Universal mandrel sliding block machining device and method

Abstract

The invention discloses a universal mandrel sliding block machining device and method, various accessories are provided, and the accessories are convenient in structure, convenient to machine, good in universality and suitable for machining of various sliding blocks. When the outer circle of the universal mandrel is ground, different clamping modes are adopted for rough grinding, semi-accurate grinding and accurate grinding according to the state of a part, stress deformation of the part is gradually eliminated, and the machining precision of the part is gradually improved. Wherein a clamping mode in a use state is simulated, so that the assembly error of each part is effectively eliminated, and the technical requirements of final assembly are ensured. Grinding deformation of thin-wall parts is effectively eliminated, a high-precision machine tool is not needed, and qualified products can be machined on a common machine tool. The processing efficiency is improved, the production cycle and cost are reduced, a basis is provided for processing of similar products, and the method is suitable for large-scale industrial use and popularization.

Description

Technical Field

[0001] The invention belongs to the field of gear parts detection, and in particular relates to a universal spindle slider processing device and method. Background Art

[0002] Universal spindles are widely used in the inspection of gear parts. Multiple sliders installed on the spindle slide in the slideway at the same time, with different positions and different outer diameters, thus achieving variable diameters. This puts higher requirements on the dimensional consistency and geometric tolerance of the sliders.

[0003] How to overcome the clamping problems, stress deformation and slider repeat positioning accuracy during the grinding process has always been the key to the fine processing of the slider after heat treatment. The existing technology lacks devices and methods to solve the above problems, and cannot guarantee the consistency of the final fine-processed part size and parallelism, flatness, and roughness, making it difficult to meet the use requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a universal spindle slider processing device and method to solve the problem in the prior art that the consistency of the size and the parallelism, flatness and roughness of the universal spindle slider after fine processing do not meet the use requirements.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A universal spindle slider processing device comprises a universal spindle slider and a universal spindle, wherein the universal spindle is provided with an oblique groove; the universal spindle slider comprises six processing surfaces, namely, A, B, C, D, E and F, and the universal spindle slider can be fixed on a high-precision flat-nose pliers of a surface grinding workbench; one side of the universal spindle slider is an inclined surface, which matches the oblique groove of the universal spindle, and further comprises an end face positioning ring, a rough grinding positioning ring, a first fine grinding positioning ring, a second fine grinding positioning ring and a limit ring;

[0007] The end face positioning ring can be mounted on the universal mandrel, and the distance between the inner hole of the end face positioning ring and the outer circle of the universal mandrel is not greater than 0.01mm; the parallelism of the two end faces of the end face positioning ring is not greater than 0.003mm, and the perpendicularity of the two end faces to the inner hole is not greater than 0.003mm; a plurality of bolt holes perpendicular to the central axis are evenly opened on the outer wall of the end face positioning ring;

[0008] The outer wall of the rough grinding positioning ring is evenly provided with a plurality of bolt holes perpendicular to the central axis;

[0009] The coaxiality of the outer circle and the inner hole of the first fine-ground positioning ring and the second fine-ground positioning ring is not greater than 0.003mm, and the roughness is not greater than Ra0.4;

[0010] The inner hole sizes of the first fine-ground positioning ring and the second fine-ground positioning ring respectively match the F surface and E surface sizes of the universal spindle slider, and the gap formed by the inner holes of the first fine-ground positioning ring and the second fine-ground positioning ring and the universal spindle slider after assembly is no more than 0.01mm;

[0011] The inner hole of the limit ring is provided with a circle of annular grooves, and the perpendicularity of the annular grooves to the center of the inner hole of the limit ring is not greater than 0.003mm; the matching clearance between the annular groove of the limit ring and the D surface and G surface of the universal spindle slider is 0.02-0.03mm.

[0012] The present invention also has the following features:

[0013] Furthermore, the inner hole size range of the first finely ground positioning ring is ￠24-￠100mm;

[0014] The inner hole size range of the second fine-ground positioning ring is ￠30-￠106mm.

[0015] A universal spindle slider processing method, based on the universal spindle slider processing device, comprises the following steps:

[0016] Step 1, using a high-precision flat-nose pliers of a surface grinding workbench to fix and clamp the universal spindle slider group, the universal spindle slider group includes a plurality of universal spindle sliders arranged in parallel; the plurality of universal spindle sliders form six processing surfaces A, B, C, D, E, and F of the universal spindle slider group; grinding the C surface of the universal spindle slider group until the grinding is completed;

[0017] Step 2, align the E surface of the universal spindle slider group, turn over the high-precision flat-nose pliers, and grind the D surface of the universal spindle slider group until the grinding is completed;

[0018] Step 3, place the universal spindle slider group as a whole into the slide groove of the universal spindle, make the universal spindle slider group close to the bottom surface of the slide groove of the universal spindle, use the end face positioning ring and the rough grinding positioning ring to fix the left and right sides of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and grind the E surface and F surface of the universal spindle slider group until the grinding is completed;

[0019] When grinding the E surface, the rough grinding positioning ring is installed on the F surface of the universal spindle slider group;

[0020] When grinding the F surface, install the rough grinding locating ring on the E surface of the universal spindle slider assembly;

[0021] Step 4, remove the rough grinding positioning ring, and fix the first fine grinding positioning ring on the E surface of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and semi-fine grind the F surface of the universal spindle slider group until the semi-fine grinding is completed;

[0022] Step 5, remove the first fine grinding positioning ring, and fix the second fine grinding positioning ring on the F surface of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and semi-fine grind the E surface of the universal spindle slider group until the semi-fine grinding is completed;

[0023] Step 6, remove the second fine grinding positioning ring, use the high-precision flat-nose pliers of the surface grinding workbench to fix and clamp the universal spindle slider group, and grind the G surface of the universal spindle slider group until the grinding is completed;

[0024] Step 7, use a limit ring to fix on one side of the universal spindle, place the universal spindle slider group close to the slide groove of the universal spindle, use a first fine grinding positioning ring to fix on the F surface of the universal spindle slider group to form a whole; fix the whole on the top installed on the external cylindrical grinder, and fine grind the E surface of the universal spindle slider group until the fine grinding is completed;

[0025] Step 8, remove the first fine grinding positioning ring, use the second fine grinding positioning ring to fix it on the E surface of the universal spindle slider group to form a whole; fix the whole on the top installed on the external cylindrical grinder, and fine grind the F surface of the universal spindle slider group until the fine grinding is completed;

[0026] Complete the processing of the universal spindle slider group.

[0027] Furthermore, the universal axis slider group includes three universal axis sliders arranged in parallel.

[0028] Furthermore, in step 5 and step 6, when the universal spindle slider group is finely ground, the feed amount is not greater than 0.003 mm and the rotation speed is not greater than 45 r / min.

[0029] Compared with the prior art, the present invention has the following technical effects:

[0030] The universal spindle slider processing device and method of the present invention provide a variety of auxiliary parts, which are convenient in structure, easy to process, and have good versatility, and are suitable for the processing of various sliders. When grinding the outer circle of the universal spindle, rough grinding, semi-finishing grinding, and fine grinding respectively use different clamping methods according to the state of the parts, gradually eliminate the stress deformation of the parts, and gradually improve the processing accuracy of the parts.

[0031] Among them, the clamping method that simulates the use state can effectively eliminate the assembly errors of various components and ensure the technical requirements of the final assembly. It can effectively eliminate the grinding deformation of thin-walled parts, and qualified products can be processed on ordinary machine tools without the need for high-precision machine tools. It improves processing efficiency, reduces production cycle and cost, provides a basis for the processing of similar products, and is suitable for large-scale use and promotion in industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the universal spindle slider in the present invention;

[0033] Figure 2 It is a schematic diagram of the universal spindle structure in the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the end face positioning ring in the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the rough grinding positioning ring in the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the first fine grinding positioning ring in the present invention;

[0037] Figure 6 It is a schematic structural diagram of the second fine grinding positioning ring in the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the limiting ring in the present invention;

[0039] Figure 8 It is a schematic diagram of the clamping method in step 1 of the present invention;

[0040] Fig. 9 It is a schematic diagram of the clamping method in step 2 of the present invention;

[0041] Fig.10 It is a schematic diagram of the clamping method in steps 4 and 5 of the present invention;

[0042] Fig.11 It is a schematic diagram of the clamping method in step 6 of the present invention;

[0043] Fig.12 It is a schematic diagram of the clamping method in steps 7 and 8 of the present invention.

[0044] The meanings of the numbers in the figure are: 1. universal spindle slider; 2. universal spindle; 3. end face locating ring; 4. rough grinding locating ring; 5. first fine grinding locating ring; 6. second fine grinding locating ring; 7. limit ring; 8. annular groove. DETAILED DESCRIPTION

[0045] It should be noted that, unless otherwise specified, all components in the present invention are components known in the prior art. For example, the universal spindle slider is a commonly known universal spindle slider.

[0046] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0047] like Figure 1-7 As shown, a universal spindle slider processing device includes a universal spindle slider 1 and a universal spindle 2, and an inclined groove is provided on the universal spindle 2; the universal spindle slider 1 includes six processing surfaces A, B, C, D, E, and F, and the universal spindle slider 1 can be fixed on a surface grinding workbench; one side of the universal spindle slider 1 is an inclined surface, and the inclined surface matches the inclined groove of the universal spindle 2;

[0048] It should be noted that the universal spindle slider 1 in the present invention is a standard part known in the prior art. There is such a structure in the art. Figure 1 As shown, the names of the six processing surfaces A, B, C, D, E, and F are well-known in the art.

[0049] It also includes an end face positioning ring 3, a rough grinding positioning ring 4, a first fine grinding positioning ring 5, a second fine grinding positioning ring 6 and a limit ring 7;

[0050] The end face positioning ring 3 can be mounted on the universal spindle 2 and the spacing between the inner hole of the end face positioning ring 3 and the outer circle of the universal spindle 2 is not greater than 0.01mm; the parallelism of the two end faces of the end face positioning ring 3 is not greater than 0.003mm, and the perpendicularity of the two end faces to the inner hole is not greater than 0.003mm; a plurality of bolt holes perpendicular to the center axis are evenly arranged on the outer wall of the end face positioning ring 3; the end face positioning ring 3 is in the shape of a circular ring, and the plurality of bolt holes perpendicular to the center axis are used to assemble the top screw to fix the part on the universal spindle 2.

[0051] A plurality of bolt holes perpendicular to the central axis are evenly arranged on the outer wall of the rough grinding positioning ring 4 ; the bolt holes are used to assemble bolts, and the bolt end faces are tightened against the universal spindle slider 1 by rotating the bolts.

[0052] The coaxiality of the outer circle and the inner hole of the first fine-ground positioning ring 5 and the second fine-ground positioning ring 6 is not greater than 0.003mm, and the roughness is not greater than Ra0.4;

[0053] The inner hole sizes of the first fine grinding positioning ring 5 and the second fine grinding positioning ring 6 respectively match the F surface and E surface sizes of the universal spindle slider 1, and the gap formed by the inner holes of the first fine grinding positioning ring 5 and the second fine grinding positioning ring 6 and the universal spindle slider 1 after assembly is no more than 0.01mm;

[0054] The purpose of the coaxiality of the inner hole and the outer circle of the first fine-ground positioning ring 5 and the second fine-ground positioning ring 6 being no more than 0.003 mm is to detect the outer circle runout after assembly and verify whether the universal spindle slider 1 is assembled correctly and the repeatability of the positioning accuracy.

[0055] The inner hole size of the first fine grinding positioning ring 5 and the second fine grinding positioning ring 6 corresponds to the outer diameter of the universal spindle slider 1 on the F surface and the E surface. The inner hole size ￠d of the first fine grinding positioning ring 5 is determined by the diameter ￠r of the universal spindle slider 1 on the E surface, and the common range is ￠24-￠100mm; the inner hole size ￠D of the second fine grinding positioning ring 6 is determined by the diameter ￠R of the universal spindle slider 1 on the F surface, and the common size range is ￠30-￠106mm.

[0056] The inner hole of the limit ring 7 is provided with a circle of annular grooves 8, and the perpendicularity of the annular grooves 8 to the inner hole center of the limit ring 7 is not greater than 0.003mm; the relevant dimensional matching clearance formed by the limit ring 7 and the D surface and G surface of the universal spindle slider 1 is 0.02-0.03mm. It ensures that the sliding consistency of the universal spindle slider 1 when sliding from the small end to the large end is not greater than 0.01mm, and at the same time plays a role of limiting.

[0057] A universal spindle slider processing method, based on the universal spindle slider processing device, comprises the following steps:

[0058] In each grinding step, the consistency of the sizes of the multiple universal spindle sliders 1 in the universal spindle slider group should be ensured.

[0059] Step 1, such as Figure 8 As shown, a universal spindle slider group is fixedly clamped using a high-precision flat-nose pliers of a surface grinding workbench, and the universal spindle slider group includes a plurality of universal spindle sliders 1 arranged in parallel; the plurality of universal spindle sliders 1 form six processing surfaces A, B, C, D, E, and F of the universal spindle slider group; the C surface of the universal spindle slider group is ground until the grinding is completed;

[0060] Step 2, such as Fig. 9 As shown, align the E surface of the universal spindle slider group, turn over the high-precision flat-nose pliers, and grind the D surface of the universal spindle slider group until the grinding is completed;

[0061] Step 3, place the universal spindle slider group as a whole into the slide groove of the universal spindle 2, make the universal spindle slider group close to the bottom surface of the slide groove of the universal spindle 2, use the end face positioning ring 3 and the rough grinding positioning ring 4 to fix the left and right sides of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and grind the E surface and F surface of the universal spindle slider group until the grinding is completed;

[0062] When grinding the E surface, the rough grinding positioning ring 4 is installed on the F surface of the universal spindle slider group;

[0063] When grinding the F surface, install the rough grinding positioning ring 4 on the E surface of the universal spindle slider group;

[0064] The end face of the end face positioning ring 3 is tightly fitted with the end face of the universal spindle slider group, which plays a positioning role. By tightening the bolts, the universal spindle slider group is fixed in the inclined groove of the universal spindle 2, which plays a clamping role. When grinding the E surface, the rough grinding positioning ring 4 is installed on the F surface of the universal spindle slider;

[0065] Step 4, such as Fig.10 As shown, the rough grinding positioning ring 4 is removed, and the first fine grinding positioning ring 5 is fixedly installed on the E surface of the universal spindle slider group to form a whole, and the whole is installed on the top of the external cylindrical grinder, and the F surface of the universal spindle slider group is semi-finely ground until the semi-fine grinding is completed;

[0066] Step 5, remove the first fine grinding positioning ring 5, and fix the second fine grinding positioning ring 6 on the F surface of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and semi-fine grind the E surface of the universal spindle slider group until the semi-fine grinding is completed;

[0067] Step 6, such as Fig.11 As shown, the second fine grinding positioning ring 6 is removed, and the universal spindle slider group is fixedly clamped using a high-precision flat-nose pliers of a surface grinding workbench, and the G surface of the universal spindle slider group is ground until the grinding is completed;

[0068] Step 7, such as Fig.12 As shown, a limit ring 7 is used to fix one side of the universal spindle 2, the universal spindle slider group is pressed against the slide groove of the universal spindle 2, and a first fine grinding positioning ring 6 is used to fix the F surface of the universal spindle slider group to form a whole; the whole is fixed on the top installed on the external cylindrical grinder, and the E surface of the universal spindle slider group is finely ground until the fine grinding is completed;

[0069] Step 8, remove the first fine grinding positioning ring 6, use the second fine grinding positioning ring 7 to fix it on the E surface of the universal spindle slider group to form a whole; fix the whole on the top installed on the external cylindrical grinder, and fine grind the F surface of the universal spindle slider group until the fine grinding is completed;

[0070] Complete the processing of the universal spindle slider group.

[0071] As a preferred solution, the universal spindle slider group includes three parallel universal spindle sliders 1. High-precision flat-nose pliers simultaneously clamp the universal spindle sliders 1 to grind the C surface, which ensures the consistency of the grinding C surface size and improves the processing efficiency.

[0072] As a preferred solution, when fine grinding the universal spindle slider group, the feed amount is not greater than 0.003mm and the rotation speed is not greater than 45r / min to ensure the quality and accuracy of the machined surface.

Claims

1. A universal spindle slider processing device, comprising a universal spindle slider (1) and a universal spindle (2), wherein the universal spindle (2) is provided with an inclined groove; the universal spindle slider (1) comprises six processing surfaces A, B, C, D, E, and F, and the universal spindle slider (1) can be fixed on a high-precision flat-nose pliers of a surface grinding workbench; one side of the universal spindle slider (1) is an inclined surface, and the inclined surface matches the inclined groove of the universal spindle (2), and is characterized in that: It also includes an end face positioning ring (3), a rough grinding positioning ring (4), a first fine grinding positioning ring (5), a second fine grinding positioning ring (6) and a limit ring (7); The end face positioning ring (3) can be mounted on the universal mandrel (2), and the distance between the inner hole of the end face positioning ring (3) and the outer circle of the universal mandrel (2) is not greater than 0.01 mm; the parallelism of the two end faces of the end face positioning ring (3) is not greater than 0.003 mm, and the perpendicularity of the two end faces to the inner hole is not greater than 0.003 mm; the outer wall of the end face positioning ring (3) is evenly provided with a plurality of bolt holes perpendicular to the central axis; The outer wall of the rough grinding positioning ring (4) is evenly provided with a plurality of bolt holes perpendicular to the central axis; The coaxiality of the outer circle and the inner hole of the first finely ground positioning ring (5) and the second finely ground positioning ring (6) is no greater than 0.003 mm, and the roughness is no greater than Ra0.4; The inner hole sizes of the first finely ground positioning ring (5) and the second finely ground positioning ring (6) respectively match the F surface and E surface sizes of the universal spindle slider (1), and the gap formed by the inner holes of the first finely ground positioning ring (5) and the second finely ground positioning ring (6) and the universal spindle slider (1) after assembly is no more than 0.01 mm; The inner hole of the limiting ring (7) is provided with a circle of annular grooves (8), and the perpendicularity of the annular grooves (8) to the center of the inner hole of the limiting ring (7) is not greater than 0.003 mm; the matching clearance between the annular grooves (8) of the limiting ring (7) and the D surface and the G surface of the universal spindle slider (1) is 0.02-0.03 mm.

2. The universal spindle slider processing device according to claim 1, characterized in that: The inner hole size of the first finely ground positioning ring (5) ranges from ￠24 to ￠100 mm; The inner hole size range of the second finely ground positioning ring (6) is ￠30-￠106mm.

3. A method for processing a universal spindle slider, the method being based on the universal spindle slider processing device according to claim 2, characterized in that: The following steps are involved: Step 1, using a high-precision flat-nose pliers of a surface grinding workbench to fix and clamp a universal spindle slider group, the universal spindle slider group comprising a plurality of universal spindle sliders (1) arranged in parallel; the plurality of universal spindle sliders (1) form six processing surfaces A, B, C, D, E, and F of the universal spindle slider group; grinding the C surface of the universal spindle slider group until the grinding is completed; Step 2, align the E surface of the universal spindle slider group, turn over the high-precision flat-nose pliers, and grind the D surface of the universal spindle slider group until the grinding is completed; Step 3, place the universal spindle slider group as a whole into the slide groove of the universal spindle (2), make the universal spindle slider group close to the bottom surface of the slide groove of the universal spindle (2), use the end face positioning ring (3) and the rough grinding positioning ring (4) to fix the left and right sides of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and grind the E surface and F surface of the universal spindle slider group until the grinding is completed; When grinding the E surface, the rough grinding positioning ring (4) is installed on the F surface of the universal spindle slider group; When grinding the F surface, install the rough grinding positioning ring (4) on the E surface of the universal spindle slider assembly; Step 4, remove the rough grinding positioning ring (4), and fix the first fine grinding positioning ring (5) on the E surface of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and semi-fine grind the F surface of the universal spindle slider group until the semi-fine grinding is completed; Step 5, remove the first fine grinding positioning ring (5), and fix the second fine grinding positioning ring (6) on the F surface of the universal spindle slider group to form a whole, and install the whole on the top of the external cylindrical grinder, and semi-fine grind the E surface of the universal spindle slider group until the semi-fine grinding is completed; Step 6, remove the second fine grinding positioning ring (6), use the high-precision flat-nose pliers of the surface grinding workbench to fix and clamp the universal spindle slider group, and grind the G surface of the universal spindle slider group until the grinding is completed; Step 7, use a limit ring (7) to fix on one side of the universal spindle (2), place the universal spindle slider group close to the slide groove of the universal spindle (2), use a first fine grinding positioning ring (6) to fix on the F surface of the universal spindle slider group, and form a whole; fix the whole on the top installed on the external cylindrical grinder, and fine grind the E surface of the universal spindle slider group until the fine grinding is completed; Step 8, remove the first fine grinding positioning ring (6), use the second fine grinding positioning ring (7) to fix it on the E surface of the universal spindle slider group to form a whole; fix the whole on the top installed on the external cylindrical grinder, and fine grind the F surface of the universal spindle slider group until the fine grinding is completed; Complete the processing of the universal spindle slider group.

4. The method for processing a universal spindle slider according to claim 3, characterized in that: The universal axis slider group comprises three universal axis sliders (1) arranged in parallel.

5. The method for processing a universal spindle slider according to claim 4, characterized in that: In step 5 and step 6, when the universal spindle slider group is finely ground, the feed amount is not greater than 0.003 mm and the rotation speed is not greater than 45 r / min.

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