Double-station expanding and shrinking machine

Abstract

The utility model belongs to the technical field of expanding and shrinking machines, and particularly relates to a double-station expanding and shrinking machine which comprises an expanding and shrinking machine body. The side wall of the expanding and shrinking machine body is fixedly connected with a supporting plate. A pair of fixing discs is arranged at the top of the supporting plate; a first through hole is formed in the fixed disc; a group of first sliding grooves are formed in one side of the fixed disc; first sliding rods are slidably connected into the first sliding grooves through first sliding blocks. The first sliding rods are fixedly connected with first fixing rods. Clamping blocks are fixedly connected to one ends of the pair of first fixing rods; and a rotating assembly is arranged on the fixing disc, so that the problems that in the prior art, in the operation process of an expanding and shrinking machine, the position of a pipe fitting needs to be fixed, only the pipe fitting with the fixed size can be fixed through existing pipe fitting fixing, and although pipe fittings with other sizes can be fixed, the pipe fittings are very easy to move in the expanding process; therefore, the machining precision is reduced, and even the pipe fitting is scrapped.

Description

Technical Field

[0001] The utility model belongs to the technical field of expansion and contraction machines, in particular to a double-station expansion and contraction machine. Background Art

[0002] The double-station expansion and contraction machine is a mechanical equipment used to process metal pipes and profiles. It can realize the expansion and contraction operations of pipes or profiles. This equipment is widely used in the automotive, furniture, sports equipment and other industries to produce various pipe fittings and frame structures.

[0003] In the prior art, during the operation of the shrinking machine, the position of the pipe needs to be fixed, but the existing pipe fixing method can only fix the pipes of fixed sizes. Although the pipes of other sizes can be fixed, they are easy to move during the expansion process, resulting in a decrease in processing accuracy and even causing the pipes to be scrapped.

[0004] To this end, the utility model provides a double-station expansion and contraction machine. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and to solve the problem that the position of the pipe needs to be fixed during the operation of the compressor in the prior art, the existing pipe fixing method can only fix the pipes of fixed sizes. Although the pipes of other sizes can be fixed, they are easy to move during the expansion process, resulting in a decrease in processing accuracy and even causing the pipes to be scrapped.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a double-station expander described in the utility model includes an expander body; a support plate is fixedly connected to the side wall of the expander body; a pair of fixed plates are arranged on the top of the support plate; a first through hole is opened on the fixed plate; a group of first sliding grooves are opened on one side of the fixed plate; a group of first sliding grooves are slidably connected to a first sliding rod through a first sliding block; a group of first sliding rods are fixedly connected to a first fixed rod; a pair of first fixed rods are fixedly connected to one end of a clamping block; a rotating assembly is arranged on the fixed plate; the rotating assembly is used to move a group of first sliding rods.

[0007] Preferably, the rotating assembly includes a power unit and an arc-shaped through groove; the arc-shaped through groove is provided on a fixed disk; a second fixed rod is slidably connected in the arc-shaped through groove; a rotating disk is provided on one side of the fixed disk; a second through hole is provided on the rotating disk; a group of first sliding through grooves is provided on the rotating disk; a group of the first sliding rods are slidably connected in a group of first sliding through grooves respectively; the power unit is used to drive the rotating disk to rotate.

[0008] Preferably, the power unit includes a first rotating block; the first rotating block is fixedly connected to one end of the second fixed rod; one side of the fixed plate is rotatably connected to the first fixed block via a first rotating shaft; the side wall of the first fixed block is fixedly connected to an electric telescopic rod; the telescopic end of the electric telescopic rod is fixedly connected to a fixing ring; the fixing ring is rotatably connected to the first rotating block.

[0009] Preferably, a pair of second sliding grooves are provided on the support plate; a second sliding plate is slidably connected in each of the pair of second sliding grooves; a pair of fixed plates are respectively fixedly connected to the pair of second sliding plates through fixed plates; a third sliding groove 23 is provided on the support plate; an I-shaped block is slidably connected in the third sliding groove 23 through a third sliding block; a pair of connecting rods are rotatably connected to the I-shaped block through a pair of second rotating shafts; the other ends of the pair of connecting rods are rotatably connected to the fixed plate through third rotating shafts; a driving member is provided on the expander body; the driving member is used to drive the I-shaped block to move.

[0010] Preferably, the driving member comprises a motor; the motor is fixedly connected to the side wall of the expander body; the I-shaped block is threadedly connected with a threaded rod through a threaded hole; and the output end of the motor is drivingly connected to one end of the threaded rod.

[0011] Preferably, a rubber pad is provided on the clamping surface of the clamping block.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The double-station expander and shrinker described in the utility model drives the rotating disk to rotate through the rotating component, thereby driving a group of first sliding rods to be slidably connected in the first sliding groove, that is, they can be clamped by the clamping blocks, and when clamping, the rotating component can control the clamping range of a group of clamping blocks, so that it can cope with pipes of different sizes, thereby avoiding the problem that the position of the pipes needs to be fixed during the operation of the shrinking machine in the prior art, but the existing pipe fixing can only fix the pipes of fixed sizes. Although the pipes of other sizes can be fixed, they are very easy to move during the expansion process, resulting in a decrease in processing accuracy and even causing the pipes to be scrapped.

[0014] 2. The double-station expander described in the utility model drives the I-shaped block to move through a driving member, thereby driving a pair of fixed plates to move to both sides respectively through a connecting rod, so that when the pipe is long and difficult to retract and take out, the fixed plate can be moved to both sides, so that the pipe can be pulled out from the space on both sides, avoiding the problem that the fixed plate cannot move and cannot be pulled out after the pipe is expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the support plate in the utility model;

[0018] Figure 3 It is an exploded view of the second sliding plate in the utility model;

[0019] Figure 4 It is an exploded view of the first sliding rod in the utility model;

[0020] Figure 5 It is an exploded view of the fixing ring in the utility model;

[0021] In the figure: 1. expander body; 2. support plate; 3. fixed plate; 4. first sliding groove; 5. first sliding rod; 6. first fixed rod; 7. clamping block; 8. arc-shaped groove; 9. second fixed rod; 10. rotating plate; 11. first sliding groove; 12. first rotating block; 13. first fixed block; 14. electric telescopic rod; 15. fixing ring; 16. second sliding groove; 17. second sliding plate; 18. I-shaped block; 19. fixed plate; 20. connecting rod; 21. motor; 22. threaded rod; 23. third sliding groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5As shown, a double-station expander described in an embodiment of the utility model includes an expander body 1; a support plate 2 is fixedly connected to the side wall of the expander body 1; a pair of fixed plates 3 are arranged on the top of the support plate 2; a first through hole is opened on the fixed plate 3; a group of first sliding grooves 4 are opened on one side of the fixed plate 3; a group of first sliding grooves 4 are slidably connected to a first sliding rod 5 through a first sliding block; a group of first sliding rods 5 are fixedly connected to a first fixing rod 6; a pair of first fixing rods 6 are fixedly connected to one end of a clamping block 7; a rotating assembly is arranged on the fixed plate 3; the rotating assembly is used to move a group of first sliding rods 5, During operation, the rotating disk 10 is driven to rotate by the rotating assembly, thereby driving a group of first sliding rods 5 to be slidably connected in the first sliding groove 4, which can be clamped by the clamping blocks 7, and when clamping, the rotating assembly can control the clamping range of a group of clamping blocks 7, so as to cope with pipes of different sizes, thereby avoiding the problem in the prior art that the position of the pipe needs to be fixed during the operation of the compressor, but the existing pipe fixing can only fix pipes of fixed sizes. Although pipes of other sizes can be fixed, they are easy to move during the expansion process, resulting in a decrease in processing accuracy and even causing the pipe to be scrapped.

[0024] The rotating assembly includes a power unit and an arc-shaped through groove 8; the arc-shaped through groove 8 is opened on the fixed plate 3; a second fixed rod 9 is slidably connected in the arc-shaped through groove 8; a rotating plate 10 is provided on one side of the fixed plate 3; a second through hole is opened on the rotating plate 10; a group of first sliding through grooves 11 are opened on the rotating plate 10; a group of first sliding rods 5 are slidably connected in a group of first sliding through grooves 11 respectively; the power unit is used to drive the rotating plate 10 to rotate. When working, the rotating plate 10 is driven to rotate by the power unit, so that the first sliding rod 5 can be squeezed through the first through groove on the rotating plate 10, so that the first sliding rod 5 can be slidably connected in the first sliding groove 4 under the squeezing condition, so that the clamping block 7 can be driven to clamp, and the sliding position of the first sliding rod 5 can be controlled by the power unit, so that it can be adjusted according to the thickness of the pipe fittings, which is suitable for most pipe fittings to avoid the inability to effectively fix the pipe fittings.

[0025] The power unit includes a first rotating block 12; the first rotating block 12 is fixedly connected to one end of the second fixed rod 9; one side of the fixed disk 3 is rotatably connected to the first fixed block 13 through the first rotating shaft; the side wall of the first fixed block 13 is fixedly connected to the electric telescopic rod 14; the telescopic end of the electric telescopic rod 14 is fixedly connected to the fixing ring 15; the fixing ring 15 is rotatably connected to the first rotating block 12. When working, the fixing ring 15 is driven to move by the electric telescopic rod 14, so that the second fixed rod 9 can be driven to move, that is, the rotating disk 10 can be driven to move by the second fixed rod 9, so that the first sliding rod 5 can be slidably connected to the first sliding groove 4 through the extrusion of the first through groove, so that the pipe fittings can be clamped, and can be adjusted at will according to the thickness of the pipe fittings, which is suitable for most pipe expansion clamping.

[0026] A pair of second sliding grooves 16 are provided on the support plate 2; a second sliding plate 17 is slidably connected in the pair of second sliding grooves 16; a pair of the fixed plates 3 are fixedly connected to the pair of second sliding plates 17 through the fixed plates 19 respectively; a third sliding groove 23 is provided on the support plate 2; an I-shaped block 18 is slidably connected in the third sliding groove 23 through a third sliding block; a pair of connecting rods 20 are rotatably connected to the I-shaped block 18 through a pair of second rotating shafts; the other ends of the pair of connecting rods 20 are rotatably connected to the fixed plate 19 through the third rotating shaft; a driving member is provided on the expander body 1; the driving member is used to drive the I-shaped block 18 to move. When working, the I-shaped block 18 is driven to move by the driving member, so that the pair of fixed plates 19 can be driven to move to both sides respectively through the connecting rod 20, so that when the pipe is long and difficult to retract and take out, the fixed plate 3 can be moved to both sides, so that the pipe can be pulled out from the space on both sides, avoiding the problem that the fixed plate 3 cannot move and cannot be pulled out after the pipe is expanded.

[0027] The driving member includes a motor 21; the motor 21 is fixedly connected to the side wall of the expander body 1; the I-shaped block 18 is threadedly connected with a threaded rod 22 through a threaded hole; the output end of the motor 21 is drivingly connected to one end of the threaded rod 22. When working, the motor 21 drives the threaded rod 22 to rotate, and the threaded rod 22 rotates to drive the I-shaped block 18 to slide in the third sliding groove 23, so that a pair of fixed plates 19 can be driven to move to both sides respectively through the connecting rod 20, so that the purpose of adjusting the position of the fixed plate 3 can be achieved, thereby facilitating the removal of the pipe fittings.

[0028] The clamping surface of the clamping block 7 is provided with a rubber pad. When working, the rubber pad on the clamping surface of the clamping block 7 can increase the friction of the clamping surface, and the rubber pad can play a buffering effect, thereby avoiding deformation of the pipe fitting caused by excessive squeezing.

[0029] Working principle: The rotating disk 10 is driven to rotate by the rotating assembly, thereby driving a group of first sliding rods 5 to be slidably connected in the first sliding groove 4, that is, it can be clamped by the clamping block 7, and when clamping, the rotating assembly can control the clamping range of a group of clamping blocks 7, so that it can cope with pipes of different sizes, thereby avoiding the problem that the position of the pipe needs to be fixed during the operation of the compressor in the prior art, but the existing pipe fixing can only fix the pipes of fixed sizes. Although the pipes of other sizes can be fixed, they are easy to move during the expansion process, thereby causing The problem of reduced processing accuracy or even scrapping of pipe fittings is solved by driving the rotating disk 10 to rotate through the power unit, so that the first sliding rod 5 can be squeezed through the first through groove on the rotating disk 10, so that the first sliding rod 5 can be slidably connected in the first sliding groove 4 under the condition of squeezing, so as to drive the clamping block 7 to clamp, and the sliding position of the first sliding rod 5 can be controlled by the power unit, so that it can be adjusted according to the thickness of the pipe fitting, which is suitable for most pipe fittings and avoids the inability to effectively fix the pipe fittings. The fixing ring 15 is driven by the electric telescopic rod 14 to The first sliding rod 5 is slidably connected to the first sliding groove 4 by the extrusion of the first through groove, so that the pipe fitting can be clamped, and it can be adjusted at will according to the thickness of the pipe fitting, which is suitable for most pipe fitting expansion clamping. The I-shaped block 18 is driven to move by the driving member, so that the pair of fixed plates 19 can be driven to move to both sides respectively through the connecting rod 20, so that when the pipe fitting is long and difficult to retract and take out, the fixed plate 3 is moved to both sides, so that it can be taken out from both sides. The pipe fittings can be pulled out through the side space to avoid the problem that the fixed plate 3 cannot be moved and cannot be pulled out after the pipe fittings are expanded. The threaded rod 22 is driven to rotate by the motor 21, and the rotation of the threaded rod 22 drives the I-shaped block 18 to slide in the third sliding groove 23, so that a pair of fixed plates 19 can be driven to move to both sides respectively through the connecting rod 20, so that the purpose of adjusting the position of the fixed plate 3 can be achieved, thereby facilitating the removal of the pipe fittings. A rubber pad is provided on the clamping surface of the clamping block 7, which can increase the friction of the clamping surface, and can play a buffering effect through the rubber pad, thereby avoiding deformation of the pipe fitting caused by excessive squeezing.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A double-station expansion and contraction machine, characterized in that: The invention comprises an expander body (1); a support plate (2) is fixedly connected to the side wall of the expander body (1); a pair of fixed plates (3) are arranged on the top of the support plate (2); a first through hole is provided on the fixed plate (3); a group of first sliding grooves (4) are provided on one side of the fixed plate (3); a group of first sliding grooves (4) are slidably connected to a first sliding rod (5) through a first sliding block; a group of first sliding rods (5) are fixedly connected to a first fixed rod (6); a pair of first fixed rods (6) are fixedly connected to one end with a clamping block (7); a rotating assembly is arranged on the fixed plate (3); the rotating assembly is used to move a group of first sliding rods (5).

2. A double-station expansion and contraction machine according to claim 1, characterized in that: The rotating assembly comprises a power unit and an arcuate through groove (8); the arcuate through groove (8) is provided on the fixed disk (3); a second fixed rod (9) is slidably connected in the arcuate through groove (8); a rotating disk (10) is provided on one side of the fixed disk (3); a second through hole is provided on the rotating disk (10); a group of first sliding through grooves (11) are provided on the rotating disk (10); a group of the first sliding rods (5) are slidably connected in the group of first sliding through grooves (11); the power unit is used for driving the rotating disk (10) to rotate.

3. A double-station expansion and contraction machine according to claim 2, characterized in that: The power unit comprises a first rotating block (12); the first rotating block (12) is fixedly connected to one end of a second fixed rod (9); one side of the fixed plate (3) is rotatably connected to the first fixed block (13) via a first rotating shaft; an electric telescopic rod (14) is fixedly connected to the side wall of the first fixed block (13); a fixed ring (15) is fixedly connected to the telescopic end of the electric telescopic rod (14); and the fixed ring (15) is rotatably connected to the first rotating block (12).

4. A double-station expansion and contraction machine according to claim 3, characterized in that: The support plate (2) is provided with a pair of second sliding grooves (16); the second sliding plates (17) are slidably connected in the pair of second sliding grooves (16); the pair of fixed plates (3) are fixedly connected to the pair of second sliding plates (17) through fixed plates (19) respectively; the support plate (2) is provided with a third sliding groove (23); the I-shaped block (18) is slidably connected in the third sliding groove (23) through a third sliding block; the I-shaped block (18) is rotatably connected to a pair of connecting rods (20) through a pair of second rotating shafts; the other ends of the pair of connecting rods (20) are rotatably connected to the fixed plate (19) through a third rotating shaft; a driving member is provided on the expander body (1); the driving member is used to drive the I-shaped block (18) to move.

5. A double-station expansion and contraction machine according to claim 4, characterized in that: The driving member comprises a motor (21); the motor (21) is fixedly connected to the side wall of the expander body (1); the I-shaped block (18) is threadedly connected to a threaded rod (22) through a threaded hole; and the output end of the motor (21) is drivingly connected to one end of the threaded rod (22).

6. A double-station expansion and contraction machine according to claim 5, characterized in that: A rubber pad is provided on the clamping surface of the clamping block (7).

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