Multi-pin automatic twisting tool for electromagnetic valve

Abstract

The utility model provides a multi-pin automatic twisting tool for an electromagnetic valve, a plurality of through holes are arranged in a limiting groove of an upper mounting seat, and a plurality of pins at the bottom of an electromagnetic valve assembly extend into the through holes; a sliding groove is formed in the lower mounting seat; the torsion rotating shafts are rotationally mounted on the lower mounting seat and the upper mounting seat, and the top ends of the plurality of torsion rotating shafts extend into the plurality of through holes respectively, so that the pins are just positioned in torsion grooves in the top ends of the torsion rotating shafts respectively; one end of the sliding rod is installed in the sliding groove of the lower installation base in a sliding mode, the other end of the sliding rod is connected with the linear driving assembly, the rack is fixed to the sliding rod, the gear is fixed to each torsion rotating shaft, all the gears are consistent in size and meshed with one another, and the rack is meshed with the gears. The tool can automatically twist a plurality of pins at the bottom of an electromagnetic valve assembly at the same time, manual operation is not needed, the labor cost is saved, the twisting angle is consistent, efficiency is improved, and the risk that the pins are damaged due to manual twisting is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to an automatic torsion fixture for a multi-pin electromagnetic valve. Background Technology

[0002] Solenoid valves are actuators in automotive electronic control systems. Based on their function, they can be categorized into shift solenoid valves, lock-up solenoid needle valves, and pressure regulating solenoid needle valves. Based on their operating method, they can be categorized into on / off solenoid valves and pulse-type solenoid valves. During the manufacturing process of solenoid valves, before assembling individual valves into finished products and welding them, the welding leads need to be twisted to improve the strength of the welded leads. Currently, after assembling individual valves, the multiple leads of the solenoid valve are usually twisted manually one by one. This method is labor-intensive, slow, and affects subsequent welding efficiency. Furthermore, manually twisting the leads can easily break them, and the twisting angle is difficult to control. Summary of the Invention

[0003] This invention provides an automatic multi-pin torsion fixture for solenoid valves. This fixture can automatically torsion multiple pins at the bottom of the solenoid valve assembly simultaneously without manual operation, saving labor costs. It also ensures consistent torsion angles, improving efficiency and reducing the risk of damage to the pins caused by manual torsion.

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

[0005] An automatic multi-pin torsion fixture for solenoid valves is provided for automatically torsion of multiple pins at the bottom of a solenoid valve assembly. The automatic multi-pin torsion fixture for solenoid valves includes:

[0006] The upper mounting base has a limiting groove on its upper part for placing the solenoid valve assembly, and multiple through holes are provided in the corresponding positions in the limiting groove, so that when the solenoid valve assembly is placed on the limiting groove, multiple pins at the bottom of the solenoid valve assembly extend into the corresponding through holes respectively.

[0007] The lower mounting base has a sliding groove, and the upper mounting base is connected to the lower mounting base with a reserved installation area between the upper and lower mounting bases.

[0008] The torsion mechanism is installed in the mounting area. The torsion mechanism includes multiple torsion rotating shafts. The number of torsion rotating shafts is the same as the number of pins. The bottom and top ends of the torsion rotating shafts are rotatably mounted on the lower mounting base and the upper mounting base, respectively. The top ends of the multiple torsion rotating shafts extend into multiple through holes. Each top end of the torsion rotating shaft is provided with a torsion groove so that the pins are located in the corresponding torsion grooves.

[0009] The drive mechanism includes a linear drive assembly, a slide rod, a rack, and gears. One end of the slide rod is slidably mounted in a groove in the lower mounting base, and the other end of the slide rod is connected to the linear drive assembly. The linear drive assembly drives the slide rod to move linearly along the groove. The rack is fixed on the slide rod, and one gear is fixed on each torsion rotation shaft. All gears are of the same size and mesh with each other. The rack meshes with the gears, and the rack moves linearly with the slide rod, thereby driving the gears to rotate. The gears drive the torsion rotation shafts to rotate, thereby torsioning the pin.

[0010] Two racks are provided, and the two racks are fixed on both sides of the slide rod respectively. All the gears on both sides of the slide groove mesh with each other to form two sets of gears, and the two racks mesh with the two sets of gears respectively.

[0011] The diameter of the through hole matches the diameter of the top of the torsion rotating shaft.

[0012] The torsion mechanism also includes multiple positioning rotating shafts, which are distributed among the torsion rotating shafts. The bottom and top ends of the positioning rotating shafts are rotatably mounted on the lower mounting base and the upper mounting base, respectively. Each positioning rotating shaft is also fixed with a gear. The size of the gear on the positioning rotating shaft is the same as that of the gear on the torsion rotating shaft and meshes with the gear on the torsion rotating shaft.

[0013] The limiting groove is provided with a clearance groove and a limiting post that are adapted to the bottom structure of the solenoid valve assembly, so that the solenoid valve assembly is stably placed on the upper mounting base.

[0014] The linear drive component is a cylinder.

[0015] The linear drive assembly is controlled by two switch buttons. When both switch buttons are pressed at the same time, the linear drive assembly extends and retracts, causing the slide rod to move linearly.

[0016] The bottom of the upper mounting base is provided with a mounting groove. The upper mounting base is fixed against the upper surface of the lower mounting base, and the mounting groove on the lower mounting base is the mounting area.

[0017] The multi-pin automatic torsion fixture for the solenoid valve also includes a rotary cylinder, which is connected to a hand lever valve switch. The hand lever valve switch controls the rotary cylinder to rotate and press the solenoid valve assembly into the limiting groove of the upper mounting base.

[0018] The multi-pin automatic torsion fixture for the solenoid valve is mounted on the base.

[0019] Compared with the prior art, the multi-pin automatic torsion fixture for solenoid valves provided by this utility model has the following advantages: 1. The multi-pin automatic torsion fixture for solenoid valves provided by this utility model can automatically torsion multiple pins at the bottom of the solenoid valve assembly at the same time, improving the torsion efficiency. After removal, it can be directly welded without the need for manual torsion of each pin, saving labor costs; and the torsion angle is consistent, the product quality is stable, and the risk of damage to the pins by manual torsion is reduced.

[0020] 2. In this utility model, the cylinder pushes and pulls the rack to drive the gear to rotate, thereby driving the torsion rotation shaft to rotate. The torsion groove on the torsion rotation shaft drives the pin to rotate, thereby realizing the simultaneous torsion positioning of multiple pins with consistent torsion angles, no special deformation, high product consistency, and simple tooling structure and simple automated operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the solenoid valve assembly in this utility model;

[0022] Figure 2 An exploded view of the multi-pin automatic torsion fixture for the solenoid valve provided by this utility model;

[0023] Figure 3 Assembly diagram of the multi-pin automatic torsion fixture for the solenoid valve provided by this utility model;

[0024] Figure 4 This is a schematic diagram of the upper mounting base in this utility model;

[0025] Figure 5 This is a cross-sectional view showing the connection between the upper mounting base, the lower mounting base, and the torsion mechanism in this utility model;

[0026] Figure 6 This is a connection structure diagram of the lower mounting base, torsion mechanism, and drive mechanism in this utility model;

[0027] Figure 7 This is a top view showing the connection between the lower mounting base, the torsion mechanism, and the drive mechanism in this utility model;

[0028] In the diagram: 1-Solenoid valve assembly, 101-Pin, 2-Base, 3-Lower mounting base, 301-Slide groove, 4-Upper mounting base, 401-Mounting groove, 402-Limit groove, 403-Through hole, 501-Torsion rotating shaft, 5011-Torsion groove, 502-Positioning rotating shaft, 503-Bearing, 601-Linear drive assembly, 602-Slide rod, 603-Rack, 604-Gear, 605-Fixed base, 606-Switch button, 701-Angle cylinder, 702-Hand lever valve switch. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] The structure of the solenoid valve assembly 1 after single valve assembly and before welding is as follows: Figure 1 As shown, in this embodiment, the solenoid valve assembly is composed of four single valves, and each single valve has two pins 101 at its bottom, that is, the solenoid valve assembly has a total of eight pins.

[0031] The multi-pin automatic torsion fixture for the solenoid valve provided in this embodiment is as follows: Figures 2-3 As shown, it includes a base 2, a lower mounting base 3, an upper mounting base 4, a torsion mechanism, and a drive mechanism; wherein the lower mounting base is fixed to the base, the upper mounting base is connected to the lower mounting base, and a mounting area is reserved between the upper and lower mounting bases. Specifically, the bottom of the upper mounting base is provided with a mounting groove 401, and the upper mounting base is fixed against the upper surface of the lower mounting base. At this time, the mounting area is the mounting groove on the lower mounting base. Figures 4-5 As shown.

[0032] The upper part of the mounting base is provided with a limiting groove 402 for placing the solenoid valve assembly, and the limiting groove is provided with through holes 403 at corresponding positions for multiple pins to pass through, that is, there are also eight through holes. When the solenoid valve assembly is placed on the limiting groove, the eight pins at the bottom of the solenoid valve assembly extend into the eight corresponding through holes respectively. Figure 5 Specifically, the limiting groove is also equipped with a clearance groove and a limiting post that are adapted to the bottom structure of the solenoid valve assembly, so as to ensure that the solenoid valve assembly is stably placed on the upper mounting base.

[0033] The torsion mechanism is installed in the installation area and includes multiple torsion rotation shafts 501, such as... Figure 5 and Figure 6 As shown, the number of torsion shafts matches the number of pins, i.e., eight torsion shafts are provided. The bottom and top ends of the torsion shafts are rotatably mounted on the lower and upper mounting bases, respectively, and the top ends of multiple torsion shafts extend into multiple through holes. Each torsion shaft top end is provided with a torsion groove 5011, so that the pins of the solenoid valve assembly are exactly located in the corresponding torsion grooves. Figure 5Specifically, the diameter of the through hole matches the top diameter of the torsion rotating shaft. It should be noted that, due to the different arrangement angles of the pins at the bottom of the solenoid valve assembly, the angle of the torsion groove must match the corresponding pin arrangement angle to ensure the pins can extend into the torsion groove. In this embodiment, the torsion mechanism also includes multiple positioning rotating shafts 502, distributed among the torsion rotating shafts, with their bottom and top ends rotatably mounted on the lower and upper mounting bases, respectively. In this embodiment, six positioning rotating shafts are provided, with three positioned rotating shafts distributed between the four torsion rotating shafts on the left and the four torsion rotating shafts on the right. Specifically, the upper part of the upper mounting base and the mounting groove of the lower mounting base both have grooves for mounting the torsion rotating shafts and positioning rotating shafts. Both ends of the torsion rotating shafts and positioning rotating shafts are rotatably connected to the upper and lower mounting bases via bearings 503.

[0034] In this embodiment, the driving mechanism includes a linear drive assembly 601, a slide rod 602, a rack 603, and a gear 604. One end of the slide rod is slidably mounted in a groove 301 provided on the lower mounting base, and the other end of the slide rod is connected to the linear drive assembly, which drives the slide rod to move linearly along the groove. In this embodiment, two racks are provided, each fixed to one side of the slide rod. One gear is fixed on each torsional rotation shaft and each positioning rotation shaft, and all gears are of the same size. All gears located on both sides of the groove mesh to form two sets of gears, and the two racks mesh with the two sets of gears respectively. Figure 7 As shown, the rack moves linearly with the slide rod, thereby driving the gear to rotate. The gear drives the torsion rotation shaft to rotate, thus torturing the pin. In actual installation, some positioning rotation shafts can also be set between the left and right torsion rotation shafts, so that all the gears on the torsion rotation shafts and positioning rotation shafts are meshed with each other, that is, all the gears are meshed into a gear set. In this case, only one rack is needed. Specifically, the rack is fixed to the slide rod by bolts.

[0035] Specifically, the linear drive component is a cylinder, which is fixedly mounted on the base via a mounting bracket 605. Further, the mounting bracket is fixed to the base and has a horizontally penetrating mounting hole. The cylinder is fixed to the mounting bracket, and its extension rod extends out of the mounting hole. Specifically, the linear drive component is controlled by two switch buttons 606. When both switch buttons are pressed simultaneously, the linear drive component moves linearly, causing the slide rod to move linearly as well.

[0036] In this embodiment, the multi-pin automatic torsion fixture for the solenoid valve also includes a rotary cylinder 701. The rotary cylinder is connected to a hand lever valve switch 702. The hand lever valve switch controls the rotary cylinder to rotate and press the solenoid valve assembly into the limiting groove of the upper mounting base.

[0037] The workflow of the multi-pin automatic torsion fixture for solenoid valves provided in this embodiment is as follows: The solenoid valve assembly is placed in the limiting groove of the upper mounting base, with the pins extending into the through-hole and positioned within the torsion groove of the torsion rotating shaft. The lever valve is activated, causing the angle cylinder to rotate and press down, clamping the solenoid valve assembly. Both switch buttons are pressed, causing the push rod inside the cylinder to push the slide rod forward, at which point the rack moves synchronously. The rack meshes with one gear in each of the gear sets on both sides, driving that gear to rotate. The remaining gears mesh with these two gears, ensuring transmission stability and consistent rotation angle. The rack stops after moving forward a certain distance, causing the rotating shaft to rotate at a certain angle, consistent with the pin torsion angle (e.g., 45°), thus completing the automatic torsion of the pins. The lever valve is activated again, lifting the angle cylinder and removing the solenoid valve assembly. The two switch buttons are pressed again, causing the push rod inside the cylinder to drive the slide rod and gears to reset backward. At this point, the gears rotate synchronously in the opposite direction, driving the torsion rotating shaft to reset.

Claims

1. An automatic torsion fixture for a multi-pin solenoid valve, for automatically torsion of multiple pins at the bottom of a solenoid valve assembly, characterized in that: The multi-pin automatic torsion fixture for the solenoid valve includes: The upper mounting base has a limiting groove on its upper part for placing the solenoid valve assembly, and multiple through holes are provided in the corresponding positions in the limiting groove, so that when the solenoid valve assembly is placed on the limiting groove, multiple pins at the bottom of the solenoid valve assembly extend into the corresponding through holes respectively. The lower mounting base has a sliding groove, and the upper mounting base is connected to the lower mounting base with a reserved installation area between the upper and lower mounting bases. The torsion mechanism is installed in the mounting area. The torsion mechanism includes multiple torsion rotating shafts. The number of torsion rotating shafts is the same as the number of pins. The bottom and top ends of the torsion rotating shafts are rotatably mounted on the lower mounting base and the upper mounting base, respectively. The top ends of the multiple torsion rotating shafts extend into multiple through holes. The top ends of the torsion rotating shafts are provided with torsion grooves so that the pins are located in the corresponding torsion grooves. The drive mechanism includes a linear drive assembly, a slide rod, a rack, and gears. One end of the slide rod is slidably mounted in a groove in the lower mounting base, and the other end of the slide rod is connected to the linear drive assembly. The linear drive assembly drives the slide rod to move linearly along the groove. The rack is fixed on the slide rod, and one gear is fixed on each torsion rotation shaft. All gears are of the same size and mesh with each other. The rack meshes with the gears, and the rack moves linearly with the slide rod, thereby driving the gears to rotate. The gears drive the torsion rotation shafts to rotate, thereby torsioning the pin.

2. The multi-pin automatic torsion fixture for solenoid valves according to claim 1, characterized in that: Two racks are provided, and the two racks are fixed on both sides of the slide rod respectively. All the gears on both sides of the slide groove mesh with each other to form two sets of gears, and the two racks mesh with the two sets of gears respectively.

3. The multi-pin automatic torsion fixture for solenoid valves according to claim 1, characterized in that: The diameter of the through hole matches the diameter of the top of the torsion rotating shaft.

4. The multi-pin automatic torsion fixture for solenoid valves according to claim 1, characterized in that: The torsion mechanism also includes multiple positioning rotating shafts, which are distributed among the torsion rotating shafts. The bottom and top ends of the positioning rotating shafts are rotatably mounted on the lower mounting base and the upper mounting base, respectively. Each positioning rotating shaft is also fixed with a gear. The size of the gear on the positioning rotating shaft is the same as that of the gear on the torsion rotating shaft and meshes with the gear on the torsion rotating shaft.

5. The multi-pin automatic torsion fixture for a solenoid valve according to claim 1, characterized in that: The limiting groove is provided with a clearance groove and a limiting post that are adapted to the bottom structure of the solenoid valve assembly, so that the solenoid valve assembly is stably placed on the upper mounting base.

6. The multi-pin automatic torsion fixture for solenoid valves according to claim 1, characterized in that: The linear drive component is a cylinder.

7. The multi-pin automatic torsion fixture for a solenoid valve according to claim 1, characterized in that: The linear drive assembly is controlled by two switch buttons. When both switch buttons are pressed at the same time, the linear drive assembly extends and retracts, causing the slide rod to move linearly.

8. The multi-pin automatic torsion fixture for a solenoid valve according to claim 1, characterized in that: The bottom of the upper mounting base is provided with a mounting groove. The upper mounting base is fixed against the upper surface of the lower mounting base, and the mounting groove on the lower mounting base is the mounting area.

9. The multi-pin automatic torsion fixture for a solenoid valve according to claim 1, characterized in that: The multi-pin automatic torsion fixture for the solenoid valve also includes a rotary cylinder, which is connected to a hand lever valve switch. The hand lever valve switch controls the rotary cylinder to rotate and press the solenoid valve assembly into the limiting groove of the upper mounting base.

10. The multi-pin automatic torsion fixture for a solenoid valve according to claim 1, characterized in that: The multi-pin automatic torsion fixture for the solenoid valve is mounted on the base.

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