Tool for press fitting of wear ring cover

Abstract

The utility model discloses a tool for pressing a wear ring cover, which relates to the field of guide vane assembly and comprises an upper pressing block which is connected and driven by an upper die of a punching machine, a step is arranged at the lower part of the upper pressing block, a ball screw is arranged on the outer wall of the upper pressing block, and the wear ring cover is flexibly fixed in the step; the positioning plate is coaxially arranged below the upper pressing block and is used for positioning and mounting the flow guide shell assembly; the wear ring and the wear ring seat are both mounted at the top of the flow guide shell assembly, and a plurality of groups of grooves are symmetrically formed in the center of the top of the wear ring; and the laser emitter is used for emitting laser and emitting the laser to the wear ring through the wear ring seat, so that the laser is aligned with one group of grooves. The positioning block is additionally arranged and matched with the inner hole of the flow guide shell to fix the position of the flow guide shell, and concentricity of upper and lower parts is guaranteed. A step is arranged below the upper die pressing block to be matched with the wear ring cover, the periphery of the step is punched, and the ball spring is installed, so that the wear ring cover is installed on the upper die, flexibly fixed and separated from the upper die after press fitting, and it is guaranteed that the wear ring cover does not incline or fall off.

Description

Technical Field

[0001] The utility model relates to the field of guide vane assembly, and particularly relates to a tooling for press-fitting an orifice ring cover. Background Art

[0002] The orifice ring cover is a component inside the guide vane assembly, mainly playing a role in fixing the orifice ring and ensuring that it does not fall off.

[0003] The existing orifice ring cover press-fitting tooling has a simple structure, only having an upper pressure plate. During work, the upper plane of the orifice ring cover is pressed down by a punching press to complete the press-fitting work of the orifice ring cover. Since there is no positioning tooling for the upper orifice ring cover and the lower flow guiding housing during press-fitting, employees can only observe whether they are concentric visually during operation, and there is a lack of anti-fooling function, resulting in low production efficiency and high technical requirements for operators. At the same time, due to non-concentricity between the upper and lower parts, the inclined mouth of the orifice ring cover is prone to deformation during the press-fitting process, and finally the orifice ring cover becomes loose and falls off after press-fitting. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide a tooling for press-fitting an orifice ring cover. On the basis of the existing tooling, positioning blocks are added on the lower platform to cooperate with the inner hole of the flow guiding housing to fix its position and ensure the concentricity of the upper and lower parts. A step is made under the upper die pressing block to cooperate with the orifice ring cover, and holes are drilled around and ball spring is installed. The orifice ring cover is installed on the upper die and fixed softly, and is separated from the upper die after press-fitting, mainly to ensure the concentricity between the orifice ring cover and the lower flow guiding housing assembly and prevent the orifice ring cover from tilting, so as to ensure that the orifice ring cover does not fall off.

[0005] The purpose of the utility model is completed through the following technical solutions: This tooling for press-fitting an orifice ring cover includes:

[0006] An upper pressure block, driven by the connection of the upper die of the punching press. A step is provided at the lower part of the upper pressure block for embedding and installing the orifice ring cover. Threaded holes penetrating through the inner wall of the step are opened on the outer wall of the upper pressure block for installing ball screws, and the ball screws abut against the outer wall of the orifice ring cover to fix the orifice ring cover softly in the step;

[0007] A positioning plate, installed on the punching press table surface and coaxially arranged below the upper pressure block for positioning and installing the flow guiding housing assembly;

[0008] An orifice ring and an orifice ring seat, both installed on the top of the flow guiding housing assembly, and several groups of grooves are symmetrically arranged at the center of the top of the orifice ring; and

[0009] A laser emitter, used for emitting laser and passing through the orifice ring seat to hit the orifice ring, so that the laser is aligned with one of the groups of grooves;

[0010] When the upper pressure block moves downward, it drives the orifice ring cover to be press-fitted downward on the orifice ring seat.

[0011] As a further technical solution, the ball screw is used to finely adjust its screwing depth along the threaded hole, so as to finely adjust and correct the concentricity of the front mouth ring cover and the mouth ring before press-fitting.

[0012] As a further technical solution, a plurality of side grooves are formed in the outer edge of the mouth ring cover along the circumferential direction, a plurality of bumps are evenly distributed on the lower surface of the mouth ring cover along the circumferential direction, and a limiting block is arranged on the lower surface of the step for correspondingly clamping into one of the side grooves, so that the bumps are in corresponding cooperation with the grooves on the mouth ring.

[0013] As a further technical solution, the inner hole of the flow guiding housing assembly is matched with the positioning plate to realize positioning, ensuring the concentricity of the mouth ring cover and the flow guiding housing assembly.

[0014] As a further technical solution, a notch for the laser to pass through is formed in the mouth ring seat.

[0015] As a further technical solution, a plurality of ventilation holes are formed through the upper pressing block, and the ventilation holes are communicated with the inner cavity of the step.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The upper pressing block and the positioning plate are arranged coaxially, ensuring the concentricity of the mouth ring cover and the mouth ring during press-fitting. The bevel edge of the mouth ring cover is not easily deformed during press-fitting, thus solving the problem that the mouth ring cover is easily detached after press-fitting (solving the problems of press-fitting concentricity and mouth ring cover inclination through the existing tooling);

[0018] 2. Improve the processing efficiency and reduce the production cost;

[0019] 3. Add a positioning anti-fooling device (using the limiting block and the side groove for positioning), reducing the technical level requirements for operators. Description of the Drawings

[0020] Figure 1 is a schematic three-dimensional structure of the utility model Figure 1 。

[0021] Figure 2 is a schematic three-dimensional structure of the utility model Figure 2 。

[0022] Figure 3 is a schematic front view structure diagram of the utility model.

[0023] Figure 4 is a schematic top view structure diagram of the utility model.

[0024] Figure 5 is Figure 4 the A-A cross-sectional view of.

[0025] Figure 6This is a three-dimensional structural schematic diagram of the upper pressing block in the present utility model.

[0026] Figure 7 This is a front view structural schematic diagram of the upper pressing block in the present utility model.

[0027] Figure 8 It is Figure 7 the B-B cross-sectional view of

[0028] Figure 9 This is a structural schematic diagram of the orifice ring cover in the present utility model.

[0029] Explanation of reference numerals: upper pressing block 1, step 11, threaded hole 12, limiting block 13, ventilation hole 14, positioning plate 2, ball screw 3, laser emitter 4, orifice ring cover 5, side groove 51, bump 52, diversion housing assembly 6, orifice ring seat 7, notch 71, orifice ring 8, groove 81. Specific embodiments

[0030] The following will introduce the present utility model in detail with reference to the accompanying drawings:

[0031] Embodiment: As shown in the attached Figures 1 - 9 figures, this tooling for press-fitting the orifice ring cover includes an upper pressing block 1, a step 11, a threaded hole 12, a limiting block 13, a ventilation hole 14, a positioning plate 2, a ball screw 3, a laser emitter 4, an orifice ring cover 5, a side groove 51, a bump 52, a diversion housing assembly 6, an orifice ring seat 7, a notch 71, an orifice ring 8, and a groove 81.

[0032] Referring to the attached Figure 6 、 7 、8, the upper end of the upper pressing block 1 is driven by the upper die of the punching press. The lower surface of the upper pressing block 1 is recessed inward to form a step 11. Four threaded holes 12 (four in this embodiment, or other quantities may also be used) are opened on the outer wall of the upper pressing block 1 along the circumferential direction, and the threaded holes 12 communicate with the inner wall of the step 11. A ball screw 3 is installed in each threaded hole 12. After the orifice ring cover 5 is inserted into the step 11, the ball screw 3 abuts against the outer wall of the orifice ring cover 5, so that the orifice ring cover 5 is softly fixed in the step 11.

[0033] As shown in Figure 1 、 2 figures, the positioning plate 2 is installed on the punching press table through threaded connection, and the positioning plate 2 is coaxially arranged below the upper pressing block 1 to position and install the diversion housing assembly 6. The inner hole of the diversion housing assembly 6 cooperates with the positioning plate 2 to achieve positioning, ensuring the concentricity of the orifice ring cover 5 and the diversion housing assembly 6.

[0034] Referring to the attached Figure 2 、 5, both the gland 8 and the gland seat 7 are installed on the top of the guide vane housing assembly 6, and three groups of grooves 81 are symmetrically arranged at the center of the top of the gland 8. The grooves 81 are in pairs (six in total), and the central angle formed by the two grooves 81 in each group is 180°. Further, a laser emitter 4 is arranged beside the fixed position of the whole tooling. At the same time, a notch 71 is opened on the gland seat 7. The laser emitted by the laser emitter 4 passes through the gland seat 7 from the notch 71 and hits the gland 8. Before assembly, observe with the naked eye first to align the laser with one group of grooves 81. Preferably, the ball screw 3 can finely adjust its screwing depth along the threaded hole 12, so as to finely adjust and correct the concentricity of the gland cover 5 and the gland 8 before press-fitting.

[0035] Further, as Figures 6 - 9 shown, a plurality of side grooves 51 are opened along the circumferential direction on the outer edge of the gland cover 5, and a plurality of bumps 52 are evenly distributed along the circumferential direction on the lower surface of the gland cover 5. A limiting block 13 is arranged on the lower surface of the step 11, and the limiting block 13 is correspondingly clamped into a side groove 51 to position the gland cover 5 and the step 11 (the upper pressing block 1). At the same time, the bumps 52 are correspondingly matched with the grooves 81 on the gland 8 to ensure the concentricity of the gland cover 5 and the gland 8. When the upper pressing block 1 moves downward, it drives the gland cover 5 to be press-fitted onto the gland seat 7. Preferably, four vent holes 14 are penetrated through the upper pressing block 1, and the vent holes 14 are communicated with the inner cavity of the step 11.

[0036] The working process of the utility model:

[0037] 1. Install four glass bead bolts 3 of the same model into the threaded holes 12 reserved on the upper pressing block 1 respectively, and ensure that the screwing depths are the same. Before press-fitting, it is necessary to install the gland cover 5 for testing to ensure that the gland cover 5 is softly fixed and does not fall off, and finally determine the appropriate screwing depth;

[0038] 2. Install the upper pressing block 1 at the position of the upper die of the punching press and fix it on the side by a pin;

[0039] 3. Install the positioning plate 2 on the punching press tabletop. After installation, it is necessary to verify that the position of the positioning plate 2 and the upper pressing block 1 have good concentricity, and then install the guide vane housing assembly 6 on the positioning plate 2. The guide vane housing assembly 6 is positioned through the inner hole with the positioning plate 2;

[0040] 4. Place the upper end face of the gland cover 5 upward and align it with the step 11 position of the upper pressing block 1 for installation. When installing, align the side groove 51 of the gland cover 5 with the limiting block 13 on the upper pressing block 1;

[0041] 5. Turn on the switch of the laser emitter 4, place the gland 8 on the guide vane housing assembly 6, observe with the naked eye and finely adjust the gland 8 to align the laser with the center line of a group of grooves 81 on the gland 8;

[0042] 6. Start the press-fitting work. After completion, check the fixing strength of the orifice ring cover 5 and the bead screw 3. If there is a jamming phenomenon after the press-fitting is completed, loosen it; otherwise, tighten it.

[0043] It can be understood that for those skilled in the art, any equivalent replacement or change to the technical solution and the inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A tooling for press-fitting a gland cover, characterized in that Including: An upper pressing block (1), driven by connection with an upper die of a punching press. A step (11) is provided at the lower part of the upper pressing block (1) for embedding and installing a gland (5). A threaded hole (12) communicating with the inner wall of the step (11) is opened on the outer wall of the upper pressing block (1) for installing a ball plunger screw (3). The ball plunger screw (3) abuts against the outer wall of the gland (5) to softly fix the gland (5) in the step (11). A positioning plate (2), installed on the punching press tabletop and coaxially arranged below the upper pressing block (1) for positioning and installing a flow guiding housing assembly (6). A gland (8) and a gland seat (7), both installed on the top of the flow guiding housing assembly (6), and a plurality of groups of grooves (81) are symmetrically arranged at the center of the top of the gland (8); and A laser emitter (4), used for emitting laser and passing through the gland seat (7) to hit the gland (8) so that the laser is aligned with one of the groups of grooves (81). When the upper pressing block (1) moves downward, it drives the gland (5) to be pressed and installed on the gland seat (7).

2. The tooling for press-fitting the orifice ring cover according to claim 1, characterized in that: The ball plunger screw (3) is used to finely adjust its screwing depth along the threaded hole (12), so as to finely adjust and correct the concentricity of the gland (5) and the gland (8) before pressing.

3. The tooling for pressing the gland cover according to claim 1, characterized in that: A plurality of side grooves (51) are opened on the outer edge of the gland (5) along the circumferential direction, and a plurality of bumps (52) are evenly distributed on the lower surface of the gland (5) along the circumferential direction. A limiting block (13) is arranged on the lower surface of the step (11) for correspondingly clamping into one of the side grooves (51) to make the bumps (52) cooperate with the grooves (81) on the gland (8).

4. The tooling for press-fitting the orifice ring cover according to claim 1, wherein: The inner hole of the flow guiding housing assembly (6) cooperates with the positioning plate (2) to achieve positioning, ensuring the concentricity of the gland (5) and the flow guiding housing assembly (6).

5. The tooling for press-fitting a port ring cover according to claim 1, wherein: A notch (71) for the laser to pass through is opened on the gland seat (7).

6. The tooling for pressing the gland cover according to claim 1, characterized in that: A plurality of ventilation holes (14) are penetrated and opened on the upper pressing block (1), and the ventilation holes (14) communicate with the inner cavity of the step (11).

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