A rear axle detection apparatus

Abstract

The application relates to a rear shaft detection device applied in the water pump production field, which comprises a base, a supporting seat arranged on the base, a workpiece to be detected arranged on the supporting seat, a detection rod corresponding to the rear shaft position of the workpiece to be detected slidably connected to the supporting seat, a detection unit arranged in the supporting seat, the detection unit comprising a detection contact corresponding to the detection rod and a feedback unit connected to the detection contact; when the workpiece to be detected is pressed, the rear shaft in the workpiece to be detected drives the detection rod to press the detection contact, so that the feedback unit is connected and feedback information is output. The application has the technical effect that: the misjudgment caused by insufficient light, visual fatigue and other factors is reduced, the accuracy of the detection result is greatly improved, the detection result is not affected by the subjective judgment of the operator, the labor cost is reduced, time and labor are saved, and the efficiency of the rear shaft detection is improved.

Description

Technical Field

[0001] This application relates to the field of water pump manufacturing technology, and in particular to a rear axle inspection device. Background Technology

[0002] A water pump is a general-purpose mechanical device used to transport or pressurize liquids, playing an important role in industrial production.

[0003] In the water pump manufacturing process, workpieces need to be installed on the water pump. (Refer to...) Figure 1 The workpiece includes a rear axle 17 and a bracket 16. The rear axle 17 includes a main body 19, on which a mounting shaft 20 is fixedly connected. A center hole 18 is formed at the center of the mounting shaft 20. A first mounting groove 21 matching the size of the main body 19 is formed inside the bracket 16. A second mounting groove 22 matching the size of the mounting shaft 20 is formed at the bottom of the first mounting groove 21. During the workpiece assembly process, the operator needs to insert the main body 19 into the first mounting groove 21 and insert the mounting shaft 20 into the second mounting groove 22 to achieve the snap-fit ​​assembly of the rear axle 17. After the workpiece assembly is completed, the operator holds the workpiece and visually inspects the inside of the workpiece bracket 16 to see if the rear axle 17 is installed.

[0004] The above method of having operators visually inspect the workpiece for the presence of the rear shaft is difficult to observe due to the dim lighting inside the support, and manual visual inspection is prone to causing visual fatigue. This method is time-consuming, labor-intensive, and results in low production efficiency. Summary of the Invention

[0005] To address the problems of relying on operators to visually inspect the presence or absence of a rear axle on a workpiece, which is difficult due to dim lighting inside the support and prone to visual fatigue, resulting in low production efficiency, this application provides a rear axle inspection device with the following technical solution: It includes a base with a support seat on it. The workpiece to be inspected is mounted on the support seat. A detection rod corresponding to the rear axle position of the workpiece is slidably connected to the support seat. A detection unit is located within the support seat, including a detection contact corresponding to the detection rod and a feedback unit connected to the detection contact. When the workpiece is pressed down, the rear axle drive detection rod within the workpiece with a rear axle presses against the detection contact, causing the feedback unit to connect and output feedback information.

[0006] In one specific implementation, the base is provided with a mounting bracket, the mounting bracket is provided with a lifting cylinder, the output end of the lifting cylinder is provided with a pressure head corresponding to the workpiece to be tested, and the workpiece to be tested is located between the pressure head and the support base.

[0007] In one specific implementation, the support base has a placement groove on its surface facing the base, a detection seat matching the placement groove is provided in the placement groove, the detection seat has a detection groove on its surface facing away from the base, and the detection contact is connected to the detection groove by a spring.

[0008] In one specific implementation, a reset groove is provided on the surface of the detection seat away from the base, and an elastic element matching the reset groove is provided in the reset groove, the elastic element abutting between the detection rod and the bottom of the reset groove.

[0009] In one specific implementation, the support base is provided with a support shaft that matches the first mounting groove, and the support shaft is inserted into the first mounting groove of the bracket.

[0010] In one specific implementation, the support shaft has a sliding hole that matches the detection rod, the detection rod is slidably connected in the detection hole, and the surface of the detection rod facing the base has a detection ring that matches the placement groove, the detection ring is slidably connected in the placement groove.

[0011] In one specific implementation, the detection contacts are configured as a plurality of contacts, which are evenly distributed along the detection seat.

[0012] In one specific implementation, the support base has a fixing hole, an anti-rotation bolt passes through the fixing hole, the detection rod has a fixing groove that matches the anti-rotation bolt, and the end of the anti-rotation bolt facing the detection rod is threaded into the fixing groove.

[0013] In one specific implementation scheme, the support base is provided with an oil injection hole, the detection rod is provided with an oil injection pipe, the oil inlet end of the oil injection pipe corresponds to the oil injection hole, and the oil outlet of the oil injection pipe corresponds to the center hole of the rear axle.

[0014] In one specific implementation, the output end of the lifting cylinder is provided with a threaded rod, and the surface of the pressure head facing the lifting cylinder is provided with a threaded groove that matches the threaded rod, and the threaded rod is threadedly connected in the threaded groove.

[0015] In summary, this application has the following beneficial technical effects: the workpiece to be tested is placed on the support base. When the workpiece is pressed down by force, the rear axle inside the workpiece with the rear axle drives the detection rod to press the detection contact, causing the feedback unit to connect and output feedback information. The feedback information is used to determine whether the support of the workpiece being tested has a rear axle installed inside. This reduces misjudgments caused by insufficient light, visual fatigue, etc., greatly improves the accuracy of the detection results, is not affected by the subjective judgment of the operator, reduces labor costs, saves time and effort, and improves the efficiency of rear axle detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the workpiece structure in related technologies.

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 3 This is a schematic diagram illustrating the structure of the detection seat in the embodiments of this application.

[0019] Figure 4 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 5 This is a schematic diagram illustrating the structure of the oil injection hole in the embodiments of this application.

[0021] Reference numerals: 1. Base; 2. Support seat; 3. Detection rod; 4. Detection contact; 5. Mounting bracket; 6. Lifting cylinder; 7. Pressure head; 8. Placement slot; 9. Detection seat; 10. Reset slot; 11. Support shaft; 12. Sliding hole; 13. Detection ring; 14. Fixing hole; 15. Oil injection hole; 16. Bracket; 17. Rear shaft; 18. Center hole; 19. Main body; 20. Mounting shaft; 21. First mounting slot; 22. Second mounting slot; Detailed Implementation The following is in conjunction with the appendix Figure 2-5 This application will be described in further detail.

[0022] This application discloses a rear axle inspection device.

[0023] Reference Figure 1 and Figure 2 The rear axle inspection device includes a base 1, a support seat 2 bolted to the base 1, a workpiece to be inspected mounted on the support seat 2, and a detection rod 3 corresponding to the position of the rear axle 17 of the workpiece to be inspected slidably connected to the support seat 2. In this embodiment, the detection rod 3 and the rear axle 17 are on the same straight line in the vertical direction. A detection unit is provided inside the support seat 2. The detection unit includes a detection contact 4 corresponding to the detection rod 3 and a feedback unit connected to the detection contact 4. Multiple detection contacts 4 are provided. In this embodiment, four detection contacts 4 are used as an example for explanation. When the workpiece to be inspected is pressed down, the rear axle 17 inside the workpiece to be inspected drives the detection rod 3 to press the detection contact 4, so that the feedback unit is connected and outputs feedback information.

[0024] Therefore, the workpiece to be inspected is placed on the support base 2. When the workpiece is pressed down, the rear shaft 17 inside the workpiece drives the detection rod 3 to press the detection contact 4, causing the feedback unit to connect and output feedback information. The feedback information is used to determine whether the rear shaft 17 is installed inside the support 16 of the workpiece. The original manual visual observation method is limited by the dim light inside the support 16, making it difficult for operators to clearly and accurately judge whether the rear shaft 17 is installed properly, which is prone to misjudgment. However, the rear shaft 17 detection equipment uses the mechanical contact between the detection rod 3 and the detection contact 4 to detect the presence of the rear shaft 17. As long as the rear shaft 17 can normally drive the detection rod 3 to press the detection contact 4, it can accurately reflect the installation status of the rear shaft 17, reducing misjudgment caused by insufficient light, visual fatigue, etc., greatly improving the accuracy of the detection results, and is not affected by the subjective judgment of the operator, ensuring the consistency and reliability of the detection, reducing labor costs, saving time and effort, greatly shortening the detection time of a single workpiece, and improving the efficiency of rear shaft 17 detection.

[0025] Reference Figure 1 and Figure 2 A mounting bracket 5 is bolted to the base 1. Reinforcing ribs are provided between the mounting bracket 5 and the base 1, enhancing the structural rigidity between them and improving the stability of the mounting bracket 5. A lifting cylinder 6 is mounted on the mounting bracket 5. A pressure head 7 corresponding to the workpiece to be inspected is installed at the output end of the lifting cylinder 6. The workpiece to be inspected is located between the pressure head 7 and the support base 2, and the detection rod 3, the workpiece to be inspected, and the pressure head 7 are vertically aligned on the same straight line. A threaded rod is installed at the output end of the lifting cylinder 6. A threaded groove matching the size of the threaded rod is opened on the surface of the pressure head 7 facing the lifting cylinder 6. The threaded rod is threaded into the threaded groove. The operator can remove the pressure head 7 from the threaded rod using the threaded disassembly method, achieving a detachable connection of the pressure head 7 for easy replacement later. In this embodiment, the pressure head 7 is made of nylon resin material, reducing the possibility of damaging the workpiece when the lifting cylinder 6 drives the pressure head 7 downward.

[0026] Reference Figure 1 and Figure 3The support base 2 has a placement groove 8 on its surface facing the base 1. A detection seat 9, matching the size of the placement groove 8, is placed inside the groove 8. Four detection contacts 4 are evenly distributed along the detection seat 9. In this embodiment, the detection seat 9 is made of insulating material, specifically nylon. A detection groove is formed on the surface of the detection seat 9 facing away from the base 1. The detection contacts 4 can be connected to the detection groove by springs. The detection contacts 4 can also be push-button switches with a self-resetting function. In this embodiment, the feedback unit has two contacts, both located at the two ends of the detection groove. Initially, the detection contacts 4 are suspended above the two contacts under the action of the springs. When the detection rod 3 presses down on the detection contacts 4, the detection contacts 4 simultaneously contact both contacts, making the entire feedback unit connected and outputting feedback information to the external PLC control terminal.

[0027] Reference Figure 2 and Figure 4 A support shaft 11, matching the size of the first mounting groove 21, is fixedly connected to the surface of the support base 2 facing away from the base 1. The support shaft 11 is inserted into the first mounting groove 21 of the bracket 16. The first mounting groove 21 limits the position of the support shaft 11, reducing the possibility of the workpiece bracket 16 shifting position on the support shaft 11 and improving the stability of the workpiece on the support shaft 11. A sliding hole 12, matching the size of the detection rod 3, is opened at the axis of the support shaft 11. The detection rod 3 is slidably connected in the detection hole. The sliding hole 12 guides and limits the position of the detection rod 3, ensuring that the detection rod 3 can only move along the direction of the sliding hole 12, thus improving the stability of the detection rod 3 during displacement. A detection ring 13, matching the size of the placement groove 8, is fixedly connected to the surface of the detection rod 3 facing the base 1. The detection ring 13 is slidably connected in the placement groove 8.

[0028] Reference Figure 2 and Figure 4 A reset groove 10 is provided on the surface of the detection seat 9 away from the base 1. An elastic element matching the size of the reset groove 10 is provided in the reset groove 10. The elastic element is pressed between the detection rod 3 and the bottom of the reset groove 10. In this embodiment, the elastic element can be a compression spring. When there is no external force, the compression spring applies an upward force to the detection ring 13 of the detection rod 3 through elastic compression force, so that the detection rod 3 is kept in the initial position, reducing the possibility that the detection rod 3 will move accidentally and press the detection contact 4 under external interference, reducing the possibility of false triggering feedback caused by the accidental movement of the detection rod 3, and ensuring the accuracy of the detection results.

[0029] Reference Figure 2 and Figure 4The support base 2 has a fixing hole 14, and an anti-rotation bolt passes through the fixing hole 14. The detection rod 3 has a fixing groove that matches the size of the anti-rotation bolt, and the end of the anti-rotation bolt facing the detection rod 3 is threaded into the fixing groove. Therefore, by connecting the anti-rotation bolt to the fixing groove, the circumferential direction of the support base 2 is limited, reducing the possibility of relative rotation between the support base 2 and the detection base 9, and improving the stability of the detection base 9 during the detection process.

[0030] Reference Figure 2 and Figure 4 The support base 2 has an oil injection hole 15, and the detection rod 3 has an oil injection pipe. The oil inlet of the oil injection pipe corresponds to the oil injection hole 15, and the oil outlet of the oil injection pipe corresponds to the center hole 18 of the rear shaft 17. When the feedback information confirms that the rear shaft 17 is installed in the workpiece bracket 16, the oil injection equipment in the relevant technology is started. The pipe of the oil injection equipment passes through the oil injection hole 15 and is connected to the oil injection pipe of the detection rod 3. Lubricating oil is injected into the rear shaft 17 through the oil injection pipe of the detection rod 3, realizing the oil injection operation of the workpiece.

[0031] The implementation principle of this application embodiment is as follows: The workpiece to be tested is placed on the support base 2, and the support shaft 11 is inserted into the first mounting groove 21 of the bracket 16. The lifting cylinder 6 is started, and the pressure head 7 at the output end of the lifting cylinder 6 is driven to press the top of the workpiece bracket 16. If the bracket 16 is equipped with a rear shaft 17, the pressure head 7 presses the workpiece to lower the workpiece position. During the workpiece position descent, the rear shaft 17 inside the bracket 16 presses the detection rod 3, driving the detection rod 3 to move down along the sliding hole 12. The detection rod 3 moves down and presses the detection contact 4. The detection contact 4 moves down and contacts the two contact points, so that the feedback unit is connected to output feedback information of the rear shaft 17 to the control terminal. The control terminal drives the lifting cylinder 6 to lift according to the feedback information, and at the same time starts the oil injection device. The pipe of the oil injection device is passed through the oil injection hole 15 and connected to the oil injection pipe of the detection rod 3. The lubricating oil is injected into the rear shaft 17 through the oil injection pipe of the detection rod 3 to realize the oil injection operation of the workpiece. If the rear shaft 17 is not installed in the bracket 16, when the pressure head 7 presses the workpiece to lower its position, the workpiece bracket 16 is only mounted on the support shaft 11. The end of the detection rod 3 facing away from the base 1 is inserted into the second mounting groove 22 of the bracket 16. At this time, the detection rod 3 is still in the lifted state without the pressure of the rear shaft 17. That is, the end face of the detection ring 13 of the detection rod 3 facing the base 1 does not contact the detection contact 4. The control terminal does not receive feedback information from the rear shaft 17 and issues an alarm. The pressure head 7 keeps pressing the bracket 16 to achieve overall self-locking of the equipment. At this time, the operator needs to reset the rear shaft detection equipment as a whole through the reset button of the control terminal, and then remove the workpiece from the support shaft 11 to assemble the rear shaft 17.

[0032] The original manual visual inspection method was limited by the dim lighting inside the bracket 16, making it difficult for operators to clearly and accurately determine whether the rear axle 17 was installed correctly, which easily led to misjudgments. However, the rear axle 17 detection equipment uses the mechanical contact between the detection rod 3 and the detection contact 4 to detect the presence of the rear axle 17. If the rear axle 17 is installed inside the workpiece bracket 16, it can further improve the stability of the fastening assembly between the rear axle 17 and the bracket 16. At the same time, as long as the rear axle 17 can normally drive the detection rod 3 to press the detection contact 4, it can accurately reflect the installation status of the rear axle 17, reducing misjudgments caused by insufficient light, visual fatigue, etc., greatly improving the accuracy of the detection results, and is not affected by the operator's subjective judgment, ensuring the consistency and reliability of the detection, reducing labor costs, saving time and effort, greatly shortening the detection time of a single workpiece, and improving the efficiency of rear axle 17 detection.

[0033] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A rear axle inspection device, characterized in that: The device includes a base (1) on which a support seat (2) is provided. The workpiece to be tested is mounted on the support seat (2). A detection rod (3) corresponding to the position of the rear shaft (17) of the workpiece to be tested is slidably connected on the support seat (2). A detection unit is provided inside the support seat (2). The detection unit includes a detection contact (4) corresponding to the detection rod (3) and a feedback unit connected to the detection contact (4). When the workpiece to be tested is pressed down, the rear shaft (17) inside the workpiece to be tested drives the detection rod (3) to press the detection contact (4) so ​​that the feedback unit can connect and output feedback information.

2. The rear axle inspection device according to claim 1, characterized in that: The base (1) is provided with a mounting bracket (5), and the mounting bracket (5) is provided with a lifting cylinder (6). The output end of the lifting cylinder (6) is provided with a pressure head (7) corresponding to the workpiece to be tested. The workpiece to be tested is located between the pressure head (7) and the support base (2).

3. The rear axle inspection device according to claim 1, characterized in that: The support base (2) has a placement groove (8) on the surface facing the base (1). The placement groove (8) is provided with a detection seat (9) that matches the placement groove (8). The detection seat (9) has a detection groove on the surface away from the base (1). The detection contact (4) is connected to the detection groove by a spring.

4. The rear axle inspection device according to claim 3, characterized in that: The detection seat (9) has a reset groove (10) on the surface away from the base (1). The reset groove (10) is provided with an elastic element that matches the reset groove (10). The elastic element is pressed between the detection rod (3) and the bottom of the reset groove (10).

5. The rear axle inspection device according to claim 3, characterized in that: The support base (2) is provided with a support shaft (11) that matches the first mounting groove (21), and the support shaft (11) is inserted into the first mounting groove (21) of the bracket (16).

6. The rear axle inspection device according to claim 5, characterized in that: The support shaft (11) is provided with a sliding hole (12) that matches the detection rod (3). The detection rod (3) is slidably connected in the detection hole. The surface of the detection rod (3) facing the base (1) is provided with a detection ring (13) that matches the placement groove (8). The detection ring (13) is slidably connected in the placement groove (8).

7. The rear axle inspection device according to claim 3, characterized in that: The detection contacts (4) are configured as a plurality of each other, and the plurality of detection contacts (4) are evenly distributed along the detection seat (9).

8. The rear axle inspection device according to claim 1, characterized in that: The support base (2) has a fixing hole (14) and an anti-rotation bolt passes through the fixing hole (14). The detection rod (3) has a fixing groove that matches the anti-rotation bolt. The end of the anti-rotation bolt facing the detection rod (3) is threaded into the fixing groove.

9. The rear axle inspection device according to claim 1, characterized in that: The support base (2) is provided with an oil injection hole (15), and the detection rod (3) is provided with an oil injection pipe. The oil inlet end of the oil injection pipe corresponds to the oil injection hole (15), and the oil outlet of the oil injection pipe corresponds to the center hole (18) of the rear axle (17).

10. The rear axle inspection device according to claim 2, characterized in that: The output end of the lifting cylinder (6) is provided with a threaded rod, and the pressure head (7) has a threaded groove on its surface facing the lifting cylinder (6) that matches the threaded rod. The threaded rod is threadedly connected in the threaded groove.

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