A tooling fixture for gear machining

Abstract

The utility model belongs to gear clamp technical field especially relates to a frock clamp for gear processing, including base, the bottom fixedly connected with mounting seat of base, be equipped with a plurality of sliding slot on the base, mounting seat fixedly installed with gas cavity, gas cavity still is connected with base fixedly, mobile axle is connected with gas cavity through a plurality of sleeve pipes, mobile axle is connected with first connecting shaft through linkage shaft, gas cavity still is connected with air pipe, first connecting shaft is rotatively connected with second connecting shaft in the one end away from linkage shaft, the one end fixedly connected with outer clamp axle of second connecting shaft away from first connecting shaft, the one end of first connecting shaft near linkage shaft is inserted with inner clamp axle, the utility model can realize the clamping action of gear to the outer diameter or the inner diameter of gear, can adapt to the need of different processing environment, can adapt to different types of gear and different size gear, has extensive clamping fixed effect.

Description

Technical Field

[0001] This utility model belongs to the field of gear fixture technology, and in particular relates to a tooling fixture for gear processing. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that continuously meshes to transmit motion and power. Gears are widely used in power transmission. Based on the position of the teeth relative to a cylinder, they can be divided into internal gears and external gears. When machining gears, appropriate tooling fixtures are needed to fix them in place before the surface is machined.

[0003] CN222470980U discloses a fixture for gear processing, including a base, a rotary motor and a rotating shaft mounted on the top of the base via a support plate, a fixing pin mounted on the rotating shaft via a telescopic rod, a slider and a threaded rod mounted on the top of the base via a mounting shell, a fixing plate mounted on the slider, and a limiting sleeve mounted on the side wall of the fixing plate.

[0004] As is known from the existing technology, when clamping gears, they can only be clamped from the outside or the inside. The existing fixtures have limited adaptability. Different gears and processing environments require different clamping methods. When it is necessary to perform full processing on the surface of the gear, the fixture needs to be changed to adapt to the processing needs. Utility Model Content

[0005] This utility model addresses the problem in the prior art that when clamping gears, existing fixtures can only be clamped from the outside or the inside, which limits their adaptability. Different gears and processing environments require different clamping methods, and when the surface of a gear needs to be fully processed, the fixture needs to be changed to adapt to the processing requirements. Therefore, this utility model proposes a tooling fixture for gear processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tooling fixture for gear processing includes a base, a mounting seat fixedly connected to the bottom of the base, multiple sliding grooves on the base, an air chamber fixedly mounted on the mounting seat, the air chamber being fixedly connected to the base, a movable shaft connected to the air chamber through multiple sleeves, a first connecting shaft connected to the movable shaft through a linkage shaft, and an air pipe connected to the air chamber.

[0008] The first connecting shaft is rotatably connected to a second connecting shaft at the end away from the linkage shaft. The second connecting shaft is fixedly connected to an outer clamping shaft at the end away from the first connecting shaft. An inner clamping shaft is inserted into the end of the first connecting shaft near the linkage shaft. A support shaft is also fixedly connected to the end of the first connecting shaft near the linkage shaft. A first spring is connected between the second connecting shaft and the support shaft. A second spring is connected between the lower end of the inner clamping shaft and the lower end of the support shaft. An outer clamping shaft and an inner clamping shaft are slidably arranged on each of the slide grooves.

[0009] Preferably, the ends of the linkage shaft and the moving shaft away from the first connecting shaft are fixedly connected together. A piston is provided at the end of the moving shaft facing the first connecting shaft. The piston is slidably installed in the sleeve. Two sleeves are respectively provided on the side of the air chamber facing one of the first connecting shafts. The moving shaft is U-shaped and its two ends are slidably inserted into the two sleeves on the same side.

[0010] Preferably, a support block is fixedly connected to the lower end of the support shaft, the support block slides on the surface of the mounting base, the two ends of the second spring are fixedly connected to the lower end of the inner clamping shaft and the upper surface of the support block respectively, the two ends of the first spring are fixedly connected to the lower surface of the second connecting shaft and the side of the support shaft respectively, and both the first spring and the second spring are connected to a circuit.

[0011] Preferably, each of the outer clamping shafts has a locking part at the end away from the second connecting shaft, and the upper end of the locking part is inclined toward the air cavity.

[0012] Preferably, each of the outer clamping shafts has a protrusion on its inner wall.

[0013] Preferably, the sleeve is connected to the side of the air chamber, the upper surface of the air chamber is fixedly connected to the base, the lower surface of the air chamber is fixedly connected to the mounting seat through the ring, the center of the lower surface of the air chamber is connected to the air pipe, and the air pipe is connected to an air pump.

[0014] Preferably, a positioning part is fixedly provided at the upper end of the inner clamping shaft, the positioning part is used for limiting the position, and a positioning groove is provided on the first connecting shaft at the position through which the inner clamping shaft passes, the positioning groove is used to accommodate the positioning part.

[0015] Preferably, the mounting base has multiple holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This device clamps gears by their outer or inner diameter, adapting to different processing environments and gears of different types and sizes, providing a wide range of clamping and fixing effects.

[0018] 2. When it is necessary to clamp the outer diameter of the gear, the inner clamping shafts must first be retracted. The second spring is energized to contract it, so that the positioning part is embedded in the positioning groove, and the gear is placed on the surface of the base. The outer diameter of the gear will be clamped by the outer clamping shafts.

[0019] 3. When clamping the inner diameter of the gear, first retract each outer clamping shaft, and by energizing the first spring, drive the second connecting shaft to rotate relative to the first connecting shaft to below the surface of the base. Each inner clamping shaft passes through the inner diameter of the gear and clamps it through the inner diameter of the gear. Attached Figure Description

[0020] Figure 1 This is a top view of a tooling fixture for gear machining proposed in this utility model.

[0021] Figure 2 This is a bottom view of the tooling fixture for gear processing proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the air chamber's installation structure on the mounting base;

[0023] Figure 4 This is a schematic diagram of the internal structure of a tooling fixture for gear processing proposed in this utility model;

[0024] Figure 5 for Figure 3 Enlarged view of the structure at point A;

[0025] Figure 6 This is a schematic diagram of the installation structure of the outer clamping shaft and the inner clamping shaft;

[0026] Figure 7 This is a schematic diagram of the connection structure of the air chamber, sleeve, and trachea.

[0027] In the diagram: 1. Base; 2. Mounting seat; 3. Inner clamping shaft; 4. Outer clamping shaft; 5. Air pipe; 6. Second connecting shaft; 7. Linkage shaft; 8. Moving shaft; 9. Sleeve; 10. First connecting shaft; 11. Slide groove; 12. First spring; 13. Second spring; 14. Air chamber; 15. Locking part; 16. Piston; 17. Support shaft; 18. Positioning part; 19. Protrusion; 20. Positioning groove; 21. Support block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Reference Figures 1-3 A tooling fixture for gear processing includes a base 1, a mounting seat 2 fixedly connected to the bottom of the base 1, a plurality of sliding grooves 11 provided on the base 1, an air chamber 14 fixedly installed on the mounting seat 2, the air chamber 14 being fixedly connected to the base 1, the air chamber 14 being connected to a moving shaft 8 through a plurality of sleeves 9, the moving shaft 8 being connected to a first connecting shaft 10 through a linkage shaft 7, and the air chamber 14 being connected to an air pipe 5.

[0031] The end of the first connecting shaft 10 away from the linkage shaft 7 is rotatably connected to the second connecting shaft 6. The end of the second connecting shaft 6 away from the first connecting shaft 10 is fixedly connected to the outer clamping shaft 4. The end of the first connecting shaft 10 near the linkage shaft 7 is inserted with the inner clamping shaft 3. The end of the first connecting shaft 10 near the linkage shaft 7 is also fixedly connected to the support shaft 17. The second connecting shaft 6 and the support shaft 17 are connected with the first spring 12. The lower end of the inner clamping shaft 3 and the lower end of the support shaft 17 are connected with the second spring 13. Each slide groove 11 is slidably provided with an outer clamping shaft 4 and an inner clamping shaft 3.

[0032] The mounting base 2 has multiple holes. When installing this device, it is installed through the holes in the mounting base 2, and bolts are passed through the mounting base 2 for fixing.

[0033] Reference Figures 3-4 The ends of the linkage shaft 7 and the moving shaft 8 away from the first connecting shaft 10 are fixedly connected together. A piston 16 is provided at the end of the moving shaft 8 facing the first connecting shaft 10. The piston 16 is slidably installed in the sleeve 9. Two sleeves 9 are respectively provided on the side of the air chamber 14 facing one of the first connecting shafts 10. The moving shaft 8 is U-shaped, and its two ends are slidably inserted into the two sleeves 9 on the same side. The first connecting shaft 10 on one side is equipped with two sleeves 9 to ensure stability during movement and also to increase the clamping force. When air is pumped out of the sleeve 9, the moving shaft 8 can be moved accordingly through the intermediate sealed piston 16, thereby driving the first connecting shaft 10 fixedly connected to the linkage shaft 7 to move accordingly.

[0034] Reference Figure 6A support block 21 is fixedly connected to the lower end of the support shaft 17. The support block 21 slides on the surface of the mounting base 2. The two ends of the second spring 13 are fixedly connected to the lower end of the inner clamping shaft 3 and the upper surface of the support block 21, respectively. The two ends of the first spring 12 are fixedly connected to the lower surface of the second connecting shaft 6 and the side of the support shaft 17, respectively. Both the first spring 12 and the second spring 13 are connected to a circuit. When the first spring 12 and the second spring 13 are energized, they can contract. The contraction of the first spring 12 causes the second connecting shaft 6 to rotate relative to the first connecting shaft 10, so that the outer clamping shaft 4 is brought to a position below the first connecting shaft 10. When the second spring 13 contracts, it can cause the inner clamping shaft 3 to move downward relative to the first connecting shaft 10.

[0035] Each outer clamping shaft 4 has a locking part 15 at the end away from the second connecting shaft, and the upper end of the locking part 15 is inclined toward the air chamber 14. The upper end of the outer clamping shaft 4 is set to be inclined inward, so as to limit the gear and lock the edge position when clamping.

[0036] Each outer clamping shaft 4 has a protrusion 19 on its inner wall. The protrusion 19 is used to engage with the outer diameter of the gear. When the outer diameter is a tooth groove, the protrusion 19 is embedded in the tooth groove for easy clamping and fixing.

[0037] Reference Figure 7 The sleeve 9 is connected to the side of the air chamber 14. The upper surface of the air chamber 14 is fixedly connected to the base 1, and the lower surface of the air chamber 14 is fixedly connected to the mounting base 2 through a ring. The center of the lower surface of the air chamber 14 is connected to the air pipe 5, and the air pipe 5 is connected to an air pump. The air pump inflates or deflates the air chamber 14 through the air pipe 5. The multiple sleeves 9 are arranged in pairs, and each pair is connected to the side of the air chamber 14 to evenly inflate or deflate each sleeve 9.

[0038] Reference Figure 3 , Figure 5 A positioning part 18 is fixedly provided at the upper end of the inner clamping shaft 3. The positioning part 18 is used for limiting the position. A positioning groove 20 is provided on the first connecting shaft 10 at the position through which the inner clamping shaft 3 passes. The positioning groove 20 is used to accommodate the positioning part 18. The positioning part 18 plays a limiting role. When the inner clamping shaft 3 extends out, the positioning part 18 at the upper end of the inner clamping shaft 3 can lock the inner diameter position of the gear. When not in use, it can be embedded into the positioning groove 20 and hidden.

[0039] Reference Figure 6When clamping the gear, when it is necessary to clamp the outer diameter of the gear, firstly, each inner clamping shaft 3 needs to be retracted, and each second spring 13 is energized to contract it. The contraction of the second spring 13 can drive the inner clamping shaft 3 to move closer to the support block 21, so that the positioning part 18 can be embedded in the positioning groove 20, and the gear is placed on the surface of the base 1. The outer diameter range of the gear will be clamped by each outer clamping shaft 4, and the edge of the gear is limited by the locking part 15.

[0040] Reference Figure 3 When clamping the outer diameter, the air pipe 5 draws air into the air chamber 14 through the air pump. When drawing air, the change in air pressure in the sleeve 9 will drive each piston 16 to move closer to the air chamber 14, which in turn drives the moving shaft 8. The moving shaft 8 drives the first connecting shaft 10 to move closer to the air chamber 14, that is, closer to the center of the base 1, through the linkage shaft 7. Finally, the outer clamping shafts 4 move closer to each other along the slide groove 11, so as to achieve the effect of clamping the gear from the outside.

[0041] Reference Figure 6 When clamping the inner diameter of the gear, the outer clamping shafts 4 need to be retracted first, and the first springs 12 are energized. The energized and contracted first springs 12 will cause the second connecting shaft 6 to rotate relative to the first connecting shaft 10, so that the second connecting shaft 6 is close to the support shaft 17. The outer clamping shafts 4 will flip to a position below the surface of the base 1. The inner clamping shafts 3 pass through the inner diameter of the gear and are far apart from each other. The gear is clamped by the inner diameter of the gear. The second connecting shaft 6 and the sleeve 9 are staggered. The sleeve 9 is set on both sides of the second connecting shaft 6 and they do not interfere with each other.

[0042] Reference Figure 3 When clamping the inner diameter, the air pump fills the air chamber 14 with air through the air pipe 5. The increased air pressure in the air chamber 14 will push the moving shaft 8 and the linkage shaft 7 away from each other. Then, the linkage shaft 7 will drive the first connecting shaft 10 away from each other, thereby the first connecting shaft 10 will drive the connected inner clamping shafts 3 away from each other, so as to achieve the effect of clamping the gear from the inside.

[0043] This device clamps gears by their outer or inner diameter, adapting to different processing environments and gear types and sizes, providing a wide range of clamping and fixing effects.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling fixture for gear machining, comprising a base (1), characterized in that, The bottom of the base (1) is fixedly connected to the mounting base (2). The base (1) has multiple sliding grooves (11). The mounting base (2) has a fixed air chamber (14). The air chamber (14) is also fixedly connected to the base (1). The air chamber (14) is connected to a moving shaft (8) through multiple sleeves (9). The moving shaft (8) is connected to a first connecting shaft (10) through a linkage shaft (7). The air chamber (14) is also connected to an air pipe (5). The first connecting shaft (10) is rotatably connected to the end away from the linkage shaft (7) with a second connecting shaft (6). The end of the second connecting shaft (6) away from the first connecting shaft (10) is fixedly connected to an outer clamping shaft (4). An inner clamping shaft (3) is inserted on the end of the first connecting shaft (10) close to the linkage shaft (7). A support shaft (17) is also fixedly connected to the end of the first connecting shaft (10) close to the linkage shaft (7). A first spring (12) is connected between the second connecting shaft (6) and the support shaft (17). A second spring (13) is connected between the lower end of the inner clamping shaft (3) and the lower end of the support shaft (17). An outer clamping shaft (4) and an inner clamping shaft (3) are slidably arranged on each of the slide grooves (11).

2. The tooling fixture for gear machining according to claim 1, characterized in that, The linkage shaft (7) and the moving shaft (8) are fixedly connected together at the ends away from the first connecting shaft (10). A piston (16) is provided at the end of the moving shaft (8) facing the first connecting shaft (10). The piston (16) is sealed and slidably installed in the sleeve (9). Two sleeves (9) are respectively provided on the side of the air chamber (14) facing one of the first connecting shafts (10). The moving shaft (8) is U-shaped, and its two ends are slidably inserted into the two sleeves (9) on the same side.

3. The tooling fixture for gear machining according to claim 1, characterized in that, The lower end of the support shaft (17) is fixedly connected to a support block (21), which slides on the surface of the mounting base (2). The two ends of the second spring (13) are fixedly connected to the lower end of the inner clamping shaft (3) and the upper surface of the support block (21), respectively. The two ends of the first spring (12) are fixedly connected to the lower surface of the second connecting shaft (6) and the side of the support shaft (17), respectively. Both the first spring (12) and the second spring (13) are connected to circuits.

4. A tooling fixture for gear machining according to claim 1, characterized in that, Each of the outer clamping shafts (4) is provided with a locking part (15) at one end away from the second connecting shaft, and the upper end of the locking part (15) is inclined toward the air cavity (14).

5. A tooling fixture for gear machining according to claim 1, characterized in that, Each of the outer clamping shafts (4) has a protrusion (19) on its inner wall.

6. A tooling fixture for gear machining according to claim 1, characterized in that, The sleeve (9) is connected to the side of the air chamber (14). The upper surface of the air chamber (14) is fixedly connected to the base (1). The lower surface of the air chamber (14) is fixedly connected to the mounting base (2) through the ring. The center of the lower surface of the air chamber (14) is connected to the air pipe (5). The air pipe (5) is connected to an air pump.

7. A tooling fixture for gear machining according to claim 1, characterized in that, The upper end of the inner clamping shaft (3) is fixedly provided with a positioning part (18), which is used for limiting the position. A positioning groove (20) is provided on the first connecting shaft (10) at the position through which the inner clamping shaft (3) passes, which is used to accommodate the positioning part (18).

8. A tooling fixture for gear machining according to claim 1, characterized in that, The mounting base (2) has multiple holes.

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