Double-shaft vertical automatic bearing sound detection machine and sound detection equipment

Abstract

The utility model discloses a double-shaft vertical automatic bearing sound detection machine and sound detection equipment, comprising an upper die, the upper die is driven by a driving cylinder to lift and is driven by an upper die servo motor to rotate, the bottom of the upper die is provided with three detection blocks and a stripping block which are arranged on the same circumference, the detection blocks are uniformly distributed, and the stripping block is arranged on the upper die. An elastic piece is arranged between the stripping block and the bottom of the upper die, the stripping block forces the elastic piece to be higher than the bottom of the upper die, and during detection, the three detection blocks and the stripping block are used for being in contact with an outer ring of the upper end face of the to-be-detected bearing; the supporting table is located below the upper mold, the middle of the supporting table is of a hollow structure, and the supporting table is driven by a driving air cylinder to ascend and descend; the lower die is positioned below the hollow structure of the supporting table and is used for supporting an inner ring of the bearing to be detected; and the sound detector is mounted on one side of the lower die and is driven by a lateral cylinder. The bearing feeding and discharging device is easy to clamp bearings, simple in structure and convenient for bearing feeding and discharging.

Description

Technical Field

[0001] The utility model relates to the field of bearing sound inspection, in particular to a double-shaft vertical automatic bearing sound inspection machine and a sound inspection device. Background Art

[0002] After the bearing is assembled, it is necessary to detect the sound of the bearing rotation. The rotation sound needs to be within a predetermined range to be considered a qualified product. At present, the sound detection of bearings is carried out by a sound inspection machine. For example, in the utility model patent with the authorization announcement date of April 28, 2023 and the announcement number of CN218937771U, a double-shaft vertical automatic bearing sound inspection machine is disclosed. When this sound inspection machine detects a bearing, a clamping clip is fixed to one side of the mounting plate by a first bolt, and then the air cylinder is started. The air cylinder drives the fixing plate and all the components installed on one side thereof to move to one side, so that the clamping clip clamps against the outer surface of the bearing. At the same time, the friction ring contacts the inner surface of the bearing, thereby increasing the fixation of the clamping disc on the bearing, increasing the clamping force on the bearing during rotation detection, preventing the bearing from slipping, and improving the accuracy of the detection result. However, there will still be a slipping phenomenon when clamping the bearing from the side, and the clamping method is relatively complex. Since the bearing is clamped horizontally, it is not conducive to the loading and unloading of the bearing. Summary of the Utility Model

[0003] To overcome the above disadvantages, the purpose of the utility model is to provide a double-shaft vertical automatic bearing sound inspection machine and a sound inspection device that are easy to clamp the bearing, have a simple structure, and are convenient for loading and unloading the bearing.

[0004] To achieve the above purpose, one of the technical solutions adopted by the utility model is: a double-shaft vertical automatic bearing sound inspection machine, including: an upper mold, which is driven to lift by a driving air cylinder and driven to rotate by an upper mold servo motor. At the bottom of the upper mold, there are a detection block and a blanking block located on the same circumference. There are three detection blocks and they are evenly distributed. An elastic member is arranged between the blanking block and the bottom of the upper mold. The blanking block forces the elastic member to be higher than the bottom of the upper mold. During detection, the three detection blocks and the blanking block are used to contact the outer ring of the upper end surface of the bearing to be detected; a support table, located below the upper mold, is used to support the bearing to be detected. The support table is driven to lift by a driving air cylinder, and the middle part of the support table is a hollow structure; a lower mold, located below the hollow structure of the support table, is used to support the inner ring of the bearing to be detected; a sound detector, installed on one side of the lower mold, and the sound detector can be driven by a lateral air cylinder to move closer to or away from the outer side wall of the bearing to be detected on the support table.

[0005] Preferably, the upper mold is fixed on a slide, and the slide is slidably set on the frame through a longitudinal guide rail. The driving cylinder is fixed at the bottom of the frame with its telescopic shaft facing downward and is connected and fixed to the slide through a buffer spring. The upper mold servo motor is fixed on the slide to drive the upper mold to rotate.

[0006] Preferably, the upper mold is rotatably arranged at the bottom of the slide, a slave synchronous pulley is arranged on the upper mold, a main synchronous pulley is arranged on the output shaft of the upper mold servo motor, and the main synchronous pulley and the slave synchronous pulley are sleeved with synchronous belts meshing therewith.

[0007] Preferably, the support platform is L-shaped, and the plane at the bottom is the support surface. The support platform is fixedly arranged at the bottom of the slide, and the upper mold is located between the slide and the support surface. A test slot and a test through hole are arranged on the support surface, and the test through hole is arranged on the test slot.

[0008] Preferably, an upper limit piece is fixed to the end of the telescopic shaft of the driving cylinder, and a lower limit piece is fixed to the top of the slide, and the upper limit piece corresponds to the lower limit piece in the upper and lower directions. The cooperation of the upper limit piece and the lower limit piece provides the limit.

[0009] Preferably, the upper limit member is a limit cylinder, the telescopic axis of the limit cylinder faces downward and corresponds to the lower limit member in upper and lower directions.

[0010] A sound inspection device comprises the above-mentioned dual-axis vertical automatic bearing sound inspection machine, wherein at least two dual-axis vertical automatic bearing sound inspection machines are provided, and at least two dual-axis vertical automatic bearing sound inspection machines are arranged on a transfer platform, and a clearance groove is provided on the transfer platform corresponding to the dual-axis vertical automatic bearing sound inspection machine, and the support platform is located in the clearance groove, and a transfer plate assembly is provided on the front side of the transfer platform, and the two ends of the transfer platform are connected to a first belt conveyor line and a second belt conveyor line which are respectively perpendicular thereto, and the transfer plate assembly is used to transport the bearing to be inspected on the first belt conveyor line to the transfer platform, to transfer the bearing to be inspected at the previous station on the transfer platform to the next station, and to transfer the bearing to be inspected on the transfer platform to the second belt conveyor line.

[0011] Preferably, the transfer plate assembly includes a lateral translation cylinder, a translation plate, a longitudinal translation cylinder, and a push plate. The lateral translation cylinder is fixed to one side of at least two of the double-axis vertical automatic bearing sound inspection machines. The telescopic shaft of the lateral translation cylinder is connected and fixed to the translation plate, driving the translation plate to move back and forth between the first belt conveyor and the second belt conveyor. The longitudinal translation cylinder is fixed to the translation plate, and its telescopic shaft is connected and fixed to the push plate, driving the push plate to move back and forth in the direction of approaching or departing from the double-axis vertical automatic bearing sound inspection machine. A matching guiding slide rail is provided between the push plate and the translation plate. A plurality of bearing clamping grooves are provided on the side of the push plate facing the double-axis vertical automatic bearing sound inspection machine.

[0012] The beneficial effects of the double-axis vertical automatic bearing sound inspection machine and the sound inspection equipment of the present utility model are as follows:

[0013] First, the method of clamping the bearing to be detected by the upper die and the lower die clamping from top to bottom. Compared with the side clamping of the prior art, the bearing to be detected is less likely to slip. Since the upper and lower clamping method is adopted, the driving cylinder is placed at the top and longitudinally arranged, occupying a small area. The upper die and the lower die are arranged corresponding to each other up and down. The bearing to be detected can be loaded and unloaded by using a line body (such as a transfer platform, a transfer plate assembly), without using a manipulator for clamping, and the cost is relatively low.

[0014] Second, during detection, when the upper die moves downward to the lower die and clamps the bearing to be detected, the three detection blocks and the blanking block of the upper die abut against the upper end face of the outer ring of the bearing to be detected. The lower die drives the inner ring to rotate. After the sound detector detects the noise of the bearing in real time, the driving cylinder drives the upper die to move upward, and the elastic member releases elastic force, forcing the blanking block to move downward. The blanking block gives a downward force to the bearing to be detected, so that the bearing to be detected will not move upward together with the three detection blocks, and it is easy to unload the material;

[0015] Third, for one bearing to be detected in this application, three sound inspections are required. After the first inspection, the upper die needs to rotate 120°. For the second inspection, after the second inspection, the upper die rotates 120° again for the third inspection. Such an operation makes the detected noise of the bearing more accurate and improves the sound inspection quality of the bearing. Description of the Drawings

[0016] Figure 1 It is a three-dimensional view of the first angle at the upper die of the double-axis vertical automatic bearing sound inspection machine of this embodiment;

[0017] Figure 2 It is a three-dimensional view of the second angle at the upper die of the double-axis vertical automatic bearing sound inspection machine of this embodiment;

[0018] Figure 3 It is a three-dimensional view of the upper die of the double-axis vertical automatic bearing sound inspection machine of this embodiment;

[0019] Figure 4 It is a three-dimensional view of the lower mold of the dual-axis vertical automatic bearing sound inspection machine of this embodiment;

[0020] Figure 5 is a three-dimensional diagram of the sound detection device of this embodiment;

[0021] Figure 6 It is a three-dimensional diagram of the coordination of the transfer platform, the transfer plate assembly, the bearing to be tested, the first belt conveyor line, and the second belt conveyor line of this embodiment.

[0022] In the figure:

[0023] 1. Upper mold; 2. Driving cylinder; 3. Upper mold servo motor; 4. Detection block; 5. Stripping block; 6. Support table; 6a. Support surface; 6b. Test slot; 6c. Test through hole; 7. Lower mold; 8. Sound detector; 9. Lateral cylinder; 10. Slide; 11. Longitudinal guide rail; 12. Frame; 13. Buffer spring; 14. Slave synchronous pulley; 15. Main synchronous pulley; 16. Synchronous belt; 17. Upper limit piece; 18. Lower limit piece; 19. Transfer platform; 19a. Make way slot; 20. Transfer plate assembly; 20a. Horizontal translation cylinder; 20b. Translation plate; 20c. Longitudinal translation cylinder; 20d Push plate; 20e. Guide slide rail; 21. First belt conveyor line; 22. Second belt conveyor line; 23. Bearing to be tested. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figures 1-4 As shown, this embodiment discloses a dual-axis vertical automatic bearing sound inspection machine, comprising:

[0026] The upper mold 1 is driven to rise and fall by the driving cylinder 2 and driven to rotate by the upper mold servo motor 3. The bottom of the upper mold 1 is provided with a detection block 4 and a stripping block 5 located on the same circumference. There are three detection blocks 4 and they are evenly distributed. An elastic member is provided between the stripping block 5 and the bottom of the upper mold 1. The stripping block 5 forces the elastic member to be higher than the bottom of the upper mold 1. During detection, the three detection blocks 4 and the stripping block 5 are used to contact the outer ring of the upper end face of the bearing 23 to be detected;

[0027] The support platform 6 is located below the upper mold 1 and is used to support the bearing 23 to be tested. The support platform 6 is driven to rise and fall by the driving cylinder 2, and the middle part of the support platform 6 is a hollow structure;

[0028] The lower die 7 is located below the hollow structure of the support table 6, and the lower die 7 is used to support the inner ring of the bearing 23 to be detected;

[0029] The sound detector 8 is installed on one side of the lower die 7. The sound detector 8 can be driven by the lateral cylinder 9 to move closer to or away from the outer sidewall of the bearing 23 to be detected on the support table 6.

[0030] The upper die 1 and the lower die 7 are used to clamp the bearing 23 to be detected in an up-and-down clamping manner, and it is not easy to slip. The driving cylinder 2 is placed at the top and is longitudinally arranged, occupying a small area. The upper die 1 and the lower die 7 are arranged in an up-and-down corresponding manner. The bearing 23 to be detected can be loaded and unloaded by a wire body such as a transfer platform 19 and a transfer plate assembly 20, without using a manipulator for clamping, and the cost is relatively low.

[0031] During the detection of this embodiment, the upper die 1 moves downward to the lower die 7. After clamping the bearing 23 to be detected, the three detection blocks 4 and the stripping block 5 of the upper die 1 are pressed against the upper end face of the outer ring of the bearing 23 to be detected. The lower die 7 drives the inner ring to rotate. After the sound detector 8 detects the noise of the bearing in real time, the driving cylinder 2 drives the upper die 1 to move upward, and the elastic member releases elastic force, forcing the stripping block 5 to move downward. The stripping block 5 exerts a downward force on the bearing 23 to be detected, so that the bearing 23 to be detected will not move upward together with the three detection blocks 4, which is easy to unload.

[0032] For a bearing 23 to be detected, three sound detections are required in this embodiment. Specifically, after the first sound detection is completed, the upper die 1 moves upward, and the upper die servo motor 3 drives the upper die 1 to rotate 120° around its central axis, and then presses the bearing 23 to be detected again. The sound detector 8 detects the noise of the bearing again. After the second sound detection, the upper die 1 moves upward and resets again. After the upper die 1 rotates 120° around its central axis again, the upper die 1 moves downward and presses the bearing 23 to be detected again. The sound detector 8 detects the noise of the bearing for the third time, making the detected noise of the bearing more accurate and improving the sound detection quality of the bearing.

[0033] In this embodiment, the upper die 1 is fixed on the sliding table 10. The sliding table 10 is slidably arranged on the frame 12 through the longitudinal guide rail 11. The driving cylinder 2 is fixed at the bottom of the frame 12, and its telescopic shaft faces downward and is fixedly connected to the sliding table 10 through the buffer spring 13. The upper die servo motor 3 is fixed on the sliding table 10 to drive the upper die 1 to rotate. The upper die 1 is rotatably arranged at the bottom of the sliding table 10. A driven synchronous pulley 14 is arranged on the upper die 1, and a main synchronous pulley 15 is arranged on the output shaft of the upper die servo motor 3. A synchronous belt 16 meshing with them is sleeved on the main synchronous pulley 15 and the driven synchronous pulley 14. The support table 6 is L-shaped, and the plane at its bottom is the support surface 6a. The support table 6 is fixedly arranged at the bottom of the sliding table 10. The upper die 1 is located between the sliding table 10 and the support surface 6a. A test groove 6b and a test through hole 6c are arranged on the support surface 6a, and the test through hole 6c is arranged on the test groove 6b.

[0034] An upper limit member 17 is fixed at the end of the telescopic shaft of the driving cylinder 2, and a lower limit member 18 is fixed at the top of the sliding table 10. The upper limit member 17 and the lower limit member 18 are vertically corresponding. Among them, the upper limit member 17 is a limit cylinder, and the telescopic shaft of the limit cylinder faces downward and is vertically corresponding to the lower limit member 18.

[0035] As Figure 5 , Figure 6 shown, this embodiment also discloses a sound inspection device, including the above-mentioned double-shaft vertical automatic bearing sound inspection machine. There are at least two double-shaft vertical automatic bearing sound inspection machines. At least two double-shaft vertical automatic bearing sound inspection machines are arranged on the transfer platform 19. A relief groove 19a is arranged on the transfer platform 19 corresponding to the double-shaft vertical automatic bearing sound inspection machine. The support table 6 is located in the relief groove 19a. A transfer plate assembly 20 is arranged on the front side of the transfer platform 19. The two ends of the transfer platform 19 are respectively connected to the first belt conveyor 21 and the second belt conveyor 22 perpendicular to it. The transfer plate assembly 20 is used to convey the bearing 23 to be detected on the first belt conveyor 21 to the transfer platform 19, to transfer the bearing 23 to be detected at the previous station on the transfer platform 19 to the next station, and to transfer the bearing 23 to be detected on the transfer platform 19 to the second belt conveyor 22.

[0036] The transfer plate assembly 20 includes a transverse translation cylinder 20a, a translation plate 20b, a longitudinal translation cylinder 20c and a push plate 20d. The transverse translation cylinder 20a is fixed on one side of at least two dual-axis vertical automatic bearing sound inspection machines. The telescopic shaft of the transverse translation cylinder 20a is connected and fixed to the translation plate 20b, driving the translation plate 20b to move back and forth between the first belt conveyor line 21 and the second belt conveyor line 22. The longitudinal translation cylinder 20c is fixed on the translation plate 20b, and its telescopic shaft is connected and fixed to the push plate 20d, driving the push plate 20d to move back and forth in the direction close to or away from the dual-axis vertical automatic bearing sound inspection machine. A matching guide rail 20e is arranged between the push plate 20d and the translation plate 20b, and a plurality of bearing slots are arranged on the side of the push plate 20d close to the dual-axis vertical automatic bearing sound inspection machine.

[0037] The working principle of the double-axis vertical automatic bearing sound inspection machine is:

[0038] The first belt conveyor line 21 is used to convey the bearing 23 to be tested to the starting end of the transfer platform 19, the second belt conveyor line 22 is used to receive the bearing tested by the transfer platform 19, and the transfer platform 19 is used to convey the bearing 23 to be tested. During the test, the horizontal translation cylinder 20a drives the translation plate 20b to move to the first belt conveyor line 21. After moving to the position, the longitudinal translation cylinder 20c drives the translation plate 20b to move to the bearing 23 to be tested on the first belt conveyor line 21. At this time, the bearing 23 to be tested is located in the bearing slot 20e. The horizontal translation cylinder 20a drives the translation plate 20b to move in the direction of the second belt conveyor line 22. At this time, the bearing 23 to be tested is transferred to the transfer platform 19, and the longitudinal translation cylinder 20c drives the translation plate 20b to move away from the first belt conveyor line 21, reset, and the bearing 23 to be tested is separated from the bearing slot 20e. This cycle is repeated until the bearing 23 to be tested is transferred to the support platform 6 corresponding to the dual-axis vertical automatic bearing sound inspection machine. When the transfer plate assembly 20 transfers the bearing 23 to be inspected to the transfer platform 19, the support platform 6 is at the same height as the transfer platform 19. After the bearing 23 to be inspected is transferred to the support platform 6, the driving cylinder 2 drives the upper mold 1 and the support platform 6 to move downward synchronously. The bearing 23 to be inspected on the support platform 6 first contacts the lower mold 7, and then the upper mold 1 continues to move downward until the bearing 23 to be inspected is pressed, and then the sound inspection is performed.

[0039] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A double-axis vertical automatic bearing sound inspection machine, characterized in that: Including: An upper die (1), which is driven to move up and down by a driving cylinder (2) and rotate by an upper die servo motor (3). At the bottom of the upper die (1), there are a detection block (4) and a blanking block (5) located on the same circumference. There are three detection blocks (4) which are evenly distributed. An elastic member is provided between the blanking block (5) and the bottom of the upper die (1). The blanking block (5) forces the elastic member to be higher than the bottom of the upper die (1). During detection, the three detection blocks (4) and the blanking block (5) are used to contact the outer ring of the upper end face of the bearing (23) to be detected. A support table (6), located below the upper die (1), for supporting the bearing (23) to be detected. The support table (6) is driven to move up and down by a driving cylinder (2). The middle part of the support table (6) is a hollow structure. A lower die (7), located below the hollow structure of the support table (6), and the lower die (7) is used to support the inner ring of the bearing (23) to be detected. An acoustic detector (8), installed on one side of the lower die (7), and the acoustic detector (8) is driven by a lateral cylinder (9) to move closer to or away from the outer side wall of the bearing (23) on the support table (6).

2. The double-shaft vertical automatic bearing sound inspection machine according to claim 1, wherein: The upper die (1) is fixed on a sliding table (10). The sliding table (10) is slidably arranged on a frame (12) through a longitudinal guide rail (11). The driving cylinder (2) is fixed at the bottom of the frame (12), and its telescopic shaft faces downward and is fixedly connected to the sliding table (10) through a buffer spring (13). The upper die servo motor (3) is fixed on the sliding table (10) to drive the upper die (1) to rotate.

3. The double-axis vertical automatic bearing sound inspection machine according to claim 2, wherein: The upper die (1) is rotatably arranged at the bottom of the sliding table (10). A driven synchronous pulley (14) is arranged on the upper die (1). The output shaft of the upper die servo motor (3) is provided with a main synchronous pulley (15). A synchronous belt (16) meshing with them is sleeved on the main synchronous pulley (15) and the driven synchronous pulley (14).

4. The double-shaft vertical automatic bearing sound inspection machine according to claim 3, characterized in that: The support table (6) is in an L shape, and the flat surface at its bottom is a support surface (6a). The support table (6) is fixedly arranged at the bottom of the sliding table (10). The upper die (1) is located between the sliding table (10) and the support surface (6a). A test groove (6b) and a test through hole (6c) are arranged on the support surface (6a). The test through hole (6c) is arranged on the test groove (6b).

5. The double-axis vertical automatic bearing sound inspection machine according to claim 2, wherein: An upper limit member (17) is fixed at the end of the telescopic shaft of the driving cylinder (2). A lower limit member (18) is fixed at the top of the sliding table (10). The upper limit member (17) and the lower limit member (18) are corresponding up and down.

6. The double-axis vertical automatic bearing sound inspection machine according to claim 5, characterized in that: The upper limit member (17) is a limit cylinder, and the telescopic shaft of the limit cylinder faces downward and is corresponding up and down with the lower limit member (18).

7. A voice inspection device, characterized in that: Including the biaxial vertical automatic bearing sound inspection machine according to any one of claims 1-6, at least two biaxial vertical automatic bearing sound inspection machines are provided, and at least two biaxial vertical automatic bearing sound inspection machines are arranged on a transfer platform (19). A relief groove (19a) is provided on the transfer platform (19) corresponding to the biaxial vertical automatic bearing sound inspection machine, and the support table (6) is located in the relief groove (19a). A transfer plate assembly (20) is provided on the front side of the transfer platform (19). The two ends of the transfer platform (19) are respectively connected to a first belt conveyor line (21) and a second belt conveyor line (22) perpendicular to it. The transfer plate assembly (20) is used to convey the bearing to be detected (23) on the first belt conveyor line (21) to the transfer platform (19), to transfer the bearing to be detected (23) at the previous station on the transfer platform (19) to the next station, and to transfer the bearing to be detected (23) on the transfer platform (19) to the second belt conveyor line (22).

8. The sound inspection device according to claim 7, wherein: The transfer plate assembly (20) includes a horizontal translation cylinder (20a), a translation plate (20b), a vertical translation cylinder (20c) and a push plate (20d). The horizontal translation cylinder (20a) is fixed on one side of at least two biaxial vertical automatic bearing sound inspection machines. The telescopic shaft of the horizontal translation cylinder (20a) is fixedly connected to the translation plate (20b) to drive the translation plate (20b) to move back and forth between the first belt conveyor line (21) and the second belt conveyor line (22). The vertical translation cylinder (20c) is fixed on the translation plate (20b), and its telescopic shaft is fixedly connected to the push plate (20d) to drive the push plate (20d) to move back and forth in the direction of approaching or departing from the biaxial vertical automatic bearing sound inspection machine. A matching guide rail (20e) is provided between the push plate (20d) and the translation plate (20b). A plurality of bearing card slots are provided on the side of the push plate (20d) facing the biaxial vertical automatic bearing sound inspection machine.

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