A crankshaft gear drilling fixture

Abstract

This utility model discloses a crankshaft gear drilling fixture, belonging to the technical field of gear drilling fixtures. It includes an adjusting base plate, with fixed suction cups fixedly installed at the four corners of the bottom of the adjusting base plate. Symmetrical moving grooves are provided on both sides of the top of the adjusting base plate. A rectangular hole is provided inside the adjusting base plate between the two sets of moving grooves, and a moving screw is rotatably installed inside the moving groove. This crankshaft gear drilling fixture, by setting up an adjusting base plate, moving screws, moving blocks, a first bevel gear, a power motor, and a second bevel gear, allows the power motor to drive the second bevel gear to rotate, thereby controlling the two sets of first bevel gears to rotate synchronously in opposite directions. This causes the two sets of moving blocks to move in opposite directions on the surfaces of the two sets of moving screws, driving the clamping plate to move. This achieves electrically controlled clamping of the gear body, increasing the speed of installation, fixing, or disassembly when drilling multiple sets of gear bodies.

Description

Technical Field

[0001] This utility model belongs to the field of gear drilling fixture technology, specifically a crankshaft gear drilling fixture. Background Technology

[0002] A crankshaft gear is a gear or key gear mounted at the front end of the crankshaft, typically used to drive camshaft gears, chains, or toothed belts. During crankshaft gear manufacturing, multiple weight-reducing holes are drilled on the end face of the gear to ensure proper operation without misalignment, while also reducing its weight for easier handling and use. When drilling, the crankshaft gear must be clamped within a corresponding fixture to prevent misalignment during drilling.

[0003] The existing crankshaft gear drilling jig requires the operator to manually adjust the distance between the jigs to hold and fix the gear body. The adjustment process takes a long time, which affects the speed of changing the gear body when drilling. At the same time, manual adjustment cannot ensure that the jig can clamp the gear body tightly and will not loosen during drilling. Therefore, it needs to be improved. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a crankshaft gear drilling fixture, which solves the problem that the adjustment process of the existing crankshaft gear drilling fixture takes a long time when manually controlling the fixture to hold the gear body, which affects the speed of changing when drilling multiple sets of gear bodies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crankshaft gear drilling fixture, comprising an adjusting base plate, wherein fixed suction cups are fixedly installed at the four corners of the bottom of the adjusting base plate, and symmetrical moving grooves are provided on both sides of the top of the adjusting base plate. A rectangular hole is provided inside the adjusting base plate between the two sets of moving grooves. A moving screw is rotatably installed inside the moving groove, and a first bevel gear is fixedly installed inside the rectangular hole at one end of the moving screw near the rectangular hole. A limit sliding rod is fixedly installed inside the moving groove at the top of the moving screw.

[0006] The moving screw and the limiting slide rod are slidably mounted with a moving block. A fixing plate is fixedly mounted on one side of the top of the moving block. A clamping plate is provided on one side of the fixing plate at the top of the moving block. A gear body is provided between the two sets of clamping plates. A power motor is embedded in the center of the top side of the adjusting base plate. The output end of the power motor extends into the rectangular hole and is fixedly mounted with a second bevel gear. The second bevel gear meshes with the two sets of first bevel gears.

[0007] As a further embodiment of this utility model: two ends of one side of the clamping plate are fixedly installed with fixing rods, and a fixing screw is fixedly installed on one side of the clamping plate between the two sets of fixing rods. An end plate is fixedly installed on one end of the fixing screw and one end of the two sets of fixing rods.

[0008] As a further embodiment of this utility model: a movable clamping plate is slidably mounted on the surface of the fixing screw and the two sets of fixing rods; a fixing screw sleeve is provided on the surface of the fixing screw located between the end plate and the movable clamping plate; and a fixing spring is provided on the surface of the fixing rod located between the end plate and the movable clamping plate.

[0009] As a further embodiment of this utility model: the top of the fixing plate is provided with three sets of slots at equal intervals, and the slots correspond to the fixing rod and the fixing screw.

[0010] As a further embodiment of this utility model: a fixing groove is provided on one side of the slot at the bottom of the slot, and the fixing groove corresponds to the movable card plate.

[0011] As a further embodiment of this utility model: a tooth is provided at the center of one side of the clamping plate, and the tooth meshes with the surface of the gear body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This crankshaft gear drilling fixture is equipped with an adjusting base plate, a moving screw, a moving block, a first bevel gear, a power motor, and a second bevel gear. When the power motor is started, it drives the second bevel gear to rotate, thereby controlling the two sets of first bevel gears to rotate synchronously in opposite directions. This causes the two sets of moving blocks to move in opposite directions on the surfaces of the two sets of moving screws, which in turn moves the clamping plate. This allows for the electric control of the clamping plate to grip or release the gear body, improving the speed of installation, fixing, or disassembly when drilling multiple sets of gear bodies.

[0014] 2. This crankshaft gear drilling fixture consists of a fixed plate, slot, fixed groove, clamping plate, movable clamping plate, fixed screw, and fixed screw sleeve. The clamping plate is selected according to the specifications of the gear body to match the teeth. Pulling the movable clamping plate inserts the fixed rod and fixed screw on one side of the clamping plate into the corresponding slot of the fixed plate, causing the fixed plate to be clamped between the clamping plate and the movable clamping plate. Releasing the movable clamping plate allows it to be inserted into the fixed groove under the return action of the fixed spring. Tightening the fixed screw sleeve presses the movable clamping plate firmly into the fixed groove, facilitating the installation, fixing, or removal of the clamping plate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the adjustable base plate of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the clamping plate of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the fixing plate of this utility model;

[0019] In the diagram: 1. Adjusting base plate; 101. Moving slot; 102. Moving screw; 103. Limiting slide bar; 104. Moving block; 105. First bevel gear; 106. Power motor; 107. Second bevel gear; 108. Rectangular hole; 2. Fixed suction cup; 3. Fixed plate; 301. Slot; 302. Fixed slot; 4. Clamping plate; 401. Fixed rod; 402. Fixed screw; 403. End plate; 404. Moving clamping plate; 405. Fixed screw sleeve; 406. Fixed spring; 5. Gear body; 6. Gear teeth. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] like Figure 1-4 As shown, this utility model provides a technical solution: a crankshaft gear drilling fixture, including an adjusting base plate 1, a fixed suction cup 2 fixedly installed at the four corners of the bottom of the adjusting base plate 1, symmetrical moving grooves 101 on both sides of the top of the adjusting base plate 1, a rectangular hole 108 in the middle of the two sets of moving grooves 101 in the adjusting base plate 1, a moving screw 102 rotatably installed in the moving groove 101, and a first bevel gear 105 fixedly installed in the rectangular hole 108 at one end of the moving screw 102 near the rectangular hole 108, and a limiting slide rod 103 fixedly installed in the moving groove 101 at the top of the moving screw 102. By providing the limiting slide rod 103, it is ensured that the moving block 104 will not rotate synchronously with the moving screw 102 when it moves on the surface of the moving screw 102.

[0022] Moving blocks 104 are slidably mounted on the surfaces of the moving screw 102 and the limiting slide bar 103. A power motor 106 is embedded in the center of the top side of the adjusting base plate 1, and the output end of the power motor 106 extends into the rectangular hole 108 where a second bevel gear 107 is fixedly installed. The second bevel gear 107 meshes with two sets of first bevel gears 105. By providing the power motor 106, the second bevel gear 107 is controlled to rotate, providing power for the two sets of moving screws 102 to rotate in opposite directions at the same time, which facilitates the control of the distance between the two sets of moving blocks 104.

[0023] A clamping plate 4 is provided on one side of the fixed plate 3 at the top of the movable block 104. Fixing rods 401 are fixedly installed at both ends of one side of the clamping plate 4. A fixing screw 402 is fixedly installed on one side of the clamping plate 4 between the two sets of fixing rods 401. An end plate 403 is fixedly installed at one end of the fixing screw 402 and the two sets of fixing rods 401. By providing the end plate 403, the movement range of the movable clamping plate 404, the fixing screw sleeve 405 and the fixing spring 406 is limited, so as to prevent the movable clamping plate 404, the fixing screw sleeve 405 and the fixing spring 406 from disengaging from the fixing rods 401 or the fixing screws 402.

[0024] A movable clamping plate 404 is slidably mounted on the surface of the fixed screw 402 and the two sets of fixed rods 401. A fixed screw sleeve 405 is provided on the surface of the fixed screw 402 located between the end plate 403 and the movable clamping plate 404. By providing the fixed screw sleeve 405, the movable clamping plate 404 is disengaged from the fixed groove 302 by turning the fixed screw sleeve 405, so that the clamping plate 4 can be easily removed from one side of the fixed plate 3.

[0025] A fixing spring 406 is provided on the surface of the fixing rod 401 located between the end plate 403 and the movable plate 404. Because of the fixing spring 406, the movable plate 404 can be placed inside the fixing groove 302 after the movable plate 404 is released.

[0026] A fixing plate 3 is fixedly installed on one side of the top of the movable block 104. Three sets of slots 301 are equidistantly provided on the top of the fixing plate 3, and the slots 301 correspond to the fixing rod 401 and the fixing screw 402. Because there are three sets of slots 301, the stability of the clamping plate 4 when it is fixed on one side of the fixing plate 3 is improved after the fixing rod 401 and the fixing screw 402 are inserted into the corresponding slots 301.

[0027] A fixing groove 302 is provided on one side of the slot 301 at the bottom of the slot 301, and the fixing groove 302 corresponds to the movable card plate 404. Because of the fixing groove 302, after the movable card plate 404 is pressed and fixed inside the fixing groove 302, it is ensured that the clamping plate 4 will not easily come off the side of the fixing plate 3.

[0028] Two sets of clamping plates 4 are located between the teeth 6 and a gear body 5 is provided. The teeth 6 are provided at the center of one side of the clamping plate 4 and mesh with the surface of the gear body 5. Because of the teeth 6, when the gear body 5 is clamped between the two sets of teeth 6, it is ensured that the gear body 5 will not rotate between the two sets of clamping plates 4 when drilling.

[0029] The working principle of this utility model is as follows:

[0030] Select the appropriate clamping plate 4 with the appropriate teeth 6 according to the different outer ring of the gear body 5. Pull the movable clamping plate 404 to compress the fixing spring 406 and deform it, so that the distance between the movable clamping plate 404 and the clamping plate 4 is increased. The fixing plate 3 is clamped between the movable clamping plate 404 and the clamping plate 4, so that the fixing rod 401 and the fixing screw 402 are inserted into the corresponding slot 301. Release the movable clamping plate 404. Under the rebound action of the fixing spring 406, the movable clamping plate 404 is pressed into the fixing groove 302. Tighten the fixing screw sleeve 405 so that the fixing screw sleeve 405 is pressed into one side of the movable clamping plate 404. Move the movable clamping plate 404... The gear body 5 is fixed inside the fixing groove 302. The steps are repeated to fix the two sets of clamping plates 4 on the top of the corresponding fixing plate 3. The power motor 106 is started according to the size of the gear body 5 to drive the second bevel gear 107 to rotate, thereby controlling the two sets of moving screws 102 to rotate synchronously in opposite directions, so that the two sets of moving blocks 104 move on the surface of the corresponding moving screws 102 until the gear body 5 can be inserted between the two sets of clamping plates 4. The gear body 5 is then adjusted so that the outer ring of the gear body 5 is inserted between the two sets of teeth 6. The power motor 106 is controlled to reverse, so that the moving blocks 104 drive the clamping plates 4 to clamp on the surface of the gear body 5.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A crank gear drilling jig comprising an adjusting base plate (1), characterized in that: Fixed suction cups (2) are fixedly installed at the four corners of the bottom of the adjustment base plate (1). The two sides of the top of the adjustment base plate (1) are symmetrically provided with moving grooves (101). The interior of the adjustment base plate (1) between the two sets of moving grooves (101) is provided with a rectangular hole (108). A moving screw (102) is rotatably installed inside the moving groove (101). The end of the moving screw (102) near the rectangular hole (108) extends into the rectangular hole (108) and is fixedly installed with a first bevel gear (105). A limit slide rod (103) is fixedly installed at the top of the moving screw (102) inside the moving groove (101). The moving screw (102) and the limiting slide bar (103) are slidably mounted with a moving block (104). A fixing plate (3) is fixedly mounted on one side of the top of the moving block (104). A clamping plate (4) is provided on one side of the fixing plate (3) at the top of the moving block (104). A gear body (5) is provided between the two sets of clamping plates (4). A power motor (106) is embedded in the center of the top side of the adjusting base plate (1). The output end of the power motor (106) extends to the rectangular hole (108) and a second bevel gear (107) is fixedly mounted inside. The second bevel gear (107) meshes with the two sets of first bevel gears (105).

2. A crankshaft gear drilling jig according to claim 1, wherein: Fixing rods (401) are fixedly installed at both ends on one side of the clamping plate (4), and fixing screws (402) are fixedly installed between the two sets of fixing rods (401) on one side of the clamping plate (4). End plates (403) are fixedly installed at one end of the fixing screws (402) and the two sets of fixing rods (401).

3. A crankshaft gear drilling jig according to claim 2, wherein: The fixed screw (402) and the two sets of fixed rods (401) are slidably mounted with movable clamping plates (404). The fixed screw (402) is provided with a fixed screw sleeve (405) on the surface between the end plate (403) and the movable clamping plate (404). The fixed rod (401) is provided with a fixed spring (406) on the surface between the end plate (403) and the movable clamping plate (404).

4. A crankshaft gear drilling jig according to claim 3, wherein: The top of the fixing plate (3) is provided with three sets of slots (301) at equal intervals, and the slots (301) correspond to the fixing rod (401) and the fixing screw (402).

5. A crankshaft gear drilling jig according to claim 4, wherein: A fixing groove (302) is provided on one side of the slot (301) at the bottom of the slot (301), and the fixing groove (302) corresponds to the movable card plate (404).

6. A crankshaft gear drilling jig according to claim 1, wherein: The clamp (4) has teeth (6) at the center of one side, and the teeth (6) mesh with the surface of the gear body (5).

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