fixing plate and the grooves on the right support, and the right end of the groove on the right support is connected to the left end of the left gripping finger through the buffer assembly.

[0008] Preferably, the buffer assembly includes springs, with a set of springs respectively provided on the left outer left end of multiple sets of left gripper fingers and the right outer right end of multiple sets of right gripper fingers, and the multiple sets of springs are slidably fitted with the corresponding left support groove or right support groove.

[0009] Preferably, it also includes a protective plate, with the top of two sets of side plates located on the front and rear sides of the base respectively connected to one end of the bottom of a set of protective plates.

[0010] Preferably, the right ends of the multiple sets of left-hand gripping fingers and the left ends of the multiple sets of right-hand gripping fingers are respectively provided with concave and convex surfaces.

[0011] Compared with existing technologies, the advantages of this pipe clamping and positioning mechanism are as follows: The pipe is placed between the left and right support gripper assemblies, and then the hydraulic cylinder is activated. The output end of the hydraulic cylinder drives the connecting block to extend and retract, which in turn drives the bottom positioning block of the right support to slide. Simultaneously, through the hinge of the connecting rod and the rotating shaft, the bottom positioning block of the left support drives the left support to move. Furthermore, the guide assembly enables the right and left supports to move synchronously towards each other until the gripper assembly and one end of the pipe are tightly pressed together, thus completing the clamping and fixing of the pipe. Subsequent processing can then begin. This effectively solves the problem of inaccurate alignment between the clamped pipe and the threading machine head, and it can clamp and fix pipes of different sizes, thereby improving the efficiency and effectiveness of pipe processing and enhancing its practicality. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a three-dimensional schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a schematic cross-sectional view of the formal structure of this utility model;

[0015] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the gripper assembly of this utility model;

[0016] The following are labels in the attached diagram: 1. Base; 2. Side plate; 3. Left support; 4. Right support; 5. Mounting plate; 6. Hydraulic cylinder; 7. Connecting block; 8. Positioning block; 9. Connecting rod; 10. Rotating shaft; 11. Bearing; 12. Guide shaft; 13. Left clamping finger; 14. Right clamping finger; 15. Left fixing plate; 16. Right fixing plate; 17. Spring; 18. Protective plate. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] like Figures 1 to 4As shown, this utility model discloses a pipe clamping and positioning mechanism, including a base 1, four sets of side plates 2, a left support 3, a right support 4, and an adjustment mechanism. The outer side of the base 1 is evenly connected to one end of the four sets of side plates 2. The bottoms of the left support 3 and the right support 4 are slidably connected to the top of the base 1 through the adjustment mechanism. The adjustment mechanism includes a mounting plate 5, a hydraulic cylinder 6, a connecting block 7, two sets of positioning blocks 8, two sets of connecting rods 9, a rotating shaft 10, a gripper assembly, and a guide assembly. The bottom right end of one set of side plates 2 is connected to the left end of the mounting plate 5. The bottom of the mounting plate 5 is connected to the top of the hydraulic cylinder 6. The right output end of the hydraulic cylinder 6 is connected to the left end of the connecting block 7. Two sets of positioning blocks 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 10, 11, 12, 19, 10, 19 ... The sliding holes are formed by two sets of positioning blocks 8, which are slidably connected to a set of base 1. The bottoms of the left support 3 and the right support 4 are connected to the tops of a set of positioning blocks 8, and the bottoms of the two sets of positioning blocks 8 are hinged to one end of the top of a set of connecting rods 9. The bottom ends of the rotating shaft 10 are hinged to the other end of the top of a set of connecting rods 9. The bottoms of the left support 3 and the right support 4 are connected to the tops of a set of positioning blocks 8, and the left support 3 and the right support 4 are slidably attached to the top of the base 1 through guide components. The right end of the left support 3 and the left end of the right support 4 are respectively provided with gripper assemblies. The pipe is placed between the gripper assemblies of the left and right supports, and then the hydraulic cylinder is started. The hydraulic cylinder output end drives the connecting block to extend and retract, which in turn drives the right support bottom positioning block to slide. Simultaneously, through the hinge of the connecting rod and the rotating shaft, the left support bottom positioning block drives the left support to move. The guide assembly enables the right and left supports to move synchronously towards each other until the gripper assembly and one end of the pipe are tightly attached, completing the clamping and fixing of the pipe. Then, subsequent processing can begin. This effectively solves the problem of inaccurate alignment between the clamped pipe and the threading machine head, and can clamp and fix pipes of different specifications and sizes, thereby improving the efficiency and effect of pipe processing and enhancing its practicality.

[0019] As a preferred embodiment of the above, the guide assembly includes four sets of bearings 11 and two sets of guide shafts 12. The two ends of the two sets of guide shafts 12 are respectively connected to one end of a set of side plates 2, and the two sets of guide shafts 12 are placed in parallel. The left support 3 and the right support 4 are respectively provided with two sets of reserved holes, and the two sets of reserved holes of the left support 3 and the two sets of reserved holes of the right support 4 are respectively provided with a set of bearings 11. The inner sides of the four sets of bearings 11 are slidably fitted to one end of the outer side of a set of guide shafts 12. The bearings and guide shafts in the guide assembly ensure that the left support and the right support slide smoothly along the predetermined path, thereby realizing the synchronous movement of the left support and the right support in opposite directions, thus enhancing practicality.

[0020] As a preferred embodiment of the above, the gripper assembly includes multiple sets of left gripping fingers 13, multiple sets of right gripping fingers 14, a left fixing plate 15, a right fixing plate 16, and a buffer assembly. The right end of the left support 3 is connected to the left end of the left fixing plate 15, and multiple sets of grooves are evenly arranged on the right end of the left support 3. Multiple sets of reserved holes are provided through the left fixing plate 15, and the multiple sets of reserved holes of the left fixing plate 15 are respectively aligned with a set of grooves of the left support 3. The outer sides of the multiple sets of left gripping fingers 13 are slidably fitted with the reserved holes of the left fixing plate 15 and the grooves of the left support 3, and the left end of the groove of the left support 3 is connected to the left end of the left gripping fingers 13 through the buffer assembly. The left end of the right support 4 is connected to the left end of the right fixing plate 16, and multiple sets of grooves are evenly arranged on the left end of the right support 4. Multiple sets of reserved holes are provided through the right fixing plate 16, and the multiple sets of reserved holes of the right fixing plate 16 are respectively aligned with a set of grooves of the right support 4. The outer sides of multiple sets of right clamping fingers 14 are respectively slidably fitted with the reserved holes of the right fixing plate 16 and the grooves of the right support 4. The right end of the groove of the right support 4 is connected to the left end of the left clamping finger 13 through a buffer component. It can automatically adjust the clamping force according to the pipe fittings of different shapes and sizes, ensuring the clamping effect while protecting the surface of the pipe fittings from damage, thus enhancing practicality.

[0021] As a preferred embodiment of the above, the buffer assembly includes a spring 17. A set of springs 17 is provided on the outer left end of multiple sets of left clamping fingers 13 and the outer right end of multiple sets of right clamping fingers 14, and the multiple sets of springs 17 are slidably fitted with the corresponding left support 3 groove or right support 4 groove; it absorbs the impact force generated during the clamping process, prevents damage to the pipe due to excessive clamping, and improves the durability of the clamps, thus enhancing practicality.

[0022] As a preferred embodiment of the above, a protective plate 18 is also included, with the top of the two sets of side plates 2 located on the front and rear sides of the base 1 respectively connected to one end of the bottom of a protective plate 18; this prevents operators or sleeves from accidentally coming into contact with moving parts, ensuring the safety of the working environment and thus enhancing practicality.

[0023] As a preferred embodiment, the right ends of the multiple sets of left clamping fingers 13 and the left ends of the multiple sets of right clamping fingers 14 are respectively provided with concave and convex surfaces; this increases the friction between the clamping fingers and the pipe fitting, preventing the pipe fitting from sliding during the clamping process, thus enhancing practicality.

[0024] This utility model discloses a pipe clamping and positioning mechanism. During operation, the pipe is placed between the left and right support gripper assemblies, and then the hydraulic cylinder is activated. The output end of the hydraulic cylinder drives the connecting block to extend and retract, which in turn drives the right support bottom positioning block to slide. Simultaneously, through a connecting rod and a hinged shaft, the left support bottom positioning block drives the left support to move. Furthermore, through a guide shaft and bearings, the right and left supports move synchronously towards each other until one end of the left and right gripper fingers is tightly pressed against one end of the pipe, thus completing the clamping and fixing of the pipe. Subsequent processing can then begin. Before completing the above actions, the pipe is first moved to the position required by the user.

[0025] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this article are for illustrative purposes only.

[0026] In this utility model, the terms "first," "second," and "third" do not represent a specific quantity or order, but are merely used to distinguish names.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pipe clamping and positioning mechanism, comprising a base (1), four sets of side plates (2), a left support (3), a right support (4), and an adjusting mechanism, wherein the outer side of the base (1) is uniformly connected to one end of the four sets of side plates (2), and the bottoms of the left support (3) and the right support (4) are slidably connected to the top of the base (1) through the adjusting mechanism, characterized in that, The adjustment mechanism includes a mounting plate (5), a hydraulic cylinder (6), a connecting block (7), two sets of positioning blocks (8), two sets of connecting rods (9), a rotating shaft (10), a gripper assembly, and a guide assembly. The bottom right end of a set of side plates (2) is connected to the left end of the mounting plate (5), the bottom of the mounting plate (5) is connected to the top of the hydraulic cylinder (6), the right output end of the hydraulic cylinder (6) is connected to the left end of the connecting block (7), two sets of sliding holes are provided on the top of the base (1), and the two sets of positioning blocks (8) are slidably connected to the sliding holes of the base (1) respectively. The left support (3) and the right support (9) are connected to the right support (10). The bottom of the support (4) is connected to the top of a set of positioning blocks (8), and the bottom of the two sets of positioning blocks (8) is hinged to one end of the top of a set of connecting rods (9), and the bottom ends of the rotating shaft (10) are hinged to the other end of the top of a set of connecting rods (9). The bottom of the left support (3) and the right support (4) are connected to the top of a set of positioning blocks (8), and the left support (3) and the right support (4) slide tightly against the top of the base (1) through the guide assembly. The right end of the left support (3) and the left end of the right support (4) are respectively provided with a gripper assembly.

2. The pipe clamping and positioning mechanism as described in claim 1, characterized in that, The guide assembly includes four sets of bearings (11) and two sets of guide shafts (12). The two ends of the two sets of guide shafts (12) are respectively connected to one end of a set of side plates (2), and the two sets of guide shafts (12) are placed in parallel. The left support (3) and the right support (4) are respectively provided with two sets of reserved holes, and the reserved holes of the two sets of left support (3) and the two sets of right support (4) are respectively provided with a set of bearings (11), and the inner side of the four sets of bearings (11) is slidably fitted to one end of the outer side of a set of guide shafts (12).

3. The pipe clamping and positioning mechanism as described in claim 2, characterized in that, The gripper assembly includes multiple sets of left gripping fingers (13), multiple sets of right gripping fingers (14), a left fixing plate (15), a right fixing plate (16), and a buffer assembly. The right end of the left support (3) is connected to the left end of the left fixing plate (15), and multiple sets of grooves are evenly arranged on the right end of the left support (3). Multiple sets of reserved holes are provided through the left fixing plate (15), and the multiple sets of reserved holes of the left fixing plate (15) are respectively aligned with a set of grooves of the left support (3). The outer sides of the multiple sets of left gripping fingers (13) slide and fit with the reserved holes of the left fixing plate (15) and the grooves of the left support (3), and the left support ( 3) The left end of the groove is connected to the left end of the left finger (13) through the buffer component, the left end of the right support (4) is connected to the left end of the right fixed plate (16), and multiple sets of grooves are evenly arranged on the left end of the right support (4). Multiple sets of reserved holes are provided through the right fixed plate (16), and the multiple sets of reserved holes of the right fixed plate (16) are respectively aligned with a set of grooves of the right support (4). The outer sides of the multiple sets of right fingers (14) are respectively slidably fitted with the reserved holes of the right fixed plate (16) and the grooves of the right support (4), and the right end of the groove of the right support (4) is connected to the left end of the left finger (13) through the buffer component.

4. The pipe clamping and positioning mechanism as described in claim 3, characterized in that, The buffer assembly includes a spring (17), and a set of springs (17) is provided on the left side of the outer side of multiple sets of left gripper fingers (13) and the right side of the outer side of multiple sets of right gripper fingers (14). The multiple sets of springs (17) are respectively slidably fitted with the corresponding grooves of the left support (3) or the right support (4).

5. A pipe clamping and positioning mechanism as described in claim 4, characterized in that, It also includes a protective plate (18), with the top of the two sets of side plates (2) located on the front and rear sides of the base (1) respectively connected to one end of the bottom of a set of protective plates (18).

6. The pipe clamping and positioning mechanism as described in claim 5, characterized in that, The right end of the multiple sets of left-hand gripping fingers (13) and the left end of the multiple sets of right-hand gripping fingers (14) are respectively provided with concave and convex surfaces.

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