Gear grinding machine tool clamp

Abstract

The utility model discloses a gear grinding machine work fixture which comprises a base and clamping mechanisms, the clamping mechanisms are arranged at intervals in the circumferential direction of the base, a workbench used for being matched with a gear workpiece is arranged in the center of the base, each clamping mechanism comprises a clamping jaw device and an ejector rod device, the clamping jaw devices abut against the radial end face of the gear workpiece, and the ejector rod devices are arranged on the base. And the ejector rod device is pressed in a gap of peripheral teeth of the gear workpiece in an abutting manner. According to the gear grinding machine tool clamp, the radial end face of the gear workpiece is clamped through the clamping jaw device, the periphery of the gear workpiece is clamped through the ejector rod device, the gear workpiece can be clamped more stably through the clamp, the machining face of the workpiece is accurately aligned with a grinding mechanism, and the machining precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of grinding machine processing technology, especially a gear grinding machine tool fixture. BACKGROUND

[0002] Gear grinding machine is a kind of processing equipment that polishes gear through grinding mechanism such as grinding wheel. Its processing process first needs to assemble workpiece on workbench, clamps and positions gear, and the clamping mechanism in prior art is usually clamped on the outer circumferential surface of gear, but due to the interval arrangement of gear teeth on the outer circumferential surface of gear, there is gap between gear teeth, and the clamping and positioning can be moved, which causes the workpiece processing surface and grinding mechanism to be not accurately aligned, contact is unstable, processing error is large, and polishing precision is reduced. SUMMARY

[0003] In order to overcome the defects of prior art, the utility model provides a gear grinding machine tool fixture that can stably clamp gear workpiece.

[0004] In order to realize the above purpose, the utility model adopts the technical scheme of a kind of gear grinding machine tool fixture, including base and clamping mechanism, clamping mechanism is arranged along the circumferential interval of base, base center is equipped with workbench for cooperating with gear workpiece, characterized in that, the clamping mechanism includes jaw device and ejector rod device, the jaw device is pressed to the radial end surface of the gear workpiece, and the ejector rod device is pressed in the gap of the gear workpiece outer circumferential gear tooth.

[0005] Further setting is that the ejector rod device includes first ejector rod assembly, and the first ejector rod assembly includes first positioning rod and first positioning seat, one end of the first positioning rod is equipped with top pressure part, the top pressure part is in contact with the gear tooth gap of gear workpiece, the other end of the first positioning rod is connected with driving motor, and the driving motor drives the first ejector rod to move towards the direction close to or away from workbench.

[0006] Further setting is that the ejector rod device includes second ejector rod assembly, and the second ejector rod assembly includes second positioning rod and second positioning seat, the second positioning seat is equipped with mounting hole, one end of the second positioning rod is mounted in the mounting hole and can be adjustably locked on the second positioning seat through adjusting nut, the other end of the second positioning rod extends out of the second positioning seat and is towards workbench, and the extending end of the second positioning rod is equipped with top bead, and the top bead is in contact with the gear tooth gap of gear workpiece.

[0007] Further setting, the jaw device and ejector rod device are arranged along the circumferential interval of the workbench.

[0008] Further, the clamping jaw device comprises a clamping jaw piece and a clamping seat, the clamping seat is installed on the base, the clamping jaw piece can be turned over relative to the clamping seat, the clamping jaw piece comprises a positioning end and a free end, the positioning end of the clamping jaw piece is arranged towards the workbench, the free end of the clamping jaw piece is arranged away from the workbench, a longitudinally extending mounting shaft is arranged in the clamping seat, one shaft end of the mounting shaft extends out of the clamping seat and forms a circumferential positioning connection with the clamping jaw piece, the positioning end and the free end are respectively located on two sides of the mounting shaft, and the other shaft end of the mounting shaft is installed on the rotating disc.

[0009] Further, a limiting structure is installed on the clamping seat and located below the free end of the clamping jaw piece, so as to limit the outward turning of the positioning end of the clamping jaw piece.

[0010] Further, the limiting structure comprises a limiting column, the limiting column is arranged in the base and is fixed through a locking nut, and the exposed part of the limiting column is pressed below the free end of the clamping jaw piece, so as to prevent the outward turning or upward turning of the clamping jaw piece.

[0011] Further, the clamping jaw piece comprises a clamping jaw piece body, a through slot is arranged in the middle part of the clamping jaw piece body, a connecting seat is inserted in the through slot, and the shaft end of the mounting shaft is connected to the connecting seat through a fastener.

[0012] Further, the connecting seat has an inner hole, and the fastener is threadedly connected to the shaft end of the mounting shaft after penetrating through the inner hole of the connecting seat.

[0013] Further, a connecting bolt is also installed on the clamping jaw piece body, and the threaded section of the connecting bolt is locked through the locking nut after penetrating through the clamping jaw piece body and the connecting seat.

[0014] By the above scheme, the gear grinder tool clamp of the utility model clamps the radial end face of the gear workpiece through the clamping jaw device, clamps the outer periphery of the gear workpiece through the ejector rod device, the workpiece is clamped more stably by the clamp, the workpiece machining surface is accurately aligned with the grinding mechanism, and the machining precision is improved.

[0015] The utility model will be further described below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] ATTACHED Figure 1 It is the structure perspective view of the embodiment of the utility model;

[0017] ATTACHED Figure 2 It is the structure top view of the embodiment of the utility model;

[0018] ATTACHED Figure 3Part C-C section view of the embodiment of the utility model;

[0019] Attached Figure 4 The installation structure schematic view of the workbench, the clamping jaw device and the ejector rod device of the embodiment of the utility model;

[0020] Base 1, workbench 2, clamping jaw device 3, ejector rod device 4, gear workpiece 5, first ejector rod assembly 41, first positioning rod 411, first positioning seat 412, second ejector rod assembly 42, second positioning rod 421, second positioning seat 422, mounting hole 4221, adjusting nut 423, top bead 43, clamping jaw piece 31, clamping seat 32, positioning end 311, free end 312, mounting shaft 33, limiting structure 34, limiting column 341, clamping jaw piece body 313, through groove 3131, connecting seat 35, fastener 36, inverted U-shaped groove 351, inner hole 352, connecting bolt 37. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the specification of the present application are for illustrative purposes only and do not indicate the only embodiment.

[0023] In addition, the terms "first", "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0024] In the present application, unless specifically defined and limited otherwise, a first feature "on", "under", "above" or "over" a second feature can be that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0025] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0026] The specific embodiments of the utility model have Figures 1-4 As shown in a gear grinder tool fixture, including base 1 and clamping mechanism, clamping mechanism is along the base 1 circumferential interval arrangement, base 1 center is equipped with the workbench 2 for cooperating with gear workpiece 5, clamping mechanism includes jaw device 3 and ejector rod device 4, jaw device 3 is pressed in the radial end surface of gear workpiece 5, and ejector rod device 4 is pressed in the gap of the outer peripheral gear teeth of gear workpiece 5.

[0027] It should be noted that the clamping mechanism of the tool fixture described above is pressed and clamped to the radial end surface of the gear workpiece 5 by the jaw device 3, and the outer periphery of the gear workpiece 5 is clamped and positioned by the ejector rod device 4, so as to avoid the displacement of the gear workpiece 5 in the axial direction or the rotation of the gear workpiece 5, thereby avoiding the problem of reducing the grinding accuracy.

[0028] Further, the ejector rod device 4 includes a first ejector rod assembly 41, the first ejector rod assembly 41 includes a first positioning rod 411 and a first positioning seat 412, one end of the first positioning rod 411 is provided with a pressing part, the pressing part is in abutting cooperation with the gear gap of the gear workpiece 5, the other end of the first positioning rod 411 is connected with a driving motor, and the driving motor drives the first ejector rod to move towards or away from the workbench 2.

[0029] It should be noted that the first ejector rod assembly 41 is driven by the motor to realize automatic clamping and positioning, wherein the pressing part of the first positioning rod 411 also adopts a top bead 43 structure to adapt to the gap between the gear teeth.

[0030] Further arrangement is that the top rod device 4 comprises a second top rod assembly 42, the second top rod assembly 42 comprises a second positioning rod 421 and a second positioning seat 422, the second positioning seat 422 is provided with a mounting hole 4221, one end of the second positioning rod 421 is mounted in the mounting hole 4221 and is adjustably locked on the second positioning seat 422 through an adjusting nut 423, the other end of the second positioning rod 421 extends out of the second positioning seat 422 and faces the workbench 2, and the extending end of the second positioning rod 421 is provided with a top bead 43 which is in abutting fit with the tooth gap of the gear workpiece 5.

[0031] It should be noted that the second top rod assembly 42 can adjust the extending distance of the second positioning rod 421 manually, in one embodiment, the top rod device 4 adopts a first top rod assembly 41 and two second top rod assemblies 42, the extending distances of the positioning rods in the two second top rod assemblies 42 are adjusted to match different sizes of the gear workpiece 5, and the first top rod assembly 41 is used to realize automatic clamping and positioning, which is convenient for operation. The end of the first positioning rod 411 and the end of the second positioning rod 421 are integrally connected with the top bead 43 which is in abutting fit with the tooth gap of the gear workpiece 5.

[0032] Further arrangement is that the clamping jaw device 3 and the top rod device 4 are arranged along the circumference of the workbench 2. It should be noted that the clamping jaw device 3 is in abutting fit with the radial end face of the gear workpiece 5, and the top rod device 4 is in abutting fit with the outer circumferential surface of the gear workpiece 5, and the two are arranged in a spaced manner, so that the clamping is more balanced and stable.

[0033] Further arrangement is that the clamping jaw device 3 comprises a clamping jaw piece 31 and a clamping seat 32, the clamping seat 32 is mounted on the base 1, the clamping jaw piece 31 can be flipped relative to the clamping seat 32, the clamping jaw piece 31 comprises a positioning end 311 and a free end 312, the positioning end 311 of the clamping jaw piece 31 faces the workbench 2, and the free end 312 of the clamping jaw piece 31 faces away from the workbench 2, a longitudinally extending mounting shaft 33 is provided in the clamping seat 32, one shaft end of the mounting shaft 33 extends out of the clamping seat 32 and forms a circumferential positioning connection with the clamping jaw piece 31, the positioning end 311 and the free end 312 are respectively located on the two sides of the mounting shaft 33, and the other shaft end of the mounting shaft 33 is mounted on the rotating disc.

[0034] It should be noted that the clamping jaw piece 31 can be flipped relative to the clamping seat 32, which can facilitate the positioning and clamping of gear workpieces 5 of different sizes, the clamping jaw piece 31 is in synchronous motion connection with the mounting shaft 33 in the clamping seat 32, and can rotate circumferentially under the drive of the rotating disc, so that the positioning end 311 of the clamping jaw piece 31 rotates around the axial direction of the mounting shaft 33, so that the positioning end 311 can be away from the workbench 2, which is convenient for placing or taking out the gear workpiece 5, and then rotating counterclockwise to realize the positioning action by pressing the positioning end 311 on the gear workpiece 5.

[0035] Further arrangement, the clamping seat 32 is provided with a limiting structure 34, which is located below the free end 312 of the clamping jaw piece 31 to limit the outward turning of the positioning end 311 of the clamping jaw piece 31.

[0036] It should be noted that the limiting structure 34 is located below the free end 312 of the clamping jaw piece 31 to limit the outward turning degree of the positioning end 311 of the clamping jaw piece 31. The height of the exposed part of the limiting column 341 can be adjusted by the locking nut. The exposed part of the limiting column 341 presses below the free end 312 of the clamping jaw piece 31 to prevent the clamping jaw piece 31 from turning outward or upward, so that the positioning end 311 is stably pressed against the back end face of the stator workpiece.

[0037] Further arrangement, the clamping jaw piece 31 comprises a clamping jaw piece body 313, and a through slot 3131 is arranged in the middle of the clamping jaw piece body 313. A connecting seat 35 is inserted into the through slot 3131, and the connecting seat 35 is connected to the shaft end of the mounting shaft 33 through a fastener 36.

[0038] It should be noted that the positioning end 311 and the free end 312 of the clamping jaw piece 31 are respectively located at both ends of the clamping jaw piece body 313 and are integrally connected with the clamping jaw piece 31. The through slot 3131 of the clamping jaw piece 31 is connected in an up-down manner, and the connecting seat 35 serves to connect the clamping jaw piece 31 and the mounting shaft 33. The lower end of the connecting seat 35 is provided with a reverse U-shaped groove 351, and the shaft end of the mounting shaft 33 is inserted into the reverse U-shaped groove 351 to form a more stable butt joint structure.

[0039] Further arrangement, the connecting seat 35 has an inner hole 352, and the fastener 36 is threadedly connected to the shaft end of the mounting shaft 33 after penetrating through the inner hole 352 of the connecting seat 35.

[0040] It should be noted that the fastener 36 is a fastening bolt, the cap end of which is located in the inner hole 352, and the threaded segment of the fastening bolt is connected to the mounting shaft 33 after penetrating through the inner hole 352 and the reverse U-shaped groove 351.

[0041] Further arrangement, the clamping jaw piece body 313 is further provided with a connecting bolt 37, and the threaded segment of the connecting bolt 37 is locked by a locking nut after penetrating through the clamping jaw piece body 313 and the connecting seat 35.

[0042] It should be noted that the clamping jaw piece 31 is circumferentially positioned with the mounting shaft 33 in a radial manner penetrating through the clamping jaw piece body 313 and the connecting seat 35, and at the same time, the clamping jaw piece 31 can be turned over.

[0043] The gear grinder tool clamp of the utility model, through the clamping jaw device 3, the radial end face of the gear workpiece 5 is clamped, through the ejector rod device 4, the outer periphery of the gear workpiece 5 is clamped, so that the clamp clamps the gear workpiece 5 more stably, the workpiece machining surface is accurately aligned with the grinding mechanism, and the machining precision is improved.

[0044] The utility model is not limited to the above-mentioned specific implementation, and each technical feature of the above implementation can be combined arbitrarily, in order to make the description simple, each technical feature in the above implementation is not described all possible combinations, however, as long as the combination of these technical features does not exist contradiction, it should be considered that the range of the present application is recorded. According to the content disclosed in the utility model, the utility model can be implemented by other various specific implementations, or any simple change or change is adopted by the design structure and the thought of the utility model, and falls into the protection scope of the utility model.

Claims

1. A gear grinder tooling fixture comprising a base and clamping mechanisms arranged circumferentially spaced along the base, the base being centrally provided with a worktable for cooperating with a gear workpiece, characterized in that, The clamping mechanism comprises a clamping jaw device and a ejector rod device, the clamping jaw device is pressed against the radial end face of the gear workpiece, and the ejector rod device is pressed against the gap of the gear workpiece peripheral gear teeth.

2. The gear lapper tooling fixture of claim 1, wherein, The ejector rod device comprises a first ejector rod assembly, the first ejector rod assembly comprises a first positioning rod and a first positioning seat, one end of the first positioning rod is provided with a pressing part, the pressing part is in abutting fit with the gear teeth gap of the gear workpiece, and the other end of the first positioning rod is connected with a driving motor, the driving motor drives the first ejector rod to move towards or away from the workbench.

3. The gear lapper tooling fixture of claim 1, wherein, The ejector rod device comprises a second ejector rod assembly, the second ejector rod assembly comprises a second positioning rod and a second positioning seat, the second positioning seat is provided with a mounting hole, one end of the second positioning rod is mounted in the mounting hole and is adjustably locked on the second positioning seat through an adjusting nut, the other end of the second positioning rod extends out of the second positioning seat and faces the workbench, and the extending end of the second positioning rod is provided with a pressing bead, which is in abutting fit with the gear teeth gap of the gear workpiece.

4. The gear lapper tooling fixture of claim 1, wherein, The clamping jaw device and the ejector rod device are arranged in a circumferential interval along the workbench.

5. The gear lapper tooling fixture of claim 1, wherein, The clamping jaw device comprises a clamping jaw piece and a clamping seat, the clamping seat is mounted on the base, the clamping jaw piece can be turned over relative to the clamping seat, the clamping jaw piece comprises a positioning end and a free end, the positioning end of the clamping jaw piece faces the workbench, and the free end of the clamping jaw piece faces away from the workbench, a longitudinally extending mounting shaft is arranged in the clamping seat, one shaft end of the mounting shaft extends out of the clamping seat and forms a circumferential positioning connection with the clamping jaw piece, the positioning end and the free end are respectively located on two sides of the mounting shaft, and the other shaft end of the mounting shaft is mounted on the rotating disc.

6. The gear lapper tooling fixture of claim 5, wherein, A limiting structure is mounted on the clamping seat and located on the downside of the free end of the clamping jaw piece to limit the outward turning of the positioning end of the clamping jaw piece.

7. The gear lapper tooling fixture of claim 6, wherein, The limiting structure comprises a limiting column, the limiting column is arranged in the base and is fixed through a locking nut, and the exposed part of the limiting column is pressed below the free end of the clamping jaw piece to prevent the outward turning or upward turning of the clamping jaw piece.

8. The gear lapper tooling fixture of claim 7, wherein, The clamping jaw piece comprises a clamping jaw piece body, a through slot is arranged in the middle part of the clamping jaw piece body, a connecting seat is inserted in the through slot, and the connecting seat is connected to the shaft end of the mounting shaft through a fastener.

9. The gear lapping machine fixture of claim 8, wherein, The connecting seat has an inner hole, and the fastener is threadedly connected to the shaft end of the mounting shaft after penetrating through the inner hole of the connecting seat.

10. The gear lapper tooling fixture of claim 8, wherein, A connecting bolt is further mounted on the clamping jaw piece body, and the threaded section of the connecting bolt is locked through the locking nut after penetrating through the clamping jaw piece body and the connecting seat.

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