Oil cylinder inner hole turning tool for hydraulic oil cylinder production

Abstract

The utility model discloses an oil cylinder inner hole turning tool for hydraulic oil cylinder production, which belongs to the technical field of inner hole rolling cutters, and comprises a cylindrical mandrel body, a cylindrical inner hole rolling cutter and a cylindrical outer hole rolling cutter, the supporting sleeve is in a circular tube shape and is arranged on the mandrel body in a sleeving mode, a plurality of receding grooves distributed in an annular array mode are formed in the supporting sleeve, two annular grooves are formed in the surface of the supporting sleeve, and the annular grooves communicate with the receding grooves; the multiple roller pin bodies are connected into the multiple receding grooves in a sliding mode, and the surfaces of the roller pin bodies abut against the conical face; the two groups of limiting rings are respectively mounted in the two annular grooves; according to the rolling cutter, the limiting ring is detached from the annular groove, limitation of the rolling needle body in the receding groove can be relieved, then the rolling needle body can be rapidly taken out of the receding groove, the interior of the rolling cutter can be maintained without detaching the whole rolling cutter, and maintenance operation is easy and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of inner hole rolling cutters, in particular to an inner hole turning cutter for hydraulic cylinder production. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. The inner hole processing of the hydraulic cylinder requires the use of a rolling cutter. The rolling cutter uses the principle of mechanical extrusion to obtain a mirror-like smooth metal surface. A mechanical non-cutting plastic processing method, the rolling cutter can be installed on a lathe for use.

[0003] At present, when the inner hole rolling cutter is used to maintain the roller needle and other parts, the entire inner hole rolling cutter needs to be disassembled, which makes the maintenance operation of the inner hole rolling cutter complicated. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and to provide a hydraulic cylinder inner hole turning tool for the production of hydraulic cylinders.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a hydraulic cylinder inner hole turning tool for hydraulic cylinder production, comprising:

[0006] The mandrel body is a cylinder, and the end of the mandrel body is provided with a tapered surface;

[0007] A support sleeve, which is in the shape of a circular tube and is sleeved on the mandrel body, the support sleeve is provided with a plurality of air-avoiding grooves arranged in an annular array, and the surface of the support sleeve is provided with two annular grooves, the annular grooves being connected to the plurality of air-avoiding grooves;

[0008] A plurality of needle roller bodies are slidably connected in the plurality of the escape grooves, and the surfaces of the needle roller bodies abut against the tapered surface;

[0009] Two sets of limiting rings are respectively installed in the two annular grooves.

[0010] As a further description of the above technical solution:

[0011] The two opposite ends of the needle roller body are both hinged with sliders, and the inner wall of the air-avoiding groove is provided with a sliding groove matching the sliding groove, and the sliding groove is slidably connected in the sliding groove.

[0012] As a further description of the above technical solution:

[0013] The width of the slide groove is equal to the width of the slide block.

[0014] As a further description of the above technical solution:

[0015] The annular groove is connected to a plurality of the sliding grooves, and the limiting ring is composed of two semicircular rings, which are connected by bolts.

[0016] As a further description of the above technical solution:

[0017] The outer diameter of the limiting ring is not greater than the outer diameter of the supporting sleeve.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, the restriction of the needle roller body in the avoidance groove can be released by removing the limit ring from the annular groove, and the needle roller body can be quickly taken out of the avoidance groove. The inside of the rolling cutter can be maintained without disassembling the entire rolling cutter, and the maintenance operation is simple and convenient.

[0020] 2. In the present invention, the two semicircular rings can be taken out from the annular groove by removing the bolts, thereby removing the restriction on the needle roller body, so that the needle roller body can be quickly disassembled for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of a cylinder inner hole turning tool used in the production of hydraulic cylinders.

[0022] Figure 2 This is a cross-sectional view of a cylinder inner hole turning tool used in the production of hydraulic cylinders.

[0023] Figure 3 for Figure 2 A partial enlarged view of part A.

[0024] Figure 4 This is an exploded view of a cylinder inner hole turning tool used in the production of hydraulic cylinders.

[0025] Legend:

[0026] 1. Mandrel body; 2. Conical surface; 3. Support sleeve; 4. Air-avoiding groove; 5. Annular groove; 6. Needle roller body; 7. Limiting ring; 8. Sliding block; 9. Sliding groove; 10. Semicircular ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4The utility model provides a technical solution: a hydraulic cylinder inner hole turning tool for hydraulic cylinder production, comprising:

[0029] The mandrel body 1 is a cylinder, and a conical surface 2 is provided at the end of the mandrel body 1;

[0030] A support sleeve 3 is in the shape of a circular tube and is sleeved on the mandrel body 1. The support sleeve 3 is provided with a plurality of air-avoiding grooves 4 arranged in an annular array. Two annular grooves 5 are provided on the surface of the support sleeve 3. The annular grooves 5 are connected to the plurality of air-avoiding grooves 4.

[0031] A plurality of needle roller bodies 6 are slidably connected in the plurality of the escape grooves 4, and the surfaces of the needle roller bodies 6 are against the tapered surface 2;

[0032] Two sets of limiting rings 7, which are respectively installed in the two annular grooves 5;

[0033] The two opposite ends of the needle roller body 6 are both hinged with sliders 8, and the inner wall of the avoidance groove 4 is provided with a slide groove 9 matching the slider 8, and the slider 8 is slidably connected in the slide groove 9;

[0034] The width of the slide groove 9 is equal to the width of the slider 8, so as to ensure that the needle roller body 6 slides stably during adjustment;

[0035] The annular groove 5 is connected to a plurality of the chute grooves 9, and the limiting ring 7 is composed of two semicircular rings 10, which are connected by bolts. The two semicircular rings 10 can be taken out of the annular groove 5 by removing the bolts, thereby releasing the restriction on the needle roller body 6, so that the needle roller body 6 can be quickly disassembled for maintenance;

[0036] The outer diameter of the limiting ring 7 is not greater than the outer diameter of the supporting sleeve 3, so as to ensure that the limiting ring 7 does not interfere with the inner hole during the inner hole processing.

[0037] Working principle: First, when in use, the rotation of the core shaft body 1 and the support sleeve 3 drives the needle roller body 6 to roll the inner hole. Secondly, adjust the position of the core shaft body 1 in the support sleeve 3, and the tapered surface 2 squeezes the needle roller body 6 to slide along the air avoidance groove 4, thereby adjusting the height of the needle roller body 6 protruding from the support sleeve 3. Then, when the entire rolling cutter needs maintenance, remove the bolts to remove the two semicircular rings 10 from the annular groove 5, thereby releasing the restriction on the needle roller body 6, so that the needle roller body 6 can be taken out of the slide groove 9 and the air avoidance groove 4 together with the slider 8. Finally, the interior of the rolling cutter is maintained.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic cylinder inner hole turning tool for hydraulic cylinder production, characterized in that: include: A mandrel body (1) which is a cylinder, and a conical surface (2) is provided at the end of the mandrel body (1); A support sleeve (3) is in the shape of a circular tube and is sleeved on the mandrel body (1); a plurality of air-avoiding grooves (4) arranged in an annular array are provided on the support sleeve (3); two annular grooves (5) are provided on the surface of the support sleeve (3); the annular grooves (5) are connected to the plurality of air-avoiding grooves (4); A plurality of needle roller bodies (6) which are slidably connected in the plurality of the escape grooves (4), and the surfaces of the needle roller bodies (6) are against the conical surface (2); Two sets of limiting rings (7) are respectively installed in the two annular grooves (5).

2. The hydraulic cylinder inner hole turning tool for hydraulic cylinder production according to claim 1, characterized in that: The two opposite ends of the needle roller body (6) are both hinged with sliders (8), and the inner wall of the avoidance groove (4) is provided with a slide groove (9) matching the slide groove (8), and the slide groove (8) is slidably connected in the slide groove (9).

3. The hydraulic cylinder inner hole turning tool for hydraulic cylinder production according to claim 2, characterized in that: The width of the slide groove (9) is equal to the width of the slide block (8).

4. The hydraulic cylinder inner hole turning tool for hydraulic cylinder production according to claim 3, characterized in that: The annular groove (5) is connected to a plurality of the sliding grooves (9); the limiting ring (7) is composed of two semicircular rings (10); and the two semicircular rings (10) are connected by bolts.

5. The hydraulic cylinder inner hole turning tool for hydraulic cylinder production according to claim 4, characterized in that: The outer diameter of the limiting ring (7) is no greater than the outer diameter of the supporting sleeve (3).

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