Inner gear surface machining method

Abstract

The invention provides an inner gear face machining method, and belongs to the technical field of machining. The method comprises the following steps: carrying out pretreatment including cleaning and deburring on a front support and a working bottom plate; the small end face of the front support faces downwards, leveling is conducted in the vertical direction, and the workpiece is pressed; then, the rotary limiting supporting nail is tightly attached to the machined inner blocking face, the guide copper sleeve and the limiting copper sleeve are placed in, the countersink rod penetrates, and the lower portion of the countersink rod is inserted into the countersink head and is tightened through the fastening screw; connecting the tail part of the taper shank of the countersink rod with a radial drill, starting the radial drill to process, countersink to a limiting position, stopping blowing, and measuring the thickness of an inner gear surface; and finally, correcting according to a measurement result until the design requirement is met. Power is provided through connection of the taper shank of the countersink rod and the radial drill, the countersink rod plays a role in guiding and limiting through the guiding copper sleeve and the limiting copper sleeve, and the machining purpose is achieved. The device is easy to operate, can finish double-sided machining of the inner countersink, and solves the problems that numerical control machine tool equipment is low in machining efficiency and too high in machining cost.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to an inner surface processing method. Background Art

[0002] As an important supporting component in the mechanical system, the machining quality of the inner surface of the front support directly affects the stability and safety of the entire system. In the existing machining methods, the inner surface is usually machined on a CNC machine tool using a relatively expensive reverse countersink milling cutter. However, these methods have some problems. The reverse machining has low cutting efficiency and the tool cost is too high. CNC machining requires expensive equipment and professional skills, and the cost is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is: how to design an efficient and low-cost processing method for the inner stop surface of the front support.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: A method for processing an inner surface comprises the following steps: 1) Pre-treat the front support and working base plate including cleaning and deburring; 2) With the small end of the support facing downward, level it vertically and press the workpiece tightly; 3) Rotate the limit support pin close to the processed inner surface, put in the guide copper sleeve and the limit copper sleeve, insert the countersinking rod, insert the countersinking head at the bottom of the countersinking rod, and tighten it with the fastening screw; 4) Connect the tapered shank tail of the countersinking bar to the radial drill, start the radial drill, countersink to the limit, stop blowing, and measure the thickness of the inner surface; 5) Make corrections based on the measurement results until the design requirements are met.

[0005] Preferably, the countersink head and countersink rod are made of #45 steel quenched and tempered material.

[0006] Preferably, the copper sleeve is a self-lubricating graphite copper sleeve.

[0007] Preferably, the thickness of the inner stop surface is measured by an outside micrometer.

[0008] The present invention provides a method for processing an inner stop surface. The structures involved in the processing of the method include a detachable countersinking head, a countersinking rod, a guide copper sleeve, a limit copper sleeve, a guide mechanism, a limit mechanism, a clamping mechanism, a positioning mechanism, and the like. Power is provided by connecting the tapered shank of the countersinking rod and a radial drill, and the countersinking rod is guided and limited by the guide copper sleeve and the limit copper sleeve to achieve the purpose of processing. In the present invention, the countersinking rod is connected to the radial drilling machine through the guide copper sleeve, and the countersinking head is detachably connected to the countersinking rod to meet the requirements of processing the inner stop surface. The present invention is simple to operate, and can complete the processing of the inner stop on both sides, which solves the problems of low processing efficiency and high processing cost of CNC machine tools, and realizes efficient and stable processing of the inner stop surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of a processing object of the present invention; In the figure: 1. Removable countersinking head 2. Countersinking bar 3. Guide copper sleeve 4. Limit copper sleeve 5. Limit support nails 6. Support base 7. Fasten the screws 8. Clamping mechanism 9. Working base plate 10. Front support. DETAILED DESCRIPTION

[0010] The specific embodiments of the present invention will be described in detail below. In order to avoid too much unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to have a certain change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meaning as those generally understood by those skilled in the art to which the present invention belongs.

[0011] A method for processing inner surface: Step 1: Pre-process the front support and work base plate, including cleaning and deburring, to ensure the surface quality of the front support and the accuracy of the processing benchmark.

[0012] Step 2: Place the small end of the support facing downward, level it vertically, and press the workpiece.

[0013] Step 3: Rotate the limit support pin close to the processed inner surface, insert the guide copper sleeve and the limit copper sleeve, insert the countersinking rod, insert the countersinking head at the lower part of the countersinking rod, and tighten it with the fastening screws.

[0014] Step 4: Connect the tapered shank tail of the countersinking bar to the radial drill, start the radial drill processing, countersink to the limit, stop blowing, measure the thickness of the inner surface with an outside diameter micrometer, and adjust the processing according to the size requirements.

[0015] Step 5: Make necessary corrections based on the test results until the final design requirements are met.

[0016] In the above technical solution: 1. The countersink head and countersink rod are made of #45 tempered steel to ensure overall strength and rigidity to prevent deformation during processing.

[0017] 2. The copper sleeve adopts self-lubricating graphite copper sleeve. Although the cost of self-lubricating graphite copper sleeve is twice that of ordinary copper sleeve, its service life is 4 times that of ordinary copper sleeve.

[0018] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for processing an inner surface, characterized in that: The following steps are involved: 1) Pre-treat the front support and working base plate including cleaning and deburring; 2) With the small end of the support facing downward, level it vertically and press the workpiece tightly; 3) Rotate the limit support pin close to the processed inner surface, put in the guide copper sleeve and the limit copper sleeve, insert the countersinking rod, insert the countersinking head at the bottom of the countersinking rod, and tighten it with the fastening screw; 4) Connect the tapered shank tail of the countersinking bar to the radial drill, start the radial drill, countersink to the limit, stop blowing, and measure the thickness of the inner surface; 5) Make corrections based on the measurement results until the design requirements are met.

2. The inner surface processing method according to claim 1, characterized in that: The countersink head and countersink bar are made of #45 tempered steel.

3. The inner surface processing method according to claim 1, characterized in that: The copper sleeve adopts self-lubricating graphite copper sleeve.

4. The inner surface processing method according to claim 1, characterized in that: The thickness of the inner surface is measured by an outside micrometer.

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