End face self-adapting positioning structure for gear axis centering

Abstract

The present application relates to gear processing technical field, and disclose a kind of end face self-adapting positioning structure of gear axis centring, including plate piece frame, the front side of plate piece frame is fixed with cover plate, multiple sets of limiting unit one are equipped on the cover plate, the limiting unit one includes: metal sleeve, the metal sleeve is located plate piece frame rear side;Fastening rod, the fastening rod is inclined, and fastening rod rear end is limited outside metal sleeve;Limiting plate, the limiting plate is located the front side of cover plate, and fastening rod pushes limiting plate movement;The metal sleeve is rotated to enable fastening rod movement, and limiting plate is pushed to fix gear.The present application is pushed and extruded by setting circular column end to gear joint, and the circular column end of cylindrical shape is extruded with the inclined surface of two sides gear joint, so that the position of circular column end and the inclined surface of two sides gear joint contact is relatively same, the center axis of positioning gear is more accurate.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, specifically to an end-face adaptive positioning structure for centering the gear axis. Background Technology

[0002] A gear is a mechanical component with continuously meshing gears on its rim to transmit motion and power.

[0003] Patent No. ZL202120039064.8, entitled "A Gear Machining Centering Fixture," discloses a fixture comprising several jaws that clamp a gear in the middle. One end of each jaw, close to the gear, has an arc-shaped reference end face, with the center of the arc being the center of the gear. A connecting mechanism is provided on each jaw, and a cylindrical needle roller is located at one end of the connecting mechanism. The needle roller is pressed against the gear tooth groove by the reference end face of the jaw, and the axis of the needle roller is parallel to the axis of the gear. This fixture can ensure the coaxiality of the gear's inner hole and pitch circle height during gear internal hole machining, improving machining accuracy.

[0004] The aforementioned patent fixes the gears, but the gears need to be in relative positions during the fixing process, and the gears need to be identical for batch fixing operations. If the gears have different shapes and sizes, a new clamp needs to be set up, which requires a device to center the gear axis. Summary of the Invention

[0005] The purpose of this invention is to provide an end-face adaptive positioning structure for centering the gear axis, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an end-face adaptive positioning structure for centering a gear axis, comprising a plate frame, a cover plate fixed to the front side of the plate frame, and multiple sets of limiting units provided on the cover plate, the limiting unit comprising:

[0007] A metal sleeve, the metal sleeve being located on the rear side of the plate frame;

[0008] The fastening rod is inclined and its rear end is limited to the outside of the metal sleeve;

[0009] A limiting plate is located on the front side of the cover plate, and a fastening rod pushes the limiting plate to move.

[0010] Rotating the metal sleeve causes the fastening rod to move and pushes the limiting plate to fix the gear.

[0011] Preferably, a rear column is fixed to the rear side of the plate frame, the outer side of the rear column has threads, the metal sleeve is sleeved on the outer side of the rear column, and the two are threadedly connected.

[0012] Preferably, a metal ring is fitted on the outer side of the metal sleeve, the metal ring is rotatably disposed on the outer side of the metal sleeve, the end of the fastening rod is located on the outer side of the metal ring, a U-shaped buckle is provided between the fastening rod and the metal ring, and the fastening rod is hinged to the metal ring through the U-shaped buckle.

[0013] Preferably, the outer side of the cover plate has multiple inclined grooves, and a T-shaped slider is slidably disposed in the inclined grooves. The rear side of the T-shaped slider is hinged to the fastening rod, and the front side of the T-shaped slider is fixed to the limiting plate. The limiting plate is fitted to the front side of the cover plate.

[0014] The limiting plate is provided with protective plates on both sides, and the two protective plates are fixed to the front side of the cover plate.

[0015] Preferably, the inner side of the limiting plate is integrally formed with a straight plate, and the inner side of the straight plate is integrally formed with a circular cylindrical end, wherein the circular cylindrical end is a metal cylinder.

[0016] Preferably, the front side of the limiting plate is provided with an inwardly extending longitudinal groove, and the outer side of the limiting plate is provided with a transverse groove that passes through it. The longitudinal groove and the transverse groove are perpendicular to each other and are connected to each other.

[0017] The front side of the limiting plate is provided with an upper straight plate, which extends into the longitudinal groove. A pressure plate is slidably provided in the transverse groove. The outer side of the pressure plate is fixed to the upper straight plate. A compression spring is also fixed on one side of the upper straight plate located in the longitudinal groove. The end of the compression spring is fixed to the inner wall of the longitudinal groove. A circular end is fixed on the inner side of the upper straight plate.

[0018] Preferably, the front side of the cover plate is further provided with a limiting unit two, the limiting unit two including:

[0019] A cylinder, located on the front side of the cover plate;

[0020] A pusher plate, the pusher plate being located on the outside of the cylinder;

[0021] A threaded circular layer, wherein the threaded circular layer is located inside the cylinder and is threadedly connected to the cylinder;

[0022] Rotating the threaded circular layer causes the push plate to move outward, squeezing the inside of the gear sleeved on the outside of the cylinder.

[0023] Preferably, the cover plate has a circular hole on its outer side, the cylinder extends into the circular hole and is fixed to the plate frame by bolts, the outer side of the cylinder has an outer groove communicating with its interior, the two sides of the outer groove extend in an arc shape, two sheet metal blocks are slidably arranged in one of the outer grooves, and a folding rod is hinged to the opposite side of each of the two sheet metal blocks. The two folding rods are also located in the outer groove, and the opposite ends of the two folding rods are hinged to the outer push plate. The two folding rods are inclined outwards.

[0024] Preferably, a limiting end is integrally formed on the inner side of the sheet metal block near the end of the cylinder, and an annular opening is provided on the outer side of the threaded circular layer, with the limiting end extending into the annular opening;

[0025] A rotating shaft for torsion is also fixed to the outer side of the threaded circular layer.

[0026] Preferably, a return spring is also fitted outside the cylinder, and the two sides of the return spring are arranged in a plane.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] (1) The present invention drives the limiting plate to slide inward by rotating the metal sleeve. The sliding distance of multiple limiting plates is the same, thereby clamping the gear and positioning its central axis, which facilitates the processing of the gear.

[0029] (2) By setting a circular cylindrical end, the present invention pushes the circular cylindrical end into the tooth gap. The cylindrical cylindrical end is squeezed against the inclined surfaces of the tooth gap on both sides, so that the contact position between the circular cylindrical end and the inclined surfaces of the tooth gap on both sides is relatively the same, thus making the center axis of the positioning gear more accurate.

[0030] (3) By setting an upper straight plate, the present invention can clamp the gear with the round end first when the gear is held in hand, which can clamp the gear in advance and facilitate operation. At the same time, since the positions of multiple sets of compression springs are the same, the gear position is avoided and the clamping is accurate.

[0031] (4) By rotating the threaded circular layer, the push plates in multiple directions move outward, so that the push plates clamp the gear, thus determining the center of the gear and facilitating the processing of the outer side of the gear.

[0032] (5) The present invention squeezes the circular cylindrical end with the gear, and the front side of the gear is squeezed against the rear side of the upper straight plate under the push of the return spring, so that the small gear is clamped between the circular ends, so that the axes of the two gears are the same, which makes it easier to weld and fix the two gears, and makes the gears suitable for different environments. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of a single limiting unit of the present invention;

[0035] Figure 3 This is a schematic diagram of the cylindrical half-section structure of the present invention;

[0036] Figure 4 For the present invention Figure 3A magnified schematic diagram of the partial structure of B in the diagram;

[0037] Figure 5 This is a schematic diagram of the sheet metal block and threaded circular layer structure of the present invention;

[0038] Figure 6 This is a schematic diagram of the limiting unit structure of the present invention;

[0039] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure of part A in the diagram;

[0040] Figure 8 This is a partial cross-sectional schematic diagram of the limiting plate of the present invention.

[0041] In the diagram: 1. Sheet metal frame; 2. Cover plate; 21. Circular hole; 22. Inclined groove; 3. Limiting unit one; 31. Rear column; 32. Metal sleeve; 33. Metal ring; 34. Fastening rod; 35. T-shaped slider; 36. Protective plate; 37. Limiting plate; 38. Straight plate; 39. Circular column end; 301. U-shaped buckle; 302. Longitudinal groove; 303. Transverse groove; 304. Compression spring; 305. Pressure plate; 306. Upper straight plate; 307. Circular end; 4. Limiting unit two; 41. Cylinder; 42. Outer groove; 43. Sheet metal block; 431. Limiting end; 44. Folding rod; 45. Push plate; 46. Threaded circular layer; 461. Annular opening; 47. Rotating shaft; 5. Return spring. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-8 ,

[0044] Example 1:

[0045] This invention provides a technical solution: an end-face adaptive positioning structure for centering a gear axis, comprising a plate frame 1, a cover plate 2 fixed to the front side of the plate frame 1, and multiple sets of limiting units 3 provided on the cover plate 2, the limiting units 3 including:

[0046] Metal sleeve 32, metal sleeve 32 is located on the rear side of plate frame 1;

[0047] Fastening rod 34 is inclined and its rear end is limited to the outside of metal sleeve 32;

[0048] Limiting plate 37 is located on the front side of cover plate 2, and fastening rod 34 pushes limiting plate 37 to move;

[0049] Rotating the metal sleeve 32 causes the fastening rod 34 to move and pushes the limiting plate 37 to fix the gear.

[0050] A rear column 31 is fixed to the rear side of the plate frame 1. The outer side of the rear column 31 has threads. A metal sleeve 32 is fitted on the outer side of the rear column 31, and the two are threadedly connected, which allows the metal sleeve 32 to move backward.

[0051] A metal ring 33 is fitted on the outer side of the metal sleeve 32. The metal ring 33 is rotatably mounted on the outer side of the metal sleeve 32. The end of the fastening rod 34 is located on the outer side of the metal ring 33. A U-shaped buckle 301 is provided between the fastening rod 34 and the metal ring 33. The fastening rod 34 is hinged to the metal ring 33 through the U-shaped buckle 301. The U-shaped buckle 301 can make the fastening rod 34 engage or disengage, that is, it can control the movement of the limiting plate 37. It is suitable for different gears and gears with some missing teeth.

[0052] The outer side of the cover plate 2 has multiple inclined grooves 22. A T-shaped slider 35 is slidably arranged in the inclined grooves 22. The rear side of the T-shaped slider 35 is hinged to the fastening rod 34. The front side of the T-shaped slider 35 is fixed to the limiting plate 37. The limiting plate 37 is fitted to the front side of the cover plate 2. The T-shaped slider 35 is used for limiting.

[0053] The limiting plate 37 is provided with protective plates 36 on both sides. The two protective plates 36 are fixed to the front side of the cover plate 2 for clamping.

[0054] The inner side of the limiting plate 37 is integrally formed with a straight plate 38, and the inner side of the straight plate 38 is integrally formed with a circular cylindrical end 39, which is a metal cylinder.

[0055] The front side of the limiting plate 37 is provided with an inwardly extending longitudinal groove 302, and the outer side of the limiting plate 37 is provided with a transverse groove 303 that passes through it. The longitudinal groove 302 and the transverse groove 303 are perpendicular to each other and are connected to each other.

[0056] The front side of the limiting plate 37 is provided with an upper straight plate 306, which extends into the longitudinal groove 302. A pressure plate 305 is slidably provided in the transverse groove 303. The outer side of the pressure plate 305 is fixed to the upper straight plate 306. Under the action of the pressure plate 305, the upper straight plate 306 is limited and can only slide. A compression spring 304 is also fixed on one side of the upper straight plate 306 located in the longitudinal groove 302. The end of the compression spring 304 is fixed to the inner wall of the longitudinal groove 302. A circular end 307 is fixed on the inner side of the upper straight plate 306. The compression spring 304 is used for pushing.

[0057] Hold the gear hand on the front side of the cover plate 2, then rotate the metal sleeve 32 to move the metal sleeve 32 outward and pull the fastening rod 34 outward. The inclined fastening rod 34 and one end of it are hinged to the T-shaped slider 35, driving the limiting plate 37 to slide inward. Multiple sets of limiting plates 37 on the outer side slide inward and slide the same distance, thereby clamping the gear and positioning its central axis, which facilitates the processing of the gear.

[0058] Secondly, since the gap between the teeth of different gears is not the same, a cylindrical end 39 is used to push into the tooth gap. The cylindrical end 39 is squeezed against the inclined surfaces of the tooth gap on both sides to achieve the pushing. This makes the contact position between the cylindrical end 39 and the inclined surfaces of the tooth gap on both sides relatively the same. At the same time, different tooth gaps can be squeezed, so that the center axis of the positioning gear is more accurate. Also, the thickness of the straight plate 38 is relatively thin to avoid contact with the gear.

[0059] The upper straight plate 306 is pushed inward under the action of the compression spring 304. When the gear is held by hand, the round end 307 can first clamp the gear, and then gradually tighten the round cylindrical end 39 to clamp the gear, thus achieving the clamping function. The gear can be clamped in advance, which is convenient for operation. At the same time, since the positions of multiple compression springs 304 are the same, the change of gear position is avoided, and the clamping is accurate.

[0060] Example 2:

[0061] Based on Embodiment 1, a second limiting unit 4 is also provided on the front side of the cover plate 2. The second limiting unit 4 includes:

[0062] Cylinder 41, located on the front side of cover plate 2;

[0063] Push plate 45, push plate 45 is located on the outside of cylinder 41;

[0064] Threaded circular layer 46 is located inside cylinder 41 and is threadedly connected to cylinder 41;

[0065] Rotating the threaded circular layer 46 causes the pushing plate 45 to move outward, squeezing the inner side of the gear sleeved on the outside of the cylinder 41.

[0066] A circular hole 21 is provided on the outer side of the cover plate 2. The cylinder 41 extends into the circular hole 21 and is fixed to the plate frame 1 by bolts. An outer groove 42 is provided on the outer side of the cylinder 41 and communicates with its interior. The two sides of the outer groove 42 extend in an arc shape. Two sheet metal blocks 43 are slidably provided in the outer groove 42. The sheet metal blocks 43 are matched with the outer groove 42. A folding rod 44 is hinged to the opposite side of each of the two sheet metal blocks 43. The two folding rods 44 are also located in the outer groove 42. The opposite ends of the two folding rods 44 are hinged to the outer push plate 45. The two folding rods 44 are inclined outward.

[0067] A limiting end 431 is integrally formed on the inner side of the sheet metal block 43 near the end of the cylinder 41, and an annular opening 461 is provided on the outer side of the threaded circular layer 46, with the limiting end 431 extending into the annular opening 461.

[0068] A rotating shaft 47 for torsion is also fixed to the outside of the threaded circular layer 46.

[0069] By rotating the threaded circular layer 46, the threaded circular layer 46 moves, driving the sheet metal block 43 on its outer side to also move, and causing the two bending rods 44 to expand outward, causing the pushing plate 45 to move outward. The pushing plates 45 in multiple directions all move outward, causing the pushing plates 45 to clamp the gear and determine the center of the gear, which facilitates the processing of the outer side of the gear. The cylinder 41 is fixed by bolts, so the limiting unit 4 can be removed for easy operation.

[0070] A return spring 5 is also fitted outside the cylinder 41, and the two sides of the return spring 5 are set as planes;

[0071] The return spring 5 can push the gear outward. When the limiting unit 4 is removed, the gear is pressed against the return spring 5, and the limiting plate 37 moves, so that the cylindrical end 39 is pressed against the gear. At the same time, the front side of the gear is pressed against the rear side of the upper straight plate 306 under the push of the return spring 5, thus limiting the gear. Subsequently, the smaller gear can be clamped between the circular ends 307 to make the axes of the two gears the same, thus limiting the gears and facilitating the welding and fixing of the two gears, making the gears suitable for different environments.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-adaptive positioning structure for centering the gear axis, comprising a plate frame (1), wherein a cover plate (2) is fixed to the front side of the plate frame (1), characterized in that: The cover plate (2) is provided with multiple sets of limiting units (3), and the limiting unit (3) includes: Metal sleeve (32), the metal sleeve (32) is located on the rear side of the plate frame (1); Fastening rod (34), the fastening rod (34) is inclined, and the rear end of the fastening rod (34) is limited to the outside of the metal sleeve (32); A limiting plate (37) is located on the front side of the cover plate (2), and a fastening rod (34) pushes the limiting plate (37) to move; Rotating the metal sleeve (32) causes the fastening rod (34) to move and pushes the limiting plate (37) to fix the gear; The inner side of the limiting plate (37) is integrally formed with a straight plate (38), and the inner side of the straight plate (38) is integrally formed with a circular cylindrical end (39), which is a metal cylinder. The front side of the limiting plate (37) is provided with an inwardly extending longitudinal groove (302), and the outer side of the limiting plate (37) is provided with a transverse groove (303) that passes through it. The longitudinal groove (302) and the transverse groove (303) are perpendicular to each other and are connected to each other. The front side of the limiting plate (37) is provided with an upper straight plate (306), which extends into the longitudinal groove (302). A pressure plate (305) is slidably provided in the transverse groove (303). The outer side of the pressure plate (305) is fixed to the upper straight plate (306). A compression spring (304) is also fixed on one side of the upper straight plate (306) located in the longitudinal groove (302). The end of the compression spring (304) is fixed to the inner wall of the longitudinal groove (302). A circular end (307) is fixed on the inner side of the upper straight plate (306).

2. The end-face adaptive positioning structure for gear axis centering according to claim 1, characterized in that: The rear side of the plate frame (1) is fixed with a rear column (31), the outer side of the rear column (31) has threads, the metal sleeve (32) is sleeved on the outer side of the rear column (31), and the two are threadedly connected.

3. The end-face adaptive positioning structure for gear axis centering according to claim 1, characterized in that: A metal ring (33) is fitted on the outside of the metal sleeve (32). The metal ring (33) is rotatably disposed on the outside of the metal sleeve (32). The end of the fastening rod (34) is located on the outside of the metal ring (33). A U-shaped buckle (301) is provided between the fastening rod (34) and the metal ring (33). The fastening rod (34) is hinged to the metal ring (33) through the U-shaped buckle (301).

4. The end-face adaptive positioning structure for gear axis centering according to claim 1, characterized in that: The outer side of the cover plate (2) has multiple inclined grooves (22), and a T-shaped slider (35) is slidably provided in the inclined grooves (22). The rear side of the T-shaped slider (35) is hinged to the fastening rod (34), and the front side of the T-shaped slider (35) is fixed to the limiting plate (37). The limiting plate (37) is fitted to the front side of the cover plate (2). The limiting plate (37) is provided with protective plates (36) on both sides, and the two protective plates (36) are fixed to the front side of the cover plate (2).

5. The end-face adaptive positioning structure for gear shaft centering according to claim 1, characterized in that: The front side of the cover plate (2) is also provided with a limiting unit two (4), the limiting unit two (4) including: A cylinder (41) is located on the front side of the cover plate (2); A push plate (45) is located on the outside of the cylinder (41); A threaded circular layer (46) is located inside the cylinder (41) and is threadedly connected to the cylinder (41); Rotating the threaded circular layer (46) causes the pushing plate (45) to move outward, squeezing the inside of the gear sleeved on the outside of the cylinder (41).

6. The end-face adaptive positioning structure for gear axis centering according to claim 5, characterized in that: The cover plate (2) has a circular hole (21) on its outer side. The cylinder (41) extends into the circular hole (21) and is fixed to the plate frame (1) by bolts. The outer side of the cylinder (41) has an outer groove (42) that communicates with its interior. The two sides of the outer groove (42) extend in an arc shape. Two sheet metal blocks (43) are slidably arranged inside one of the outer grooves (42). A folding rod (44) is hinged to the opposite side of each of the two sheet metal blocks (43). The two folding rods (44) are also located inside the outer groove (42). The opposite ends of the two folding rods (44) are hinged to the outer push plate (45). The two folding rods (44) are inclined outward.

7. The end-face adaptive positioning structure for gear axis centering according to claim 6, characterized in that: A limiting end (431) is integrally formed on the inner side of the sheet metal block (43) near the end of the cylinder (41), and an annular opening (461) is provided on the outer side of the threaded circular layer (46), with the limiting end (431) extending into the annular opening (461). The outer side of the threaded circular layer (46) is also fixed with a rotating shaft (47) for torsion.

8. The end-face adaptive positioning structure for gear shaft centering according to claim 6, characterized in that: A reset spring (5) is also fitted outside the cylinder (41), and the two sides of the reset spring (5) are arranged in a plane.

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