Cylinder positioning surface dislocation inspection device

Abstract

The utility model belongs to the technical field of dislocation inspection devices, and discloses a cylinder positioning surface dislocation inspection device, which comprises a magnetic gauge stand, a linear rail fixedly mounted on the upper surface of the magnetic gauge stand, a sliding block slidably connected to the outer wall of the linear rail, a connecting rod arranged on the upper surface of the sliding block, and an adjusting rod connected to one side of the connecting rod in a clamping manner. A mounting rod is hinged to the lower end of the adjusting rod, a dial indicator is rotationally connected to one side of the mounting rod, limiting blocks are fixedly mounted at the two ends of the linear rail, locking pins are in threaded connection with the upper surfaces of the sliding blocks, a sliding groove is formed in the upper surface of the connecting rod, and the locking pins are arranged in the sliding groove; the utility model provides a cylinder positioning surface dislocation inspection device, which is characterized in that during detection, a magnetic gauge stand is adsorbed on a cylinder lower half partition plate groove positioning surface, a sliding block is pushed to move on two misaligned surfaces, and the difference value of a dial gauge between two planes is read, namely the borrowing amount of the upper half and the lower half of the cylinder, so that the misalignment value of the positioning surface can be quickly and accurately detected; and any operation experience is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of misalignment detection devices, in particular to a cylinder positioning surface misalignment detection device. Background Art

[0002] The low-pressure sleeves of steam turbine cylinders are large in size and have high precision requirements. The low-pressure inner cylinders have many ring-holding stages. The internal stress is released during the machining process, which can easily cause irregular misalignment and deformation of the positioning surfaces of the upper and lower stages. Since the misalignment of the cylinder positioning surfaces is generally required to be within 0.1mm, and the misalignment position belongs to the inner edge of the ring groove, there is no fast and accurate detection method to judge the misalignment of each positioning surface. It all depends on experienced inspectors supplemented by feeler gauges and knife-edge gauges for inspection, which is inefficient and not intuitive.

[0003] In order to solve the above problems, a cylinder positioning surface misalignment inspection device is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems and provide a cylinder positioning surface misalignment detection device, comprising:

[0005] A magnetic meter base has a linear rail fixedly installed on its upper surface, a slider is slidably connected to the outer wall of the linear rail, a connecting rod is provided on the upper surface of the slider, an adjusting rod is clamped and connected to one side of the connecting rod, a mounting rod is hinged at the lower end of the adjusting rod, and a dial indicator is rotatably connected to one side of the mounting rod.

[0006] Through the above technical solution, during detection, the magnetic base is adsorbed on the positioning surface of the lower half partition groove of the cylinder, and the slider is pushed to move on the two sides with misalignment. The difference between the two planes read on the dial indicator is the misalignment value of the upper and lower halves of the cylinder. The misalignment value of the positioning surface can be detected quickly and accurately without any operating experience.

[0007] In a preferred embodiment, limit blocks are fixedly installed at both ends of the linear rail.

[0008] Through the above technical solution, a limit block is provided to prevent the slider from sliding out of the outer wall of the linear rail.

[0009] In a preferred embodiment, a locking pin is threadedly connected to the upper surface of the sliding block, a sliding groove is formed on the upper surface of the connecting rod, and the locking pin is arranged inside the sliding groove.

[0010] Through the above technical solution, by providing the slide groove and the locking pin, the connecting rod can be moved on the upper surface of the slider and quickly locked, which facilitates rapid adjustment of the position of the dial indicator.

[0011] In a preferred embodiment, a threaded hole adapted to fit the locking pin is provided on the upper surface of the slider.

[0012] In a preferred embodiment, the parallelism of the upper and lower surfaces of the magnetic stand is within 0.01 mm.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: the present invention provides a cylinder positioning surface misalignment inspection device.

[0014] During the test, the magnetic base is adsorbed on the positioning surface of the lower partition groove of the cylinder, and the slider is pushed to move on the two sides with misalignment. The difference between the two planes read by the dial indicator is the misalignment value of the upper and lower halves of the cylinder. It can quickly and accurately detect the misalignment value of the positioning surface without any operating experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the housing in the present invention;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a side view of the present utility model.

[0018] Markings in the figure: 1-magnetic base; 2-linear rail; 3-slider; 4-connecting rod; 5-adjusting rod; 6-mounting rod; 7-dial indicator; 8-limit block; 9-slide; 10-locking pin. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] The following will be combined Figure 1-3 A cylinder positioning surface misalignment inspection device according to an embodiment of the present utility model is described in detail.

[0021] Example:

[0022] A cylinder positioning surface misalignment detection device, comprising:

[0023] The magnetic meter base 1 has a linear track 2 fixedly mounted on its upper surface, and a slider 3 is slidably connected to the outer wall of the linear track 2. Limit blocks 8 are fixedly mounted on both ends of the linear track 2 to prevent the slider 3 from sliding out of the outer wall of the linear track 2. The parallelism of the upper and lower surfaces of the magnetic meter base 1 is within 0.01mm.

[0024] A connecting rod 4 is provided on the upper surface of the slider 3, and a locking pin 10 is threadedly connected to the upper surface of the slider 3. A sliding groove 9 is provided on the upper surface of the connecting rod 4, and a threaded hole adapted to the locking pin 10 is provided on the upper surface of the slider 3. The locking pin 10 is arranged inside the sliding groove 9. By providing the sliding groove 9 and the locking pin 10, the connecting rod 4 can be moved on the upper surface of the slider 3 and quickly locked, so that the position of the dial indicator 7 can be quickly adjusted.

[0025] One side of the connecting rod 4 is clamped and connected with an adjusting rod 5, and the lower end of the adjusting rod 5 is hinged with a mounting rod 6. One side of the mounting rod 6 is rotatably connected with a dial indicator 7. During detection, the magnetic base 1 is adsorbed on the positioning surface of the lower partition groove of the cylinder, and the slider 3 is pushed to move on the two sides with misalignment. The difference between the two planes of the dial indicator 7 is the misalignment amount of the upper and lower halves of the cylinder. It can quickly and accurately detect the misalignment value of the positioning surface without any operating experience.

[0026] Working principle:

[0027] During the test, the magnetic base 1 is adsorbed on the positioning surface of the lower partition groove of the cylinder, and the slider 3 is pushed to move on the two sides with misalignment. The difference between the two planes of the dial indicator 7 is the misalignment value of the upper and lower halves of the cylinder. It can quickly and accurately detect the misalignment value of the positioning surface without any operating experience.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cylinder positioning surface misalignment inspection device, characterized by: include: A magnetic meter base (1) has a linear rail (2) fixedly mounted on its upper surface, the outer wall of the linear rail (2) is slidably connected to a slider (3), a connecting rod (4) is provided on the upper surface of the slider (3), one side of the connecting rod (4) is clamped and connected to an adjusting rod (5), the lower end of the adjusting rod (5) is hinged to a mounting rod (6), and one side of the mounting rod (6) is rotatably connected to a dial indicator (7).

2. The cylinder positioning surface misalignment inspection device according to claim 1, characterized in that: Limiting blocks (8) are fixedly installed at both ends of the linear rail (2).

3. The cylinder positioning surface misalignment inspection device according to claim 1, characterized in that: The upper surface of the slider (3) is threadedly connected with a locking pin (10), the upper surface of the connecting rod (4) is provided with a sliding groove (9), and the locking pin (10) is arranged inside the sliding groove (9).

4. The cylinder positioning surface misalignment inspection device according to claim 1, characterized in that: The upper surface of the slider (3) is provided with a threaded hole adapted to the locking pin (10).

5. The cylinder positioning surface misalignment inspection device according to claim 1, characterized in that: The parallelism of the upper and lower surfaces of the magnetic meter base (1) is within 0.01 mm.

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