Tool clamp of pipe fitting flattening machine

Abstract

The utility model provides a work fixture for a pipe fitting flattening machine, which relates to the technical field of fixtures for flattening machines and comprises a shell, a plurality of threaded rods, sleeves on the threaded rods and clamping blocks on the sleeves. The inner sides of the two ends of the shell are slidably connected with a plurality of sets of spring rods in one-to-one correspondence with the threaded rods in position and number and a plurality of sets of electric push rods in one-to-one correspondence with the spring rods in position and number correspondingly, and any set of spring rods and electric push rods revolve around the center axis of the shell. One end face of the inner wall of the shell is rotationally connected with an upper ring rack concentric with the multiple sets of spring rods, and the other end face of the inner wall of the shell is rotationally provided with a lower ring rack concentric with the multiple sets of electric push rods. An L-shaped plate can be meshed with the tooth surface of an upper ring rack through extension of the telescopic end of an electric push rod, and when the upper ring rack rotates, a first gear can be driven to change the position, and a clamping block is driven to change the position.

Description

Technical Field

[0001] The utility model relates to the technical field of flattening machine clamps, in particular to a tooling clamp for a pipe flattening machine. Background Art

[0002] After the pipe fittings are processed, the burrs on both ends of the pipe fittings need to be removed. Currently, most people use pipe flattening machines to process the pipe ends. However, the clamps in the existing pipe end flattening machines have poor clamping effect on the pipe fittings, making the pipe fittings prone to shaking during the grinding process.

[0003] Therefore, a fixture for the production of pipe end flattening machines in the prior art is disclosed, with publication number CN213916847U, wherein a driving motor is installed on the rear end face of the mounting box, a second transmission gear is installed on the output end of the driving motor, the second transmission gear is fitted and connected with the first transmission gear, a rotating plate is installed on the inner wall of the first transmission gear, a gear ring is fixed on the front end face of the rotating plate, a third transmission gear is meshed and connected with the front end face of the gear ring, a threaded rod is fixed on the side face of the third transmission gear, the threaded rod extends into the interior of the movable plate, a threaded hole is provided inside the movable plate and is meshed with the threaded rod, and a fixing fixture is installed on the tail end of the movable plate.

[0004] In the device, the position of the threaded rod is fixed, so that when the device is used, it can only clamp circular pipes, and the fixing effect is poor when clamping square or polygonal pipes. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a tooling fixture for a pipe flattening machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a pipe flattening machine fixture, comprising a shell, a plurality of threaded rods, a sleeve on the threaded rod, and a clamp on the sleeve, wherein the inner sides of both ends of the shell are respectively slidably connected with a plurality of groups of spring rods corresponding to the positions and numbers of the plurality of threaded rods and a plurality of groups of electric push rods corresponding to the positions and numbers of the plurality of spring rods, any group of spring rods and the electric push rods revolve around the central axis of the shell, and one end face of the inner wall of the shell is rotatably connected with an upper ring rack concentric with the plurality of groups of spring rods, an inner wall The other end face is rotatably mounted with a lower ring rack which is concentric with several groups of electric push rods. The telescopic end of any group of spring rods is integrally formed with the telescopic end of the corresponding group of electric push rods. The threaded rod is rotatably mounted between the telescopic ends of the spring rods of the corresponding groups. One end of the threaded rod mounting sleeve passes through the spring rod and extends toward the central axis of the shell. One end of the sleeve is plugged into the telescopic end of the adjacent spring rod. A gear 1 for meshing with the lower ring rack is fixedly mounted on the threaded rod. An L-shaped plate for meshing with the tooth surface of the upper ring rack is fixedly mounted on the telescopic end of any group of spring rods.

[0007] Preferably, the number of a group of electric push rods and a group of spring rods are two and they are arranged along the radius direction of the shell. The two end surfaces of the inner wall of the shell are respectively provided with an upper annular groove slidably connected to the spring rod cylinder body and a lower annular groove slidably connected to the electric push rod cylinder body.

[0008] Preferably, a motor is fixedly mounted on one of the electric push rods, and the main shaft of the motor is fixed to the threaded rod at the corresponding position.

[0009] Preferably, an annular straight tooth surface portion is provided on the outer side surface of the upper ring rack, and the straight tooth surface portion is meshed with gear 2.

[0010] Preferably, a motor is also fixed to one end surface of the housing, and the motor main shaft and the gear end surfaces of the housing end surface are fixed.

[0011] Preferably, the threaded rod is threadedly connected to the sleeve, and the other end of the sleeve is fixedly connected to the clamping block.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the utility model, by arranging an electric push rod, a spring rod, an upper ring rack and an L-shaped plate, the L-shaped plate can be engaged with the tooth surface of the upper ring rack by extending the telescopic end of the electric push rod. When the upper ring rack rotates, it can drive the position of gear 1 to change, and drive the position of the clamping block to change. When the device faces pipes of different shapes, by adjusting the position of the clamping block, the clamping block can act vertically on the outer surface of the pipe, thereby having a good fixing effect on pipes of different shapes.

[0014] 2. In the present invention, by setting a motor to drive gear 2 to rotate, when the L-shaped plate is about to engage with the upper ring rack, the upper ring rack will continuously adjust the position of its own tooth groove, making it convenient for the end of the L-shaped plate to extend into the tooth groove and engage with the upper ring rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural diagram of the pipe flattening machine fixture;

[0016] Figure 2 The utility model provides a schematic diagram of the internal structure of the pipe flattening machine fixture;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle threaded rod;

[0018] Figure 4 for Figure 3 Schematic diagram of the upper ring rack structure;

[0019] Figure 5for Figure 3 Schematic diagram of the motor structure.

[0020] Legend: 1. Housing; 2. Clamp; 3. Sleeve; 4. Threaded rod; 5. Gear 1; 6. Electric push rod; 7. Spring rod; 8. Lower ring rack; 9. Lower annular groove; 10. Straight tooth surface; 11. Upper ring rack; 12. Upper annular groove; 13. Gear 2; 14. Motor; 15. L-shaped plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figure 1-5 As shown, the fixture of the pipe flattening machine includes a shell 1, a plurality of threaded rods 4, a sleeve 3 on the threaded rod 4, and a clamp 2 on the sleeve 3. The inner sides of both ends of the shell 1 are respectively slidably connected with a plurality of groups of spring rods 7 corresponding to the positions and quantities of the plurality of threaded rods 4, and a plurality of groups of electric push rods 6 corresponding to the positions and quantities of the plurality of spring rods 7. Any group of spring rods 7 and the electric push rods 6 revolve around the central axis of the shell 1. One end surface of the inner wall of the shell 1 is rotatably connected with an upper ring rack 11 concentric with the plurality of groups of spring rods 7, and the other end surface of the inner wall is rotatably installed with a lower ring rack 8 concentric with the plurality of groups of electric push rods 6. The telescopic end of any group of spring rods 7 is connected to the corresponding group of electric push rods. The telescopic end of the rod 6 is integrally formed, and the threaded rod 4 is rotatably installed between the telescopic ends of the spring rods 7 of the corresponding groups. One end of the threaded rod 4 mounting sleeve 3 passes through the spring rod 7 and extends toward the central axis direction of the shell 1. One end of the sleeve 3 is plugged into the telescopic end of the adjacent spring rod 7. A gear 5 for meshing with the lower ring rack 8 is fixedly installed on the threaded rod 4. An L-shaped plate 15 for meshing with the tooth surface of the upper ring rack 11 is fixedly installed on the telescopic end of any group of spring rods 7. A motor 14 is fixedly installed on one of the electric push rods 6. The main shaft of the motor 14 is fixed to the threaded rod 4 at the corresponding position. The threaded rod 4 is threadedly connected to the sleeve 3, and the other end of the sleeve 3 is fixedly connected to the clamping block 2.

[0024] By adopting this technical solution, by arranging the electric push rod 6, the spring rod 7, the upper ring rack 11 and the L-shaped plate 15, the extension of the telescopic end of the electric push rod 6 can make the L-shaped plate 15 engage with the tooth surface of the upper ring rack 11. When the upper ring rack 11 rotates, it can drive the gear 1 5 to change its position, thereby driving the clamping block 2 to move and adjust the position of the clamping block 2. Specifically, one group of electric push rods 6 extends, driving the gear 1 5 to separate from the meshing state of the lower ring rack 8, and continuously moving in the direction of the upper ring rack 11. After moving a certain distance, the L-shaped plate 15 engages with the upper ring rack 11. At this time, the electric push rod 6 stops moving, and the upper ring rack 11 starts to rotate, and the gear 1 5 is driven by the L-shaped plate 15 to rotate along the upper ring rack 11. The rotation of the gear 1 5 drives the threaded rod 4 to rotate along the upper ring rack 11. The rotation of the threaded rod 4 drives the sleeve 3 and the clamping block 2 to rotate along the upper ring rack 11, and the clamping block 2 moves to After the appropriate position, the upper ring rack 11 stops rotating, and the telescopic end of the electric push rod 6 contracts, driving the gear 15, the threaded rod 4, the sleeve 3 and the clamping block 2 to move to the position of the lower ring rack 8. When the gear 15 moves to the position to mesh with the lower ring rack 8, the electric push rod 6 stops moving. Then, the other groups of electric push rods 6 work and adjust the position of the clamping block 2 to clamp the pipe fitting. When the positions of all the clamping blocks 2 are adjusted, the motor 14 works to drive the threaded rod 4 to rotate, driving the lower ring rack 8 to rotate. The rotation of the lower ring rack 8 drives all the gears 15 meshing with the lower ring rack 8 to rotate. The rotating gear 15 drives the threaded rod 4 to rotate. The rotation of the threaded rod 4 drives the sleeve 3 to slide out on the threaded rod 4, thereby driving the clamping block 2 to move in the direction of the pipe fitting and clamp the pipe fitting. In addition, the tooth surfaces of the gear 15 and the lower ring rack 8 in this scheme can be helical tooth surfaces, the gear 15 is a bevel gear, and the lower ring rack 8 is a bevel gear ring.

[0025] like Figure 2 and Figure 3 As shown, there are two sets of electric push rods 6 and two sets of spring rods 7, which are arranged along the radial direction of the shell 1. The two end surfaces of the inner wall of the shell 1 are respectively provided with an upper annular groove 12 that is slidably connected to the cylinder body of the spring rod 7 and a lower annular groove 9 that is slidably connected to the cylinder body of the electric push rod 6.

[0026] By adopting this technical solution, by setting the number of each group of electric push rods 6 and each group of spring rods 7 to two, the structure of the threaded rod 4 rotatably installed between the electric push rod 6 and the spring rod 7 is made more stable, and the threaded rod 4 is not easily damaged during operation. In addition, by setting the upper annular groove 12 and the lower annular groove 9, the spring rod 7 and the electric push rod 6 can slide in the upper annular groove 12 and the lower annular groove 9 when they revolve, which can limit the spring rod 7 and the electric push rod 6.

[0027] like Figure 4As shown, the outer side surface of the upper ring rack 11 is provided with an annular straight tooth surface 10, which is engaged with the straight tooth surface 10. A motor 14 is also fixed to one end surface of the housing 1, and the main shaft of the motor 14 on the end surface of the housing 1 is fixed to the end surface of the gear 2 13.

[0028] With this technical solution, the motor 14 drives the gear 2 13 to rotate. Since the gear 2 13 is engaged with the spur tooth surface 10, the rotation of the gear 2 13 can drive the upper ring rack 11 to rotate. In addition, by setting the motor 14 to drive the gear 2 13 to rotate, when the L-shaped plate 15 is engaged with the upper ring rack 11, the upper ring rack 11 can continuously adjust the position of its own tooth groove, which facilitates the engagement of the L-shaped plate 15 with the upper ring rack 11.

[0029] Working principle: When clamping pipes of different shapes, the position of the clamping block 2 needs to be adjusted. Therefore, one group of electric push rods 6 is extended to drive gear 15 to move in the direction of the upper ring rack 11 until the L-shaped plate 15 is engaged with the upper ring rack 11. The electric push rod 6 stops moving, and the motor 14 located on the end face of the shell 1 works to drive the upper ring rack 11 to rotate, thereby driving the position of gear 15 to move. The position movement of gear 15 drives the position movement of the threaded rod 4, and the threaded rod 4 drives the sleeve 3 and the clamping block 2 to move. After the clamping block 2 moves to the appropriate position, the upper ring rack 11 stops rotating, and the telescopic end of the electric push rod 6 contracts, driving gear 15, threaded rod 4, sleeve 3 and clamping block 2 to move to the position of the lower ring rack 8. When the position of gear 15 moves to engage with the lower ring rack 8, the electric push rod 6 stops moving. After that, the other groups of electric push rods 6 are worked and the above process is repeated to adjust the position of the other clamping blocks 2.

[0030] The wiring diagram of the electric push rod 6 and the motor 14 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the electric push rod 6 and the motor 14 are not explained in detail.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fixture for a pipe flattening machine, comprising a housing (1), a plurality of threaded rods (4), sleeves (3) on the threaded rods (4), and a clamping block (2) on the sleeves (3), characterized in that: The inner sides of both ends of the housing (1) are slidably connected to a plurality of groups of spring rods (7) corresponding to the positions and numbers of the plurality of threaded rods (4) and a plurality of groups of electric push rods (6) corresponding to the positions and numbers of the plurality of spring rods (7). Any group of spring rods (7) and the electric push rods (6) revolve around the central axis of the housing (1). One end face of the inner wall of the housing (1) is rotatably connected to an upper ring rack (11) having the same center as the plurality of groups of spring rods (7), and the other end face of the inner wall is rotatably mounted with a lower ring rack (8) having the same center as the plurality of groups of electric push rods (6). Any group of spring rods (7) The telescopic end is integrally formed with the telescopic end of the corresponding group of electric push rods (6); the threaded rod (4) is rotatably mounted between the telescopic ends of the corresponding group of spring rods (7); one end of the threaded rod (4) mounting sleeve (3) passes through the spring rod (7) and extends toward the central axis of the housing (1); one end of the sleeve (3) is plugged into the telescopic end of the adjacent spring rod (7); a gear (5) for meshing with the lower ring rack (8) is fixedly mounted on the threaded rod (4); and an L-shaped plate (15) for meshing with the tooth surface of the upper ring rack (11) is fixedly mounted on the telescopic end of any group of spring rods (7).

2. The fixture for the pipe flattening machine according to claim 1, characterized in that: The number of each set of electric push rods (6) and the number of each set of spring rods (7) are two and they are arranged along the radius direction of the housing (1). The two end surfaces of the inner wall of the housing (1) are respectively provided with an upper annular groove (12) slidably connected to the cylinder body of the spring rod (7) and a lower annular groove (9) slidably connected to the cylinder body of the electric push rod (6).

3. The fixture for the pipe flattening machine according to claim 1, characterized in that: A motor (14) is fixedly mounted on one of the electric push rods (6), and a main shaft of the motor (14) is fixed to a threaded rod (4) at a corresponding position.

4. The fixture for the pipe flattening machine according to claim 1, characterized in that: An annular straight tooth surface (10) is provided on the outer side surface of the upper ring rack (11), and the straight tooth surface (10) is meshed with a second gear (13).

5. The fixture for the pipe flattening machine according to claim 1, characterized in that: A motor (14) is also fixed to one end face of the housing (1), and a main shaft of the motor (14) on the end face of the housing (1) is fixed to an end face of the second gear (13).

6. The fixture for the pipe flattening machine according to claim 1, characterized in that: The threaded rod (4) is threadedly connected to the sleeve (3), and the other end of the sleeve (3) is fixedly connected to the clamping block (2).

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