Upper pressure head assembly, upper press-fitting mechanism and press-fitting equipment for assembling electromagnetic valve

Abstract

The utility model discloses an upper pressure head assembly for assembling an electromagnetic valve, which comprises a horizontally arranged lifting plate, a first mounting hole vertically penetrating through the lifting plate, a mounting seat fixedly sleeved in the first mounting hole, a second mounting hole arranged in the middle of the mounting seat, a movable pressure rod sleeved in the second mounting hole, and a movable pressure rod arranged in the movable pressure rod. A first reset spring is connected between the movable pressing rod and the mounting seat; a mounting groove extending upwards is formed in the end face of the lower end of the movable pressing rod, a floating pressing head is movably sleeved with the mounting groove, and a profiling hole is formed in the lower end of the floating pressing head; the peripheral side of the lower end of the movable pressing rod is fixedly sleeved with a limiting ring, the mounting groove is provided with a limiting structure for limiting lifting of the floating pressing head, when the floating pressing head is located at the lower limiting position, the lower end of the floating pressing head extends out of the limiting ring, and when the floating pressing head is located at the upper limiting position, the lower end of the floating pressing head retracts into the limiting ring; the press fit degree of the plunger tube and the valve body can be controlled, overpressure and underpressure are avoided, and products are convenient to load.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts production, specifically to an upper pressing head assembly for electromagnetic valve assembly, an upper pressing assembly and a pressing equipment. BACKGROUND

[0002] The electromagnetic valve of the automobile ABS is composed of a valve body, a moving iron, a spring, a fixed iron and a magnetic separation tube, the moving iron and the fixed iron are arranged inside the valve body and the magnetic separation tube, the moving iron and the fixed iron are separated by the spring, the lower end of the moving iron blocks the valve port of the lower end of the valve body, and the valve body and the magnetic separation tube are pressed together to form an electromagnetic valve shell by interference fit.

[0003] During the assembly of the electromagnetic valve, the valve body and the moving iron are placed in the lower pressing clamp as a lower assembly, the magnetic separation tube and the fixed iron are riveted and fixed together to become an integral part and are installed in the upper pressing head, and the magnetic separation tube and the valve body in the lower pressing clamp are combined together by the upper pressing head driven by the air cylinder or the electric cylinder.

[0004] In the above pressing process, since the pressing precision is required to be high, the magnetic separation tube and the valve body need to be pre-pressed to a certain degree and then precisely pressed in place to improve the efficiency and the yield, and in order to adjust the pressing degree of the pre-pressing, a limiting structure is arranged at the lower end of the pressing head to prevent over-pressing, but the limiting structure is easy to block the profiling hole at the lower end of the pressing head, which causes the magnetic separation tube to be inconvenient to assemble and affects the efficiency. SUMMARY

[0005] The utility model discloses a kind of upper pressing head assemblies for electromagnetic valve assembly, upper pressing assemblies and pressing equipment for solving the problems of prior art;The pressing degree of magnetic separation tube and valve body can be controlled, over-pressing and under-pressing are avoided, and product is convenient to assemble.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] An upper pressing head assembly for electromagnetic valve assembly, comprising a lifting plate arranged horizontally, the lifting plate is provided with a first mounting hole vertically penetrating, a mounting seat is fixedly sleeved in the first mounting hole, a second mounting hole is arranged in the middle part of the mounting seat, an active pressing rod is sleeved in the inside of the second mounting hole, and a first return spring is connected between the active pressing rod and the mounting seat; an installation groove extending upwards is arranged on the lower end surface of the active pressing rod, a floating pressing head is movably sleeved in the installation groove, and a profiling hole is arranged at the lower end of the floating pressing head; a limiting ring is fixedly sleeved on the outer circumferential side of the lower end of the active pressing rod, and a limiting structure for limiting the lifting of the floating pressing head is arranged in the installation groove; when the floating pressing head is at the lower limit position, the lower end of the floating pressing head extends out of the limiting ring; when the floating pressing head is at the upper limit position, the lower end of the floating pressing head is retracted into the limiting ring.

[0008] The interior of the floating pressure head is provided with a negative pressure cavity communicated with the profiling hole, the peripheral side wall of the floating pressure head is fixedly connected with an air pipe joint, the peripheral side wall of the movable pressure rod is provided with a strip-shaped avoiding slot communicated with the mounting slot, the peripheral side wall of the mounting seat is provided with a U-shaped avoiding slot communicated with the second mounting hole, and the air pipe joint sequentially penetrates through the strip-shaped avoiding slot and the U-shaped avoiding slot.

[0009] The strip-shaped avoiding slot is vertically arranged, when the air pipe joint abuts against the lower end of the strip-shaped avoiding slot, the lower end of the floating pressure head protrudes out of the limiting ring, and when the upper end of the floating pressure head abuts against the top of the mounting slot, the lower end of the floating pressure head is retracted into the limiting ring.

[0010] The top of the mounting slot is provided with a spring slot, the second reset spring is arranged in the spring slot, the upper end of the floating pressure head is connected with a guide pin, and the lower end of the second reset spring is sleeved on the outer side of the guide pin and abuts against the upper end of the floating pressure head.

[0011] The upper end of the movable pressure rod is connected with a baffle, the first reset spring is sleeved on the outer side of the movable pressure rod, the upper end of the first reset spring abuts against the baffle, and the lower end of the first reset spring abuts against the mounting seat.

[0012] The peripheral side of the movable pressure rod is provided with a vertical strip-shaped limiting slot, one side of the mounting seat is provided with a first threaded hole communicated with the second mounting hole, the first threaded hole is connected with a first limiting bolt, and the inner end of the first limiting bolt protrudes into the strip-shaped limiting slot.

[0013] The side wall of the limiting ring is provided with a second threaded hole communicated with the inner hole thereof, the second threaded hole is connected with a second limiting bolt, and the second limiting bolt is rotated into or out of the second threaded hole, so that the limiting ring is locked or separated from the movable pressure rod.

[0014] The upper pressing head assembly is used for assembling an electromagnetic valve, and the upper pressing head assembly comprises an upper pressing head, a floating pressure head, a movable pressure rod and a mounting seat.

[0015] The upper pressing head assembly is used for assembling an electromagnetic valve, and the upper pressing head assembly comprises an upper pressing head, a floating pressure head, a movable pressure rod and a mounting seat.

[0016] Compared with the prior art, the upper pressing head assembly has the advantages that:

[0017] The limit ring is arranged at the lower end of the movable pressure rod, and the final pressing degree of the magnetic isolation pipe and the valve body is controlled by adjusting the up-down position of the limit ring relative to the movable pressure rod, so that over-pressing and under-pressing are avoided; the floating pressure head is arranged to be movable up and down in the installation groove, so that when the floating pressure head is at the lower limit position, the limit ring is extended, the magnetic isolation pipe is facilitated to be installed into the profiling hole, and when the floating pressure head is at the upper limit position, the limit ring is retracted into the limit ring, and the limit ring is facilitated to limit and adjust the pressing degree. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the upper pressure head assembly in an embodiment of the present application;

[0019] Figure 2 It is a sectional view of the upper pressure head assembly in an embodiment of the present application;

[0020] Figure 3 It is a perspective view of the upper pressure head assembly in an embodiment of the present application;

[0021] Figure 4 It is a perspective view of the pressure assembly equipment in an embodiment of the present application;

[0022] Figure 5 It is a perspective view of the electromagnetic valve to be pressed in an embodiment of the present application;

[0023] In the figure: 1, lifting plate; 2, mounting seat; 201, U-shaped avoiding groove; 3, movable pressure rod; 301, strip-shaped avoiding groove; 302, strip-shaped limiting groove; 4, first return spring; 5, floating pressure head; 501, profiling hole; 502, negative pressure cavity; 6, limit ring; 7, air pipe joint; 8, second return spring; 9, guide pin; 10, baffle; 12, first limiting bolt; 13, second threaded hole; 14, upper mounting plate; 15, guide column; 16, pressure assembly driving device; 17, lifting driving device; 18, lower positioning clamping tool; 19, magnetic isolation pipe; 20, valve body. DETAILED DESCRIPTION

[0024] The technical scheme of the present application will be described clearly and completely in combination with the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0025] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, or it is the orientation or position relation that the utility model product uses usually, only is for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, constructs and operates with a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the term "first", "second", "third" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0026] 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 it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the utility model, it also needs to explain that, unless otherwise expressly provided and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected;It can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] As shown in Figures 1 to 2 An electromagnetic valve assembly upper pressing head assembly, including the horizontal setting of lifting plate 1, lifting plate 1 is equipped with the first installation hole of vertical penetration, the first installation hole is fixedly sleeved with mounting seat 2, the middle part of mounting seat 2 is equipped with the second installation hole, the inside of second installation hole is sleeved with movable pressure rod 3, movable pressure rod 3 is connected with first reset spring 4 between mounting seat 2;The lower end surface of movable pressure rod 3 is equipped with the installation groove of upward extension, the movable sleeve of installation groove is equipped with floating pressure head 5, the lower end of floating pressure head 5 is equipped with profiled hole 501;The lower end of movable pressure rod 3 is fixedly sleeved with limit ring 6, the installation groove is equipped with the limit structure of limiting the lifting of floating pressure head 5, when floating pressure head 5 is at lower limit, the lower end of floating pressure head 5 extends limit ring 6, when floating pressure head 5 is at upper limit, the lower end of floating pressure head 5 is retracted into limit ring 6.

[0029] The magnetic isolation tube to be pressed is installed in the profiling hole 501, the lifting plate 1 is driven to drive the mounting seat 2 to move downward, the mounting seat 2 drives the movable pressing rod 3 and the floating pressing head 5 to move downward, the magnetic isolation tube is stopped at a certain distance from the valve body, then the movable pressing rod 3 is driven to press downward, when the magnetic isolation tube touches the valve body, the floating pressing head 5 is upwardly displaced under the reaction force until the floating pressing head 5 touches the top of the mounting groove and is limited, at this time, the movable pressing rod 3 continues to press downward, the floating pressing head 5 makes the magnetic isolation tube and the valve body in interference fit, until the limiting ring 6 abuts against the lower positioning clamp tool 18, so that the magnetic isolation tube and the valve body are pressed to the predetermined degree.

[0030] The limiting ring 6 is sleeved at the lower end of the movable pressing rod 3, by adjusting the up-down position of the limiting ring 6 relative to the movable pressing rod 3, the final pressing degree of the magnetic isolation tube and the valve body can be controlled, so that over-pressing and under-pressing are avoided, by setting the floating pressing head 5 which can move up and down in the mounting groove, when the floating pressing head 5 is at the lower limit position, the limiting ring 6 is extended, so that the magnetic isolation tube is installed in the profiling hole 501, when the floating pressing head 5 is at the upper limit position, the limiting ring 6 is retracted into the limiting ring 6, so that the limiting ring 6 can limit and adjust the pressing degree.

[0031] In one embodiment, the inside of the floating pressing head 5 is provided with a negative pressure cavity 502 communicated with the profiling hole 501, the peripheral side wall of the floating pressing head 5 is fixedly connected with an air pipe joint 7, the peripheral side wall of the movable pressing rod 3 is provided with a strip-shaped avoiding groove 301 communicated with the mounting groove, the peripheral side wall of the mounting seat 2 is provided with a U-shaped avoiding groove 201 communicated with the second mounting hole, and the air pipe joint 7 sequentially passes through the strip-shaped avoiding groove 301 and the U-shaped avoiding groove 201. The air pipe joint 7 is connected with a suction pump, the magnetic isolation tube is adsorbed on the profiling hole 501 by negative pressure, so that the profiling hole 501 and the magnetic isolation tube can be gap-fitted, thereby facilitating the installation and separation of the magnetic isolation tube; the strip-shaped avoiding groove 301 and the U-shaped avoiding groove 201 are provided to prevent the interference between the mounting seat 2 and the movable pressing rod 3.

[0032] In one embodiment, the strip-shaped avoiding groove 301 is vertically arranged, when the air pipe joint 7 abuts against the lower end of the strip-shaped avoiding groove 301, the lower end of the floating pressing head 5 extends out of the limiting ring 6, when the upper end of the floating pressing head 5 abuts against the top of the mounting groove, the lower end of the floating pressing head 5 is retracted into the limiting ring 6. The lower end of the strip-shaped avoiding groove 301 limits the lower end of the floating pressing head 5, and the top of the mounting groove limits the upper end of the floating pressing head 5, so that additional limiting structures are not needed, and the structure is simplified.

[0033] In one embodiment, the top of the installation groove is provided with a spring groove, a second reset spring 8 is arranged in the spring groove, the upper end of the floating pressure head 5 is connected with a guide pin 9, the lower end of the second reset spring 8 is sleeved outside the guide pin 9 and abuts against the upper end of the floating pressure head 5. The guide pin 9 is used for guiding the second reset spring 8, and the second reset spring 8 is used for pushing the floating pressure head 5 downward to reset after the pressing, avoiding the floating pressure head 5 from being stuck by friction, thereby facilitating the installation of the magnetic isolation tube next time.

[0034] In one embodiment, the upper end of the movable pressing rod 3 is connected with a baffle 10, the first reset spring 4 is sleeved outside the movable pressing rod 3, the upper end of the first reset spring 4 abuts against the baffle 10, and the lower end of the first reset spring 4 abuts against the installation seat 2. When the movable pressing rod 3 is driven to move downward, the first reset spring 4 is compressed by the baffle 10, and the first reset spring 4 drives the movable pressing rod 3 to reset after the pressing is completed. The baffle 10 limits the upper end of the first reset spring 4, so that the first reset spring 4 supports the movable pressing rod 3, and the position of the movable pressing rod 3 relative to the installation seat 2 is fixed when the pressing is not performed.

[0035] In one embodiment, the movable pressing rod 3 is provided with a vertical strip-shaped limiting groove 302 on the side, one side of the installation seat 2 is provided with a first threaded hole communicated with the second installation hole, the first threaded hole is connected with a first limiting bolt 12, and the inner end of the first limiting bolt 12 extends into the strip-shaped limiting groove 302. The strip-shaped limiting groove 302 cooperates with the first limiting bolt 12 to prevent the movable pressing rod 3 from rotating or deflecting during the pressing.

[0036] In one embodiment, the side wall of the limiting ring 6 is provided with a second threaded hole 13 communicated with the inner hole, the second threaded hole 13 is connected with a second limiting bolt, and the second limiting bolt is screwed into or out of the second threaded hole 13 to lock or separate the limiting ring 6 and the movable pressing rod 3. The second threaded hole 13 cooperates with the second limiting bolt to facilitate the adjustment of the position of the limiting ring 6 relative to the movable pressing rod 3.

[0037] As shown in Figure 3 Another aspect of the present application is to provide an upper pressing mechanism for assembling an electromagnetic valve, which comprises the upper pressing head assembly described above; further comprising an upper installation plate 14, a guide column 15, a pressing driving device 16 and a lifting driving device 17 which are respectively fixedly connected with the upper installation plate 14; the guide column 15 vertically penetrates the lifting plate 1 and is in sliding cooperation with the lifting plate 1, the driving rod of the lifting driving device 17 is fixedly connected with the lifting plate 1, and the driving rod of the pressing driving device 16 is axially arranged with the movable pressing rod 3. The lifting driving device 17 is used for controlling the lifting of the lifting plate 1, and the pressing driving device 16 is used for driving the movable pressing rod 3 to press.

[0038] As shown in Figure 4As shown, another aspect of the present application improves a press-fitting device for assembling an electromagnetic valve, which comprises the upper press-fitting mechanism and further comprises a lower positioning and clamping tool 18 arranged below the upper press-fitting mechanism.

[0039] As shown, Figure 5 The product of the press-fitting device is an electromagnetic valve for automobile ABS, which comprises a magnetic isolation tube 19 and a valve body 20. The magnetic isolation tube 19 is to be fitted into the upper press-fitting mechanism, and the valve body 20 is to be fitted into the lower positioning and clamping tool 18. The inner side of the magnetic isolation tube 19 and the outer side of the valve body 20 are in interference fit. During pre-pressing, the magnetic isolation tube 19 is to be pressed into the valve body 20 to a certain extent, so as to facilitate subsequent fine pressing.

[0040] Although the embodiments of the present application 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 present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An upper ram assembly for solenoid valve assembly, characterized by, The utility model provides a kind of lifting plate (1) comprising horizontal arrangement, the lifting plate (1) is equipped with vertical first mounting hole, the first mounting hole is fixed with mounting seat (2) in set, the middle part of mounting seat (2) is equipped with second mounting hole, the inside of second mounting hole is equipped with movable pressure rod (3), movable pressure rod (3) is connected with first reset spring (4) between mounting seat (2); The lower end face of the movable pressure rod (3) is provided with an upwardly extending mounting groove, and the mounting groove movably sleeves a floating pressure head (5). The lower end of the floating pressure head (5) is provided with a profiling hole (501). The lower end of the movable pressure rod (3) is fixedly sleeved with a limiting ring (6) on the outer periphery side. The mounting groove is provided with a limiting structure for limiting the lifting of the floating pressure head (5). When the floating pressure head (5) is at the lower limit position, the lower end of the floating pressure head (5) protrudes out of the limiting ring (6). When the floating pressure head (5) is at the upper limit position, the lower end of the floating pressure head (5) is retracted into the limiting ring (6).

2. An upper ram assembly for solenoid valve assembly as defined in claim 1 wherein, The inside of the floating pressure head (5) is provided with a negative pressure cavity (502) in communication with the profiling hole (501). The peripheral side wall of the floating pressure head (5) is fixedly connected with an air pipe joint (7). The peripheral side wall of the movable pressure rod (3) is provided with a strip-shaped avoiding groove (301) in communication with the mounting groove. The peripheral side wall of the mounting seat (2) is provided with a U-shaped avoiding groove (201) in communication with the second mounting hole. The air pipe joint (7) sequentially passes through the strip-shaped avoiding groove (301) and the U-shaped avoiding groove (201).

3. An upper ram assembly for solenoid valve assembly as defined in claim 2 wherein, The strip-shaped avoiding groove (301) is vertically arranged. When the air pipe joint (7) abuts against the lower end of the strip-shaped avoiding groove (301), the lower end of the floating pressure head (5) protrudes out of the limiting ring (6). When the upper end of the floating pressure head (5) abuts against the top of the mounting groove, the lower end of the floating pressure head (5) is retracted into the limiting ring (6).

4. The upper ram assembly of claim 1, wherein: The top of the mounting groove is provided with a spring groove. The spring groove is provided with a second reset spring (8). The upper end of the floating pressure head (5) is connected with a guide pin (9). The lower end of the second reset spring (8) is sleeved on the outer side of the guide pin (9) and abuts against the upper end of the floating pressure head (5).

5. The upper ram assembly of claim 1, wherein: The upper end of the movable pressure rod (3) is connected with a baffle (10). The first reset spring (4) is sleeved on the outer side of the movable pressure rod (3). The upper end of the first reset spring (4) abuts against the baffle (10). The lower end of the first reset spring (4) abuts against the mounting seat (2).

6. An upper ram assembly for solenoid valve assembly as defined in claim 1 wherein, The peripheral side of the movable pressure rod (3) is provided with a vertical strip-shaped limiting groove (302). One side of the mounting seat (2) is provided with a first threaded hole in communication with the second mounting hole. The first threaded hole is connected with a first limiting bolt (12). The inner end of the first limiting bolt (12) protrudes into the strip-shaped limiting groove (302).

7. An upper ram assembly for solenoid valve assembly as defined in claim 1 wherein, The side wall of the limiting ring (6) is provided with a second threaded hole (13) communicated with the inner hole, the second threaded hole (13) is connected with a second limiting bolt, the second limiting bolt is screwed into or out of the second threaded hole (13), so that the limiting ring (6) is locked or separated from the movable pressing rod (3).

8. An upper press fitting mechanism for assembling a solenoid valve, characterized by comprising: The upper pressing head assembly comprises the upper pressing head assembly according to any one of claims 1 to 7; further comprising an upper mounting plate (14) and a guide column (15), a pressing driving device (16) and a lifting driving device (17) fixedly connected with the upper mounting plate (14) respectively; the guide column (15) vertically penetrates through the lifting plate (1) and is in sliding fit with the lifting plate (1); a driving rod of the lifting driving device (17) is fixedly connected with the lifting plate (1); a driving rod of the pressing driving device (16) is axially aligned with the movable pressing rod (3).

9. A press-fitting apparatus for assembling a solenoid valve, characterized by comprising: The upper pressing device of claim 8 further comprises a lower positioning clamping tool (18), which is arranged below the upper pressing device.

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