Positioning and fixing device for gear machining

Abstract

The positioning and fixing device for gear machining comprises a gear containing base, two threaded rods, an inner screw cylinder and an inserting plate, a metal limiting ring is horizontally fixed to the upper end of the gear containing base, and the two threaded rods are screwed to the left end and the right end of the metal limiting ring according to the thread principle; first metal limiting pieces are longitudinally installed at the opposite inner ends of the two threaded rods, and the multiple inner screw cylinders are horizontally welded to the inner side of the metal limiting ring; outer screw rods are screwed in the multiple inner screw cylinders according to the thread principle, the design solves the problems that an original device only depends on two pressing plates to clamp and fix a gear, the effect is common, once punching impact is large, the gear is prone to displacement, and the multi-direction pushing clamping and pressing structure is reasonable in structure and good in practicability; and it can be guaranteed that the gear is fixed before punching, the fixing effect is good, and operation and use and clamping and use of other sheet-shaped parts are facilitated.

Description

Technical Field

[0001] The utility model relates to a positioning and fixing device for gear processing, belonging to the technical field of gear processing equipment. Background Art

[0002] Gears are wheel-shaped mechanical parts that transmit torque through the meshing of gear teeth. They can achieve effects such as changing speed and torque, changing the direction of power, etc., and have the advantages of high transmission efficiency, accurate transmission, and a wide power range. Gears are widely used. Before the gear teeth are processed, positioning holes are often opened on the gears for ease of processing. This is done by a punching machine. The workbench of a traditional punching machine is equipped with a tooling for fixing the gears.

[0003] Patent No.: CN105935814A, mentions a fixing device for processing gear positioning holes, which places the gear to be processed on the workbench, and by turning the handle, since the thread on the screw is divided into two parts at the midpoint of the screw, and the threads of the two parts are in opposite directions, the two sliders will synchronously approach the middle position, thereby fixing gears of different specifications; a triangular notch is opened on one side of the pressure plate, and the triangular notches of the two pressure plates are opposite, which can make the gear fixing effect better, but the device only relies on two pressure plates to clamp and fix the gear. The effect is general. Once the impact of punching is large, the gear is easily displaced. Now there is an urgent need for a positioning and fixing device for gear processing to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a positioning and fixing device for gear processing to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and good practicality. A multi-directional push-clamp and press-fit structure is designed to ensure that the gear is fixed before punching, and the fixing effect is good. It is also easy to operate and use and to clamp other sheet parts.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a positioning and fixing device for gear processing, including a gear placement seat, a threaded rod, an inner screw barrel and a plug-in plate, a metal limit ring is horizontally fixed on the upper end of the gear placement seat, two threaded rods are provided, the two threaded rods are screwed together with the left and right ends of the metal limit ring through the thread principle, the first metal limit plates are longitudinally installed on the relative inner ends of the two threaded rods, a plurality of inner screw barrels are provided, and a plurality of the inner screw barrels are horizontally welded to the inner side of the metal limit ring; the plurality of inner screw barrels are all connected An external screw is screwed in through the thread principle, and a second metal limit plate is longitudinally fixed to the relative inner ends of the multiple external screws. Welding blocks are symmetrically welded on the left and right positions of the front upper end of the metal limit ring. Plug-in grooves are provided on the upper sides of the front ends of the two welding blocks. Fixing bolts are inserted at the upper ends of the two welding blocks through the thread principle. Two plug-in boards are provided, and the two plug-in boards are respectively inserted in the two plug-in grooves. The other ends of the two plug-in boards are longitudinally inserted with hand bolts through the thread principle, and the lower ends of the two hand bolts are horizontally fixed with a third metal limit plate.

[0006] Furthermore, mounting screw holes are provided at the corners of the upper end of the gear placement seat.

[0007] Furthermore, hand wheels are longitudinally mounted on the relative outer ends of the two threaded rods.

[0008] Furthermore, a plurality of the annular side surfaces of the outer screws are all fixed with a screw ring.

[0009] Furthermore, a plurality of threaded holes are provided on the upper ends of the two plug-in plates, and the threaded ends of the two fixing bolts are respectively screwed and fixed in two of the threaded holes.

[0010] Furthermore, anti-slip rubber sheets are fixed to the inner sides of the two first metal limiting sheets, the inner sides of the plurality of second metal limiting sheets, and the lower ends of the two third metal limiting sheets.

[0011] The beneficial effects of the utility model: the utility model is a positioning and fixing device for gear processing. Because the utility model adds a metal limit ring, a threaded rod, a hand wheel, a first metal limit plate, an inner screw barrel, an outer screw rod, a tightening ring, a second metal limit plate, a welding block, a plug-in plate, a hand-tightening bolt and a third metal limit plate, our design improvement and actual use have shown that the device has a reasonable structure and good practicality. A multi-directional push-clamp and pressing structure is designed to ensure that the gear is fixed before punching, and the fixing effect is good. It is also convenient for operation and use and for clamping other sheet parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a positioning and fixing device for gear processing of the utility model;

[0014] Figure 2 This is an enlarged schematic diagram of the external screw connection of a positioning and fixing device for gear processing of the utility model;

[0015] Figure 3 This is a schematic diagram of disassembling a plug-in board of a positioning and fixing device for gear processing of the utility model;

[0016] In the figure: 1-gear placement seat, 2-metal limiting ring, 3-threaded rod, 4-handwheel, 5-first metal limiting plate, 6-inner screw barrel, 7-outer screw rod, 8-tightening ring, 9-second metal limiting plate, 10-welding block, 11-plug-in slot, 12-fixing bolt, 13-plug-in plate, 14-threaded hole, 15-hand-tightening bolt, 16-third metal limiting plate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a positioning and fixing device for gear processing, including a gear placement seat 1, a threaded rod 3, an inner screw barrel 6 and a plug-in plate 13. A metal limiting ring 2 is horizontally fixed to the upper end of the gear placement seat 1. Two threaded rods 3 are provided. The two threaded rods 3 are screwed together with the left and right ends of the metal limiting ring 2 through the thread principle. The two threaded rods 3 are longitudinally installed with a first metal limiting piece 5 at the inner ends relative to each other. A plurality of inner screw barrels 6 are provided. The plurality of inner screw barrels 6 are horizontally welded to the inner side of the metal limiting ring 2; the plurality of inner screw barrels 6 are screwed together with an outer screw rod 7 through the thread principle, and the plurality of outer screw rods 7 are longitudinally fixed with a second metal limiting piece 9 at the inner ends relative to each other. Welding blocks 10 are symmetrically welded on the left and right positions of the front upper end of the limit ring 2, and plug-in grooves 11 are opened on the upper sides of the front ends of the two welding blocks 10. Fixing bolts 12 are inserted at the upper ends of the two welding blocks 10 through the thread principle. Two plug-in plates 13 are provided, and the two plug-in plates 13 are respectively inserted in the two plug-in grooves 11. The other ends of the two plug-in plates 13 are longitudinally inserted with hand bolts 15 through the thread principle, and the lower ends of the two hand bolts 15 are horizontally fixed with third metal limit plates 16. This design solves the problem that the original device only relies on two pressure plates to clamp and fix the gear. The effect is generally poor, and once the impact of punching is large, the gear is easily displaced.

[0019] As the first embodiment of the utility model: the upper corners of the gear placement seat 1 are provided with mounting screw holes, and the two threaded rods 3 are longitudinally mounted with hand wheels 4 at the opposite outer ends, and the added hand wheels 4 facilitate the rotation of the two threaded rods 3 in opposite directions. The annular sides of the plurality of external screw rods 7 are all fixed with screw rings 8, and the added screw rings 8 facilitate the rotation of the plurality of external screw rods 7.

[0020] The upper ends of the two plug-in boards 13 are provided with a plurality of threaded holes 14, and the threaded ends of the two fixing bolts 12 are respectively screwed and fixed in two of the threaded holes 14. The two added fixing bolts 12 enable the two plug-in boards 13 to be fixed when they are respectively inserted into the two plug-in slots 11. Anti-skid rubber sheets are fixed to the inner sides of the two first metal stoppers 5, the inner sides of the plurality of second metal stoppers 9, and the lower ends of the two third metal stoppers 16. The added anti-skid rubber sheets can prevent the two first metal stoppers 5, the plurality of second metal stoppers 9, and the two third metal stoppers 16 from directly contacting the gear surface and causing wear.

[0021] As the second embodiment of the present utility model: first, place the untoothed gear horizontally on the upper end of the gear placement seat 1, and make it in the middle of the metal limit ring 2, then rotate the two hand wheels 4 in opposite directions, the two hand wheels 4 can drive the two threaded rods 3 to rotate and move in opposite directions, and then drive the two first metal limit plates 5 to rotate and move in opposite directions, until the two first metal limit plates 5 clamp the left and right ends of the gear, then screw multiple screw rings 8 in the same direction, so that the multiple outer screws 6 can be rotated and moved out in the multiple inner screw barrels 6, until the multiple second metal limit plates 9 are all tightened against the gear, and then the two plug-in plates 13 are respectively inserted into the two plug-in grooves 11, and then tighten the two fixing bolts 12 so that the threaded ends of the two fixing bolts 12 can be respectively screwed and fixed in two of the threaded holes 14, and finally, screw the two hand-tightening bolts 15 in the same direction so that the two third metal limit plates 16 tighten the left front of the upper end of the gear and the right front of the upper end of the gear, and the gear can be fixed, so that it can be subsequently subjected to stable hole opening processing.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A positioning and fixing device for gear processing, comprising a gear placement seat (1), a threaded rod (3), an inner threaded barrel (6) and a plug-in plate (13), characterized in that: A metal limiting ring (2) is horizontally fixed to the upper end of the gear placement seat (1), and two threaded rods (3) are provided. The two threaded rods (3) are screwed together with the left and right ends of the metal limiting ring (2) through the principle of threads, and first metal limiting plates (5) are longitudinally installed at the relative inner ends of the two threaded rods (3); A plurality of the inner screw barrels (6) are provided, and the plurality of the inner screw barrels (6) are horizontally welded to the inner side of the metal limiting ring (2); an outer screw rod (7) is screwed into the inner side of the plurality of the inner screw barrels (6) through the thread principle, and a second metal limiting plate (9) is longitudinally fixed to the inner end of the plurality of the outer screw rods (7). The upper front side of the metal limiting ring (2) is symmetrically welded with welding blocks (10) at left and right positions, and the upper front sides of the two welding blocks (10) are provided with plug-in slots (11). The upper ends of the two welding blocks (10) are provided with fixing bolts (12) through the principle of thread. Two plug-in plates (13) are provided, and the two plug-in plates (13) are respectively inserted into the two plug-in slots (11). The other ends of the two plug-in plates (13) are longitudinally inserted with hand bolts (15) through the principle of thread, and the lower ends of the two hand bolts (15) are horizontally fixed with third metal limiting plates (16).

2. A positioning and fixing device for gear machining according to claim 1, characterized in that: The upper corners of the gear placement seat (1) are all provided with mounting screw holes.

3. A positioning and fixing device for gear machining according to claim 1, characterized in that: Hand wheels (4) are longitudinally mounted on the opposite outer ends of the two threaded rods (3).

4. A positioning and fixing device for gear machining according to claim 1, characterized in that: A screw ring (8) is fixed on the annular side surface of each of the plurality of external screw rods (7).

5. A positioning and fixing device for gear machining according to claim 1, characterized in that: The upper ends of the two plug-in boards (13) are each provided with a plurality of threaded holes (14), and the threaded ends of the two fixing bolts (12) are respectively screwed and fixed in two of the threaded holes (14).

6. A positioning and fixing device for gear machining according to claim 1, characterized in that: Anti-slip rubber sheets are fixed to the inner sides of the two first metal limiting sheets (5), the inner sides of the plurality of second metal limiting sheets (9) and the lower ends of the two third metal limiting sheets (16).

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