Machining device for precision gear

Abstract

The invention relates to the technical field of gear machining equipment, in particular to a precision gear machining device which comprises a machine body, two protective doors are arranged on the machine body in a sliding fit mode, a fixing seat is fixedly connected to the interior of the machine body, a swing frame is rotatably connected to the fixing seat, and a gear processing seat is fixedly connected to the swing frame. A cover plate is arranged above the gear processing seat, a gear blow-drying mechanism is rotatably connected to the interior of the cover plate, and a transmission mechanism is fixedly connected to the outer wall of the cover plate. Through the arrangement of the gear blow-drying mechanism, after a gear is machined and placed in the gear processing seat, a self-rotating air spraying pipe can spray and blow the surface of the gear in all directions; by means of the gear cleaning device, it is guaranteed that residual cutting fluid on the surface can be efficiently removed, manual cleaning time and labor cost are reduced, cleaning efficiency is improved, production time is shortened, and the size and quality of a machined gear are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of gear processing equipment technology, and more particularly to a precision gear processing apparatus. Background Technology

[0002] Precision gears are indispensable components in mechanical transmissions, widely used in automobiles, aerospace, robotics, industrial equipment, and various mechanical transmission devices. Due to their requirements for accurate meshing, low noise, wear resistance, and high strength, the design and machining of precision gears require special attention. Machining precision gears is a complex and meticulous process involving multiple stages and technologies to ensure that the gears meet high requirements in terms of dimensions, tolerances, strength, and surface quality.

[0003] After the gear is machined and removed from the machining equipment, a layer of cutting fluid inevitably adheres to its surface. This cutting fluid not only contains coolant but also a mixture of metal chips, abrasive shavings, and various chemical additives generated during the cutting process.

[0004] Most factories still rely on manual wiping and blowing of removed gears using cloths or compressed air. For mass production, manual wiping is time-consuming and labor-intensive, which seriously affects the overall efficiency of the production line. At the same time, it is difficult to completely remove cutting fluid and stubborn debris adhering to complex structures such as gear tooth surfaces, tooth roots, and chamfers, and residue problems are common.

[0005] In summary, the existing technology lacks a technique for automatically treating surface deposits on gears after machining. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by providing a precision gear processing device.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a precision gear processing device, comprising a machine body, two protective doors slidably fitted on the machine body, a fixed seat fixedly connected inside the machine body, a swing frame rotatably connected on the fixed seat, a gear processing seat fixedly connected on the swing frame, a cover plate above the gear processing seat, a gear drying mechanism rotatably connected inside the cover plate, and a transmission mechanism fixedly connected to the outer wall of the cover plate.

[0008] Preferably, a drive shaft is fixedly connected to the upper part of one end of the swing frame, and a drive groove is formed on the outer wall of the drive shaft. The drive groove is composed of two parts: a straight line and a spiral structure. A support wheel is rotatably connected to the bottom of the swing frame, and the support wheel is slidably in contact with the fixed seat.

[0009] Preferably, a placement frame is slidably fitted through the inner wall of the bottom end of the gear processing seat. Multiple gear push rods are fixedly connected to the placement frame. Multiple electric push rods are fixedly connected to the placement frame in a ring structure. A gear clamping rod is fixedly connected to the output end of the electric push rod. The top end of the gear clamping rod is tapered. A tapered surface is formed on the inner wall of the gear processing seat.

[0010] Preferably, a support rod assembly is rotatably connected to one side of the placement frame, the bottom end of the support rod assembly is rotatably connected to the inner wall of the bottom end of the gear processing seat, a connecting rod is rotatably connected to one side of the bottom end of the support rod assembly, and a sliding rod is rotatably connected to the other end of the connecting rod, the sliding rod being slidably engaged with the inner wall of the bottom end of the gear processing seat.

[0011] Preferably, the fixed base is provided with an arc-shaped guide groove, and the outer end of the sliding rod is rotatably connected to a guide wheel, and the inner wall of the arc-shaped guide groove is slidably fitted with the outer wall of the guide wheel.

[0012] Preferably, the top of the cover plate has an inclined structure with multiple air inlets.

[0013] Preferably, the gear drying mechanism includes a motor, which is fixedly connected to the inner wall of the top of the cover plate. An air jet pipe is fixedly connected to the output end of the motor. Multiple nozzles are fixedly connected to the air jet pipe. The air jet pipe is rotatably connected through the inner wall of the cover plate. A turntable is fixedly connected to the outer wall of the air jet pipe inside the cover plate. Multiple balls are embedded at the bottom of the turntable and slide in contact with the inner wall of the cover plate. An air pump is fixedly mounted on the turntable. The output end of the air pump communicates with the inner wall of the air jet pipe, and a conical filter sleeve is threadedly connected to the input end of the air pump.

[0014] Preferably, the transmission mechanism includes a threaded rod, both ends of which are rotatably connected to the inner wall of the machine body. A transmission wheel is fixedly connected to the top end of the threaded rod. A transmission rack is fixedly connected to one of the protective doors, and the transmission rack meshes with the transmission wheel for transmission. A hydraulic rod is fixedly connected to the bottom end of the protective door, and the other end of the hydraulic rod is fixedly connected to the inner wall of the machine body.

[0015] Preferably, a movable frame is threadedly connected to the outer wall of the threaded rod. One end of the movable frame is fixedly connected to the cover plate, and the inner wall of the other end of the movable frame is slidably engaged with the outer wall of the transmission shaft. A guide head is fixedly connected to the inner wall of the sliding engagement point between the movable frame and the transmission shaft, and the outer wall of the guide head is slidably engaged with the inner wall of the transmission groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a gear drying mechanism, after the gear is processed, it is placed in the gear processing seat, and the rotating jet pipe can spray the gear surface from all directions to ensure that the residual cutting fluid on the surface can be efficiently removed, reducing the time and labor cost of manual cleaning. This not only improves cleaning efficiency and reduces production time, but also ensures the size and quality of the gear after processing. At the same time, setting the gear drying structure inside the machine body can effectively avoid occupying external space, and can also allow the cutting fluid and impurities generated during drying to fall into the machine body, without polluting the external environment and ensuring a clean working environment. 2. By setting a gear push rod inside the gear processing seat, gears can be placed. At the same time, the adjustable gear clamp can position gears of different sizes, improving the flexibility of processing. In addition, by opening an arc-shaped guide groove on the fixed seat, when the gear processing seat rotates to the protective door, the support rod group can drive the placement frame inside the gear processing seat to automatically push out. This not only facilitates the placement and removal of gears, but also further improves processing accuracy and efficiency. 3. By setting up a transmission mechanism, the cover plate can be automatically moved up and down while the protective door is opening and closing. At the same time, the transmission mechanism can drive the swing frame to swing automatically while moving the cover plate, and drive the gear processing seat to rotate to the protective door, which facilitates the placement and removal of gears, reduces operation steps and time, and improves processing efficiency. Especially in mass production, it can significantly shorten the equipment preparation time, and the precision gear processing device has been significantly improved in terms of ease of operation, safety, efficiency and processing quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a precision gear processing device according to the present invention; Figure 2 This is a partial cross-sectional schematic diagram of a precision gear processing device according to the present invention. Figure 3 This is a schematic diagram of the structure of the precision gear processing device of the present invention, including the mounting base; Figure 4 This is a schematic diagram of the swing frame structure of a precision gear processing device according to the present invention; Figure 5 This is a partial sectional view of the gear processing seat structure of a precision gear processing device according to the present invention; Figure 6 This is a partial cross-sectional schematic diagram of the cover plate and gear drying mechanism of a precision gear processing device according to the present invention. Figure 7 This is a schematic diagram of the transmission mechanism structure of a precision gear processing device according to the present invention; Figure 8This is a schematic diagram of the protective door structure of a precision gear processing device according to the present invention.

[0018] The diagram shows: 1. Machine body; 2. Protective door; 3. Fixed base; 4. Swing frame; 5. Gear processing seat; 6. Cover plate; 7. Gear drying mechanism; 8. Transmission mechanism; 401. Drive shaft; 402. Transmission groove; 403. Support wheel; 501. Placement rack; 502. Gear push rod; 503. Electric push rod; 504. Gear clamp rod; 505. Support rod assembly; 506. Connecting rod; 507. Sliding rod. Rod; 508, guide wheel; 509, conical surface; 301, arc-shaped guide groove; 601, air inlet; 701, motor; 702, jet pipe; 703, turntable; 704, ball bearing; 705, air pump; 706, nozzle; 707, conical filter sleeve; 801, threaded rod; 802, transmission wheel; 803, moving frame; 804, guide head; 201, transmission rack; 202, hydraulic rod. Detailed Implementation

[0019] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will occur to those skilled in the art.

[0020] like Figures 1-8 The precision gear processing device shown includes a body 1, two protective doors 2 that are slidably fitted on the body 1, a fixed seat 3 that is fixedly connected inside the body 1, a swing frame 4 that is rotatably connected to the fixed seat 3, a gear processing seat 5 that is fixedly connected to the swing frame 4, a cover plate 6 that is provided above the gear processing seat 5, a gear drying mechanism 7 that is rotatably connected inside the cover plate 6, and a transmission mechanism 8 that is fixedly connected to the outer wall of the cover plate 6.

[0021] The protective door 2 is made of tempered glass, which combines protection and visibility, making it easy for operators to observe the internal working status. At the same time, a sealing strip is installed at the sliding contact with the machine body 1 to prevent the splashing of processing fluid and the leakage of dust.

[0022] like Figure 3 As shown, a drive shaft 401 is fixedly connected to the upper part of one end of the swing frame 4. A drive groove 402 is opened on the outer wall of the drive shaft 401. The drive groove 402 is composed of two parts: a straight line and a spiral structure. A support wheel 403 is rotatably connected to the bottom of the swing frame 4. The support wheel 403 is in sliding contact with the fixed seat 3.

[0023] The outer ring of the support wheel 403 is wrapped with a wear-resistant rubber layer, which can reduce the resistance when the swing frame 4 rotates, ensure that the swing frame 4 is subjected to balanced force, and ensure that there is no tilting or deviation during the rotation process, thus ensuring the stability of the gear processing seat 5.

[0024] like Figure 5As shown, a mounting frame 501 is slidably fitted through the inner wall of the bottom end of the gear processing seat 5. Multiple gear push rods 502 are fixedly connected to the mounting frame 501. Multiple electric push rods 503 are fixedly connected to the mounting frame 501 in a ring structure. A gear clamping rod 504 is fixedly connected to the output end of each electric push rod 503. The top of the gear clamping rod 504 has a conical structure. A conical surface 509 is formed on the inner wall of the gear processing seat 5. The conical surface 509 on the inner wall of the gear processing seat 5 reduces the adhesion of impurities such as cutting fluid.

[0025] The gear push rod 502 is made of stainless steel and has an elastic buffer pad at the top to prevent damage to the gear teeth when pressing on the gear.

[0026] A support rod assembly 505 is rotatably connected to one side of the placement frame 501. The bottom end of the support rod assembly 505 is rotatably connected to the inner wall of the bottom end of the gear processing seat 5. A connecting rod 506 is rotatably connected to one side of the bottom end of the support rod assembly 505. A sliding rod 507 is rotatably connected to the other end of the connecting rod 506. The sliding rod 507 is slidably engaged with the inner wall of the bottom end of the gear processing seat 5.

[0027] The guide wheel 508 is made of polyurethane, which has good elasticity and wear resistance and high guiding accuracy. It can ensure that the sliding rod 507 moves along the preset trajectory when the swing frame 4 rotates, and then drives the placement frame 501 to rise and fall precisely through the connecting rod 506 and the support rod group 505, so as to realize the automatic lifting and lowering of the gear.

[0028] like Figure 3 As shown, the fixed base 3 has an arc-shaped guide groove 301, and the outer end of the sliding rod 507 is rotatably connected to a guide wheel 508. The inner wall of the arc-shaped guide groove 301 and the outer wall of the guide wheel 508 are slidably fitted together.

[0029] like Figure 6 As shown, the top of the cover plate 6 has an inclined structure with multiple air inlets 601.

[0030] The air inlet 601 has an inclined structure design, which can effectively prevent the machining fluid from entering the interior of the cover plate 6.

[0031] like Figure 6As shown, the gear drying mechanism 7 includes a motor 701, which is fixedly connected to the inner wall of the top of the cover plate 6. An air jet pipe 702 is fixedly connected to the output end of the motor 701. Multiple nozzles 706 are fixedly connected to the air jet pipe 702. The air jet pipe 702 is rotatably connected to the inner wall of the cover plate 6. A turntable 703 is fixedly connected to the outer wall of the air jet pipe 702 inside the cover plate 6. Multiple balls 704 are embedded at the bottom of the turntable 703. The balls 704 slide in contact with the inner wall of the cover plate 6. An air pump 705 is fixedly mounted on the turntable 703. The output end of the air pump 705 is connected to the inner wall of the air jet pipe 702. A conical filter sleeve 707 is threadedly connected to the input end of the air pump 705.

[0032] The turntable 703 is made of alloy steel, ensuring reliable transmission. The ball bearings 704 embedded at the bottom reduce friction during rotation, ensuring smooth rotation and sharing the radial load of the jet pipe 702, thus extending its service life. The air pump 705 is a high-pressure micro air pump, meeting the jet requirements of high-speed airflow. The conical filter sleeve 707 effectively filters out tiny impurities in the air, preventing clogging of the nozzle 706. The threaded connection facilitates disassembly and replacement.

[0033] By setting up a gear drying mechanism 7, after the gear is processed, it is placed in the gear processing seat 5, and the rotating jet pipe 702 can spray the gear surface from all directions, ensuring that the residual cutting fluid on the surface can be efficiently removed, reducing the time and labor cost of manual cleaning. This not only improves cleaning efficiency and reduces production time, but also ensures the size and quality of the gear after processing.

[0034] like Figure 7 , Figure 8 As shown, the transmission mechanism 8 includes a threaded rod 801, both ends of which are rotatably connected to the inner wall of the machine body 1. A transmission wheel 802 is fixedly connected to the top end of the threaded rod 801. A transmission rack 201 is fixedly connected to one of the protective doors 2. The transmission rack 201 meshes with the transmission wheel 802 for transmission. A hydraulic rod 202 is fixedly connected to the bottom end of the protective door 2. The other end of the hydraulic rod 202 is fixedly connected to the inner wall of the machine body 1.

[0035] The transmission rack 201 enables the cover plate 6 to move automatically up and down while the protective door 2 is opened and closed.

[0036] A movable frame 803 is threadedly connected to the outer wall of the threaded rod 801. One end of the movable frame 803 is fixedly connected to the cover plate 6, and the inner wall of the other end of the movable frame 803 is slidably engaged with the outer wall of the transmission shaft 401. A guide head 804 is fixedly connected to the inner wall of the sliding engagement point between the movable frame 803 and the transmission shaft 401. The outer wall of the guide head 804 is slidably engaged with the inner wall of the transmission groove 402.

[0037] Working principle: Before the equipment starts, the protective door 2 is closed, and the cover plate 6 covers the gear processing seat 5. The swing frame 4 moves the gear processing seat 5 to the processing / drying position. When gear loading or unloading is required, the hydraulic rod 202 is activated to drive the protective door 2 to slide open. During the sliding process of the protective door 2, the transmission rack 201 on it meshes with the transmission wheel 802 of the transmission mechanism 8, driving the threaded rod 801 to rotate. The threaded rod 801 drives the moving frame 803 to move upward linearly. One end of the moving frame 803 drives the cover plate 6 to move upward synchronously and open, while the other end drives the transmission shaft 401 to rotate through the sliding engagement of the guide head 804 with the transmission groove 402 on the outer wall of the transmission shaft 401. This causes the swing frame 4 to rotate around the fixed seat 3. During the rotation of the swing frame 4, the guide wheel 508 at the outer end of the sliding rod 507 in the gear processing seat 5 slides along the arc-shaped guide groove 301 of the fixed seat 3. Through the connecting rod 506, the support rod assembly 505 is pushed to unfold. The support rod assembly 505 drives the placement frame 501 to slide upward. The gear push rod 502 on the placement frame 501 lifts the clamped gear until the swing frame 4 drives the gear processing seat 5 to rotate to the protective door 2. The hydraulic rod 202 stops, and the material loading and unloading preparation is completed.

[0038] Then, the operator places the processed gear on the placement rack 501, activates the electric actuator 503, which pushes the gear clamping rod 504 to move inward, achieving centering and positioning of the gear. Subsequently, multiple gear clamping rods 504 work together to evenly clamp the gear. The hydraulic rod 202 is activated to retract, driving the protective door 2 to slide downward and close. Simultaneously, the transmission rack 201 and transmission wheel 802 drive the threaded rod 801 to rotate in the opposite direction, driving the moving frame 803 to move downward. At the same time, the guide head 804, in cooperation with the transmission groove 402, drives the transmission shaft 401 to rotate in the opposite direction, causing the swing frame 4 to rotate the gear processing seat 5 to rotate below the cover plate 6. Then, the moving frame 803 drives the cover plate 6 to rise and fall downward to cover the gear processing seat 5.

[0039] Then, the gear drying mechanism 7 is activated, and the air pump 705 starts to draw in outside air. The air is filtered through the conical filter sleeve 707 and then enters the jet pipe 702. At the same time, the motor 701 starts to drive the jet pipe 702 to rotate at a constant speed. Multiple nozzles 706 on the jet pipe 702 spray high-speed airflow onto the gear surface. The constant speed rotation of the jet pipe 702, combined with the ring-shaped distribution of nozzles 706, achieves thorough cleaning of all parts of the gear teeth, such as the tooth surface and tooth grooves, completely removing residual cutting fluid from the gear surface and removing residual heat from gear processing. During the drying process, the inclined air inlet 601 at the top of the cover plate 6 continuously replenishes air to ensure sufficient air intake for the air pump 705, while preventing cutting fluid and dust from entering the interior of the cover plate 6.

[0040] After drying is completed, the hydraulic rod 202 is extended again to drive the protective door 2 to open. Simultaneously, the cover plate 6 is raised and the swing frame 4 drives the gear processing seat 5 to swing to the material handling position. At the same time, the placement frame 501 slides upward to lift the dried gear. The electric push rod 503 retracts and the gear clamp 504 releases the gear. The operator takes out the dried gear and puts in the next gear to be dried, repeating the above operation process.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A precision gear machining apparatus, comprising a body (1), characterized in that: Two protective doors (2) are slidably fitted on the body (1). A fixed seat (3) is fixedly connected inside the body (1). A swing frame (4) is rotatably connected on the fixed seat (3). A gear processing seat (5) is fixedly connected on the swing frame (4). A cover plate (6) is provided above the gear processing seat (5). A gear drying mechanism (7) is rotatably connected inside the cover plate (6). A transmission mechanism (8) is fixedly connected to the outer wall of the cover plate (6).

2. The precision gear machining apparatus according to claim 1, characterized in that: A drive shaft (401) is fixedly connected to one end of the swing frame (4). A drive groove (402) is provided on the outer wall of the drive shaft (401). The drive groove (402) is composed of two parts: a straight line and a spiral structure. A support wheel (403) is rotatably connected to the bottom of the swing frame (4). The support wheel (403) is in sliding contact with the fixed seat (3).

3. The precision gear machining apparatus according to claim 1, characterized in that: The gear processing seat (5) has a sliding fit with a placement frame (501) at the bottom inner wall. Multiple gear push rods (502) are fixedly connected to the placement frame (501). Multiple electric push rods (503) are fixedly connected to the placement frame (501) in a ring structure. A gear clamping rod (504) is fixedly connected to the output end of the electric push rod (503). The top of the gear clamping rod (504) is tapered. A tapered surface (509) is opened on the inner wall of the gear processing seat (5).

4. The precision gear machining apparatus according to claim 3, characterized in that: A support rod assembly (505) is rotatably connected to one side of the placement frame (501). The bottom end of the support rod assembly (505) is rotatably connected to the inner wall of the bottom end of the gear processing seat (5). A connecting rod (506) is rotatably connected to one side of the bottom end of the support rod assembly (505). A sliding rod (507) is rotatably connected to the other end of the connecting rod (506). The sliding rod (507) is slidably engaged with the inner wall of the bottom end of the gear processing seat (5).

5. The precision gear machining apparatus according to claim 4, characterized in that: The fixed base (3) is provided with an arc-shaped guide groove (301), and the outer end of the sliding rod (507) is rotatably connected to a guide wheel (508). The inner wall of the arc-shaped guide groove (301) and the outer wall of the guide wheel (508) are slidably fitted together.

6. The precision gear machining apparatus according to claim 1, characterized in that: The top of the cover plate (6) has an inclined structure with multiple air inlets (601).

7. The precision gear machining apparatus according to claim 1, characterized in that: The gear drying mechanism (7) includes a motor (701), which is fixedly connected to the inner wall of the top of the cover plate (6). An air jet pipe (702) is fixedly connected to the output end of the motor (701). Multiple nozzles (706) are fixedly connected to the air jet pipe (702). The air jet pipe (702) is rotatably connected to the inner wall of the cover plate (6). A turntable (703) is fixedly connected to the outer wall of the air jet pipe (702) inside the cover plate (6). Multiple balls (704) are embedded at the bottom of the turntable (703). The balls (704) slide in contact with the inner wall of the cover plate (6). An air pump (705) is fixedly installed on the turntable (703). The output end of the air pump (705) is connected to the inner wall of the air jet pipe (702). A conical filter sleeve (707) is threadedly connected to the input end of the air pump (705).

8. The precision gear machining apparatus according to claim 2, characterized in that: The transmission mechanism (8) includes a threaded rod (801), both ends of which are rotatably connected to the inner wall of the machine body (1). A transmission wheel (802) is fixedly connected to the top of the threaded rod (801). A transmission rack (201) is fixedly connected to one of the protective doors (2). The transmission rack (201) meshes with the transmission wheel (802) for transmission. A hydraulic rod (202) is fixedly connected to the bottom of the protective door (2). The other end of the hydraulic rod (202) is fixedly connected to the inner wall of the machine body (1).

9. The precision gear machining apparatus according to claim 8, characterized in that: The threaded rod (801) is threadedly connected to a movable frame (803). One end of the movable frame (803) is fixedly connected to the cover plate (6). The inner wall of the other end of the movable frame (803) is slidably engaged with the outer wall of the transmission shaft (401). A guide head (804) is fixedly connected to the inner wall of the sliding engagement point between the movable frame (803) and the transmission shaft (401). The outer wall of the guide head (804) is slidably engaged with the inner wall of the transmission groove (402).

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