A ring rolling machine with a diameter measuring device
By designing a diameter measuring device with components such as a chute, slider, roller, and scale, the problem of multiple fixed workpiece measurements in the existing technology has been solved, enabling rapid measurement of the inner and outer diameters of the workpiece and improving the working efficiency of the ring rolling machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHENG YANG PETROLEUM MASCH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-05-26
AI Technical Summary
The existing diameter measuring device for ring rolling machines requires multiple fixations of the workpiece for measurement, which increases processing time and reduces work efficiency.
A diameter measuring device was designed, comprising a slide, a slider, a roller, a scale, a connecting rod, a connecting block, a cross, and an electric telescopic rod. The electric telescopic rod drives the cross to move the slider and roller, thereby achieving rapid fixation of the workpiece and simultaneous measurement of its inner and outer diameters.
This reduces workpiece measurement time, improves the efficiency of the diameter measuring device for the ring rolling machine, and simplifies the operation process.
Smart Images

Figure CN224285752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ring rolling machines, and in particular to a diameter measuring device for ring rolling machines. Background Technology
[0002] A ring rolling mill is a specialized piece of equipment used for rolling ring forgings. It primarily uses a rotary rolling process to shape billets into ring-shaped parts with specific dimensions, shapes, and properties. It is widely used in machinery manufacturing, aerospace, energy, and automotive industries, and is one of the core pieces of equipment in ring part production.
[0003] An existing diameter measuring device for a ring rolling machine, with publication number CN219757173U, allows for convenient and rapid measurement of the outer and inner diameters of rings by installing a measuring seat on the rolling machine, reducing manual operation and improving safety. However, this device requires the workpiece to be first pressed against its inner wall on both sides, then fixed at the top and bottom. After the rolling machine completes one revolution of the workpiece, it is removed from the machine for measurement, and then reinstalled for further processing. This necessitates multiple measurements during the processing, requiring operators to repeatedly fix the workpiece in place. This increases the measurement time during ring rolling and reduces the efficiency of the diameter measuring device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a diameter measuring device for a ring rolling machine.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A diameter measuring device for a ring rolling machine includes a worktable, a slide groove, a first slider, a roller, a second slider, a cross groove, a first scale, a connecting rod, a connecting block, a cross, an electric telescopic rod, a second scale, and a bracket. The slide groove is slidably connected to four first sliders. The slide groove is cross-shaped. The lower end of each first slider is rotatably connected to two connecting rods via bearings. The other ends of every two connecting rods are rotatably connected to a connecting block via bearings. The lower ends of all four connecting blocks are fixedly connected to the cross. The lower end of the cross is fixedly connected to the output end of the electric telescopic rod.
[0007] Preferably, the upper end of each first slider is rotatably connected to the corresponding roller via a bearing, the upper end of each roller is rotatably connected to the corresponding second slider via a bearing, and each second slider is slidably connected to a cross groove, the lower end of which is inserted into the surface of the worktable.
[0008] Preferably, a plurality of first scales are mounted on the upper surface of the cross groove.
[0009] Preferably, the chute is located in the middle of the worktable.
[0010] Preferably, the outer walls of all four rollers are in contact with the workpiece.
[0011] Preferably, a second scale is installed on the upper surface of the workbench.
[0012] Preferably, the lower ends of the four brackets are in contact with the ground, and the end of the electric telescopic rod is in contact with the ground.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. Using a set of sliding grooves, first sliders, rollers, second sliders, cross grooves, first scales, connecting rods, connecting blocks, crosses, and electric telescopic rods, when the inner diameter of a workpiece needs to be measured, the operator first places the workpiece on the worktable, then connects the external power supply to the electric telescopic rod and starts it. The electric telescopic rod drives the cross to move downwards, the cross to move the connecting block downwards, the connecting block to move the lower end of the connecting rod, and the other end of the connecting rod to move the first slider. All four first sliders move simultaneously within the sliding grooves, driving the corresponding rollers above them to move. The rollers then drive the second slider above them to move within the cross grooves. When the surface of the roller contacts the inner wall of the workpiece, the electric telescopic rod stops working. At this point, the operator reads the value of the workpiece's inner wall dimension by observing the position of the second slider on the first scale. This method allows all four rollers to move simultaneously to fix the workpiece, eliminating the need for multiple adjustments and reducing the time required for workpiece measurement, thus improving the working efficiency of the diameter measuring device for the ring rolling machine.
[0015] 2. With the set worktable and second scale, after the workpiece is fixed on the worktable in the above manner, the outer diameter of the workpiece can be read by the second scale. This allows the inner diameter of the workpiece to be measured at the same time as the outer diameter, which improves the working effect of the diameter measuring device for the ring rolling machine. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a diameter measuring device for a ring rolling machine proposed in this utility model;
[0017] Figure 2 for Figure 1 A diagram showing the view from the right.
[0018] Figure 3 for Figure 2 A diagram showing the view from below;
[0019] Figure 4 for Figure 2 A magnified view of part A in the middle;
[0020] Figure 5 for Figure 3 A magnified view of part B in the middle.
[0021] In the diagram: 1. Workbench; 2. Slide rail; 3. First slider; 4. Roller; 5. Second slider; 6. Cross groove; 7. First scale; 8. Connecting rod; 9. Connecting block; 10. Cross; 11. Electric telescopic rod; 12. Second scale; 13. Support. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example 1, referring to Figures 1 to 5A diameter measuring device for a ring rolling machine includes a worktable 1, a slide groove 2, a first slider 3, a roller 4, a second slider 5, a cross groove 6, a first scale 7, a connecting rod 8, a connecting block 9, a cross 10, an electric telescopic rod 11, a second scale 12, and a bracket 13. The slide groove 2 is slidably connected to four first sliders 3, which slide within the slide groove 2. The slide groove 2 is cross-shaped, allowing all four first sliders 3 to move simultaneously. The first sliders 3 are rectangular, ensuring they slide within the slide groove 2 without changing direction. Each... The lower end of the first slider 3 is rotatably connected to two connecting rods 8 via bearings. The connecting rods 8 drive the first slider 3 to move. The other end of each pair of connecting rods 8 is rotatably connected to a connecting block 9 via bearings. The connecting block 9 drives the connecting rod 8 to move. The lower ends of all four connecting blocks 9 are fixedly connected to the cross 10. The cross 10 drives the connecting blocks 9 to move. The lower end of the cross 10 is fixedly connected to the output end of the electric telescopic rod 11. The electric telescopic rod 11 drives the cross 10 to move. The model of the electric telescopic rod 11 is selected according to actual needs, and only those that meet the work requirements are selected. When it is necessary to measure the inner diameter of a workpiece, the operator first places the workpiece on the workbench 1, then connects the external power supply of the electric telescopic rod 11 and starts the electric telescopic rod 11. The electric telescopic rod 11 drives the cross 10 to move downward, the cross 10 drives the connecting block 9 to move downward, the connecting block 9 drives the lower end of the connecting rod 8 to move, and the other end of the connecting rod 8 drives the first slider 3 to move. The four first sliders 3 move simultaneously in the slide groove 2. The first sliders 3 drive the corresponding rollers 4 above to move, and the rollers 4 drive the second sliders 5 above to move in the cross groove 6. When the surface of the rollers 4 contacts the inner wall of the workpiece, the electric telescopic rod 11 stops working. At this time, the operator reads the position of the second slider 5 on the first scale 7 to know the inner wall size of the workpiece. In this way, the four rollers 4 can move simultaneously to fix the workpiece, and the workpiece can be measured without multiple adjustments. This reduces the time required for workpiece measurement and improves the working efficiency of the diameter measuring device for the ring rolling machine.
[0024] In this embodiment, the upper end of each first slider 3 is rotatably connected to the corresponding roller 4 via a bearing. The roller 4 rotates on the first slider 3. The upper end of each roller 4 is rotatably connected to the corresponding second slider 5 via a bearing. The second slider 5 rotates on the roller 4. Each second slider 5 is slidably connected to the cross groove 6. The second slider 5 slides in the cross groove 6. The lower end of the cross groove 6 is inserted into the surface of the worktable 1. The cross groove 6 can be replaced on the worktable 1 to facilitate the placement of workpieces of different sizes. Multiple first scales 7 are installed on the upper surface of the cross groove 6. The first scales 7 can measure the inner diameter of the workpiece. The slide groove 2 is opened in the middle of the worktable 1. The outer walls of the four rollers 4 are in contact with the workpiece. A second scale 12 is installed on the upper surface of the worktable 1. The second scale 12 can measure the outer wall of the workpiece. Four supports 13 are installed at the lower end of the worktable 1. The lower ends of the four supports 13 are in contact with the ground. The end of the electric telescopic rod 11 is in contact with the ground.
[0025] The working principle of this embodiment is as follows: In use, the operator first places the workpiece on the workbench 1, then connects the external power supply of the electric telescopic rod 11 and starts the electric telescopic rod 11. The electric telescopic rod 11 drives the cross 10 to move downward, the cross 10 drives the connecting block 9 to move downward, the connecting block 9 drives the lower end of the connecting rod 8 to move, and the other end of the connecting rod 8 drives the first slider 3 to move. The four first sliders 3 move simultaneously in the slide groove 2. The first sliders 3 drive the corresponding rollers 4 above to move, and the rollers 4 drive the second sliders 5 above to move in the cross groove 6. When the surface of the rollers 4 contacts the inner wall of the workpiece, the electric telescopic rod 11 stops working. At this time, the operator reads the position of the second slider 5 on the first scale 7 to know the inner wall size of the workpiece. At the same time, the outer diameter of the workpiece can be measured by the second scale 12, thereby completing the diameter measurement of the workpiece of the ring rolling machine.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A diameter measuring device for ring rolling machine, comprising a workbench (1), a sliding groove (2), a first sliding block (3), a roller (4), a second sliding block (5), a cross slot (6), a first scale (7), a connecting rod (8), a connecting block (9), a cross (10), an electric telescopic rod (11), a second scale (12) and a bracket (13), characterized in that, The chute (2) is slidably connected with four first sliding blocks (3), the chute (2) is cross-shaped, the lower end of each first sliding block (3) is rotatably connected with two connecting rods (8) through bearings, the other end of each connecting rod (8) is rotatably connected with a connecting block (9) through a bearing, the lower end of each connecting block (9) is fixedly connected with a cross (10), and the lower end of the cross (10) is fixedly connected with the output end of the electric telescopic rod (11).
2. A ring rolling mill diameter measuring device according to claim 1, wherein The upper end of each first sliding block (3) is rotatably connected with a corresponding roller (4) through a bearing, the upper end of each roller (4) is rotatably connected with a corresponding second sliding block (5) through a bearing, each second sliding block (5) is slidably connected with a cross slot (6), and the lower end of the cross slot (6) is inserted into the surface of the workbench (1).
3. A ring rolling mill diameter measuring device as claimed in claim 1, wherein, A plurality of first scales (7) are installed on the upper surface of the cross slot (6).
4. The device according to claim 1, wherein The chute (2) is arranged in the middle of the workbench (1).
5. The device according to claim 1, wherein The outer walls of the four rollers (4) are in contact with the workpiece.
6. The device according to claim 1, wherein A second scale (12) is installed on the upper surface of the workbench (1).
7. The device according to claim 1, wherein Four supports (13) are installed at the lower end of the workbench (1), the lower ends of the four supports (13) are in contact with the ground, and the end of the electric telescopic rod (11) is in contact with the ground.