A crankshaft rapid detection tool and a crankshaft production system
By designing a rapid crankshaft inspection fixture, the operation process is simplified, and automated inspection is achieved. This solves the problems of complexity and low efficiency in existing crankshaft inspection technologies, improves inspection efficiency and accuracy, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRICHEFEI
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-23
AI Technical Summary
Existing crankshaft inspection methods are complex to operate, require professional personnel, are slow to operate, and are difficult to obtain results in a short time, especially for small crankshafts where sampling is difficult.
Design a crankshaft rapid inspection fixture, including a base, an inspection seat, and a mounting seat. Through a simple mounting position and inspection groove structure, the operator can quickly fix the crankshaft and push the mounting seat for inspection. Combined with a slide, slider, guide rail, and drive device, it realizes automated movement, reducing the difficulty of inspection and improving efficiency.
Testing can be completed without professional skills training, significantly improving testing efficiency, reducing costs, adapting to the testing needs of various crankshaft specifications, and ensuring the accuracy and reliability of test results.
Smart Images
Figure CN224398512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crankshaft production equipment technology, and in particular to a crankshaft rapid testing fixture and crankshaft production system. Background Technology
[0002] Air conditioner crankshafts are the main rotating components of the motor drive system and are generally made of polyoxymethylene (POM). These crankshafts have two important parts: the shaft bore and the shaft itself. During use, the shaft bore is mounted on the motor, and the shaft connects to the air guide plate, forming a typical rotary transmission mechanism. After crankshaft production, key dimensions need to be inspected to determine if they meet design requirements, ensuring that qualified crankshafts are used in air conditioners to guarantee performance. Current crankshaft inspection typically uses tools such as pin gauges and vernier calipers to measure dimensions like the inner and outer diameters and length. However, some special dimensions of the crankshaft, such as the shaft and shaft bore angles, cannot be measured by pin gauges and calipers. These shaft and shaft bore angles are critical control points for the crankshaft and play a vital role in the closure of the air guide plate.
[0003] Therefore, some manufacturers use coordinate measuring machines (CMMs) to inspect the crankshaft's shaft and bore angles. However, using a CMM requires clamping the crankshaft onto a special fixture, adjusting the angles to take measurements, and then using a computer to analyze the data to determine the angles of the two surfaces. This inspection method is complex, requires specialized personnel, and is slow and inefficient, making it difficult to obtain results quickly. Furthermore, for some small crankshafts, taking measurements can be difficult or even impossible.
[0004] Therefore, it is necessary to improve the testing method for air conditioning crankshafts to overcome the shortcomings of existing technologies. Utility Model Content
[0005] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a crankshaft rapid inspection fixture. This fixture is easy to operate, can reduce the difficulty of crankshaft inspection, improve the inspection efficiency of crankshaft, and thus reduce the manufacturing cost of crankshaft.
[0006] A crankshaft rapid inspection fixture, comprising:
[0007] A base, on which a detection seat and a mounting seat that can move relative to each other are provided, the detection seat being disposed on one side of the mounting seat;
[0008] The mounting base is provided with a mounting position for fixing the crankshaft, and the testing base is provided with a testing groove that is adapted to the crankshaft's rotation axis.
[0009] In actual use, the structure of the mounting position and the inspection groove of this testing fixture is designed according to the crankshaft to be tested, so that the crankshaft can be stably clamped and fixed on the mounting base. The internal contour of the inspection groove is perfectly matched with the shape of the crankshaft's rotating shaft, and the angle of the inspection base is designed according to the crankshaft's rotating shaft angle standard.
[0010] During testing, after the crankshaft is installed in the mounting base, the operator pushes the mounting base to move it along a pre-set track on the base towards the testing seat. If the crankshaft shaft can be smoothly inserted into the testing slot without significant jamming or excessive clearance during insertion, the crankshaft's shaft size and shape can be determined to meet the requirements. Conversely, if the shaft cannot be inserted into the testing slot or exhibits significant wobbling after insertion, it indicates that the crankshaft has dimensional deviations or shape defects. To improve testing efficiency, operators can prepare multiple crankshafts to be tested simultaneously. While one crankshaft is being tested, another crankshaft can be pre-installed on multiple interchangeable mounting bases, enabling continuous testing and significantly shortening the overall testing time. Traditional crankshaft testing methods, such as those using a coordinate measuring machine, require specialized personnel to perform complex clamping, adjustment, and sampling operations. However, the tooling claimed in this application, with its simple mounting position and testing slot design, allows operators to complete the testing simply by placing the crankshaft in the mounting position and pushing the mounting base, eliminating the need for specialized skills training, greatly reducing testing difficulty, and improving testing efficiency.
[0011] In a preferred embodiment of this utility model, a sliding groove is provided on the base, and a slider is provided at the bottom of the mounting base, the slider slidingly engaging with the sliding groove;
[0012] The detection seat is detachably mounted at one end of the slide groove.
[0013] The sliding fit design between the slider and the groove allows for smooth and easy movement of the mounting base. Operators do not need to exert excessive force to push the mounting base and can precisely control its position, ensuring accurate alignment of the crankshaft with the testing slot on the testing base. The testing base is detachably mounted at one end of the groove. When the factory needs to test different crankshaft models, only a suitable testing base needs to be replaced. For example, if the factory adds a new crankshaft model with different dimensions and shape than previous products, the original testing base can be removed and replaced with one designed for the new crankshaft model to continue testing without the need to purchase a new testing equipment. This not only saves on equipment procurement costs but also improves the versatility of the tooling, enabling it to adapt to the testing needs of various crankshaft specifications.
[0014] In a preferred embodiment of this invention, a locking block is provided at the top of the slider, and a locking groove is provided at the bottom of the mounting base. The locking block is adapted to the locking groove, and the mounting base is engaged with the slider through the cooperation of the locking block and the locking groove.
[0015] The snap-fit design, where the locking block and slot match, makes the installation of the mounting base simple and quick. A simple alignment and pressing action is all it takes to connect the mounting base to the slider, significantly saving installation time and improving the assembly efficiency of the testing fixture. Furthermore, when the mounting base wears out or becomes damaged during long-term use, or when a different type of mounting base is needed to accommodate different crankshaft specifications, the snap-fit structure makes disassembly of the mounting base easy and convenient. Operators can quickly remove damaged or unsuitable mounting bases from the slider and replace them with new ones, without the need for complex disassembly and reassembly of the entire fixture. This reduces maintenance costs and repair time, and improves the maintainability of the fixture.
[0016] In a preferred embodiment of this utility model, a guide rail is provided on the base, a slider is provided on the guide rail, and the mounting base is detachably mounted on the slider.
[0017] The detection seat is detachably mounted at one end of the guide rail.
[0018] The cooperation between the guide rail and the slider provides stable guidance for the movement of the mounting base. During the testing process, the mounting base can move precisely along the guide rail, ensuring that the crankshaft's rotation axis is accurately aligned with the testing slot of the testing base, avoiding testing errors caused by deviations in the mounting base's movement. Simultaneously, the mounting base is securely mounted on the slider, and the testing base is fixed to one end of the guide rail, reducing interference from external factors on the testing process and improving the accuracy and reliability of the testing results.
[0019] In a preferred embodiment of this invention, a first driving device is provided on the base, and the output end of the first driving device is fixedly connected to the mounting base. The first driving device drives the mounting base to move, causing the mounting base to move closer to or further away from the detection base.
[0020] The application of the first drive unit enables automated movement of the mounting base, significantly shortening the inspection cycle compared to manual pushing. When manually pushing the mounting base, it is difficult to maintain consistent speed and force for each operation, and time is required for positioning and adjustment; while the electric linear cylinder can drive the mounting base to move quickly and accurately, greatly reducing the inspection time for each crankshaft and helping to further improve inspection efficiency.
[0021] In a preferred embodiment of this utility model, both the mounting base and the detection base are slidably disposed on the base, and a second driving device is disposed between the mounting base and the detection base; the second driving device is provided with two connection output terminals, which are respectively connected to the mounting base and the detection base;
[0022] The second driving device drives the mounting base and the detection base to move away from or closer to each other.
[0023] The second drive unit simultaneously drives both the mounting base and the detection base, ensuring their relative positional accuracy during movement. Furthermore, the mounting base and the detection base move simultaneously towards or away from each other, significantly reducing the overall inspection time compared to inspection methods where only one of the mounting base or the detection base moves in one direction.
[0024] In a preferred embodiment of this invention, a mounting shaft is provided on the side of the mounting base near the detection base, and the mounting shaft is adapted to the shaft hole of the crankshaft. Specifically, the mounting shaft includes a shaft body and a shaft end, the outer diameter of the shaft end is smaller than the outer diameter of the shaft body, and the shaft body is adapted to the shaft hole of the crankshaft.
[0025] In a preferred embodiment of this invention, the mounting base is provided with a connecting post, one end of the mounting shaft is provided with a connecting hole, and the connecting post is threadedly connected to the connecting hole.
[0026] The fitting design between the mounting shaft and the crankshaft bore ensures stable crankshaft installation during testing. This tight fit prevents measurement errors caused by crankshaft movement during testing, improving the accuracy of the results. The mounting shaft and mounting base are connected by threads, facilitating shaft replacement. When the mounting shaft wears or needs to test different crankshaft models, it can be quickly replaced, reducing tooling maintenance costs and time. Furthermore, this design allows the tooling to adapt to various crankshaft testing needs by replacing mounting shafts of different specifications, increasing its versatility and reducing the cost for companies to purchase multiple testing equipment for different crankshaft models.
[0027] In a preferred embodiment of this invention, the detection seat and the base are integrally formed, and the detection groove is disposed on the side of the detection seat near the mounting base.
[0028] The one-piece molded base and testing seat can reduce the production cost of this tooling, and the structure is stable and durable.
[0029] This application also provides a crankshaft production system, which includes a forming mechanism and a crankshaft rapid inspection fixture as described above.
[0030] The beneficial effects of this utility model are as follows:
[0031] This utility model provides a rapid crankshaft inspection fixture, which includes a base, on which a movable inspection seat and a mounting seat are mounted, with the inspection seat positioned on one side of the mounting seat. The mounting seat has a mounting position for fixing the crankshaft, and the inspection seat has an inspection groove adapted to the crankshaft's rotation axis. In practical use, the structure of the mounting position and inspection groove is designed according to the crankshaft to be inspected, ensuring the crankshaft is stably clamped and fixed to the mounting seat. The internal contour of the inspection groove perfectly matches the shape of the crankshaft's rotation axis, and the angle of the inspection seat is designed according to the crankshaft's rotation axis angle standard. During inspection, after the crankshaft is installed on the mounting seat, the operator pushes the mounting seat, moving it along a pre-set track on the base towards the inspection seat. If the crankshaft shaft can be smoothly inserted into the inspection slot without significant jamming or excessive clearance during insertion, then the crankshaft's shaft size and shape can be determined to meet the requirements. Conversely, if the shaft cannot be inserted into the inspection slot or exhibits significant wobbling after insertion, it indicates that the crankshaft has dimensional deviations or shape defects. This fixture design allows operators to complete the inspection simply by placing the crankshaft in the mounting position and pushing the mounting base, requiring no specialized skills training and greatly reducing the difficulty of inspection. Compared to traditional inspection methods, it avoids complex adjustment and sampling processes, saving considerable time, significantly improving inspection efficiency, and effectively reducing the manufacturing cost of the crankshaft.
[0032] This application also provides a crankshaft production system that implements the aforementioned crankshaft rapid inspection tooling. After the crankshaft is formed, the production system uses the aforementioned crankshaft rapid inspection tooling to quickly inspect the crankshaft, thereby preventing unqualified crankshafts from entering subsequent production stages and reducing material waste and processing costs caused by scrap. Attached Figure Description
[0033] Figure 1 This is a perspective view of the crankshaft rapid inspection fixture provided in an embodiment of this utility model;
[0034] Figure 2 yes Figure 1 The main view;
[0035] Figure 3 yes Figure 1 Side view;
[0036] Figure 4 This is an exploded view of the rapid inspection fixture provided in an embodiment of this utility model, excluding the crankshaft.
[0037] Figure 5 This is an exploded view of the rapid inspection fixture including the crankshaft provided in an embodiment of this utility model;
[0038] Figure 6This is a front view of the rapid inspection fixture including the crankshaft provided in an embodiment of this utility model;
[0039] Figure 7 This is a schematic diagram of the rapid testing fixture provided in the embodiments of this utility model when testing a crankshaft;
[0040] Figure 8 This is a top view of a rapid detection fixture with a guide rail provided on a base, as provided in an embodiment of this utility model.
[0041] Figure 9 This is a top view of a rapid detection fixture provided in an embodiment of the present invention, which has a guide rail and a second driving device on its base.
[0042] Figure label:
[0043] 1. Base; 11. Slide groove; 12. Guide rail; 2. Mounting seat; 21. Mounting shaft; 22. Slider; 3. Detection seat; 31. Detection groove; 4. Crankshaft; 5. Second drive device. Detailed Implementation
[0044] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0045] In existing technologies, some manufacturers use coordinate measuring machines (CMMs) to inspect the crankshaft's shaft and bore angles. However, using a CMM requires clamping the crankshaft onto a specialized fixture, adjusting the angles to take measurements, and then analyzing the data via computer to determine the angles of the two surfaces. This inspection method is complex, requires specialized personnel, and is slow and inefficient, making it difficult to obtain results quickly. Furthermore, for some small crankshafts, taking measurements can be difficult or even impossible.
[0046] Based on this, this application provides a crankshaft rapid inspection tool.
[0047] Example 1
[0048] like Figures 1-8 As shown, this embodiment provides a crankshaft rapid inspection fixture, comprising:
[0049] A base 1, on which a detection seat 3 and a mounting seat 2 that are capable of moving relative to each other are provided, the detection seat 3 being disposed on one side of the mounting seat 2;
[0050] The mounting base 2 is provided with a mounting position for fixing the crankshaft 4, and the detection base 3 is provided with a detection groove 31, which is adapted to the rotating shaft of the crankshaft 4.
[0051] Specifically, the base 1 of the tooling can be made of aluminum alloy, and the detection seat 3 and the mounting seat 2 can be made of plastic or aluminum alloy. In one embodiment, the detection seat 3 is integrally formed with the base 1, and the detection groove 31 is disposed on the side of the detection seat 3 near the mounting seat 2.
[0052] The one-piece molded base 1 and detection seat 3 can reduce the production cost of the tooling, and the structure is stable and durable.
[0053] In use, place the base 1 stably on the testing workbench. Before testing begins, the operator removes the crankshaft 4 to be tested from the production line. The crankshaft 4 is carefully placed in the mounting position of the mounting seat 2. The mounting position is designed with a positioning structure that matches the shape of the crankshaft 4's shaft hole, and the crankshaft 4 is firmly fixed to the mounting seat 2 by mechanical engagement. After installing the crankshaft 4, the operator pushes the mounting seat 2, moving it along the preset track on the base 1 towards the testing seat 3. The track uses a high-precision linear guide 12, ensuring the smoothness and accuracy of the mounting seat 2's movement. When the mounting seat 2 moves to the vicinity of the testing seat 3, the crankshaft 4's shaft is precisely aligned with the testing groove 31 on the testing seat 3.
[0054] The internal contour of the detection groove 31 is perfectly matched with the shape of the crankshaft 4, and the angle of the detection seat is designed according to the angle design standard of the crankshaft 4.
[0055] If the crankshaft 4 can be smoothly inserted into the inspection slot 31 without significant jamming or excessive clearance during insertion, then the crankshaft 4's dimensions and shape can be determined to meet the requirements. Conversely, if the crankshaft cannot be inserted into the inspection slot 31 or there is significant wobbling after insertion, it indicates that the crankshaft 4 has dimensional deviations or shape defects. For example, for a specific model of crankshaft 4, the standard diameter is 20mm, and the diameter tolerance of the inspection slot 31 is controlled within ±0.05mm. If the crankshaft 4 can be smoothly inserted into the inspection slot 31 without significant jamming or excessive clearance during insertion, then the crankshaft 4's dimensions and shape (angle of the crankshaft) can be preliminarily determined to meet the requirements. Conversely, if the crankshaft cannot be inserted into the inspection slot 31 or there is significant wobbling after insertion, it indicates that the crankshaft 4 has dimensional deviations or shape defects. During the inspection process, to improve inspection efficiency, operators can prepare multiple crankshafts 4 to be inspected simultaneously. While one crankshaft 4 is being tested, another crankshaft 4 can be prepared for installation on the mounting base 2 in advance, thus enabling continuous testing and greatly shortening the overall testing time.
[0056] Traditional crankshaft 4 inspection methods, such as using a coordinate measuring machine, require professional personnel to perform complex clamping, adjustment, and sampling operations. However, the tooling claimed in this application, through its simple mounting position and inspection slot 31 design, allows operators to complete the inspection simply by placing the crankshaft 4 in the mounting position and pushing the mounting base 2, without requiring professional skills training. This greatly reduces the difficulty of inspection and improves inspection efficiency.
[0057] Example 2
[0058] This embodiment is an improvement on embodiment 1.
[0059] like Figures 1-8 As shown, in this embodiment, a method for moving the mounting base 2 on the base 1 is provided. Specifically, the base 1 is provided with a sliding groove 11, and the bottom of the mounting base 2 is provided with a slider 22, which slides in cooperation with the sliding groove 11.
[0060] The detection seat 3 is detachably mounted at one end of the slide groove 11.
[0061] Specifically, the groove 11 on the base 1 has smooth walls and precise dimensions. The slider 22 at the bottom of the mounting base 2 is made of high-strength, wear-resistant engineering plastic, ensuring a high degree of fit with the groove 11. Before use, the operator applies an appropriate amount of lubricating oil to the groove 11 to further reduce the friction between the slider 22 and the groove 11, making the sliding of the mounting base 2 smoother. Simultaneously, a matching testing seat 3 is selected based on the specific model of the crankshaft 4 to be tested that day. The testing seat 3 can be detachably installed at one end of the groove 11 using bolts, and the operator uses appropriate tools to firmly fix the testing seat 3 in the predetermined position.
[0062] The sliding fit design between the slider 22 and the slide groove 11 allows the mounting base 2 to move smoothly and easily. Operators do not need to exert excessive force to push the mounting base 2 and can precisely control its position, ensuring the crankshaft 4 accurately aligns with the inspection groove 31 on the inspection seat 3. The inspection seat 3 is detachably mounted at one end of the slide groove 11. When the factory needs to inspect different models of crankshaft 4, only a suitable inspection seat 3 needs to be replaced. For example, if the factory adds a new model of crankshaft 4 with different dimensions and shape than previous products, the original inspection seat 3 can be removed and replaced with one designed for the new crankshaft 4 model to continue inspection work without the need to purchase a new set of inspection equipment. This not only saves on equipment procurement costs but also improves the versatility of the tooling, enabling it to adapt to the inspection needs of various crankshaft 4 specifications.
[0063] Example 3
[0064] This embodiment is an improvement on embodiment 2.
[0065] like Figures 1-8 As shown, in this embodiment, the top of the slider 22 is provided with a locking block, and the bottom of the mounting base 2 is provided with a locking groove. The locking block is adapted to the locking groove, and the mounting base 2 is engaged with the slider 22 through the cooperation of the locking block and the locking groove.
[0066] When the mounting base 2 needs to be installed, the operator aligns the slot at the bottom of the mounting base 2 with the locking block at the top of the slider 22, and then presses the mounting base 2 vertically downwards. Due to the precise fit between the locking block and the slot, the two can be quickly and tightly engaged together.
[0067] The snap-fit design, where the locking block and slot match, makes the installation of mounting base 2 simple and quick. A simple alignment and pressing action is all it takes to connect mounting base 2 to slider 22, significantly saving installation time and improving the assembly efficiency of the inspection fixture. Furthermore, when mounting base 2 wears out, becomes damaged, or needs to be replaced with a different type to accommodate different crankshaft 4 specifications during long-term use, the snap-fit structure makes disassembly of mounting base 2 easy. Operators can quickly remove damaged or unsuitable mounting base 2 from slider 22 and replace it with a new one, without the need for complex disassembly and reassembly of the entire fixture. This reduces maintenance costs and repair time, improving the maintainability of the fixture.
[0068] Example 4
[0069] This embodiment is an improvement on embodiment 1.
[0070] This embodiment provides a different method of moving the mounting base 2 compared to Embodiment 2.
[0071] like Figures 1-9 As shown, in this embodiment, a guide rail 12 is provided on the base 1, a slider 22 is provided on the guide rail 12, and the mounting base 2 is detachably mounted on the slider 22.
[0072] The detection seat 3 is detachably mounted at one end of the guide rail 12.
[0073] Specifically, when assembling this fixture, it is necessary to ensure that the detection groove 31 of the detection seat 3 and the center line of the guide rail 12 are on the same straight line, in order to prepare for the subsequent accurate detection of the crankshaft 4. After installation, apply an appropriate amount of lubricating oil to the guide rail 12 to reduce the friction when the slider 22 moves, and ensure that the mounting seat 2 can slide smoothly during the detection process.
[0074] The cooperation between the guide rail 12 and the slider 22 provides stable guidance for the movement of the mounting base 2. During the testing process, the mounting base 2 can move precisely along the guide rail 12, ensuring that the crankshaft 4's rotation axis is accurately aligned with the testing groove 31 of the testing seat 3, avoiding testing errors caused by deviations in the movement of the mounting base 2. Simultaneously, the mounting base 2 is securely mounted on the slider 22, and the testing seat 3 is fixed to one end of the guide rail 12, reducing interference from external factors on the testing process and improving the accuracy and reliability of the testing results.
[0075] Compared to the method of matching the slide groove 11 and the slider 22 in Embodiment 2, the method of using a slide rail is simpler in terms of manufacturing process.
[0076] Example 5
[0077] This embodiment is an improvement on embodiment 1.
[0078] like Figures 1-8 As shown, in this embodiment, a first driving device is provided on the base 1. The output end of the first driving device is fixedly connected to the mounting base 2. The first driving device drives the mounting base 2 to move, so that the mounting base 2 moves closer to or further away from the detection base 3.
[0079] Specifically, the first drive device installed on the base 1 is an electric linear cylinder, which has advantages such as high precision, fast response speed, and stable thrust. The output end of the electric linear cylinder is tightly fixed to the mounting base 2 by high-strength bolts to ensure that there will be no loosening or displacement between the two during the driving process.
[0080] Before the inspection begins, the operator places the crankshaft 4 to be inspected into the precise positioning groove of the mounting base 2. The shape of this groove perfectly matches the shaft hole of the crankshaft 4, allowing for quick and secure fixation. The operator then activates the control system of the inspection fixture, which sends a command to the electric linear cylinder. Upon receiving the command, the electric linear cylinder begins operation, its output pushing the mounting base 2 smoothly along a preset track towards the inspection seat 3. During this movement, the speed and position of the mounting base 2 can be precisely adjusted by the control system to ensure that the crankshaft 4 is accurately aligned with the inspection groove 31 on the inspection seat 3.
[0081] The application of the first drive device enables the automated movement of the mounting base 2, which greatly shortens the inspection cycle compared to manually pushing the mounting base 2. When manually pushing the mounting base 2, it is difficult to maintain a consistent speed and force for each operation, and time is required for positioning and adjustment; while the electric linear cylinder can drive the mounting base 2 to move quickly and accurately, which greatly reduces the inspection time of each crankshaft 4 and helps to further improve inspection efficiency.
[0082] Example 6
[0083] This embodiment provides a driving method for the mounting base 2 and the detection base 3 that differs from that in embodiment 5.
[0084] like Figures 1-8 As shown, in this embodiment, both the mounting base 2 and the detection base 3 are slidably disposed on the base 1, and a second driving device 5 is disposed between the mounting base 2 and the detection base 3; the second driving device 5 is provided with two connection output terminals, and the two connection output terminals are respectively connected to the mounting base 2 and the detection base 3;
[0085] The second driving device 5 drives the mounting base 2 and the detection base 3 to move away from or towards each other.
[0086] Specifically, the second drive device 5 of this application can be an electric push rod or a dual-shaft cylinder.
[0087] During the testing process, crankshaft 4 is placed in the dedicated mounting slot of mounting base 2. The shape of the mounting slot fits tightly with the shaft hole of crankshaft 4, allowing for quick and secure fixation of crankshaft 4. Subsequently, the operator inputs the testing command on the tooling control interface. Upon receiving the command, the control system sends a drive signal to the electric push rod. The electric push rod begins to operate, with its two connected output ends moving synchronously, pushing mounting base 2 and testing base 3 closer together. During this approach, due to the high-precision control of the electric push rod, the movement speed of mounting base 2 and testing base 3 is uniform and stable, ensuring that the shaft of crankshaft 4 is accurately aligned with the testing slot 31 on testing base 3.
[0088] When the crankshaft 4 shaft approaches the test slot 31, the electric push rod automatically reduces its advancing speed to achieve more precise alignment. If the crankshaft 4 shaft can be smoothly inserted into the test slot 31 with good fit and no obvious shaking or jamming, the inspector can determine that the crankshaft 4 is qualified; if the shaft cannot be inserted into the test slot 31, or if there are obvious gaps or shaking after insertion, it is determined to be unqualified.
[0089] The second drive device 5 simultaneously drives the mounting base 2 and the detection base 3, ensuring the relative positional accuracy of the two during movement. Furthermore, the mounting base 2 and the detection base 3 move simultaneously towards or away from each other, significantly shortening the overall detection time compared to detection methods where only the mounting base 2 or the detection base 3 moves in one direction.
[0090] Example 7
[0091] This embodiment is an improvement on embodiment 1.
[0092] like Figures 1-8As shown, in this embodiment, a mounting shaft 21 is provided on the side of the mounting base 2 near the detection base 3, and the mounting shaft 21 is adapted to the shaft hole of the crankshaft 4. In a specific embodiment, the mounting shaft 21 includes a shaft body and a shaft head, the outer diameter of the shaft head is smaller than the outer diameter of the shaft body, and the shaft body is adapted to the shaft hole of the crankshaft 4.
[0093] In this embodiment, the mounting base 2 is provided with a connecting post, and one end of the mounting shaft 21 is provided with a connecting hole, and the connecting post is threadedly connected to the connecting hole.
[0094] The fitting design between the mounting shaft 21 and the crankshaft 4 bore ensures stable installation of the crankshaft 4 during testing. This tight fit prevents measurement errors caused by crankshaft 4 movement during testing, improving the accuracy of the results. The mounting shaft 21 and mounting base 2 are connected by threads, facilitating the replacement of the mounting shaft 21. When the mounting shaft 21 wears out or when different models of crankshaft 4 need to be tested, it can be quickly replaced, reducing tooling maintenance costs and time. Furthermore, this design allows the tooling to adapt to various crankshaft 4 testing needs by replacing mounting shafts 21 with different specifications, improving the tooling's versatility and reducing the cost for companies to purchase multiple testing equipment for different crankshaft 4 models.
[0095] Example 8
[0096] This embodiment is an improvement on embodiment 1.
[0097] like Figures 1-9 As shown, this application also provides a crankshaft 4 production system, which includes a molding mechanism and the crankshaft rapid inspection fixture described above. Specifically, the molding mechanism is an injection molding machine, which has a high-precision mold clamping system and a stable injection pressure control device, capable of precisely controlling the filling and molding process of polyoxymethylene material in the mold. When producing the crankshaft 4, polyoxymethylene raw material is added to the injection molding machine barrel, heated and melted, and then injected into a specially designed crankshaft 4 mold cavity under high pressure. The mold cavity is designed with extremely high precision, ensuring that the produced crankshaft 4 meets the design requirements in terms of size and shape. The molded crankshaft 4 is demolded from the injection molding machine mold and directly conveyed to an adjacent inspection area via an automated conveyor. In the inspection area, the crankshaft 4 is inspected using the aforementioned inspection fixture. Crankshafts 4 that pass the inspection are conveyed to subsequent processing or assembly stages via another automated conveyor line; unqualified crankshafts 4 are sorted out and placed in a dedicated non-conforming product area for further processing, such as rework or scrapping.
[0098] This system integrates the forming mechanism and crankshaft rapid inspection fixture into a single production system, achieving seamless integration of production and inspection. After forming, crankshaft 4 requires no complex transfer and proceeds directly to the inspection stage, reducing intermediate waiting and handling time. The inspection fixture can accurately detect the critical dimensions and angles of crankshaft 4, ensuring reliable quality of crankshaft 4 entering subsequent processes and improving the overall quality of the final product.
[0099] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0100] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0101] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A crankshaft rapid inspection fixture, characterized in that, include: A base (1) is provided on which a detection seat (3) and a mounting seat (2) are provided that are movable relative to each other, and the detection seat (3) is provided on one side of the mounting seat (2); The mounting base (2) is provided with a mounting position for fixing the crankshaft (4), and the detection base (3) is provided with a detection groove (31), which is adapted to the rotating shaft of the crankshaft (4).
2. The crankshaft rapid inspection fixture according to claim 1, characterized in that: The base (1) is provided with a sliding groove (11), and the bottom of the mounting base (2) is provided with a slider (22), which slides in cooperation with the sliding groove (11); The detection seat (3) is detachably mounted at one end of the slide groove (11).
3. The crankshaft rapid inspection fixture according to claim 2, characterized in that: The top of the slider (22) is provided with a locking block, and the bottom of the mounting base (2) is provided with a locking groove. The locking block is adapted to the locking groove, and the mounting base (2) is locked onto the slider (22) through the cooperation of the locking block and the locking groove.
4. The crankshaft rapid inspection fixture according to claim 1, characterized in that: The base (1) is provided with a guide rail (12), the guide rail (12) is provided with a slider (22), and the mounting base (2) is detachably mounted on the slider (22); The detection seat (3) is detachably mounted at one end of the guide rail (12).
5. The crankshaft rapid inspection fixture according to any one of claims 1-4, characterized in that: A first driving device is provided on the base (1). The output end of the first driving device is fixedly connected to the mounting base (2). The first driving device drives the mounting base (2) to move, so that the mounting base (2) moves closer to or further away from the detection base (3).
6. The crankshaft rapid inspection fixture according to any one of claims 1-4, characterized in that: The mounting base (2) and the detection base (3) are both slidably disposed on the base (1), and a second driving device (5) is disposed between the mounting base (2) and the detection base (3); the second driving device (5) is provided with two connection output terminals, and the two connection output terminals are respectively connected to the mounting base (2) and the detection base (3); The second driving device (5) drives the mounting base (2) and the detection base (3) to move away from or closer to each other.
7. The crankshaft rapid inspection fixture according to any one of claims 1-4, characterized in that: The mounting base (2) is provided with a mounting shaft (21) on the side near the detection base (3), and the mounting shaft (21) is adapted to the shaft hole of the crankshaft (4).
8. The crankshaft rapid inspection fixture according to claim 7, characterized in that: The mounting base (2) is provided with a connecting post, and one end of the mounting shaft (21) is provided with a connecting hole. The connecting post is threadedly connected to the connecting hole.
9. The crankshaft rapid inspection fixture according to any one of claims 1-3, characterized in that: The detection seat (3) is integrally formed with the base (1), and the detection groove (31) is disposed on the side of the detection seat (3) near the mounting seat (2).
10. A crankshaft (4) production system, characterized in that: It includes a forming mechanism and a crankshaft rapid inspection fixture as described in any one of claims 1-9.