Shaft end pin hole alignment device and alignment mechanism
By designing a shaft end pin hole alignment device including a base, a rotating shaft, a driving unit and a alignment sensor, the problem of difficulty in alignment of the end face of the camshaft is solved, automatic alignment and positioning are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202421499209.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the prior art, the alignment of the end face pin holes of the camshaft is difficult, which makes manual placement intensive and time-consuming, and cannot effectively cooperate with the robot on the production line, resulting in low production efficiency.
A shaft end pin hole alignment device is designed, including a base, two rotating shafts, a driving unit and a alignment sensor. By setting the two rotation axes in parallel, the drive unit drives the rotation axes to rotate, and a correcting sensor is placed at the end of the workpiece, and the coordination between the sensor and the drive unit is used to achieve automatic alignment and positioning.
Through the automated alignment and positioning process, production efficiency is improved, the time and energy of manual operation is reduced, and it is effective in cooperation with the robot on the production line to realize automated workpiece processing.
Smart Images
Figure CN222903282U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shaft processing, and in particular relates to a shaft end pin hole alignment device and an alignment mechanism. Background Art
[0002] The camshaft is a component in a piston engine. Its function is to control the opening and closing of the valves. Usually, its speed is still very high, and it needs to withstand a large torque. Therefore, the design of the camshaft has very high requirements in terms of strength and support. The camshaft design occupies a very important position in the design process of the engine.
[0003] At present, when processing the pin hole on the end face of the camshaft, it is necessary to insert the locating pin in the head frame into the pin hole on the end face of the camshaft. This process often requires manual workpiece removal from the loading rack. After placing it on the head frame, the camshaft needs to be rotated to align the pin hole on its end face with the locating pin on the head frame, so as to facilitate the insertion of the locating pin into the pin hole on the end face of the camshaft for processing. However, this manual placement process is usually laborious, and the manual alignment time is long, time-consuming and labor-intensive, and it cannot form effective cooperation with the robot on the production line, resulting in low overall production efficiency. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a shaft end pin hole alignment device and an alignment mechanism, which are used to solve the problem of difficulty in aligning the camshaft end face pin holes.
[0005] On the one hand, the technical solution of the utility model to solve the above technical problems is as follows: a shaft end pin hole alignment device, comprising:
[0006] Base;
[0007] Two rotating shafts, the two rotating shafts are rotatably arranged on the base through a plurality of bearing seats arranged in sequence at intervals, and the two rotating shafts are arranged in parallel and at intervals for supporting the workpiece;
[0008] A driving unit, whose output end is connected to an end of the rotating shaft, and is used to drive the rotating shaft to rotate;
[0009] The alignment sensor is installed between the two rotating shafts. The end of the alignment sensor is arranged opposite to the end of the workpiece placed on the two rotating shafts, and is used to detect the pin hole at the end of the workpiece.
[0010] Compared with the prior art, the above technical solution has the following beneficial effects:
[0011] Two rotating shafts are set in parallel to support the camshaft workpiece. One of the rotating shafts is driven to rotate by a driving unit, and then an alignment sensor is placed at the end of the workpiece. By cooperating with the sensor and the driving unit, when the alignment sensor detects the pin hole, the driving unit stops rotating and then cooperates with the robot on the production line to grab the workpiece and place it on the subsequent processing station. There is no need for manual alignment at the processing station, thereby improving production efficiency.
[0012] Based on the above technical solution, the embodiment of the present application can also be improved as follows:
[0013] In one embodiment, a water receiving box is further included, which is installed at the bottom of the base. The top of the water receiving box is open, and a water drop gap is formed between the water receiving box and at least one side of the outer periphery of the base.
[0014] In one embodiment, two limiting end plates are further included, the two limiting end plates are fixed on the base and are located between the two rotating shafts, and the two limiting end plates are respectively used to limit at two ends of the workpiece.
[0015] In one embodiment, it further includes a sensor bracket arranged on the outer side of the limit end plate, the alignment sensor is installed on the sensor bracket, and the end of the alignment sensor passes through the limit end plate and is opposite to the end of the workpiece.
[0016] In one embodiment, the inner side surface of the limiting end plate is provided with a chamfered surface inclined toward the outside.
[0017] On the other hand, the present embodiment further discloses a shaft end pin hole alignment mechanism, which comprises: the alignment device mentioned above;
[0018] A truss, wherein a slide rail is provided on the truss;
[0019] A manipulator, slidably connected to the slide rail, for grabbing or placing a workpiece on the alignment device;
[0020] The anti-fall frame is connected to one side of the truss and is located at the bottom of the clamping claw of the manipulator. The alignment device is installed at the bottom of the anti-fall frame.
[0021] In one embodiment, a positioning sensor is installed on the truss above the alignment device for locating the position of the manipulator above the alignment device.
[0022] In one embodiment, the anti-fall frame comprises:
[0023] An anti-falling bottom plate is fixed on the truss through a plurality of anti-falling connecting rods, and a plurality of operation openings are provided at intervals on the bottom of the anti-falling bottom plate for the manipulator to pass through;
[0024] A protective net is arranged around the outer periphery of the anti-fall bottom plate.
[0025] In one embodiment, a maintenance component corresponding to the operation port is provided at the bottom of the anti-fall frame, and the maintenance component includes:
[0026] A guide rail is installed at the bottom of the anti-fall frame;
[0027] An inspection door, slidably connected to the guide rail, the inspection door being used to close the operation opening when located at the first end of the guide rail, and being used to expose the operation opening when located at the second end of the guide rail;
[0028] An inspection door sensor is disposed at the second end of the guide rail and is used to sense the inspection door located at the second end of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the utility model.
[0031] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective.
[0032] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the present utility model.
[0033] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective.
[0034] Reference numerals:
[0035] 1. Base; 2. Rotating shaft; 3. Driving wheel; 4. Bearing seat; 5. Driving unit; 6. Alignment sensor;
[0036] 7. Water collection box; 8. Water drop gap; 9. Water outlet hole;
[0037] 10. Limiting end plate;
[0038] 11. Sensor bracket;
[0039] 12. Truss; 13. Slide rail; 14. Manipulator; 15. Anti-fall frame;
[0040] 17. Anti-fall bottom plate; 18. Operation port; 19. Protection net;
[0041] 20. Repair components;
[0042] 21. Guide rail; 22. Inspection door; 23. Inspection door sensor;
[0043] 24. Loading rack. DETAILED DESCRIPTION
[0044] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0045] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0046] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0047] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.
[0048] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0049] Example 1
[0050] like Figure 1-2 As shown, the utility model provides a shaft end pin hole alignment device, which includes: a base, two rotating shafts, a driving unit and an alignment sensor.
[0051] The two rotating shafts are rotatably arranged on the base through a number of bearing seats arranged in sequence at intervals. The two rotating shafts are arranged in parallel and at intervals for supporting workpieces. Driving wheels for contacting the circumferential surfaces of the rotating shafts are arranged at intervals on the two rotating shafts. The driving wheels can be made of polyurethane, etc., for increasing the friction with the rotating shafts to ensure accurate positioning; the driving unit can be implemented by a driving motor, and the output end of the driving unit is connected to the end of one of the rotating shafts for driving the rotating shaft to rotate. The other rotating shaft acts as a driven shaft, and the two rotating shafts cooperate to drive the camshaft to rotate.
[0052] The alignment sensor is installed between the two rotating shafts. The end of the alignment sensor is arranged opposite to the end of the workpiece placed on the two rotating shafts, and is used to detect the pin hole at the end of the workpiece. The alignment sensor cooperates with the driving unit. When the alignment sensor detects the pin hole, the driving motor stops and the camshaft also stops. The camshaft positioning is completed, and then the external manipulator grabs and puts the positioned camshaft pin hole into the equipment head frame pin. The equipment will drive the camshaft to rotate and position.
[0053] Two rotating shafts are set in parallel to support the camshaft workpiece. One of the rotating shafts is driven to rotate by a driving unit, and then an alignment sensor is placed at the end of the workpiece. By cooperating with the sensor and the driving unit, when the alignment sensor detects the pin hole, the driving unit stops rotating, and then cooperates with the robot on the production line to grab the workpiece and place it on the subsequent processing station. There is no need for manual alignment at the processing station, which improves production efficiency. The end face positioning achieved by this device is very practical.
[0054] In this embodiment, a water receiving box is further included. The water receiving box is installed at the bottom of the base. The top of the water receiving box is open, and a water drop gap is formed between the water receiving box and at least one side of the outer periphery of the base. Specifically, the water drop gap is formed on both sides of the base. Both ends of the water receiving box are fixedly connected to the base to hold oil dripping from the workpiece.
[0055] A water outlet hole may be opened at the bottom of the water collecting box, and the water outlet hole is connected to the outside through a pipeline, so as to collect and discharge the oil in the water collecting box to a target location to avoid dripping on the ground.
[0056] In order to ensure that the rotating shaft moves axially during the rotation process, which causes the alignment sensor to be out of close contact with the alignment sensor and affects the operation of the alignment sensor, two limit end plates are provided in the present embodiment. The two limit end plates are fixed on the base and are located between the two rotating shafts. The two limit end plates are respectively used to limit at the two ends of the workpiece. The two limit end plates limit the two ends of the workpiece, ensuring that the alignment sensor is always at an appropriate distance from the end of the workpiece.
[0057] Specifically, the inner side surface of the limiting end plate is provided with a chamfered surface inclined outwardly, and the inner chamfered surface can prevent the end of the workpiece from colliding with the limiting end when the workpiece is placed on the two rotating axes, thereby preventing damage to the workpiece.
[0058] In order to ensure stable installation of the alignment sensor, a sensor bracket is also included which is arranged outside the limit end plate. The alignment sensor is installed on the sensor bracket. The end of the alignment sensor passes through the limit end plate and is opposite to the end of the workpiece.
[0059] Example 2
[0060] like Figure 1-4 As shown, this embodiment also discloses a shaft end pin hole alignment mechanism, which includes the alignment device of embodiment 1, a truss, a manipulator and an anti-fall frame.
[0061] A slide rail is provided on the truss, and a loading rack is provided at the bottom of the truss. A plurality of workpieces are placed on the loading rack. A manipulator is slidably connected to the slide rail and is used to grab or place the workpiece on the alignment device. Specifically, the manipulator grabs the workpiece on the loading rack and places it on the alignment device, and then grabs the workpiece on the alignment device and places it on the head rack of the subsequent process to facilitate the alignment of the pin holes.
[0062] The anti-drop frame is connected to one side of the truss and is located at the bottom of the gripper of the manipulator. The alignment device is installed at the bottom of the anti-drop frame. The setting of the anti-drop frame prevents the grasped workpiece from falling to the ground and injuring the operator below when the manipulator moves on the slide rail. An operating port is provided on the anti-drop frame at the corresponding workstation below.
[0063] Specifically, the anti-fall frame includes: an anti-fall bottom plate and a protective net.
[0064] The anti-falling base plate is fixed on the truss through a plurality of anti-falling connecting rods. A plurality of operating openings are provided at intervals on the bottom of the anti-falling base plate for the convenience of the manipulator to pass through. The manipulator reaches into the loading rack below through the operating opening to grab the workpiece. The manipulator can also reach into the alignment device below the anti-falling frame through the operating opening to put in or take out the workpiece. Other positions are protected by the anti-falling base plate to prevent the workpiece from falling. A protective net is arranged around the outer periphery of the anti-falling base plate so that the anti-falling frame forms a structure with an open top.
[0065] A positioning sensor is installed on the truss above the alignment device, which is used to locate the position of the manipulator above the alignment device. When the manipulator moves to the positioning sensor, it stops sliding, and the manipulator extends to send the workpiece onto the rotating shaft in the alignment device below. This position is also exactly between the two limit end plates.
[0066] In this embodiment, an inspection component corresponding to the operation port is arranged at the bottom of the anti-fall frame, and the inspection component includes: a guide rail, an inspection door and an inspection door sensor.
[0067] A guide rail is installed at the bottom of the anti-fall frame, one end of the guide rail extends to both sides of the operating port, and the other end extends away from the operating port. The inspection door is slidably connected to the guide rail. When the inspection door is located at the first end of the guide rail, it is used to close the operating port. When the inspection door is located at the second end of the guide rail, it is used to expose the operating port.
[0068] The inspection door sensor is arranged at the second end of the guide rail, and is used to sense the inspection door located at the second end of the guide rail. When the inspection door is located at the second end of the guide rail, the inspection door sensor receives a signal and determines that the inspection door is in place and does not block the operating port. The manipulator on the truss can come down through the operating port to retrieve materials. If it is not in place, it cannot come down to retrieve materials.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A shaft end pin hole alignment device, characterized in that: include: Base; Two rotating shafts, the two rotating shafts are rotatably arranged on the base through a plurality of bearing seats arranged in sequence at intervals, and the two rotating shafts are arranged in parallel and at intervals for supporting the workpiece; A driving unit, whose output end is connected to an end of the rotating shaft, and is used to drive the rotating shaft to rotate; The alignment sensor is installed between the two rotating shafts. The end of the alignment sensor is arranged opposite to the end of the workpiece placed on the two rotating shafts, and is used to detect the pin hole at the end of the workpiece.
2. The alignment device according to claim 1, characterized in that: It also includes a water receiving box installed at the bottom of the base. The top of the water receiving box is open, and a water drop gap is formed between the water receiving box and at least one side of the outer periphery of the base.
3. The alignment device according to claim 1, characterized in that: It also includes two limiting end plates, which are fixed on the base and located between the two rotating shafts. The two limiting end plates are respectively used for limiting at two ends of the workpiece.
4. The alignment device according to claim 3, characterized in that: It also includes a sensor bracket arranged on the outer side of the limit end plate, the alignment sensor is installed on the sensor bracket, and the end of the alignment sensor passes through the limit end plate and is opposite to the end of the workpiece.
5. The alignment device according to claim 3, characterized in that: The inner side surface of the limiting end plate is provided with an oblique cut surface inclined toward the outside.
6. A shaft end pin hole alignment mechanism, characterized in that: include: The alignment device as claimed in any one of claims 1 to 5; A truss, wherein a slide rail is provided on the truss; A manipulator, slidably connected to the slide rail, for grabbing or placing a workpiece on the alignment device; The anti-fall frame is connected to one side of the truss and is located at the bottom of the clamping claw of the manipulator. The alignment device is installed at the bottom of the anti-fall frame.
7. The alignment mechanism according to claim 6, characterized in that: A positioning sensor is installed on the truss above the alignment device, which is used to locate the position of the manipulator above the alignment device.
8. The alignment mechanism according to claim 6, characterized in that: The anti-fall frame comprises: An anti-falling bottom plate is fixed on the truss through a plurality of anti-falling connecting rods, and a plurality of operation openings are provided at intervals on the bottom of the anti-falling bottom plate for the manipulator to pass through; A protective net is arranged around the outer periphery of the anti-fall bottom plate.
9. The alignment mechanism according to claim 8, characterized in that: The bottom of the anti-fall frame is provided with an inspection component corresponding to the operation port, and the inspection component includes: A guide rail is installed at the bottom of the anti-fall frame; An inspection door, slidably connected to the guide rail, the inspection door being used to close the operation opening when located at the first end of the guide rail, and being used to expose the operation opening when located at the second end of the guide rail; An inspection door sensor is disposed at the second end of the guide rail and is used to sense the inspection door located at the second end of the guide rail.