Auxiliary clamp for grinding tension roller of rolling mill

Abstract

The auxiliary clamp for grinding the tension roller of the rolling mill comprises a shaft and a roller sleeve which rotate relatively, the two ends of the shaft are respectively provided with an inner shaft end and an outer shaft end which extend out of the roller sleeve, the outer shaft end is in a non-rotary column shape, the inner shaft end is provided with an outer thread, and the inner shaft end is in threaded connection with a round nut. The two ends of the shaft are sleeved with retaining gaskets pressed by the round nuts respectively, the two ends of the shaft are further sleeved with fixing chucks pressed by the retaining gaskets respectively, first screw penetrating holes are distributed in the peripheries of the fixing chucks, and first threaded holes matched with the first screw penetrating holes are formed in the end face of the roller sleeve. A first locking screw which is in threaded connection with the first threaded hole penetrates through the first screw through hole; the outer shaft end is sleeved with a shifting fork, a center positioning hole for the outer shaft end to be inserted in a matched mode is formed in the shifting fork, at least one shifting fork rod extending in the axial direction is arranged on the shifting fork, and the shifting fork rod extends in the direction opposite to the roller sleeve. The auxiliary clamp has the advantages of being simple in structure, convenient to clamp and use, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and more specifically, to an auxiliary fixture for grinding a tension roller of a rolling mill. Background Art

[0002] During the production of aluminum plates and strips in the aluminum processing industry, the rolling mill rolls have defects such as scratches, bumps, roughness reduction, and fatigue hardening on the roll surface, which affect product quality. The roll surfaces of the defective rolls need to be reground to remove the surface hardening layer and surface defects, so as to meet the process requirements, surface roughness, and dimensional accuracy of the roll surface of the aluminum processing and ensure the quality requirements of aluminum plate and strip production.

[0003] The tension rollers commonly used on the market now adopt a through-shaft design, with bearings built into the ends of the tension roller sleeve (see Figure 3 ), compared with the integral tension roller bearings mounted on the shaft heads at both ends of the tension roller, the shaft and roller sleeve are a whole, and the tension roller with a separate structure of the shaft and roller sleeve is more complicated to disassemble, and because the shaft and roller sleeve are designed separately during grinding, the shaft and roller sleeve have relative movement during rotation, and the overall rotation of the tension roller during roller grinding cannot be achieved by fixing the shaft head. The shaft and roller sleeve need to be fixed together first, and the concentricity of both sides must be ensured to ensure the dimensional accuracy after grinding. Without considering the disassembly of the bearings and shafts (disassembly is complex and inefficient), if the expansion shaft is made as a tool, the cost will be relatively high and the overall effect will be poor. Accordingly, the utility model proposes an auxiliary clamp for grinding the tension roller of a rolling mill. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an auxiliary clamp for grinding the tension roller of a rolling mill. The auxiliary clamp has the characteristics of simple structure and convenient clamping and use.

[0005] In order to solve the above technical problems, the purpose of the present invention is achieved as follows: the present invention relates to an auxiliary clamp for grinding the tension roller of a rolling mill, comprising a shaft and a roller sleeve which are coaxially arranged and relatively rotated, wherein the two ends of the shaft respectively have an inner shaft end and an outer shaft end extending out of the roller sleeve, the outer shaft end is in a non-rotating cylindrical shape, the inner shaft end has an external thread, a round nut is threadedly connected to the inner shaft end, the two ends of the shaft are respectively covered with a back-stop washer pressed by the round nut, the two ends of the shaft are also respectively covered with a fixed chuck pressed by the back-stop washer, a first screw through-hole is arranged on the circumference of the fixed chuck, a first threaded hole matching the first screw through-hole is opened on the end surface of the roller sleeve, a first locking screw threadedly connected to the first threaded hole is passed through the first screw through-hole;

[0006] The outer shaft end is sleeved with a shift fork, which is provided with a central positioning hole for the outer shaft end to be matched and inserted into, and the shift fork is provided with at least one shift fork rod extending in the axial direction, and the shift fork rod extends back to the roller sleeve.

[0007] The utility model is further configured as follows: the shift fork is composed of two first shift fork splits and a second shift fork split that are symmetrically arranged in an upper and lower direction; a portion of the central positioning hole is opened on the first shift fork split, and the other end portion is opened on the second shift fork split; first ear plates are respectively provided on the left and right sides of the first shift fork split; second ear plates matching the first ear plates are respectively provided on the left and right sides of the second shift fork split; second screw through-holes are opened on the second ear plate and the first ear plate; second locking screws are passed through the second screw through-holes on the first ear plate and the second ear plate on the same side; a second locking nut is threadedly connected to the second locking screw.

[0008] The utility model is further configured as follows: the number of the shift fork rods is two or four.

[0009] The utility model is further configured as follows: the shift fork rods are circumferentially arranged on the shift fork; and the interval angles between two adjacent shift fork rods are equal.

[0010] To sum up, the utility model has the following beneficial effects: the auxiliary clamp for grinding the tension roller of the rolling mill involved in the utility model is clamped on the shaft end in the form of a coaxial sleeve, the shaft and the roller sleeve are connected by a fixed chuck, and then the fork and the upper fork rod are connected to the dial of the grinder to realize the overall rotation of the tension roller during grinding, which is convenient for grinding processing. It has a simple structure, is easy to clamp and use, has complete overall functions, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a partial structural diagram of the utility model;

[0013] Figure 3 It is a partial structural diagram of the utility model. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent claims of the present invention. Based on the examples in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0015] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See also Figures 1 to 3 As shown, an auxiliary fixture for grinding the tension roller of a rolling mill involved in this embodiment includes a shaft 1 and a roller sleeve 2 that are coaxially arranged and rotate relative to each other, the two ends of the shaft 1 respectively have an inner shaft end 3 and an outer shaft end 4 that extend out of the roller sleeve 2, the outer shaft end 4 is in a non-rotating cylindrical shape, the inner shaft end 3 has an external thread, and a round nut 5 is threadedly connected to the inner shaft end 3, and the two ends of the shaft 1 are respectively covered with a stop washer 6 pressed by the round nut, and the two ends of the shaft 1 are also respectively covered with a fixed chuck 7 pressed by the stop washer, and a first screw through-hole 8 is arranged on the circumference of the fixed chuck 7, and a first threaded hole 9 matching the first screw through-hole is opened on the end surface of the roller sleeve 2, and a first locking screw (not shown) threadedly connected to the first threaded hole 9 is passed through the first screw through-hole 8;

[0018] The outer shaft end 4 is sleeved with a shift fork 10 , which is provided with a central positioning hole 11 for the outer shaft end to be matched and inserted into. The shift fork 10 is provided with at least one shift fork rod 12 extending in the axial direction, and the shift fork rod 12 extends back to the roller sleeve 2 .

[0019] Furthermore, the shift fork 10 is composed of a first shift fork split 101 and a second shift fork split 102 that are symmetrically arranged in an upper and lower direction. A portion of the center positioning hole 11 is opened on the first shift fork split 101, and the other end portion is opened on the second shift fork split 102. The left and right sides of the first shift fork split 101 are respectively provided with a first ear plate 103, and the left and right sides of the second shift fork split 102 are respectively provided with a second ear plate 104 that matches the first ear plate. The second ear plate 104 and the first ear plate 103 are both provided with a second screw through-hole 105. A second locking screw 106 is inserted into the second screw through-hole on the first ear plate 103 and the second ear plate 104 on the same side, and a second locking nut 107 is threadedly connected to the second locking screw 106.

[0020] Furthermore, the number of the shift fork rods 12 is two or four.

[0021] Furthermore, the shift fork rods 12 are circumferentially arranged on the shift fork 10 ; and the interval angles between two adjacent shift fork rods 12 are equal.

[0022] In this embodiment, first remove the round nuts 5 and the anti-retraction washers 6 from both ends of the shaft 1, and then put on a part of the auxiliary clamp (i.e., the fixed chuck 7), and use the first screw through-hole 8 and the first threaded hole 9 to penetrate the first screw through-hole 8 and then connect it to the first threaded hole 9 until the fixed chuck 7 is connected to the roller sleeve 2. At this time, if the shaft 1 is rotated, the shaft 1 and the roller sleeve 2 will be linked, and then the round nuts 5 and the anti-retraction washers 6 are reset and installed, and then the other part of the auxiliary clamp (i.e., the fork 10) is clamped, and the first fork split 101 and the second fork split 102 on it are combined until the outer shaft end 4 is matched and inserted into the center positioning hole 11, and finally inserted into the dial of the roller grinder through the fork rod 12, so that the rotating dial can drive the fork 10 and the tension roller connected to it to rotate as a whole, thereby completing the grinding of the tension roller sleeve.

[0023] The utility model relates to an auxiliary clamp for grinding the tension roller of a rolling mill. The auxiliary clamp is clamped on the shaft end in the form of a coaxial sleeve. The shaft and the roller sleeve are connected by a fixed chuck, and then the fork and the upper fork rod are connected to the dial of the grinder to realize the overall rotation of the tension roller during grinding, which is convenient for grinding processing. The auxiliary clamp has a simple structure, is easy to clamp and use, has complete overall functions, and is highly practical.

[0024] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationship, they are based on the orientation or positional relationship actually shown and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can combine the embodiments and understand the specific meanings of the above terms according to specific circumstances.

[0025] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this utility model should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. An auxiliary fixture for grinding a tension roller in a rolling mill, comprising a coaxially arranged shaft and roller sleeve that rotate relative to each other, the shaft having an inner shaft end and an outer shaft end extending out of the roller sleeve, the outer shaft end being in a non-rotating cylindrical shape, the inner shaft end having an external thread, a round nut being threadedly connected to the inner shaft end, and a retaining washer respectively sleeved on each end of the shaft and compressed by the round nut, characterized in that: Both ends of the shaft are respectively covered with a fixed chuck pressed by a retaining washer, a first screw through-hole is arranged on the circumference of the fixed chuck, and a first threaded hole matching the first screw through-hole is opened on the end surface of the roller sleeve, and a first locking screw threadedly connected to the first threaded hole is passed through the first screw through-hole; The outer shaft end is sleeved with a shift fork, which is provided with a central positioning hole for the outer shaft end to be matched and inserted into, and the shift fork is provided with at least one shift fork rod extending in the axial direction, and the shift fork rod extends back to the roller sleeve.

2. The auxiliary fixture for grinding the tension roller of a rolling mill according to claim 1, characterized in that: The shift fork consists of two first shift fork splits and a second shift fork split that are symmetrically arranged in an upper and lower direction. A portion of the central positioning hole is opened on the first shift fork split, and the other end portion is opened on the second shift fork split. First ear plates are respectively provided on the left and right sides of the first shift fork split, and second ear plates matching the first ear plates are respectively provided on the left and right sides of the second shift fork split. Second screw through-holes are opened on the second ear plate and the first ear plate. Second locking screws are inserted into the second screw through-holes on the first ear plate and the second ear plate on the same side, and a second locking nut is threadedly connected to the second locking screw.

3. The auxiliary fixture for grinding the tension roller of a rolling mill according to claim 1 or 2, characterized in that: The number of the shift fork rods is two or four.

4. The auxiliary fixture for grinding the tension roller of a rolling mill according to claim 3, characterized in that: The shift fork rods are circumferentially arranged on the shift fork; and the interval angles between two adjacent shift fork rods are equal.

Images