A stroke measuring device applied to a clutch of a hot die forging press

CN224744209UActive Publication Date: 2026-09-11FIRST HEAVY IND GRP TIANJIN HEAVY IND CO LTD +1
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Patent Information

Application Number
CN202521841650.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-09-11
Estimated Expiration
2035-08-28

AI Technical Summary

Technical Problem

但是,这种简易的行程测量装置在使用时需要人工全程操作,且不易读取测量数值,会造成测量操作不方便同时更容易引起较大的测量误差

Benefits of technology

[0012]本实用新型具有的优点和积极效果是:

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Abstract

The utility model discloses a kind of stroke measuring devices applied to hot die forging press clutch, install on clutch cylinder body, including barrel, pull rod, measuring rod, baffle, spring and upper cover, barrel is installed on clutch cylinder body, the through-hole one for measuring rod is passed in barrel bottom, observation window is opened in barrel, scale is installed in observation window, upper cover is covered in barrel top, the through-hole two for measuring rod is passed in upper cover and is opened;Pull rod is located in barrel, pull rod one end is connected with barrel bottom, the other end is connected with upper cover;Baffle is set on measuring rod, spring is set on the measuring rod between baffle and upper cover, measuring rod one end passes through upper cover, the other end passes through barrel bottom and clutch cylinder body, so that measuring rod other end face is always adhered to the plane on clutch piston under the action of spring. The utility model can increase the convenience of measurement operation, reduce the workload of measurement personnel, can more conveniently, accurately read measurement data.
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Description

Technical Field

[0001] This utility model belongs to the technical field of hot forging press, and in particular relates to a stroke measuring device for the clutch of a hot forging press. Background Technology

[0002] Currently, the commonly known stroke measuring device for hot forging presses consists of a measuring rod and a guide pin. The measuring rod needs to be manually pushed into the clutch cylinder to make its end face fit against the piston. The actual clutch stroke is obtained by measuring the displacement of the measuring rod with a ruler, and an average result is obtained through multiple experiments. However, this simple stroke measuring device requires manual operation throughout the entire process, and the measured values ​​are difficult to read, making the measurement operation inconvenient and more prone to significant measurement errors. Utility Model Content

[0003] To make the measurement of the clutch stroke of a hot forging press more convenient and accurate, and to reduce the influence of human factors on the measurement data, this utility model provides a stroke measuring device for the clutch of a hot forging press. This measuring device not only increases the convenience of the measurement operation and reduces the workload of the measuring personnel, but also allows for more convenient and accurate reading of the measurement data.

[0004] This invention is implemented as follows: a stroke measuring device for a clutch of a hot forging press. The measuring device is installed on the clutch cylinder body of the hot forging press and includes a cylinder, a pull rod, a measuring rod, a baffle, a spring, and a top cover. The cylinder is installed on the clutch cylinder body, and its bottom has a through hole for the measuring rod to pass through. An observation window with a graduated scale is provided on the cylinder body. The top of the cylinder is covered with a top cover, which has a second through hole for the measuring rod to pass through. The pull rod is located inside the cylinder body, with one end connected to the bottom of the cylinder body and the other end connected to the top cover. A baffle is provided on the measuring rod, and a spring is fitted on the measuring rod between the baffle and the top cover. One end of the measuring rod passes through the top cover, and the other end passes through the bottom of the cylinder body and the clutch cylinder body, so that under the action of the spring, the end face of the other end of the measuring rod is always in contact with the plane on the clutch piston.

[0005] In the above technical solution, preferably, the measuring rod has an external thread at one end where the baffle is set, and the baffle has an internal thread through hole at the center that mates with the external thread of the measuring rod. The baffle is threadedly connected to the measuring rod and abuts against the back tightening nut.

[0006] In the above technical solution, preferably, the baffle has a through hole three, through which the pull rod passes.

[0007] In the above technical solution, preferably, the cross-section of the baffle is an isosceles trapezoid, and the upper surface of the baffle is close to the spring side, serving as a pointer.

[0008] In the above technical solution, preferably, the spring is sleeved between the cylinder and the pull rod, with one end of the spring abutting against the baffle and the other end abutting against the top cover.

[0009] In the above technical solution, preferably, the cylinder is welded together from a steel pipe and a T-shaped base plate, and the bottom of the base plate is provided with an external thread that mates with the clutch cylinder body.

[0010] In the above technical solution, preferably, one end of the pull rod is threaded to the bottom of the cylinder, and the other end passes through the top cover and is connected to the fastening nut, so that the top cover is firmly closed on the cylinder.

[0011] The baffle and measuring rod are connected by threads and tightened with a backing nut. The cylinder of the device is welded from a steel pipe to a base plate with external threads. After welding, observation windows are machined on both sides of the cylinder, and scales are installed in the windows. The pull rod is inserted into the cylinder and fixed by threads. The measuring rod and baffle are inserted into the cylinder through the through hole in the baffle and inserted into the pull rod. The spring is placed above the baffle, and the top cover is passed through the pull rod and closed with a nut. The clutch stroke measuring device is fixed to the clutch cylinder of the hot forging press by external threads on the bottom plate of the cylinder. Under the action of the spring, the end face of the measuring rod is always in contact with the plane on the clutch piston. When the clutch piston moves, it can drive the measuring rod and baffle to move. The change in position of the baffle can be read by the scale on the cylinder, thus obtaining the clutch stroke.

[0012] The advantages and positive effects of this utility model are: 1. The stroke measuring device of this utility model is connected to the clutch cylinder body through the external thread on the base plate and the end face is in contact with it. By installing a spring between the baffle and the top cover, the force of the spring on the baffle can keep the lower end face of the measuring rod in close contact with the clutch piston plane without manual operation. When the clutch piston moves, it drives the measuring rod and the baffle to move. By reading the corresponding scale on the scale on the cylinder before and after the baffle moves, the stroke of the clutch piston can be calculated. This not only reduces the workload of repeated experiments, making the measurement operation simpler and more convenient, and improving work efficiency, but also improves the accuracy of the measurement. Moreover, the scale of the device is easier to read and reduces the influence of human factors on the measurement results.

[0013] 2. This utility model fixes the clutch stroke measuring device to the clutch cylinder body of a hot forging press via an external thread on the bottom plate of the cylinder, thus measuring the piston stroke of the clutch. This utility model features a simple structure, light weight, convenient operation, and reliable measurement results, increasing the convenience and accuracy of hot forging clutch stroke measurement and effectively reducing measurement errors caused by human factors. Attached Figure Description

[0014] The technical solutions of the embodiments of this application will be further described in detail below with reference to the accompanying drawings. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0015] Figure 1 This is a front view of the stroke measuring device of this utility model; Figure 2 Yes, yes Figure 1 View from direction A; Figure 3 yes Figure 2 BB cross-sectional view.

[0016] In the diagram: 1. Clutch cylinder body; 2. Clutch piston; 3. Steel pipe; 4. Base plate; 5. Measuring rod; 6. Back tightening nut; 7. Baffle; 8. Spring; 9. Pull rod; 10. Fastening nut; 11. Top cover; 12. Scale; 13. Screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "one," "two," "three," "four," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "joining," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figures 1-3This utility model provides a stroke measuring device for a hot forging press clutch. The measuring device is installed on the clutch cylinder body 1 of the hot forging press and includes a cylinder, a pull rod 9, a measuring rod 5, a baffle 7, a spring 8, and a top cover 11. The cylinder is installed on the clutch cylinder body 1. The bottom of the cylinder has a through hole for the measuring rod 5 to pass through. An observation window is opened on the cylinder, and a scale 12 is installed at the observation window. The top cover 11 is closed on the top of the cylinder, and the top cover 11 has a through hole for the measuring rod 5 to pass through. The pull rod 9 is located inside the cylinder. One end of the pull rod 9 is connected to the bottom of the cylinder, and the other end is connected to the top cover 11. The measuring rod 5 is provided with a baffle 7. A spring 8 is sleeved on the measuring rod 5 between the baffle 7 and the top cover 11. One end of the measuring rod 5 passes through the top cover 11, and the other end passes through the bottom of the cylinder and the clutch cylinder body 1, so that under the action of the spring 8, the end face of the other end of the measuring rod 5 is always in contact with the plane on the clutch piston 2.

[0021] In a preferred embodiment, the measuring rod 5 has an external thread at one end where the baffle 7 is set. The baffle 7 has an internal thread through hole at its center that mates with the external thread of the measuring rod 5. The baffle 7 is threadedly connected to the measuring rod 5 and abuts against the backing nut 6. The baffle 7 and the measuring rod 5 are connected by threads and secured with the backing nut 6. The backing nut 6 prevents the baffle 7 from loosening and the position of the baffle 7 can be adjusted according to the measurement depth.

[0022] In a preferred embodiment, the baffle 7 has a through hole three, through which the pull rod 9 passes to prevent the baffle 7 and the measuring rod 5 from rotating during use.

[0023] In a preferred embodiment, the baffle 7 has an isosceles trapezoidal cross-section, with the upper surface of the baffle 7 near the spring 8, which can be used as a pointer. The upper surface of the baffle 7 forms an acute angle with the side surface, which can also be used as a pointer.

[0024] In a preferred embodiment, the spring 8 is sleeved between the cylinder and the pull rod 9, with one end of the spring 8 abutting against the baffle 7 and the other end abutting against the upper cover 11. The pull rod 9 is positioned appropriately so that it also serves as a guide for the spring 8, ensuring smooth operation of the measuring rod 5.

[0025] In a preferred embodiment, the cylinder is welded together from a steel pipe 3 and a T-shaped base plate 4. The bottom of the base plate 4 is provided with an external thread that mates with the clutch cylinder body 1. The cylinder is welded together from the steel pipe 3 and the base plate 4 with external threads. The cylinder can be fixed to the clutch cylinder body 1 of the hot forging press by means of the external thread on the base plate 4.

[0026] In a preferred embodiment, one end of the pull rod 9 is threaded to the bottom of the cylinder, and the other end passes through the top cover 11 and is connected to the fastening nut 10, so that the top cover 11 is firmly closed onto the cylinder. The pull rod 9 is located inside the cylinder, passes through the through hole on the baffle 7 and the top cover 11, one end is fixed to the bottom plate 4 of the cylinder by threads, and the other end is fastened by the fastening nut 10.

[0027] The specific installation process of this utility model is as follows: The steel pipe 3 is welded together with the base plate 4 with external threads to form the cylinder of the measuring device. Observation windows are machined on both sides of the cylinder, and the scale 12 is installed on the outside of the observation windows and fixed with screws 13. The pull rod 9 is installed inside the cylinder through the threaded hole on the base plate 4. The distance from the pull rod 9 to the center of the cylinder is calculated so that the pull rod 9 also serves as a guide for the spring 8. The upper part of the measuring rod 5 has external threads, and the lower end face is a plane with a reduced diameter. The baffle 7 has an internal threaded through hole in the center and an isosceles trapezoidal cross-section. The upper end face of the baffle 7 (i.e., the lower base of the isosceles trapezoid) is close to the spring 8, which can also serve as a pointer. The back-tightening nut 6 and the baffle 7 are screwed into the external threads of the measuring rod 5 in sequence, and the position of the baffle 7 is adjusted according to the depth of the measuring surface. After adjustment, the back-tightening nut 6 and the baffle 7 are tightened together. Both the base plate 4 and the top cover 11 have through holes for the measuring rod 5 to pass through. The measuring rod 5 and the baffle 7 are inserted into the cylinder through the through hole three on the baffle 7 and then into the pull rod 9. This prevents the baffle 7 and the measuring rod 5 from rotating during use. The spring 8 is then placed into the cylinder, the top cover 11 is installed, and the locking nut 10 is tightened to make the measuring device a single unit. Alternatively, the measuring rod 5 and the baffle 7 are first placed into the cylinder, then one end of the pull rod 9 is passed through the through hole three on the baffle 7 and threaded to the base plate 4. The spring 8 is then placed above the baffle 7, and the top cover 11 is passed through the pull rod 9 and tightened with the locking nut 10.

[0028] When measuring the clutch travel, the measuring device is connected to the clutch cylinder body 1 via the external thread on the base plate 4, ensuring that the lower end face of the base plate 4 is tightly fitted against the end face of the clutch cylinder body 1. At this time, the spring 8 acts on the baffle 7, ensuring that the lower end face of the measuring rod 5 remains in contact with the plane on the clutch piston 2. The scale 12 corresponding to the position on the upper end face of the baffle 7 can then be read. Controlling the clutch action causes the clutch piston 2 to move, driving the measuring rod 5 and the baffle 7. The scale 12 corresponding to the position on the upper end face of the baffle 7 is then read again. The travel of the clutch piston 2 can be obtained by calculating the difference between the two readings. Repeating the experiment multiple times ensures accurate results.

[0029] The lower end face of the measuring rod 5 of this utility model is always in close contact with the plane of the clutch piston 2. By reading the corresponding scale on the scale 12 on the cylinder before and after the movement of the baffle 7, the stroke of the clutch piston 2 can be calculated.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A stroke measuring device for a clutch of a hot swage press, characterized by: The measuring device is installed on the clutch cylinder body of a hot forging press and includes a cylinder, a pull rod, a measuring rod, a baffle, a spring, and a top cover. The cylinder is installed on the clutch cylinder body, and the bottom of the cylinder has a through hole for the measuring rod to pass through. An observation window is opened on the cylinder body, and a scale is installed at the observation window. The top of the cylinder body is covered with a top cover, and the top cover has a through hole for the measuring rod to pass through. The pull rod is located inside the cylinder body, with one end connected to the bottom of the cylinder body and the other end connected to the top cover. A baffle is installed on the measuring rod, and a spring is sleeved on the measuring rod between the baffle and the top cover. One end of the measuring rod passes through the top cover, and the other end passes through the bottom of the cylinder body and the clutch cylinder body, so that under the action of the spring, the end face of the other end of the measuring rod is always in contact with the plane on the clutch piston.

2. The stroke measuring device for a hot swage press clutch of claim 1, wherein: The measuring rod has an external thread at one end where the baffle is set, and the baffle has an internal thread through hole at the center that mates with the external thread of the measuring rod. The baffle is threaded onto the measuring rod and abuts against the back tightening nut.

3. The stroke measuring device for a hot swage press clutch of claim 1, wherein: The baffle has a through hole three, through which the pull rod passes.

4. The stroke measuring device for a hot swage press clutch of claim 1 wherein: The baffle has an isosceles trapezoidal cross-section, with the upper end of the baffle close to the spring side, and is used as a pointer.

5. The stroke measuring device for a hot swage press clutch of claim 1 wherein: The spring is sleeved between the cylinder and the pull rod, with one end of the spring abutting against the baffle and the other end abutting against the top cover.

6. The stroke measuring device for a hot swage press clutch of claim 1 wherein: The cylinder is composed of steel pipes and a T-shaped base plate welded together. The bottom of the base plate has an external thread that mates with the clutch cylinder body.

7. The stroke measuring device for a hot swage press clutch of claim 1 wherein: One end of the pull rod is threaded to the bottom of the cylinder, and the other end passes through the top cover and is connected to the fastening nut to securely cover the top cover onto the cylinder.