Positioning device for gear machining

Abstract

The utility model discloses a gear machining positioning device which comprises a fixed base, a lead screw is rotationally arranged in the center of the upper end face of the fixed base, a driving block is arranged on the lead screw in a threaded connection mode, driving rods are hinged to the four side faces of the driving block, and four grooves are formed in the positions, corresponding to the four faces of the driving block, of the upper end face of the fixed base. The screw rod is provided with a plurality of grooves, a sliding block is arranged in each groove in a sliding mode, a pressing block used for fixing a gear is fixedly arranged at the upper end of each sliding block, and the lower end of the driving rod is arranged on the sliding blocks in a hinged mode. Driving rods are arranged on the four faces of the driving block to drive the pressing block to press and fix the inner wall of a gear center hole, in addition, an arc rubber block is designed, friction force is improved, the gear can be effectively fixed, displacement of the gear in the machining process is prevented, a groove, a guide rod and a sliding block are arranged, and under driving of a lead screw, the sliding block drives the pressing block to move along the groove, so that the gear center hole is machined. Therefore, gears with different sizes can be adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing devices, in particular to a gear processing positioning device. Background Art

[0002] In the field of mechanics, gears are a common transmission element used to transmit power and motion. Gears are usually made of metal materials and have precise tooth shapes to ensure efficient transmission and stable operation. The traditional gear processing process requires the use of fixtures to fix the gears on the processing equipment to ensure processing accuracy and safety.

[0003] Traditional gear processing fixtures usually adopt a clamping or clamping method to fix the gear in the processing position. These fixtures usually consist of a fixture base and a fixture clamp, which clamps the gear in the processing position through bolts or manual adjustment mechanisms. However, traditional fixtures have some defects that limit their effectiveness in practical applications.

[0004] First, the positioning and fixing effect of traditional gear processing fixtures may not be good. Due to the differences in gear size and shape, traditional fixtures may not provide sufficient positioning support, causing the gear to deviate or become unstable during processing, affecting the processing quality and accuracy.

[0005] Secondly, traditional gear processing fixtures are usually only suitable for gears of a certain size or type. Due to the design limitations of the fixture, the fixture cannot be flexibly adjusted to accommodate gears of different sizes or shapes, which limits the versatility and scope of application of the fixture.

[0006] Therefore, in view of the above-mentioned problems existing in the traditional gear processing fixture, a new type of gear processing positioning device is needed, which can provide a more stable positioning and fixing effect and has better adaptability and can be suitable for gears of different sizes and shapes. Utility Model Content

[0007] In order to solve the above-mentioned problems, the utility model provides a gear processing positioning device.

[0008] In order to solve the above technical problems, the technical solution of the utility model is: a gear processing positioning device, including a fixed base, a screw rod is rotatably provided at the center of the upper end surface of the fixed base, a driving block is threadedly connected to the screw rod, and a driving rod is hingedly provided on the four side surfaces of the driving block, and four grooves are provided on the upper end surface of the fixed base corresponding to the four surfaces of the driving block, a slider is slidably provided inside each groove, a clamping block for fixing the gear is fixed on the upper end of each slider, and the lower end of the driving rod is hinged on the slider.

[0009] Furthermore, a guide rod is fixedly provided inside the groove, and the sliding block is slidably sleeved on the guide rod.

[0010] Furthermore, a spline is provided at the upper end of the screw rod, a knob is movably inserted at the upper end of the screw rod, and a keyway is provided at the lower end of the knob to match and insert with the spline.

[0011] Furthermore, an arc-shaped rubber block is fixedly provided on one end of the pressing block that contacts the inner hole wall of the gear.

[0012] Furthermore, mounting holes are provided on both sides of the bottom of the fixed base.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model is provided with a screw rod, a driving block and a driving rod; the four surfaces of the driving block are provided with a driving rod to drive a clamping block to clamp and fix the inner wall of the central hole of the gear; an arc-shaped rubber block is designed to increase the friction force, which can effectively fix the gear and prevent it from being displaced during the processing; in addition, a groove, a guide rod and a slider are provided; under the drive of the screw rod, the slider drives the clamping block to move along the groove to adapt to gears of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structure diagram of a gear processing positioning device of the utility model. Figure 1 .

[0015] Figure 2 This is a three-dimensional structure diagram of a gear processing positioning device of the utility model. Figure 2 .

[0016] Figure 3 The utility model is a schematic diagram of the main structure of a gear processing positioning device.

[0017] Figure 4 The utility model is a left-side structural schematic diagram of a gear processing positioning device.

[0018] Figure 5 The utility model is a schematic diagram of a top view of a gear processing positioning device.

[0019] As shown in the figure: 1. Fixed base; 2. Screw rod; 3. Driving block; 4. Driving rod; 5. Groove; 6. Slider; 7. Clamping block; 8. Guide rod; 9. Spline; 10. Knob; 11. Keyway; 12. Arc rubber block; 13. Mounting hole. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Combined with Figure 1 To Attachment Figure 5 A gear processing positioning device comprises a fixed base 1, both sides of the bottom of the fixed base 1 are provided with mounting holes 13, a screw rod 2 is rotatably provided on the center of the upper end surface of the fixed base 1, a driving block 3 is threadedly connected on the screw rod 2, and a driving rod 4 is hinged on the four sides of the driving block 3, four grooves 5 are provided on the upper end surface of the fixed base 1 corresponding to the four surfaces of the driving block 3, a slider 6 is slidably provided inside each groove 5, a clamping block 7 for fixing the gear is fixed on the upper end of each slider 6, an arc-shaped rubber block 12 is fixed on the end of the clamping block 7 that contacts the inner hole wall of the gear, and the lower end of the driving rod 4 is hinged on the slider 6.

[0024] A guide rod 8 is fixedly disposed inside the groove 5 , and the slider 6 is slidably sleeved on the guide rod 8 .

[0025] The upper end of the screw rod 2 is provided with a spline 9, and the upper end of the screw rod 2 is movably plugged with a knob 10, and the lower end of the knob 10 is provided with a keyway 11 that matches and plugs with the spline 9.

[0026] Specific implementation mode of the utility model: Before use, the knob 10 is removed, the driving block 3 is located at the highest point of the screw rod 2, and the clamping block 7 is located at the innermost end close to the screw rod 2. When in use, the center hole of the gear to be processed is sleeved on the screw rod 2, the bottom of the gear is placed on the upper end surface of the fixed base 1, and the clamping block 7 is located on the inner side of the center hole of the gear. Then the knob 10 is inserted into the upper end of the screw rod 2, the keyway 11 is matched and plugged with the spline 9, the knob 10 is turned to drive the screw rod 2 to rotate, the driving block 3 moves downward, and the driving rod 4 is driven to push the slider 6 to the outside until the clamping block 7 and the arc-shaped rubber block 12 squeeze the inner wall of the gear hole to fix the gear.

[0027] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A gear processing positioning device, comprising a fixed base (1), characterized in that: A screw rod (2) is rotatably arranged at the center of the upper end surface of the fixed base (1), a driving block (3) is threadedly connected to the screw rod (2), and driving rods (4) are hingedly arranged on four sides of the driving block (3). Four grooves (5) are arranged on the upper end surface of the fixed base (1) corresponding to the four sides of the driving block (3), and a slider (6) is slidably arranged inside each groove (5), and a clamping block (7) for fixing a gear is fixedly arranged at the upper end of each slider (6), and the lower end of the driving rod (4) is hingedly arranged on the slider (6).

2. A gear processing positioning device according to claim 1, characterized in that: A guide rod (8) is fixedly arranged inside the groove (5), and the slider (6) is slidably sleeved on the guide rod (8).

3. A gear processing positioning device according to claim 1, characterized in that: The upper end of the screw rod (2) is provided with a spline (9), the upper end of the screw rod (2) is movably plugged with a knob (10), and the lower end of the knob (10) is provided with a keyway (11) that matches and plugs with the spline (9).

4. A gear processing positioning device according to claim 1, characterized in that: An arc-shaped rubber block (12) is fixedly disposed on the end of the pressing block (7) that contacts the inner hole wall of the gear.

5. The gear processing positioning device according to claim 1, characterized in that: Both sides of the bottom of the fixed base (1) are provided with mounting holes (13).

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