Tool for processing retaining ring

Abstract

The utility model discloses a tool for processing a retaining ring, and belongs to the technical field of positioning equipment. The tool for retaining ring machining comprises a bearing plate, a mounting frame perpendicular to the bearing plate is mounted at the end of the bearing plate, the mounting frame comprises a middle plate, the middle plate is parallel to the bearing plate, a sliding hole is formed in the edge of the middle plate, and a butt clamping assembly horizontally moving in the length direction of the sliding hole is slidably mounted at the sliding hole. Through the improvement of the overall structure, the retaining ring can be vertically arranged in the device, the retaining ring can be pushed to roll and be centered through the butt clamp assembly moving by an object, and compared with a sliding contact mode, through the rolling moving mode, the moving resistance can be greatly reduced, the retaining ring is prevented from being abraded, and the clamping force needing to be applied by the butt clamp assembly can also be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning equipment, and more specifically to a tooling for processing retaining rings. Background Art

[0002] The guard ring is one of the important components of the steam turbine generator. It is a high-strength, non-magnetic, metal ring-shaped component used to prevent the rotor components and the ends of the excitation winding from deformation, displacement and eccentricity under the action of electromagnetic force and high-speed centrifugal force. During the machining process, the guard ring needs to be fixed and clamped using a positioning tool.

[0003] The existing publication number is CN217727898U, and the patent name is a patent document of a tooling for processing a retaining ring. It discloses that the spiral convex strips on the wire disc cooperate with the arc strips at the bottom of multiple driving blocks, so that the multiple driving blocks drive the slide bars to move linearly along the slide groove, and the retaining ring is self-centeringly clamped by multiple clamping blocks, which has a wide range of applications;

[0004] However, in actual operation, because the retaining rings used in the turbine are large in size and heavy in weight, the horizontal end face of the retaining ring is placed on the tooling with the downward facing surface, and is in sliding contact with the upper surface of the tooling. The retaining ring is pushed by a motor and a threaded drive, which requires overcoming a large friction resistance, causing the motor and the thread to be subjected to large forces and easily damaged. In view of this, we propose a tooling for retaining ring processing. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of the utility model is to provide a tool for processing a retaining ring to solve the problems raised in the above background technology.

[0007] 2. Technical solution

[0008] A tool for processing a guard ring includes a load-bearing plate, an end of which is provided with a mounting frame arranged perpendicular to the load-bearing plate, the mounting frame includes a middle plate, the middle plate and the load-bearing plate are parallel to each other, a sliding hole is opened at the edge of the middle plate, and a clamping component that moves horizontally along the length direction of the sliding hole is slidably installed at the sliding hole.

[0009] Preferably, the clamping assembly includes side rollers, which are cylindrical, radially parallel to the supporting plate and perpendicular to the mounting frame and arranged toward one end of the supporting plate, and two side rollers are provided and symmetrically installed with the vertical center line of the mounting frame as the center.

[0010] Preferably, racks are installed at the rear ends of the two side rollers, the two racks are staggered up and down, and tooth grooves are opened on opposite sides of the two racks. The clamping assembly also includes a transmission part that engages with the two racks through the tooth grooves.

[0011] Preferably, the bearing plate comprises a bottom plate, a transverse plate is mounted on the top surface of the bottom plate, and the side walls of the transverse plate and the bottom plate vertical mounting frame are designed to be inclined surfaces.

[0012] Preferably, an arc groove is provided in the middle of the top surface of the transverse plate, and the middle of the arc groove is concave toward the bottom plate.

[0013] Preferably, a vertical plate is installed on the bottom plate parallel to the vertical side wall of the mounting frame, and the vertical plate is chamfered at one end of the inclined surface.

[0014] Preferably, a positioning assembly is installed in the middle of the top end of the middle plate, and the positioning assembly includes a connecting frame, which is fixedly connected to the middle plate, and a middle roller extending parallel to the side rollers is movably installed on the upper part of the connecting frame. The middle roller is located directly above the arc groove, and a driving member for moving the middle roller up and down is installed between the middle roller and the middle plate.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. Through the improvement of the overall structure, the guard ring can be placed vertically in the device, and the clamping assembly that moves the object can push the guard ring to roll and center. Compared with the sliding contact method, the rolling movement method can greatly reduce the movement resistance, avoid wear of the guard ring, and also reduce the clamping force that the clamping assembly needs to apply;

[0018] 2. A horizontal plate with an arc groove is arranged under the clamping assembly. When the guard ring is placed on the horizontal plate, it can be guided in the center through the arc surface. After pre-positioning, the clamping assembly can be used for precise positioning, which can improve working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0021] Figure 3 It is a three-dimensional schematic diagram of the utility model in a state where the guard ring is removed;

[0022] Figure 4 It is a schematic diagram of the position of the clamping assembly of the utility model.

[0023] Description of the numbers in the figure:

[0024] The bearing plate 1; the bottom plate 11; the horizontal plate 12; the arc groove 121; the vertical plate 13;

[0025] Mounting frame 2; middle plate 21; sliding hole 22;

[0026] Positioning assembly 3; middle roller 31; connecting frame 32; driving member 33;

[0027] Clamping assembly 4; transmission member 41; rack 42; side roller 43. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Example:

[0032] This embodiment provides a tool for processing a retaining ring, referring to Figure 1 , including a bearing plate 1, the bearing plate 1 is used to place the guard ring, the end of the bearing plate 1 is installed with a mounting frame 2 arranged vertically on the bearing plate 1, wherein the mounting frame 2 includes a middle plate 21, the bottom end of the middle plate 21 is installed with a linear module moving forward and backward, the middle plate 21 is vertically arranged at the rear side of the bearing plate 1, and the middle plate 21 and the bearing plate 1 are parallel to each other, refer to Figure 2When loading, the linear module drives the middle plate 21 to move backward, and the clamping assembly 4 can be pulled out backward, and then the guard ring can be rolled onto the bearing plate 1 from the right end or the left end, and the bearing plate 1 is used to bear most of the weight of the guard ring. In addition, a sliding hole 22 is opened at the edge of the middle plate 21, and the clamping assembly 4 passes through the middle plate 21 front and back through the sliding hole 22. The sliding hole 22 is slidably installed with a clamping assembly 4 that moves horizontally along the length direction of the sliding hole 22. Through the horizontal movement of the clamping assembly 4, it can be close to the guard ring, cooperate with the bearing plate 1 for three-point support, and cooperate with the dead weight of the guard ring to complete the positioning of the guard ring. The guard ring rolls on the bearing plate 1, and the movement resistance is small.

[0033] In a further embodiment, referring to Figure 2 The clamping assembly 4 includes a side roller 43, and the outer side of the side roller 43 is wrapped with an elastically deformable rubber sleeve, which does not affect the forward and backward movement of the side roller 43 at the position of the sliding hole 22, and can also prevent the hard metal from directly contacting the guard ring and preventing the outer edge of the guard ring from being worn. The side roller 43 is cylindrical, and the side roller 43 is radially parallel to the bearing plate 1 and is perpendicular to the mounting frame 2 and is arranged toward one end of the bearing plate 1. At the same time, two side rollers 43 are provided and are symmetrically installed with the vertical center line of the mounting frame 2 as the center. When moving horizontally, the side roller 43 can squeeze the guard ring toward the middle position of the bearing plate 1 to achieve center positioning.

[0034] In a further embodiment, referring to Figure 2 and Figure 4 , racks 42 are installed at the rear ends of the two side rollers 43, and the racks 42 are horizontally arranged along the rear side wall of the middle plate 21. The two racks 42 are staggered up and down to form an installation gap between the two racks 42, and tooth grooves are provided on the opposite sides of the two racks 42. At the same time, the clamping assembly 4 also includes a transmission member 41 that meshes with the two racks 42 through the tooth grooves. A gear with teeth can be used as the transmission member 41 to drive the racks 42 to move synchronously in opposite directions to achieve adaptive centering clamping, and the gear meshing transmission method has high transmission accuracy to ensure centering accuracy, and the rotating seat on which the transmission member 41 is rotatably installed can overlap the untoothed side of the rack 42, and can press the rack 42 toward the transmission member 41 to ensure stable meshing and prevent tooth disengagement.

[0035] In a further embodiment, referring to Figure 3 The bearing plate 1 includes a bottom plate 11, which is made of a hard material. A cross plate 12 is installed on the top surface of the bottom plate 11. The cross plate 12 is made of a rubber material with a smooth surface to prevent wear on the outer wall of the guard ring. The side walls of the cross plate 12 and the bottom plate 11 vertical mounting frame 2 are designed to be inclined, which can play a guiding role when the guard ring rolls up and down, ensuring that the guard ring rolls smoothly and preventing bumps caused by excessive drop.

[0036] In a further embodiment, the guard ring can also be hoisted and unloaded by a crane, and the hoisting method is more suitable for factories with narrow space.

[0037] In a further embodiment, referring to Figure 3 An arc groove 121 is provided in the middle of the top surface of the transverse plate 12. When the guard ring is at the top of the transverse plate 12, it can prevent the guard ring from rolling left and right and detaching from the transverse plate 12 when the side rollers 43 move forward to block the guard ring. The middle of the arc groove 121 is concave toward the bottom plate 11, and adopts an arc-shaped surface. The concave curvature of the arc groove 121 can be used to preliminarily center the guard ring, reducing the overall distance that needs to be moved for precise centering in the later stage.

[0038] In a further embodiment, referring to Figure 2 A vertical plate 13 is installed at the bottom plate 11 parallel to the vertical side wall of the mounting frame 2. The vertical plate 13 can be limited and guided as the guard ring rolls left and right. The vertical plate 13 is chamfered at one end of the inclined surface to play a front and rear guiding role, ensuring that the guard ring can roll smoothly onto the horizontal plate 12.

[0039] In a further embodiment, referring to Figure 3 A positioning assembly 3 is installed in the middle of the top of the middle plate 21, which is used to press the guard ring up and down. For a guard ring with a smaller dead weight, the guard ring can be stably centered. The positioning assembly 3 includes a connecting frame 32, which is fixedly connected to the middle plate 21 and can move forward and backward with the middle plate 21 without affecting the lifting of the guard ring. A middle roller 31 extending parallel to the side roller 43 is movably installed on the upper part of the connecting frame 32. The middle roller 31 can be parallel to the guard ring along the axial direction of the guard ring to increase the contact area. The middle roller 31 is located directly above the arc groove 121, which can ensure that after centering, the middle roller 31 is directly above the guard ring to ensure that the guard ring will not roll left and right when pressed down. A driving member 33 for moving the middle roller 31 up and down is installed between the middle roller 31 and the middle plate 21. The driving member 33 can drive the middle roller 31 away from the guard ring when loading and unloading the guard ring to ensure smooth unloading of the guard ring.

[0040] In a further embodiment, the driving member 33 may be a vertical telescopic cylinder or a lead screw slide driven by a motor.

[0041] The telescopic cylinder and screw slide involved in the embodiment are existing products produced by Shanghai Yongce Mechanical Equipment Co., Ltd., and its supporting control system, solenoid valve, control switch and circuit pipeline can also be provided by the manufacturer. In addition, the power supply module, circuit and electronic components and control module involved in the utility model are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and methods.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool for processing a retaining ring, comprising a bearing plate (1), characterized in that: A mounting frame (2) arranged perpendicular to the supporting plate (1) is installed at the end of the supporting plate (1), and the mounting frame (2) comprises a middle plate (21), the middle plate (21) and the supporting plate (1) are parallel to each other, a sliding hole (22) is opened at the edge of the middle plate (21), and a clamping assembly (4) is slidably installed at the sliding hole (22) and moves horizontally along the length direction of the sliding hole (22).

2. A tool for processing retaining rings according to claim 1, characterized in that: The clamping assembly (4) comprises a side roller (43), the side roller (43) is cylindrical, the side roller (43) is radially parallel to the supporting plate (1) and is arranged perpendicular to the mounting frame (2) toward one end of the supporting plate (1), and two side rollers (43) are arranged and are symmetrically installed with the vertical center line of the mounting frame (2) as the center.

3. A tool for processing retaining rings according to claim 2, characterized in that: A rack (42) is installed at the rear end of the two side rollers (43), the two racks (42) are arranged in an up-and-down manner, and tooth grooves are provided on opposite sides of the two racks (42). The clamping assembly (4) also includes a transmission member (41) meshing with the two racks (42) through the tooth grooves.

4. A tool for processing retaining rings according to claim 3, characterized in that: The bearing plate (1) comprises a bottom plate (11), a transverse plate (12) is mounted on the top surface of the bottom plate (11), and the side walls of the transverse plate (12) and the bottom plate (11) vertical mounting frame (2) are designed to be inclined surfaces.

5. A tool for processing retaining rings according to claim 4, characterized in that: An arc groove (121) is provided in the middle of the top surface of the transverse plate (12), and the middle of the arc groove (121) is concave toward the bottom plate (11).

6. A tool for processing retaining rings according to claim 5, characterized in that: A vertical plate (13) is installed on the bottom plate (11) parallel to the vertical side wall of the mounting frame (2), and the vertical plate (13) is chamfered at one end of the inclined surface.

7. A tool for processing retaining rings according to claim 6, characterized in that: A positioning assembly (3) is installed in the middle of the top end of the middle plate (21), and the positioning assembly (3) includes a connecting frame (32). The connecting frame (32) is fixedly connected to the middle plate (21), and a middle roller (31) extending parallel to the side roller (43) is movably installed on the upper part of the connecting frame (32). The middle roller (31) is located directly above the arc groove (121), and a driving member (33) for moving the middle roller (31) up and down is installed between the middle roller (31) and the middle plate (21).

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