Symmetrical end face lathe machining tool

Abstract

The utility model relates to a symmetrical end face lathe machining tool which comprises a first turning tool, a second turning tool, a third turning tool and a fourth turning tool. The second turning tool is installed on the lathe tool turret through a locking assembly, the second turning tool and the first turning tool are symmetrically arranged, the second turning tool and the second end face of the workpiece are correspondingly arranged, and the distance between the second turning tool and the first turning tool is the same as the thickness of the workpiece; and the positioning shaft is installed on the lathe and has taper, and the workpiece is arranged on the positioning shaft in a sleeving mode in the axial direction of the positioning shaft. The fixture can be machined by a common lathe, and is high in universality; the two cutters are used for machining at the same time, the purpose of forming lathing is achieved, and the consistency of the thickness size of products during batch machining can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing and manufacturing, in particular to a symmetrical end face lathe processing tool. Background Art

[0002] The shaft sleeve is a crucial component in a gear pump, with four of them in a typical gear pump. It not only supports and precisely positions the rotating components within the pump, helping to maintain the position of the gear shaft and ensuring proper clearance between the gear teeth, but also acts as a seal, preventing oil from flowing from the high-pressure chamber to the low-pressure chamber. Therefore, the parallelism of the sleeve's end faces and its thickness are crucial.

[0003] During general processing, the two end faces are machined by turning the machine, and finally the parallelism of the two end faces and the thickness of the part are guaranteed by plane grinding. This processing method can meet the processing requirements of parts, but it restricts the improvement of production efficiency for large-scale production. Utility Model Content

[0004] In order to solve the problems of the prior art, the utility model provides a forming turning technology for processing the two end faces of the shaft sleeve on a lathe, so that the two end faces of the shaft sleeve can be processed and formed in one step, the consistency of thickness size during batch production can be controlled, and the production efficiency can be improved.

[0005] The specific technical solution is as follows: A symmetrical end face lathe processing tooling, comprising:

[0006] A first turning tool is mounted on the lathe turret via a locking assembly and is located on one side of the workpiece and corresponding to the first end surface of the workpiece;

[0007] a second turning tool, mounted on the lathe turret via a locking assembly and symmetrically arranged with the first turning tool, the second turning tool being arranged corresponding to the second end surface of the workpiece, and a spacing between the second turning tool and the first turning tool being the same as the thickness of the workpiece;

[0008] The positioning shaft is installed on the lathe and has a taper. The workpiece is sleeved on the positioning shaft along the axial direction of the positioning shaft.

[0009] In some embodiments, a thickness block is provided between the first turning tool and the second turning tool, and the thickness of the thickness block is the same as the thickness of the workpiece.

[0010] In some embodiments, the lathe turret has a plurality of locking assemblies disposed at intervals.

[0011] In some embodiments, the positioning shaft is a tapered mandrel.

[0012] In some embodiments, the workpiece is a bushing.

[0013] In some embodiments, the locking assembly includes a locking member, a tightening member, and a limiting member located between the locking member and the tightening member. The limiting member has a through hole, and the inner wall of the through hole has a plurality of arc-shaped protrusions, which are arranged corresponding to the axial slots of the locking member.

[0014] In some embodiments, the arc-shaped protrusion is formed by spirally extending from the inner wall of the through hole toward the middle of the limiting member.

[0015] In some embodiments, one end of the tightening member has a receiving groove, the limiting member is arranged in the receiving groove and is coaxially sleeved on the screw of the locking member with the tightening member.

[0016] In some embodiments, the locking member is a bolt, and the slot extends from the bottom of the screw rod of the bolt to the top of the screw rod.

[0017] In some embodiments, the tightening member is a nut, the accommodating groove has a step portion, and the shape of the limiting member corresponds to the accommodating groove.

[0018] The technical effect of the utility model: The symmetrical end face lathe processing tool of the utility model has the following advantages: 1. It can be processed by ordinary lathe, and has strong versatility; 2. The tapered core shaft is designed according to the standard, and has good standardization; 3. The turning tool is a conventional tool, and has strong versatility; 4. The processing design is ingenious, and two tools are used for simultaneous processing to achieve the purpose of forming turning, with strong versatility, and can ensure the consistency of product thickness size during batch processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a symmetrical end face lathe processing tooling according to an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of a first turning tool and a second turning tool in an embodiment of the present utility model.

[0021] Figure 3 It is a schematic diagram of the positioning shaft of an embodiment of the present utility model.

[0022] Figure 4 Schematic diagram of the locking assembly of an embodiment of the present invention.

[0023] Figure 5 It is an exploded view of the locking assembly of an embodiment of the present utility model. DETAILED DESCRIPTION

[0024] The essential features and advantages of the present invention are further described below with reference to examples, but the present invention is not limited to the examples listed.

[0025] like Figures 1 to 5As shown, a symmetrical end-face lathe machining tooling of this embodiment includes: a first turning tool 1, mounted on the lathe turret 6 via a locking assembly 4, located on one side of a workpiece 5 and corresponding to a first end face 51 of the workpiece 5. The first turning tool 1 processes the first end face 51. A second turning tool 2, mounted on the lathe turret 6 via a locking assembly 4 and symmetrically arranged with the first turning tool 1, is arranged corresponding to a second end face 52 of the workpiece 5. The spacing between the second turning tool 2 and the first turning tool 1 is the same as the thickness of the workpiece 5. The second turning tool 2 can process the second end face 52 of the workpiece. A positioning shaft 7, mounted on the lathe, has a taper, and the workpiece 5 is sleeved on the positioning shaft 7 along the axial direction of the positioning shaft 7. In the above technical solution, the workpiece is first clamped with the positioning shaft. In this embodiment, the workpiece is a shaft sleeve and the positioning shaft is a tapered mandrel. The ends of the tapered mandrel are supported on the lathe. The first and second turning tools are then clamped, and the tools are then tightened using the locking assembly. The parts are assembled through a tapered mandrel, and the first and second turning tools are simultaneously clamped on the machine tool. The distance between the two cutting edges is limited to the thickness dimension of the sleeve part. During processing, the first and second turning tools enter the turning work synchronously. In this way, the turning of the two end faces of the sleeve part is completed in one step, which can not only ensure the parallelism of the two end faces, but also ensure the consistency of the thickness dimension of mass production, thereby improving production efficiency. In this embodiment, the tapered mandrel is designed according to the standard "JB / T 10116 Machine Tool Fixture Parts and Components - Tapered Mandrels", and a taper of 1:3000 is selected. The first and second turning tools can be end cutting tools, and any tool main deflection angle can be used.

[0026] In this embodiment, a thickness block 8 is provided between the first turning tool 1 and the second turning tool 2. The thickness of the thickness block 8 is the same as the thickness of the workpiece 5. A sizing block is used to define the distance between the first and second side cutting edges to be the thickness of the sleeve component. The sizing block is placed between the cutting edges of the two turning tools, and the two tools are adjusted to abut against the sizing block. The lathe turret 6 has a plurality of locking assemblies 4 arranged at intervals to facilitate the securing of the turning tools.

[0027] In this embodiment, the locking assembly 4 includes a locking member 41, a tightening member 42, and a stopper 43 positioned between the locking member 41 and the tightening member 42. The stopper 43 has a through hole 431, the inner wall of which is formed with a plurality of arcuate protrusions 432. The arcuate protrusions 432 are arranged corresponding to the axial retaining groove 411 of the locking member 41. Through the above-described technical solution, each arcuate protrusion 432 is inserted into the retaining groove 411. In this embodiment, there are three arcuate protrusions 432. Because the arcuate protrusions 432 form an arcuate protrusion with the inner wall of the through hole, when the locking member 41 rotates clockwise, the arcuate protrusions can be disengaged and rotated out of the retaining groove. When the locking member 41 rotates counterclockwise, they are stopped by the retaining groove 411, thereby reducing the risk of loosening of the locking member 41. The arcuate protrusions 432 are formed by spirally extending from the inner wall of the through hole 431 toward the middle of the stopper 43. The tightening member 42 has a receiving groove 421 at one end. The limiting member 43 is disposed within the receiving groove 421 and is coaxially sleeved with the tightening member 42 on the screw 412 of the locking member 41. The locking member 41 is a bolt, and the retaining groove 411 extends from the bottom of the screw 412 to the top of the bolt. The tightening member 42 is a nut, and the receiving groove 421 has a stepped portion 422. The shape of the limiting member 43 corresponds to the receiving groove 421, that is, the limiting member 43 has a constricted portion, forming an L-shaped groove corresponding to the stepped portion 422, which makes the limiting member 43 more stable within the receiving groove.

[0028] A symmetrical end face lathe processing tooling of this embodiment has the following advantages: 1. It can be processed by ordinary lathes, and has strong versatility. Ordinary lathes refer to general lathes, such as C616, C620, C630, etc., which are not CNC-operated, but manual machine tools; 2. The tapered core shaft is designed according to the standard, and has good standardization; 3. The turning tools are conventional tools, and have strong versatility, that is, there is no need to customize the tools, and the same tools used before can be used now; 4. The processing design is ingenious, and two tools are used for simultaneous processing to achieve the purpose of forming turning. It has strong versatility and can ensure the consistency of product thickness size during batch processing.

[0029] It should be noted that the above preferred embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A symmetrical end face lathe processing tool, characterized in that: include: A first turning tool is mounted on the lathe turret via a locking assembly and is located on one side of the workpiece and corresponding to the first end surface of the workpiece; a second turning tool, mounted on the lathe turret via a locking assembly and symmetrically arranged with the first turning tool, the second turning tool being arranged corresponding to the second end surface of the workpiece, and a spacing between the second turning tool and the first turning tool being the same as the thickness of the workpiece; The positioning shaft is installed on the lathe and has a taper. The workpiece is sleeved on the positioning shaft along the axial direction of the positioning shaft.

2. The symmetrical end surface lathe processing tool according to claim 1, characterized in that: A thickness block is provided between the first turning tool and the second turning tool, and the thickness of the thickness block is the same as the thickness of the workpiece.

3. The symmetrical end surface lathe processing tool according to claim 2, characterized in that: The lathe turret has a plurality of locking assemblies arranged at intervals.

4. The symmetrical end surface lathe processing tool according to claim 1, characterized in that: The positioning shaft is a tapered core shaft.

5. The symmetrical end surface lathe processing tool according to claim 1, characterized in that: The workpiece is a shaft sleeve.

6. The symmetrical end surface lathe processing tool according to any one of claims 1 to 5, characterized in that: The locking assembly includes a locking member, a tightening member, and a limiting member located between the locking member and the tightening member. The limiting member has a through hole, and the inner wall of the through hole has a plurality of arc-shaped protrusions, which are arranged corresponding to the axial grooves of the locking member.

7. The symmetrical end surface lathe processing tool according to claim 6, characterized in that: The arc-shaped protrusion is formed by spirally extending from the inner wall of the through hole toward the middle of the limiting member.

8. The symmetrical end surface lathe processing tool according to claim 7, characterized in that: One end of the tightening member is provided with an accommodating groove, the limiting member is arranged in the accommodating groove and is coaxially sleeved on the screw rod of the locking member with the tightening member.

9. The symmetrical end surface lathe processing tool according to claim 8, characterized in that: The locking piece is a bolt, and the clamping groove extends from the bottom of the screw rod of the bolt to the top of the screw rod.

10. The symmetrical end surface lathe processing tool according to claim 9, characterized in that: The tightening member is a nut, the accommodating groove has a step portion, and the shape of the limiting member corresponds to the accommodating groove.

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