Crimping tool for guide sleeve and static iron core of electromagnetic valve

Abstract

The utility model provides an electromagnetic valve guide sleeve and static iron core crimping tool, which comprises a guide sleeve fixing seat, a pressure head air cylinder, a distance measuring sensor and a controller, the air cylinder drives a pressure head to approach the guide sleeve fixing seat in the vertical direction and crimps the guide sleeve and the static iron core placed on the guide sleeve fixing seat, the distance measuring sensor is arranged above the pressure head, and the controller is connected with the pressure head air cylinder. A first vertical through hole is formed in the pressing head, an inductive head of the distance measuring sensor is vertically arranged downwards, the center lines of the guide sleeve fixing seat, the first vertical through hole and the inductive head of the distance measuring sensor are located on the same vertical line, and the inductive head of the distance measuring sensor measures the distance between the inductive head of the distance measuring sensor and a static iron core on the guide sleeve fixing seat; the controller is connected with the distance measuring sensor, receives the change of the distance between the inductive head of the distance measuring sensor and the static iron core before and after crimping, and feeds back whether crimping is qualified or not according to a distance change result. According to the crimping tool, the crimping height can be automatically detected, and the situation that a human body is injured during crimping can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile solenoid valves, in particular to a crimping tool for a guide sleeve and a static iron core of a solenoid valve. Background Art

[0002] Automotive solenoid valves are the actuators of automotive electronic control systems. They are categorized by their function into shift solenoid valves, locking solenoid needle valves, and pressure-regulating solenoid needle valves. Based on their operating mode, they can be divided into on-off solenoid valves and pulse solenoid valves. Automotive solenoid valves consist of a housing, sealing ring, armature, coil bobbin, static iron core, dynamic spring, gasket, and intake connector. During the automated production of solenoid valves, tooling is required to crimp the guide sleeve and static iron core. Existing crimping tooling only performs this function, and after crimping, the crimping height must be inspected on a gauge to ensure compliance, requiring additional manpower for inspection. Furthermore, existing crimping tooling lacks protective features, posing a risk of hand injury during the crimping process. Summary of the Invention

[0003] The utility model provides a crimping tool for a guide sleeve and a static iron core of a solenoid valve. The crimping tool detects whether the crimping height is qualified by using a distance measuring sensor and feeds back the detection result by using a controller, thereby realizing automatic detection of whether the crimping height is qualified. In addition, the tool is provided with an infrared sensor. When a human body approaches during crimping, the controller can control the crimping process to stop, thereby avoiding injury to the human body.

[0004] The technical solutions adopted to achieve the above-mentioned purpose of the utility model are:

[0005] A solenoid valve guide sleeve and static iron core crimping tool, comprising a guide sleeve fixing seat, a pressure head, and a cylinder. The pressure head is fixed to the piston rod of the cylinder and is located directly above the guide sleeve fixing seat. The cylinder drives the pressure head to approach the guide sleeve fixing seat in the vertical direction to crimp the guide sleeve and the static iron core placed on the guide sleeve fixing seat. The crimping tool also includes:

[0006] A distance sensor is installed above the pressure head. The pressure head is provided with a first vertical through hole. The sensing head of the distance sensor is arranged vertically downward. The center lines of the guide sleeve fixing base, the first vertical through hole, and the sensing head of the distance sensor are all on a vertical line. The sensing head of the distance sensor measures the distance between itself and the static iron core on the guide sleeve fixing base.

[0007] The controller is connected to the distance measuring sensor, receives the change in the distance between the sensing head of the distance measuring sensor and the static iron core before and after crimping, and feeds back whether the crimping is qualified based on the distance change result.

[0008] The guide sleeve fixing seat, the pressing head, the air cylinder and the distance measuring sensor are all installed on the tool fixing seat, and the tool fixing seat is in the shape of L as a whole and comprises a horizontal fixing plate and a vertical fixing plate connected with each other.

[0009] The guide sleeve fixing seat is fixed on the horizontal fixing plate, the air cylinder is installed on the vertical fixing plate in the vertical direction, and the piston rod of the air cylinder faces the horizontal fixing plate.

[0010] The horizontal fixing plate is fixed with a mounting seat in the shape of a door, the mounting seat comprises an upper fixing plate and two support plates fixed on the two sides of the bottom of the upper fixing plate, the bottoms of the two support plates are fixed on the horizontal fixing plate and located on the two sides of the guide sleeve fixing seat, and the upper fixing plate is located above the pressing head; the distance measuring sensor is fixed on the upper fixing plate, and the upper fixing plate is provided with a second vertical through hole directly below the sensing head of the distance measuring sensor.

[0011] An infrared sensor is installed on the inner wall of the mounting seat, the infrared sensor is connected with the controller, and the situation when a human body approaches the inside of the mounting seat during the crimping is detected; the controller is connected with the air cylinder, and when the air cylinder operates and the controller receives the signal that the human body approaches, the controller controls the air cylinder to stop operating.

[0012] The controller is integrated in a control box, and an indicating lamp for indicating whether the crimping is qualified is also integrated on the control box, wherein the indicating lamp is connected with the controller, and the controller controls the indicating lamp to indicate the qualification or unqualification according to the result of whether the crimping is qualified.

[0013] The guide sleeve fixing seat comprises a base and a limiting column, the limiting column is fixed on the base, the structure of the limiting column is matched with the internal structure of the guide sleeve, so that the guide sleeve is just sleeved on the limiting column, the height of the limiting column is less than the height of the guide sleeve, a limiting groove is arranged at the top end of the limiting column, so that when the static iron core is placed in the guide sleeve, the bottom end of the static iron core is located in the limiting groove, and the distance between the bottom end of the static iron core and the bottom of the limiting groove is greater than the downward distance of the static iron core during the crimping.

[0014] The bottom of the pressing head is provided with a pressing groove, the size of the pressing groove is greater than the size of the first vertical through hole, the center line of the pressing groove and the center line of the static iron core are on a straight line, and when the pressing head moves downward, the pressing groove of the pressing head covers the static iron core, the guide sleeve and the limiting column and presses downward.

[0015] The pressing head comprises an installation block and a pressing block connected as a whole, the installation block is fixedly connected with the bottom end of the piston rod of the air cylinder, so that the pressing block is located on the side of the air cylinder away from the vertical fixing plate, and the pressing groove is located on the pressing block.

[0016] Vertical slide rods are fixed around the guide sleeve fixing seat, the pressing head is sleeved on the vertical slide rods through linear bearings, and the vertical slide rods limit the pressing head when the pressing head moves with the air cylinder.

[0017] Compared with the prior art, the crimping tool for the guide sleeve and static iron core of the solenoid valve provided by the utility model has the following advantages: 1. The crimping tool provided by the utility model measures the height distance before and after the static iron core is crimped by arranging a distance measuring sensor, thereby detecting whether the crimping height is qualified, and there is no need to add a manual inspection process; and the crimping tool forms a semi-enclosed space through the tool fixing seat and the mounting seat, and the pressure head and the guide sleeve fixing seat are both located in the semi-enclosed space. By arranging an infrared sensor in the mounting seat, it can detect the situation when the human body approaches the semi-enclosed space during crimping, and the controller controls the cylinder to stop working to avoid accidental injury caused by the human body approaching the crimping point during crimping.

[0018] 2. In the utility model, the distance sensor is connected to the controller, and the controller is connected to the indicator light for indicating whether the crimping is qualified. The controller can control the qualified or unqualified indicator light to light up according to the change in the distance between the sensing head of the distance sensor and the static iron core before and after crimping, thereby realizing automatic detection of whether the crimping is qualified.

[0019] 3. In the present invention, the infrared sensor is connected to the controller, and the cylinder is also connected to the controller. When the cylinder is running, the controller receives a signal that a human body is approaching the inside of the mounting seat, and the controller controls the cylinder to stop working.

[0020] 4. In the utility model, the guide sleeve fixing seat, pressure head and cylinder are all installed on the tooling fixing seat. The pressure head is sleeved on the vertical sliding rod used for limiting through the main line bearing, ensuring the stability of the pressure head pressing process, thereby ensuring the qualified rate of the crimped products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural diagram of the guide sleeve and static iron core crimping tooling for the solenoid valve provided by the utility model;

[0022] Figure 2 This is an exploded view of the guide sleeve and static iron core crimping tooling of the solenoid valve provided by the utility model;

[0023] Figure 3 This is a front view of the guide sleeve and static iron core crimping tooling of the solenoid valve provided by the utility model before crimping;

[0024] Figure 4 This is a front view of the guide sleeve and static iron core crimping tooling of the solenoid valve provided by the utility model after crimping is completed;

[0025] In the figure: 1-horizontal fixing plate, 2-vertical fixing plate, 3-guide sleeve fixing seat, 301-base, 302-limiting column, 303-limiting slot, 4-pressure head, 401-screw mounting hole, 402-linear bearing mounting hole, 403-first vertical through hole, 5-cylinder, 6-guide sleeve, 7-static iron core, 8-vertical slide rod, 9-linear bearing, 10-upper fixing plate, 1001-second vertical through hole, 11-support plate, 12-distance measuring sensor, 13-sensor fixing seat, 14-infrared sensor, 15-controller, 16-control box, 17-indicator light, 18-cylinder control switch, 19-power supply. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings.

[0027] The guide sleeve and static iron core crimping tool of the solenoid valve provided in this embodiment is as follows Figure 1 and Figure 2 As shown, it at least includes a tool fixing seat. Specifically, the tool fixing seat is L-shaped as a whole, and includes a horizontal fixing plate 1 and a vertical fixing plate 2 connected to each other.

[0028] The fixture base is mounted with a guide sleeve base 3, a pressure head 4, and a cylinder 5. The guide sleeve base is fixed to a horizontal fixed plate and is used to hold a guide sleeve 6 and a static iron core 7. Before crimping the guide sleeve and the static iron core, the guide sleeve is placed on the guide sleeve base, and then the static iron core is placed on the guide sleeve. The cylinder is mounted vertically on the vertical fixed plate, with the cylinder piston rod facing the horizontal fixed plate. The pressure head is fixed to the cylinder piston rod and is located directly above the guide sleeve base. The cylinder drives the pressure head vertically toward the guide sleeve base to crimp the guide sleeve and static iron core placed on the guide sleeve base. In this embodiment, the guide sleeve fixing seat includes a base 301 and a limiting column 302. The base is fixed to the horizontal fixing plate, and the limiting column is fixed to the base. The structure of the limiting column matches the internal structure of the guide sleeve so that the guide sleeve is just sleeved on the limiting column. The height of the limiting column is less than the height of the guide sleeve. A limiting groove 303 is provided at the top of the limiting column so that when the static iron core is placed in the guide sleeve, the bottom end of the static iron core is located in the limiting groove, and the distance between the bottom end of the static iron core and the bottom of the limiting groove is greater than the downward movement distance of the static iron core during crimping. The bottom of the pressure head is provided with a pressing groove directly above the guide sleeve fixing seat. The pressing groove and the center line of the static iron core are in a straight line. When the pressure head moves downward, the pressing groove of the pressure head covers the static iron core, the guide sleeve and the limiting column and presses down, such as Figure 3 and Figure 4 shown.

[0029] Specifically, vertical slide bars 8 are fixed around the guide sleeve mounting base, and the ram is mounted on these vertical slide bars via linear bearings 9. As the ram moves with the cylinder, the vertical slide bars limit the ram's position, ensuring stable operation during the downward pressing process. This allows the ram to always press positively on the static iron core and guide sleeve, ensuring the quality of the crimping. Furthermore, there are four vertical slide bars, corresponding to four linear bearings.

[0030] In this embodiment, the pressure head includes an integrally connected mounting block and a pressure block. The mounting block is provided with screw mounting holes 401. The mounting block is screwed to the bottom end of the cylinder's piston rod, securing the pressure block to the side of the cylinder away from the vertical fixing plate. The pressure block has a T-shaped structure and is surrounded by linear bearing mounting holes 402, into which the linear bearings are mounted. The pressure block is positioned on one side of the cylinder, with the guide sleeve mounting seat directly below it.

[0031] In this embodiment, a gate-shaped mounting base is fixed to the horizontal fixing plate. The mounting base includes an upper fixing plate 10 and two support plates 11 fixed to either side of the bottom of the upper fixing plate. The bottoms of the two support plates are fixed to the horizontal fixing plate and located on either side of the guide sleeve fixing base. The upper fixing plate is located above the pressure head. A first vertical through-hole 403 is provided directly above the guide sleeve fixing base, connecting the pressure groove and the upper surface of the pressure head. The first vertical through-hole is smaller than the pressure groove. A distance sensor 12 is fixedly mounted on the upper fixed plate. A second vertical through hole 1001 is provided on the upper fixed plate at a corresponding position directly below the sensing head of the distance sensor. The sensing head of the distance sensor is located directly above the second vertical through hole, that is, the center lines of the guide sleeve fixing seat, the guide sleeve, the static iron core, the first vertical through hole, the second vertical through hole and the sensing head of the distance sensor are all on a vertical line. At this time, the signal emitted by the sensing head of the distance sensor reaches the static iron core through the second vertical through hole and the first vertical through hole, thereby measuring the distance between the sensing head of the distance sensor and the static iron core, and monitoring the change in the distance between the static iron core before and after crimping to monitor the crimping distance. Specifically, a sensor fixing seat 13 is fixed on one side of the second vertical through hole on the upper fixed plate, and the distance sensor is fixed on the sensor fixing seat; further, the sensor fixing seat is in an L-shaped structure. Preferably, the distance sensor is a laser distance sensor.

[0032] In this embodiment, a semi-enclosed space is formed between the mounting base and the tooling fixing base. The indenter and guide sleeve fixing base are both located within the semi-enclosed space. An infrared sensor 14 is mounted on the inner wall of the mounting base. Specifically, the infrared sensor is mounted on the side of the two support plates away from the vertical fixing plate. Once a person approaches the mounting base, it will be detected.

[0033] The control sleeve and the static core of the electromagnetic valve in the embodiment are matched with the controller 15, the controller is connected with the distance measuring sensor, the controller receives the distance change between the sensing head of the distance measuring sensor before and after the crimping and the static core, and according to the distance change result, it is fed back whether the crimping is qualified. Specifically, the distance change threshold before and after the crimping when the crimping is qualified can be set in advance, if the distance change result exceeds the threshold, it means that the crimping is unqualified, if the distance change result does not exceed the threshold, it means that the crimping is qualified. The controller is connected with the infrared sensor, and the situation when the human body is close to the inside of the mounting seat during crimping is detected. Specifically, when the infrared sensor detects that the human body is close, a signal is sent to the controller.

[0034] The controller in the embodiment is integrated in the control box 16, and the control box is also integrated with the indicating lamp 17 for indicating whether the crimping is qualified, the cylinder control switch 18 and the power supply 19. Specifically, the indicating lamp includes an NG lamp of red color and an OK lamp of green color, and the indicating lamp is connected with the controller, when the crimping is unqualified, the controller controls the NG lamp of red color to light, and when the crimping is qualified, the controller controls the OK lamp of green color to light. The controller is connected with the cylinder, when the cylinder is running and the controller receives the signal that the human body is close, the controller controls the cylinder to stop running. Specifically, the controller is connected with the cylinder through the cylinder control switch, the cylinder control switch is provided with two, the two cylinder control switches are connected in series, one of the cylinder control switches is controlled to be closed and opened through the manual button, and the other cylinder control switch is connected with the controller, the closing and opening of the cylinder control switch is controlled through the controller, so as to control the working of the cylinder, the cylinder control switch connected with the controller is in the normally closed mode, the cylinder control switch controlled by the manual button can control the cylinder to run, during the running of the cylinder, when the controller receives the signal that the human body is close from the infrared sensor, the controller controls the cylinder control switch to be opened, and the cylinder stops running. The power supply is connected with the indicating lamp, the cylinder control switch and the controller, and supplies power for them.

Claims

1. A tool for crimping a guide sleeve and a static iron core of a solenoid valve, comprising a guide sleeve fixing seat, a pressure head, and a cylinder. The pressure head is fixed to the piston rod of the cylinder and is located directly above the guide sleeve fixing seat. The cylinder drives the pressure head in the vertical direction to approach the guide sleeve fixing seat to crimp the guide sleeve and the static iron core placed on the guide sleeve fixing seat. The tool is characterized by: The crimping tool also includes: A distance sensor is installed above the pressure head. The pressure head is provided with a first vertical through hole. The sensing head of the distance sensor is arranged vertically downward. The center lines of the guide sleeve fixing base, the first vertical through hole, and the sensing head of the distance sensor are all on a vertical line. The sensing head of the distance sensor measures the distance between itself and the static iron core on the guide sleeve fixing base. The controller is connected to the distance measuring sensor, receives the change in the distance between the sensing head of the distance measuring sensor and the static iron core before and after crimping, and feeds back whether the crimping is qualified based on the distance change result.

2. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 1, characterized in that: The guide sleeve fixing seat, pressure head, cylinder and distance sensor are all installed on the tool fixing seat. The tool fixing seat is L-shaped as a whole, including a horizontal fixing plate and a vertical fixing plate connected to each other.

3. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 2, characterized in that: The guide sleeve fixing seat is fixed on the horizontal fixing plate, the cylinder is installed on the vertical fixing plate along the vertical direction, and the piston rod of the cylinder faces the horizontal fixing plate.

4. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 2, characterized in that: A door-shaped mounting base is fixed to the horizontal fixed plate, and the mounting base includes an upper fixed plate and two support plates fixed on both sides of the bottom of the upper fixed plate. The bottoms of the two support plates are fixed to the horizontal fixed plate and are located on both sides of the guide sleeve fixing base, and the upper fixed plate is located above the pressure head; the distance measuring sensor is fixed on the upper fixed plate, and the upper fixed plate is provided with a second vertical through hole directly below the sensing head of the distance measuring sensor.

5. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 4, characterized in that: An infrared sensor is installed on the inner wall of the mounting seat, and the infrared sensor is connected to the controller to detect the situation when the human body approaches the inside of the mounting seat during crimping; the controller is connected to the cylinder, and when the cylinder is running and the controller receives a signal that the human body is approaching, the controller controls the cylinder to stop running.

6. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 1, characterized in that: The controller is integrated into a control box, which is also integrated with an indicator light for indicating whether the crimping is qualified. The indicator light is connected to the controller, and the controller controls the indicator light to indicate qualified or unqualified according to the result of whether the crimping is qualified.

7. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 1, characterized in that: The guide sleeve fixing seat includes a base and a limiting column. The limiting column is fixed on the base. The structure of the limiting column matches the internal structure of the guide sleeve so that the guide sleeve is just sleeved on the limiting column. The height of the limiting column is less than the height of the guide sleeve. A limiting groove is set on the top of the limiting column so that when the static iron core is placed in the guide sleeve, the bottom end of the static iron core is located in the limiting groove, and the distance between the bottom end of the static iron core and the bottom of the limiting groove is greater than the downward movement distance of the static iron core during crimping.

8. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 7, characterized in that: A pressing groove is provided at the bottom of the pressing head. The size of the pressing groove is larger than the size of the first vertical through hole. The pressing groove is in a straight line with the center line of the static iron core. When the pressing head moves downward, the pressing groove of the pressing head covers the static iron core, the guide sleeve and the limit column and presses down.

9. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 8, characterized in that: The pressure head includes a mounting block and a pressure block connected as one body. The mounting block is fixedly connected to the bottom end of the piston rod of the cylinder so that the pressure block is located on the side of the cylinder away from the vertical fixed plate, and the pressure groove is located on the pressure block.

10. The tool for crimping the guide sleeve and the static iron core of the solenoid valve according to claim 1, characterized in that: A vertical slide bar is fixed around the guide sleeve fixing seat, and the pressure head is sleeved on the vertical slide bar through a linear bearing. When the pressure head moves with the cylinder, the vertical slide bar limits the pressure head.

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