Positioning tool for grinding outer circle of oil cylinder barrel

Abstract

The positioning tool comprises a rotating shaft, a limiting ring, a guide face, a shaft face, a tensioning face, an avoiding section and a locking section are sequentially arranged on the rotating shaft in the length direction of the rotating shaft, the oil cylinder barrel is arranged on the rotating shaft in a sleeved mode, one side of the limiting ring abuts against an opening in one side of the oil cylinder barrel, and the other side of the limiting ring abuts against an opening in the other side of the oil cylinder barrel. The guiding face is in clearance fit with the inner wall of the oil cylinder barrel, the diameter of the avoiding section is smaller than that of the guiding face, a tensioning taper sleeve is connected to the avoiding section in a sliding mode and comprises a sleeve body, a conical head is arranged at one end of the sleeve body, the tensioning face is an outer conical face, the inner wall of the conical head is an inner conical face abutting against the outer conical face, and the inner wall of the conical head is an inner conical face abutting against the outer conical face. The locking section is in threaded connection with a locking nut, one side of the locking nut abuts against the tensioning taper sleeve, and the outer wall of the taper head tightly abuts against the inner wall of the oil cylinder barrel. The oil cylinder barrel can be effectively positioned, interference to a grinding wheel during grinding can be avoided, machining is facilitated, and the outer circle grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder barrel processing, in particular to an oil cylinder barrel outer circle grinding positioning tool. Background Art

[0002] During the production of the oil cylinder, the oil cylinder barrel needs to be processed, including cutting, grinding, etc. After the inner hole of the oil cylinder barrel is processed, the two ends of the oil cylinder barrel will be positioned and driven to rotate by the cooperation of the rotating shaft and the top seat, and then the outer circle of the oil cylinder barrel will be ground by the grinding wheel moving left and right.

[0003] During the positioning process, the top seat uses its top cone surface to clamp in the inner hole of the cylinder barrel, and the remaining part of the cone surface is always located on one side of the cylinder barrel, which will cause interference when the grinding wheel is grinding, restricting the left and right movement of the grinding wheel, making the edge of the cylinder barrel more difficult to process. Utility Model Content

[0004] The utility model aims to provide a positioning tool for grinding the outer circle of an oil cylinder barrel, which can effectively position the oil cylinder barrel and avoid interference with the grinding wheel during grinding, thereby facilitating processing and improving the efficiency of grinding the outer circle.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cylinder outer circle grinding positioning tool, including a rotating shaft, the rotating shaft is provided with a limit ring, a guide front surface, an axial surface, a tightening surface, an avoidance section and a locking section in sequence along its length direction, the cylinder sleeve is arranged on the rotating shaft, one side of the limit ring abuts with one side opening of the cylinder, the guide front surface is clearance-matched with the inner wall of the cylinder, the diameter of the avoidance section is smaller than the diameter of the guide front surface and a tightening cone sleeve is slidably connected thereon, the tightening cone sleeve comprises a sleeve body, one end of the sleeve body is provided with a cone head, the tightening surface is an outer cone surface, the inner wall of the cone head is an inner cone surface abutting with the outer cone surface, a locking nut is threadedly connected on the locking section, one side of the locking nut abuts with the tightening cone sleeve and the outer wall of the cone head tightly abuts with the inner wall of the cylinder.

[0006] A further improvement of the utility model is that an annular wall is provided at one end of the locking nut, a first ring buckle is provided inside the annular wall, a clamping ring is provided at the other end of the sleeve, the clamping ring includes a ring body and a second ring buckle arranged on one side of the ring body and cooperating with the first ring buckle, the ring body abuts against the annular wall and the second ring buckle is clamped with the first ring buckle.

[0007] A further improved solution of the utility model is that the sleeve body, the cone head and the clamping ring are integrally arranged, and at least two slits are arranged on the wall along the circumferential direction.

[0008] A further improved solution of the utility model is that the slit opens from one axial end of the cone head or the clamping ring, extends toward the other end, and does not penetrate the other end.

[0009] A further improvement of the utility model is that the limit ring, the guide surface, the shaft surface, the tensioning surface, the tensioning cone sleeve and the locking nut are coaxially arranged.

[0010] A further improvement of the present invention is that the diameter of the axial surface is smaller than the diameter of the guide surface.

[0011] A further improvement of the present invention is that the diameter of the outer wall of the cone head is greater than the diameter of the sleeve body.

[0012] The beneficial effects of the utility model are:

[0013] The utility model cooperates with the rotating shaft, the tightening cone sleeve and the locking nut, and utilizes the inner cone surface of the cone head to cooperate with the tightening surface of the rotating shaft to position the oil cylinder from the inside. Compared with the prior art that directly clamps with the cone surface of the top, the utility model will not produce a remaining part with a diameter larger than the diameter of the oil cylinder on one side of the oil cylinder, thus avoiding interference with the grinding wheel during grinding, facilitating processing, and improving the efficiency of grinding the outer circle.

[0014] The utility model has a locking nut threadedly connected to the locking section, and the clamping degree is adjusted by adjusting the position of the locking nut, so that the coaxiality of the oil cylinder barrel and the rotating shaft can be ensured, and the fixing is firm and the disassembly is flexible. The locking nut and the tightening cone sleeve are connected by the first ring buckle and the second ring buckle, and the abutment surface of the locking nut and the tightening cone sleeve is increased by the abutment of the ring wall and the ring body, thereby improving the fixing effect.

[0015] The utility model provides a plurality of slits on the tensioning cone sleeve, which can help release the stress concentration on the tensioning cone sleeve, especially at the root, reduce the stress caused by the load, and improve the durability and reliability of the parts. When the tensioning cone sleeve and the locking nut are disassembled and assembled, the tensioning cone sleeve can be temporarily deformed by hand pressure to facilitate the clamping or separation of the first ring buckle and the second ring buckle, which is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the connection between the utility model and the oil cylinder.

[0018] Figure 3 It is a front view cross-sectional schematic diagram of the utility model.

[0019] In the figure, 1-rotating shaft, 2-limiting ring, 3-guide front surface, 4-shaft surface, 5-tensioning surface, 6-avoidance section, 7-locking section, 8-tensioning cone sleeve, 9-cone head, 10-locking nut, 11-ring wall, 12-first ring buckle, 13-ring body, 14-second ring buckle, 15-slit, 16-cylinder barrel. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1: Combination Figures 1 to 3 It can be seen that a cylinder outer circle positioning tool comprises a rotating shaft 1, on which a limit ring 2, a guide front surface 3, an axial surface 4, a tightening surface 5, an avoidance section 6 and a locking section 7 are arranged in sequence along its length direction. The cylinder sleeve is arranged on the rotating shaft 1, one side of the limit ring 2 abuts against an opening on one side of the cylinder, the guide front surface 3 is clearance-matched with the inner wall of the cylinder, the diameter of the avoidance section 6 is smaller than the diameter of the guide front surface 3 and a tightening cone sleeve 8 is slidably connected thereon, the tightening cone sleeve 8 comprises a sleeve body, one end of the sleeve body is provided with a cone head 9, the tightening surface 5 is an outer cone surface, the inner wall of the cone head 9 is an inner cone surface abutting against the outer cone surface, a locking nut 10 is threadedly connected to the locking section 7, one side of the locking nut 10 abuts against the tightening cone sleeve 8 and the outer wall of the cone head 9 tightly abuts against the inner wall of the cylinder.

[0022] One end of the locking nut 10 is provided with an annular wall 11, and a first ring buckle 12 is provided inside the annular wall 11. The other end of the sleeve is provided with a clamping ring, which includes a ring body 13 and a second ring buckle 14 arranged on one side of the ring body 13 and matched with the first ring buckle 12. The ring body 13 abuts against the annular wall 11 and the second ring buckle 14 is clamped with the first ring buckle 12.

[0023] The sleeve body, the cone head 9 and the clamping ring are integrally arranged, and at least two slits 15 are arranged on the wall along the circumferential direction. Preferably, there are two groups of slits 15, one group of slits 15 opens from one axial end of the cone head 9, extends toward the other end, and does not penetrate the other end; the other group of slits 15 opens from one axial end of the clamping ring, extends toward the other end, and does not penetrate the other end.

[0024] A stop hole is arranged at the end of the cutting slit, and the stop hole is communicated with the cutting slit.

[0025] The limiting ring 2, the guide surface 3, the shaft surface 4, the tightening surface 5, the tightening cone sleeve 8 and the locking nut 10 are coaxially arranged. The diameter of the shaft surface 4 is smaller than the diameter of the guide surface 3. The diameter of the outer wall of the cone head 9 is larger than the diameter of the sleeve body.

[0026] The working principle of a cylinder outer circle positioning tool provided by the utility model is as follows: when in use, the cylinder is sleeved on the rotating shaft 1, one end of the cylinder is in contact with the limit ring 2, the inner wall of the cylinder is in contact with the guide surface 3, and then the tensioning cone sleeve 8 is slidably connected to the avoidance section 6, and the locking nut 10 is installed. The locking nut 10 is tightened to push the tensioning cone sleeve 8 into the gap between the cylinder and the rotating shaft 1, and the inner conical surface of the cone head 9 of the tensioning cone sleeve 8 is in contact with the tensioning surface 5 of the rotating shaft 1 until the outer peripheral surface of the cone head is in contact with the inner wall of the cylinder, thereby completing the positioning of the cylinder.

[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and the accompanying drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A cylinder outer circle grinding positioning tool, comprising a rotating shaft (1), characterized in that: The rotating shaft (1) is provided with a limit ring (2), a guide surface (3), an axial surface (4), a tightening surface (5), an avoidance section (6) and a locking section (7) in sequence along its length direction. The oil cylinder is sleeved on the rotating shaft (1). One side of the limit ring (2) abuts against an opening on one side of the oil cylinder. The guide surface (3) is clearance-matched with the inner wall of the oil cylinder. The diameter of the avoidance section (6) is smaller than the diameter of the guide surface (3) and a tightening cone sleeve (8) is slidably connected thereto. The tightening cone sleeve (8) comprises a sleeve body. A cone head (9) is provided at one end of the sleeve body. The tightening surface (5) is an outer cone surface. The inner wall of the cone head (9) is an inner cone surface abutting against the outer cone surface. A locking nut (10) is threadedly connected to the locking section (7). One side of the locking nut (10) abuts against the tightening cone sleeve (8) and the outer wall of the cone head (9) tightly abuts against the inner wall of the oil cylinder.

2. The cylinder outer circle grinding positioning tool according to claim 1, characterized in that: An annular wall (11) is provided at one end of the locking nut (10), a first ring buckle (12) is provided inside the annular wall (11), a clamping ring is provided at the other end of the sleeve body, the clamping ring comprises an annular body (13) and a second ring buckle (14) provided on one side of the annular body (13) and matching with the first ring buckle (12), the annular body (13) abuts against the annular wall (11) and the second ring buckle (14) is clamped with the first ring buckle (12).

3. The oil cylinder outer circle grinding positioning tool according to claim 2, characterized in that: The sleeve body, the cone head (9) and the clamping ring are integrally arranged, and at least two slits (15) are arranged on the wall along the circumferential direction.

4. The oil cylinder outer circle grinding positioning tool according to claim 3, characterized in that: The slit (15) opens from one axial end of the cone head (9) or the clamping ring, extends toward the other end, and does not penetrate the other end.

5. The oil cylinder outer circle grinding positioning tool according to claim 1, characterized in that: The limiting ring (2), the guide surface (3), the shaft surface (4), the tightening surface (5), the tightening cone sleeve (8) and the locking nut (10) are coaxially arranged.

6. The oil cylinder outer circle grinding positioning tool according to claim 1, characterized in that: The diameter of the axial surface (4) is smaller than the diameter of the guide surface (3).

7. The oil cylinder outer circle grinding positioning tool according to claim 1, characterized in that: The diameter of the outer wall of the cone head (9) is greater than the diameter of the sleeve body.

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