Adjustable self-centering square box outer cover turning device

Abstract

The utility model discloses an adjustable self-centering square box outer cover turning device which comprises a fixed supporting body and a middle supporting body. The two fixed supporting bodies are located at the two ends of the middle supporting body. The fixed supporting body comprises a round supporting plate, an adjustable supporting plate, a first positioning plate and a second positioning plate are sequentially arranged on the plate face of the round supporting plate around the axis of the round supporting plate, a nut is welded to the adjustable supporting plate, the nut is in threaded connection with an adjusting bolt abutting against the bottom of an inner cavity of the square box outer cover, and the first positioning plate and the second positioning plate abut against the two sides of the upper portion of the inner cavity of the square box outer cover correspondingly; the two ends of the middle supporting body correspondingly penetrate through the two opposite side plates of the square box outer cover. The square box outer cover is accurately positioned and fixed, turning of two end planes of the square box outer cover on a lathe is achieved, and operation efficiency and machining quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to an adjustable self-centering square box outer cover turning device. Background Art

[0002] The outer cover of a large-tonnage hoist is generally a square structure, with the motor connected on one side and the reducer on the other side. Due to the particularity of the square box outer cover structure, high requirements are placed on the planes on both sides, the parallelism of the stoppers, and the coaxiality. In addition, there are many types of outer covers, which brings inconvenience to production and processing. Usually, it is directly clamped and turned on a lathe. Due to the limitations of the operator's proficiency, it is difficult to guarantee product accuracy, operating efficiency, and processing quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an adjustable self-centering square box cover turning device to accurately position and fix the square box cover, so as to realize the turning of the two end planes of the square box cover on a lathe, thereby improving the working efficiency and processing quality, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable self-centering square box cover turning device, comprising a fixed support body and an intermediate support body; the fixed support body is provided with two and located at both ends of the intermediate support body; the fixed support body comprises a circular support plate, the plate surface of the circular support plate is provided with an adjustable support plate, a positioning plate 1 and a positioning plate 2 in sequence around its axis, the adjustable support plate is welded with a nut, the nut is threadedly connected with an adjusting bolt that contacts the bottom of the inner cavity of the square box cover, and the positioning plate 1 and the positioning plate 2 contact the two sides of the upper part of the inner cavity of the square box cover correspondingly; the two ends of the intermediate support body pass through the two opposite side plates of the square box cover correspondingly.

[0005] Preferably, the adjustable support plate, the first positioning plate and the second positioning plate are all plugged with end surface positioning shafts that abut against the side walls of the square box outer cover.

[0006] Preferably, the intermediate support body includes a sleeve, a screw rod and a top support shaft, and nuts are welded to opposite ends of the sleeve and the top support shaft, and the two nuts are threadedly connected to the screw rod.

[0007] Preferably, the top support shaft is adapted to the axial center hole of the circular support plate, and the other end of the top support shaft is provided with a top hole.

[0008] Preferably, the adjustable support plate, the first positioning plate and the second positioning plate are welded to the circular support plate and are all oriented toward the center of the circular support plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the fixed support body is made based on the inner contour of the workpiece, and is positioned by positioning plate one and positioning plate two, and is height-adjusted and fixed by adjusting bolts to ensure that the center heights of the fixed support bodies at both ends are consistent; the end face positioning shaft and the top support shaft realize the positioning of the fixed support body and the intermediate support body on the inner end face of the workpiece, and a one-support-one-top clamping method can be adopted on the lathe. Even when the workpiece is reversed, the clamping references at both ends are always consistent to ensure the machining accuracy. By replacing sleeves of different lengths, the machining of workpieces of different lengths is facilitated, and the turning of the two end planes of the square box cover on the lathe is realized, thereby improving the working efficiency and machining quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a side view of the utility model;

[0012] Figure 3 The local structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 4 The local structure of the utility model is shown in FIG. Figure 2 .

[0014] In the figure: 1 fixed support body, 1.1 round support plate, 1.2 adjustable support plate, 1.21 nut, 1.22 adjusting bolt, 1.3 positioning plate one, 1.4 positioning plate two, 1.5 end surface positioning shaft, 2 intermediate support body, 2.1 sleeve, 2.2 screw rod, 2.3 top support shaft. DETAILED DESCRIPTION

[0015] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0016] See also Figure 1-4 , the utility model provides the following technical solutions:

[0017] Embodiment 1: An adjustable self-centering square box cover turning device comprises a fixed support body 1 and an intermediate support body 2; the fixed support body 1 is provided with two and located at the two ends of the intermediate support body 2; the fixed support body 1 comprises a circular support plate 1.1, the plate surface of the circular support plate 1.1 is provided with an adjustable support plate 1.2, a positioning plate 1 1.3 and a positioning plate 2 1.4 in sequence around its axis, the adjustable support plate 1.2 is welded with a nut 1.21, the nut 1.21 is threadedly connected with an adjusting bolt 1.22 that contacts the bottom of the inner cavity of the square box cover, the positioning plate 1 1.3 and the positioning plate 2 1.4 contact the two sides of the upper part of the inner cavity of the square box cover correspondingly, the adjustable support plate 1.2, the positioning plate 1 1.3 and the positioning plate 2 1.4 are welded to the circular support plate 1.1, and all face the center direction of the circular support plate 1.1; the two ends of the intermediate support body 2 pass through the two opposite side plates of the square box cover correspondingly;

[0018] The circular support plate 1.1, the adjustable support plate 1.2, the positioning plate 1 1.3 and the positioning plate 2 1.4 are welded together to form a fixed support body 1. The welding is performed based on the inner contour of the workpiece. The positioning plate 1 1.3 and the positioning plate 2 1.4 are tangent to the inner edge of the workpiece. The circular support plate 1.1 coincides with the center of the workpiece. The purpose of this design is to ensure that the fixed support body 1 coincides with the center of the workpiece after clamping, so as to position the workpiece.

[0019] It should be noted that, taking into account the welding deformation of the workpiece base plate, a nut 1.21 is welded on the surface of the adjustable support plate 1.2, and the height of the fixed support body 1 as a whole inside the workpiece is adjusted and fixed by adjusting the bolt 1.22 and the nut 1.21, so as to realize internal support fixation, thereby ensuring the relative position, precision requirements and processing consistency of the reducer side mounting surface, motor side mounting surface and matching stop of the outer cover.

[0020] Embodiment 2: Different from Embodiment 1, the adjustable support plate 1.2, positioning plate 1 1.3 and positioning plate 2 1.4 are all connected with an end face positioning shaft 1.5 which contacts with the side wall of the square box cover. The inner end face positioning of the workpiece is achieved through the end face positioning shaft 1.5, and a position is reserved for the three-jaw chuck to support the inner hole of the workpiece.

[0021] Embodiment 3: Different from Embodiment 1, the intermediate support body 2 includes a sleeve 2.1, a screw rod 2.2 and a top support shaft 2.3. Nuts are welded to the opposite ends of the sleeve 2.1 and the top support shaft 2.3, and the two nuts are threadedly connected to the screw rod 2.2; the top support shaft 2.3 is adapted to the axial hole of the circular support plate 1.1, and a top hole is provided at the other end of the top support shaft 2.3. The top hole facilitates the top of the lathe tailstock to be firmly supported, realizing a one-support-one-support clamping method on the lathe, so that the clamping references at both ends remain consistent, and the length of the sleeve 2.1 can also be adjusted according to actual needs to realize the clamping of workpieces of different lengths.

[0022] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended to include all changes that fall within the meaning and scope of equivalent elements in the content of the present invention.

Claims

1. An adjustable self-centering square box cover turning device, characterized in that: The invention comprises a fixed support body (1) and an intermediate support body (2); the fixed support body (1) is provided with two fixed support bodies and located at two ends of the intermediate support body (2); the fixed support body (1) comprises a circular support plate (1.1); the plate surface of the circular support plate (1.1) is provided with an adjustable support plate (1.2), a first positioning plate (1.3) and a second positioning plate (1.4) in sequence around its axis; the adjustable support plate (1.2) is welded with a nut (1.21); the nut (1.21) is threadedly connected with an adjusting bolt (1.22) that contacts the bottom of the inner cavity of the square box outer cover; the first positioning plate (1.3) and the second positioning plate (1.4) contact the two sides of the upper part of the inner cavity of the square box outer cover; the two ends of the intermediate support body (2) pass through two opposite side plates of the square box outer cover respectively.

2. The adjustable self-centering square box cover turning device according to claim 1, characterized in that: The adjustable support plate (1.2), the first positioning plate (1.3) and the second positioning plate (1.4) are all plugged with end surface positioning shafts (1.5) that abut against the side walls of the square box outer cover.

3. The adjustable self-centering square box cover turning device according to claim 1, characterized in that: The intermediate support body (2) comprises a sleeve (2.1), a screw rod (2.2) and a top support shaft (2.3); nuts are welded to opposite ends of the sleeve (2.1) and the top support shaft (2.3); the two nuts are threadedly connected to the screw rod (2.2).

4. The adjustable self-centering square box cover turning device according to claim 3, characterized in that: The top support shaft (2.3) is adapted to the axial center hole of the circular support plate (1.1), and the other end of the top support shaft (2.3) is provided with a top hole.

5. The adjustable self-centering square box cover turning device according to claim 1, characterized in that: The adjustable support plate (1.2), the first positioning plate (1.3) and the second positioning plate (1.4) are welded to the circular support plate (1.1) and are all oriented towards the center of the circular support plate (1.1).

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