Clamp for gear machining

Abstract

The utility model is suitable for the technical field of gear clamps, and provides a clamp for gear machining. The base is fixed at the central position of the bottom of the fixed disc through a bolt; the rotating disc rotates at the top of the fixed disc; the limiting column is welded at the central position of the top of the turntable; the groove is formed in the outer side wall of the fixed disc; the hydraulic oil cylinder is fixed on the inner side wall of the groove through a bolt; the rotating plate is fixed at the output end of the hydraulic oil cylinder; the gear rotates after making contact with the protruding teeth in linear motion, the protruding teeth can be fully inserted into tooth grooves in the gear in a matched mode, circumferential limiting of the gear is achieved, circumferential deflection of the gear is avoided, and the gear clamping operation is simple and convenient; and it can be guaranteed that gears on the gear are gradually exposed while the three convex teeth clamp and position the gear, and then grinding and polishing of tooth grooves in the gear are completed while the gear is stably clamped.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear clamps, and in particular relates to a clamp for gear processing. Background Art

[0002] Gears are mechanical elements with teeth on the rim that can continuously mesh to transmit motion and power. They are toothed mechanical parts that can mesh with each other. The diameter of the large gear is twice the diameter of the small gear. Gears and gear products are important basic parts of mechanical equipment. The main transmission components of most mechanical complete sets of equipment are gear transmissions. They are extremely widely used in mechanical transmission and the entire mechanical field.

[0003] In the related art, in order to make the gear clamped more stably, a convex tooth that cooperates with the tooth groove of the gear is provided on the clamping jaw. During clamping, the clamping jaw clamps the gear and the convex tooth on the clamping jaw is inserted into the tooth groove of the gear. In this way, the cooperation between the convex tooth and the wheel groove of the gear can further limit the gear circumferentially to prevent it from circumferential deflection. However, since the convex tooth needs to be inserted into the tooth groove of the gear in the end and the convex tooth moves synchronously with the clamping jaw, the position of the gear needs to be adjusted when the clamp is opened to ensure that a certain tooth groove of the gear corresponds to the position of the convex tooth. Otherwise, when the clamping jaws are finally closed and clamped, the convex tooth is difficult to be inserted into the tooth groove of the gear, and the clamping purpose cannot be achieved. Moreover, the tooth groove of the gear is blocked by clamping the outer side of the gear with the clamping jaw, and operation cannot be performed when grinding and polishing the tooth groove of the gear.

[0004] Therefore, a gear machining fixture is proposed. Utility Model Content

[0005] The utility model provides a clamp for gear processing, aiming to solve the above problems.

[0006] The utility model is implemented as follows: a gear processing fixture comprises: a fixed plate; a base fixed at the central position of the bottom of the fixed plate by bolts; and a turntable rotating on the top of the fixed plate; a limit column welded at the central position of the top of the turntable; a groove opened on the outer wall of the fixed plate; a hydraulic cylinder fixed to the inner wall of the groove by bolts; a turntable fixed to the output end of the hydraulic cylinder; a first motor fixed at the central position of the outer wall of the turntable by bolts; a first ball screw fixed to the output end of the first motor; a movable plate fixed to the nut seat on the first ball screw by a nut; a convex tooth welded at the central position of the outer wall of the movable plate; a second motor fixed to the central position of the top of the movable plate by bolts; a second ball screw fixed to the output end of the second motor; a pressure plate fixed to the nut seat on the second ball screw by a nut; and a gear sleeved on the outside of the limit column.

[0007] Preferably, there are four grooves in total, and the four grooves are distributed in a circular shape on the outer side wall of the fixed disk.

[0008] Preferably, a concave cavity is provided on an outer wall of one side of the fixed disk near the outer side of the rotating plate, and the rotating plate and the concave cavity are rotatably connected.

[0009] Preferably, a through groove is provided at a central position of the top of the rotating plate and at a central position of an outer wall of one side of the movable plate.

[0010] Preferably, the convex teeth match and fit with the tooth grooves on the gear.

[0011] Preferably, the cross section of the pressing plate is an L-shaped structure.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] By rotating the gear after it contacts the convex tooth of linear motion, the convex tooth can be fully fitted into the tooth groove on the gear, thereby realizing circumferential limitation of the gear and preventing it from circumferential deflection. The gear clamping operation is simple and convenient. By rotating the four rotating plates in sequence, the three convex teeth can be ensured to clamp the gear in position while the gear on the gear is gradually exposed, thereby achieving the grinding and polishing of the tooth groove on the gear while the gear is stably clamped, and the grinding and polishing operation will not be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the fixed disk structure of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the rotating plate and the moving plate of the utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point A in .

[0018] In the figure: 1. fixed plate; 2. base; 3. turntable; 4. limit column; 5. groove; 6. hydraulic cylinder; 7. turn plate; 8. first motor; 9. first ball screw; 10. moving plate; 11. convex teeth; 12. second motor; 13. second ball screw; 14. pressure plate; 15. gear. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model provides a gear processing fixture, such as Figure 1-4 As shown, it includes a fixed plate 1, a base 2 is welded at the central position of the bottom of the fixed plate 1, and a turntable 3 is rotatably connected to the top of the fixed plate 1, a limiting column 4 is welded at the central position of the top of the turntable 3, a groove 5 is opened on the outer wall of one side of the fixed plate 1, a hydraulic cylinder 6 is fixedly connected to the inner wall of one side of the groove 5 by bolts, the hydraulic cylinder 6 is fixedly connected to a turntable 7 through the output end of one side thereof, a first motor 8 is fixedly connected to the center of the outer wall of one side of the turntable 7 away from the fixed plate 1 by bolts, the first motor 8 is fixedly connected to a first ball screw 9 through the output end of one side thereof, and the first ball screw 9 is fixedly connected to the first ball screw 9. The nut seat on the ball screw 9 is fixedly connected to the movable plate 10 through a nut, through grooves are provided at the top center position of the rotating plate 7 and at the center position of the outer wall of one side of the movable plate 10, a convex tooth 11 is welded at the center position of the outer wall of one side of the movable plate 10, the top center position of the movable plate 10 is fixedly connected to the second motor 12 by bolts, the second motor 12 is fixedly connected to the second ball screw 13 through the output end of one side thereof, the nut seat on the second ball screw 13 is fixedly connected to the pressure plate 14 through a nut, the cross section of the pressure plate 14 is an L-shaped structure, and a gear 15 is sleeved on the outer side of the limit column 4.

[0022] It should be noted that, since it is difficult for the existing gear clamp to make the convex teeth just insert into the tooth groove of the gear and the tooth groove of the gear is blocked, it is impossible to operate when the gear tooth groove is being ground and polished. In this embodiment, the gear 15 contacts the convex tooth 11 in linear motion and then rotates, so that the convex tooth 11 can fully fit into the tooth groove on the gear 15, thereby realizing circumferential limitation of the gear 15 and preventing it from circumferential deflection. The clamping operation of the gear 15 is simple and convenient. Through the sequential rotation of the four rotating plates 7, the three convex teeth 11 can be ensured to clamp and position the gear 15 while the gear on the gear 15 is gradually exposed, thereby achieving the grinding and polishing of the tooth groove on the gear 15 while stably clamping the gear 15, and the grinding and polishing operation will not be blocked.

[0023] Specifically, in the present embodiment, the present scheme mainly comprises a rotating plate 7 and a convex tooth 11. When in use, the central axis hole of the gear 15 is sleeved on the limiting column 4, the gear 15 is placed on the rotating disk 3, and the rotating disk 3 supports the gear 15. At this time, the first motor 8 is controlled to work, and the first motor 8 drives the first ball screw 9 to rotate through the output end on one side thereof. The movable plate 10 on the first ball screw 9 moves on the rotating plate 7, and the convex tooth 11 on the rotating plate 7 moves synchronously. The convex tooth 11 contacts with the gear 15 during the movement, and the convex tooth 11 is gradually inserted into the tooth groove on the gear 15. Since the tooth groove on the gear 15 matches and fits with the convex tooth 11, and through the rotation of the rotating disk 3 on the fixed disk 1, the convex tooth 11 pushes the gear 15 to rotate during the linear movement until the convex tooth 11 fully fits and inserts into the tooth groove on the gear 15, and the four convex teeth 11 are used to realize the positioning and clamping of the gear 15 in the horizontal direction. At this time, the second motor 12 drives the second ball screw 9 through the output end on one side thereof. The lever 13 rotates, and the pressure plate 14 on the second ball screw 13 moves downward, and the pressure plate 14 contacts the top of the gear 15 to press the gear 15, thereby clamping the gear 15 in the vertical direction. When it is necessary to grind and polish the inner wall of the tooth groove of the gear 15, the output ends of the first motor 8 and the second motor 12 on one of the rotating plates 7 are controlled to rotate in the opposite direction, and the movable plate 10 and the pressure plate 14 are disengaged from the gear 15. Then the hydraulic cylinder 6 corresponding to this rotating plate 7 works, and the hydraulic cylinder 6 drives the rotating plate 7 to rotate downward 90 degrees through the output end on one side. At this time, the gear 15 is clamped by three convex teeth 11 to still ensure stability. At this time, most of the tooth grooves of the gear 15 are exposed, and the worker can use tools to grind and polish the tooth grooves of the gear 15. When it is necessary to grind and polish all the tooth grooves on the gear 15, one of the four rotating plates 7 is controlled to rotate in turn according to the above method, so that the gear 15 can be fully polished while being stably clamped.

[0024] In a further preferred embodiment of the present invention, Figure 2 and Figure 4As shown, there are four grooves 5, and the four grooves 5 are distributed in a circular shape on the outer wall of the fixed disk 1. A concave cavity is opened on the outer wall of one side of the fixed disk 1 near the outer side of the rotating plate 7, and the rotating plate 7 is rotatably connected to the concave cavity.

[0025] In this embodiment, four independent hydraulic cylinders 6 can be provided by using the four grooves 5 , and then four rotating plates 7 can be provided. The four rotating plates 7 can be used to stably clamp the gear 15 .

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, the protruding teeth 11 and the tooth grooves on the gear 15 match each other.

[0027] In this embodiment, the gear 15 can be precisely positioned and clamped.

[0028] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0029] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0030] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A gear processing fixture, characterized in that: include: Fixed plate (1); A base (2) fixed at the center of the bottom of the fixing plate (1) by bolts; and A rotating disk (3) rotating on the top of the fixed disk (1); A limiting column (4) welded to the center of the top of the rotating disk (3); A groove (5) formed on the outer side wall of the fixing plate (1); A hydraulic cylinder (6) fixed to the inner wall of the groove (5) by bolts; A rotating plate (7) fixed to the output end of the hydraulic cylinder (6); A first motor (8) fixed to the center of the outer side wall of the rotating plate (7) by means of bolts; A first ball screw (9) fixed to the output end of the first motor (8); A movable plate (10) fixed to a nut seat on the first ball screw (9) via a nut; A convex tooth (11) welded to the central position of the outer side wall of the movable plate (10); A second motor (12) fixed at the top center of the moving plate (10) by bolts; a second ball screw (13) fixed to an output end of the second motor (12); A pressure plate (14) fixed to a nut seat on the second ball screw (13) via a nut; A gear (15) is sleeved on the outside of the limiting column (4).

2. A gear processing fixture as claimed in claim 1, characterized in that: There are four grooves (5) in total, and the four grooves (5) are distributed in a circular shape and are opened on the outer side wall of the fixed disk (1).

3. A gear processing fixture as claimed in claim 1, characterized in that: A concave cavity is provided on an outer wall of one side of the fixed disk (1) at a position close to the outer side of the rotating plate (7), and the rotating plate (7) and the concave cavity are rotatably connected.

4. A gear processing fixture as claimed in claim 1, characterized in that: A through groove is provided at the central position of the top of the rotating plate (7) and at the central position of the outer wall of one side of the moving plate (10).

5. A gear processing fixture as claimed in claim 1, characterized in that: The protruding teeth (11) and the tooth grooves on the gear (15) match and fit together.

6. A gear processing fixture as claimed in claim 1, characterized in that: The cross section of the pressing plate (14) is an L-shaped structure.

Images