Anti-skid clamping device for cold-drawn pipe machining

Abstract

The utility model relates to the field of cold-drawn pipe, especially a kind of anti-skid clamping device for cold-drawn pipe processing, including base, the top outer wall center of base is equipped with sliding slot, and fixed structure is slidably connected at the sliding slot of base, the outer wall both ends of one side of base are equipped with mounting seat, and drive structure is equipped in mounting seat and base;Fixed structure includes fixed cylinder, protrusion one and protrusion two being equidistantly arranged at the outer wall both ends of fixed cylinder, mounting groove one being equidistantly arranged in the inner wall of one end of fixed cylinder and mounting groove two being equipped in the inner wall of fixed cylinder located protrusion one and protrusion two.The utility model applies force to the outer wall of pipeline in the opposite direction of clamping block and clamping plate, increases the friction of clamping plate and clamping block by the extrusion of rubber strip, clamps pipeline in the inside of fixed cylinder, avoids destructive clamping, prevents the intensity of clamping end from falling due to destructive clamping.

Description

Technical Field

[0001] This utility model relates to the field of cold-drawn tube technology, and in particular to an anti-slip clamping device for cold-drawn tube processing. Background Technology

[0002] Cold-drawn steel pipe is a type of steel pipe, classified according to different production processes, and is distinct from hot-rolled (expanded) pipe. It is produced through multiple cold-drawing processes during the expansion of the diameter of the blank or raw material pipe, typically on a single-chain or double-chain cold-drawing machine with a capacity of 0.5–100T.

[0003] During cold drawing, steel pipes undergo plastic deformation under the action of force as they pass through a mold of a certain shape and size. The drawing methods in production can be roughly divided into three types: diameter reduction drawing, outer wall reduction drawing, and inner wall reduction drawing. During cold drawing, the steel pipe undergoes corresponding deformation under the action of tensile force, normal pressure, and friction. It mostly goes through three stages: diameter reduction, wall reduction, and sizing. Furthermore, corresponding stresses are generated within the deformation zone, with axial stress being tensile and radial and circumferential stresses being compressive. During the drawing process, the metal is in a state of uniaxial tensile and biaxial compressive stress; these are the basic mechanical characteristics of the cold-drawn pipe deformation process.

[0004] In the current cold-drawn tube processing, hydraulic clamps are used to destructively clamp one end of the tube. After clamping one end of the tube with hydraulic clamps, the tube is pulled through the mold to change the size and shape of the tube. However, this processing method results in damage to one end of the cold-drawn tube, which needs to be cut off. At the same time, destructive clamping can easily cause the clamped end of the tube to break during the processing. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems and deficiencies by proposing an anti-slip clamping device for cold-drawn pipe processing: by applying force to the outer wall of the pipe through the clamping block and the clamping plate in opposite directions, the friction between the clamping plate and the clamping block is increased by the compression of the rubber strip, thereby clamping the pipe inside the fixed cylinder, avoiding destructive clamping, and preventing the decrease in the strength of the clamping end caused by destructive clamping.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cold-drawn tube processing anti-slip clamping device includes a base. A sliding groove is formed at the center of the top outer wall of the base, and a fixing structure is slidably connected to the base at the sliding groove. Mounting seats are installed at both ends of one side outer wall of the base, and a driving structure is provided in the mounting seats and the base. The fixing structure includes a fixing cylinder, a protrusion 1 and a protrusion 2 equidistantly arranged at both ends of the outer wall of the fixing cylinder, a mounting groove 1 equidistantly opened at one end of the inner wall of the fixing cylinder, and a mounting groove 2 opened at the protrusion 1 and protrusion 2 on the inner wall of the fixing cylinder. The driving structure includes a driving groove opened at the center of the sliding groove of the base, a driving screw rotatably connected to the inner wall of the driving groove, and a driving block threadedly connected to the outer wall of the driving screw.

[0008] Preferably, a speed reducer is installed at the center of the outer wall of one end of the base, and the output end of the speed reducer is connected to one end of the drive screw. The drive block is slidably connected to the inner wall of the drive groove, and the bottom outer wall of the fixed cylinder is installed on the top of the drive block.

[0009] Preferably, a hydraulic cylinder is installed at the center of each mounting base, and push grooves are provided at both ends of the top outer wall of the base at the hydraulic cylinder.

[0010] Preferably, the inner wall of the fixed cylinder is provided with a hidden groove at the second mounting groove, and a push rod is installed on the inner wall of the second mounting groove. A clamping plate is installed on the outer wall of one end of the push rod, and the outer wall of the clamping plate is slidably connected to the inner wall of the hidden groove.

[0011] Preferably, a push rod 2 is installed on the inner wall of the mounting groove 1, and a clamping block is installed at one end of the push rod 2. The outer wall of the clamping block and the inner outer wall of the clamping plate are provided with anti-slip grooves distributed at equal intervals, and rubber strips are provided in the anti-slip grooves.

[0012] Preferably, support rods are installed at both ends of one outer wall of the fixed cylinder, and one end of the support rod is rotatably connected to a support wheel, which is rolled on the top outer wall of the base.

[0013] Preferably, push rods are installed on the outer walls of both ends of the fixed cylinder, and one end of the push rod is slidably connected in the push groove, while one end of the hydraulic cylinder is installed on the outer wall of the push rod.

[0014] Preferably, the push rod one, push rod two, hydraulic cylinder and reducer unit are connected to a switch via wires, and the switch is connected to a power source via wires.

[0015] The beneficial effects of this utility model are as follows:

[0016] The clamping block and clamping plate apply force to the outer wall of the pipe in opposite directions. After the rubber strip is squeezed, the friction between the clamping plate and the clamping block is increased, clamping the pipe inside the fixed cylinder, avoiding destructive clamping and preventing the decrease in the strength of the clamping end caused by destructive clamping.

[0017] The start-up reducer unit drives the drive screw to rotate. After the drive screw rotates, it drives the fixed cylinder to move in the sliding groove on the base through the drive block. The hydraulic push rod starts the fixed cylinder to slide on the base through the push rod, which facilitates driving and improves driving stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the unfolded cross-sectional structure of the fixed cylinder of the anti-slip clamping device for cold-drawn tube processing proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the fixed cylinder structure of an anti-slip clamping device for cold-drawn tube processing proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded structure of the drive structure of the anti-slip clamping device for cold-drawn tube processing proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of an anti-slip clamping device for cold-drawn tube processing proposed in this utility model.

[0022] In the diagram: 1. Base, 2. Mounting seat, 3. Drive structure, 4. Fixing structure, 5. Sliding groove, 6. Drive groove, 7. Drive screw, 8. Reducer unit, 9. Hydraulic cylinder, 10. Drive block, 11. Push groove, 12. Fixing cylinder, 13. Protrusion 1, 14. Protrusion 2, 15. Mounting groove 1, 16. Mounting groove 2, 17. Hidden groove, 18. Push rod 1, 19. Clamping plate, 20. Push rod 2, 21. Clamping block, 22. Anti-slip groove, 23. Rubber strip, 24. Push rod, 25. Support rod, 26. Support wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1:

[0024] Reference Figure 3-4 As shown, an anti-slip clamping device for cold-drawn tube processing includes a base 1. A sliding groove 5 is provided at the center of the top outer wall of the base 1. A fixing structure 4 is slidably connected to the base 1 at the sliding groove 5. Mounting seats 2 are installed at both ends of one side outer wall of the base 1. A driving structure 3 is provided in the mounting seats 2 and the base 1.

[0025] The drive structure 3 includes a drive groove 6 located at the center of the sliding groove 5 on the base 1, a drive screw 7 rotatably connected to the inner wall of the drive groove 6, and a drive block 10 threadedly connected to the outer wall of the drive screw 7. The fixed cylinder 12 is slidably connected to the push groove 11, the drive groove 6 and the sliding groove 5 through the drive block 10 and the push rod 24 respectively, to ensure the stability of the sliding.

[0026] A speed reducer 8 is installed at the center of the outer wall of one end of the base 1. The output end of the speed reducer 8 is connected to one end of the drive screw 7. The drive block 10 is slidably connected to the inner wall of the drive groove 6. The bottom outer wall of the fixed cylinder 12 is installed on the top of the drive block 10. The speed reducer 8 includes a speed reducer and a motor, which increases the driving torque and the force that drives the drive screw 7 and the drive block 10 to move, making it easier to pull the fixed cylinder 12 to move.

[0027] Hydraulic cylinders 9 are installed at the center of each mounting base 2, and push grooves 11 are opened at both ends of the top outer wall of the base 1 at the hydraulic cylinders 9.

[0028] Push rods 24 are installed on the outer walls of both ends of the fixed cylinder 12. One end of the push rod 24 is slidably connected in the push groove 11. One end of the hydraulic cylinder 9 is installed on the outer wall of the push rod 24. The reducer unit 8 is started to drive the drive screw 7 to rotate. After the drive screw 7 rotates, it drives the fixed cylinder 12 to move in the sliding groove 5 on the base 1 through the drive block 10. The hydraulic cylinder 9 is started to push the fixed cylinder 12 to slide on the base 1 through the push rod 24, stretching the pipe and passing the pipe through the mold for processing. Example 2:

[0029] Reference Figure 1-2 and Figure 4 As shown, the fixing structure 4 includes a fixing cylinder 12, protrusion 13 and protrusion 2 14 equidistantly arranged at both ends of the outer wall of the fixing cylinder 12, mounting groove 15 equidistantly opened on the inner wall of one end of the fixing cylinder 12, and mounting groove 2 16 opened on the inner wall of the fixing cylinder 12 at the protrusion 13 and protrusion 2 14. The clamping block 21 and the clamping plate 19 apply force to the outer wall of the pipe in opposite directions. After the rubber strip 23 is squeezed, the friction between the clamping plate 19 and the clamping block 21 is increased, and the pipe is clamped inside the fixing cylinder 12 to avoid destructive clamping and prevent the clamping end strength from decreasing due to destructive clamping.

[0030] The inner wall of the fixed cylinder 12 is provided with a hidden groove 17 at the second mounting groove 16. The inner wall of the second mounting groove 16 is provided with a push rod 18. A clamping plate 19 is installed on the outer wall of one end of the push rod 18. The outer wall of the clamping plate 19 is slidably connected to the inner wall of the hidden groove 17.

[0031] Push rod 20 is installed on the inner wall of mounting groove 15. A clamping block 21 is installed on one end of push rod 20. Anti-slip grooves 22 are provided at equal intervals on the outer wall of clamping block 21 and the inner outer wall of clamping plate 19. Rubber strips 23 are provided in the anti-slip grooves 22. The clamping block 21 and clamping plate 19 on push rod 18 and push rod 20 respectively fit against the inner wall and outer wall of the pipe. They exert force in opposite directions to cooperate with rubber strips 23, clamping the pipe without damaging it, which is convenient for use.

[0032] Support rods 25 are installed at both ends of one side outer wall of the fixed cylinder 12. One end of the support rod 25 is rotatably connected to a support wheel 26. The support wheel 26 is rolled on the top outer wall of the base 1. The support rods 25 and support wheels 26 on both sides of the fixed cylinder 12 provide diagonal support for the fixed cylinder 12. The push rod 24 is slidably connected in the push groove 11 to improve the stability of the fixed cylinder 12.

[0033] Push rod 18, push rod 20, hydraulic cylinder 9 and reducer 8 are connected to a switch via wires, and the switch is connected to a power source via wires.

[0034] Working principle: In use, the mold required for cold drawing tube is installed at one end of the base 1. The reducer 8 and hydraulic cylinder 9 are started to move the fixed cylinder 12 to one end of the mold, so that one end of the tube is inserted into the inner wall of the fixed cylinder 12. The push rod 20 is started to move the clamping blocks 21 away from each other. The outer wall of the clamping block 21 fits against the inner wall of the tube as the push rod 20 is driven. Then the push rod 18 in the protrusion 13 and protrusion 24 is started. The push rod 18 moves the clamping plate 19 down from the hidden groove 17 to contact the outer wall of the tube. The clamping block 21 and the clamping plate 19 are opposite each other. Force is applied to the outer wall of the pipe. After the rubber strip 23 is squeezed, the friction between the clamping plate 19 and the clamping block 21 is increased, clamping the pipe inside the fixed cylinder 12. This avoids destructive clamping and prevents the clamping end from weakening due to damaged clamping. The reducer 8 is started to drive the drive screw 7 to rotate. After the drive screw 7 rotates, it drives the fixed cylinder 12 to move in the sliding groove 5 on the base 1 through the drive block 10. The hydraulic cylinder 9 is started to push the fixed cylinder 12 to slide on the base 1 through the push rod 24, stretching the pipe and passing it through the mold for processing.

[0035] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A non-slip clamping device for cold-drawn tube processing, comprising a base (1), characterized in that, A sliding groove (5) is provided at the center of the top outer wall of the base (1), and a fixed structure (4) is slidably connected to the base (1) at the sliding groove (5). Mounting seats (2) are installed at both ends of one side outer wall of the base (1), and a driving structure (3) is provided in the mounting seat (2) and the base (1). The fixing structure (4) includes a fixing cylinder (12), a protrusion 1 (13) and a protrusion 2 (14) equidistantly located at both ends of the outer wall of the fixing cylinder (12), an installation groove 1 (15) equidistantly located on the inner wall of one end of the fixing cylinder (12), and an installation groove 2 (16) located on the inner wall of the fixing cylinder (12) at the protrusion 1 (13) and the protrusion 2 (14). The drive structure (3) includes a drive groove (6) located at the center of the sliding groove (5) on the base (1), a drive screw (7) rotatably connected to the inner wall of the drive groove (6), and a drive block (10) threadedly connected to the outer wall of the drive screw (7).

2. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, A speed reducer (8) is installed at the center of the outer wall of one end of the base (1), and the output end of the speed reducer (8) is connected to one end of the drive screw (7). The drive block (10) is slidably connected to the inner wall of the drive groove (6), and the bottom outer wall of the fixed cylinder (12) is installed on the top of the drive block (10).

3. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, Hydraulic cylinders (9) are installed at the center of each mounting base (2), and push grooves (11) are opened at both ends of the top outer wall of the base (1) at the hydraulic cylinders (9).

4. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, The inner wall of the fixed cylinder (12) is provided with a hidden groove (17) at the second mounting groove (16), and the inner wall of the second mounting groove (16) is provided with a push rod (18). A clamping plate (19) is installed on the outer wall of one end of the push rod (18), and the outer wall of the clamping plate (19) is slidably connected to the inner wall of the hidden groove (17).

5. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, The inner wall of the mounting groove (15) is equipped with a push rod (20), and a clamping block (21) is installed at one end of the push rod (20). The outer wall of the clamping block (21) and the inner outer wall of the clamping plate (19) are provided with anti-slip grooves (22) distributed at equal intervals. The anti-slip grooves (22) are provided with rubber strips (23).

6. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, Support rods (25) are installed at both ends of one side of the outer wall of the fixed cylinder (12), and one end of the support rod (25) is rotatably connected to a support wheel (26), which is rolled on the top outer wall of the base (1).

7. The anti-slip clamping device for cold-drawn tube processing according to claim 1, characterized in that, Both ends of the fixed cylinder (12) are equipped with push rods (24), and one end of the push rod (24) is slidably connected in the push groove (11), and one end of the hydraulic cylinder (9) is installed on the outer wall of the push rod (24).

8. The anti-slip clamping device for cold-drawn tube processing according to claim 4, characterized in that, The push rod one (18), push rod two (20), hydraulic cylinder (9) and reducer unit (8) are connected to the switch via wires, and the switch is connected to the power supply via wires.

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