Universal work fixture for laser engraving machine to engrave characters on parts

Abstract

The utility model discloses a universal work fixture for a laser carving machine to carve characters on parts, which comprises a spring chuck (1), an L-shaped supporting rod (2) is arranged on the lower side of the spring chuck (1) through a screw rod, the L-shaped supporting rod (2) comprises a long rod (3) and a short rod (4), the long rod (3) is in the same axial direction with the spring chuck (1), and the short rod (4) is parallel to the end face of the spring chuck (1). And a telescopic pressing device corresponding to the spring chuck (1) is arranged at the upper end of the short rod (4). The device can further abut against a workpiece, and is good in safety.

Description

Technical Field

[0001] The utility model relates to a tool fixture, in particular to a universal tool fixture used for a laser engraving machine to engrave characters on parts. Background Art

[0002] Hydraulic piston pumps and hydraulic motors are one of the most important hydraulic components in modern aviation and aerospace equipment. With the rapid development of aviation, navigation, aerospace and other fields, the requirements for hydraulic piston pumps are getting higher and higher, especially the core parts of hydraulic piston pumps - rotor and plunger subassembly. The components of this component involve the sliding shoe and the plunger body forming the plunger subassembly, and then matching with the rotor to form the rotor and plunger subassembly, that is, the core component of the hydraulic pump. If an abnormal situation occurs during the grinding, inspection and use of the hydraulic pump, it can be accurately traced back to the single blank stage during troubleshooting, so as to quickly check the process records and corresponding technical status of the parts within the effective range. Therefore, in order to ensure the traceability of the sliding shoe, it is necessary to mark the outer circle of the sliding shoe parts.

[0003] At present, the marking method adopted is laser engraving. When using a laser engraving machine to engrave parts, it is necessary to place the parts under the laser head and position and clamp the parts, rotate the parts, align the laser head with the outer circle of the parts where engraving is required, and then start the laser engraving machine to perform accurate laser engraving operations on the arc surface. In order to improve the stability and accuracy of engraving, it is usually necessary to further tighten the end face of the workpiece. At present, it is usually achieved by manual pressing and other methods, which poses certain safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide a universal fixture for a laser engraving machine to engrave characters on parts, which can further tighten the workpiece and has good safety.

[0005] The technical solution of the utility model is a universal tooling fixture used for laser engraving machines to engrave on parts, comprising a spring chuck, an L-shaped support rod is provided on the lower side of the spring chuck through a screw, the L-shaped support rod comprises a long rod in the same direction as the axial direction of the spring chuck and a short rod parallel to the end face of the spring chuck, and a telescopic clamping device corresponding to the spring chuck is provided on the upper end of the short rod.

[0006] In the aforementioned universal tooling fixture used for a laser engraving machine to engrave on parts, the telescopic clamping device includes a fixed seat connected to a short rod, the fixed seat and the axis of the spring chuck are in the same straight line, the fixed seat is provided with a clamping seat and a guide rod fixed on the clamping seat near the spring chuck, a spring is provided outside the guide rod, a limit seat is provided at the end of the spring, an abutment mechanism that can rotate relative to the limit seat is provided in the limit seat, and the abutment mechanism is provided on the guide rod.

[0007] In the aforementioned universal tooling fixture used for a laser engraving machine to engrave on parts, the abutment mechanism includes an operating handle arranged on one side of the limit seat, screws and nuts for fixing the limit seat and the operating handle are arranged on both sides of the limit seat and the operating handle, and an abutment block for tightening the workpiece is arranged on one side of the nut.

[0008] Compared with the prior art, the utility model positions the workpiece by a spring chuck, and an L-shaped support rod is arranged under the spring chuck, and a telescopic clamping device is arranged on the L-shaped support rod to further clamp the end face of the workpiece, which not only improves the processing accuracy, but also does not require manual clamping and has good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0010] Figure 2 It is a structural schematic diagram of Embodiment 2 of the present utility model;

[0011] Figure 3 It is a structural schematic diagram of the spring chuck of the utility model.

[0012] The markings in the attached drawings are: 1-spring chuck, 2-L-shaped support rod, 3-long rod, 4-short rod, 5-fixed seat, 6-guide rod, 7-spring, 8-limit seat, 9-operating handle, 10-adjusting rod, 11-screw, 12-nut, 13-abutment block, 14-clamping seat. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0014] Embodiment. A universal fixture for laser engraving machine to engrave characters on parts, comprising: Figure 1 , 3 As shown, it includes a spring chuck 1, and an L-shaped support rod 2 is provided on the lower side of the spring chuck 1 through a screw. The L-shaped support rod 2 includes a long rod 3 axially in the same direction as the spring chuck 1 and a short rod 4 parallel to the end face of the spring chuck 1. A telescopic clamping device corresponding to the spring chuck 1 is provided on the upper end of the short rod 4.

[0015] The telescopic clamping device includes a fixed seat 5 connected to the short rod 4, the fixed seat 5 and the axis of the spring chuck 1 are in the same straight line, the fixed seat 5 is provided with a clamping seat 14 and a guide rod 6 fixed on the clamping seat 14 on the side close to the spring chuck 1, a spring 7 is provided outside the guide rod 6, a limit seat 8 is provided at the end of the spring 7, and an abutment mechanism that can rotate relative to the limit seat 8 is provided in the limit seat 8, and the abutment mechanism is provided on the guide rod 6.

[0016] The abutment mechanism includes an operating handle 9 arranged on one side of the limit seat 8. Screws 11 and nuts 12 for fixing the limit seat 8 and the operating handle 9 are arranged on both sides of the limit seat 8 and the operating handle 9. An abutment block 13 for tightening the workpiece is arranged on one side of the nut 12.

[0017] Principle of the utility model: the spring chuck of the present application is an existing spring chuck, an L-shaped support rod 2 is fixed under the spring chuck by a screw, the long rod 3 of the L-shaped support rod 2 is in the same direction as the axis of the spring chuck 1, the short rod 4 of the L-shaped support rod 2 is parallel to the end face of the spring chuck 1, and a fixing seat 5 is arranged on the short rod, and the fixing seat 5 and the axis of the spring chuck 1 are in the same straight line. A clamping seat 14 is provided on one side of the fixed seat 5, and a guide rod 6 coaxially arranged with the fixed seat 5 is provided in the middle of the clamping seat 14. A spring 7 fixed on the clamping seat 14 is provided on the outer side of the guide rod 6, and a limit seat 8 is provided at the end of the spring 7. The limit seat is connected with the spring so that the spring 7 can be compressed during the movement of the limit seat. A screw 11 and a nut 12 are provided in the middle of the limit seat 8. Guide holes corresponding to the guide rod 6 are provided in the screw 11 and the nut 12. The operating handle 9 is fixed to the limit seat 8 by the screw 11 and the nut 12, so that the operating handle 9 can drive the limit seat 8 to move. At the same time, the screw 11 and the nut 12 are not completely tightened, so that the operating handle can rotate relative to the limit seat 8. An abutment block 13 is provided on one side of the nut. The operating handle 9, the nut 12 and the abutment block 13 can be fixedly connected by adhesive or welding, so that the three cannot rotate relative to each other.

[0018] When in use, by toggling the operating handle 9, the operating handle 9 drives the limit seat 8 to compress the spring 7, and the screw 11, nut 12, limit seat 8, abutment block 13 and operating handle 9 will move along the guide rod 6, so that the abutment block 13 is separated from the workpiece, so that the workpiece can be taken out. This application is mainly used for the processing of parts such as plunger pump guide shoes. Then, the operating handle 9 is toggled again, so that the workpiece can be placed in the spring chuck 1 and tightened. Further, a positioning axis corresponding to the workpiece can be set on the abutment block, so that when the workpiece needs to be rotated, the rotation of the workpiece can be achieved by rotating the operating handle.

[0019] Embodiment 2. Based on embodiment 1, an adjusting rod 10 is provided in the middle which can rotate relative to the fixing seat 5, and the end of the adjusting rod 10 is connected to the clamping seat. The position of the clamping seat 14 can be adjusted by rotating the adjusting rod 10, so as to adapt to different types of plunger pump guide shoes.

Claims

1. A universal fixture for laser engraving machine to engrave on parts, characterized by: The invention comprises a spring chuck (1), wherein an L-shaped support rod (2) is arranged on the lower side of the spring chuck (1) via a screw rod, the L-shaped support rod (2) comprises a long rod (3) axially co-directional with the spring chuck (1) and a short rod (4) parallel to the end face of the spring chuck (1), and a telescopic pressing device corresponding to the spring chuck (1) is arranged on the upper end of the short rod (4).

2. The universal fixture for laser engraving machine to engrave characters on parts according to claim 1, characterized in that: The telescopic clamping device comprises a fixed seat (5) connected to the short rod (4), the fixed seat (5) and the axis of the spring clamp (1) are in the same straight line, the fixed seat (5) is provided with a clamping seat (14) and a guide rod (6) fixed on the clamping seat (14) on the side close to the spring clamp (1), a spring (7) is provided outside the guide rod (6), a limit seat (8) is provided at the end of the spring (7), and an abutment mechanism that can rotate relative to the limit seat (8) is provided in the limit seat (8), and the abutment mechanism is provided on the guide rod (6).

3. The universal fixture for laser engraving machine to engrave characters on parts according to claim 2, characterized in that: The abutment mechanism comprises an operating handle (9) arranged on one side of the limit seat (8), screws (11) and nuts (12) for fixing the limit seat (8) and the operating handle (9) are arranged on both sides of the limit seat (8) and the operating handle (9), and an abutment block (13) for tightening the workpiece is arranged on one side of the nut (12).

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