CN212316178U - Quenching press - Google Patents

Abstract

The utility model provides a quenching press machine, relating to the technical field of mechanical manufacturing equipment. The quenching press comprises a rack, and an oil cover, a workbench and a die which are arranged on the rack, wherein the oil cover can be buckled on the workbench to form a cavity which surrounds the die with the workbench, the die is used for positioning a workpiece to be processed, and a quenching medium is filled into the cavity to perform quenching treatment on the workpiece to be processed. The quenching press further comprises a liquid level detection device, a controller and an alarm, wherein the liquid level detection device and the alarm are respectively electrically connected with the controller, the liquid level detection device is used for detecting the liquid level height in the oil cover, the controller is used for judging whether the actual time spent from the beginning of filling the quenching medium into the cavity to the time when the liquid level in the cavity reaches the preset height exceeds the preset time, and when the actual time spent exceeds the preset time, the controller controls the alarm to give an alarm. The quenching press can more reliably detect whether the quenching medium is filled with the oil cover in time, and is favorable for improving the production safety.

Description

Quenching press

Technical Field

The utility model relates to a mechanical manufacturing equips technical field, particularly, relates to a quenching press.

Background

The quenching press is a full-automatic special machine tool for die pressing and quenching of inner and outer sleeve workpieces of railway bearings, and all the working procedures of feeding the workpieces, sleeving the workpieces to a die, die pressing, quenching, discharging and the like are automatically completed. In the actual use process, quenching oil is adopted as a quenching medium when the outer sleeve workpiece waits for quenching the workpiece, the quenching medium is input into the quenching oil cover from the bottom of the workpiece through a pipeline by a quenching oil pump at a certain pressure and flow, and overflows out of the oil return tank from the top of the oil cover after passing through the surface of the red hot workpiece in a certain flow direction, so that heat is taken away at a required speed, and the aim of cooling and quenching the workpiece is fulfilled. When the quenching medium is filled into the oil cover, the quenching medium is required to be ensured to be filled into the oil cover quickly and timely, the quenching medium is prevented from being ignited by the red hot workpiece to be treated, and further, safety accidents such as fire disasters are avoided.

In the prior art, whether the quenching medium is filled with the oil cover in time is mastered by arranging a flowmeter and a flow switch on a pipeline for conveying the quenching medium, but the detection reliability is lower, and the production safety is not improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quenching press, whether it can detect out the quenching medium more reliably in time be full of the oil blanket, is favorable to improving the security of production.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides a quenching press machine, including the frame and set up in oil cover, workstation and the mould of frame, the oil cover can be buckled in the workstation and form the cavity that surrounds the mould with the workstation between, the mould is used for fixing a position the work piece to be processed, be used for filling into quenching medium in the cavity in order to carry out quenching treatment to the work piece to be processed;

the device comprises a cavity, a cavity is formed in the cavity, the cavity is filled with quenching medium, the controller is used for judging whether the actual time spent from the beginning of filling the quenching medium into the cavity to the time when the liquid level in the cavity reaches a preset height exceeds the preset time, and when the actual time spent exceeds the preset time, the controller controls the alarm to give an alarm.

In an alternative embodiment, the quenching press comprises a driving device and an oil cover seat connected to the driving device, wherein the oil cover is fixed on the oil cover seat, and the driving device is used for driving the oil cover seat to drive the oil cover to move to be close to or far away from the workbench;

the liquid level detection device comprises a floating ball piece and an induction switch, the floating ball piece comprises a connecting rod, and a floating ball and an induction piece which are respectively fixed at two ends of the connecting rod, the connecting rod penetrates through the oil cover seat and can move relative to the oil cover seat, the floating ball is positioned in the cavity and can float upwards along with the rising of the liquid level, and the induction piece is positioned outside the cavity;

inductive switch is fixed in the oil blanket seat and is connected with the controller electricity, and when the floater rose and the come-up along with the liquid level, the response piece can move up in order to be close to inductive switch's induction zone, and the floater subassembly is configured to: when the liquid level in the cavity reaches a preset height, the sensing piece reaches the sensing area;

when the sensing member reaches the sensing area, the sensing switch can send a signal to the controller so that the controller can judge that it actually takes a long time.

In an alternative embodiment, the inductive switch comprises a proximity switch and the inductive element is a metal block.

In an alternative embodiment, the inductive switch comprises a photoelectric switch.

In an optional embodiment, the connecting rod is provided with a stop boss, the stop boss protrudes outwards from the circumferential side wall of the connecting rod along the radial direction of the connecting rod, and the stop boss is used for being clamped on the upper surface of the oil cover seat, so that the floating ball assembly is prevented from being separated from the oil cover seat from the lower side.

In an optional embodiment, a fixed seat is arranged on the oil cover seat, and the inductive switch is installed on the fixed seat.

In an alternative embodiment, the mold includes an upper mold attached to the oil jacket base and surrounded by the oil jacket, and a lower mold attached to the table.

In an alternative embodiment, the liquid level detection device comprises a float level meter, the float level meter extends into the cavity to detect the liquid level height in the cavity, and the float level meter is electrically connected with the controller.

In an alternative embodiment, the quenching press comprises two liquid level detection devices which are arranged at intervals and are respectively and electrically connected with the controller.

In an alternative embodiment, the preset time is 3 seconds.

The utility model discloses beneficial effect includes:

the quenching press comprises a rack, and an oil cover, a workbench and a die which are arranged on the rack, wherein the oil cover can be buckled on the workbench to form a cavity which surrounds the die with the workbench, the die is used for positioning a workpiece to be processed, and a quenching medium is filled into the cavity to perform quenching treatment on the workpiece to be processed. The quenching press further comprises a liquid level detection device, a controller and an alarm, wherein the liquid level detection device and the alarm are respectively electrically connected with the controller, the liquid level detection device is used for detecting the liquid level height in the oil cover, the controller is used for judging whether the actual time spent from the beginning of filling the quenching medium into the cavity to the time when the liquid level in the cavity reaches the preset height exceeds the preset time, and when the actual time spent exceeds the preset time, the controller controls the alarm to give an alarm. The quenching press is provided with the liquid level detection device, and the liquid level in the oil cover is directly detected through the liquid level detection device, so that the condition of charging the quenching medium in the oil cover can be reliably mastered. Once the quenching medium does not reach the preset liquid level within the preset time, the controller can control the alarm to give an alarm to remind an operator to move out the workpiece to be processed in time, and the red hot workpiece to be processed is prevented from igniting the quenching medium. The quenching press can more reliably detect whether the quenching medium is filled with the oil cover in time, and is favorable for improving the production safety.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a quenching press machine in an embodiment of the present invention when the oil jacket is not filled with a quenching medium;

FIG. 2 is a control schematic diagram of an alarm device in an embodiment of the present invention;

FIG. 3 is a schematic structural view of a quenching press machine when the oil jacket is filled with quenching medium according to an embodiment of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 1 according to an embodiment of the present invention.

Icon: 100-quenching press; 110-a rack; 111-a base; 112-upright post; 113-a cross beam; 116-a drive; 117-oil cover seat; 119-a fixed seat; 120-oil shield; 122-a chamber; 140-a workbench; 141-a liquid inlet; 142-a liquid inlet chamber; 143-a first outlet; 144-a second outlet; 150-liquid level detection means; 151-a float ball element; 152-an inductive switch; 153-connecting rod; 154-floating ball; 155-a sensing member; 156-stop boss; 160-a mold; 162-upper mold; 163-upper die holder; 164-a lower mold; 165-lower die holder; 170-a controller; 190-alarm; 200-workpiece to be processed.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

In the system design of the quench press 100, the piping that delivers the quench medium into the oil jacket 120 is equipped with a flow meter and a flow switch. The flow meter is used for detecting the flow value of the quenching medium (generally quenching oil) in the pipeline when the workpiece 200 to be processed is quenched, and the flow switch is used for detecting whether the quenching oil passes through the pipeline when the workpiece 200 to be processed is quenched. If either one of the two is abnormal, the system can give out light alarm to prompt the operator to deal with the abnormal condition in time. Because this equipment is one of them link of whole full-automatic heat treatment production line, belongs to unmanned operation basically, in long-term use, can have following three kinds of condition to take place: firstly, when a pump set has problems or foreign matters exist in a pipeline, a flow meter and a flow switch sometimes simultaneously break down and lose the alarm function; secondly, when the rear ends of the flow meter and the flow switch have leakage, a large amount of quenching oil leaks out; thirdly, when the lower end of the oil shield 120 is supported by a hard object, the quenching medium flows away from the lower end of the oil shield 120. The quenching oil cover 120 cannot be filled with quenching oil in time under the three conditions, and as a result, the red hot workpiece 200 to be processed can cause the quenching oil to be burnt, and the whole quenching production line can be used in severe cases, and the production efficiency and the economic benefit of enterprises can be directly influenced.

To solve the above problem, referring to fig. 1 and fig. 2, the embodiment provides a quenching press 100, which includes a frame 110, and an oil cover 120, a table 140 and a mold 160 disposed on the frame 110. The oil cover 120 can be fastened to the work table 140 and form a cavity 122 surrounding the mold 160 with the work table 140. The mold 160 is used for positioning the workpiece 200 to be processed, and the chamber 122 is used for filling the quenching medium to perform the quenching process on the workpiece 200 to be processed. The quenching press 100 comprises a liquid level detection device 150, a controller 170 and an alarm 190, wherein the liquid level detection device 150 and the alarm 190 are respectively electrically connected with the controller 170, the liquid level detection device 150 is used for detecting the liquid level height in the oil cover 120, the controller 170 is used for judging whether the actual time spent from the beginning of filling the quenching medium into the chamber 122 to the time when the liquid level in the chamber 122 reaches the preset height exceeds the preset time, and when the time exceeds the preset time, the controller 170 controls the alarm 190 to give an alarm.

The frame 110 includes a base 111, a column 112 fixed to the base 111, and a beam 113 connected to the column 112. In this embodiment, two vertical columns 112 are spaced apart from each other on the base 111, the two vertical columns 112 are perpendicular to the base 111 and spaced apart from each other, and two ends of the cross beam 113 are fixed to the two vertical columns 112 respectively. The uprights 112 and the cross-members 113 form a framework of a portal structure on the base 111.

The worktable 140 is disposed on the base 111, and the worktable 140 can move relative to the base 111 to facilitate loading and unloading. In the present embodiment, the workpiece 200 to be processed is a railway bearing housing workpiece. The mold 160 includes an upper mold 162 and a lower mold 164, the lower mold 164 is coupled to the table 140, and in detail, the lower mold 164 is fixed to the table 140 by a lower mold base 165. The lower die 164 is used to position the workpiece 200 to be processed. When the workpiece to be processed 200 is quenched, the workpiece to be processed 200 is placed on the lower die 164, thereby being fixed. Further, when the stage moves relative to the base 111, the loading and unloading of the workpiece 200 to be processed can be achieved. The upper die 162 is located above the lower die 164, and when the workpiece 200 to be processed is quenched, the upper die 162 extends into the workpiece 200 to be processed, and the upper die 162 is used for providing pressure for quenching the workpiece 200 to be processed.

A liquid inlet cavity 142 is provided in the worktable 140, and the worktable 140 is provided with a liquid inlet 141, a first liquid outlet 143 and a second liquid outlet 144 which are communicated with the liquid inlet cavity 142. The liquid inlet 141 is communicated with a pipeline for conveying quenching medium, a pump for driving the quenching medium to flow is arranged on the pipeline for conveying the quenching medium, and the first liquid outlet 143 penetrates through the upper surface of the workbench 140. The pump is electrically connected to the controller 170, and when the pump is turned on, the controller 170 may receive the turn-on signal and determine that the introduction of the quenching medium into the chamber 122 is to be started.

Referring to fig. 3, the quenching medium enters the liquid inlet cavity 142 through the liquid inlet 141 from the pipeline, and then flows out through the first liquid outlet 143 and the second liquid outlet 144. In this embodiment, the upper side of the lower mold 164 is recessed to form a substantially bowl-shaped structure, through holes are respectively formed in the lower mold 164 and the lower mold base 165, the through holes are communicated with each other, and the second liquid outlet 144 is communicated with the through holes, so that the quenching medium can enter the inner side of the lower mold 164 through the second liquid outlet 144, and the surface of the workpiece 200 to be processed, which is located on the inner side, can be quenched conveniently.

The quenching press 100 includes a driving device 116 and an oil jacket base 117 connected to the driving device 116. The oil cover 120 is fixed on the oil cover seat 117, and the driving device 116 is used for driving the oil cover seat 117 to drive the oil cover 120 to move so as to be close to or far away from the workbench 140. In this embodiment, the driving device 116 includes an oil cylinder, a cylinder body of the oil cylinder is fixed to the cross beam 113, a piston rod of the oil cylinder is connected to the oil cover seat 117, and the oil cylinder is vertically arranged, so that the oil cylinder can drive the oil cover seat 117 to move along the vertical direction.

In the present embodiment, the oil cover 120 is a cylindrical casing having only a sidewall in the circumferential direction, and both upper and lower ends are open. The oil cover 120 may be a cylindrical structure or a prismatic structure, and only needs to be able to enclose a space of a suitable size in the circumferential direction. The upper mold 162 is connected to the oil cover seat 117 and surrounded by the oil cover 120. In detail, the upper die 162 is fixed to the lower side of the oil jacket base 117 by an upper die base 163. Thus, the driving device 116 can simultaneously drive the oil cover 120 and the upper mold 162 to move up and down.

After the workpiece 200 to be processed is fixed to the lower mold 164 and moved to the proper position by the worktable 140, the driving device 116 drives the oil cover 120 to move downward to approach the worktable 140 until being fastened to the worktable 140. At the same time, the upper mold 162 located in the oil jacket 120 is moved downward until it is fitted with the workpiece 200 to be processed. When the workpiece 200 to be processed is simultaneously matched with the lower die 164 and the upper die 162, gaps for the circulation of the quenching medium are respectively formed between the surface of the workpiece 200 to be processed and the upper die 162 and the lower die 164, so that the quenching medium can conveniently flow through all the surfaces of the workpiece 200 to be processed, and the heat of the workpiece is taken away to carry out quenching treatment. The cooperation between the mold 160 and the workpiece is the prior art, the flow direction of the quenching medium is shown by the arrow in fig. 3, and the quenching medium finally flows out from the outlet on the oil cover 120 near the upper end, which is not described herein.

When the oil cover 120 contacts the workbench 140, the bottom end of the oil cover 120 is sealed with the upper surface of the workbench 140, so that a cavity 122 capable of storing quenching medium is formed between the oil cover 120 and the workbench 140, and the die 160 and the workpiece 200 to be processed are both positioned in the cavity 122. The quenching medium enters the oil cover 120 from the first liquid outlet 143 and the second liquid outlet 144, and the liquid level of the quenching medium in the chamber 122 rises continuously with the continuous filling of the quenching medium into the oil cover 120, so that the whole die 160 and the workpiece 200 to be processed are quickly submerged, and the quenching treatment is performed.

In order to quickly and timely detect whether the oil jacket 120 is filled with the quenching medium in the oil jacket 120, the quenching press 100 is provided with a liquid level detection device 150. It should be noted that "filling the oil jacket 120" means that the level of the quenching medium reaches a predetermined height within the oil jacket 120.

Referring to fig. 1 and 4, the liquid level detecting device 150 includes a floating ball 151 and a sensor switch 152. The float member 151 includes a link 153, and a float 154 and a sensor 155 fixed to both ends of the link 153, respectively. The connecting rod 153 penetrates through the oil cover seat 117 and can move relative to the oil cover seat 117, the floating ball 154 is positioned in the cavity 122 and can float upwards along with the rising of the liquid level, and the sensing element 155 is positioned outside the cavity 122.

Specifically, the oil cover seat 117 is provided with a through hole penetrating from the lower surface to the upper surface, and the connecting rod 153 is inserted into the through hole and can move relative to the oil cover seat 117. The upper end of the link 153 is connected to the sensor 155, and the lower end thereof is connected to the float 154. When the float 154 contacts the surface of the quench medium, the float 154 floats on the surface of the liquid in the chamber 122. When the level of the quenching medium in the chamber 122 rises, the float ball 154 floats upward and approaches the oil jacket seat 117.

The inductive switch 152 is fixed to the oil cover seat 117 and electrically connected to the controller 170. Specifically, for stable fixed inductive switch 152, be provided with fixing base 119 on oil cover seat 117, inductive switch 152 installs in fixing base 119, and fixing base 119 is used for supporting and fixed inductive switch 152. The inductive switch 152 is electrically connected to the controller 170. When the float 154 floats up with the rising of the liquid level, the sensing member 155 can move up to be close to the sensing area of the sensing switch 152.

In the present embodiment, the float 154 assembly is configured to: when the liquid level in the chamber 122 reaches a predetermined height, the sensing member 155 reaches the sensing area. Specifically, the length of the connecting rod 153 or the supporting height of the fixing base 119 can be adjusted.

When the sensing member 155 reaches the sensing region, the sensing switch 152 can send a signal to the controller 170 so that the controller 170 can judge that it actually takes a long time. Specifically, the controller 170 starts timing when receiving a pump start signal until the sensing member 155 reaches the sensing area, and the sensing switch 152 sends an indication signal to the controller 170, so that the controller 170 can obtain an actual elapsed time from when the pump is started until the liquid level in the oil cover 120 reaches a preset height. The preset time is set in advance in the controller 170, and the controller 170 may determine whether the actual spent time exceeds the preset time. In the present embodiment, the preset time is 3 seconds. In other embodiments, the preset time may be adjusted according to actual needs.

If the actual time spent does not exceed the preset time, the quenching medium is indicated to be filled with the oil cover 120 quickly in time, the red hot workpiece 200 to be processed can be cooled, the quenching medium cannot be ignited for the workpiece 200 to be processed, and the quenching treatment of the workpiece 200 to be processed does not need to be interrupted. If the actual time spent exceeds the preset time, it is indicated that the quenching medium cannot be timely and quickly filled in the oil cover 120, the quenching medium is easily ignited by the red and hot workpiece to be processed 200, and a fire hazard exists, at the moment, the controller 170 controls the alarm 190 to give an alarm to remind an operator to timely take the workpiece to be processed 200 out of the oil cover 120, and a fire is timely prevented from occurring. It should be noted that "the actual time period is longer than the preset time" means that the preset time period is exceeded and the controller 170 still does not receive the instruction from the inductive switch 152 since the pump is started to fill the quenching medium into the oil cover 120. At this time, the controller 170 controls the alarm 190 to alarm.

In the present embodiment, the inductive switch 152 includes a proximity switch, and the inductive element 155 is a metal block. When the metal block approaches to the induction area of the proximity switch, the switch can send out an electric command rapidly without contact, pressure and spark. Is rapid and reliable, and is beneficial to improving the safety.

In other embodiments, the inductive switch 152 may also be an electro-optical switch. The device utilizes the shielding or reflection of the detected object to the light beam and the synchronous circuit to connect the circuit, thereby detecting the existence of the object. The object is not limited to metal, and all objects that reflect light (or block light) can be detected. Therefore, the sensing member 155 may not be a metal block at this time.

When the quenching medium is not filled into the oil cover 120, the floating ball 151 is hung on the oil cover seat 117 by gravity. Specifically, in the present embodiment, the connecting rod 153 is provided with a stop boss 156, the stop boss 156 protrudes outward from the circumferential side wall of the connecting rod 153 in the radial direction of the connecting rod 153, and the stop boss 156 is used for being clamped on the upper surface of the oil cover seat 117, so as to prevent the floating ball 154 assembly from being separated from the oil cover seat 117 from below. In other embodiments, the horizontal dimension of the metal block is set to be larger than the size of the through hole of the oil cover seat 117 directly, so that the floating ball member 151 is directly caught on the oil cover seat 117 by the metal block.

In order to further improve the safety of the whole quenching press machine 100, the quenching press machine 100 comprises two liquid level detection devices 150, and the two liquid level detection devices 150 are arranged at intervals and are respectively and electrically connected with the controller 170. Specifically, the two liquid level detection devices 150 are symmetrically disposed on opposite sides of the upper die base 163. When the quenching medium is filled in the oil cover 120, the floating ball members 151 of the two liquid level detection devices 150 move upward at the same time. Because the two floating ball pieces 151 are the same in length and the oil cover seat 117 is horizontally arranged, the liquid level of the quenching medium is always horizontal, so that the induction pieces 155 on the two floating ball pieces 151 can simultaneously reach the induction areas of the corresponding induction pieces 155, and the detection results of the two liquid level detection devices 150 are always consistent. Once one of the liquid level detection devices 150 fails, the other liquid level detection device 150 can still effectively and reliably detect whether the quenching medium is filled in the oil cover 120 in time, so that an alarm can be given in time when hidden dangers exist. In other embodiments, only one liquid level detection device 150 may be provided in the quenching press 100.

It is understood that in other embodiments, the liquid level detecting device 150 may also be a float 154 level meter, the float 154 level meter is fixed to the oil cover seat 117, the float 154 level meter extends into the chamber 122 to detect the liquid level in the chamber 122, and the float 154 level meter is electrically connected to the controller 170 to send the liquid level data to the controller 170 in real time. At this time, preset height data of the liquid level needs to be set in the controller 170 in advance, once the actual liquid level height in the oil cover 120 reaches the preset height, the controller 170 receives an instruction to acquire the actual spent time length and judges whether the actual spent time length exceeds the preset time, and if the actual spent time length exceeds the preset time, the controller 170 controls the alarm 190 to give an alarm.

The alarm 190 may be disposed on the frame 110, and the alarm 190 may be an audible and visual alarm 190.

The working principle and the working process of the quenching press 100 are as follows:

the workpiece 200 to be processed is placed on the lower die 164 and is adjusted in position by the movement of the table 140. The drive 116 drives the oil jacket 120 down into contact with the table 140 to form the chamber 122. The workpiece to be processed 200 and the upper and lower dies 162, 164 are located within the chamber 122. The pump is started and the chamber 122 is filled with quench medium via the table 140 through the delivery conduit. When the float 154 contacts the surface of the quench medium, the float 154 floats on the surface of the liquid in the chamber 122. When the level of the quenching medium in the chamber 122 rises, the float 154 rises and the sensor 155 moves upward to approach the sensing area of the sensor switch 152.

When the sensing member 155 reaches the sensing region, the sensing switch 152 can send a signal to the controller 170, and the controller 170 can obtain the actual time taken from when the pump is turned on until the liquid level in the oil cover 120 reaches the preset height. The controller 170 determines whether the actual spent time exceeds the preset time, and if the actual spent time does not exceed the preset time, the workpiece 200 to be processed does not ignite the quenching medium, and the quenching process can be performed on the workpiece 200 to be processed normally without interruption. If the actual time spent exceeds the preset time, that is, the time spent exceeds the preset time but the controller 170 still does not receive the instruction sent by the inductive switch 152, the controller 170 controls the alarm 190 to give an alarm to remind an operator to take the workpiece 200 to be processed out of the oil cover 120 in time, so that a fire is prevented in time.

The quenching press 100 can timely and reliably detect whether the quenching medium is timely filled in the oil cover 120 through the liquid level detection device 150, so that the alarm 190 can be controlled by the controller 170 to give an alarm when the quenching medium is not timely filled in the oil cover 120, an operator is reminded to timely move out the workpiece 200 to be processed, the red and hot workpiece 200 to be processed is prevented from igniting the quenching medium, and the production safety is improved.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The quenching press is characterized by comprising a rack, an oil cover, a workbench and a die, wherein the oil cover, the workbench and the die are arranged on the rack, the oil cover can be buckled on the workbench, a cavity surrounding the die is formed between the oil cover and the workbench, the die is used for positioning a workpiece to be processed, and a quenching medium is filled into the cavity to quench the workpiece to be processed;

still include liquid level detection device, controller and alarm, liquid level detection device with the alarm respectively with the controller electricity is connected, liquid level detection device is used for detecting liquid level height in the oil cover, the controller be used for judging from begin to fill in the chamber quenching medium extremely whether the time is exceeded when the liquid level reachs the height of predetermineeing in the chamber actually spent time, when surpassing when predetermineeing the time, the controller control the alarm is reported to the police.

2. The quenching press machine according to claim 1, comprising a driving device and an oil cover seat connected to the driving device, wherein the oil cover is fixed on the oil cover seat, and the driving device is used for driving the oil cover seat to drive the oil cover to move to be close to or far away from the workbench;

the liquid level detection device comprises a floating ball piece and an induction switch, the floating ball piece comprises a connecting rod, and a floating ball and an induction piece which are respectively fixed at two ends of the connecting rod, the connecting rod penetrates through the oil cover seat and can move relative to the oil cover seat, the floating ball is positioned in the cavity and can float upwards along with the rise of the liquid level, and the induction piece is positioned outside the cavity;

the inductive switch is fixed on the oil cover seat and electrically connected with the controller, when the floating ball floats upwards along with the rise of the liquid level, the inductive part can move upwards to be close to an inductive area of the inductive switch, and the floating ball assembly is configured to: when the liquid level in the cavity reaches the preset height, the sensing piece reaches the sensing area;

when the sensing piece reaches the sensing area, the sensing switch can send a signal to the controller so that the controller can judge the actual spent time.

3. The quench press of claim 2 wherein the inductive switch comprises a proximity switch and the inductive element is a metal block.

4. The quench press of claim 2 wherein the inductive switch comprises a photoelectric switch.

5. The quench press of claim 2, wherein the connecting rod is provided with a stopper boss protruding from a circumferential side wall of the connecting rod in a radial direction of the connecting rod, the stopper boss being adapted to be caught on an upper surface of the oil jacket base, thereby preventing the float ball assembly from being separated from the oil jacket base from below.

6. The quenching press machine according to claim 2, wherein the oil jacket base is provided with a fixed base, and the inductive switch is mounted on the fixed base.

7. The quench press of claim 2, wherein the die comprises an upper die and a lower die, the upper die being connected to the oil jacket base and surrounded by the oil jacket, the lower die being connected to the table.

8. The quench press of claim 1, wherein the level detection device comprises a float level gauge extending into the chamber to detect a level within the chamber, the float level gauge being electrically connected to the controller.

9. The quenching press machine according to claim 1, wherein the quenching press machine comprises two liquid level detection devices which are arranged at intervals and are respectively electrically connected with the controller.

10. The quench press of claim 1 wherein the predetermined time is 3 seconds.

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