Double Gear Composite Gasket Clearance Detection Device

Abstract

The present invention discloses a double-gear composite gasket clearance detection device, comprising: a product positioning mechanism, around which at least one gear detection mechanism as described in Claim 1 or 2 is provided; the product positioning mechanism is used for fixing the double gears to be detected. The present invention measures the gasket clearance of the planetary gears through the gear detection mechanism. In addition, by cooperating with the product positioning mechanism to form a double-gear composite gasket clearance detection device, the double gears can be effectively fixed, and by rotating the double gears and configuring multiple gear detection mechanisms, the efficiency of clearance measurement can be improved. This design has a reasonable structure, low cost, high measurement accuracy and high efficiency.

Description

Technical Field

[0001] The present invention relates to a double - gear composite gasket clearance detection device, belonging to the technical field of mechanical part measuring devices. Background Technique

[0002] At present, as a product in gear transmission, double - gears are widely used in the transmission of various mechanical equipment. In a general servo - electromechanical system, if the error of the tooth - side clearance of the gear is too large, it will cause the servo system to lag and reduce the machining accuracy of the automation equipment.

[0003] As Figure 1 shown, there is a clearance between the planet gear 030 and the planet carrier 010 in the double - gear through the gasket 020. The clearance of qualified products should meet 0.28 - 0.78 mm. Therefore, the detection of the double - gear clearance is very crucial. For traditional detection methods, manual measurement is used, and the measurement accuracy and stability cannot be guaranteed, resulting in a large number of misdetections and affecting the quality of double - gears. Summary of the Invention

[0004] Objective: To overcome the problem of low accuracy of manual measurement in the prior art, the present invention provides a double - gear composite gasket clearance detection device.

[0005] Technical Solution: To solve the above - mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A gear detection mechanism, comprising: a mounting base, a first linear guide rail is arranged on the top of the mounting base, a horizontal cylinder mounting frame, a slider on the first linear guide rail has a mounting frame fixed to its top, a horizontal cylinder is arranged on the horizontal cylinder mounting frame, and the piston rod of the horizontal cylinder is connected to the mounting frame to drive the mounting frame to move horizontally along the first linear guide rail; a second linear guide rail is fixed inside the mounting frame, a vertical cylinder is arranged on the top of the mounting frame, the top of the slider on the second linear guide rail is connected to the piston rod of the vertical cylinder, the side of the slider on the second linear guide rail is connected to the side of the jaw cylinder connecting block, and the piston rod of the vertical cylinder drives the jaw cylinder connecting block to move vertically along the second linear guide rail; a jaw cylinder is arranged on the jaw cylinder connecting block, and upper jaws and lower jaws are respectively arranged at the free ends of the jaw cylinder; a displacement sensor is fixed at the free end of the top of the mounting frame, and the end of the displacement sensor pull rod is connected to the upper jaw; a measuring thin sheet is arranged at the free end of the upper jaw and / or the lower jaw.

[0007] A double - gear composite gasket clearance detection device, comprising: a product positioning mechanism, at least one gear detection mechanism as described in claim 1 or 2 is arranged around the product positioning mechanism; the product positioning mechanism is used to fix the double - gear to be detected.

[0008] As a preferred solution, a clamping portion adapted to the edge of the gasket is provided at the free end of the measuring thin sheet.

[0009] As a preferred solution, the product positioning mechanism includes: a second mounting base, a servo motor is arranged inside the second mounting base, a speed reducer is arranged on the top of the servo motor, and the positioning seat is connected to the speed reducer through a rotating shaft; on one side of the top of the second mounting base, a rotary pressing cylinder is arranged, and a pressing block is fixed to the free end of the piston rod of the rotary pressing cylinder.

[0010] As a preferred solution, it further includes a groove sensor, and the groove sensor is arranged on one side of the positioning seat.

[0011] As a preferred solution, the positioning seat includes: a base, a first boss is arranged on the top of the base, and at least one anti-rotation groove is arranged around the first boss; a second boss is arranged on the first boss.

[0012] Beneficial effects: The double-gear composite gasket clearance detection device provided by the present invention measures the gasket clearance of the planetary gear through the gear detection mechanism. In addition, by cooperating with the product positioning mechanism to form a double-gear composite gasket clearance detection device, the double gears can be effectively fixed, and by rotating the double gears and configuring multiple gear detection mechanisms, the efficiency of clearance measurement can be improved. This design has a reasonable structure, low cost, high measurement accuracy, and high efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of a double-gear structure;

[0014] Figure 2 It is a schematic diagram of the structure of the gear detection mechanism;

[0015] Figure 3 It is a schematic diagram of the structure of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the product positioning mechanism;

[0017] Figure 5 It is a schematic diagram of the structure of the positioning seat;

[0018] Figure 6 It is a schematic diagram of the upper gap measurement situation 1 of the planetary gear;

[0019] Figure 7 It is a schematic diagram of the upper gap measurement situation 2 of the planetary gear;

[0020] Figure 8 It is a schematic diagram of the lower gap measurement of the planetary gear. Detailed Embodiments

[0021] The present invention will be further described in detail below with reference to the drawings.

[0022] As shown Figure 2 in the figure, a gear detection mechanism includes: a mounting base 1, on the top of the mounting base 1 is provided a first linear guide rail 2, a horizontal cylinder mounting frame 3, the top of the slider on the first linear guide rail 2 is fixed with a mounting frame 4, on the horizontal cylinder mounting frame 3 is provided a horizontal cylinder 5, the piston rod of the horizontal cylinder 5 is connected to the mounting frame 4 to drive the mounting frame 4 to move horizontally along the first linear guide rail 2; inside the mounting frame 4 is fixed a second linear guide rail 6, on the top of the mounting frame 4 is provided a vertical cylinder, the top of the slider on the second linear guide rail 6 is connected to the piston rod 7 of the vertical cylinder, the side of the slider on the second linear guide rail 6 is connected to the side of a jaw cylinder connecting block 8, the piston rod 7 of the vertical cylinder drives the jaw cylinder connecting block 8 to move vertically along the second linear guide rail 6; on the jaw cylinder connecting block 8 is provided a jaw cylinder 9, the free ends of the jaw cylinder 9 are respectively provided with an upper jaw 901 and a lower jaw 902; at the free end of the top of the mounting frame 4 is fixed a displacement sensor 10, the end of the pull rod of the displacement sensor 10 is connected to the upper jaw 901; at the free ends of both the upper jaw 901 and the lower jaw 902 are provided with measuring thin sheets 11.

[0023] At the free end of the measuring thin sheet 11 is provided a clamping portion that cooperates with the edge of the gasket for the free end of the measuring thin sheet to contact the edge of the gasket.

[0024] As shown Figure 3 in the figure, a double-gear composite gasket clearance detection device includes: a product positioning mechanism 02, at least one gear detection mechanism 01 is arranged around the product positioning mechanism 02; the product positioning mechanism 02 is used to fix the double gears to be detected.

[0025] As shown Figure 4 in the figure, the product positioning mechanism 02 includes: a second mounting base 12, inside the second mounting base 12 is provided a servo motor 13, on the top of the servo motor 13 is provided a speed reducer 14, a positioning seat 15 is connected to the speed reducer 14 through a rotating shaft; on one side of the top of the second mounting base 12 is provided a rotary pressing cylinder 16, the free end of the piston rod of the rotary pressing cylinder 16 is fixed with a pressing block 17.

[0026] It further includes a groove sensor 18, on one side of the positioning seat 15 is provided a groove sensor 18 for measuring the rotation angle of the positioning seat.

[0027] As shown Figure 5 in the figure, the positioning seat 15 includes: a base 19, on the top of the base 19 is provided a first boss 20, around the first boss 20 is provided at least one anti-rotation groove 21; on the first boss 20 is provided a second boss 22. The anti-rotation groove on the first boss is used to cooperate with the convex surface at the bottom of the double gears to prevent the double gears from rotating axially with the positioning seat, and the second boss is inserted into the groove at the bottom of the double gears for positioning.

[0028] Example:

[0029] Before measurement, put the bottom of the double gear on the base of the positioning seat. The central groove of the double gear is positioned with the second boss, and the convex surface on the bottom surface of the double gear is fitted and positioned with the anti-rotation groove around the first boss. The number of anti-rotation grooves can be set according to the number of convex surfaces on the bottom surface of the double gear. In this example, three anti-rotation grooves are set. Start the rotary pressing cylinder to fix the pressing block on the top surface of the double gear, and complete the fixation of the double gear on the product positioning mechanism.

[0030] According to the number of planet gears in the double gear, configure different numbers of gear detection mechanisms around the product positioning mechanism, and set different rotation angles of the positioning seat according to the different numbers of gear detection mechanisms to ensure that different planet gear clearances can be measured each time it rotates. In this example, the number of planet gears in the double gear is six, and two gear detection mechanisms are set. The positioning seat controls the drive motor to rotate 120° each time through the groove sensor, and the planet gear clearance measurement is completed after one week.

[0031] The measurement of the planet gear clearance is divided into two steps, including: the measurement of the upper clearance of the planet gear and the measurement of the lower clearance of the planet gear.

[0032] When the gear detection mechanism faces a planet gear and starts to measure, the jaw cylinder opens.

[0033] As Figure 6 shown, when there is no space for the lower jaw to insert and move up and down on the side of the positioning seat after the double gear is fixed, the measurement of the upper clearance of the planet gear in Case 1 is carried out. The horizontal cylinder is started, and the measuring thin sheet at the front end of the lower jaw is inserted into the upper clearance of the planet gear. When the clamping part of the measuring thin sheet contacts the edge of the gasket, the horizontal cylinder stops working. The jaw cylinder continues to work and opens to both sides. When the measuring thin sheet at the front end of the lower jaw contacts the top of the planet gear, the jaw cylinder stops working. At this time, the upper jaw is above the double gear. The displacement sensor reads for the first time to obtain the height h1 of the upper jaw. Start the vertical cylinder to drive the jaw cylinder to move up as a whole. When the measuring thin sheet at the front end of the lower jaw contacts the bottom of the planet carrier, the displacement sensor reads for the second time to obtain the height h2 of the upper jaw, and calculate the upper clearance of the planet gear: h1 - h2 + the thickness of the measuring thin sheet. Repeat the above steps, and the average value of multiple measurements can be taken to make the clearance measurement more accurate.

[0034] As Figure 7As shown, after the double gears are fixed, when there is space for the lower jaws on the side of the positioning seat to insert and move up and down, the measurement of the upper clearance of the planetary gear is carried out in Case 2. The horizontal cylinder is activated, and the measuring sheet at the front end of the upper jaw is inserted into the upper clearance of the planetary gear. When the clamping part of the measuring sheet contacts the edge of the gasket, the horizontal cylinder stops working. The jaw cylinder continues to work and opens to both sides. When the measuring sheet at the front end of the upper jaw contacts the bottom of the planet carrier, the jaw cylinder stops working. At this time, the lower jaw is below the double gears. The first reading of the displacement sensor is taken to obtain the height h1 of the upper jaw. The vertical cylinder is activated to drive the entire jaw cylinder to move downward. When the measuring sheet at the front end of the upper jaw contacts the upper part of the planetary gear, the second reading of the displacement sensor is taken to obtain the height h2 of the upper jaw. Calculate the upper clearance of the planetary gear: h2 - h1 + the thickness of the measuring sheet. Repeat the above steps, and the average value of multiple measurements can be taken to make the clearance measurement more accurate.

[0035] As Figure 8 shown, for the measurement of the lower clearance of the planetary gear, the horizontal cylinder is activated, and the measuring sheet at the front end of the lower jaw is inserted into the lower clearance of the planetary gear. When the clamping part of the measuring sheet contacts the edge of the gasket, the horizontal cylinder stops working. The jaw cylinder continues to work and opens to both sides. When the measuring sheet at the front end of the lower jaw contacts the top of the planet carrier, the jaw cylinder stops working. At this time, the upper jaw is above the double gears. The first reading of the displacement sensor is taken to obtain the height h1 of the upper jaw. The vertical cylinder is activated to drive the entire jaw cylinder to move upward. When the measuring sheet at the front end of the lower jaw contacts the bottom of the planetary gear, the second reading of the displacement sensor is taken to obtain the height h2 of the upper jaw. Calculate the lower clearance of the planetary gear: h1 - h2 + the thickness of the measuring sheet. Repeat the above steps, and the average value of multiple measurements can be taken to make the clearance measurement more accurate.

[0036] Through the above steps, the measurement of the upper and lower clearances of one planetary gear is completed. The positioning seat rotates, driving the double gears to rotate. The gear detection mechanism faces the next planetary gear, and the above measurement steps are repeated.

[0037] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A gear detection mechanism, comprising: Mounting base, characterized in that: a first linear guide rail is provided at the top of the mounting base, and a horizontal cylinder mounting frame. A mounting frame is fixed to the top of the slider on the first linear guide rail. A horizontal cylinder is provided on the horizontal cylinder mounting frame, and the piston rod of the horizontal cylinder is connected to the mounting frame to drive the mounting frame to move horizontally along the first linear guide rail; a second linear guide rail is fixed inside the mounting frame, a vertical cylinder is provided at the top of the mounting frame, the top of the slider on the second linear guide rail is connected to the piston rod of the vertical cylinder, and the side of the slider on the second linear guide rail is connected to the side of the jaw cylinder connecting block. The piston rod of the vertical cylinder drives the jaw cylinder connecting block to move vertically along the second linear guide rail; a jaw cylinder is provided on the jaw cylinder connecting block, and an upper jaw and a lower jaw are respectively provided at the free ends of the jaw cylinder; a displacement sensor is fixed to the free end at the top of the mounting frame, and the end of the displacement sensor pull rod is connected to the upper jaw; a measuring thin sheet is provided at the free end of the upper jaw and / or the lower jaw; A clamping portion adapted to the edge of the gasket is provided at the free end of the measuring thin sheet; For the first case of measuring the upper clearance of the planetary gear, the specific steps are as follows: Step 1.1: The horizontal cylinder is started, and the measuring thin sheet at the front end of the lower jaw is inserted into the upper clearance of the planetary gear. When the clamping portion of the measuring thin sheet contacts the edge of the gasket, the horizontal cylinder stops working; Step 1.2: The jaw cylinder continues to work and opens to both sides. When the measuring thin sheet at the front end of the lower jaw contacts the top of the planetary gear, the jaw cylinder stops working. At this time, the upper jaw is above the double gear; the first reading of the displacement sensor is taken to obtain the height h1 of the upper jaw. The vertical cylinder is started to drive the whole jaw cylinder to move up. When the measuring thin sheet at the front end of the lower jaw contacts the bottom of the planet carrier, the second reading of the displacement sensor is taken to obtain the height h2 of the upper jaw. Calculate the upper clearance of the planetary gear: h1 - h2 + the thickness of the measuring thin sheet; Step 1.3: Repeat Step 1.1 and Step 1.2, and take the average value of multiple measurements as the measured value of the upper clearance of the planetary gear; For the second case of measuring the upper clearance of the planetary gear, the specific steps are as follows: Step 2.1: The horizontal cylinder is started, and the measuring thin sheet at the front end of the upper jaw is inserted into the upper clearance of the planetary gear. When the clamping portion of the measuring thin sheet contacts the edge of the gasket, the horizontal cylinder stops working; Step 2.2: The jaw cylinder continues to work and opens to both sides. When the measuring thin sheet at the front end of the upper jaw contacts the bottom of the planet carrier, the jaw cylinder stops working. At this time, the lower jaw is below the double gear; the first reading of the displacement sensor is taken to obtain the height h1 of the upper jaw. The vertical cylinder is started to drive the whole jaw cylinder to move down. When the measuring thin sheet at the front end of the upper jaw contacts the upper part of the planetary gear, the second reading of the displacement sensor is taken to obtain the height h2 of the upper jaw. Calculate the upper clearance of the planetary gear: h2 - h1 + the thickness of the measuring thin sheet; Step 2.3: Repeat Step 2.1 and Step 2.2, and take the average value of multiple measurements as the measured value of the upper clearance of the planetary gear; For measuring the lower clearance of the planetary gear, the specific steps are as follows: Step 3.1: The horizontal cylinder is started, and the measuring thin sheet at the front end of the lower jaw is inserted into the lower clearance of the planetary gear. When the clamping portion of the measuring thin sheet contacts the edge of the gasket, the horizontal cylinder stops working; Step 3.2: The jaw cylinder continues to work and opens to both sides. When the measuring sheet at the front end of the lower jaw contacts the top of the planetary carrier, the jaw cylinder stops working. At this time, the upper jaw is above the double gear; the displacement sensor reads for the first time to obtain the height h1 of the upper jaw, and the vertical cylinder is started to drive the whole jaw cylinder to move upward. When the measuring sheet at the front end of the lower jaw contacts the bottom of the planetary gear, the displacement sensor reads for the second time to obtain the height h2 of the upper jaw, and calculate the lower clearance of the planetary gear: h1 - h2 + the thickness of the measuring sheet; Step 3.3: Repeat Step 3.1 and Step 3.2, and take the average value of multiple measurements as the measured value of the lower clearance of the planetary gear.

2. A double-gear composite gasket clearance detection device, comprising: The product positioning mechanism is characterized in that at least one gear detection mechanism as described in Claim 1 is arranged around the product positioning mechanism; the product positioning mechanism is used to fix the double gear to be detected.

3. The double-gear composite gasket clearance detection device according to claim 2, characterized in that: The product positioning mechanism includes: a second mounting base, a servo motor is arranged in the second mounting base, a reducer is arranged on the top of the servo motor, and the positioning seat is connected to the reducer through a rotating shaft; a rotary pressing cylinder is arranged on one side of the top of the second mounting base, and a pressing block is fixed to the free end of the piston rod of the rotary pressing cylinder.

4. The double-gear composite gasket clearance detection device according to claim 3, characterized in that: It further includes a groove sensor, and the groove sensor is arranged on one side of the positioning seat.

5. The double-gear composite gasket clearance detection device according to claim 3, characterized in that: The positioning seat includes: a base, a first boss is arranged on the top of the base, and at least one anti-rotation groove is arranged around the first boss; a second boss is arranged on the first boss.

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