Automatic assembling device for brake valve body

Abstract

The utility model provides a brake valve body automatic assembling device which comprises a bottom plate, a positioning plate and a positioning pressing rod, a brake valve body is clamped on a limiting groove of the bottom plate, the positioning plate is installed above the bottom plate through a positioning air cylinder, positioning blocks are arranged at the bottom of the positioning plate, and the positioning blocks are just located over installation grooves in the brake valve body one by one. The positioning plate is provided with through holes at the positioning blocks; the positioning pressing rods are installed above the bottom plate through the crimping air cylinders and are just located over the through holes in the positioning plate one by one. And the clamp spring, the valve pressing plate sleeved with the sealing O-shaped ring and the rubber coating valve are tightly sleeved at the bottom of the positioning pressing rod in sequence from top to bottom. According to the device, automatic assembly of the brake valve body and internal parts (the clamping spring, the sealing O-shaped ring, the valve pressing plate, the rubber coating valve and the guide sleeve) of the brake valve body can be achieved, the assembly efficiency is improved, the labor cost is reduced, the product stability and consistency are good, and the device safety is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive solenoid valve technology, and in particular to an automated assembly device for brake valve bodies. Background Technology

[0002] Electronic Braking System (EBS) represents a significant technological innovation in vehicle braking systems. It electronically activates all braking system components, achieving braking consistency between the tractor and trailer, providing comfortable deceleration control, and enabling continuous self-testing through integrated diagnostic and monitoring functions. The EBS system comprises brake signal sensors, a central controller (ECU), proportional relay valves, a rear axle adjuster, ABS solenoid valves, trailer control valves, wheel speed sensors, and brake pad wear sensors. These components collectively form the core of the EBS system, enabling electronically controlled braking. The standardization and high integration of EBS components are crucial for reducing production and installation costs and improving vehicle fuel economy. The brake valve body and its internal parts are vital components of valve products and also the actuators of the EBS system. Currently, the assembly of brake valve bodies and their internal parts suffers from low automation, numerous and complex processes, and high manufacturing costs. Furthermore, the installation of internal parts in the brake valve body is prone to incomplete installation, resulting in poor product consistency and a high defect rate. Therefore, achieving automated assembly of the brake valve body would greatly benefit the application of EBS systems. Summary of the Invention

[0003] This utility model provides an automated assembly device for brake valve bodies. This device can realize the automated assembly of brake valve bodies and their internal parts (circlip, sealing O-ring, valve pressure plate, rubber-coated valve, guide sleeve), improve assembly efficiency, reduce labor costs, ensure good product stability and consistency, and ensure high device safety.

[0004] The technical solution adopted to achieve the above-mentioned objectives of this utility model is as follows:

[0005] An automated assembly device for a brake valve body is provided. The brake valve body has an installation groove. The automated assembly device assembles a retaining ring, a sealing O-ring, a valve pressure plate, a rubber-coated valve, and a guide sleeve into the installation groove. The automated assembly device for the brake valve body includes:

[0006] The base plate has a limit groove, the brake valve body is locked in the limit groove, and the guide sleeve is placed at the bottom of the mounting groove on the brake valve body.

[0007] The positioning plate is mounted on top of the base plate via a positioning cylinder, and moves up and down with the positioning cylinder. The positioning plate is parallel to the base plate. The bottom of the positioning plate is provided with positioning blocks, the number of which is the same as the number of mounting slots on the brake valve body, and the positioning blocks are all located directly above the mounting slots on the brake valve body. The positioning plate is provided with through holes at each positioning block, connecting the upper surface of the positioning plate and the lower surface of the positioning block. The through holes are tapered holes with a larger top and a smaller bottom, and the vertical center line of the through holes coincides with the vertical center line of the mounting slots.

[0008] The number of positioning rods is the same as the number of mounting slots on the brake valve body. All positioning rods are mounted on the top of the base plate via a pressing cylinder, and the positioning rods move up and down with the pressing cylinder, with each positioning rod positioned directly above the through hole on the positioning plate. The retaining ring, the valve pressure plate with a sealing O-ring, and the rubber-coated valve are sequentially and tightly fitted onto the bottom of the positioning rod from top to bottom. The minimum diameter of the through hole on the positioning plate is the same as the outer diameter of the positioning rod, and the minimum diameter of the through hole is smaller than the outer diameter of the retaining ring.

[0009] During assembly, the positioning cylinder moves the positioning plate downward, causing the positioning block to press against the mounting groove for positioning. The pressing cylinder then moves the positioning rod downward through the through hole, pressing the guide sleeve into the mounting groove. At the same time, the snap ring is compressed into the mounting groove by the through hole and is locked into the slot on the upper inner wall of the mounting groove. The pressing cylinder then moves the positioning rod upward. Under the limit of the snap ring, the valve pressure plate with the sealing O-ring and the rubber-coated valve are disengaged from the positioning rod and positioned in the mounting groove, thus completing the automated assembly of the brake valve body.

[0010] A cylinder mounting plate parallel to the base plate is fixed on the base plate, and the cylinder mounting plate is located above the limiting groove. The positioning cylinder and the pressing cylinder are both fixed on the cylinder mounting plate, and the piston rods of the positioning cylinder and the pressing cylinder are both facing the base plate downwards.

[0011] A fixed rod is connected between the positioning cylinder and the positioning plate. A limiting plate parallel to the base plate is fixed on the base plate. The limiting plate is provided with limiting holes for the fixed rod and the positioning pressure rod to pass through. The size of the limiting hole for the fixed rod to pass through matches the size of the fixed rod, and the size of the limiting hole for the positioning pressure rod to pass through matches the size of the positioning pressure rod. This allows the fixed rod and the positioning pressure rod to move up and down along the limiting holes when they move up and down, thereby limiting the movement of the fixed rod and the positioning pressure rod.

[0012] The brake valve body has a positioning groove above the mounting groove that communicates with the mounting groove. The size of the positioning block is the same as the size of the positioning groove, and the size of the positioning block is larger than the size of the mounting groove. The positioning block moves down and presses into the positioning groove above the mounting groove, thereby performing positioning.

[0013] The bottom outer circular surface of the positioning rod is provided with annular positioning steps for a snap ring, valve pressure plate, and rubber-coated valve, from top to bottom. The snap ring, valve pressure plate with sealing O-ring, and rubber-coated valve are sequentially and tightly fitted onto the snap ring positioning step, valve pressure plate positioning step, and rubber-coated valve positioning step.

[0014] Both the snap ring positioning step and the rubber-coated valve positioning step are provided with annular magnet fixing grooves, and annular magnets are fixedly installed in the magnet fixing grooves. The magnetic attraction force of the magnets firmly attracts the snap ring and the rubber-coated valve to the positioning pressure rod.

[0015] The bottom end of each positioning rod is connected to a positioning post. The size of the positioning post matches the internal size of the guide sleeve. The positioning rod moves down until the positioning post presses into the guide sleeve, thus pressing the guide sleeve tightly into the mounting groove.

[0016] Both the positioning cylinder and the pressing cylinder are connected to the controller, and the controller controls the operation of the positioning cylinder and the pressing cylinder.

[0017] Both the positioning cylinder and the pressing cylinder are equipped with displacement sensors for monitoring the cylinder stroke. The displacement sensors are also connected to the controller to determine whether the cylinder stroke meets the standard.

[0018] The automatic assembly device for the brake valve body is also equipped with a human body sensor, which is also connected to the controller. When the human body sensor receives a human body sensing signal, the controller receives the signal, alarms, and shuts down for protection.

[0019] Compared with the prior art, the automatic assembly device for brake valve body provided by this utility model has the following advantages: 1. The automatic assembly device for brake valve body provided by this utility model can realize the automatic assembly of brake valve body and its internal parts (circlip, sealing O-ring, valve pressure plate, rubber-coated valve, guide sleeve), improve assembly efficiency and reduce labor costs.

[0020] 2. By setting up a positioning cylinder, a fixing rod, a positioning plate, and a positioning block, this utility model can achieve precise positioning of the automatic valve body, prevent the brake valve body from shifting in other directions, improve the concentricity of the internal parts of the brake valve body during assembly, and ensure the stability and consistency of product assembly.

[0021] 3. In this utility model, the internal parts of the brake valve body are first fitted onto the positioning rod, and then limited to a free state after being compressed by the snap ring in the mounting groove. This allows the internal parts of the brake valve body to be assembled at one time. Moreover, this device can also achieve the simultaneous assembly of two sets of internal parts of the brake valve body, which is efficient, saves manpower, and reduces costs.

[0022] 4. In this utility model, the positioning pin at the bottom of the positioning rod can press into the guide sleeve first when the positioning rod moves down, so that the concentricity of the guide sleeve, the brake valve body and other parts is kept highly consistent, ensuring the stability and consistency of product assembly.

[0023] 5. In this utility model, both the positioning cylinder and the pressing cylinder are connected to the controller. This controls the automatic operation of the cylinders. Simultaneously, both the positioning cylinder and the pressing cylinder are equipped with displacement sensors to monitor the cylinder stroke, thereby determining whether the product assembly is in place and ensuring the product's pass rate. Furthermore, the device is also equipped with a human body sensor, enabling the device to stop automatically when the user moves it, thus improving the safety of the device. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the brake valve body and its internal parts in this utility model;

[0025] Figure 2 This is a cross-sectional view of the brake valve body and its internal parts in this utility model before they are assembled.

[0026] Figure 3 This is a cross-sectional view of the brake valve body and its internal parts after assembly in this utility model.

[0027] Figure 4 A schematic diagram of the overall structure of the automated assembly device for the brake valve body provided by this utility model;

[0028] Figure 5 A cross-sectional schematic diagram of the automated assembly device for the brake valve body provided by this utility model;

[0029] Figure 6 This is a schematic diagram showing the connection of the base plate, support plate, cylinder mounting plate, and limiting plate in this utility model;

[0030] Figure 7 This is a schematic diagram showing the positions of the positioning plate, positioning block, and brake valve body in this utility model;

[0031] Figure 8 This is a bottom cross-sectional view of the positioning rod in this utility model;

[0032] Figure 9 This is a schematic diagram showing the connection of the snap ring, sealing O-ring, valve pressure plate, and rubber-coated valve on the positioning pressure rod in this utility model.

[0033] Figure 10 This is a schematic diagram showing the positioning block on the positioning plate moving down and pressing against the valve body of the brake valve for positioning in this utility model;

[0034] Figure 11 This is a schematic diagram of the positioning rod passing through the through hole in this utility model;

[0035] Figure 12 This is a schematic diagram of the positioning rod moving down and pressing into the mounting groove on the valve body of the brake valve in this utility model;

[0036] In the diagram: 11-Brake valve body, 111-Mounting groove, 112-Bottom groove, 113-Card groove, 114-Positioning groove, 12-Snap ring, 13-Sealing O-ring, 14-Valve pressure plate, 15-Glue-coated valve, 16-Guide sleeve, 21-Base plate, 211-Limit groove, 22-Support plate, 23-Cylinder mounting plate, 24-Limit plate, 31-Positioning cylinder, 32-Fixing rod, 33-Positioning plate, 34-Positioning block, 35-Through hole, 41-Crimping cylinder, 42-Positioning pressure rod, 421-Positioning column, 43-Magnet, 5-Human body sensor. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings.

[0038] The automated assembly device for the brake valve body provided in this embodiment is used for the automated assembly of the brake valve body 11 and its internal parts (circlip 12, sealing O-ring 13, valve pressure plate 14, rubber-coated valve 15, guide sleeve 16). The structure of the brake valve body and its internal parts is as follows: Figure 1 and Figure 2 As shown. Specifically, the brake valve body is provided with two mounting slots 111 for installing its internal parts. Two sets of the retaining ring, sealing O-ring, valve pressure plate, rubber-coated valve, and guide sleeve are provided and installed in the two mounting slots respectively. Further, a bottom groove 112 for installing the guide sleeve is provided at the bottom of the mounting slot. In actual assembly, firstly, the guide sleeve is installed in the bottom groove of the mounting slot, then the rubber-coated valve is placed on the guide sleeve, next, the valve pressure plate with the sealing O-ring is pressed tightly onto the rubber-coated valve, and finally, the retaining ring is compressed and installed in the retaining groove 113 provided on the upper inner wall of the mounting slot. After the retaining ring enters the retaining groove, it returns to its free state and presses tightly onto the valve pressure plate, thus completing the assembly of the brake valve body and its internal parts, as shown. Figure 3 As shown, the brake valve body has many internal parts, making assembly complex, time-consuming, and labor-intensive. Furthermore, each brake valve body has two sets of internal parts; assembling entirely manually would be inefficient and costly. Additionally, due to limited installation space, if a part is not installed correctly during manual installation, the retaining spring may not be properly engaged with the corresponding inner wall, resulting in poor installation consistency and a high defect rate.

[0039] The automated assembly device for the brake valve body provided in this embodiment can realize the automated assembly of the brake valve body and its internal parts. The structure of the automated assembly device for the brake valve body is as follows: Figure 4 and Figure 5As shown, it includes a base plate 21, a positioning cylinder 31, a fixing rod 32, a positioning plate 33, a positioning block 34, a pressing cylinder 41, and a positioning pressure rod 42.

[0040] The base plate is provided with a limit groove 211, such as Figure 6 As shown. Before assembly, the brake valve body is manually positioned in the limit groove, see... Figure 4 Simultaneously, place the guide sleeve at the bottom of the mounting groove on the brake valve body (i.e., snap it into the bottom groove within the mounting groove), such as Figure 5 and 7 As shown. Specifically, the structure of the limiting groove matches the bottom structure of the brake valve body, ensuring that the brake valve body is securely placed on the limiting groove.

[0041] The positioning plate is mounted on top of the base plate via a positioning cylinder, and moves up and down with the positioning cylinder, remaining parallel to the base plate. Specifically, a cylinder mounting plate 23, parallel to the base plate, is fixed to the base plate via a support plate 22, and is located above the limiting groove. The cylinder mounting plate has mounting holes for mounting the positioning cylinder and the pressing cylinder. The positioning cylinder is fixed to the cylinder mounting plate, and its piston rod passes through the mounting hole on the cylinder mounting plate and faces downward toward the base plate. The bottom of the piston rod of the positioning cylinder is connected to a fixing rod, and the bottom of the fixing rod is connected to the positioning plate. In this embodiment, the positioning blocks are fixed to the bottom of the positioning plate. The number of positioning blocks is the same as the number of mounting slots on the brake valve body (in this embodiment, two positioning blocks are correspondingly provided), and each positioning block is exactly located directly above the mounting slot on the brake valve body (i.e., the vertical center line of each positioning block coincides with the mounting slot directly below it). See [link to relevant documentation]. Figure 5 and 7 The positioning plate is provided with through holes 35 at the positioning block, which connect the upper surface of the positioning plate and the lower surface of the positioning block. The through holes are tapered holes with a larger top and a smaller bottom, and the vertical center line of the through holes coincides with the vertical center line of the mounting groove.

[0042] The number of positioning rods is the same as the number of mounting slots on the brake valve body (in this embodiment, two positioning rods are correspondingly provided). Each positioning rod is mounted above the base plate via a pressing cylinder, and the positioning rod moves up and down with the pressing cylinder; that is, two pressing cylinders are also correspondingly provided. Furthermore, each positioning rod is positioned directly above the through hole on the positioning plate (i.e., the vertical center line of each positioning rod coincides with the through hole directly below it). See [link / description]. Figure 5 Specifically, the crimping cylinder is fixed to the cylinder mounting plate, and the piston rod of the crimping cylinder passes through the mounting hole on the cylinder mounting plate and faces the bottom plate below. The bottom of the piston rod of the positioning cylinder is connected to the positioning pressure rod.

[0043] Specifically, a limiting plate 24 parallel to the base plate is fixed to the base plate via a support plate. The limiting plate is located between the base plate and the cylinder mounting plate. The limiting plate has limiting holes for the fixed rod and the positioning rod to pass through. The size of the limiting hole for the fixed rod matches the size of the fixed rod, and the size of the limiting hole for the positioning rod matches the size of the positioning rod. This ensures that the fixed rod and the positioning rod move up and down along the limiting holes, thereby limiting their movement. (See...) Figure 4 This prevents the positioning cylinder and pressing cylinder from swaying left and right when moving up and down.

[0044] In this embodiment, the bottom outer surface of the positioning rod is provided with annular ring-shaped positioning steps for the retaining spring, valve pressure plate, and rubber-coated valve from top to bottom. The bottom end of each positioning rod is connected to a positioning post 421. Figure 8 As shown. Before assembly, the retaining ring, valve pressure plate with sealing O-ring, and rubber-coated valve are manually tightened onto the retaining ring positioning step, valve pressure plate positioning step, and rubber-coated valve positioning step in sequence, as shown. Figure 9 As shown. Specifically, both the snap ring positioning step and the rubber-coated valve positioning step are provided with annular magnet fixing grooves. Annular magnets 43 are fixedly installed in each magnet fixing groove. When the snap ring is fitted onto the snap ring groove, the valve pressure plate with a sealing O-ring is then fitted onto the valve pressure plate groove, and finally the rubber-coated valve is fitted onto the rubber-coated valve groove. Simultaneously, the magnetic attraction force of the magnets attracts the snap ring and the rubber-coated valve, ensuring a secure installation of the components. In this embodiment, the minimum diameter of the through hole on the positioning plate is consistent with the outer diameter of the positioning pressure rod, and the minimum diameter of the through hole is smaller than the outer diameter of the snap ring.

[0045] During assembly, the positioning cylinder first moves the positioning plate downwards, causing the positioning blocks to press one by one onto the mounting groove for positioning. Specifically, a positioning groove 114 communicating with the mounting groove is provided above the mounting groove. The size of the positioning block is the same as the size of the positioning groove, but the size of the positioning block is larger than the size of the mounting groove. The positioning block moves downwards and presses into the positioning groove above the mounting groove, thereby achieving positioning. Figure 10 As shown. The pressing cylinder then drives the positioning rod downwards, causing the positioning rod to pass through the through hole and the positioning pin to press into the guide sleeve in the mounting groove, thus pressing the guide sleeve tightly into the bottom groove of the mounting groove. When the positioning rod moves downwards, the snap ring passes through the through hole and is compressed by the through hole, causing the outer diameter of the snap ring to gradually decrease and smoothly enter the mounting groove, as shown. Figure 11 and Figure 12As shown, the retaining ring continues to be engaged in the groove on the inner wall of the mounting slot and returns to its free state. At this time, when the pressing cylinder drives the positioning rod to move upward, under the limiting action of the retaining ring, the valve pressure plate with a sealing O-ring fitted on the positioning rod and the rubber-coated valve disengage from the positioning rod and are installed in the corresponding position in the mounting slot, thereby realizing the automated assembly of the brake valve body and its internal parts. It should be noted that the minimum diameter of the through hole on the positioning plate must be larger than the outer diameter of the retaining ring compressor when it is compressed to its limit, ensuring that the retaining ring can pass through the through hole after compression. Specifically, the size of the positioning post matches the internal size of the guide sleeve, so that the positioning post can be pressed into the guide sleeve.

[0046] In this embodiment, both the positioning cylinder and the pressing cylinder are connected to a controller (not shown in the figure), which controls their operation. Specifically, both the positioning cylinder and the pressing cylinder are equipped with displacement sensors (not shown in the figure) to monitor the cylinder stroke. These displacement sensors are also connected to the controller to determine whether the cylinder stroke meets the standard, thereby determining whether the assembly work is in place and qualified. Specifically, the automatic assembly device for the brake valve body is also equipped with a human body sensor 5, such as a grating sensor. This human body sensor is also connected to the controller. When the human body sensor receives a human body sensing signal, the controller receives the signal, alarms, and shuts down the device to improve its safety performance. In this embodiment, two human body sensors are provided, one installed at the bottom of the cylinder mounting plate and the other at the top of the base plate, as shown in the figure. Figure 4 .

Claims

1. A kind of brake valve valve body automation assembly device, installation groove is provided on the brake valve valve body, by brake valve valve body automation assembly device, snap spring, sealing O ring, valve pressing plate, encapsulated valve, guide sleeve are assembled in installation groove, it is characterized in that: The brake valve body automatic assembly device comprises: A bottom plate, a limiting groove is arranged on the bottom plate, the brake valve body is clamped on the limiting groove, and a guide sleeve is arranged at the bottom of the installation groove of the brake valve body; A positioning plate is arranged above the bottom plate through a positioning cylinder, the positioning plate moves up and down with the positioning cylinder, the positioning plate is parallel to the bottom plate, the bottom of the positioning plate is provided with positioning blocks, the number of the positioning blocks is the same as that of the installation grooves of the brake valve body, and the positioning blocks are located above the installation grooves of the brake valve body. A positioning pressure rod is arranged above the bottom plate through a pressure cylinder, the positioning pressure rod moves up and down with the pressure cylinder, the positioning pressure rod is located above the through hole of the positioning plate, the snap spring, the valve plate with the sealing O-shaped ring and the rubber valve are sequentially and tightly sleeved on the bottom of the positioning pressure rod, the minimum diameter of the through hole of the positioning plate is consistent with the outer diameter of the positioning pressure rod, and the minimum diameter of the through hole is smaller than the outer diameter of the snap spring. When assembled, the positioning cylinder drives the positioning plate to move downward, the positioning blocks are pressed on the installation grooves for positioning, the pressure cylinder drives the positioning pressure rod to move downward and pass through the through hole, the positioning pressure rod is pressed in the installation groove, the snap spring is compressed into the installation groove, the snap spring is clamped in the clamping groove arranged on the inner wall of the upper portion of the installation groove, the pressure cylinder drives the positioning pressure rod to move upward, the valve plate with the sealing O-shaped ring and the rubber valve are separated from the positioning pressure rod and positioned in the installation groove, and the automatic assembly of the brake valve body is completed.

2. The brake valve body automated assembly apparatus of claim 1, wherein: The bottom plate is fixed with a cylinder mounting plate parallel to the bottom plate, the cylinder mounting plate is located above the limiting groove, the positioning cylinder and the pressure cylinder are fixed on the cylinder mounting plate, and the piston rods of the positioning cylinder and the pressure cylinder are both directed toward the bottom plate.

3. The brake valve body automated assembly apparatus of claim 1, wherein: The positioning cylinder and the positioning plate are connected with a fixing rod, the bottom plate is fixed with a limiting plate parallel to the bottom plate, the limiting plate is provided with limiting holes for passing through the fixing rod and the positioning pressure rod, the size of the limiting hole for passing through the fixing rod is matched with the size of the fixing rod, the size of the limiting hole for passing through the positioning pressure rod is matched with the size of the positioning pressure rod, the fixing rod and the positioning pressure rod move up and down along the limiting holes, and the positioning pressure rod is positioned.

4. The brake valve body automated assembly apparatus of claim 1, wherein: The installation groove of the brake valve body is provided with a positioning groove in communication with the installation groove, the size of the positioning block is consistent with that of the positioning groove, the size of the positioning block is greater than that of the installation groove, the positioning block moves downward and is pressed in the positioning groove above the installation groove, and positioning is performed.

5. The brake valve body automated assembly apparatus of claim 1, wherein: The bottom outer circular surface of the positioning pressure rod is sequentially provided with a snap spring positioning step, a valve plate positioning step and a rubber valve positioning step from top to bottom, and the snap spring, the valve plate with the sealing O-shaped ring and the rubber valve are sequentially and tightly sleeved on the snap spring positioning step, the valve plate positioning step and the rubber valve positioning step.

6. The brake valve body automated assembly apparatus of claim 5, wherein: The magnet fixing grooves are annular, and annular magnets are fixedly installed in the magnet fixing grooves.

7. The brake chamber valve body automated assembly apparatus of claim 1, wherein: The bottom end of the positioning pressure rod is connected with a positioning column, the size of the positioning column is matched with the inner size of the guide sleeve, the positioning pressure rod is lowered to press the guide sleeve in the guide sleeve, and the guide sleeve is pressed in the mounting groove.

8. The brake chamber valve body automated assembly apparatus of claim 1, wherein: The positioning cylinder and the pressing cylinder are connected with the controller, and the working of the positioning cylinder and the pressing cylinder is controlled by the controller.

9. The brake valve body automated assembly apparatus of claim 8, wherein: The positioning cylinder and the pressing cylinder are connected with the controller, and the working of the positioning cylinder and the pressing cylinder is controlled by the controller.

10. The brake valve body automated assembly apparatus of claim 8, wherein: The brake valve body automatic assembling device is also provided with a human body sensing sensor, and the human body sensing sensor is also connected with the controller; when the human body sensing sensor receives a human body sensing signal, the controller receives the signal, alarms and protects the stop.

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