Tool for assembling flow guide body and flow guide body assembling method

Abstract

The tool comprises a base and a flow guide body positioning mold, the flow guide body positioning mold is vertically connected to the base in a sliding mode, a reset piece for driving the flow guide body positioning mold to reset is arranged on the base, the flow guide body positioning mold is provided with a first positioning part for positioning the flow guide body, and the flow guide body positioning mold is provided with a second positioning part for positioning the flow guide body. A through hole is vertically formed in the middle of the flow guide body positioning mold in a penetrating mode, a retaining ring cover positioning mold is arranged at the position, corresponding to the through hole, of the base and provided with a second positioning part for positioning a retaining ring cover, and the flow guide body positioning mold and the retaining ring cover positioning mold are concentrically arranged. In the whole press-fitting process, the retaining ring cover, the retaining ring and the flow guide body do not need to be manually placed according to the requirements for concentricity and parallelism, repeated visual detection for adjusting the concentricity and the parallelism is not needed, therefore, the problems of great detection errors and the like caused by vertical visual detection and squint detection do not occur, and the assembly precision and the assembly efficiency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of tooling, and in particular to a tooling for assembling a flow guide body and an assembling method of the flow guide body. Background Art

[0002] At present, the commonly used manual operation method is used when assembling the guide body 1, the buckle ring 2, and the buckle ring cover 3. Figure 1 , usually divided into the following assembly steps: ① place the guide body 1, ② place the retaining ring 2 on the cylindrical boss in the middle of the guide body 1, ③ look down from the top of the product and manually calibrate the concentricity between the retaining ring 2 and the cylindrical boss in the middle of the guide body 1, ④ place the retaining ring cover 3 stably on the retaining ring 2, ⑤ look down from the top of the product and manually calibrate the concentricity between the retaining ring cover 3, the retaining ring 2 and the cylindrical boss in the middle of the guide body 1, and the retaining ring cover 3 is parallel to the boss (because the retaining ring cover 3 and the boss are interference fit, the retaining ring cover 3 can only be ⑥ Transfer the assembled components to the positioning mold of the press smoothly as a whole; ⑦ Visually inspect after transfer whether the concentricity between the above three parts and the parallelism between the buckle cover 3 and the boss meet the requirements. If not, rework is required and the above steps ⑤, ⑥ and ⑦ are repeated until the visual concentricity and parallelism are qualified before proceeding to the next step; ⑧ Visually confirm that the concentricity is qualified and press the start button of the press for press-fitting; ⑨ Take out the press-fitted components and pack them. The entire assembly process is completed.

[0003] When assembling by the manual operation method, it is difficult to ensure the concentricity and parallelism between parts during assembly because the buckle cover and buckle cannot be positioned during assembly. In addition, repeated inspection and correction of concentricity and parallelism result in low normal efficiency and unsatisfactory benefits. Summary of the invention

[0004] In order to further improve assembly accuracy and assembly efficiency, the present application provides a tool for assembling a flow guide body.

[0005] The present application provides a tool for assembling a flow guide body, which adopts the following technical solution: A tool for assembling a body guide, comprising a base and a body guide positioning mold, wherein the body guide positioning mold is vertically slidably connected to the base, the base is provided with a reset member for driving the body guide positioning mold to reset, the body guide positioning mold has a first positioning portion for positioning the body guide, a through hole is vertically penetrated through the middle of the body guide positioning mold to form a through hole, a buckle cover positioning mold is provided at a position of the base corresponding to the through hole, the buckle cover positioning mold has a second positioning portion for positioning the buckle cover, and the body guide positioning mold and the buckle cover positioning mold are concentrically arranged.

[0006] Optionally, the first positioning portion includes a positioning boss and a positioning side wall, the positioning boss is arranged on the top of the guide body positioning mold, the top wall of the positioning boss is used to abut the bottom wall inside the guide body, and the positioning side wall is used to abut the side wall of the inner wall of the guide body.

[0007] Optionally, the second positioning portion includes a positioning groove formed on the top of the buckle ring cover positioning mold, and the positioning groove matches and fits with the buckle ring cover.

[0008] Optionally, a conical guide surface is provided at the top periphery of the flow guide body positioning mold.

[0009] Optionally, the base includes a center column, and a sliding body slidably matched with the center column is detachably connected to the flow guide body positioning mold, and a guide sleeve is arranged inside the sliding body and is sleeved on the center column.

[0010] Optionally, a mounting groove for installing the guide sleeve is provided inside the sliding body, the mounting groove is filled with oil, and oil seals are provided at both ends of the sliding body corresponding to the mounting groove.

[0011] Optionally, the base further includes a bottom plate, the reset member includes a reset spring, the reset spring is sleeved on the center column, one end of the reset spring is connected to the sliding body, and the other end is connected to the bottom plate.

[0012] Optionally, a concentric centering sleeve is provided on the bottom plate, and the concentric centering sleeve is adapted to one end of the reset spring. A movable centering sleeve is provided on the sliding body, and the movable centering sleeve is adapted to the end of the reset spring away from the concentric centering sleeve.

[0013] Optionally, the buckle cover positioning mold is detachably connected to the base via screws, and a countersunk hole is provided on the flow guide body positioning mold, and a screw connected to the sliding body is passed through the countersunk hole.

[0014] The present application also provides a method for assembling a flow guide body, which has the advantages of high assembly precision and high assembly efficiency, and adopts the following technical solution: A method for assembling a flow guide body comprises the following steps: S1, placing the buckle ring cover on the buckle ring cover positioning mold with the opening facing upward; S2, place the buckle concentrically in the buckle cover; S3, placing the guide body on the guide body positioning mold with the opening facing downward; S4, stamping the flow guide body to achieve press-fitting.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. Abandon the traditional method of installing each part in forward order, and assemble each part in reverse order, so that there is no need to manually place the buckle cover, buckle, and guide body according to the concentricity and parallelism requirements during the entire press-fitting process, and there is no need to repeatedly visually inspect and adjust the concentricity and parallelism. Therefore, there will be no problems such as large detection errors caused by vertical visual inspection and oblique inspection, which effectively improves assembly accuracy and assembly efficiency; 2. As long as the snap ring cover is placed in the second positioning part, the snap ring is placed in the snap ring cover, and the guide body is placed on the guide body positioning mold, the concentricity and parallelism between all parts will be completed by the tooling positioning and the part-to-part positioning. Therefore, the guarantee of concentricity and parallelism can meet the process requirements, and the consistency, product quality and product qualification rate of the pressed products have been qualitatively improved; 3. The sleeve and oil are arranged in the sliding body to effectively reduce the friction resistance and improve the smoothness of sliding. After the press-fitting is completed, the guide body positioning mold can be better reset to the initial state under the action of the reset spring, which is convenient for the assembly of the next guide body; 4. Both the guide body positioning mold and the buckle cover positioning mold can be disassembled and replaced. The corresponding positioning molds can be replaced for guide bodies of different specifications, which can meet the assembly needs of guide bodies of more specifications and has better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the flow guide press assembly in the prior art.

[0017] Figure 2 This is a structural diagram of Example 1.

[0018] Figure 3 This is an exploded view of Example 1.

[0019] Figure 4 It is a cross-sectional view of Example 1 before press-fitting.

[0020] Figure 5 It is a cross-sectional view of Example 1 after the guide body and the buckle ring cover are positioned.

[0021] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0022] Figure 7 This is a cross-sectional view of Example 1 during press assembly.

[0023] Figure 8 yes Figure 7 Enlarged view of point B in the middle.

[0024] Fig. 9 It is a cross-sectional view of Example 1 after press-fitting.

[0025] Fig.10This is a flow chart of Example 2.

[0026] Description of reference numerals: 1. Guide body; 2. Snap ring; 3. Snap ring cover; 4. Base; 5. Guide body positioning mold; 6. Snap ring cover positioning mold; 7. Bottom plate; 8. Center column; 9. Reset member; 10. Through hole; 11. Positioning boss; 12. Positioning side wall; 13. Positioning groove; 14. Pressure head; 15. Conical guide surface; 16. Sliding body; 17. Countersunk hole; 18. Guide sleeve; 19. Mounting groove; 20. Upper oil seal; 21. Lower oil seal; 22. Guide cover ring; 23. Concentric centering sleeve; 24. Movable centering sleeve. DETAILED DESCRIPTION

[0027] The following is combined with Figure 2-10 This application is described in further detail.

[0028] Example 1 A tool for assembling a flow guide body, such as Figure 2-Figure 4 As shown, it includes a base 4, a flow guide body positioning mold 5 and a buckle cover positioning mold 6. The base 4 includes a bottom plate 7 and a center column 8. The bottom plate 7 is used to be fixed on the press. The center column 8 is detachably fixed to the center of the bottom plate 7 by screws. The flow guide body positioning mold 5 is vertically slidably connected to the center column 8 of the base 4, and a reset member 9 is provided on the base 4 to drive the flow guide body positioning mold 5 to move vertically upward and reset. The reset member 9 specifically adopts a reset spring. The center of the flow guide body positioning mold 5 is vertically penetrated to form a through hole 10. The buckle cover positioning mold 6 is arranged at the center column 8 corresponding to the through hole 10. The flow guide body positioning mold 5 and the buckle cover positioning mold 6 are concentrically arranged. The flow guide body positioning mold 5 is provided with a first positioning portion for positioning the flow guide body 1. The buckle cover positioning mold 6 is provided with a second positioning portion for positioning the buckle cover 3. The flow guide body positioning mold 5 and the buckle cover positioning mold 6 are concentrically arranged.

[0029] like Figure 2-Figure 4 As shown, the first positioning portion includes a positioning boss 11 and a positioning side wall 12. The positioning boss 11 is arranged on the top of the guide body positioning mold 5. The top wall of the positioning boss 11 is used to abut the bottom wall inside the guide body 1 to position its vertical height. The positioning side wall 12 is arranged on the outer peripheral wall of the guide body positioning mold 5. The positioning side wall 12 is used to abut the side wall inside the guide body 1 to achieve horizontal positioning restriction on the guide body 1; the second positioning portion is a positioning groove 13 opened on the top of the buckle ring cover positioning mold 6. The shape of the positioning groove 13 matches and adapts to the buckle ring cover 3. The buckle ring cover 3 can be well positioned by simply placing the buckle ring cover 3 in the positioning groove 13.

[0030] like Figure 4-Figure 9As shown, in actual use, the press machine is provided with a pressure head 14, which is located above the base 4. The pressure head 14 is driven by a vertical driving source on the press machine to vertically lift and lower to realize press-fitting, and the vertical driving source can be a cylinder; during assembly, the buckle ring cover 3 is first placed in the positioning groove 13 on the buckle ring cover positioning mold 6 for positioning, and the opening of the buckle ring cover 3 is set upward, and then the buckle ring 2 is placed in the buckle ring cover 3, keeping the buckle ring 2 concentric with the buckle ring cover 3, and then the guide body 1 is placed on the guide body positioning mold 5 for positioning, and the opening of the guide body 1 is set downward, and finally the pressure head 14 is driven to move downward to press the guide body 1 downward, during which the guide body positioning mold 5 is driven to move vertically downward until the guide body 1 is press-fitted with the buckle ring cover 3 and the buckle ring 2, and after the press-fitting is completed, the pressure head 14 is driven upward again, and the guide body positioning mold 5 is moved upward and reset under the action of the reset member 9, at which time the guide body 1 is fastened and fixed with the buckle ring cover 3 to complete the assembly of the guide body 1.

[0031] In this way, as long as the buckle cover 3 is placed in the second positioning part, the buckle 2 is placed in the buckle cover 3, and the guide body 1 is placed on the guide body positioning mold 5, the concentricity and parallelism between all parts will be completed by the tooling positioning and the part-to-part positioning. Therefore, the guarantee of concentricity and parallelism can meet the process requirements, and the consistency, product quality and product qualification rate of the pressed products have been qualitatively improved; during the entire press-fitting process, there is no need to manually place the buckle cover 3, buckle 2, and guide body 1 according to the concentricity and parallelism requirements, and there is no need to repeatedly visually inspect and adjust the concentricity and parallelism, so there will be no problems such as large detection errors caused by vertical visual inspection and oblique inspection, which effectively improves assembly accuracy and assembly efficiency.

[0032] like Figure 2-Figure 4 As shown, a conical guide surface 15 is provided at the top of the guide body positioning mold 5. The design of the conical guide surface 15 is more convenient for the installation of the guide body 1, so that the guide body 1 can be inserted more smoothly from the top and positioned.

[0033] like Figure 2-Figure 4 As shown, a sliding body 16 detachably connected to the flow guide body positioning mold 5 is provided at the bottom thereof, a countersunk hole 17 penetrating therethrough is vertically opened on the flow guide body positioning mold 5, a screw connecting the flow guide body positioning mold 5 and the sliding body 16 is penetrated in the countersunk hole 17, the flow guide body positioning mold 5 and the sliding body 16 are detachable by means of the screw, the flow guide body positioning mold 5 can be replaced and disassembled according to different needs, and the screw is entirely located in the countersunk hole 17 to avoid interference with press-fitting.

[0034] like Figure 2-Figure 4As shown, a guide sleeve 18 is provided inside the sliding body 16 and is sleeved on the center column 8. The guide sleeve 18 is a brass sleeve. The sliding body 16 has an installation groove 19 for installing the guide sleeve 18. The installation groove 19 is filled with oil. Oil seals are provided at the upper and lower ends of the installation groove 19. The oil seals include an upper oil seal 20 and a lower oil seal 21. The upper oil seal 20 is provided between the sliding body 16 and the center column 8. A guide cover ring 22 detachably connected to the sliding body 16 is provided at the bottom of the sliding body 16. The guide cover ring 22 is fixed to the sliding body 16 by screws. The lower oil seal 21 is provided between the guide cover ring 22 and the center column 8. This avoids the sliding body 16 from directly contacting the center column 8. The brass sleeve has good wear resistance. At the same time, the friction resistance of vertical sliding can be effectively reduced with the help of oil, so that the guide body positioning mold 5 and the sliding body 16 can slide vertically more smoothly, so that the guide body positioning mold 5 and the sliding body 16 can be better moved up and reset under the action of the reset spring.

[0035] like Figure 2 and Figure 4 As shown, a concentric centering sleeve 23 is provided on the base plate 7, and a movable centering sleeve 24 is provided on the sliding body 16. The concentric centering sleeve 23 and the movable centering sleeve 24 are respectively adapted to the two ends of the reset spring. With the help of the concentric centering sleeve 23 and the movable centering sleeve 24, the reset spring can be positioned to a certain extent, so that the reset spring can stably extend and retract in the vertical direction, and the reset spring can achieve stable vertical reset.

[0036] Example 2 A method for assembling a flow guide body, wherein the assembly is performed using Embodiment 1, such as Fig.10 As shown, the following steps are included: S1, placing the buckle cover 3 with its opening facing upward into the positioning groove 13 of the buckle cover positioning mold 6 to achieve positioning of the buckle cover 3; S2, placing the buckle ring 2 vertically in the buckle ring cover 3, and keeping the buckle ring 2 and the buckle ring cover 3 in a concentric state; S3, placing the guide body 1 on the guide body positioning mold 5 with its opening facing downward, and positioning it in the horizontal and vertical directions by means of the first positioning portion of the guide body positioning mold 5; S4, driving the pressure head 14 to move vertically downward, the pressure head 14 presses down the guide body 1 and the guide body positioning mold 5 until the press-fitting is completed, and then driving the pressure head 14 to move upward and reset, the guide body 1 and the guide body positioning mold 5 move upward and reset under the action of the reset spring; S5, taking out the assembled assembly to obtain a finished product.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool for assembling a flow guide body, characterized in that: The invention comprises a base (4) and a body guide positioning mold (5), wherein the body guide positioning mold (5) is vertically slidably connected to the base (4), and a reset member (9) is arranged on the base (4) for driving the body guide positioning mold (5) to reset. The body guide positioning mold (5) has a first positioning portion for positioning the body guide (1), and a through hole (10) is vertically penetrated in the middle of the body guide positioning mold (5) to form a through hole (10), and a buckle cover positioning mold (6) is arranged at a position of the base (4) corresponding to the through hole (10), and the buckle cover positioning mold (6) has a second positioning portion for positioning the buckle cover (3), and the body guide positioning mold (5) and the buckle cover positioning mold (6) are concentrically arranged.

2. A tool for assembling a flow guide body according to claim 1, characterized in that: The first positioning portion comprises a positioning boss (11) and a positioning side wall (12); the positioning boss (11) is arranged on the top of the guide body positioning mold (5); the top wall of the positioning boss (11) is used to abut against the bottom wall inside the guide body (1); and the positioning side wall (12) is used to abut against the side wall of the inner wall of the guide body (1).

3. A tool for assembling a flow guide body according to claim 1 or 2, characterized in that: The second positioning portion comprises a positioning groove (13) formed on the top of the buckle ring cover positioning mold (6), and the positioning groove (13) is matched with the buckle ring cover (3).

4. The tooling for assembling a flow guide body according to claim 1, characterized in that: A conical guide surface (15) is provided at the outer periphery of the top of the guide body positioning mold (5).

5. The tooling for assembling a flow guide body according to claim 1, characterized in that: The base (4) comprises a central column (8), and a sliding body (16) which is detachably connected to the fluid guide positioning mold (5) and is slidably matched with the central column (8), and a guide sleeve (18) which is sleeved on the central column (8) is arranged inside the sliding body (16).

6. The tooling for assembling a flow guide body according to claim 5, characterized in that: The sliding body (16) is provided with a mounting groove (19) for mounting the guide sleeve (18), the mounting groove (19) is filled with oil, and oil seals are provided at both ends of the sliding body (16) corresponding to the mounting groove (19).

7. The tooling for assembling a flow guide body according to claim 5, characterized in that: The base (4) also includes a bottom plate (7), and the reset member (9) includes a reset spring, which is sleeved on the central column (8), one end of the reset spring is connected to the sliding body (16), and the other end is connected to the bottom plate (7).

8. The tooling for assembling a flow guide body according to claim 7, characterized in that: The base plate (7) is provided with a concentric centering sleeve (23), and the concentric centering sleeve (23) is adapted to one end of the return spring. The sliding body (16) is provided with a movable centering sleeve (24), and the movable centering sleeve (24) is adapted to the end of the return spring away from the concentric centering sleeve (23).

9. The tooling for assembling a flow guide body according to claim 5, characterized in that: The buckle cover positioning mold (5) is detachably connected to the base (4) via screws, and a countersunk hole (17) is provided on the flow guide body positioning mold (5), and a screw connected to the sliding body (16) is passed through the countersunk hole (17).

10. A method for assembling a flow guide body, characterized in that: The following steps are involved: S1, placing the buckle ring cover (3) with its opening facing upward on the buckle ring cover positioning mold (5) for positioning; S2, place the buckle (2) concentrically inside the buckle cover (3); S3, placing the guide body (1) with its opening facing downward on a guide body positioning mold (5) for positioning; S4, punching the flow guide body (1) to achieve press-fitting.

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