Tool for measuring size of inner hole of cylinder sleeve
By designing the cylinder liner inner hole size measurement tool, using a measuring rod with a curved handle and a threaded measuring joint and a micrometer measuring head, the problem of difficulty in ensuring the accuracy of the cylinder liner in the prior art is solved, and efficient and accurate inner hole measurement and processing is achieved.
Patent Information
- Application Number
- CN202422332512.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When processing the inner holes of the S40ME-C9.5CV5 material cylinder liner, it is difficult to ensure the accuracy of the inner hole without retracting the boring bar and the unloading head, resulting in the time-consuming and inability to ensure the machining accuracy of the repeated clipping.
A cylinder liner inner bore dimension measurement tool is designed, including a measuring joint rod with arc handle and threaded fit and a micrometer measuring head. It can measure the inner bore dimensions without retracting the bore bar and unloading the head, and achieve reliable fixation and accurate measurement through coaxial arrangement and threaded fit.
It ensures the machining accuracy of the inner hole of the cylinder liner without retracting the boring bar and unloading the tool head, improves the processing efficiency and quality, and simplifies the operation process.
Smart Images
Figure CN223064537U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and specifically relates to a measuring tool for the inner hole size of a cylinder liner. Background Technique
[0002] During the machining process of a certain type of cylinder liner made of S40ME-C9.5CV5 material, high precision is required for the inner hole of the cylinder liner, and its size needs to meet φ400 (0, +0.089). The machining machine for the inner hole of the cylinder liner is a special-purpose machine. During the machining process, the outer circles at both ends of the cylinder liner are clamped, and the boring bar passes through the support seats at both ends of the cylinder liner, and the inner hole of the cylinder liner is machined by the cutting tool head on the boring bar.
[0003] The difficulties in machining the inner hole of the cylinder liner made of S40ME-C9.5CV5 material are as follows:
[0004] The inner hole size of the cylinder liner made of S40ME-C9.5CV5 material has high precision. The inner hole size of the cylinder liner is φ400 (0, +0.089), the depth of the inner hole ripple is 0.04, the roundness of the inner hole is 0.02. The inner hole size is measured with an internal micrometer. It is necessary to retract the boring bar, remove the cutting tool head, reinstall and retool. The inner hole size of the cylinder liner cannot be guaranteed. Reinstalling and retooling takes half an hour, but the machining precision of the inner hole size of the cylinder liner cannot be guaranteed. The most ideal solution is to use a tool or fixture that can measure the inner hole size of the cylinder liner without retracting the boring bar and removing the cutting tool head. After analyzing the part machining process, a solution that can perfectly solve this problem has been studied and designed. Content of the Utility Model
[0005] The utility model provides a measuring tool for the inner hole size of a cylinder liner. This measuring tool can measure the inner hole size of the cylinder liner without retracting the boring bar and removing the cutting tool head, thereby ensuring the machining precision requirements for the inner hole of the cylinder liner, improving the machining efficiency, and ensuring the machining quality.
[0006] In order to achieve the above technical features, the purpose of the utility model is realized as follows: A measuring tool for the inner hole size of a cylinder liner includes an arc-shaped handle. The two ends of the arc-shaped handle are provided with a first vertical rod and a second vertical rod arranged vertically; a first threaded hole is machined on the first vertical rod, and a second threaded hole is machined on the second vertical rod; a measuring extension rod is fixed on the outside of the part where the first threaded hole is located, and a micrometer measuring head is fixed on the outside of the part where the second threaded hole is located.
[0007] The arc-shaped handle includes an inner arc surface and an outer arc surface.
[0008] The end of the measuring extension rod is provided with a circular arc tip, and the measuring extension rod forms a threaded fit with the first threaded hole through a first threaded post arranged at the other end.
[0009] The micrometer measuring head is in threaded fit with the second threaded hole through the second threaded post.
[0010] The distance L between the end of the measuring extension rod and the end of the micrometer measuring head is equal to the inner hole size of the cylinder liner.
[0011] The measuring extension rod and the micrometer measuring head are arranged coaxially.
[0012] Advantages of the present utility model:
[0013] 1. The measuring tool of the present utility model can measure the inner hole size of the cylinder liner without retracting the boring bar and removing the cutter head, thus ensuring the machining accuracy requirements for the inner hole of the cylinder liner, improving the machining efficiency, and ensuring the machining quality.
[0014] 2. By adopting the above-mentioned arc-shaped handle, it is convenient to hold and operate the measuring tool, and thus convenient for subsequent dimension measurement.
[0015] 3. The measuring extension rod with the above structure is convenient for reliable fixed installation with the arc-shaped handle.
[0016] 4. Through the above-mentioned threaded fit, it is ensured to realize the reliable fixed installation of the micrometer measuring head.
[0017] 5. Through the above-mentioned dimension fit, it is ensured that the dimension just matches the inner hole size of the cylinder liner.
[0018] 6. Through the above-mentioned coaxial arrangement, it is ensured to cooperate with the inner hole subsequently, and thus the measurement accuracy is ensured. Description of the Drawings
[0019] The following further illustrates the present utility model with reference to the drawings and embodiments.
[0020] Figure 1 It is the overall front view of the structure of the present utility model.
[0021] Figure 2 It is the side view of the arc-shaped handle of the present utility model.
[0022] Figure 3 It is the dimension structure diagram of the present utility model.
[0023] In the figure: measuring extension rod 1, arc tip 2, first threaded hole 3, first threaded post 4, first vertical rod 5, inner arc surface 6, outer arc surface 7, second vertical rod 8, second threaded post 9, second threaded hole 10, micrometer measuring head 11, arc-shaped handle 12. Detailed Embodiment
[0024] The following further illustrates the embodiments of the present utility model with reference to the drawings.
[0025] As Figures 1-3 shown, a measuring tool for the inner hole size of a cylinder liner includes an arc-shaped handle 12, and two ends of the arc-shaped handle 12 are provided with a first vertical rod 5 and a second vertical rod 8 arranged vertically; a first threaded hole 3 is machined on the first vertical rod 5, and a second threaded hole 10 is machined on the second vertical rod 8; a measuring extension rod 1 is fixed outside the part where the first threaded hole 3 is located, and a micrometer measuring head 11 is fixed outside the part where the second threaded hole 10 is located. The measuring tool can measure the inner hole size of the cylinder liner without withdrawing the boring bar and removing the cutter head, thereby ensuring the machining accuracy requirements for the inner hole of the cylinder liner, improving the machining efficiency, and ensuring the machining quality. During the specific measurement process, the arc tip 2 and the micrometer measuring head 11 are matched with the inner hole to realize the dimensional fit of the inner cylinder liner.
[0026] Further, the arc-shaped handle 12 includes an inner arc surface 6 and an outer arc surface 7. By adopting the above arc-shaped handle 12, it is convenient to hold the measuring tool for operation, and thus convenient for subsequent dimensional measurement.
[0027] Further, the end of the measuring extension rod 1 is provided with an arc tip 2, and the measuring extension rod 1 is in threaded fit with the first threaded hole 3 through a first threaded post 4 provided at the other end. The measuring extension rod 1 with the above structure is convenient for reliable fixed installation with the arc-shaped handle 12.
[0028] Further, the micrometer measuring head 11 is in threaded fit with the second threaded hole 10 through a second threaded post 9. Through the above threaded fit, it is ensured to realize the reliable fixed installation of the micrometer measuring head 11.
[0029] Further, the distance L between the end of the measuring extension rod 1 and the end of the micrometer measuring head 11 is equal to the inner hole size of the cylinder liner. Through the above dimensional fit, it is ensured that the size just matches the inner hole size of the cylinder liner.
[0030] Further, the measuring extension rod 1 and the micrometer measuring head 11 are arranged coaxially. Through the above coaxial arrangement, it is ensured to be subsequently matched with the inner hole, and thus the measurement accuracy is ensured.
[0031] The working process and principle of the present utility model:
[0032] 1. Design and manufacture a special tool as Figure 1 shown. According to the outer diameter Φ220mm of the boring bar, design the inner diameter Φ258mm of the tooling assembly, design the assembly screw holes M12 at both ends, design and manufacture one measuring extension rod, and prepare one 50 measuring head.
[0033] 2. Install the measuring extension rod 1 at one end and the 50 micrometer measuring head 11 at the other end, and the combination is just 400mm.
[0034] 3. Complete the measurement using the measuring tooling.
[0035] 4. The inner hole machining is completed.
Claims
1. A measuring tool for the inner hole size of a cylinder liner, characterized in that It includes an arc-shaped handle (12), and two ends of the arc-shaped handle (12) are provided with a first vertical rod (5) and a second vertical rod (8) arranged vertically; a first threaded hole (3) is machined on the first vertical rod (5), and a second threaded hole (10) is machined on the second vertical rod (8); a measuring extension rod (1) is fixed outside the part where the first threaded hole (3) is located, and a micrometer measuring head (11) is fixed outside the part where the second threaded hole (10) is located.
2. The inner hole size measuring tooling for a cylinder liner according to claim 1, characterized in that The arc-shaped handle (12) includes an inner arc surface (6) and an outer arc surface (7).
3. The inner hole size measuring tooling for a cylinder liner according to claim 1, characterized in that, The end of the measuring extension rod (1) is provided with an arc tip (2), and the measuring extension rod (1) forms a threaded fit with the first threaded hole (3) through a first threaded post (4) provided at the other end.
4. The inner hole size measuring tooling for a cylinder liner according to claim 1, characterized in that, The micrometer measuring head (11) forms a threaded fit with the second threaded hole (10) through a second threaded post (9).
5. The inner hole size measuring tooling for a cylinder liner according to claim 1, characterized in that, The distance L between the end of the measuring extension rod (1) and the end of the micrometer measuring head (11) is equal to the inner hole size of the cylinder liner.
6. The inner hole size measuring tooling for a cylinder liner according to claim 1, wherein, The measuring extension rod (1) and the micrometer measuring head (11) are arranged coaxially.