An exhaust gas recirculation valve assembly bushing press fitting device

Abstract

The application discloses a kind of exhaust gas recirculation valve assembly bushing press fitting device, belong to bushing press fitting technical field, the surface of bottom plate is fixedly connected with symmetrical support block, the side surface of support block is provided with sliding slot, the inner wall of sliding slot is slidably connected with sliding block, the surface of sliding block is fixedly connected with clamping block, the side surface of clamping block is sleeved with fastening rod, the end surface of support block is provided with guide hole, the inner wall of guide hole is slidably connected with guide rod, the exhaust gas recirculation valve assembly bushing press fitting device can be set screw rod and extruding rod, can be under the action of thread, stably push extruding plate and extruding block to move downwards, in turn drive bushing to press into recirculation valve assembly, improve the installation stability and accuracy of bushing, will not impact recirculation valve assembly, and set adjustable position's clamping block and replaceable extruding rod, it is convenient to fix different sizes of recirculation valve assembly and press different sizes of bushing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bushing press-fitting, in particular to a waste gas recirculation valve assembly bushing press-fitting device. BACKGROUND

[0002] Valves are used to open and close pipelines, control flow direction, adjust and control parameters (temperature, pressure and flow) of the conveyed medium.

[0003] At present, there are various types of valves, including recirculation valves. During the assembly of the recirculation valve, a press-fitting device is needed to install the bushing. However, the general bushing is installed by impact force during the installation process. For example, the lower press-fitting assembly and press-fitting tool for preventing leakage and shrinkage of the bushing disclosed in the announcement No. CN214292909U cannot accurately install the bushing during the assembly process. Moreover, the impact force will cause impact on the valve body, and different sizes of bushings and valve assemblies cannot be installed. Therefore, the waste gas recirculation valve assembly bushing press-fitting device is designed to solve the above problems. SUMMARY

[0004] In view of the problems in the prior art, the purpose of the present application is to provide a waste gas recirculation valve assembly bushing press-fitting device. The waste gas recirculation valve assembly bushing press-fitting device is provided with a lead screw and an extrusion rod. Under the action of the screw thread, the extrusion plate and the extrusion block are stably pushed downward to move downward, thereby driving the bushing to press into the recirculation valve assembly. The installation stability and accuracy of the bushing are improved, the recirculation valve assembly is not impacted, and the adjustable position clamping block and the replaceable extrusion rod are provided to facilitate the fixation of recirculation valve assemblies of different sizes and the press-fitting of bushings of different sizes.

[0005] To solve the above problems, the present application adopts the following technical solutions.

[0006] The exhaust gas recirculation valve assembly bushing press-fitting device comprises a base plate, the surface of the base plate is fixedly connected with symmetrical support blocks, the side surface of the support block is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, the surface of the sliding block is fixedly connected with a clamping block, the side surface of the clamping block is sleeved with a fastening rod, one end surface of the support block is provided with a guide hole, the inner wall of the guide hole is slidably connected with a guide rod, the surface of the guide rod is fixedly sleeved with a limiting block, one end of the guide rod is fixedly connected with a lifting plate, the surface of the lifting plate is fixedly installed with a motor, the output end of the motor is fixedly installed with four, the surface of the screw rod is threadedly connected with an extrusion rod, one end of the extrusion rod is provided with a threaded hole, the other end of the extrusion rod is fixedly connected with an extrusion plate and an extrusion block, and the surface of the extrusion rod is slidably sleeved with a guide sleeve, the threaded hole in the threaded rod and the extrusion rod can stably push the extrusion plate and the extrusion block downwards under the action of the thread, thereby driving the bushing to press into the recirculation valve assembly, improving the installation stability and accuracy of the bushing, and avoiding the impact on the recirculation valve assembly, and the clamping block with adjustable position and the replaceable extrusion rod facilitate the fixation of recirculation valve assemblies of different sizes and the press-fitting of bushings of different sizes.

[0007] Further, the inner wall of the sliding groove is provided with an adjusting hole, and the adjusting hole is distributed at equal intervals along the length direction of the sliding groove.

[0008] Further, the inner wall of the adjusting hole is threadedly connected with the surface of the fastening rod, and the adjusting holes distributed with the lamp pins facilitate the user to quickly fix the moving position of the clamping block through the fastening rod, thereby improving the installation efficiency of the recirculation valve assembly.

[0009] Further, one end of the guide hole is communicated with a positioning groove, and the cross section of the positioning groove is circular.

[0010] Further, the depth of the positioning groove is less than the height of the limiting block, the positioning groove can limit the downward movement position of the limiting block, and can also avoid the horizontal movement of the limiting block, thereby having the limiting and guiding effects.

[0011] Further, the central position of the guide sleeve is provided with a guide hole, and the inner wall of the guide hole is in contact with the surface of the extrusion rod.

[0012] Further, the guide hole is polygonal in shape, and the guide sleeve can avoid the rotation of the extrusion rod along with the screw rod, so that the extrusion rod can only move in the vertical direction.

[0013] Further, the side surface of the guide sleeve is detachably connected with a horizontal rod.

[0014] Further, the other end of the cross bar is fixedly connected with the surface of the limiting block, the cross bar is arranged to make the guide sleeve have a dismounting function, so that the extrusion rod has a disassembly and combination function.

[0015] Compared with the prior art, the application has the advantages that:

[0016] (1) The screw rod and the extrusion rod are arranged, the extrusion plate and the extrusion block can be stably pushed downward under the action of threads, the bushing is driven to press into the recirculation valve assembly, the installation stability and accuracy of the bushing are improved, the recirculation valve assembly is not impacted, and the adjustable position clamping block and the replaceable extrusion rod are arranged, so that different sizes of the recirculation valve assembly and the bushing are conveniently fixed and pressed.

[0017] (2) The adjusting holes are arranged on the inner wall of the sliding groove and are distributed at equal intervals along the length direction of the sliding groove, the inner wall of the adjusting hole is threadedly connected with the surface of the fastening rod, the adjusting holes are arranged at the lamp feet, the user can conveniently and quickly fix the moving position of the clamping block through the fastening rod, and the installation efficiency of the recirculation valve assembly is improved.

[0018] (3) The positioning groove is communicated with one end of the guide hole, the cross section of the positioning groove is circular, and the depth of the positioning groove is less than the height of the limiting block; the positioning groove is arranged to limit the downward movement position of the limiting block and avoid horizontal movement of the limiting block.

[0019] (4) The guide hole is arranged at the center position of the guide sleeve, the inner wall of the guide hole is in surface contact connection with the surface of the extrusion rod, and the guide hole is polygonal; the guide sleeve is arranged to avoid rotation of the extrusion rod with the screw rod, so that the extrusion rod can only move in the vertical direction.

[0020] (5) The cross bar is detachably connected with the side surface of the guide sleeve, and the other end of the cross bar is fixedly connected with the surface of the limiting block; the cross bar is arranged to make the guide sleeve have a dismounting function, so that the extrusion rod has a disassembly and combination function. DETAILED DESCRIPTION

[0021] Figure 1 It is a schematic view of the overall structure of the application;

[0022] Figure 2 It is an enlarged view of A of Figure 1

[0023] Figure 3 It is a top view of the installation structure of the guide sleeve and the extrusion rod of the application.

[0024] Explanation of reference numerals in the drawing:

[0025] ​1 bottom plate, 2 support block, 21 positioning groove, 22 guide hole, 23 sliding slot, 24 adjusting hole, 3 clamping block, 31 sliding block, 32 fastening rod, 4 lifting plate, 41 guide rod, 42 limiting block, 43 cross bar, 5 guide sleeve, 51 guide hole, 6 motor, 61 screw rod, 62 extrusion rod, 63 threaded hole, 64 extrusion plate, 65 extrusion block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-3 A waste gas recirculation valve assembly bushing press-fitting device, comprising a bottom plate 1, please refer to Figures 1-3 The surface of the bottom plate 1 is fixedly connected with symmetrical support blocks 2, the bottom plate 1 is fastened with a press-fitting device workbench, the side surface of the support block 2 is provided with a sliding slot 23, the inner wall of the sliding slot 23 is slidably connected with a sliding block 31, the surface of the sliding block 31 is fixedly connected with a clamping block 3, the symmetrical clamping blocks 3 are used to fix the position of the valve assembly, the side surface of the clamping block 3 is sleeved with a fastening rod 32, the fastening rod 32 is manually controlled, facilitating the movement of the clamping block 3 to clamp the valve body assembly, one end surface of the support block 2 is provided with a guide hole 22, the inner wall of the guide hole 22 is slidably connected with a guide rod 41, the surface of the guide rod 41 is fixedly sleeved with a limiting block 42, one end of the guide rod 41 is fixedly connected with a lifting plate 4, the lifting plate 4 is fastened with a press-fitting device lifting rod, having the function of moving up and down, facilitating the assembly and disassembly of the recirculation valve assembly, the surface of the lifting plate 4 is fixedly installed with a motor 6, the motor 6 is a forward and reverse motor, belonging to the prior art, being provided with a speed reducer and a controller and other accessories, used to drive the screw rod 61 to rotate clockwise and counterclockwise, the output end of the motor 6 is fixedly installed with four 61, the surface of the screw rod 61 is threadedly connected with an extrusion rod 62, under the action of the thread, the extrusion rod 62 moves downward when the screw rod 61 rotates clockwise, the extrusion rod 62 moves upward when the screw rod 61 rotates counterclockwise, one end of the extrusion rod 62 is provided with a threaded hole 63, the other end of the extrusion rod 62 is fixedly connected with an extrusion plate 64 and an extrusion block 65, the extrusion block 65 is sleeved with the center hole of the bushing, avoiding deformation of the bushing when it is extruded, the surface of the extrusion rod 62 is slidably sleeved with a guide sleeve 5.

[0028] Please refer to Figure 1 And 2The inner wall of the sliding groove 23 is provided with an adjusting hole 24, which is distributed at equal intervals along the length direction of the sliding groove 23. The inner wall of the adjusting hole 24 is threadedly connected with the surface of the fastening rod 32. The adjusting hole 24 is distributed with lamp pins, which facilitates the user to quickly fix the moving position of the clamping block 3 through the fastening rod 32, improves the installation efficiency of the recirculation valve assembly, and the one end of the guide hole 22 is communicated with the positioning groove 21. The cross-sectional shape of the positioning groove 21 is circular, and the depth of the positioning groove 21 is smaller than the height of the limiting block 42. The positioning groove 21 can limit the downward movement position of the limiting block 42, and can also avoid the horizontal movement of the limiting block 42, and has the function of limiting and guiding.

[0029] Please refer to Figure 1 and 3 The center of the guide sleeve 5 is provided with a guide hole 51, and the inner wall of the guide hole 51 is in surface contact with the extrusion rod 62. The shape of the guide hole 51 is polygonal. The guide sleeve 5 can avoid the rotation of the extrusion rod 62 with the screw rod 61, so that the extrusion rod 62 can only move in the vertical direction. The side surface of the guide sleeve 5 is detachably connected with the cross bar 43, and the other end of the cross bar 43 is fixedly connected with the surface of the limiting block 42. The cross bar 43 makes the guide sleeve 5 have the function of disassembly, so that the extrusion rod 62 has the function of disassembly and combination.

[0030] When the exhaust gas recirculation valve assembly bushing press-fitting device works, the recirculation valve assembly is first fixed on the surface of the bottom plate 1 through the clamping block 3, and then the lifting plate 4 is driven by the lifting rod to move downward. The downward movement of the lifting plate 4 makes the guide rod 41 downwardly inserted into the guide hole 22, and the limiting block 42 is sleeved into the positioning groove 21. At this time, the extrusion block 65 is sleeved into the center hole of the bushing, and the extrusion plate 64 is in contact with the end surface of the bushing. Then the motor 6 is started, and the clockwise rotation of the motor 6 drives the extrusion rod 62 to move downward. The downward movement of the extrusion rod 62 drives the extrusion plate 64 to push the bushing downward, and the bushing is press-fitted into the recirculation valve assembly. When the press-fitting position of the bushing is appropriate, the motor 6 drives the screw rod 61 to rotate counterclockwise, thereby driving the extrusion rod 62 to move upward. Through the setting of the screw rod 61 and the extrusion rod 62, the extrusion plate 64 and the extrusion block 65 can be stably pushed downward under the action of the screw thread, thereby driving the bushing to press into the recirculation valve assembly, improving the installation stability and precision of the bushing, and avoiding the impact on the recirculation valve assembly. The clamping block 3 with adjustable position is convenient for fixing recirculation valve assemblies of different sizes. When bushings of different sizes are installed, the cross bar 43 can be removed, and then the extrusion roller 62 is removed, and the extrusion rod 62 with different sizes of extrusion plate 64 and extrusion block 65 is replaced, thereby facilitating the press-fitting of bushings of different sizes, and increasing the application range of the press-fitting device.

[0031] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution of the present application and the improved concept thereof, makes equivalent replacement or change within the technical range disclosed by the present application, and should be covered within the protection scope of the present application.

Claims

1. An exhaust gas recirculation valve assembly bushing press fitting device comprising a base plate (1), characterized in that: The surface of the bottom plate (1) is fixedly connected with symmetrical supporting blocks (2), the side surface of the supporting block (2) is provided with a sliding groove (23), the inner wall of the sliding groove (23) is slidably connected with a sliding block (31), the surface of the sliding block (31) is fixedly connected with a clamping block (3), the side surface of the clamping block (3) is sleeved with a fastening rod (32), one end surface of the supporting block (2) is provided with a guide hole (22), the inner wall of the guide hole (22) is slidably connected with a guide rod (41), the surface of the guide rod (41) is fixedly sleeved with a limiting block (42), one end of the guide rod (41) is fixedly connected with a lifting plate (4), the surface of the lifting plate (4) is fixedly installed with a motor (6), the output end of the motor (6) is fixedly installed with a lead screw (61), the surface of the lead screw (61) is threadedly connected with an extrusion rod (62), one end of the extrusion rod (62) is provided with a threaded hole (63), the other end of the extrusion rod (62) is fixedly connected with an extrusion plate (64) and an extrusion block (65), the surface of the extrusion rod (62) is slidably sleeved with a guide sleeve (5), the inner wall of the sliding groove (23) is provided with an adjusting hole (24), the adjusting holes (24) are equidistantly distributed along the length direction of the sliding groove (23), one end of the guide hole (22) is communicated with a positioning groove (21), the cross section shape of the positioning groove (21) is circular.

2. An exhaust gas recirculation valve assembly bushing press fitting device according to claim 1, characterized in that: The inner wall of the adjusting hole (24) is threadedly connected with the surface of the fastening rod (32).

3. An exhaust gas recirculation valve assembly bushing press fitting device according to claim 1, characterized in that: The depth of the positioning groove (21) is less than the height of the limiting block (42).

4. A device for press fitting a valve liner for an exhaust gas recirculation valve assembly, according to claim 1, wherein: The central position of the guide sleeve (5) is provided with a guide hole (51), the inner wall of the guide hole (51) is in contact with the surface of the extrusion rod (62).

5. An exhaust gas recirculation valve assembly bushing press fitting device according to claim 4, characterized in that: The shape of the guide hole (51) is polygonal.

6. A device for press fitting a valve liner for an exhaust gas recirculation valve assembly, according to claim 1, wherein: The side surface of the guide sleeve (5) is detachably connected with a cross rod (43).

7. An exhaust gas recirculation valve assembly bushing press fitting device according to claim 6, characterized in that: The other end of the cross rod (43) is fixedly connected with the surface of the limiting block (42).

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