CN102728722A - Stamping mould of water level sensor - Google Patents

Abstract

The invention discloses a stamping mould of a water level sensor. A sealing cover and a pedestal of the water level sensor are in clamping connection with each other; the stamping mould is arranged on a stamping machine and comprises an upper die and a lower die; the upper die is arranged on a stamping piston rod of the stamping machine; the lower die is arranged at a position just below the upper die on the stamping machine; during stamping, the pedestal is placed on the lower die; the sealing cover is also placed on the lower die and is positioned above the pedestal; and the upper die moves downwards to hold down the sealing cover to keep the sealing cover and the pedestal in clamping connection with each other. Compared with the prior art, the stamping mould realizes stamping of the butting water level sensor, so that the assembly machining operation of the sealing cover and the pedestal is easy, the spent time is less, and the machining efficiency is increased.

Description

A stamping die for a water level sensor

technical field

The invention relates to a stamping die for a water level sensor.

Background technique

At present, for the water level sensor on the washing machine, the cover and the base are wrapped by stamping along the edge of the iron ring on the stamping die to realize the sealed connection of the earring base of the cover. When stamping on the stamping die, there are The processing operation is complex and the operation time is long. Therefore, there is currently a water level sensor that connects the cover and the base in a clamping manner, but the currently used stamping dies cannot perform stamping processing on this clamping water level sensor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stamping die for a water level sensor, and the stamping die must be able to perform stamping processing on a clip-on water level sensor.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a stamping die for a water level sensor, the cover and the base of the water level sensor are snap-connected, the stamping die is installed on a stamping machine, and the stamping die includes an upper die and the lower mold, the upper mold is installed on the stamping piston rod of the stamping machine, the lower mold is installed on the stamping machine at the position directly below the upper mold, when stamping, the base is placed on the lower mold, and the cover is also placed on the lower mold and Located above the base, the upper die moves downward to press down on the cover so that the cover is engaged with the base.

The lower die is divided into two parts, namely a top block and a top block, both of which are cylindrical with one end open and one end closed, the top block is placed inside the top block, and the base is placed on the top On the opening end of the block, the cover is placed on the opening end of the top cover block, and a spring return mechanism for jacking up the lower die is also connected to the lower die.

The cover is provided with a ring groove, and the open end of the top cover block is inserted into the ring groove of the cover to jack up the cover.

The stamping die also includes a lower die base and a lower die base, the lower die base is cylindrical with open ends and a hollow interior, the lower die base is connected with the lower die base to close one of the ports of the lower die base, and the lower die base forms a A cavity that accommodates the lower die and spring return mechanism.

The spring return mechanism includes a vertically arranged ejector rod and a spring sleeved on the ejector rod. One end of the ejector rod has a nut and the other end has threads, and the end of the ejector rod with threads passes through the lower template and the top cover block The light hole provided on the top is screwed to the top block, one end of the spring is against the top cover block, and the other end is against the lower template.

The stamping die also includes a vertically arranged screw, one end of the screw is screwed to the lower template, and the other end is screwed to the stamping machine, and two backing plates are set on the screw, and the two backing plates There is a rubber pad set on the screw rod between them, and a nut is arranged at the backing plate at the lower end of the screw rod, and the backing plate at the upper end of the screw rod leans against the nut of the ejector rod.

The wall thickness of the opening end of the top cover block is smaller than the wall thickness of other parts, and the wall thickness of the opening end of the top block is also smaller than the wall thickness of other parts.

A rectangular notch is formed on the outer walls of the top cover block, the top block and the lower die base, and the notch extends axially from the opening ends of the top cover block, the top block and the lower die base respectively.

The present invention adopts the above-mentioned technical scheme. Compared with the prior art, the stamping die realizes the stamping process of the snap-fit water level sensor, makes the assembly process of the cover and the base simple, takes less time, and improves the process efficiency.

Description of drawings

Fig. 1 is the structural representation of stamping die of the present invention;

Fig. 2 is the structural representation of the lower mold base of stamping die of the present invention;

Fig. 3 is the schematic structural view of the roof block of stamping die of the present invention;

Fig. 4 is the structural representation of the top block of stamping die of the present invention;

Fig. 5 is the use state diagram (initial state) of stamping die of the present invention;

Fig. 6 is a use state diagram (closed state) of the stamping die of the present invention;

Fig. 7 is a schematic structural diagram of a snap-in water level sensor;

The marks in the above figures are: 1. upper mold; 2. top cover block; 3. top block; 4. lower mold base; 5. ejector rod; 6. spring; Backing plate; 10, rubber pad; 11, nut; 12, screw rod; 13, cover; 14, base; 15, ring groove; 16, gap; 17, gap; 18, gap.

Detailed ways

As shown in Figure 1, it is a stamping die of a water level sensor of the present invention, the cover 13 and the base 14 of the water level sensor are snap-fit connections, the structure of the water level sensor is shown in Figure 7, and the cover 13 has a ring groove 15 , the base 14 has a cylindrical outer wall and a flange connected to the outer wall and engaged with the cover 13 . The punching die is installed on the punching machine, and the punching die includes an upper die 1 and a lower die, the upper die 1 is installed on the stamping piston rod of the punching machine, and the lower die is installed on the punching machine at a position directly below the upper die 1, when stamping, The base 14 is placed on the lower mold, and the cover 13 is also placed on the lower mold and is positioned above the base 14 .

The lower mold is divided into two parts, namely the top block 2 and the top block 3, as shown in Figure 3 and Figure 4, the structure of the top cover block 2 and the top cover respectively, the top cover block 2 and the top block 3 are both open at one end 1. A cylindrical shape with one end closed. As shown in FIG. During stamping, as shown in Figure 5 and Figure 6, the base 14 of the water level sensor is placed on the open end of the top block 3, the inner diameter of the top block 3 is the same as the diameter of the outer wall of the base 14, and the top block 3 is placed on the base 14 On the flange, the cover 13 is placed on the open end of the top cover block 2, and the open end of the top cover block 2 is inserted into the ring groove 15 of the cover 13 to lift the cover 13 up. The lower mold of the stamping die adopts the above-mentioned structure, which can stably place the cover 13 and the base 14 at the same time, and the cover 13 and the base 14 can be clamped by pressing down the upper mold 1, and the assembly efficiency is high. In addition, the lower mold is also connected with a spring return mechanism that jacks up the lower mold.

As shown in FIG. 1 , the stamping die also includes a lower mold base 4 and a lower template 8 . As shown in Figures 1 and 2, the lower mold base 4 is cylindrical with open ends and a hollow interior. The lower template 8 and the lower mold base 4 are tightly connected by three screws 7, and the lower mold base 8 closes the bottom of the lower mold base 4. The lower port forms a cavity on the lower mold base 4 to accommodate the lower mold and the spring return mechanism. The outer wall of the top cover block 2 is attached to the inner wall of the lower mold base 4, and the lower mold base 4 is connected to the top cover block 2 and the top block. 3 coaxial.

As shown in Figure 1, the spring return mechanism includes two vertically arranged push rods 5 and a spring 6 sleeved on the push rods 5, one end of the push rod 5 has a nut, the other end has a screw thread, and the push rod 5 has a screw thread. One end passes through the light hole provided on the lower template 8 and the top cover block 2 to be screwed with the top block 3 , one end of the spring 6 is against the top cover block 2 , and the other end is against the lower template 8 . The spring return mechanism is buffered by the spring 6. When the upper die 1 is pressed down, the impact force will not be too large and damage the plastic workpiece. At the same time, after the stamping is completed, the spring 6 bounces back and the workpiece can bounce up instead It is stuck in the lower mold, so that it is easy to take out, which improves the safety performance of the processing operation and reduces unnecessary scrap.

As shown in Figure 1, the stamping die also includes a vertically arranged screw rod 12, one end of the screw rod 12 is screwed to the lower template 8, and the other end is screwed to the punching machine, and two backing plates 9 are sleeved on the screw rod 12, Between the two backing plates 9, there is a rubber pad 10 sleeved on the screw rod 12, and the rubber pad 10 plays a role of buffering and shock absorption, and further reduces the impact force of the processed workpiece. A nut 11 is arranged at the backing plate 9 at the lower end on the screw rod 12 , and when installing, the nut 11 is tightened so that the backing plate 9 at the upper end of the screw rod 12 leans against the nut of the push rod 5 .

As shown in Fig. 1 and Fig. 3, the wall thickness of the opening end of the top cover block 2 is smaller than the wall thickness of the remaining parts, and the wall thickness of the opening end of the top cover block 2 is smaller, so that the top cover block 2 can be inserted into the ring groove of the cover 13 within 15. As shown in Figures 1 and 4, the wall thickness of the opening end of the top block 3 is also smaller than the wall thickness of the rest of the parts, and there is a certain annular space between the outer wall of the opening end of the top block 3 and the inner wall of the top cover block 2. During processing, the descending of the cover 13 will not be hindered, leaving space for the cover 13 to descend.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a rectangular notch 16, 17, 18 is formed on the outer wall of the top cover block 2, the top block 3 and the lower mold base 4, and the notch 16 is formed from the top cover The opening end of the block 2 begins to extend axially, the gap 17 extends axially from the opening end of the top block 3, and the gap 18 extends axially from the opening end of the lower mold base 4, and the gaps 16, 17, 18 are set to be It is convenient to put in the workpiece, reserve space for the downward movement of the protruding part on the workpiece, and can be used to determine the direction of the workpiece, that is, the insert end on the base 14 is put into the notches 16, 17, 18.

Compared with the prior art, the stamping die realizes the stamping process of the clamping water level sensor, which makes the assembly process of the cover 13 and the base 14 simple, takes less time, and improves the process efficiency.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as various insubstantial improvements are adopted in the method concept and technical solutions of the present invention, or there is no improvement Directly applying the conception and technical solutions of the present invention to other occasions falls within the protection scope of the present invention.

Claims (8)

1. A stamping die for a water level sensor, the cover (13) and the base (14) of the water level sensor are snap-connected, and the stamping die is installed on a stamping machine, characterized in that: the stamping die includes an upper die (1) and the lower mold, the upper mold (1) is installed on the stamping piston rod of the stamping machine, the lower mold is installed on the stamping machine at the position directly below the upper mold (1), and the base (14) is placed on the lower mold during stamping , the cover (13) is also placed on the lower mold and is located above the base (14), and the upper mold (1) moves downward to press the cover (13) so that the cover (13) is engaged with the base (14). 2. The stamping die of the water level sensor according to claim 1, characterized in that: the lower die is divided into two parts, namely the top block (2) and the top block (3), and the top block (2) and The top block (3) is cylindrical with one end open and one end closed, the top block (3) is placed inside the top cover block (2), and the base (14) is placed on the open end of the top block (3), so The cover (13) is placed on the open end of the top cover block (2), and the lower mold is also connected with a spring return mechanism for jacking up the lower mold. 3. The stamping die of the water level sensor according to claim 2, characterized in that: the cover (13) is provided with a ring groove (15), and the opening end of the top cover block (2) is inserted into the cover ( 13) the cover (13) will be jacked up in the annular groove (15). 4. The stamping die of the water level sensor according to claim 3, characterized in that: the stamping die also includes a lower mold base (4) and a lower template (8), the lower mold base (4) is open at both ends, and the inner Hollow cylindrical, the lower template (8) is connected to the lower mold base (4) to close one of the ports of the lower mold base (4), and the lower mold base (4) is formed to accommodate the lower mold and the spring return mechanism cavity. 5. The stamping die of the water level sensor according to claim 4, characterized in that: the spring return mechanism includes a vertically arranged ejector rod (5) and a spring (6) sleeved on the ejector rod (5), One end of the ejector rod (5) has a nut and the other end has a thread, and the threaded end of the ejector rod (5) passes through the light hole provided on the lower template (8) and the top cover block (2) and the top block (3) Threaded connection, one end of the spring (6) is against the top cover block (2), and the other end is against the lower template (8). 6. The stamping die of the water level sensor according to claim 5, characterized in that: the stamping die also includes a vertically arranged screw (12), one end of the screw (12) is connected to the lower template (8) Threaded connection, the punching machine threaded connection at the other end, two backing plates (9) are set above the screw rod (12), between the two backing plates (9) there is a rubber covering the screw rod (12) The spacer (10) is provided with a nut (11) at the backing plate (9) at the lower end of the screw (12), and the backing plate (9) at the upper end of the screw (12) is against the top of the push rod (5) on the nut. 7. The stamping die of the water level sensor according to any one of claims 2 to 6, characterized in that: the wall thickness of the opening end of the top cover block (2) is smaller than the wall thickness of the rest of the parts, and the top block (3) The wall thickness of the opening end is also smaller than the wall thickness of the rest. 8. The stamping die of the water level sensor according to claim 7, characterized in that: a rectangular shape is formed on the outer walls of the top cover block (2), top block (3) and lower die base (4). Notches (16, 17, 18), the notches (16, 17, 18) extend axially from the opening ends of the top cover block (2), the top block (3) and the lower mold base (4) respectively.

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