Clamping device for metal pipe machining

Abstract

The utility model relates to a clamping device for metal pipe machining. Comprising a mounting bottom plate, two groups of guide bases are fixedly connected to the mounting bottom plate, a first supporting wheel assembly and a second supporting wheel assembly which are adjustable in distance are mounted on one group of guide bases, and a third supporting wheel assembly and a fourth supporting wheel assembly which are adjustable in distance are mounted on the other group of guide bases. The rotation driving assembly is used for driving the fourth supporting wheel assembly to rotate; the lifting mounting frame is movably connected with a lifting seat plate, and the lifting driving assembly is further included; a first support arm structure, a second support arm structure and a third support arm structure are mounted on the lifting seat plate; and each support arm structure is provided with a position-adjustable pinch roller assembly. The metal pipe fitting clamping device can stably clamp metal pipe fittings with different sizes, prevents the pipe fittings from shaking and position deviation, is high in applicability, can drive the pipe fittings to rotate according to machining requirements, has more diversified functions, and improves the use convenience.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing, and in particular relates to a clamping device for processing metal pipes. Background Art

[0002] Metal pipes are tubular materials made from metal. Through various processing techniques, they can be transformed into metal accessories with different functions. They are a crucial component of many industrial machinery. During further processing, they require a fixed clamp to prevent them from moving during processing, thereby preventing any interruption in the machining process.

[0003] A fixture is a process device used to quickly secure a workpiece during machining, maintaining the correct relative position of the machine tool, cutting tool, and workpiece. This means fixtures are indispensable components in machining. Driven by the development of machine tool technology toward high speed, efficiency, precision, integration, intelligence, and environmental friendliness, fixture technology is also evolving toward high precision, efficiency, modularity, combination, universality, and cost-effectiveness.

[0004] Traditional clamping devices can fix and clamp metal pipes to prevent them from shaking during processing. However, pipes are difficult to rotate when clamped by traditional clamping devices. During processing, the position of the processing operation head can only be changed to perform processing, which is inconvenient to use. In addition, most traditional clamping devices are prone to having a small clamping area, which easily leads to unstable clamping due to small force. This causes the steel pipe to often shake and shift in position during processing, and most clamping tools are not adjustable and cannot perform clamping operations on metal pipes of different sizes. Therefore, it is urgent to design a clamping device for metal pipe processing to solve the above problems. Utility Model Content

[0005] The present invention aims to address the technical problems existing in the prior art by providing a clamping device for metal pipe processing with a rational structural design. The present invention can stably clamp metal pipes of different sizes, preventing them from shaking or shifting during processing. It has strong applicability and can also rotate the pipes according to processing needs, providing more diverse functions and improving ease of use.

[0006] The utility model adopts the following technical solutions to solve the technical problems existing in the known technology: a clamping device for metal pipe processing includes a mounting base, two groups of guide bases arranged in parallel are fixedly connected to the mounting base, a first support wheel assembly and a second support wheel assembly with adjustable spacing are installed on one group of guide bases, and a third support wheel assembly and a fourth support wheel assembly with adjustable spacing are installed on the other group of guide bases, and also includes a rotation drive assembly for driving the fourth support wheel assembly to rotate; it also includes a lifting mounting frame fixed to the mounting base, a lifting seat plate movably connected to the lifting mounting frame, and a lifting drive assembly installed on the lifting mounting frame for driving the lifting seat plate to move up and down; a first support arm structure, a second support arm structure and a third support arm structure distributed in parallel are installed on the lifting seat plate, and the first support arm structure and the third support arm structure are respectively located above the two groups of guide bases; a position-adjustable pressure wheel assembly is installed on each support arm structure; the pressure wheel assembly includes a transverse displacement mounting block whose position is adjustable in the longitudinal direction of the corresponding support arm structure, and a triangular pressure wheel mechanism with adjustable longitudinal position is installed on the transverse displacement mounting block.

[0007] The advantages and positive effects of the present invention are as follows: the present invention provides a clamping device for metal pipe processing, which supports the pipe at different axial positions of the pipe by providing a first support wheel assembly and a second support wheel assembly with adjustable spacing, and a third support wheel assembly and a fourth support wheel assembly with adjustable spacing, and provides a plurality of pressure roller assemblies with adjustable lateral positions, cooperates with a lifting seat plate and a lifting drive assembly, and can press the pipe downward at different axial positions, and cooperates with the plurality of support wheel assemblies to achieve multi-point clamping operation of the pipe, and is suitable for pipes of different sizes, thereby increasing the clamping area of ​​the pipe, thereby maintaining the stability of the clamping state, improving the clamping effect, and avoiding the pipe from shaking and position shifting during the processing; by providing a rotation drive assembly, the clamped pipe can be driven to rotate as needed during the processing, thereby ensuring the smooth progress of the processing operation without changing the position of the processing operation head. The present invention can stably clamp metal pipes of different sizes, avoid shaking and position shifting of the pipes during the processing, has strong applicability, and can drive the pipes to rotate according to processing needs, has more diverse functions, and improves the convenience of use.

[0008] Preferably: the pressure wheel assembly also includes a screw mounting seat and two sets of transverse guide bars fixed on the corresponding support arm structure, the transverse mounting block is slidably inserted between the two sets of transverse guide bars, and also includes a transverse adjustment screw threaded on the screw mounting seat, the inner end of the transverse adjustment screw is movably connected to the transverse mounting block, and also includes a handwheel installed on the outer end of the transverse adjustment screw.

[0009] Preferably: the pressure wheel assembly also includes a longitudinally arranged adjusting screw rotatably connected to the transverse mounting block, a mounting nut is screwed on the adjusting screw, and is connected to the triangular pressure wheel mechanism through the mounting nut, and also includes a handwheel installed at the upper end of the adjusting screw.

[0010] Preferably: the triangular pressure wheel mechanism includes a lifting plate seat connected to the mounting nut, two sets of pressure wheel seat plates arranged opposite to each other are fixedly connected to the lifting plate seat, and two sets of pressing rollers arranged in parallel are rotatably connected between the two sets of pressure wheel seat plates.

[0011] Preferably: the lifting drive assembly includes a lifting screw that is rotatably connected to the lifting mounting frame and is longitudinally arranged, and the lifting screw is rotatably connected to the second arm structure through a nut; it also includes multiple sets of lifting guide rails that are longitudinally arranged and fixed to the lifting mounting frame, and the lifting seat plate is slidably connected to the lifting guide rails through sliders; it also includes a lifting motor installed on the lifting mounting frame, which is used to drive the lifting screw to rotate.

[0012] Preferably: the first support wheel assembly includes a grooved slider slidably connected to the guide base, two sets of support wheel seat plates arranged opposite to each other are fixed on the grooved slider, a support wheel shaft is rotatably connected between the two sets of support wheel seat plates, and a support roller is keyed to the support wheel shaft; it also includes a locking block fixed to the grooved slider, a strip hole corresponding to the locking block is opened on the guide base, and the locking block is locked and connected to the guide base by a screw and a locking nut passed through the strip hole; the structures of the second support wheel assembly, the third support wheel assembly and the fourth support wheel assembly are consistent with the structure of the first support wheel assembly.

[0013] Preferably: the rotation drive assembly includes a support structure installed on the mounting base, a transversely arranged driving shaft is rotatably connected to the support structure, a driving gear is keyed to the driving shaft, and also includes a driven gear keyed to the fourth support wheel assembly and arranged corresponding to the driving gear, and also includes a tensioning sprocket with adjustable longitudinal position installed on the support structure, a chain is transmission-connected between the driving gear, the driven gear and the tensioning sprocket; and also includes a rotating motor for driving the driving shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 yes Figure 1 A magnified schematic diagram of area A;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressure wheel assembly and the second support arm structure in the present invention;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the first wheel assembly in the present utility model;

[0018] Figure 5 Yes Figure 1 Schematic diagram of the enlarged area B in FIG.

[0019] In the figure: 1. Mounting base; 2. Guide base; 3. First support wheel assembly; 3-1. Slider with groove; 3-2. Support wheel seat plate; 3-3. Support wheel shaft; 3-4. Support roller; 3-5. Locking block; 4. Second support wheel assembly; 5. Screw connecting plate; 6. Pressure wheel assembly; 6-1. Pressing roller; 6-2. Pressure wheel seat plate; 6-3. Lifting plate seat; 6-4. Mounting nut; 6-5. Transverse guide bar; 6-6. Transverse mounting block; 6-7. Transverse adjustment screw; 6-8. Screw mounting seat; 7. First support arm structure; 8. Lifting Lowering mounting frame; 9. Lifting seat plate; 10. Lifting drive assembly; 10-1. Lifting guide rail; 10-2. Lifting screw; 10-3. Lifting motor; 11. Second support arm structure; 11-1. Support arm shell; 11-2. Shell plug-in block; 11-3. Intermediate plug-in block; 12. Third support arm structure; 13. Third support wheel assembly; 14. Fourth support wheel assembly; 15. Rotation drive assembly; 15-1. Rotating motor; 15-2. Driving shaft; 15-3. Driving gear; 15-4. Driven gear; 16. Chuck component. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail:

[0021] See Figure 1 The clamping device for metal pipe processing of the present invention includes a mounting base 1, on which two groups of guide bases 2 arranged in parallel are fixedly connected, a first support wheel assembly 3 and a second support wheel assembly 4 with adjustable spacing are installed on one group of guide bases 2, and a third support wheel assembly 13 and a fourth support wheel assembly 14 with adjustable spacing are installed on the other group of guide bases 2, and also includes a rotation drive assembly 15 for driving the fourth support wheel assembly 14 to rotate.

[0022] like Figure 4 As shown, the above-mentioned first support wheel assembly 3 includes a grooved slider 3-1 that is slidably connected to the guide base 2, two sets of support wheel seat plates 3-2 that are relatively arranged are fixedly connected to the grooved slider 3-1, a support wheel shaft 3-3 is rotatably connected between the two sets of support wheel seat plates 3-2, and a support roller 3-4 is keyed to the support wheel shaft 3-3; it also includes a locking block 3-5 fixed to the grooved slider 3-1, a strip hole corresponding to the locking block 3-5 is opened on the guide base 2, and the locking block 3-5 is locked and connected to the guide base 2 by a screw and a locking nut passing through the strip hole.

[0023] In addition, in this embodiment, the cross-section of the above-mentioned guide base 2 is an I-shaped structure, including a top plate and a bottom plate distributed in an upper and lower manner, and a vertical plate is fixed between the top plate and the bottom plate to connect the two into one. A sliding groove is provided on the grooved slider 3-1, which is slidably connected to the top plate of the guide base 2; a strip hole extending along its length direction is provided on the top plate, and a through hole is provided on the above-mentioned locking block 3-5. The first wheel assembly 3 and the guide base 2 are locked and connected by screws and locking nuts passing through the above-mentioned through holes and strip holes.

[0024] In addition, in this embodiment, the structures of the second support wheel assembly 4 , the third support wheel assembly 13 and the fourth support wheel assembly 14 are consistent with the structure of the first support wheel assembly 3 .

[0025] Further, such as Figure 5 As shown, the rotation drive assembly 15 includes a support structure mounted on the mounting base 1, a transversely arranged driving shaft 15-2 being rotatably connected to the support structure, a driving gear 15-3 being keyed to the driving shaft 15-2, a driven gear 15-4 being keyed to the fourth support wheel assembly 14 and corresponding to the driving gear 15-3, a longitudinally adjustable tensioning sprocket mounted on the support structure, a chain being transmission-connected between the driving gear 15-3, the driven gear 15-4, and the tensioning sprocket; and a rotary motor 15-1 for driving the driving shaft 15-2 in rotation. Furthermore, the driving shaft 15-2 is rotationally connected to the support structure via a seat bearing, and the rotary motor 15-1 is mounted on the support structure.

[0026] See further Figure 1 This embodiment further includes a lifting mounting frame 8 fixed to the mounting base 1, a lifting seat plate 9 movably connected to the lifting mounting frame 8, and a first arm structure 7, a second arm structure 11, and a third arm structure 12 distributed in parallel are installed on the lifting seat plate 9, and the first arm structure 7 and the third arm structure 12 are respectively located above the two groups of guide bases 2; a position-adjustable pressure wheel assembly 6 is installed on each first arm structure 7; this embodiment further includes a lifting drive assembly 10 installed on the lifting mounting frame 8, for driving the lifting seat plate 9 to move up and down.

[0027] like Figure 2As shown, the aforementioned lifting drive assembly 10 includes a longitudinally mounted lifting screw 10-2 rotatably connected to the lifting mounting frame 8. The lifting screw 10-2 is rotatably connected to the second support arm structure 11 via a nut. It also includes multiple longitudinally mounted lifting guide rails 10-1 fixed to the lifting mounting frame 8. The lifting seat plate 9 is slidably connected to the lifting guide rails 10-1 via sliders. It also includes a lifting motor 10-3 mounted on the lifting mounting frame 8 for rotating the lifting screw 10-2. Furthermore, this embodiment includes a screw connecting plate 5 fixed to the middle portion of the lifting mounting frame 8. The upper end of the lifting screw 10-2 is rotatably connected to the top of the lifting mounting frame 8 via a rolling bearing, and the lower end is rotatably connected to the screw connecting plate 5 via a rolling bearing.

[0028] like Figure 3 As shown, the above-mentioned pressure wheel assembly 6 includes a transverse mounting block 6-6 whose position can be adjusted in the longitudinal direction of the corresponding support arm structure, and a triangular pressure wheel mechanism with adjustable longitudinal position is installed on the transverse mounting block 6-6. The pressure wheel assembly 6 also includes a screw mounting seat 6-8 and two sets of transverse guide bars 6-5 fixed to the corresponding support arm structure, the transverse mounting block 6-6 is slidably inserted between the two sets of transverse guide bars 6-5, and also includes a transverse adjustment screw 6-7 screwed on the screw mounting seat 6-8, the inner end of the transverse adjustment screw 6-7 is movably connected to the transverse mounting block 6-6, and also includes a handwheel installed on the outer end of the transverse adjustment screw 6-7. A mounting head is fixed to the inner end of the transverse adjustment screw 6-7, and the mounting head is located in a groove opened on the end face of the transverse mounting block 6-6. It also includes a cover plate installed on the end face of the transverse mounting block 6-6 for closing the above-mentioned groove, and the above-mentioned cover plate is provided with a notch for the transverse adjustment screw 6-7 to pass through.

[0029] The pressure roller assembly 6 also includes a longitudinally arranged adjustment screw rotatably connected to the transverse mounting block 6-6. A mounting nut 6-4 is threaded onto the adjustment screw and connected to the triangular pressure roller mechanism via the mounting nut 6-4. The adjustment screw also includes a handwheel mounted on the upper end of the adjustment screw. In addition, a through hole is formed at the center of the transverse mounting block 6-6, and a strip groove extending axially is formed on the inner wall of the through hole. A slider is mounted on the outer wall of the mounting nut 6-4, which slides through the strip groove.

[0030] like Figure 3 As shown, the above-mentioned triangular pressure wheel mechanism includes a lifting plate seat 6-3 connected to the mounting nut 6-4, two sets of pressure wheel seat plates 6-2 arranged opposite to each other are fixed on the lifting plate seat 6-3, and two sets of pressing rollers 6-1 arranged in parallel are rotatably connected between the two sets of pressure wheel seat plates 6-2.

[0031] like Figure 3As shown, the second arm structure 11 comprises an intermediate insert 11-3 fixed to the lifting seat plate 9. The intermediate insert 11-3 has two sets of opposing slots, a housing insert 11-2 slidably inserted within the two sets of slots, and a removable screw connection between the housing insert 11-2 and the intermediate insert 11-3. Furthermore, the second arm structure 11 comprises an arm housing 11-1 fixed to each housing insert 11-2. The top surface of each arm housing 11-1 has a slot for the adjustment screw to pass through. In this embodiment, the structures of the first and third arm structures 7 and 12 are identical to those of the second arm structure 11. The screw mounting base 6-8 is mounted between the two sets of arm housings 11-1.

[0032] To facilitate adjustment, a scale (not shown) is installed on each guide base 2, the first arm structure 7, the second arm structure 11, and the third arm structure 12. In addition, to further improve the functionality of the present invention, a chuck 16 is installed on the active shaft 15-2 in the rotation drive assembly 15.

[0033] Working principle:

[0034] In the actual working process, the mounting base 1 is mounted on the frame of the pipe processing equipment, and the spacing between the two groups of support wheel assemblies mounted on the same guide base 2 is adjusted according to the size of the pipe to be processed, and the lateral position of the pressure wheel assembly 6 is adjusted according to the spacing between the two corresponding groups of support wheel assemblies, that is, the hand wheel mounted on the lateral adjustment screw 6-7 is manually rotated to move the lateral mounting block 6-6 along the lateral guide bar 6-5, thereby adjusting the lateral position of the triangular pressure wheel mechanism so that the triangular pressure wheel mechanism is located above the middle position of the two groups of support wheel assemblies;

[0035] After completing the above-mentioned position adjustment operation, the pipe to be processed is pushed between the corresponding two groups of support wheel assemblies through manual operation or the feeding device on the pipe processing equipment, and the pipe is supported by the corresponding two groups of support wheel assemblies; then the lifting motor 10-3 in the lifting drive assembly 10 is started to drive the pressure wheel assembly 6 to move downward until the two groups of pressing rollers 6-1 in the pressure wheel assembly 6 contact the outer wall of the pipe, and then the adjusting screw longitudinally arranged in the pressure wheel assembly 6 is rotated by turning the handwheel to drive the triangular pressure wheel mechanism to press down, thereby realizing multi-point clamping operation of the pipe, maintaining the stability of the clamping state, and improving the clamping effect; during processing operations, when the pipe needs to be rotated, the rotating motor 15-1 in the rotating drive assembly 15 can be started to drive the support roller in the fourth support wheel assembly 14 to rotate actively, so as to achieve the purpose of driving the pipe to rotate, without changing the position of the processing operation head to ensure the smooth progress of the processing operation.

Claims

1. A clamping device for metal pipe processing, characterized by: The invention comprises a mounting base (1), two sets of guide bases (2) arranged in parallel are fixedly connected to the mounting base (1), a first wheel assembly (3) and a second wheel assembly (4) with adjustable spacing are installed on one set of guide bases (2), a third wheel assembly (13) and a fourth wheel assembly (14) with adjustable spacing are installed on the other set of guide bases (2), and a rotation drive assembly (15) for driving the fourth wheel assembly (14) to rotate; a lifting mounting frame (8) fixedly connected to the mounting base (1), a lifting seat plate (9) movably connected to the lifting mounting frame (8), and a lifting mechanism (15) on the lifting mounting frame (8). The installed lifting drive assembly (10) is used to drive the lifting seat plate (9) to move up and down; a first arm structure (7), a second arm structure (11) and a third arm structure (12) are installed on the lifting seat plate (9) and are arranged in parallel, and the first arm structure (7) and the third arm structure (12) are respectively located above the two groups of guide bases (2); a position-adjustable pressure wheel assembly (6) is installed on each arm structure; the pressure wheel assembly (6) includes a transverse mounting block (6-6) whose position is adjustable in the longitudinal direction of the corresponding arm structure, and a longitudinal position-adjustable triangular pressure wheel mechanism is installed on the transverse mounting block (6-6).

2. The metal pipe processing clamping device according to claim 1, wherein: The pressure wheel assembly (6) further comprises a screw mounting seat (6-8) fixedly connected to the corresponding support arm structure and two sets of transverse guide bars (6-5), a transverse mounting block (6-6) being slidably inserted between the two sets of transverse guide bars (6-5), a transverse adjustment screw (6-7) being screwed on the screw mounting seat (6-8), an inner end of the transverse adjustment screw (6-7) being movably connected to the transverse mounting block (6-6), and a hand wheel mounted on the outer end of the transverse adjustment screw (6-7).

3. The metal pipe processing clamping device according to claim 1, wherein: The pressure wheel assembly (6) also includes a longitudinally arranged adjusting screw rotatably connected to the transverse mounting block (6-6), a mounting nut (6-4) screwed on the adjusting screw and connected to the triangular pressure wheel mechanism via the mounting nut (6-4), and a hand wheel installed at the upper end of the adjusting screw.

4. The metal pipe processing clamping device according to claim 3, wherein: The triangular pressing wheel mechanism comprises a lifting plate seat (6-3) connected to a mounting nut (6-4), two sets of pressing wheel seat plates (6-2) arranged opposite to each other are fixedly connected to the lifting plate seat (6-3), and two sets of pressing rollers (6-1) arranged in parallel are rotatably connected between the two sets of pressing wheel seat plates (6-2).

5. The clamping device for metal pipe processing according to claim 1, wherein: The lifting drive assembly (10) includes a lifting screw (10-2) rotatably connected and longitudinally arranged on the lifting mounting frame (8), the lifting screw (10-2) being rotatably connected to the second support arm structure (11) via a nut; further includes a plurality of sets of lifting guide rails (10-1) longitudinally arranged and fixedly connected to the lifting mounting frame (8), the lifting seat plate (9) being slidably connected to the lifting guide rails (10-1) via a slider; and further includes a lifting motor (10-3) mounted on the lifting mounting frame (8) for driving the lifting screw (10-2) to rotate.

6. The clamping device for metal pipe processing according to claim 1, wherein: The first support wheel assembly (3) comprises a grooved slider (3-1) slidably connected to the guide base (2); two groups of support wheel seat plates (3-2) arranged opposite to each other are fixedly connected to the grooved slider (3-1); a support wheel shaft (3-3) is rotatably connected between the two groups of support wheel seat plates (3-2); and a support roller (3-4) is key-connected to the support wheel shaft (3-3); and further comprises a locking block (3-5) fixedly connected to the grooved slider (3-1); a strip hole corresponding to the locking block (3-5) is opened on the guide base (2); the locking block (3-5) is locked and connected to the guide base (2) by a screw and a locking nut inserted into the strip hole; the structures of the second support wheel assembly (4), the third support wheel assembly (13) and the fourth support wheel assembly (14) are all consistent with the structure of the first support wheel assembly (3).

7. The metal pipe processing clamping device according to claim 1, wherein: The rotation drive assembly (15) comprises a support structure mounted on a mounting base plate (1), a transversely arranged driving shaft (15-2) being rotatably connected to the support structure, a driving gear (15-3) being key-connected to the driving shaft (15-2), a driven gear (15-4) being key-connected to a fourth support wheel assembly (14) and being arranged corresponding to the driving gear (15-3), a tensioning sprocket with an adjustable longitudinal position mounted on the support structure, a chain being transmission-connected between the driving gear (15-3), the driven gear (15-4) and the tensioning sprocket; and a rotary motor (15-1) for driving the driving shaft (15-2) to rotate.

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