Special tool jig for grinding inner diameter and outer diameter of super-long workpiece by cylindrical grinding machine

Abstract

The utility model relates to the technical field of tool jigs, and discloses a special tool jig for grinding the inner diameter and the outer diameter of a super-long workpiece by a cylindrical grinding machine, which comprises a working headstock, the left end of the working headstock is rotatably connected with a machine tool, and the right end of the working headstock is provided with a main shaft switching jig through a bolt. The main shaft switching jig is disassembled and taken down through the disassembling bolt, then the main shaft switching jig with the large diameter is installed at the right end of the working head frame through the bolt, then the three-jaw switching base plate is installed through the bolt, and then the three-jaw chuck with the large through hole diameter is installed through the three-jaw switching base plate. And the three-jaw chuck with the large through hole diameter is used for clamping a workpiece, so that the workpiece clamping capacity is improved, the through hole diameters of the working head frame and the three-jaw chuck are increased, bridging lengthening is formed, the flexibility in use is improved, meanwhile, the production capacity of equipment is enhanced, the production efficiency of the equipment is improved, and the production and machining cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a special tooling fixture for grinding the inner and outer diameters of ultra-long workpieces on an external cylindrical grinder. Background Art

[0002] The tooling fixture for grinding on an external cylindrical grinder is a tool system specifically used for grinding the outer surface and the axial shoulder end face of workpieces with cylindrical, conical or other generatrix-developed shapes. These toolings usually include fixtures for fixing and positioning workpieces, guiding devices, supporting elements, and grinding wheels or grinding heads for grinding. The design of the external cylindrical grinder allows the grinding wheel or grinding head to perform precise rotation and linear or curvilinear motion along the axis of the workpiece, thereby realizing the grinding process of the workpiece.

[0003] When the existing external cylindrical grinder is in processing, when some special workpieces (length-diameter ratio) with ultra-long workpieces need to be ground on the external cylindrical grinder, the existing equipment will face the problem that it cannot be clamped due to the too small diameter of the through hole of the main shaft, resulting in the inability to grind such workpieces. It is necessary to find another large-scale equipment or other equipment to replace, which leads to an increase in manufacturing cost, a decrease in processing efficiency, and a longer delivery period. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a special tooling fixture for grinding the inner and outer diameters of ultra-long workpieces on an external cylindrical grinder.

[0005] The utility model is realized by the following technical solutions: A special tooling fixture for grinding the inner and outer diameters of ultra-long workpieces on an external cylindrical grinder includes a working headstock. The left end of the working headstock is rotatably connected to a working mother machine. The right end of the working headstock is installed with a spindle adapter fixture through bolts. The right end of the spindle adapter fixture is installed with a three-jaw adapter chassis through bolts. The right end of the three-jaw adapter chassis is installed with a three-jaw chuck through bolts. A workpiece to be processed is arranged inside the three-jaw chuck. An external cylindrical grinding wheel is arranged at the rear end of the three-jaw chuck. A connecting shaft is fixedly connected to the inner wall of the external cylindrical grinding wheel.

[0006] Through the above technical solutions, the stability and positioning accuracy of the workpiece to be processed during the processing are ensured by the three-jaw chuck. Since the spindle adapter fixture, the three-jaw adapter chassis and the three-jaw chuck are all installed through bolts, it is convenient to replace the spindle adapter fixture, the three-jaw adapter chassis and the three-jaw chuck with different diameters subsequently, thereby improving the flexibility and versatility during use and improving the production efficiency of the equipment.

[0007] As a further improvement of the above solution, the left end of the workpiece to be processed extends into the spindle adapter fixture.

[0008] Through the above technical solution, the left end of the workpiece extends into the spindle adapter jig, enabling the tooling to adapt to workpieces of different lengths, thereby increasing the flexibility and scope of application during use.

[0009] As a further improvement to the above solution, the right end of the connecting shaft is rotatably connected to an installation box body.

[0010] As a further improvement to the above solution, a motor is arranged inside the installation box body.

[0011] Through the above technical solution, the motor is installed and fixed by the installation box body, and at the same time, the motor can be protected, reducing the impact of dust during processing on the motor.

[0012] As a further improvement to the above solution, the output end of the motor is fixedly connected to the right end of the connecting shaft.

[0013] Through the above technical solution, the connecting shaft is driven to rotate by the motor, causing the external grinding wheel to rotate, thereby grinding the workpiece.

[0014] As a further improvement to the above solution, the bottom of the installation box body is fixedly connected to a connecting base.

[0015] Through the above technical solution, the installation box body is supported by the connecting base, improving the stability of the installation box body. At the same time, the connecting base can be connected to the transverse movement mechanism, enabling the external grinding wheel to move horizontally to grind the workpiece.

[0016] As a further improvement to the above solution, the bottom of the machine tool is fixedly connected to a fixed base.

[0017] Through the above technical solution, the machine tool is supported by the fixed base, improving the stability during use.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model is provided with a spindle adapter jig, a three-jaw adapter chassis and a three-jaw chuck. Specifically, the spindle adapter jig is removed by disassembling the bolts, and then the spindle adapter jig with a large diameter is installed at the right end of the work headstock through bolts. Then, the three-jaw adapter chassis is installed through bolts, and then the three-jaw chuck with a large through-hole diameter is installed through the three-jaw adapter chassis. Then, the workpiece is clamped by the three-jaw chuck with a large through-hole diameter, thereby increasing the workpiece clamping ability, enlarging the through-hole diameters of the work headstock and the three-jaw chuck, forming a bridging extension, increasing the flexibility during use, enhancing the production capacity of the equipment, improving the production efficiency of the equipment, and reducing the production and processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Schematic diagram of the sectional structure of the present utility model;

[0022] Figure 3 Schematic diagram of the top view structure of the present utility model;

[0023] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of part A;

[0024] Figure 5 Schematic diagram of the side view structure of the present utility model.

[0025] Main symbol description:

[0026] 1. Working headstock; 2. Spindle adapter jig; 3. Three-jaw adapter chassis; 4. Three-jaw chuck; 5. Workpiece; 6. External cylindrical grinding wheel; 7. Connecting shaft; 8. Installation box; 9. Connecting base; 10. Machine tool; 11. Fixed base. Specific implementation mode

[0027] Next, in combination with the attached drawings and specific implementation modes, the present utility model will be further described. It should be noted that on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.

[0028] Embodiment:

[0029] Please combine with Figures 1-5 , A special tooling jig for grinding the inner and outer diameters of ultra-long workpieces on an external cylindrical grinding machine in this embodiment includes a working headstock 1. The left end of the working headstock 1 is rotatably connected to a machine tool 10. The right end of the working headstock 1 is installed with a spindle adapter jig 2 through bolts. The right end of the spindle adapter jig 2 is installed with a three-jaw adapter chassis 3 through bolts. The right end of the three-jaw adapter chassis 3 is installed with a three-jaw chuck 4 through bolts. A workpiece 5 is arranged inside the three-jaw chuck 4. An external cylindrical grinding wheel 6 is arranged at the rear end of the three-jaw chuck 4. A connecting shaft 7 is fixedly connected to the inner wall of the external cylindrical grinding wheel 6. The large-diameter spindle adapter jig 2 is installed at the right end of the working headstock 1 through bolts, then the three-jaw adapter chassis 3 is installed through bolts, and then the three-jaw chuck 4 with a large through-hole diameter is installed through the three-jaw adapter chassis 3. Then, the workpiece is clamped by the three-jaw chuck 4 with a large through-hole diameter, thereby increasing the workpiece clamping ability, increasing the through-hole diameters of the working headstock 1 and the three-jaw chuck 4, forming a bridging extension, increasing the flexibility during use, enhancing the production capacity of the equipment, improving the production efficiency of the equipment, and reducing the production and processing costs.

[0030] The left end of the workpiece 5 extends into the inside of the spindle adapter jig 2. By means of the spindle adapter jig 2, workpieces 5 of different lengths can be accommodated, thereby improving the flexibility in use.

[0031] The right end of the connecting shaft 7 is rotatably connected with a mounting box body 8.

[0032] A motor is arranged inside the mounting box body 8. The motor is mounted through the mounting box body 8, and at the same time, the motor is protected.

[0033] The output end of the motor is fixedly connected with the right end of the connecting shaft 7. The motor drives the connecting shaft 7 to rotate, driving the external cylindrical grinding wheel 6 to rotate, so that the external cylindrical grinding wheel 6 grinds and processes the workpiece 5.

[0034] The bottom of the mounting box body 8 is fixedly connected with a connecting base 9. Through the connecting base 9, it can be connected with the transverse moving mechanism, so that when the connecting base 9 moves, it can drive the external cylindrical grinding wheel 6 to move, increasing the grinding range.

[0035] The bottom of the machine tool 10 is fixedly connected with a fixed base 11.

[0036] The implementation principle of a special tooling jig for grinding the inner and outer diameters of ultra-long workpieces by an external cylindrical grinding machine in the embodiment of the present application is as follows: When machining a workpiece 5 with a large diameter, the spindle adapter jig 2 is removed by disassembling the bolts, and then the spindle adapter jig 2 with a large diameter is installed at the right end of the work headstock 1 through bolts. Then, the three-jaw adapter chassis 3 is installed through bolts, and then the three-jaw chuck 4 with a large through-hole diameter is installed through the three-jaw adapter chassis 3. Then, the workpiece is clamped by the three-jaw chuck 4 with a large through-hole diameter, thereby increasing the workpiece clamping ability, increasing the through-hole diameters of the work headstock 1 and the three-jaw chuck 4, forming a bridging extension, increasing the flexibility in use, enhancing the production capacity of the equipment, improving the production efficiency of the equipment, and reducing the production and processing costs.

[0037] The above-mentioned implementation manner is only the preferred implementation manner of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A special tooling for grinding the inner and outer diameters of extra-long workpieces with a cylindrical grinder, characterized in that: The invention comprises a working head frame (1), the left end of which is rotatably connected to a working machine (10), the right end of which is bolted with a main shaft transfer jig (2), the right end of which is bolted with a three-grip transfer chassis (3), the right end of which is bolted with a three-grip transfer chuck (4), the inside of which is bolted with a processing part (5), the rear end of which is bolted with an external cylindrical grinding wheel (6), and the inner wall of which is fixedly connected with a connecting shaft (7).

2. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 1, characterized in that: The left end of the workpiece (5) extends to the interior of the spindle transfer jig (2).

3. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 1, characterized in that: The right end of the connecting shaft (7) is rotatably connected to a mounting box (8).

4. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 3, characterized in that: A motor is arranged inside the installation box (8).

5. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 4, characterized in that: The output end of the motor is fixedly connected to the right end of the connecting shaft (7).

6. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 4, characterized in that: A connecting base (9) is fixedly connected to the bottom of the installation box (8).

7. A special tooling for grinding inner and outer diameters of extra-long workpieces with a cylindrical grinder as claimed in claim 1, characterized in that: The bottom of the machine tool (10) is fixedly connected to a fixed base (11).

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