Clamping head

Abstract

A clamping head comprises an upper disc, the upper disc is provided with a plurality of supporting plates, downward extending plates are installed on the supporting plates, a plurality of inner push rods are arranged on the downward extending plates in a penetrating mode, clamping blocks are arranged on the inner push rods, inner push plates are arranged on the inner push rods, outward extending protruding plates are arranged on the outer walls of the inner push plates, inclined holes are formed in the outward extending protruding plates, the upper ends of the inclined holes extend outwards in an inclined mode, and pull rods are arranged in the inclined holes in a penetrating mode. A pull arm is arranged on the pull rod and penetrates through the supporting plate, a convex part is arranged on the pull arm, an upper pull disc is arranged on the convex part, an upper extension column is arranged on the upper pull disc, and a hanging ring is arranged at the upper end of the upper extension column. According to the cylindrical workpiece transfer device, cylindrical workpieces can be conveniently transferred, and safety can be ensured during transfer.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer and transportation, in particular to a clamping head. Background Art

[0002] After the cylindrical workpiece is processed and transferred, it is often bound by a cable sleeve and then transferred. However, in this transfer method, the fixation between the cable sleeve and the workpiece is achieved through the friction of the cable sleeve on the workpiece and the pressure generated by the cable sleeve on the workpiece during hoisting. This method has poor stability and safety. Moreover, if the workpiece is placed vertically, it will further increase the transfer difficulty and reduce the safety during transfer. Summary of the Utility Model

[0003] The utility model provides a clamping head to solve the above-mentioned deficiencies of the prior art, improve the safety and stability during the transfer of the cylindrical workpiece, and facilitate the fixation of the cylindrical workpiece, with strong practicability.

[0004] In order to achieve the purpose of the utility model, the following technology is proposed:

[0005] A clamping head includes an upper plate. A plurality of support plates are arranged on the outer periphery of the upper plate. A lower extension plate is installed on the support plates. A plurality of inner push rods penetrate through the lower end of the lower extension plate. A clamping block is arranged at the inner end of the inner push rod. An inner push plate is arranged at the outer end of the inner push rod. An outer extension convex plate is arranged on the outer wall of the inner push plate. An inclined hole is formed in the outer extension convex plate. The upper end of the inclined hole extends obliquely outwards. A pull rod penetrates through the inclined hole. A pull arm is arranged on the pull rod. The pull arm penetrates through the support plate. A convex part is arranged at the upper end of the pull arm. An upper pull plate is arranged at the inner end of the convex part. An upper extension column is arranged on the upper pull plate. A hanging ring is arranged at the upper end of the upper extension column. When the workpiece is placed vertically, the clamping head is transferred to the upper end of the cylindrical workpiece, and then the clamping block is sleeved on the cylindrical workpiece. Then, the pulling lock of the hoist is connected to the hanging ring, and then the hanging ring is pulled upwards. When the hanging ring moves upwards, it will pull the pull rod upwards through the pull arm. When the pull rod moves upwards, it will act on the inclined hole, and make the clamping block act on the outer wall of the cylindrical workpiece, and clamp the cylindrical workpiece. Then, under the pulling, the cylindrical workpiece can be moved upwards for a certain distance.

[0006] The lower end of the lower extension plate is bent with an inner extension convex plate. A pair of spring pins penetrate through the inner extension convex plate. A restoring spring is sleeved on the upper end of the spring pin. A rotating head is arranged at the lower end of the spring pin. The rotating head has a T-shaped structure. A rotating convex plate is rotatably arranged at the lower end of the rotating head. A limiting claw is arranged at the lower end of the rotating convex plate. The length direction of the limiting claw is perpendicular to the length direction of the rotating convex plate. After the workpiece is lifted off the ground, the operator rotates the limiting claw so that the inner end of the limiting claw acts on the lower end of the workpiece, thereby supporting the workpiece.

[0007] The lower end of the downward extension plate is rotatably provided with a lower top rotating plate, and the lower end of the lower top rotating plate acts on the upper wall of the outer side end of the limit claw. Through the provided lower top rotating plate, its lower end can act on the outer side end of the limit claw to prevent the limit claw from rotating during transfer, thereby ensuring safety during transfer.

[0008] Furthermore, the inner wall of the clamping block is of a concave arc structure to expand the clamping area, thereby enhancing the clamping effect.

[0009] Furthermore, a pull pin is passed through the upper pull plate, and the setting of the pull pin plays a guiding role in the upward pull of the upper pull plate.

[0010] Furthermore, a pair of limit holes are opened on the support plate, a connecting screw rod is passed through the limit holes, the lower end of the connecting screw rod is arranged at the upper end of the downward extension plate, and a limit nut is arranged at the upper end of the connecting screw rod. A rectangular hole is opened on the support plate, and the pull arm passes through the rectangular hole. A pair of kidney-shaped holes are opened on the convex part, a vertical through rod is passed through the kidney-shaped holes, the lower end of the vertical through rod is installed at the upper end of the pull arm, and a second limit nut is arranged at the upper end of the vertical through rod, and the second limit nut is located on the upper side of the convex part. Through the provided structures such as the kidney-shaped holes, it is convenient to adjust the clamping block appropriately according to the diameter of the cylindrical workpiece, thereby expanding the applicable range.

[0011] Furthermore, a handle rod is arranged at the outer side end of the limit claw, and an included angle exists between the length direction of the handle rod and the length direction of the limit claw. Through the provided handle rod, it is convenient for the operator to rotate the limit claw.

[0012] Furthermore, a holding rod is arranged at the upper end of the lower top rotating plate to facilitate the rotation of the lower top rotating plate.

[0013] Furthermore, a limit clamping plate is arranged on the upper wall of the outer side end of the limit claw, and the limit clamping plate is located inside the lower top rotating plate. Through the limiting action of the limit clamping plate, the limiting effect on the limit claw is enhanced.

[0014] The advantages of the above technical solutions are as follows:

[0015] The utility model is convenient for transferring cylindrical workpieces and can ensure safety during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.

[0017] Figure 1 The three-dimensional structure diagram of one of the embodiments is shown.

[0018] Figure 2 The enlarged view at A is shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] AsFigures 1 - 2 As shown in the figure, a clamping head includes an upper plate 1. A plurality of support plates 10 are provided on the outer periphery of the upper plate 1. A downward-extending plate 30 is installed on the support plates 10. A plurality of inner push rods 31 penetrate through the lower end of the downward-extending plate 30. A clamping block 32 is provided at the inner end of the inner push rod 31. The inner wall of the clamping block 32 is an inwardly concave arc structure. An inner push plate 34 is provided at the outer end of the inner push rod 31. An outwardly extending convex plate 35 is provided on the outer wall of the inner push plate 34. An inclined hole 36 is provided in the outwardly extending convex plate 35. The upper end of the inclined hole 36 extends obliquely outward. A pull rod 37 penetrates through the inclined hole 36. A pull arm 38 is provided on the pull rod 37. The pull arm 38 passes through the support plate 10. A convex portion 43 is provided at the upper end of the pull arm 38. An upper pull plate 40 is provided at the inner end of the convex portion 43. An upward-extending column 41 is provided on the upper pull plate 40. A hanging ring 42 is provided at the upper end of the upward-extending column 41. A pull pin 4 penetrates through the upper pull plate 40. The lower end of the pull pin 4 is provided on the upper plate 1.

[0020] An inwardly extending convex plate 8 is bent at the lower end of the downward-extending plate 30. A pair of spring pins 5 penetrate through the inwardly extending convex plate 8. A restoring spring 50 is sleeved on the upper end of the spring pin 5. A rotating head 52 is provided at the lower end of the spring pin 5. The rotating head 52 has a T-shaped structure. A rotating convex plate 53 is rotatably provided at the lower end of the rotating head 52. A limiting claw 54 is provided at the lower end of the rotating convex plate 53. The length direction of the limiting claw 54 is perpendicular to the length direction of the rotating convex plate 53. A lower top rotating plate 59 is rotatably provided at the lower end of the downward-extending plate 30. The lower end of the lower top rotating plate 59 acts on the upper wall of the outer end of the limiting claw 54. A handle rod 57 is provided at the outer end of the limiting claw 54. The length direction of the handle rod 57 forms an angle with the length direction of the limiting claw 54. A holding rod 60 is provided at the upper end of the lower top rotating plate 59. A limiting card plate 58 is provided on the upper wall of the outer end of the limiting claw 54. The limiting card plate 58 is located inside the lower top rotating plate 59.

[0021] During the operation of this embodiment, the operator transfers the clamping head to a vertically placed cylindrical workpiece.

[0022] Then the operator hooks the hook on the hoist onto the hanging ring 42.

[0023] Then, the hanging ring 42 is pulled upward by the hoist, so that the hanging ring 42 moves upward. When the hanging ring 42 moves upward, it will pull the pull arm 38 upward. When the pull arm 38 moves upward, it will cause the pull rod 37 to act on the inclined hole 36, so that the clamping block 32 moves inward, and the workpiece is positioned by the clamping block 32. Then the cylindrical workpiece moves upward for a certain distance. Then the operator rotates the handle rod 57, so that the inner end of the limiting claw 54 acts on the lower end of the workpiece. Then the lower top rotating plate 59 is rotated, so that the lower end of the lower top rotating plate 59 acts on the outer end of the limiting claw 54. Then the transfer operation of the workpiece is carried out.

[0024] In some embodiments, a pair of limiting holes 11 are formed in the support plate 10. A connecting screw rod 3 is inserted into the limiting holes 11. The lower end of the connecting screw rod 3 is arranged at the upper end of the downward extending plate 30. A limiting nut is arranged at the upper end of the connecting screw rod 3. A rectangular hole 12 is formed in the support plate 10. The pulling arm 38 is inserted into the rectangular hole 12. A pair of kidney-shaped holes 44 are formed in the convex part 43. A vertical through rod 45 is inserted into the kidney-shaped holes 44. The lower end of the vertical through rod 45 is installed at the upper end of the pulling arm 38. A second limiting nut is arranged at the upper end of the vertical through rod 45. The second limiting nut is located on the upper side of the convex part 43.

[0025] When operating this embodiment, the operator can adjust the positions of the downward extending plate 30 and the pulling arm 38 according to the diameter of the cylindrical workpiece, and lock and fix their positions after the adjustment is completed.

[0026] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A clamping head, characterized in that: The invention comprises an upper plate (1), wherein a plurality of support plates (10) are arranged on the outer periphery of the upper plate (1), a lower extension plate (30) is mounted on the support plate (10), a plurality of inner push rods (31) are passed through the lower end of the lower extension plate (30), a clamping block (32) is arranged on the inner side end of the inner push rod (31), an inner push plate (34) is arranged on the outer side end of the inner push rod (31), an outer extension convex plate (35) is arranged on the outer wall of the inner push plate (34), and an inclined hole is opened on the outer extension convex plate (35) (36), the upper end of the inclined hole (36) extends outwardly at an angle, a pull rod (37) is passed through the inclined hole (36), a pull arm (38) is provided on the pull rod (37), the pull arm (38) passes through the support plate (10), a convex portion (43) is provided at the upper end of the pull arm (38), an upper pull plate (40) is provided at the inner side end of the convex portion (43), an upper extension column (41) is provided on the upper pull plate (40), and a hanging ring (42) is provided at the upper end of the upper extension column (41); The lower end of the downward extending plate (30) is bent to form an inward extending convex plate (8), a pair of spring pins (5) are inserted on the inward extending convex plate (8), the upper end of the spring pin (5) is sleeved with a restoring spring (50), the lower end of the spring pin (5) is provided with a rotating head (52), the rotating head (52) is in a T-shaped structure, the lower end of the rotating head (52) is rotatably provided with a rotating convex plate (53), the lower end of the rotating convex plate (53) is provided with a limiting claw (54), and the length direction of the limiting claw (54) is perpendicular to the length direction of the rotating convex plate (53); A lower top rotating plate (59) is rotatably provided at the lower end of the lower extending plate (30), and the lower end of the lower top rotating plate (59) acts on the upper wall of the outer end of the limiting claw (54).

2. The clamping head according to claim 1, characterized in that: The inner wall of the clamping block (32) is a concave arc-shaped structure.

3. The clamping head according to claim 1, characterized in that: A pull pin (4) is provided on the upper pull plate (40), and the lower end of the pull pin (4) is arranged on the upper plate (1).

4. The clamping head according to claim 1, characterized in that: A pair of limiting holes (11) are formed on the support plate (10), a connecting screw (3) is inserted into the limiting holes (11), the lower end of the connecting screw (3) is arranged on the upper end of the lower extension plate (30), and a limiting nut is provided on the upper end of the connecting screw (3); A rectangular hole (12) is formed on the support plate (10), and the pull arm (38) is inserted into the rectangular hole (12); A pair of waist-shaped holes (44) are formed on the convex portion (43), a vertical through rod (45) is passed through the waist-shaped holes (44), the lower end of the vertical through rod (45) is mounted on the upper end of the pull arm (38), and a second limiting nut is provided at the upper end of the vertical through rod (45), and the second limiting nut is located on the upper side of the convex portion (43).

5. The clamping head according to claim 1, characterized in that: A handle bar (57) is provided at the outer end of the limiting claw (54), and an angle is formed between the length direction of the handle bar (57) and the length direction of the limiting claw (54).

6. The clamping head according to claim 1, characterized in that: A holding rod (60) is provided at the upper end of the lower top rotating plate (59).

7. The clamping head according to claim 1, characterized in that: A limiting clamping plate (58) is provided on the upper wall of the outer end of the limiting claw (54), and the limiting clamping plate (58) is located on the inner side of the lower top rotating plate (59).

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