End face fluted disc grinding clamp

Abstract

The utility model discloses an end face fluted disc grinding clamp which comprises a fixed fluted disc, a movable fluted disc, a positioning assembly, a lifting assembly and a clamping assembly. A center hole is formed in the top of the movable fluted disc; the positioning assembly is connected to the center of the grinding machine; the lifting assembly is arranged in the positioning assembly and used for jacking the fluted disc; the clamping assembly is used for clamping and fixing the fixed fluted disc. The end face fluted discs are clamped in an inner jacking and outer pressing mode, it is guaranteed that the fixed fluted disc and the movable fluted disc are accurately positioned, clamping deformation is prevented, the consistency of tooth shapes, tooth pitches and tooth heights of the two fluted discs is guaranteed, the positioning and repeated positioning precision of products is guaranteed, and the quality of the products applying the parts in batches is improved. A special-shaped pressing plate is designed and used in the clamp, and it is guaranteed that interference with the grinding wheel is avoided in the grinding process. And the following component positioning shaft is added, so that the use requirements of gear grinding machine tool equipment with different sizes are met, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a face gear grinding fixture. BACKGROUND

[0002] The face gear is a precision indexing positioning element with automatic centering function, and is widely applied to numerical control machining centers, flexible automatic units, various high-precision intermittent circumferential indexing devices and other various mechanical equipment requiring precision indexing. Due to the characteristics of high machining precision and great machining difficulty of the face gear, the traditional clamping mode has problems of uneven clamping force, low positioning precision and complex operation, and machining errors are prone to occur in the manufacturing process, so that when the two end gears mesh, there are gaps between part of the meshing tooth surfaces, the meshing is not complete, the precision is reduced, and the machining efficiency and product quality are affected. Therefore, in order to ensure the matching precision, meshing performance, machining efficiency and quality consistency, a face gear grinding fixture with simple structure, stable clamping and convenient operation is urgently needed. SUMMARY

[0003] Based on the above technical problems, the utility model provides a face gear grinding fixture.

[0004] A face gear grinding fixture, comprising a fixed gear and a movable gear, a center hole is formed in the top of the movable gear:

[0005] A positioning assembly is connected to the center of the grinding machine;

[0006] A lifting assembly is arranged inside the positioning assembly, and the lifting assembly is used for lifting the movable gear;

[0007] A clamping assembly is used for clamping and fixing the fixed gear.

[0008] In the above technical scheme, the positioning assembly comprises:

[0009] A clamp body, an upper through hole is formed in the top center of the clamp body, a lower through hole is formed in the bottom center of the clamp body, a convex shaft is arranged at the bottom of the movable gear, and the convex shaft is matched with the top of the upper through hole;

[0010] A positioning shaft is connected to the top center of the grinding machine, and the positioning shaft is matched with the lower through hole.

[0011] In the above technical scheme, the clamping assembly comprises:

[0012] A special-shaped pressing plate is connected to the top of the clamp body through bolts, and one end of the special-shaped pressing plate is clamped at the edge of the fixed gear;

[0013] A pair of stepped pad irons are arranged between the special-shaped pressing plate and the clamp body.

[0014] In the above technical solution, further comprising:

[0015] A bolt hole is arranged at the bottom of the upper through hole;

[0016] A threaded hole is arranged at the bottom of the bolt hole, the threaded hole is connected between the lower through hole and the bolt hole, and the bolt hole is communicated between the threaded hole and the upper through hole;

[0017] An inner hexagonal flat bolt is screwed at the bottom of the inner threaded hole, and the inner hexagonal flat bolt is slid in the bolt hole;

[0018] A flat bearing is movably connected to the top of the inner hexagonal flat bolt, and the flat bearing is slid in the upper through hole.

[0019] In the above technical solution:

[0020] The inner side end face of the toothed disc is attached to the outer side end face of the movable toothed disc.

[0021] In the above technical solution:

[0022] The top end face height of the special-shaped pressing plate is lower than the top end face height of the toothed disc and the movable toothed disc.

[0023] Compared with the prior art, the end face toothed disc grinding clamp of the utility model has the beneficial effects that:

[0024] The end face toothed disc is clamped in the inner top and outer pressure mode, the positioning of the toothed disc and the movable toothed disc is accurate, the clamping deformation is prevented, the consistency of the tooth shape, tooth pitch and tooth height of the two toothed discs is ensured, the positioning and repeated positioning accuracy of the product are ensured, and the product quality of the parts applied in batches is improved.

[0025] The special-shaped pressing plate is designed in the clamp, the interference with the grinding wheel during the grinding process is prevented, the follow-up component positioning shaft is added, the use demand of adapting to different size gear grinding machine tools is solved, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a cross-sectional schematic view of the end face toothed disc grinding clamp of the utility model;

[0027] Figure 2 It is a local diagram B schematic view of the utility model;

[0028] Figure 3 It is a local diagram C schematic view of the utility model;

[0029] Figure 4 It is a stepped pad iron schematic view of the utility model.

[0030] Wherein, Figures 1 to 4 The correspondence between the reference signs in the drawings and the component names is as follows:

[0031] 1, fixed gear disc; 2, movable gear disc; 3, clamping body; 4, positioning shaft; 5, plane bearing; 6, internal hexagonal plane bolt; 7, bolt; 8, stepped spacer; 9, special-shaped pressing plate. DETAILED DESCRIPTION

[0032] The specific embodiments and drawings of the utility model are described below. Figures 1-4 The utility model is further described, but the utility model is not limited to these embodiments.

[0033] As Figures 1-4 shown, the utility model discloses a kind of end face gear disc grinding clamps, it include: fixed gear disc 1, movable gear disc 2, positioning assembly, lifting assembly and clamping assembly;The movable gear disc 2 top is provided with central hole;The positioning assembly is connected at the center of grinding machine;The lifting assembly is set in the positioning assembly, for lifting movable gear disc 2;The clamping assembly is used to clamp fixed gear disc 1.

[0034] In the embodiment of the utility model, as Figures 1-4 shown, the positioning assembly includes: clamping body 3 and positioning shaft 4;Upper through-hole is provided at the top center of clamping body 3, and lower through-hole is provided at the bottom center, the movable gear disc 2 bottom is provided with convex shaft, and the convex shaft is matched with the top of upper through-hole;Positioning shaft 4 is connected at the top center of grinding machine, and positioning shaft 4 is matched with lower through-hole.

[0035] In the embodiment of the utility model, as Figures 1-4 shown, the clamping assembly includes: special-shaped pressing plate 9 and stepped spacer 8;Special-shaped pressing plate 9 is connected to the top of clamping body 3 by bolt 7, and one end is clamped at the edge of fixed gear disc 1;A pair of stepped spacers 8 are located between special-shaped pressing plate 9 and clamping body 3.

[0036] In the embodiment of the utility model, as Figures 1-4 shown, it further includes: bolt 7 hole, threaded hole, internal hexagonal plane bolt 6 and plane bearing 5;Bolt 7 hole is provided at the bottom of upper through-hole;Threaded hole is provided at the bottom of bolt 7 hole, and threaded hole is communicated between lower through-hole and bolt 7 hole, and bolt 7 hole is communicated between threaded hole and upper through-hole;Internal hexagonal plane bolt 6 is screwed in threaded hole, and slides in bolt 7 hole;Plane bearing 5 is movably connected to the top of internal hexagonal plane bolt 6, and slides in upper through-hole.

[0037] In the embodiment of the utility model, as Figures 1-4 shown, the inner side end face of fixed gear disc 1 is attached to the outer side end face of movable gear disc 2.

[0038] In the embodiment of the utility model, as shown in Figures 1-4 As shown in the figure, the height of the top end face of the special-shaped pressing plate 9 is lower than the height of the top end face of the fixed gear plate 1 and the movable gear plate 2.

[0039] The implementation process is as follows: firstly, the positioning shaft 4 is installed at the center of the grinding machine bed workbench, the clamping body 3 is placed on the workbench surface and fixed, a group of end face gear plates needing grinding are taken, the movable gear plate 2 and the fixed gear plate 1 are sequentially placed in the clamping body 3 in a hole positioning manner, and the convex shaft at the bottom of the movable gear plate 2 is placed into the upper through hole. Three groups of components composed of the bolt 7, the pair of stepped gaskets 8 and the special-shaped pressing plate 9 are respectively installed at the three corresponding points of the clamping body 3, the position of the special-shaped pressing plate 9 is adjusted, the front section of the pressing plate is ensured to press the outer end face of the fixed gear plate 1, and interference with the grinding wheel is avoided during the grinding process. Then a dial indicator is found and installed on a magnetic table base, the tooth side of the fixed gear plate 1 and the movable gear plate 2 installed together is aligned (the straightness is ensured to be within 0.02 mm), the inner hexagonal wrench is used to rotate and lift the inner hexagonal flat bolt 6 through the gear plate center hole, the flat bearing 5 at the top is driven to move upwards, the movable gear plate 2 is lifted by the inner top, the end face gear plate clamping is performed in this way, and the inside end face positioning of the end face gear plate is ensured to be accurate. Finally, the three groups of components composed of the bolt 7, the pair of stepped gaskets 8 and the special-shaped pressing plate 9 are sequentially used to complete the end face gear plate clamping work process by pressing the fixed gear plate 1, and then the grinding process is started.

[0040] In the description of the utility model, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited, the terms "upper", "lower" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the description of the utility model, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the utility model, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A face gear grinding fixture, comprising a fixed gear and a movable gear, wherein the movable gear is provided with a central hole at the top, characterized in that: a positioning assembly is connected to the center of the grinding machine; a lifting assembly is arranged inside the positioning assembly, which is used to lift the movable gear; a clamping assembly is used to clamp the fixed gear. The positioning assembly comprises: a clamping body, which is provided with an upper through hole at the top center and a lower through hole at the bottom center, and the movable gear is provided with a convex shaft at the bottom, which is matched with the top of the upper through hole; a positioning shaft is connected to the top center of the grinding machine, which is matched with the lower through hole. The clamping assembly comprises: a special-shaped pressing plate, which is connected to the top of the clamping body by bolts, and one end of the special-shaped pressing plate is clamped to the edge of the fixed gear; a pair of stepped shims are arranged between the special-shaped pressing plate and the clamping body. Further comprising: a bolt hole is arranged at the bottom of the upper through hole; a threaded hole is arranged at the bottom of the bolt hole, which is connected between the lower through hole and the bolt hole, and the bolt hole is communicated between the threaded hole and the upper through hole; an internal hexagonal flat bolt is screwed into the internal threaded hole, and the internal hexagonal flat bolt is slidably arranged in the bolt hole; a flat bearing is movably connected to the top of the internal hexagonal flat bolt, and the flat bearing is slidably arranged in the upper through hole.

2. A face gear grinding jig according to claim 1, wherein, 5. The face gear grinding fixture according to claim 1, characterized in that: the inner side surface of the fixed gear is matched with the outer side surface of the movable gear.

6. The face gear grinding fixture according to claim 3, characterized in that: the top end surface height of the special-shaped pressing plate is lower than the top end surface height of the fixed gear and the movable gear. ​ 3. A face gear grinding jig according to claim 2, wherein, ​ ​ ​ 4. A face gear grinding jig according to claim 2, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​

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