Piston inserting mechanism of ABS valve body

Abstract

The utility model discloses a piston inserting mechanism of an ABS valve body. The piston inserting mechanism comprises a machine base, a press fitting assembly, a guide assembly and a clamping assembly. The clamping assembly is used for clamping and fixing the ABS valve body in the posture that a mounting hole faces upwards. The press-fitting assembly comprises a lifting driving device, a mounting block and a floating pressing column; the mounting block is fixedly connected to a lifting sliding block of the lifting driving device, a mounting groove is formed in the mounting block, the upper portion of the floating pressing column is arranged in the mounting groove and is in clearance fit with the mounting groove, and the lower portion of the floating pressing column extends out of the mounting groove and is used for being connected with a piston workpiece; the guide assembly comprises a mounting plate and a guide sleeve, the mounting plate is connected to the machine base, a through hole penetrating up and down is formed in the mounting plate, and the guide sleeve is fixedly arranged in the through hole; the mounting plate is arranged between the press-fitting assembly and the clamping assembly, and the floating pressing column, the guide sleeve and the mounting hole are axially aligned from top to bottom; the position of the floating pressing column can be automatically adjusted in the press-fitting process, and it is ensured that a piston workpiece is accurately aligned with a mounting hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to the automobile ABS valve production and manufacturing technical field, specifically relates to a piston inserting mechanism of ABS valve body. BACKGROUND

[0002] ABS valve (namely anti-lock braking system valve) is an important component in automobile braking system, wherein, when the piston workpiece moves in the installation hole of ABS valve body, the flow path of brake fluid in the valve body can be changed, so that the pressure of brake fluid is changed.

[0003] In the production process of ABS valve, accurately installing the piston workpiece into the corresponding installation hole of ABS valve body is a key step. The traditional method usually uses a clamp to move the piston workpiece to a position roughly aligned with the installation hole, and then uses a press tool to directly press the piston workpiece into the installation hole. However, on the automatic assembly line, due to the precision limitation of the equipment itself and the inevitable error in the processing process, it is often difficult for the piston workpiece to perfectly align with the installation hole.

[0004] In actual operation, even if the piston workpiece can be pressed into the installation hole, it is also easy to knock against the outer periphery of the installation hole during installation, resulting in damage to the surface of the piston workpiece. This damage not only affects the performance of the piston workpiece, but also may have a negative impact on the overall quality and reliability of the ABS valve. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems existing in the prior art, and provides a piston inserting mechanism of ABS valve body. The floating press column can automatically adjust the position during the pressing process, ensuring the accurate alignment of the piston workpiece and the installation hole, and avoiding the knocking damage caused by the equipment precision and processing error, thereby solving the problem of difficult alignment of the piston workpiece and the installation hole in the traditional pressing process.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] The piston inserting mechanism of the ABS valve body comprises a base, a pressing assembly, a guiding assembly and a clamping assembly; the clamping assembly is used for clamping and fixing the ABS valve body in an attitude with the mounting hole upward; the pressing assembly comprises a lifting driving device, a mounting block and a floating pressing column; the mounting block is fixedly connected to the lifting slider of the lifting driving device, and the mounting block is provided with a mounting groove; the upper part of the floating pressing column is arranged in the mounting groove in clearance fit; the lower part of the floating pressing column extends out of the mounting groove and is used for connecting the piston workpiece; the guiding assembly comprises a mounting plate and a guiding sleeve; the mounting plate is connected to the base and is provided with a through hole penetrating from top to bottom; the guiding sleeve is fixedly arranged in the through hole; the mounting plate is arranged between the pressing assembly and the clamping assembly; and the floating pressing column, the guiding sleeve and the mounting hole of the ABS valve body are axially aligned from top to bottom.

[0008] Further, the cross section of the mounting groove is T-shaped, the cross section of the floating pressing column is also T-shaped, the upper end of the floating pressing column is provided with a stop head, and the stop head and the mounting groove form a step structure, thereby limiting the lower position of the floating pressing column.

[0009] Further, one side of the mounting block is provided with a horizontally extending first threaded hole connected with the mounting groove; the first threaded hole is provided with a first adjusting stud; the first adjusting stud is used for contacting the rod body part of the floating pressing column; one side of the mounting block is provided with a vertically extending second threaded hole connected with the mounting groove; the second threaded hole is provided with a second adjusting stud; the second adjusting stud is used for contacting the upper end surface of the floating pressing column; the first threaded hole and the second threaded hole are respectively arranged on the opposite sides of the axis of the floating pressing column.

[0010] Further, the inside of the floating pressing column is provided with a negative pressure air duct; one end of the negative pressure air duct extends to the lower end surface of the floating pressing column and is used for adsorbing the piston workpiece; one side of the upper end part of the floating pressing column is connected with an air pipe joint; one side of the mounting block is provided with an avoiding groove; the air pipe joint extends out of the mounting block from the avoiding groove.

[0011] Further, the guiding assembly further comprises a lifting adjusting device; the lifting adjusting device is fixedly connected to the base; and the mounting plate is connected to the lifting slider of the lifting adjusting device.

[0012] Further, the clamping assembly comprises a backrest plate, a bottom support plate and two clamp assemblies; the backrest plate and the bottom support plate are respectively fixedly connected to the base; the backrest plate is used for contacting the back of the ABS valve body; and the bottom support plate is used for contacting the bottom of the ABS valve body; the two clamp assemblies are symmetrically arranged on the two sides of the front end surface of the ABS valve body and press the ABS valve body against the backrest plate.

[0013] Further, the clamp assembly comprises a linear driving device, a fulcrum frame, a connecting rod and a clamping jaw; the linear driving device is horizontally fixedly connected to the backrest plate, the fulcrum frame is fixedly connected to a housing of the linear driving device, the middle part of the connecting rod is rotatably connected to the fulcrum frame, one end of the connecting rod is rotatably connected to a movable rod of the linear driving device, and the other end of the connecting rod is fixedly connected to the clamping jaw.

[0014] Further, the mounting block is connected with two floating pressing columns, the mounting plate is provided with two through holes penetrating from top to bottom, each through hole is provided with a guide sleeve, the guide sleeve is in gap cooperation with the through hole and is fixed through bolts.

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

[0016] By introducing the gap cooperation design of the floating pressing column and the mounting groove and setting the guide sleeve as the accurate guide element, the floating pressing column can automatically adjust the position in the pressing process, the accurate alignment of the piston workpiece and the mounting hole is ensured, the bump damage caused by the equipment precision and the machining error is avoided, and the problem of difficult alignment of the piston workpiece and the mounting hole in the traditional pressing process is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the overall structure schematic view of piston plug-in installation mechanism in an embodiment of the application;

[0019] Figure 2 It is the structure schematic view of mounting block, floating pressing column and guide assembly in an embodiment of the application;

[0020] Figure 3 It is Figure 2 the front view sectional view;

[0021] Figure 4 It is the structure schematic view of clamp assembly in an embodiment of the application;

[0022] In the figure: 1, base; 2, lifting driving device; 3, mounting block; 4, floating pressure column; 4a, stop head; 5, piston workpiece; 6, mounting plate; 7, guide sleeve; 8, first adjusting stud; 9, second adjusting stud; 10, negative pressure air duct; 11, air pipe joint; 12, backrest plate; 13, bottom support plate; 14, ABS valve body; 15, linear driving device; 16, fulcrum frame; 17, connecting rod; 18, clamping jaw. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only some 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 labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the production process of the ABS valve, accurately installing the piston workpiece into the corresponding mounting hole of the ABS valve body is a key step. In the traditional method, the piston workpiece is first moved to a position roughly aligned with the mounting hole by using a clamp, and then the piston workpiece is directly pressed into the mounting hole by using a press-fitting tool. However, on an automatic assembly line, due to the precision limitation of the equipment itself and the inevitable errors in the machining process, it is often difficult for the piston workpiece to be perfectly aligned with the mounting hole.

[0028] In actual operation, even if the piston workpiece can be pressed into the mounting hole with difficulty, it is easy to collide with the outer periphery of the mounting hole during installation, thereby causing damage to the surface of the piston workpiece. Such damage not only affects the performance of the piston workpiece, but also can have a negative impact on the overall quality and reliability of the ABS valve.

[0029] In view of the above technical problems, as shown in Figures 1 to 4 The piston insertion mechanism of the ABS valve body provided by the embodiments of the present application includes a machine base 1, a press-fitting assembly, a guide assembly, and a clamping assembly. The clamping assembly is used to clamp and fix the ABS valve body in a posture with the mounting hole facing upward. The press-fitting assembly includes a lifting driving device 2, a mounting block 3, and a floating press column 4. The mounting block 3 is fixedly connected to the lifting sliding block of the lifting driving device, and the mounting block 3 is provided with a mounting groove. The upper part of the floating press column 4 is arranged in the mounting groove in a clearance fit with the mounting groove, and the lower part of the floating press column 4 extends out of the mounting groove and is used to connect the piston workpiece 5. The guide assembly includes a mounting plate 6 and a guide sleeve 7. The mounting plate 6 is connected to the machine base 1 and is provided with a through hole penetrating from top to bottom. The guide sleeve 7 is fixedly arranged in the through hole. The mounting plate 6 is arranged between the press-fitting assembly and the clamping assembly, and the floating press column 4, the guide sleeve 7, and the mounting hole of the ABS valve body are axially aligned from top to bottom.

[0030] During press-fitting, the piston insertion mechanism of the ABS valve body fixes the ABS valve body in a posture with the mounting hole facing upward by the clamping assembly and ensures that the horizontal position is adjusted to the mounting hole being axially aligned with the guide sleeve 7. The lifting driving device 2 in the press-fitting assembly drives the mounting block 3 to descend. Due to the clearance fit design between the floating press column 4 in the mounting block 3 and the mounting groove, the floating press column 4 has floating flexibility in the horizontal direction. When the piston workpiece 5 is connected to the lower end of the floating press column 4 and descends with the mounting block 3, even if there is a slight deviation in the initial position, the floating press column 4 can slightly deviate horizontally during the process of passing through the guide sleeve 7, and finally is perfectly aligned with the mounting hole of the ABS valve body under the guidance of the guide sleeve 7, thereby realizing the accurate press-fitting of the piston workpiece 5.

[0031] The embodiments of the present application solve the problem of difficult alignment of the piston workpiece 5 and the mounting hole in the traditional pressing process by introducing the clearance fit between the floating pressing column 4 and the mounting groove and setting the guide sleeve 7 as a precise guide element. During the pressing process, the floating pressing column 4 can automatically adjust the position to ensure the precise alignment of the piston workpiece 5 and the mounting hole, avoid the bump damage caused by the equipment precision and processing error, improve the assembly precision, protect the integrity of the piston workpiece 5, and improve the overall quality of the ABS valve.

[0032] In some embodiments, the cross section of the mounting groove is T-shaped, and the cross section of the floating pressing column 4 is also T-shaped. The upper end of the floating pressing column 4 is provided with a stop head 4a, and the stop head 4a and the mounting groove form a stepped structure to limit the lower position of the floating pressing column 4.

[0033] The cross sections of the mounting groove and the floating pressing column 4 are designed to be T-shaped, so that the floating pressing column 4 can be stably installed in the mounting groove while maintaining a certain gap to allow horizontal floating. The upper end of the floating pressing column 4 is provided with a stop head 4a, and the stop head 4a and the mounting groove form a stepped structure. When the floating pressing column 4 is suspended, the stop head 4a interacts with the stepped structure of the mounting groove to limit the lower position of the floating pressing column 4, which can prevent it from falling out of the mounting groove. When the lifting driving device 2 drives the mounting block 3 to descend, the floating pressing column 4 contacts the upper wall of the mounting groove through its stop head 4a, which increases the contact area and ensures the stability of the pressing process.

[0034] In some embodiments, one side of the mounting block 3 is provided with a horizontally extending first threaded hole connected with the mounting groove, and a first adjusting stud 8 is arranged in the first threaded hole to contact the rod body of the floating pressing column 4. One side of the mounting block 3 is provided with a vertically extending second threaded hole connected with the mounting groove, and a second adjusting stud 9 is arranged in the second threaded hole to contact the upper end surface of the floating pressing column 4. The first threaded hole and the second threaded hole are respectively arranged on the opposite sides of the axis of the floating pressing column 4.

[0035] By rotating the first adjusting stud 8 and the second adjusting stud 9, their positions in the horizontal direction and the vertical direction can be adjusted respectively, so as to finely adjust the position and floating range of the floating pressing column 4 in the mounting groove. On the other hand, by arranging the first threaded hole and the second threaded hole on the opposite sides of the axis of the floating pressing column 4, the floating pressing column 4 can be horizontally offset as a whole when passing through the guide sleeve 7, even if it is subjected to a force on one side, so as to adjust its position.

[0036] In some embodiments, the inner part of the floating pressure column 4 is provided with a negative pressure air duct 10, one end of which extends to the lower end face of the floating pressure column 4 for adsorbing the piston workpiece 5; the upper end of the floating pressure column 4 is connected with an air pipe joint 11, and one side of the mounting block 3 is provided with a avoiding slot, and the air pipe joint 11 extends out of the mounting block 3 from the avoiding slot.

[0037] By arranging the negative pressure air duct 10 in the inner part of the floating pressure column 4, the automatic adsorption of the piston workpiece 5 is realized, and the degree of automation in the assembly process is improved. During assembly, the piston workpiece 5 does not need to be manually fixed, but can be adsorbed on the floating pressure column 4 by negative pressure adsorption, and then pressure assembly operation is performed, thereby simplifying the assembly process.

[0038] In some embodiments, the guide assembly further comprises a lifting adjusting device, which is fixedly connected to the machine base 1, and the mounting plate 6 is connected to the lifting slide block of the lifting adjusting device.

[0039] Through the driving of the lifting adjusting device, the mounting plate 6 can move up and down along the vertical direction. Since the guide sleeve 7 is fixedly arranged in the through hole of the mounting plate 6, the position of the guide sleeve 7 will be adjusted accordingly with the up and down movement of the mounting plate 6, thereby meeting different assembly requirements and improving flexibility.

[0040] In some embodiments, the clamping assembly comprises a backrest plate 12, a bottom support plate 13 and two clamp assemblies, the backrest plate 12 and the bottom support plate 13 are fixedly connected to the machine base 1, the backrest plate 12 is used to contact the back of the ABS valve body 14, and the bottom support plate 13 is used to contact the bottom of the ABS valve body 14; the two clamp assemblies are symmetrically arranged on both sides of the front end face of the ABS valve body 14, and the ABS valve body 14 is pressed tightly against the backrest plate 12.

[0041] The backrest plate 12 and the bottom support plate 13 are fixedly connected to the machine base 1, and provide two-way support for the ABS valve body 14. The two clamp assemblies are symmetrically arranged on both sides of the ABS valve body 14, and the clamp action is realized to clamp the ABS valve body 14, thereby ensuring the position stability of the ABS valve body 14 during assembly. On the other hand, since the clamp assembly only exerts force on the end face of the ABS valve body 14, it will not rigidly block the horizontal movement of the ABS valve body 14, so that the position of the ABS valve body 14 can be adjusted to accurately align the mounting hole with the guide sleeve 7.

[0042] In some embodiments, the clamp assembly comprises a linear drive device 15, a fulcrum frame 16, a connecting rod 17 and a clamping jaw 18; the linear drive device 15 is horizontally fixedly connected to the backrest plate 12, the fulcrum frame 16 is fixedly connected to the housing of the linear drive device 15, the middle part of the connecting rod 17 is rotatably connected to the fulcrum frame 16, one end of the connecting rod 17 is rotatably connected to the movable rod of the linear drive device 15, and the other end of the connecting rod 17 is fixedly connected to the clamping jaw 18. Through the driving force provided by the linear drive device 15, the flexible clamping and loosening of the clamping jaw 18 are realized by cooperating with the rotating mechanism of the fulcrum frame 16 and the connecting rod 17.

[0043] In some embodiments, the mounting block 3 is connected with two floating pressing columns 4, the mounting plate 6 is provided with two through holes penetrating from top to bottom, each through hole is provided with a guide sleeve 7, the guide sleeve 7 is in clearance fit with the through hole and is fixed by a bolt.

[0044] The guide sleeve 7 is in clearance fit with the through hole and is fixed by a bolt, so that the adjustability of the guide sleeve 7 in the through hole is ensured. When two piston workpieces need to be pressed, the relative positions of the two guide sleeves 7 can be slightly adjusted according to the actual positions of the two mounting holes on the ABS valve body 14, so that the two mounting holes are aligned respectively, thereby ensuring that the floating pressing column 4 can accurately press the piston workpiece into place.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A piston plug mechanism of an ABS valve body, characterized by, It comprises a base (1), a pressing assembly, a guiding assembly and a clamping assembly; the clamping assembly is used for clamping and fixing the ABS valve body in an attitude with the mounting hole upward; The pressing assembly comprises a lifting driving device (2), a mounting block (3) and a floating pressing column (4); the mounting block (3) is fixedly connected to the lifting sliding block of the lifting driving device, the mounting block (3) is provided with a mounting groove, the upper part of the floating pressing column (4) is arranged in the mounting groove and gap-fitted with the mounting groove, the lower part of the floating pressing column (4) extends out of the mounting groove and is used for connecting the piston workpiece (5); The guiding assembly comprises a mounting plate (6) and a guiding sleeve (7); the mounting plate (6) is connected to the base (1); the mounting plate (6) is provided with a through hole penetrating from top to bottom; the guiding sleeve (7) is fixedly arranged in the through hole; The mounting plate (6) is arranged between the pressing assembly and the clamping assembly; the floating pressing column (4), the guiding sleeve (7) and the ABS valve body mounting hole are axially aligned from top to bottom.

2. An ABS valve body piston insert mechanism according to claim 1 wherein, The cross section of the mounting groove is T-shaped; the cross section of the floating pressing column (4) is also T-shaped; the upper end of the floating pressing column (4) is provided with a stop head (4a); the stop head (4a) and the mounting groove form a stepped structure, thereby limiting the lower position of the floating pressing column (4).

3. An ABS valve body piston insert mechanism according to claim 1 wherein, One side of the mounting block (3) is provided with a horizontally extending first threaded hole connected with the mounting groove; the first threaded hole is provided with a first adjusting stud (8); the first adjusting stud (8) is used for contacting the rod body part of the floating pressing column (4); one side of the mounting block (3) is provided with a vertically extending second threaded hole connected with the mounting groove; the second threaded hole is provided with a second adjusting stud (9); the second adjusting stud (9) is used for contacting the upper end surface of the floating pressing column (4); the first threaded hole and the second threaded hole are respectively arranged on the opposite sides of the floating pressing column (4) along the axis.

4. The piston insert mechanism of an ABS valve body according to claim 1, wherein The inner part of the floating pressing column (4) is provided with a negative pressure air channel (10); one end of the negative pressure air channel (10) extends to the lower end surface of the floating pressing column (4) and is used for adsorbing the piston workpiece (5); one side of the upper end part of the floating pressing column (4) is connected with an air pipe joint (11); one side of the mounting block (3) is provided with an avoiding groove; the air pipe joint (11) extends out of the mounting block (3) from the avoiding groove.

5. The piston insert mechanism of an ABS valve body according to claim 1, wherein The guiding assembly further comprises a lifting adjusting device; the lifting adjusting device is fixedly connected to the base (1); the mounting plate (6) is connected to the lifting sliding block of the lifting adjusting device.

6. An ABS valve body piston insert mechanism according to claim 1 wherein, The clamping assembly comprises a backrest plate (12), a bottom support plate (13) and two clamp assemblies; the backrest plate (12) and the bottom support plate (13) are respectively fixedly connected to the base (1); the backrest plate (12) is used for contacting the back part of the ABS valve body (14); the bottom support plate (13) is used for contacting the bottom part of the ABS valve body (14); Two said clamp assemblies are symmetrically arranged on both sides of the front end face of the ABS valve body (14), and the ABS valve body (14) is pressed against the backrest plate (12).

7. An ABS valve body piston insert mechanism according to claim 6 wherein, The clamp assembly comprises a linear drive device (15), a fulcrum frame (16), a connecting rod (17) and a clamp jaw (18); the linear drive device (15) is horizontally fixedly connected to the backrest plate (12), the fulcrum frame (16) is fixedly connected to the housing of the linear drive device (15), the middle part of the connecting rod (17) is rotatably connected to the fulcrum frame (16), one end of the connecting rod (17) is rotatably connected to the movable rod of the linear drive device (15), and the other end of the connecting rod (17) is fixedly connected to the clamp jaw (18).

8. The piston insert mechanism of an ABS valve body according to claim 1, wherein Two said floating pressure columns (4) are connected to the mounting block (3), the mounting plate (6) is provided with two through holes penetrating from top to bottom, a guide sleeve (7) is arranged in each said through hole, the guide sleeve (7) is in clearance fit with the through hole, and the guide sleeve (7) is fixed by a bolt.

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