Clamping jaw locking and reinforcing device of roller lathe

Abstract

The utility model discloses a clamping jaw locking and reinforcing device for a roller lathe, which belongs to the field of roller lathe equipment and comprises a main body shell which is fixedly arranged on a chuck pier of the roller lathe through a clamping plate, an input shaft penetrating into the shell is arranged at the input end of the shell, and an input gear is fixedly sleeved at the tail end of the input shaft. An annular inner gear ring is annularly arranged at the position, opposite to the input gear, in the shell, three evenly-distributed output gears are embedded between the input gear and the annular inner gear ring in a meshed mode, one side of each output gear is meshed with the input gear, the other side of each output gear is meshed with the annular inner gear ring, and the center of each output gear is provided with a connecting shaft with the same length. The tail ends of the three connecting shafts are connected to a common output table through bearings, an output concave hole is formed in the middle of the output table, a roller lathe clamping jaw lead screw acting shaft is inserted into the output concave hole, the structure is simple, clamping jaw tightening operation can be effectively completed by a single person, safety is guaranteed, and labor and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of roll lathe equipment, in particular to a claw locking force increasing device for a roll lathe. Background Technique

[0002] When loading and clamping a workpiece on a roll lathe, it is necessary to rotate and tighten the claws to pre-tighten the product. For a heavy-duty roll lathe, on the one hand, a relatively large force is required to tighten the claws itself. At the same time, because the heavy-duty roll lathe is relatively large in size and there is a large frictional force between the connections of various components, when tightening the claws of the heavy-duty roll lathe, an extended sleeve or a sledgehammer is generally used for knocking. The above two methods are time-consuming and laborious, with a large operating labor intensity. Sometimes, two people need to cooperate to complete the operation, and there are also certain safety hazards when using a sledgehammer to knock. Therefore, there is an urgent need for a force increasing device for assisting in claw locking, so that production personnel can conveniently and labor-savingly complete the operation of tightening the claws alone, improving production efficiency and production safety. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a claw locking force increasing device for a roll lathe, aiming to solve the problems of difficult claw tightening, large required force, and the need for multiple people to jointly operate and use extended sleeves or heavy hammers for knocking in the existing heavy-duty roll lathes, which are time-consuming, laborious, and have safety hazards. With the help of the force increasing device, the input force can be increased through the change of gear torque, and the operation of tightening the claws can be completed alone by using a conventional ordinary wrench.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a claw locking force increasing device for a roll lathe, including a main body housing. The housing is cylindrical and is fixedly arranged on the chuck pier of the roll lathe through a clamping plate. The free end of the housing is the input end, and the fixed end is the output end. An input shaft extending into the interior of the housing is arranged on the input end. An input gear is fixedly sleeved at the tail end of the input shaft. An annular internal gear ring is arranged around the housing interior at a position opposite to the input gear. Three uniformly distributed output gears are meshed and embedded between the input gear and the annular internal gear ring. One side of the output gear is meshed with the input gear, and the other side is meshed with the annular internal gear ring. A connecting shaft with the same length is arranged at the center of each output gear. The tail ends of the three connecting shafts are connected to a common output platform through bearings. An output concave hole is arranged in the middle of the output platform. The acting shaft of the roll lathe claw lead screw is inserted into the output concave hole.

[0005] A further improvement of the technical solution of the utility model lies in that: the input shaft is a spliced shaft. The part exposed outside the input end is a regular hexagonal prism outer shaft, and the part inside the input end is a cylindrical inner shaft. A sealing bearing is sleeved at the connection between the input shaft and the input end sealing surface.

[0006] A further improvement of the technical solution of the utility model lies in that: a rubber anti-slip pad for facilitating the clamping of the wrench is arranged on the regular hexagonal prism outer shaft of the input shaft.

[0007] A further improvement of the technical solution of the present utility model lies in that: the output concave hole is a regular hexagonal concave hole.

[0008] A further improvement of the technical solution of the present utility model lies in that: lifting lugs are provided on the upper surface of the outer shell.

[0009] A further improvement of the technical solution of the present utility model lies in that: an anti-corrosion coating is provided on the outer surface of the outer shell.

[0010] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model is as follows: by providing a force-increasing device on the chuck pier of the roll lathe, the force-increasing device is that the input shaft drives the output table to rotate by meshing multiple gears with each other, so as to achieve an increase in torque and realize the increase of the input force. The operator can easily rotate the input shaft alone, and then drive the output concave hole to rotate the lead screw of the roll lathe to complete the operation of tightening the chuck jaws. By designing the outer shaft of the input shaft into a regular hexagonal prism, it is more convenient to use a wrench for clamping and easy to exert force for rotation. Through the novel force-increasing device of the present utility model, a conventional ordinary wrench can be used to complete the operation of tightening the chuck jaws alone, which not only ensures safety but also saves manpower and effort. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts;

[0012] Figure 1 is a structural schematic diagram of the force-increasing device of the present utility model;

[0013] Wherein, 1. clamping plate, 2. outer shell, 3. input shaft, 4. input gear, 5. output gear, 6. connecting shaft, 7. output table, 8. output concave hole, 9. annular internal gear ring, 10. lifting lug. Detailed Embodiment

[0014] The following further describes the present utility model in detail with reference to the embodiments:

[0015] Such as Figure 1As shown in the figure, it is a schematic structural diagram of a jaw locking force increasing device for a roll lathe, which is a cross-sectional view from the side. The main body is a cylindrical outer shell 2. The input shaft 3, the output concave hole 8, and the internal meshing gear set are all arranged inside the outer shell 2. An anti-corrosion coating is provided on the outer surface of the outer shell 2 to extend its service life. A lifting lug 10 is provided on the outer surface of the upper part of the outer shell 2, which is convenient for hoisting during the tightening operation of the jaw. The outer shell 2 is fixedly arranged on the chuck pier of the roll lathe in cooperation with the clamping plate 1. In this embodiment, the roll lathe is an RT125 type roll lathe. One end of the outer shell 2 in fixed contact with the chuck pier is the fixed end, and the other end is the free end. Among them, the free end is the input end, and the fixed end is the output end. A through hole is provided in the middle of the sealing surface at the input end. An input shaft 3 extending into the interior of the outer shell 2 is arranged in the through hole. In this embodiment, the input shaft 3 is a spliced shaft. The part leaking outside the input end is a regular hexagonal outer shaft, and the part inside the input end is a cylindrical inner shaft. A sealing bearing is sleeved at the transition between the outer column and the inner column, and the sealing bearing is fixedly arranged at the through hole of the sealing surface at the input end to realize the sealing of the connection between the output shaft 3 and the sealing surface at the input end. At the same time, a rubber anti-slip pad for facilitating the clamping of the wrench is provided on the regular hexagonal outer shaft. An input gear 4 is fixedly sleeved at the tail end of the cylindrical inner shaft of the output shaft 3. The rotation of the output shaft 3 can drive the rotation of the input gear 4. An annular internal gear ring 9 is provided in a ring shape around the interior of the outer shell 2. The position of the annular internal gear ring 9 is outside the position of the input gear 4 and opposite to the position of the input gear 4. Three evenly distributed output gears 5 are meshed and embedded between the input gear 4 and the annular internal gear ring 9. One side of the output gear 5 is meshed with the input gear 4, and the other side is meshed with the annular internal gear ring 9. A connecting shaft 6 with the same length is provided at the center of each output gear 5. Anti-rotation bearings are sleeved at the tail ends of the three connecting shafts 6, and the bearings are fixedly arranged on a common output platform 7. An output concave hole 8 is provided in the middle of the output platform 7. A roll lathe jaw lead screw action shaft is received in the output concave hole 8, that is, when in use, the roll lathe jaw lead screw action shaft is inserted into the output concave hole (8). To cooperate with the lead screw shaft, the output concave hole 8 is a regular hexagonal concave hole. When using the novel force increasing device to tighten the jaw of the lathe, after assembly, only the operator needs to clamp the input shaft 3 with an ordinary wrench and rotate it. The input shaft 3 will drive the input gear 4 at the tail of the shaft to rotate. The input gear 4 drives the meshed output gears 5 to rotate. On the one hand, the output gears 5 will generate self-rotation because they are meshed with the input gear 3, and on the other hand, they will form a revolution because they are also meshed with the outer annular internal gear ring 9. The revolving output gears 5 drive the rotation of the output platform 7 and finally the output concave hole 8. Due to the mutual meshing of the gear set, the torque is effectively amplified, and the force rotating on the input shaft 3 is increased and transferred to the output concave hole 8. The output concave hole 8 then drives the lead screw action shaft of the roll lathe inserted therein, and drives the lead screw to tighten the jaw of the lathe. This novel structure is concise, and the use effect is obvious. With an ordinary wrench, a single operator can complete the jaw tightening operation, which not only ensures safety but also saves manpower and effort, and is applicable to various large roll lathes.

[0016] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A locking force-enhancing device for a roller lathe jaw, comprising a main body shell (2), the shell (2) being cylindrical and fixedly arranged on a chuck pier of the roller lathe via a clamping plate (1), characterized in that: The free end of the housing (2) is the input end, and the fixed end is the output end. The input end is provided with an input shaft (3) which penetrates into the housing (2). The rear end of the input shaft (3) is provided with an input gear (4). An annular inner gear ring (9) is provided in the housing (2) at a position relative to the input gear (4). Three evenly distributed output gears (5) are meshed and embedded between the input gear (4) and the annular inner gear ring. One side of the output gear (5) meshes with the input gear (4), and the other side meshes with the annular inner gear ring (9). A connecting shaft (6) of the same length is provided at the center of each output gear (5). The rear ends of the three connecting shafts (6) are connected to a common output platform (7) through bearings. An output concave hole (8) is provided in the middle of the output platform (7), and an action shaft of a jaw lead screw of a roller lathe is inserted into the output concave hole (8).

2. The locking force amplifying device for the jaws of a roll lathe according to claim 1, characterized in that: The input shaft (3) is a spliced ​​shaft, the part outside the input end is a regular hexagonal prism outer shaft, the part inside the input end is a cylindrical inner shaft, and a sealing bearing is sleeved at the connection between the input shaft (3) and the input end sealing surface.

3. The locking force amplifying device for the jaws of a roll lathe according to claim 2, characterized in that: A rubber anti-skid pad is arranged on the outer shaft of the regular hexagonal prism of the input shaft (3) to facilitate the clamping of a wrench.

4. The locking force amplifying device for the jaws of a roll lathe according to claim 1, characterized in that: The output concave hole (8) is a regular hexagonal concave hole.

5. The locking force amplifying device for the jaws of a roll lathe according to claim 1, characterized in that: A lifting lug (10) is provided on the upper surface of the housing (2).

6. The locking force amplifying device for the jaws of a roll lathe according to claim 1, characterized in that: The outer surface of the housing (2) is provided with an anti-corrosion coating.

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