Damping device for automobile engine gear machining

Abstract

The utility model discloses a damping device for automobile engine gear processing, which comprises a base and a gear placing table, first damping mechanisms are connected between four corners of the upper end surface of the base and the gear placing table, and second damping mechanisms distributed in a cross shape are connected between the base and the bottom surface of the gear placing table in a matched manner. A clamping assembly used for clamping and fixing a gear is fixedly arranged in the center of the upper end face of the gear containing table. The first damping mechanism and the second damping mechanism distributed in the cross shape are arranged between the base and the gear containing table, huge impact force and vibration generated in the cutting process can be effectively absorbed and reduced, machining errors caused by vibration are reduced, the clamping assembly is sleeved with an inner ring of a gear, and the machining precision of the gear is improved. Through the design of a bidirectional lead screw and a sliding block in the clamping assembly, a fastening block can evenly clamp and fix the gear outwards from the inner ring of the gear, and the problem that the gear eccentrically moves due to the fact that a nut is used for pressing from top to bottom traditionally is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing devices, and specifically refers to a damping device for processing gears of an automobile engine. Background Art

[0002] As one of the key components of an automobile engine, the quality and precision of an automobile engine gear play a crucial role in the performance and stability of the engine. During the processing of an automobile engine gear, process operations such as cutting are usually required. However, due to the huge cutting force, strong impacts and vibrations will be generated on the gear.

[0003] In gear processing, in order to reduce the influence of vibration on processing precision and quality, it is usually necessary to clamp and fix the gear and take shock absorption measures. However, most traditional clamping and fixing methods are rigid clamping, and this method is prone to cause large vibrations of the gear during the cutting process.

[0004] Traditional damping devices have many defects. On the one hand, their damping effect is often insufficient and they cannot effectively absorb and reduce the huge impact force generated during the cutting process, thus affecting the processing precision and the quality of the gear. On the other hand, when clamping the gear, generally the center of the gear is sleeved on a fixed shaft, and then the gear is pressed tightly from top to bottom by a nut. This method is prone to cause eccentric movement of the gear, thereby increasing the processing error and affecting the processing precision and service life of the gear. Content of the Utility Model

[0005] (I) Technical Problem

[0006] The utility model provides a damping device for processing gears of an automobile engine, aiming to solve the problems of insufficient damping capacity of traditional damping devices and easy deviation of the clamping method.

[0007] (II) Technical Content

[0008] To solve the above technical problem, the technical solution of the utility model is: a damping device for processing gears of an automobile engine, including a base and a gear placement table located above the base. First damping mechanisms are connected and provided between the four corners of the upper end surface of the base and the gear placement table. A second damping mechanism distributed in a cross shape is connected and matched between the base and the bottom surface of the gear placement table. A waste chip collection groove is provided on the upper end surface of the gear placement table, and a clamping assembly for clamping and fixing the gear is fixedly provided at the center of the upper end surface of the gear placement table;

[0009] The clamping assembly includes a U-shaped frame fixedly arranged at the center of the upper end surface of the gear placement table. A bidirectional lead screw is rotatably arranged inside the U-shaped frame. Symmetrically threaded connections are provided on both sides of the center of the bidirectional lead screw with sliders. Between the left sides and the right sides of the two sliders, fastening blocks are hinged through connecting rods. A knob is fixedly arranged at the upper end of the bidirectional lead screw.

[0010] Further, the first shock absorption mechanism includes a damper fixedly arranged on the upper end surface of the base, and a shock absorption spring is sleeved outside the damper.

[0011] Further, the second shock absorption mechanism includes four grooves arranged in a cross shape on the upper end surface of the base. A guide rod is fixedly arranged inside each groove. A second slider is slidably arranged on the guide rod. Springs are sleeved on the guide rod on both sides of the second slider. The upper end of the second slider is hinged with a second connecting rod, and the upper end of the second connecting rod is hinged on the bottom surface of the gear placement table.

[0012] Further, a chute is arranged on the inner wall of the U-shaped frame, and a third slider is fixedly arranged on the side surface of the slider corresponding to the chute.

[0013] Further, the outer side surface of the fastening block is arc-shaped.

[0014] (III) Technical effects

[0015] The advantages of the present utility model compared with the prior art are as follows:

[0016] 1. By arranging the first shock absorption mechanism and the second shock absorption mechanism distributed in a cross shape between the base and the gear placement table, the huge impact force and vibration generated during the cutting process can be effectively absorbed and reduced, significantly improving the precision and quality of gear processing and reducing the processing errors caused by vibration.

[0017] 2. The inner ring of the gear is sleeved outside the clamping assembly. The design of the bidirectional lead screw and the slider in the clamping assembly enables the fastening block to clamp and fix the gear evenly from the inner ring of the gear outward, avoiding the problem of eccentric movement of the gear caused by the traditional method of pressing from top to bottom by a nut, ensuring the position stability of the gear during the processing process, and further improving the processing precision. Description of the drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of a vibration damping device for machining automotive engine gears according to the present utility model.

[0019] Figure 2 is a front view structural schematic diagram of a vibration damping device for machining automotive engine gears according to the present utility model.

[0020] Figure 3 is a left view structural schematic diagram of a vibration damping device for machining automotive engine gears according to the present utility model.

[0021] Figure 4 This is a schematic cross-sectional structure of a vibration damping device for machining automotive engine gears in the present utility model. Figure 1 .

[0022] Figure 5 This is a schematic cross-sectional structure of a vibration damping device for machining automotive engine gears in the present utility model. Figure 2 .

[0023] Figure 6 This is a schematic structural diagram of area A of a vibration damping device for machining automotive engine gears in the present utility model.

[0024] As shown in the figure: 1. Base; 2. Gear placement table; 3. Scrap collection groove; 4. U-shaped frame; 5. Bi-directional lead screw; 6. Slide block; 7. Fastening block; 8. Knob; 9. Damper; 10. Shock-absorbing spring; 11. Groove; 12. Guide rod; 13. Second slide block; 14. Second slide block; 15. Second connecting rod; 16. Connecting rod; 17. Chute; 18. Third slide block. Specific implementation mode

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "provided with", "installed", "connected", "connected to", etc. 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 or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The following further elaborates on the present utility model with reference to the drawings.

[0028] Combined with the attached Figure 1 to the attached Figure 6, a vibration damping device for machining automotive engine gears, comprising a base 1 and a gear placement table 2 located above the base 1. First damping mechanisms are connected and provided between the four corners of the upper end surface of the base 1 and the gear placement table 2. A second damping mechanism distributed in a cross shape is matched and connected between the base 1 and the bottom surface of the gear placement table 2. A waste chip collection groove 3 is provided on the upper end surface of the gear placement table 2, and a clamping assembly for clamping and fixing the gear is fixedly provided at the center of the upper end surface of the gear placement table 2.

[0029] Reference appendix Figure 6 , the clamping assembly includes a U-shaped frame 4 fixedly provided at the center of the upper end surface of the gear placement table 2. A bidirectional lead screw 5 is rotatably provided inside the U-shaped frame 4. Symmetrically threaded connection blocks 6 are provided on both sides of the center of the bidirectional lead screw 5. Between the left sides and the right sides of the two blocks 6, fastening blocks 7 are hinged through connecting rods 16. The outer side surface of the fastening block 7 is arc-shaped. A knob 8 is fixedly provided at the upper end of the bidirectional lead screw 5. A chute 17 is provided on the inner wall of the U-shaped frame 4, and a third block 18 corresponding to the chute 17 is fixedly provided on the side surface of the block 6.

[0030] Reference appendix Figure 2 , the first damping mechanism includes a damper 9 fixedly provided on the upper end surface of the base 1, and a damping spring 10 is sleeved outside the damper 9.

[0031] Reference appendix Figure 4 , the second damping mechanism includes four grooves 11 distributed in a cross shape on the upper end surface of the base 1. A guide rod 12 is fixedly provided inside each groove 11. A second block 13 slides on the guide rod 12. Springs 14 are sleeved on both sides of the second block 13 on the guide rod 12. The upper end of the second block 13 is hinged with a second connecting rod 15, and the upper end of the second connecting rod 15 is hinged on the bottom surface of the gear placement table 2.

[0032] The working principle of the present utility model: This vibration damping device for machining automotive engine gears realizes effective vibration damping and stable clamping during the gear machining process through the coordinated action of various damping mechanisms and a unique clamping assembly. During cutting machining, the damper 9 and the damping spring 10 in the first damping mechanism can slow down the impact force and vibration from the vertical direction. When the gear placement table 2 is subjected to a downward pressure, the damper 9 consumes energy through the internal damping effect, and the damping spring 10 buffers the vibration through compression and extension. In the second damping mechanism distributed in a cross shape, when the gear placement table 2 is subjected to a force in the vertical direction, the second block 13 in the groove 11 will slide along the guide rod 12, and the spring 14 on the guide rod 12 is compressed, thereby absorbing the vibration energy. The clamping assembly drives the block 6 to move by rotating the bidirectional lead screw 5, and further enables the fastening block 7 to uniformly clamp the gear from the inner circle of the gear. This clamping method can ensure that the gear does not undergo eccentric movement during machining, ensuring the machining accuracy.

[0033] The operation process steps of the present utility model are as follows:

[0034] 1. Preparation work: Place the automotive engine gear to be processed at the center position of the gear placement table 2.

[0035] 2. Clamping and fixing: Rotate the knob 8 to make the bidirectional lead screw 5 rotate. The rotation of the bidirectional lead screw 5 drives the sliders 6 on both sides to move towards each other. Through the action of the connecting rod 16, the fastening block 7 moves from the inner circle of the gear from the inside to the outside until the fastening block 7 closely fits the inner side of the gear inner circle, realizing the clamping and fixing of the gear.

[0036] 3. Start processing: Start the processing equipment to perform machining operations such as cutting on the gear.

[0037] 4. Vibration damping function: During the processing, when the cutting force generates vertical vibration, the first vibration damping mechanism at the four corners of the upper end face of the base plays a role, and the damper 9 and the shock absorption spring 10 jointly buffer the vibration. At the same time, the slider two 13 in the second vibration damping mechanism distributed in a cross shape between the base 1 and the bottom surface of the gear placement table 2 slides in the groove 11, and the spring 14 on the guide rod 12 absorbs the vibration energy.

[0038] 5. Collect waste chips: The waste chips generated during the processing fall into the waste chip collection groove 3 on the upper end face of the gear placement table 2.

[0039] 6. Processing completion: Stop the processing equipment, rotate the knob 8 in the reverse direction, loosen the clamping assembly, and take out the processed gear.

[0040] 7. Cleaning and maintenance: Clean the waste chips in the waste chip collection groove, and inspect and maintain the entire vibration damping device to prepare for the next processing.

[0041] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the creative purpose of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A vibration reduction device for machining automobile engine gears, comprising a base (1) and a gear placement platform (2) located above the base (1), wherein a first vibration reduction mechanism is connected between the four corners of the upper end surface of the base (1) and the gear placement platform (2), and a second vibration reduction mechanism is matched and connected between the base (1) and the bottom surface of the gear placement platform (2) and is distributed in a cross shape, wherein: The upper end surface of the gear placement platform (2) is provided with a waste chip collection groove (3), and the center of the upper end surface of the gear placement platform (2) is fixedly provided with a clamping assembly for clamping and fixing the gear; The clamping assembly comprises a U-shaped frame (4) fixedly arranged at the center of the upper end surface of the gear placement platform (2), a bidirectional screw rod (5) rotatably arranged inside the U-shaped frame (4), sliders (6) symmetrically threadedly connected to both sides of the center of the bidirectional screw rod (5), a fastening block (7) hingedly arranged between the left and right sides of the two sliders (6) via a connecting rod (16), and a knob (8) fixedly arranged at the upper end of the bidirectional screw rod (5).

2. A vibration reduction device for automobile engine gear processing according to claim 1, characterized in that: The first shock absorbing mechanism comprises a damper (9) fixedly arranged on the upper end surface of the base (1), and a shock absorbing spring (10) is sleeved on the outside of the damper (9).

3. A vibration reduction device for automobile engine gear processing according to claim 1, characterized in that: The second shock absorbing mechanism comprises four grooves (11) arranged in a cross shape on the upper end surface of the base (1), a guide rod (12) is fixedly arranged inside each groove (11), a second slider (13) is slidably arranged on the guide rod (12), springs (14) are sleeved on the guide rod (12) and on both sides of the second slider (13), a second connecting rod (15) is hingedly arranged on the upper end of the second slider (13), and the upper end of the second connecting rod (15) is hingedly arranged on the bottom surface of the gear placement platform (2).

4. A vibration reduction device for automobile engine gear processing according to claim 1, characterized in that: The inner wall of the U-shaped frame (4) is provided with a slide groove (17), and a slide block three (18) is fixedly provided on the side of the slide block (6) corresponding to the slide groove (17).

5. The vibration reduction device for automobile engine gear processing according to claim 1, characterized in that: The outer side surface of the fastening block (7) is in an arc shape.

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