Gear honing blank screening device and method

Abstract

The invention relates to a gear honing blank screening device and method, and belongs to the technical field of gear machining. The gear honing blank screening device comprises a rack and a clamping shaft which is arranged below the rack and used for clamping a gear honing blank to be detected to rotate; the first standard honing gear is arranged on the rack, and the first standard honing gear is meshed with a to-be-detected honing gear blank; the pressure applying unit is arranged on the rack, and the pressure applying unit is configured to enable the first standard honing gear to be engaged with the to-be-detected honing gear blank; the detection structure comprises a mounting bracket and a detector, the mounting bracket is slidably arranged on the rack in the vertical direction, the first standard honing gear is arranged on the mounting bracket, the detector is arranged on the rack, and the detector is configured to measure displacement data of the mounting bracket in the vertical direction in the meshing process of the to-be-detected honing gear blank and the first standard honing gear. By detecting the displacement data of the first standard honing gear in the meshing transmission process, whether the to-be-detected honing gear blank is qualified or not can be determined.

Description

Technical Field

[0001] The invention belongs to the technical field of gear processing and relates to a device and method for screening gear honing blanks. Background Art

[0002] In the field of modern mechanical manufacturing, gears are key components in the transmission system, and their processing accuracy directly affects the performance and life of the entire mechanical system. In order to meet the increasing precision requirements, gear processing technology continues to develop, among which high-power gear honing technology has been widely used as an efficient super-precision grinding method.

[0003] Power honing is a technology that uses a honing wheel to perform precision machining on gears, which can effectively improve the surface quality and dimensional accuracy of gears. Compared with traditional gear grinding technology, power honing has the advantages of high processing efficiency, low surface roughness, and high processing accuracy. However, this technology has extremely strict requirements on the dimensional accuracy of the previous gear blank.

[0004] During the power honing process, the dimensional deviation of the gear blank directly affects the stability of the processing and the quality of the final product. If the size of the gear blank is too large, the honing machining allowance is too large, which may cause the honing wheel to bear excessive cutting force, and then cause the honing wheel to explode, causing equipment damage and production accidents. If the size of the gear blank is too small, part of the tooth surface may not be effectively removed during the processing, resulting in a decrease in the processing accuracy of the gear, affecting the meshing performance and service life of the gear.

[0005] In the prior art, there is only a solution of screening gears of different sizes through multiple channels with different diameters, but it is not possible to screen whether the size of the gear blank for honing is qualified. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a device and method for screening honing blanks. The device for screening honing blanks detects the displacement data of the first standard honing gear along the height direction during the meshing transmission process by making the honing blank to be tested rotate and mesh with the first standard honing gear, and compares it with the preset variation range to determine whether the honing blank to be tested is qualified.

[0007] In order to achieve the above object, the present invention provides a screening device for gear honing blanks, comprising:

[0008] frame,

[0009] A clamping shaft is arranged below the frame and is used to clamp the gear blank to be inspected for honing and rotate;

[0010] A first standard honing gear is arranged on the frame, and the first standard honing gear is meshed with the gear blank to be honed;

[0011] A pressure unit, the pressure unit is arranged on the frame, and the pressure unit is configured to keep the first standard honing gear meshing with the honing gear blank to be tested;

[0012] The detection structure includes a mounting bracket and a detector. The mounting bracket is slidably arranged on a frame along a vertical direction. The first standard honing gear is arranged on the mounting bracket. The detector is arranged on the mounting bracket. The detector is configured to measure the displacement data of the mounting bracket along the vertical direction during the meshing process of the honing gear blank to be detected and the first standard honing gear.

[0013] The honing blank screening device of the present invention keeps the first standard honing gear meshing with the honing gear blank to be tested through a pressure unit, and the clamping shaft rotates to drive the honing gear blank to be tested to mesh and rotate with the first standard honing gear, detects the displacement data of the first standard honing gear along the height direction during the meshing transmission process, and compares it with the preset variation range to determine whether the honing gear blank to be tested is qualified. The operation is convenient, and the detection result of whether the honing gear blank is qualified is accurate.

[0014] Optionally, the detector includes a length meter, which includes a mounting body and a measuring head. The mounting body is fixedly mounted on the mounting bracket, one end of the measuring head is telescopically disposed on the mounting body, and the other end abuts against a measuring table on the first surface of the frame.

[0015] Optionally, the pressure unit includes a cylinder, a cylinder body of the cylinder is fixedly mounted on the frame, and a telescopic end of the cylinder is fixedly connected to a mounting bracket.

[0016] Optionally, a buffer is fixedly connected to the telescopic end of the cylinder, and a top rod of the buffer is opposite to a fixing screw on the frame.

[0017] Optionally, an air blowing device is further included, wherein an air blowing pipe of the air blowing device is arranged on the mounting bracket, and an air outlet of the air blowing pipe faces the first standard honing gear.

[0018] Optionally, an alarm device is also included, which is electrically connected to the detector. When the displacement data exceeds a preset range of change, the alarm device sounds an alarm.

[0019] The present invention also provides a method for screening gear honing blanks, which is applied to any of the above-mentioned gear honing blank screening devices, and the method comprises:

[0020] S1: Install the second standard honing gear to the clamping shaft, so that the second standard honing gear meshes and rotates with the first standard honing gear, and the detection structure obtains the displacement range of the standard honing gear, compares it with the preset variation range, and calibrates the honing blank screening device;

[0021] S2: The gear blank to be inspected for honing is mounted on the clamping shaft, and the clamping shaft drives the gear blank to be inspected for honing to rotate at a low speed;

[0022] S3: The telescopic end of the cylinder extends forward, driving the first standard honing gear to move toward the honing gear blank to be measured, until the first standard honing gear meshes with the honing gear blank to be measured;

[0023] S4: The clamping shaft rotates at high speed, and the detector detects the displacement data of the first standard honing gear along the height direction, and compares it with the preset variation range to determine whether the honing gear blank to be tested is qualified.

[0024] The present invention is beneficial in that:

[0025] The method for screening honing blanks of the present invention calibrates the screening device for honing blanks by meshing and rotating the second standard honing gear with the first standard honing gear, thereby ensuring the accuracy of the judgment data during the detection process. The first standard honing gear is kept in meshing with the honing gear blank to be detected by a pressure unit, and the clamping shaft is rotated to drive the honing gear blank to be detected to mesh and rotate with the first standard honing gear. The displacement data of the first standard honing gear along the height direction during the meshing transmission process is detected and compared with the preset variation range to determine whether the honing gear blank to be tested is qualified. The screening device and screening method of the present invention can accurately detect whether the honing gear blank is qualified, and also have the advantage of easy operation.

[0026] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 It is a structural schematic diagram of a gear honing blank screening device according to an embodiment of the present invention;

[0029] Figure 2 is a flow chart of a method for screening gear honing blanks according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of a meshing process between a first standard honing gear and a honing gear blank to be tested in a method for screening honing blanks according to an embodiment of the present invention;

[0031] Figure 4 The second schematic diagram of the meshing process between the first standard honing gear and the honing gear blank to be tested in the method for screening honing blanks according to an embodiment of the present invention;

[0032] Figure 5This is a third schematic diagram of the meshing process between the first standard honing gear and the honing gear blank to be tested in the method for screening honing blanks according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1-frame; 2-gear blank to be tested for honing; 3-first standard honing gear; 4-pressure unit; 41-cylinder; 42-buffer; 421-thrust rod; 43-fixing screw; 5-detection structure; 51-mounting bracket; 52-detector; 521-length gauge; 5211-mounting body; 5212-metering head; 53-measuring table; 6-air blowing pipe. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 A honing blank screening device may include: a frame 1, a clamping shaft, a first standard honing gear 3 and a detection structure 5.

[0039] A clamping shaft (not shown in the figure) is arranged below the frame 1, and the clamping shaft is used to clamp the gear blank 2 to be inspected for honing and rotate. For example, the clamping shaft can be two coaxial main shafts opposite to each other, and retractable clamping members for clamping the gear blank 2 to be inspected are provided on the opposite surfaces of the two main shafts. The clamping members clamp the gear blank to be inspected for honing, so that the gear blank to be inspected for honing rotates together with the clamping shaft.

[0040] The first standard honing gear 3 is arranged on the frame 1, and the first standard honing gear 3 is meshed with the to-be-detected honing gear blank 2. The detection structure 5 may include a mounting bracket 51 and a detector 52, the mounting bracket 51 is slidably arranged on the frame 1 along the vertical direction, the first standard honing gear 3 is arranged on the mounting bracket 51, and the detector 52 is arranged on the mounting bracket 51, and the detector 52 is configured to measure the displacement data of the mounting bracket 51 along the vertical direction during the meshing process of the to-be-detected honing gear blank 2 and the first standard honing gear 3.

[0041] The pressure unit 4 is disposed on the frame 1, and is configured to keep the first standard honing gear 3 engaged with the to-be-detected honing gear blank 2. For example, the pressure unit 4 applies a force toward one of the first standard honing gear 3 and the to-be-detected honing gear blank 2 toward the other. In this way, during the meshing and rotation of the first standard honing gear 3 and the to-be-detected honing gear blank 2, even if the first standard honing gear 3 and the mounting bracket 51 have a vertical displacement, the first standard honing gear 3 and the to-be-detected honing gear blank 2 can maintain a meshing state.

[0042] The honing blank screening device of the present invention keeps the first standard honing gear 3 in mesh with the honing gear blank 2 to be tested through the pressure unit 4, and the clamping shaft rotates to drive the honing gear blank 2 to be tested to mesh and rotate with the first standard honing gear 3, detects the displacement data of the first standard honing gear 3 along the height direction during the meshing transmission process, and compares it with the preset variation range to determine whether the honing gear blank to be tested is qualified. The operation is convenient, and the detection result of whether the honing blank is qualified is accurate.

[0043] In some possible implementations, the detector 52 may include a length meter 521, and the length meter 521 includes a mounting body 5211 and a metering head 5212. The mounting body 5211 is fixedly mounted on the mounting bracket 51, and one end of the metering head 5212 is telescopically arranged on the mounting body 5211, and the other end is in contact with the measuring table 53 on the first surface of the frame 1. In this way, when the mounting bracket 51 moves in the vertical direction, the displacement data of the mounting bracket 51 in the vertical direction during the meshing process between the to-be-tested honing gear blank 2 and the first standard honing gear 3 can be measured by detecting the displacement of the metering head 5212.

[0044] In some possible implementations, the pressure unit 4 includes a cylinder 41, the cylinder body of the cylinder 41 is fixedly mounted on the frame 1, and the telescopic end of the cylinder 41 is fixedly connected to the mounting bracket 51. By continuously passing gas into the cylinder 41, the telescopic end of the cylinder 41 applies a force to the mounting bracket 51, so that the to-be-tested honed gear blank 2 is kept in mesh with the first standard honed gear 3. Moreover, by applying a force to the mounting bracket 51 through the cylinder 41, the impact on the to-be-tested honed gear blank 2 is small, which is conducive to improving product quality.

[0045] According to some embodiments of the present invention, a buffer 42 is fixedly connected to the telescopic end of the cylinder 41, and a push rod 421 of the buffer 42 is opposite to a fixing screw 43 on the frame 1. In this way, the buffer 42 applies a reverse thrust to the telescopic end of the cylinder 41, so as to avoid the situation that after the to-be-detected honed gear blank 2 and the first standard honing gear 3 are meshed, they are squeezed with each other, resulting in damage to the to-be-detected honed gear blank 2.

[0046] In some possible implementations, the honing blank screening device may further include an air blowing device, wherein an air blowing pipe 6 of the air blowing device is disposed on the mounting bracket 51, and an air outlet of the air blowing pipe 6 faces the first standard honing gear 3. In this way, in the process of preventing the honing gear blank 2 to be inspected from meshing and rotating with the first standard honing gear 3, the surface of the first standard honing gear 3 is cleaned and blown to prevent dirt and impurities from affecting the accuracy of the inspection.

[0047] In some possible implementations, the gear-honing blank screening device may further include an alarm device, which is electrically connected to the detector 52. When the displacement data exceeds a preset range of variation, the alarm device alarms. In this way, during the process of the gear-honing blank 2 to be tested and the first standard honing gear 3 meshing and rotating, the alarm device detects the data signal output by the detector 52. When the received displacement data is within the preset range of variation, the gear-honing blank 2 to be tested is qualified. When the received displacement data exceeds the preset range of variation, the gear-honing blank 2 to be tested is unqualified, the alarm device alarms, and the gear-honing blank 2 to be tested is marked as a defective product, thereby improving the screening efficiency.

[0048] See also Figure 2 In a second aspect, an embodiment of the present invention further provides a method for screening gear honing blanks, which is applied to the above-mentioned gear honing blank screening device. The method may include the following steps:

[0049] S1: Install the second standard honing gear to the clamping shaft, so that the second standard honing gear meshes and rotates with the first standard honing gear 3, and the detection structure 5 obtains the displacement range of the standard honing gear, compares it with the preset variation range, and calibrates the honing blank screening device;

[0050] S2: The gear blank 2 to be inspected for honing is mounted on the clamping shaft, and the clamping shaft drives the gear blank 2 to be inspected for honing to rotate at a low speed;

[0051] S3: The telescopic end of the cylinder 41 extends forward, driving the first standard honing gear 3 to move toward the honing gear blank to be measured, until the first standard honing gear 3 is meshed with the honing gear blank to be measured;

[0052] S4: The clamping shaft rotates at high speed, and the detector 52 detects the displacement data of the first standard honing gear 3 along the height direction, and compares it with the preset variation range to determine whether the honing gear blank to be tested is qualified.

[0053] Among them, the calibration of the honing blank screening device in S1 may include: after the honing blank screening device is assembled, the worker manually operates the clamping shaft and the cylinder 41 to make the first standard honing gear 3 mesh with the second standard honing gear (the second standard honing gear here serves as a correction gear). After the meshing is in place, the position of the metering head 5212 of the length gauge 521 is adjusted to make the metering head 5212 fit the measuring table 53. In order to ensure the accuracy of the detection effect, the metering head 5212 can have a certain amount of contraction in the mounting body 5211 of the length gauge 521, so that the expansion and contraction amount of the metering head 5212 corresponds more accurately to the displacement of the mounting bracket 51. Then, the first standard honing gear 3 is driven to move up and down by the rotation of the clamping shaft. After rotating to a preset number of circles, the feedback size of the length gauge 521 is within the preset range of variation, which means that the adjustment is in place.

[0054] See also Figures 3 to 5 In S2, the clamping shaft drives the to-be-tested honed gear blank 2 to rotate at a low speed. At this time, the rotation speed of the to-be-tested honed gear blank 2 is much lower than the speed at which the cylinder 41 of the pressure unit 4 drives the first standard honing gear 3 to move. In this way, when entering into meshing, even if the first standard honing gear 3 and the to-be-tested honed gear blank 2 are in a state of tooth top to tooth top, the two teeth can be staggered in phase by the rotation of the clamping shaft, thereby entering into meshing.

[0055] In S3, when the telescopic end of the cylinder 41 extends forward to drive the first standard honing gear 3 to move toward the honing gear blank to be tested, the top rod 421 of the buffer 42 first abuts against the fixing screw 43 on the frame 1, and applies a buffering force to the mounting bracket 51, thereby reducing the rigid impact between the first standard honing gear 3 and the honing gear blank 2 to be tested, so that the first standard honing gear 3 and the honing gear blank 2 to be tested complete the engagement.

[0056] In S4, when the displacement data exceeds the preset variation range, the alarm device sounds an alarm and marks the gear blank 2 to be inspected as a defective product.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A device for screening gear honing blanks, characterized in that: include: Rack(1), A clamping shaft is arranged below the frame (1), and is used to clamp the gear blank (2) to be inspected for honing and rotate; A first standard honing gear (3) is arranged on the frame (1), and the first standard honing gear (3) is meshed with the honing gear blank (2) to be tested; A pressure unit (4), the pressure unit (4) is arranged on the frame (1), and the pressure unit (4) is configured to keep the first standard honing gear (3) meshing with the honing gear blank (2) to be tested; The detection structure (5) comprises a mounting bracket (51) and a detector (52), wherein the mounting bracket (51) is slidably arranged on a frame (1) along a vertical direction, a first standard honing gear (3) is arranged on the mounting bracket (51), and the detector (52) is arranged on the mounting bracket (51), and the detector (52) is configured to measure displacement data of the mounting bracket (51) along a vertical direction during the meshing process between a honing gear blank (2) to be detected and the first standard honing gear (3).

2. The gear honing blank screening device according to claim 1, characterized in that: The detector (52) comprises a length meter (521), and the length meter (521) comprises a mounting body (5211) and a metering head (5212), wherein the mounting body (5211) is fixedly mounted on the mounting bracket (51), and one end of the metering head (5212) is telescopically arranged on the mounting body (5211), and the other end is in contact with a measuring table (53) on the first surface of the frame (1).

3. The gear honing blank screening device according to claim 1, characterized in that: The pressure unit (4) comprises a cylinder (41), a cylinder body of the cylinder (41) is fixedly mounted on the frame (1), and a telescopic end of the cylinder (41) is fixedly connected to a mounting bracket (51).

4. The gear honing blank screening device according to claim 3, characterized in that: The telescopic end of the cylinder (41) is fixedly connected with a buffer (42), and the top rod (421) of the buffer (42) is opposite to the fixing screw (43) on the frame (1).

5. The gear honing blank screening device according to claim 1, characterized in that: It also comprises an air blowing device, wherein an air blowing pipe (6) of the air blowing device is arranged on the mounting bracket (51), and an air outlet of the air blowing pipe (6) faces the first standard honing gear (3).

6. The gear honing blank screening device according to claim 1, characterized in that: It also includes an alarm device, which is electrically connected to the detector (52) and sounds an alarm when the displacement data exceeds a preset variation range.

7. A method for screening gear honing blanks, characterized in that: The gear honing blank screening device according to any one of claims 1 to 6, the method comprising: S1: Install the second standard honing gear on the clamping shaft, so that the second standard honing gear meshes with the first standard honing gear (3) and rotates, and the detection structure (5) obtains the displacement range of the standard honing gear, compares it with the preset variation range, and calibrates the honing blank screening device; S2: The gear blank (2) to be inspected for honing is mounted on the clamping shaft, and the clamping shaft drives the gear blank (2) to be inspected for honing to rotate at a low speed; S3: the telescopic end of the cylinder (41) extends forward, driving the first standard honing gear (3) to move toward the honing gear blank to be measured, until the first standard honing gear (3) is meshed with the honing gear blank to be measured; S4: The clamping shaft rotates at a high speed, and the detector (52) detects the displacement data of the first standard honing gear (3) along the height direction, compares it with the preset variation range, and determines whether the honing gear blank to be tested is qualified.

Images