A machining workpiece detection tool

Abstract

The application discloses a machining workpiece detection tool, and relates to the field of workpiece detection technology, which comprises a detection base, a receiving assembly is installed on one side of the top end of the detection base, a detection module is placed in the receiving assembly, a main positioning pin for cooperating with a workpiece reference hole is installed on the detection base, a rotating groove is formed in the detection base, a rotatable rotating assembly is arranged in the rotating groove, a straightly-slidable sliding positioning piece is installed on the rotating assembly, and an auxiliary positioning pin is installed on the top of the sliding positioning piece. The application realizes the positioning and adaptation of the detection tool to different models of gear shifting mechanism parts, provides an orderly receiving space for the detection module, lays a stable foundation for subsequent one-time clamping and multi-parameter detection, and improves the application range and use convenience of the detection tool.

Description

Technical Field

[0001] This application relates to the field of workpiece inspection technology, and in particular to a tool for inspecting machined workpieces. Background Technology

[0002] In the automotive manufacturing industry, the machining accuracy of the core components of the transmission shift mechanism (such as shift forks, shift fork shafts, shift arms, etc.) directly determines the smoothness of shifting and the reliability of the vehicle operation. These parts are mostly irregular and irregularly shaped structures, integrating multiple high-precision holes, channels and mating planes. The detection accuracy of key parameters such as hole position and surface height directly affects assembly compatibility.

[0003] The current testing methods in the industry have obvious limitations: First, they rely on general measuring tools such as vernier calipers, micrometers, and plug gauges, which require multiple clamping of workpieces to test different parameters. This is cumbersome and inefficient, with a single piece testing usually taking 3 to 5 minutes, which is difficult to meet the batch testing needs of the production line. Second, although coordinate measuring machines have high precision, they have high equipment purchase costs, long testing cycles, and require professional personnel to operate, making them unsuitable for rapid full inspection or sampling inspection scenarios on the production site.

[0004] Therefore, given the complex shape of automotive transmission shift mechanism parts, the large number of testing parameters, and the urgent need for mass production, the industry urgently needs a specialized tool that is compact, easy to operate, highly adaptable, and capable of rapid testing of multiple parameters in a single clamping operation, in order to solve the problems of low testing efficiency, large errors, and insufficient adaptability of existing testing methods. Utility Model Content

[0005] To address the issue of multi-parameter inspection of machined automotive transmission shift mechanism workpieces (such as shift forks, shift fork shafts, shift arms, etc.) and to achieve rapid positioning and comprehensive inspection functions, this application provides a machined workpiece inspection tool.

[0006] The technical solution for a machining workpiece inspection tool provided in this application is as follows:

[0007] A workpiece inspection tool includes an inspection base, a storage assembly installed on one side of the top of the inspection base, an inspection module placed inside the storage assembly, a main positioning pin for engaging with a reference hole in the workpiece installed on the inspection base, a rotating slot provided on the inspection base, a rotatable rotating assembly provided inside the rotating slot, a linearly sliding sliding positioning component installed on the rotating assembly, and an auxiliary positioning pin installed on the top of the sliding positioning component.

[0008] By adopting the above technical solution, the detection base serves as the overall installation and load-bearing foundation, providing a stable assembly benchmark for each component. The main positioning pin first forms a preliminary fit with the workpiece's reference hole, achieving initial positioning of the workpiece. The rotating component can rotate within the rotating slot of the detection base, and the sliding positioning component can slide linearly along the rotating component. The two work together to drive the auxiliary positioning pin to flexibly adjust its horizontal position to match the reference hole spacing and distribution of workpieces of different specifications. At the same time, the storage component centrally stores the detection module, facilitating its retrieval and return. This enables the detection tool to be adapted to the positioning of different types of shift mechanism parts, while providing an orderly storage space for the detection module. This lays a stable foundation for subsequent multi-parameter detection in a single clamping, improving the applicability and ease of use of the detection tool.

[0009] Preferably, the rotating assembly includes a slide rail rotatably disposed within the rotating slot, a rotating shaft fixed within the detection base is rotatably connected at the bottom center of the slide rail, and the sliding positioning member is slidably mounted on the slide rail.

[0010] By adopting the above technical solution, the rotating shaft of the rotating component is fixed in the detection base, the supporting slide rail rotates around the rotating shaft in the rotating slot, and the sliding positioning component slides along the slide rail. The two form a dual adjustment structure, which realizes the purpose of adjusting the auxiliary positioning pin in multiple directions and a wide range on the horizontal plane, and further expands the adaptability of the detection tool to workpieces with different datum hole distributions.

[0011] Preferably, the sliding positioning component includes a slide block slidably sleeved on the slide rail, a positioning bolt threaded into one side of the slide block, one end of the positioning bolt abutting against the side wall of the slide rail, and an auxiliary positioning pin mounted on the slide block.

[0012] By adopting the above technical solution, the sliding positioning component is sleeved on the slide rail to achieve linear sliding. After being adjusted to the target position, the positioning bolt thread passes through the sliding block and abuts against the side wall of the slide rail, fixing the relative position of the sliding block and the slide rail. This achieves the purpose of reliable fixing after the auxiliary positioning pin position is adjusted, ensuring the stability of the positioning structure and reducing the error caused by positioning offset during the detection process.

[0013] Preferably, an adjustable-height support component is installed on one side of the slide, and the top of the support component abuts against the bottom of the workpiece.

[0014] By adopting the above technical solution, the supporting component is installed on one side of the slide and moves synchronously with the slide. Its top end abuts against the bottom of the workpiece to form support. It cooperates with the holes of the main positioning pin and the auxiliary positioning pin to achieve effective support for the bottom of the workpiece, avoids deformation or positioning deviation of the workpiece due to its own weight, and improves the positioning accuracy and the accuracy of the detection results.

[0015] Preferably, the support assembly includes an extension plate fixed to one side of the slide block, a screw threaded onto the extension plate, a support block fixed to the top of the screw, and a handle fixed to the bottom of the screw.

[0016] By adopting the above technical solution, the extension plate of the support component provides the installation carrier. Rotating the handle drives the screw to move up and down along the extension plate, thereby adjusting the height of the support block to fit the bottom of the workpiece. This achieves the purpose of accurately adjusting the support height according to the thickness and shape of the workpiece, enhancing the flexibility of the support structure and improving the adaptability to workpieces with different structures.

[0017] Preferably, a clamping component that clamps against the side of the workpiece is installed on one side of the top of the detection base near the position of the main positioning pin.

[0018] By adopting the above technical solution, the clamping component is installed on the detection base near the main positioning pin. After the main positioning pin and auxiliary positioning pin complete the hole positioning, the clamping component applies clamping force from the side of the workpiece, thereby achieving the purpose of restricting the horizontal displacement of the workpiece, further improving the stability of the workpiece clamping, and reducing the impact of workpiece shaking on the detection accuracy during the detection process.

[0019] Preferably, the storage component includes a storage box mounted on the detection base, a sliding cover slidably engaging with the storage box, a support inside the storage box, and a detection module placed on the support.

[0020] By adopting the above technical solution, the storage box of the storage component provides storage space, the bracket positions the detection module, and the sliding cover closes the storage box, thus achieving the purpose of centralized storage and protection of the detection module, reducing the risk of loss or damage to the detection module, and improving the convenience of retrieving and returning the detection module.

[0021] Preferably, the main positioning pin includes a positioning tube installed on the detection base, a connecting post inserted into the positioning tube, and a positioning rod fixed at the top of the connecting post for engaging with the workpiece reference hole. The auxiliary positioning pin has the same structure as the main positioning pin.

[0022] By adopting the above technical solution, the positioning tube of the main positioning pin is fixed on the testing base, the connecting column is inserted into the positioning tube, the positioning rod cooperates with the workpiece reference hole, and the auxiliary positioning pin adopts the same structure. This achieves the purpose of replacing the corresponding positioning rod according to the different workpiece reference hole specifications, improves the adaptability of the positioning pin to reference holes of different diameters, and expands the application range of the testing tool.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Through the synergistic action of the main and auxiliary positioning pins, supporting components and clamping components, a multi-directional stable positioning is formed, reducing the offset and deformation during the workpiece inspection process; the inspection operation does not require complicated skills, the qualification judgment is intuitive, reducing human error and improving the consistency and reliability of the inspection results;

[0025] 2. Through the dual adjustment structure of rotating components and sliding positioning parts, coupled with the positioning pin design of replaceable positioning rods, it can flexibly adapt to shift mechanism parts with different reference hole spacing, hole diameter and shape, without the need to customize inspection tools for a single model, thus reducing production changeover costs and cycle time;

[0026] 3. Enables multiple parameters such as hole diameter, position, and height to be detected in a single workpiece clamping, avoiding the need for multiple clamping and tool switching in traditional testing; at the same time, the storage components centrally store the testing modules, improving the convenience of tool access, significantly shortening the single-piece testing time, and adapting to the batch testing needs of the production line. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0028] Figure 2 This is a three-dimensional schematic diagram of the rotating component in this application;

[0029] Figure 3 This is a three-dimensional schematic diagram of the sliding positioning component in this application;

[0030] Figure 4 This is a three-dimensional schematic diagram of the support component in this application;

[0031] Figure 5 This is a three-dimensional schematic diagram of the storage components of this application.

[0032] Figure label:

[0033] 1. Testing base; 2. Rotating slot; 3. Rotating assembly; 31. Rotating shaft; 32. Slide rail; 4. Sliding positioning component; 41. Slide seat; 42. Positioning bolt; 5. Auxiliary positioning pin; 6. Clamping assembly; 7. Main positioning pin; 71. Positioning tube; 72. Connecting column; 73. Positioning rod; 8. Storage assembly; 81. Storage box; 82. Support; 83. Sliding cover; 9. Testing module; 10. Support assembly; 101. Extension plate; 102. Screw; 103. Support block; 104. Handle. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.

[0035] This application discloses a tool for inspecting machined workpieces.

[0036] Reference Figure 1 and Figure 2 A workpiece inspection tool includes an inspection base 1, which serves as the mounting and support foundation for the entire device. The inspection base 1 is made of gray cast iron and precision milled to ensure a stable assembly reference for each component. A storage assembly 8 is bolted to one side of the top of the inspection base 1. An inspection module 9 is placed inside the storage assembly 8. The inspection module 9 can be configured with go / no-go gauges, position detection pins, dial indicators, etc., according to inspection requirements. A main positioning pin 7 is inserted into the inspection base 1, which engages with the main reference hole of the workpiece to achieve initial positioning. A circular rotating slot 2 is provided on the inspection base 1, and a rotatable rotating assembly 3 is installed within the rotating slot 2. A linearly sliding sliding positioning component 4 is mounted on the rotating assembly 3, and an auxiliary positioning pin 5 is inserted into the top of the sliding positioning component 4. The auxiliary positioning pin 5 cooperates with the main positioning pin 7 to complete the full positioning of the workpiece.

[0037] The main positioning pin 7 is initially aligned with the workpiece reference hole. Then, the rotating component 3 rotates within the rotating slot 2, and the sliding positioning component 4 slides linearly along the rotating component 3. This dual adjustment drives the auxiliary positioning pin 5 to precisely align with the secondary reference hole of the workpiece, enabling rapid positioning of workpieces of different specifications. The storage component 8 provides a centralized storage space for the detection module 9, preventing the detection tools from being scattered and lost.

[0038] Reference Figure 1 and Figure 2 The rotating assembly 3 includes a slide rail 32 rotatably disposed within the rotating slot 2. The slide rail 32 has a rectangular cross-section, and its length is designed according to the maximum reference hole spacing of the workpiece being inspected. A rotating shaft 31, which is fixed inside the inspection base 1, is rotatably connected to the bottom center of the slide rail 32 via a deep groove ball bearing. The bottom end of the rotating shaft 31 is fixed in the mounting hole inside the inspection base 1 with an interference fit, ensuring that the rotating shaft 31 is perpendicular to the top surface of the inspection base 1. A sliding positioning component 4 is slidably mounted on the slide rail 32. Guide grooves are provided on both sides of the slide rail 32, which are adapted to the inner protrusions of the sliding positioning component 4 to improve sliding stability.

[0039] The slide rail 32 is provided with rotational support by the rotating shaft 31. An auxiliary support platform is provided on the inner side of the rotating slot 2. The two ends of the slide rail 32 are connected to the auxiliary support platform to ensure the levelness of the slide rail 32 during use. The slide rail 32 can rotate 360° around the rotating shaft 31. With the cooperation of the sliding positioning piece 4, it slides along the straight line of the slide rail 32, so that the auxiliary positioning pin 5 can be adjusted in multiple directions and a wide range on the horizontal surface of the top surface of the detection base 1 to adapt to workpieces with different reference hole distribution angles and spacings.

[0040] Reference Figure 2 and Figure 3The sliding positioning component 4 includes a slide block 41 that is slidably sleeved on the slide rail 32. The slide block 41 is made of aluminum alloy, which reduces the overall weight and facilitates processing. A threaded hole is opened on one side of the slide block 41, and a positioning bolt 42 is threaded into the threaded hole. The positioning bolt 42 is an internal hex bolt, and a rubber pad is glued to one end of the positioning bolt 42. The rubber pad abuts against the side wall of the slide rail 32 to prevent the positioning bolt 42 from directly squeezing and causing wear on the side wall of the slide rail 32. An auxiliary positioning pin 5 is installed at the top center of the slide block 41 through a threaded connection to ensure that the auxiliary positioning pin 5 is perpendicular to the top surface of the detection base 1.

[0041] The position of the slide block 41 is adjusted by sliding along the guide groove of the slide rail 32. After the auxiliary positioning pin 5 is aligned with the secondary reference hole of the workpiece, the positioning bolt 42 is tightened. The position of the slide block 41 is fixed by the friction between the rubber pad and the side wall of the slide rail 32, so as to reliably lock the auxiliary positioning pin 5 and avoid positioning deviation caused by vibration during the detection process.

[0042] Reference Figure 1 , Figure 3 and Figure 4 An adjustable height support assembly 10 is bolted to one side of the slide block 41. The top of the support assembly 10 abuts against the bottom of the workpiece. The main positioning pin 7 and the auxiliary positioning pin 5 match the positioning hole of the workpiece, so that the workpiece remains horizontal after being inserted into both. At the same time, the bottom is limited by the support assembly 10 to form a three-point support structure. The support assembly 10 includes an extension plate 101 fixed to one side of the slide block 41 and set perpendicular to the side wall of the slide block 41. The extension plate 101 has a threaded hole, and a screw 102 is threaded into the threaded hole. The screw 102 adopts a trapezoidal thread design to improve the stability of height adjustment. The top of the screw 102 is connected to a support block 103 through a ball joint. The support block 103 is made of nylon material and the surface is polished smooth to avoid scratching the bottom surface of the workpiece. A handle 104 is welded to the bottom of the screw 102. The surface of the handle 104 is provided with anti-slip texture to facilitate the operator to rotate and adjust.

[0043] The extension plate 101 provides an installation base for the screw 102. Rotating the handle 104 can drive the screw 102 to move up and down along the threaded hole of the extension plate 101, thereby adjusting the height of the support block 103. This allows the support block 103 to accurately fit the bottom of workpieces of different thicknesses and shapes, and cooperate with the main positioning pin 7 and the auxiliary positioning pin 5 to form a stable support, preventing the workpiece from deforming or becoming loose due to its own weight.

[0044] Reference Figure 1 A clamping component 6 is installed on one side of the top of the detection base 1 near the main positioning pin 7. The clamping component 6 includes a stand installed on the detection base 1, a cylinder is installed on the stand, and a clamping block is installed at one end of the cylinder.

[0045] After the main positioning pin 7 and the auxiliary positioning pin 5 complete the hole positioning of the workpiece, the cylinder drives the clamping block to move towards the side of the workpiece and clamp it, so that the clamping block applies clamping force from the side of the workpiece, firmly fixing the workpiece on the positioning structure, restricting the horizontal displacement of the workpiece, further improving the clamping stability, and reducing the impact of workpiece shaking on the detection accuracy during the detection process.

[0046] Reference Figure 1 and Figure 5 The storage component 8 includes a storage box 81 bolted to the detection base 1. The storage box 81 is a cuboid structure, injection molded from ABS plastic, which is lightweight and corrosion resistant. A sliding cover 83 is slidably attached to the storage box 81. The sliding cover 83 has protrusions on both sides that match the sliding grooves on both sides of the storage box 81, enabling sliding opening and closing. Inside the storage box 81 is a support 82 that matches the shape of the detection module 9. The support 82 is made of sponge material and has grooves on its surface that correspond to the detection module 9. The detection module 9 is placed in the grooves to avoid collision damage during movement.

[0047] The storage box 81 provides a closed storage space, the support 82 positions and buffers the detection module 9, and the sliding cover 83 can prevent dust and oil from contaminating the detection module 9 after closing. At the same time, the centralized storage design makes it convenient for operators to quickly retrieve and return the detection module 9, improving the continuity of the detection process.

[0048] Reference Figure 1 and Figure 2 The main positioning pin 7 includes a positioning tube 71 installed on the detection base 1. The positioning tube 71 is made of stainless steel and is fixed in the mounting hole of the detection base 1 by interference fit. A connecting post 72 is inserted into the positioning tube 71. The connecting post 72 and the positioning tube 71 are clearance fit for easy insertion and removal replacement. The top of the connecting post 72 is fixed with a positioning rod 73 for mating with the workpiece reference hole by thread. The diameter of the positioning rod 73 is designed in various models according to the specifications of common workpiece reference holes. The auxiliary positioning pin 5 has the same structure as the main positioning pin 7 and the corresponding model of positioning rod 73 can be replaced simultaneously.

[0049] The positioning tube 71 provides installation guidance for the connecting post 72. When inspecting workpieces with reference holes of different diameters, the connecting post 72 can be directly pulled out and replaced with the connecting post 72 with the corresponding positioning rod 73. There is no need to disassemble the positioning pin as a whole, which improves the flexibility of adapting to workpieces with different diameters.

[0050] The implementation principle of a machining workpiece inspection tool according to an embodiment of this application is as follows:

[0051] Before use, select the corresponding model of positioning rod 73 according to the reference hole specifications of the workpiece to be tested, insert the connecting post 72 into the positioning tube 71, and complete the assembly of the main positioning pin 7 and the auxiliary positioning pin 5; at the same time, according to the testing requirements, place the corresponding testing module 9 (such as go / no-go gauge, position detection pin, dial indicator) in the support 82 of the storage box 81 to complete the preparation before testing.

[0052] When clamping the workpiece, first align the main reference hole of the workpiece with the positioning rod 73 of the main positioning pin 7, and then insert it so that the bottom of the workpiece initially fits against the detection base 1; then rotate the slide rail 32 to adjust its rotation angle, and then slide the slide block 41 so that the positioning rod 73 of the auxiliary positioning pin 5 aligns with the secondary reference hole of the workpiece, and then tighten the positioning bolt 42 to fix the position of the slide block 41; next, rotate the handle 104 of the support assembly 10 to adjust the height of the support block 103 so that it is in close contact with the bottom of the workpiece to form a three-point support; finally, start the cylinder to drive the clamping block to move towards the side of the workpiece and clamp it, so that the clamping block applies clamping force from the side of the workpiece, firmly fixing the workpiece on the positioning structure, restricting the horizontal displacement of the workpiece, and completing the full positioning clamping of the workpiece.

[0053] During the inspection process, the operator takes out the corresponding inspection module 9 from the storage box 81 and inspects the key dimensions of the workpiece in sequence: using a go / no-go gauge to check whether the hole diameter is qualified, using a positional inspection pin to check whether the hole position meets the standard, and using a dial indicator to check whether the surface height or depth dimension is within the tolerance range. After all inspection items are completed, the clamping component 6 is released, the workpiece is removed, the inspection module 9 is returned to the storage box 81, the sliding cover 83 is closed, and the single inspection process is completed.

[0054] The entire inspection process does not require multiple workpiece clamping, the positioning adjustment is flexible and convenient, and the inspection module 9 is easy to use, which greatly improves the inspection efficiency and accuracy, while reducing the skill requirements for operators.

[0055] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tool for inspecting machined workpieces, characterized in that, include: A detection base (1) is provided, and a storage component (8) is installed on one side of the top of the detection base (1). A detection module (9) is placed inside the storage component (8). A main positioning pin (7) for cooperating with the reference hole of the workpiece is installed on the detection base (1). A rotating slot (2) is provided on the detection base (1). A rotatable rotating component (3) is provided inside the rotating slot (2). A sliding positioning component (4) that can slide linearly is installed on the rotating component (3). An auxiliary positioning pin (5) is installed on the top of the sliding positioning component (4).

2. The workpiece inspection tool according to claim 1, characterized in that: The rotating assembly (3) includes a slide rail (32) rotatably disposed in the rotating slot (2), and a rotating shaft (31) fixed in the detection base (1) is rotatably connected at the bottom center of the slide rail (32). The sliding positioning member (4) is slidably mounted on the slide rail (32).

3. The workpiece inspection tool according to claim 2, characterized in that: The sliding positioning component (4) includes a slide block (41) slidably sleeved on the slide rail (32), a positioning bolt (42) is threaded into one side of the slide block (41), one end of the positioning bolt (42) abuts against the side wall of the slide rail (32), and the auxiliary positioning pin (5) is installed on the slide block (41).

4. The workpiece inspection tool according to claim 3, characterized in that: An adjustable height support assembly (10) is installed on one side of the slide (41), and the top of the support assembly (10) abuts against the bottom of the workpiece.

5. The workpiece inspection tool according to claim 4, characterized in that: The support assembly (10) includes an extension plate (101) fixed to one side of the slide (41), a screw (102) threaded onto the extension plate (101), a support block (103) fixed to the top end of the screw (102), and a handle (104) fixed to the bottom end of the screw (102).

6. The workpiece inspection tool according to claim 1, characterized in that: A clamping component (6) is installed on one side of the top of the detection base (1) near the position of the main positioning pin (7) to clamp the side of the workpiece.

7. The workpiece inspection tool according to claim 1, characterized in that: The storage component (8) includes a storage box (81) installed on the detection base (1), a sliding cover (83) is slidably attached to the storage box (81), a support (82) is provided inside the storage box (81), and a detection module (9) is placed on the support (82).

8. The workpiece inspection tool according to claim 1, characterized in that: The main positioning pin (7) includes a positioning tube (71) installed on the detection base (1), a connecting post (72) is inserted into the positioning tube (71), and a positioning rod (73) for cooperating with the workpiece reference hole is fixed at the top of the connecting post (72). The auxiliary positioning pin (5) has the same structure as the main positioning pin (7).

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