A fixing device for overhauling parts of a rolling mill

Abstract

The utility model relates to the technical field of the maintenance of steel rolling machinery parts, and particularly relates to a fixing device for the maintenance of steel rolling machinery parts. The device comprises a fixing mechanism and a pre-fixing mechanism. The fixing mechanism comprises a support table, symmetrically arranged synchronous hydraulic cylinders and a main clamping plate. The pre-fixing mechanism comprises a contact plate, a connecting column, a clamping piece, a return spring, a movable side plate, an auxiliary clamping plate, a vertical plate, a tension spring and a clamping rod. The clamping piece is provided with a connecting plate, a through slot and a clamping groove. The roller to be maintained is placed on the contact plate. The gravity of the roller drives the connecting column and the clamping piece to move downward, aligns the through slot with the clamping rod, moves the movable side plate by the tension spring, and realizes pre-fixing by clamping the clamping rod into the clamping groove. Then, the main clamping plate is pushed by the synchronous hydraulic cylinders to clamp the roller, forming double fixing. The device does not need manual alignment, completes preliminary positioning quickly, improves efficiency, avoids roller deviation, solves the problem of repeated adjustment in traditional manual placement, and is convenient for subsequent precise calibration.

Description

Technical Field

[0001] This utility model relates to the field of maintenance technology for rolling mill machinery parts, and in particular to a fixing device for maintenance of rolling mill machinery parts. Background Technology

[0002] Overhauling steel rolling mill parts refers to the regular inspection, maintenance, and repair of key components in steel rolling equipment to ensure normal operation and extend the service life of the equipment. During the overhaul, it is necessary to focus on checking for wear, deformation, or cracks in the parts, and use special fixing devices (such as clamps, locating pins, or hydraulic locking mechanisms) to firmly fix the parts to prevent displacement or damage during disassembly or assembly.

[0003] When overhauling the rolls on rolling mill machinery, a fixing device is needed to secure them to ensure stability during maintenance. However, after the rolls are roughly placed manually, repeated adjustments are required to meet the assembly accuracy, which is time-consuming and labor-intensive, affecting the maintenance efficiency of the rolls. Utility Model Content

[0004] To address the technical problems of low precision, time-consuming and labor-intensive transmission and placement of rolling mill rolls, this utility model provides a fixing device for the maintenance of rolling mill parts.

[0005] Therefore, the present invention provides the following technical solution: A fixing device for the maintenance of rolling mill parts includes a fixing mechanism and a pre-fixing mechanism. The fixing mechanism includes a support platform, synchronous hydraulic cylinders, and a main clamping plate. The synchronous hydraulic cylinders are symmetrically arranged on the top of the support platform, and the main clamping plate is fixedly installed on the output end of the synchronous hydraulic cylinders. The pre-fixing mechanism includes preliminary fixing components, which include contact plates, connecting columns, snap-fit ​​components, return springs, movable side plates, auxiliary clamping plates, vertical plates, tension springs, and locking rods. Two contact plates are arranged on the top of the support platform, and the connecting columns are fixedly installed at the bottom of the contact plates and penetrate the support platform. The snap-fit ​​components are connected to the bottom of the connecting columns. The return spring is sleeved on the connecting columns. Its top end is fixedly connected to the bottom of the support platform, and its bottom end is fixedly connected to the top of the snap-fit ​​component; the movable side plate is slidably installed on the support platform, and the top of the support platform has a limiting groove to cooperate with the movement of the movable side plate; the auxiliary clamping plate is fixedly installed on the movable side plate; the vertical plate is fixedly installed on the bottom of the support platform, and one end of the tension spring is fixedly connected to the vertical plate, and the other end is fixedly connected to the movable side plate; the snap-fit ​​component includes a connecting plate, a through groove, and a snap-fit ​​slot. The connecting plate is fixedly installed on the bottom of the connecting column, and two through grooves are opened on the surface of the connecting plate for accommodating the insertion of the snap-fit ​​slot. The snap-fit ​​slot is opened at the bottom of the cavity of the through groove for snapping the end of the snap-fit ​​slot.

[0006] Furthermore, the top of the support platform is provided with a storage groove, the size of which is adapted to the size of the contact plate, for placing the contact plate.

[0007] Furthermore, a push-button switch is embedded inside the storage slot, which is used to control the start and stop of the synchronous hydraulic cylinder.

[0008] Furthermore, it also includes a positioning rod and a positioning hole. The positioning rod is fixedly installed inside the limiting groove, and the positioning hole is opened on the surface of the movable side plate for use with the positioning rod.

[0009] Furthermore, it also includes a support plate, which is mounted on a support platform, and a synchronous hydraulic cylinder is mounted on the support plate.

[0010] Furthermore, a support leg is installed at the bottom of the support platform.

[0011] Advantages and positive effects of this utility model: The roll to be inspected is placed on the two contact plates at the top of the support platform. The weight of the roll presses the contact plates downwards, causing the bottom connecting column and locking component to move down synchronously. During the downward movement of the locking component, the through slot on its connecting plate aligns with the locking rod on the movable side plate. The tension spring pulls the movable side plate along the limiting groove towards the roll. After the locking rod inserts into the through slot, it locks into the bottom locking groove, achieving locking and positioning. This, in turn, drives the auxiliary clamping plate to clamp the roll, completing the initial pre-fixing. After the pre-fixing is completed, the symmetrical synchronous hydraulic cylinders at the top of the support platform are activated simultaneously. The output end of the hydraulic cylinder pushes the main clamping plate closer to the roll, and the clamping force of the main clamping plate stably locks the roll, forming a double fixation.

[0012] The mechanical snap-fit ​​structure enables rapid pre-fixation without manual alignment, significantly improving the initial positioning efficiency after the rolls are placed. It also prevents roll misalignment during subsequent clamping, solving the problem that traditional manual rough placement of rolls requires repeated adjustments to meet assembly accuracy. This achieves the effect of initial roll fixation, facilitating subsequent precision calibration. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This utility model provides an overall structural schematic diagram of a fixing device for the maintenance of rolling mill parts.

[0015] Figure 2 A schematic diagram of a support platform structure for a fixing device for the maintenance of rolling mill parts provided by this utility model.

[0016] Figure 3 This is a preliminary structural diagram of a fixing device for the maintenance of rolling mill parts provided by this utility model.

[0017] Figure 4 This utility model provides a schematic diagram of the clip structure of a fixing device for the maintenance of rolling mill parts.

[0018] In the diagram: 100, fixing mechanism; 110, support platform; 120, synchronous hydraulic cylinder; 130, main clamping plate; 140, storage slot; 150, push-button switch; 160, limit slot; 200, pre-fixing mechanism; 210, preliminary fixing component; 211, contact plate; 212, connecting column; 213, snap-fit ​​component; 214, movable side plate; 215, auxiliary clamping plate; 216, tension spring; 217, locking rod; 218, return spring; 219, positioning rod; 220, vertical plate; 221, positioning hole; 222, support plate; 223, support leg; 2131, connecting plate; 2132, through slot; 2133, locking slot. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] A fixing device for the maintenance of rolling mill parts, such as Figure 1 As shown, the system includes a fixing mechanism 100 and a pre-fixing mechanism 200. The fixing mechanism 100 includes a support platform 110, a synchronous hydraulic cylinder 120, and a main clamping plate 130. Support legs 223 are installed at the bottom of the support platform 110. The synchronous hydraulic cylinder 120 is symmetrically arranged on the top of the support platform 110 via a support plate 222, and the main clamping plate 130 is fixedly installed on the output end of the synchronous hydraulic cylinder 120.

[0021] like Figure 3 As shown, the pre-fixing mechanism 200 includes a preliminary fixing component 210, which is used to initially limit the position of the roll, improve the stability of the roll fixing position, and solve the problem that after the traditional manual rough placement of the roll, repeated adjustments are needed to meet the assembly accuracy. This achieves the effect of preliminary fixing of the roll, which is convenient for subsequent precision calibration.

[0022] like Figure 3-4As shown, the initial fixing component 210 includes a contact plate 211, a connecting post 212, a snap-fit ​​component 213, a return spring 218, a movable side plate 214, an auxiliary clamping plate 215, a vertical plate 220, a tension spring 216, and a locking rod 217. Two contact plates 211 are disposed on the top of the support platform 110. The connecting post 212 is fixedly installed on the bottom of the contact plate 211 and penetrates the support platform 110. The snap-fit ​​component 213 is connected to the bottom of the connecting post 212. The return spring 218 is sleeved on the connecting post 212, with its top end fixedly connected to the bottom of the support platform 110 and its bottom end fixedly connected to the top of the snap-fit ​​component 213. The movable side plate 214 is slidably installed on the support platform 110, and a mating part is provided on the top of the support platform 110. The movable side plate 214 has a limiting groove 160 for movement; the auxiliary clamping plate 215 is fixedly installed on the movable side plate 214; the vertical plate 220 is fixedly installed on the bottom of the support platform 110; one end of the tension spring 216 is fixedly connected to the vertical plate 220, and the other end is fixedly connected to the movable side plate 214; the locking rod 217 is fixedly installed on the movable side plate 214; the locking member 213 includes a connecting plate 2131, a through groove 2132, and a locking groove 2133. The connecting plate 2131 is fixedly installed on the bottom of the connecting column 212. The two through grooves 2132 are opened on the surface of the connecting plate 2131 for the locking rod 217 to be inserted. The locking groove 2133 is opened at the bottom of the cavity of the through groove 2132 for locking the end of the locking rod 217.

[0023] The return spring 218 is used to automatically reset the contact plate 211 upward. When the roller disengages from the surface of the contact plate 211, it drives the snap-fit ​​213 to reset upward so that the end of the snap-fit ​​rod 217 can be snapped onto the snap-fit ​​213.

[0024] like Figure 2 As shown, a storage groove 140 is provided on the top of the support platform 110. The size of the storage groove 140 is adapted to the size of the contact plate 211 for placing the contact plate 211. A push switch 150 is embedded inside the storage groove 140, which is used to control the start and stop of the synchronous hydraulic cylinder 120. The storage groove 140 is used to store the contact plate 211, so that the roll can be fully placed on the top of the support platform 110, improving the support stability of the roll. The output end of the push switch 150 is electrically connected to the input end of the synchronous hydraulic cylinder 120. After the contact plate 211 is completely pressed into the storage groove 140 by the roll, the contact plate 211 presses the push switch 150, causing the push switch 150 to activate the synchronous hydraulic cylinder 120 to drive the main clamping plate 130 to fix the roll, thereby achieving the purpose of automatically fixing the roll.

[0025] like Figure 3As shown, it also includes a positioning rod 219 and a positioning hole 221. The positioning rod 219 is fixedly installed inside the limiting groove 160, and the positioning hole 221 is opened on the surface of the movable side plate 214 for use in conjunction with the positioning rod 219. The cooperation between the positioning rod 219 and the positioning hole is used to limit the movement of the movable side plate 214, improve the movement stability of the movable side plate 214, and avoid affecting the pre-fixing effect of the auxiliary clamping plate 215 on the roll.

[0026] Working principle: When in use, the roller is placed on the top of the support platform 110, so that the roller presses against the contact plate 211. The contact plate 211 is stored inside the storage groove 140. The contact plate 211 drives the connecting column 212 and the connecting plate 2131 to move down, so that the end of the clamping rod 217 disengages from the inside of the clamping groove 2133. When the end of the clamping rod 217 disengages from the inside of the clamping groove 2133, under the elastic force of the tension spring 216, the two movable side plates 214 are pulled in the direction of approach. Then, the two movable side plates 214 drive the auxiliary clamping plate 215 to move and initially limit the roller. After the contact plate 211 is stored inside the storage slot 140, it will press the push switch 150. The push switch 150 will activate the synchronous hydraulic cylinder 120, which will drive the main clamping plate 130 to clamp and fix the roll.

[0027] In summary, this utility model achieves the initial positioning of the rolls through the initial fixing component 210 in the pre-fixing mechanism 200, effectively improving the stability of the roll placement position, avoiding the tedious operation of repeated adjustments after traditional manual placement, and facilitating the subsequent synchronous hydraulic cylinder 120 to drive the main clamping plate 130 for clamping, ensuring the reliability of fixing during the maintenance process.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixing device for the maintenance of rolling mill parts, characterized in that, It includes a fixing mechanism (100) and a pre-fixing mechanism (200); the fixing mechanism (100) includes a support platform (110), a synchronous hydraulic cylinder (120) and a main clamping plate (130), the synchronous hydraulic cylinder (120) is symmetrically arranged on the top of the support platform (110), and the main clamping plate (130) is fixedly installed on the output end of the synchronous hydraulic cylinder (120); the pre-fixing mechanism (200) includes a preliminary fixing component (210), the preliminary fixing component (210) includes a contact plate (211) and a connecting column (212). The system includes a snap-fit ​​connector (213), a return spring (218), a movable side plate (214), an auxiliary clamping plate (215), a vertical plate (220), a tension spring (216), and a locking rod (217); two contact plates (211) are set on the top of the support platform (110), and a connecting column (212) is fixedly installed on the bottom of the contact plate (211) and passes through the support platform (110); the snap-fit ​​connector (213) is connected to the bottom of the connecting column (212); the return spring (218) is sleeved on the connecting column (212), and its top end is connected to the bottom of the connecting column (212). The bottom of the support platform (110) is fixedly connected, and the bottom end is fixedly connected to the top of the snap-fit ​​part (213); the movable side plate (214) is slidably installed on the support platform (110), and the top of the support platform (110) is provided with a limiting groove (160) to cooperate with the movement of the movable side plate (214); the auxiliary clamping plate (215) is fixedly installed on the movable side plate (214); the vertical plate (220) is fixedly installed on the bottom of the support platform (110), and one end of the tension spring (216) is fixedly connected to the vertical plate (220), and the other end is fixedly connected to the movable side plate (213). 214) Fixed connection; the clamp rod (217) is fixedly installed on the movable side plate (214); the clamping part (213) includes a connecting plate (2131), a through groove (2132) and a clamping groove (2133). The connecting plate (2131) is fixedly installed on the bottom of the connecting column (212). Two through grooves (2132) are opened on the surface of the connecting plate (2131) for the clamp rod (217) to be inserted. The clamping groove (2133) is opened at the bottom of the cavity of the through groove (2132) for clamping the end of the clamp rod (217).

2. The fixing device for maintenance of rolling mill parts according to claim 1, characterized in that, The support platform (110) has a storage groove (140) on its top. The size of the storage groove (140) is adapted to the size of the contact plate (211) and is used to place the contact plate (211).

3. A fixing device for the maintenance of rolling mill parts according to claim 2, characterized in that, The storage slot (140) is equipped with a push switch (150), which is used to control the start and stop of the synchronous hydraulic cylinder (120).

4. A fixing device for the maintenance of rolling mill parts according to claim 1, characterized in that, It also includes a positioning rod (219) and a positioning hole (221). The positioning rod (219) is fixedly installed inside the limiting groove (160), and the positioning hole (221) is opened on the surface of the movable side plate (214) for use in conjunction with the positioning rod (219).

5. A fixing device for the maintenance of rolling mill parts according to claim 1, characterized in that, It also includes a support plate (222), which is mounted on a support platform (110), and a synchronous hydraulic cylinder (120) is mounted on the support plate (222).

6. A fixing device for the maintenance of rolling mill parts according to claim 1, characterized in that, The support platform (110) is equipped with a support leg (223) at its bottom.

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