Clamp for machining ball screw nut

Abstract

The utility model relates to a clamp for machining a ball screw nut, and belongs to the technical field of nut clamps. The device mainly comprises a base, a moving rod, a cross beam frame, a clamping device, a lead screw nut, a rack, a gear, an air cylinder and a lead screw, a sliding groove is formed in the base, the lead screw is rotatably installed on one side of the base in an axial limiting mode through a bearing, one end of the lead screw is fixedly connected with the moving rod, the moving rod is slidably connected into the sliding groove, and the cross beam frame is installed at the top of the moving rod. The clamping device is rotationally installed on the cross beam frame, the lead screw nut is fixed through the clamping device, the air cylinders are installed on the two sides of the cross beam frame respectively, the racks are fixedly connected with one ends of the air cylinders, the gears are installed on the clamping device, and the air cylinders are in meshing transmission with the gears through the racks. The problem that the lead screw nut needs to be clamped and fixed for multiple times when being polished is solved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of clamp, concretely relates to a ball screw nut machining clamp. BACKGROUND

[0002] The screw nut is also called screw rod nut, is used for connecting multiple parts on the screw rod, or is used as a fastener to fix the screw to the position, the screw nut has different types and sizes, depends on its use and the size and shape of the screw rod, when the screw nut is machined, the clamp is needed to fix the screw nut. In the prior art, when the screw nut is polished, the screw nut is first clamped and fixed and then polished, after polishing, the staff needs to release the fixing of the screw nut, then turns over the nut, clamps and fixes it again for polishing, the screw nut needs to be clamped and fixed for many times each time, and the screw nut is generally small, so the clamping and fixing is inconvenient, a lot of time is consumed in clamping and fixing, and the polishing efficiency is reduced. SUMMARY

[0003] In order to overcome the problem that the clamping force of the clamp in the background art is uneven, so that the nut may be deformed under uneven stress, the utility model provides a ball screw nut machining clamp, which can realize high-precision positioning, uniform and stable clamping of the ball screw nut, effectively improve the machining precision and efficiency, and is suitable for ball screw nuts of various specifications.

[0004] To achieve the above object, the utility model is through the following technical scheme realizes: a ball screw nut machining clamp mainly includes base, movable rod, cross beam frame, clamping device, screw nut, rack, gear, air cylinder, screw rod, the base is set with sliding slot on, and the screw rod is rotatably axially limitedly installed on one side of the base through the bearing, one end of the screw rod is fixedly connected with the movable rod, the movable rod is slidably connected in the sliding slot, the cross beam frame is installed at the top of the movable rod, the clamping device is rotatably installed on the cross beam frame, the screw nut is fixed through the clamping device, the air cylinder is installed on both sides of the cross beam frame respectively, the rack is fixedly connected with one end of the air cylinder, the gear is installed on the clamping device, and the air cylinder is driven through the meshing of the rack and the gear.

[0005] Further, the clamping assembly includes a connecting rod and a clamping block, the connecting rod is rotatably connected with the cross beam frame, and the clamping block is welded at the end of the connecting rod.

[0006] Further, the clamping block is made of magnetic material.

[0007] Further, the movable rod includes a first movable rod and a second movable rod, the first movable rod is slidably installed in the sliding slot, and the second movable rod is fixedly installed at the top of the base.

[0008] Further, the cross beam frame is provided with four waist-shaped holes, and the rack is supported and moved in the waist-shaped holes through the supporting rods.

[0009] The utility model discloses beneficial effect: in the utility model, the cylinder of cross beam frame both sides is through rack and pinion gearing transmission on the gear of clamping device, can drive clamping device rotation to rotate in the same direction with clamping device, screw nut can realize overturning, solved the problem that needs to be fixedly clamped multiple times when polishing screw nut, improved work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the three-dimensional schematic view of the utility model;

[0011] Figure 2 It is Figure 1 The local enlarged schematic view of A in the figure;

[0012] Figure 3 It is Figure 1 The local enlarged schematic view of B in the figure.

[0013] In the figure: 1, base; 2, moving rod; 201, moving rod one; 202, moving rod two; 3, cross beam frame; 4, clamping device; 401, connecting rod; 402, clamping block; 5, screw nut; 6, rack; 7, gear; 8, cylinder; 9, sliding slot; 10, limit hole; 11, screw rod. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and beneficial effect of the utility model more clear, the preferred embodiment of the utility model will be explained in detail below, to facilitate the understanding of technical personnel.

[0015] The utility model discloses a ball screw nut processing clamp, one kind of ball screw nut processing clamp mainly includes base 1, moving rod 2, crossbeam frame 3, clamping device 4, screw nut 5, rack 6, gear 7, cylinder 8, screw rod 11, the base 1 is set with the sliding slot 9, and the base 1 one side is rotatable axial limit installation with screw rod 11 through the bearing, the screw rod 11 one end is fixedly connected with moving rod 2, the moving rod 2 is connected in the sliding slot 9, the crossbeam frame 3 is installed at moving rod 2 top, the clamping device 4 is rotatably installed on crossbeam frame 3, the screw nut 5 is fixed through clamping device 4, the cylinder 8 is installed at crossbeam frame 3 both sides respectively, the rack 6 is fixedly connected with cylinder 8 one end, the gear 7 is installed on clamping device 4, and the cylinder 8 is engaged transmission through rack 6 and gear 7, and the cylinder 8 is engaged transmission through rack 6 and the gear 7 on clamping device 4 on crossbeam frame 3 both sides, so as to can drive clamping device 4 to rotate, and clamping device 4 rotates to the same direction simultaneously, and screw nut 5 can realize overturning, and the utility model solves the problem that the nut needs to be clamped and fixed for many times when grinding screw nut 5, and improves work efficiency.

[0016] The clamping device 4 includes a connecting rod 401 and a clamping block 402, the connecting rod 401 is rotatably connected with the crossbeam frame 3, and the clamping block 402 is welded at the end of the connecting rod 401; the clamping block 402 can better fit the two ends of the screw nut 5 and will not cause scratches on the two ends of the screw nut 5.

[0017] The clamping block 402 is made of magnetic material; the magnetic material can better fix the screw nut 5 and improve stability.

[0018] The moving rod 2 includes a first moving rod 201 and a second moving rod 202, the first moving rod 201 is slidably installed in the sliding slot, and the second moving rod 202 is fixed at the top of the base 1; the screw nut 5 is magnetically attracted to the clamping device 4 on the second moving rod 202, the screw nut 5 is clamped and fixed by adjusting the first moving rod 201, the structure is suitable for nuts of different sizes, and the use range of the utility model is increased.

[0019] Four waist-shaped holes 10 are formed in the crossbeam frame 3, the rack 6 is movably supported in the waist-shaped holes 10 through a supporting rod, the rack 6 reciprocates within a certain range, so that the clamping device 4 and the screw nut 5 are turned back and forth.

[0020] Working process: in the specific working process, first the screw nut 5 is attracted on the clamping device 4 on the moving rod two 202, then the position of the moving rod one 201 is adjusted by rotating the lead screw 11, the moving rod one 201 can move in the sliding groove, can be applicable to different size screw nut 5, after fixing and clamping, the grinding work can be started, when one side of the screw nut 5 is ground, the air cylinders 8 on both sides of the beam frame 3 need to be started simultaneously, the air cylinders 8 are telescopic and drive the rack 6 to make certain reciprocating motion in the range of the limiting hole 10, so that the screw nut 5 is automatically turned over; the utility model solves the problem that the screw nut needs to be clamped and fixed for many times each time, improves the work efficiency.

[0021] Finally, it is pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the utility model and not to limit, although the utility model has been described in detail through the above preferred embodiments, but those skilled in the art should understand that various changes can be made in form and details without departing from the range defined by the utility model claims.

Claims

1. A jig for machining a ball screw nut, characterized by: The ball screw nut machining clamp comprises a base (1), a moving rod (2), a cross beam frame (3), a clamping device (4), a screw nut (5), a rack (6), a gear (7), a cylinder (8), a screw rod (11), a sliding groove (9) is formed in the base (1), the screw rod (11) is rotatably and axially limitedly installed on one side of the base (1) through a bearing, one end of the screw rod (11) is fixedly connected with the moving rod (2), the moving rod (2) is slidably connected in the sliding groove (9), the cross beam frame (3) is installed on the top of the moving rod (2), the clamping device (4) is rotatably installed on the cross beam frame (3), the screw nut (5) is fixed through the clamping device (4), the cylinders (8) are respectively installed on the two sides of the cross beam frame (3), the rack (6) is fixedly connected with one end of the cylinder (8), the gear (7) is installed on the clamping device (4), and the cylinder (8) is meshed and driven through the rack (6) and the gear (7).

2. The jig for machining a ball screw nut according to claim 1, characterized in that: The clamping device (4) comprises a connecting rod (401) and a clamping block (402), the connecting rod (401) is rotatably connected with the cross beam frame (3), and the clamping block (402) is welded at the end of the connecting rod (401).

3. The jig for machining a ball screw nut according to claim 2, characterized in that: The clamping block (402) is made of magnetic material.

4. The jig for machining a ball screw nut according to Claim 1, wherein: The moving rod (2) comprises a moving rod one (201) and a moving rod two (202), the moving rod one (201) is slidably installed in the sliding groove (9), and the moving rod two (202) is fixedly installed on the top of the base (1).

5. The jig for machining a ball screw nut according to Claim 1, wherein: Four waist-shaped holes (10) are formed in the cross beam frame (3), and the rack (6) is movably supported in the waist-shaped hole (10) through a supporting rod.

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