Nut machining and positioning device

Abstract

The utility model relates to the technical field of nut machining, in particular to a nut machining positioning device which comprises a workbench, the workbench is in a circular truncated cone shape, six rectangular grooves which are annularly distributed around the center axis of the workbench at equal intervals are formed in the table top of the workbench, a guide rod is fixed to the two ends of each rectangular groove, and a movable block is arranged on the outer side of each guide rod in a sleeved mode. The bottom of the workbench is provided with a centering assembly enabling all the moving blocks to move in a centering mode, and the tops of the moving blocks are provided with clamping structures. Wherein the clamping structure comprises a concave frame, the concave frame is fixed to the movable block, a square hole is formed in one end of the concave frame, and a square rod is arranged in the square hole; the centering mechanism comprises an electric telescopic rod and a movable plate fixedly installed at the telescopic end of the electric telescopic rod, and an electric cylinder of the electric telescopic rod is fixed to the middle position of the bottom of the workbench. According to the utility model, hexagon nuts of various specifications can be clamped and positioned, so that the application range is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, in particular to a nut processing positioning device. Background Art

[0002] Nuts are parts that tightly connect mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner threads. Depending on the different mechanical equipment or parts, the nuts and bolts at the top of the tight connection are also different, so there are many different specifications of nuts and bolts. In the workshop, when producing nuts, the blank will first be manufactured into a hexagonal outer contour of the nut, then clamped and positioned, and a hole will be pierced in the middle of the nut blank and threaded.

[0003] The current clamping and positioning tools are mostly designed based on a certain type of nut, which makes the versatility of such clamping and positioning tools poor. Utility Model Content

[0004] Based on the deficiencies in the prior art mentioned in the above background technology, the present invention provides a nut processing and positioning device.

[0005] The present invention overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A nut processing and positioning device includes a workbench, the workbench being in the shape of a truncated cone, the workbench surface being provided with six rectangular grooves distributed equidistantly around its central axis, a guide rod being fixed at each end of the rectangular groove, and a movable block being sleeved on the outer side of the guide rod, a centering assembly being provided at the bottom of the workbench for centering each movable block, and a clamping structure being provided at the top of each movable block;

[0007] Wherein, the clamping structure includes a concave frame, the concave frame is fixed to the moving block, one end of the concave frame is provided with a square hole, and a square rod is provided inside the square hole.

[0008] As a further solution of the present invention: the centering component includes an electric telescopic rod and a movable plate fixedly installed on the telescopic end of the electric push rod, the electric cylinder of the electric telescopic rod is fixed at the middle position of the bottom of the workbench, and the movable plate and the movable block are installed with a connecting rod for rotation together.

[0009] As a further solution of the present invention: a rotating hole is provided at the other end of the concave frame, a spline sleeve is rotatably installed inside the rotating hole, a thread is provided on the outer side of the spline sleeve, a threaded hole is provided at one end of the square rod, and the outer side of the spline sleeve is installed in the threaded hole through a thread.

[0010] As a further solution of the present invention: the table top of the workbench is provided with a rotating assembly that enables each spline sleeve to rotate synchronously.

[0011] As a further solution of the present invention: the table top of the workbench is fixed with a circular ring plate arranged coaxially therewith, a bevel gear ring is rotatably installed on the outer side of the circular ring plate, a spline shaft is slidably arranged inside the spline sleeve, a fixed plate is rotatably installed on one end of the spline shaft, the bottom of the fixed plate is fixed on the workbench, and a driven bevel gear arranged coaxially therewith is fixed on the outer side of the spline shaft, and the driven bevel gear is meshed with the bevel gear ring.

[0012] As a further solution of the present invention: a pulley is rotatably mounted on one end of the square rod.

[0013] As a further solution of the present invention: a plurality of columns are fixed to the bottom of the workbench.

[0014] After adopting the above structure, the utility model has the following advantages compared with the existing technology:

[0015] The utility model can clamp and position hexagonal nuts of various specifications, thereby expanding the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model from the first perspective.

[0017] Figure 2 This is a schematic diagram of the overall second structural view of the present invention.

[0018] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0019] Figure 4 This is a schematic diagram of the clamping structure of the present utility model.

[0020] In the figure: 1. Workbench; 2. Clamping structure; 3. Moving block; 4. Connecting rod; 5. Moving plate; 6. Electric telescopic rod; 7. Rectangular groove; 8. Circular ring plate; 9. Bevel gear ring; 10. Guide rod; 11. Concave frame; 12. Square rod; 13. Pulley; 14. Spline sleeve; 15. Spline shaft; 16. Driven bevel gear; 17. Fixed plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In the embodiment of the utility model, the nut processing and positioning device includes a workbench 1, which is in the shape of a truncated cone. The workbench 1 has six rectangular grooves 7 distributed in an annular manner with equal distances around its central axis on its surface. A guide rod 10 is fixed at each end of the rectangular groove 7, and a moving block 3 is sleeved on the outer side of the guide rod 10. A centering component for centering each moving block 3 is provided at the bottom of the workbench 1, and a clamping structure 2 is provided on the top of the moving block 3.

[0023] The clamping structure 2 includes a concave frame 11, which is fixed to the moving block 3. A square hole is opened at one end of the concave frame 11, and a square rod 12 is arranged inside the square hole.

[0024] In the present invention, the hexagonal nut to be clamped is placed in the middle part of the workbench 1, and the centering assembly causes each moving block 3 to move in a centering manner. The upper rods 12 of the concave frames 11 on the six moving blocks 3 respectively contact the six surfaces of the hexagonal nut, thereby achieving centering clamping.

[0025] Specifically, the centering assembly includes an electric telescopic rod 6 and a movable plate 5 fixedly mounted on the telescopic end of the electric push rod. The electric cylinder of the electric telescopic rod 6 is fixed at the middle position of the bottom of the workbench 1. The movable plate 5 and the movable block 3 are rotated together with a connecting rod 4.

[0026] In the present invention, the electric telescopic rod 6 is extended, the movable plate 5 moves downward, and the movable plate 5 pulls each movable block 3 toward the middle of the workbench 1 through each connecting rod 4.

[0027] Specifically, a rotating hole is provided at the other end of the concave frame 11, and a spline sleeve 14 is rotatably installed inside the rotating hole. A thread is provided on the outer side of the spline sleeve 14. A threaded hole is provided at one end of the square rod 12, and the outer side of the spline sleeve 14 is installed in the threaded hole through a thread. The table top of the workbench 1 is provided with a rotating assembly that makes each spline sleeve 14 rotate synchronously. A circular ring plate 8 coaxially arranged therewith is fixed to the table top of the workbench 1. A bevel gear ring 9 is rotatably installed on the outer side of the circular ring plate 8. A spline shaft 15 is slidably provided inside the spline sleeve 14, and a fixed plate 17 is rotatably installed on one end of the spline shaft 15. The bottom of the fixed plate 17 is fixed on the workbench 1, and a driven bevel gear 16 coaxially arranged therewith is fixed on the outer side of the spline shaft 15. The driven bevel gear 16 is meshed with the bevel gear ring 9.

[0028] In the present utility model, when the moving block 3 contacts one end of the rectangular groove 7, one end of the square rod 12 does not contact the hexagonal nut. At this time, the bevel gear ring 9 is rotated, and the bevel gear causes the driven bevel gear 16 meshing with it to rotate, and the spline shaft 15 fixed to the driven bevel gear 16 rotates. The spline shaft 15 causes the spline sleeve 14 to rotate, and the spline shaft 15 causes the square rod 12 to slide along the square hole through threaded transmission until the square rod 12 contacts the hexagonal nut.

[0029] Specifically, a pulley 13 is rotatably mounted on one end of the square rod 12. When the square rod 12 contacts the outer side surface of the hexagonal nut, sliding occurs. The pulley 13 is arranged to reduce friction damage by rolling instead of sliding.

[0030] Specifically, a plurality of columns are fixed on the bottom of the workbench 1 .

[0031] Working principle: Place the hexagonal nut to be clamped in the middle part of the workbench 1, extend the electric telescopic rod 6, and move the movable plate 5 downward. The movable plate 5 pulls each movable block 3 to the middle of the workbench 1 through each connecting rod 4. The upper rods 12 of the concave frames 11 on the six movable blocks 3 are in contact with the six faces of the hexagonal nut respectively, thereby achieving centering clamping; when the movable block 3 contacts one end of the rectangular groove 7, one end of the square rod 12 does not contact the hexagonal nut. At this time, the bevel gear ring 9 is rotated, and the bevel gear causes the driven bevel gear 16 meshing with it to rotate, and the spline shaft 15 fixed to the driven bevel gear 16 rotates, and the spline shaft 15 causes the spline sleeve 14 to rotate. The spline shaft 15 causes the square rod 12 to slide along the square hole through threaded transmission until the square rod 12 contacts the hexagonal nut.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

Claims

1. A nut processing and positioning device, comprising a workbench (1), characterized in that: The workbench (1) is in the shape of a truncated cone. The workbench (1) is provided with six rectangular grooves (7) distributed in an equidistant annular pattern around its central axis on its surface. A guide rod (10) is fixed at both ends of the rectangular groove (7). A moving block (3) is sleeved on the outer side of the guide rod (10). A centering assembly for enabling each moving block (3) to move in a centering manner is provided at the bottom of the workbench (1). A clamping structure (2) is provided at the top of the moving block (3). The clamping structure (2) comprises a concave frame (11), the concave frame (11) is fixed to the moving block (3), one end of the concave frame (11) is provided with a square hole, and a square rod (12) is provided inside the square hole.

2. The nut processing and positioning device according to claim 1, characterized in that: The centering assembly comprises an electric telescopic rod (6) and a movable plate (5) fixedly mounted on the telescopic end of the electric push rod; the electric cylinder of the electric telescopic rod (6) is fixed at the middle position of the bottom of the workbench (1); and a connecting rod (4) is mounted on the movable plate (5) and the movable block (3) so as to rotate together.

3. The nut processing and positioning device according to claim 1, characterized in that: The other end of the concave frame (11) is provided with a rotation hole, a spline sleeve (14) is rotatably installed inside the rotation hole, the outer side of the spline sleeve (14) is provided with a thread, and one end of the square rod (12) is provided with a threaded hole, and the outer side of the spline sleeve (14) is installed in the threaded hole through a thread.

4. The nut processing and positioning device according to claim 3, characterized in that: The table top of the workbench (1) is provided with a rotating assembly that enables each spline sleeve (14) to rotate synchronously.

5. The nut processing and positioning device according to claim 4, characterized in that: The table top of the workbench (1) is fixed with a circular ring plate (8) arranged coaxially therewith, a bevel gear ring (9) is rotatably mounted on the outer side of the circular ring plate (8), a spline shaft (15) is slidably mounted inside the spline sleeve (14), a fixed plate (17) is rotatably mounted on one end of the spline shaft (15), the bottom of the fixed plate (17) is fixed on the workbench (1), and a driven bevel gear (16) arranged coaxially therewith is fixed on the outer side of the spline shaft (15), and the driven bevel gear (16) is meshed with the bevel gear ring (9).

6. The nut processing and positioning device according to claim 5, characterized in that: A pulley (13) is rotatably mounted on one end of the square rod (12).

7. The nut processing and positioning device according to claim 1, characterized in that: A plurality of columns are fixed on the bottom of the workbench (1).

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