Self-positioning type quenching hydraulic machine

Abstract

The utility model discloses a self-positioning quenching hydraulic machine, which relates to the technical field of hydraulic equipment and comprises a hydraulic machine body, two sides of the hydraulic machine body are connected with support frames, the bottom of the hydraulic machine body is connected with a first guide rod, and the bottom of the first guide rod is connected with a lower die. The output end of the hydraulic machine body is connected with an upper die, the upper die slides on the first guide rods, a water tank is arranged at the bottom of the lower die, and sliding sleeves are symmetrically arranged on the two sides of the water tank. According to the self-positioning type quenching hydraulic machine, unnecessary abrasion caused by up-and-down movement of the die is avoided, meanwhile, the rising condition of the water tank is conveniently controlled, the effect of accurate control can be achieved, size change caused by inconsistent shrinkage due to slow cooling is avoided, the deformation condition of a workpiece is reduced, and the service life of the workpiece is prolonged. And the water tank only needs to be larger than the mold, so that the occupied area is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic equipment, and more specifically, to a self-positioning quenching hydraulic press. Background Art

[0002] A hydraulic press is a machine that uses hydrostatic pressure to process products such as metals, plastics, rubbers, woods, powders, etc., and is commonly used in pressing processes and press-forming processes. During the working process of a hydraulic press, it is often necessary to press materials in a high-temperature state with a mold.

[0003] When a hydraulic press performs high-temperature stamping, it will adopt a quenching and cooling method to improve the hardness and strength of the workpiece. At the same time, rapid cooling can help lock the geometry of the part, reduce dimensional changes caused by inconsistent shrinkage due to slow cooling, and reduce the deformation of the workpiece. For example, the Chinese patent with the application number 202122654305.2 discloses a hot pressing and quenching device for a lawn mower blade, the structure of which includes a pressing mechanism, a lifting mechanism, and a water tank; the lifting mechanism is installed in the water tank, and the pressing mechanism is installed on the lifting mechanism; the heated blade steel plate is pressed and formed by the pressing mechanism; the lifting mechanism drives the pressing mechanism to move up and down, and the pressing mechanism clamping the blade steel plate is lowered into the water tank for quenching; a water inlet pipe is communicated and arranged at the upper part of the side surface of the water tank, and a water outlet pipe is communicated and arranged at the lower part of the side surface of the water tank. This hot pressing and quenching device for a lawn mower blade drives the workpiece to move downward through the lifting mechanism at the top, so as to be immersed in the water tank to achieve the effect of quenching. However, there are still the following problems:

[0004] 1. The mold often moves up and down, which will cause unnecessary wear due to frequent movement, resulting in a reduction in quality during high-temperature forming. At the same time, the entire hot fluid device is placed in the water tank, making the size of the entire water tank too large, and unnecessary structures such as support frames are also arranged in the water tank, increasing the floor area.

[0005] 2. After the workpiece and the mold enter the coolant, although it has the effect of cooling the workpiece and the mold, since the water body has been in a static state and the water body does not flow, the coolant at the bottom cannot come into contact with the mold and the workpiece, and the coolant in contact with the mold has always been the surrounding coolant, which will cause the heat dissipation efficiency to continue to decrease.

[0006] Therefore, it is very necessary to propose a self-positioning quenching hydraulic press to solve the above problems. Content of the Utility Model

[0007] In view of the above problems, the utility model provides a self-positioning quenching hydraulic press; it has the function of quickly cooling the workpiece and the mold to reduce the deformation of the workpiece.

[0008] The present utility model specifically adopts the following technical solutions to achieve the above purposes:

[0009] A self-positioning quenching hydraulic press, comprising a hydraulic press body. Both sides of the hydraulic press body are connected with support frames. The bottom of the hydraulic press body is connected with a first guide rod. The bottom of the first guide rod is connected with a lower die. The output end of the hydraulic press body is connected with an upper die. The upper die slides on the first guide rod. A water tank is arranged at the bottom of the lower die. Slide sleeves are symmetrically arranged on both sides of the water tank. The bottom of both sides of the support frame is connected with a second guide frame. The slide sleeves slide on the second guide frame. A hydraulic rod is connected between the water tank and the support frame;

[0010] A spraying device is arranged in the water tank. The spraying device comprises a strip-shaped nozzle, a water storage device and a water supply device. The water supply device comprises a telescopic air pump. A first connecting pipe is connected between the bottom of the telescopic air pump and the water storage device. A one-way valve is connected to the bottom of the telescopic air pump and the first connecting pipe;

[0011] The strip-shaped nozzle is located at the top of the inner wall of the water tank. A second connecting pipe is connected between the strip-shaped nozzle and the water storage device.

[0012] Preferably, the water storage device comprises a support sleeve and a telescopic pipe located at the top of the support sleeve. A hollow vertical rod is connected inside the support sleeve. The top of the telescopic pipe is connected with a moving plate. The moving plate is slidably connected up and down on the outer wall of the vertical rod.

[0013] Preferably, a water inlet hole is arranged at the bottom of the vertical rod. The first connecting pipe is connected to the support sleeve. The telescopic air pump is communicated with the support sleeve through a first communicating pipe.

[0014] Preferably, a limiting plate is connected to the top of the vertical rod. A spring is connected between the limiting plate and the moving plate. The second connecting pipe is connected to the top of the vertical rod.

[0015] Preferably, a spring for driving and resetting is connected inside the telescopic air pump. The telescopic air pump is located at the bottom of the lower die.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By arranging a water tank capable of moving up and down on the support frame in this device, the die does not need to move up and down, avoiding unnecessary wear of the die caused by up and down movement. At the same time, it is convenient to control the rising situation of the water tank, which can play a role in precise control, avoiding dimensional changes caused by inconsistent shrinkage due to slow cooling, reducing the deformation of the workpiece, and the water tank only needs to be set larger than the die, reducing the floor area.

[0018] 2. A spraying device is arranged in the water tank of this device. When the water tank rises, the spraying device can increase the water flow, increase the contact area between the mold and the coolant, and improve the cooling efficiency. At the same time, when the mold moves out of the coolant, the spraying device can also spray the mold, further improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the hydraulic press body in the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the support frame and the water tank in the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the water tank and the spraying device in the present utility model;

[0022] Figure 4 It is a cross-sectional view of the structure of the spraying device in the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure in which the hydraulic rod is fixed to the top of the water tank in the present utility model.

[0024] REFERENCE MARKS:

[0025] 101, hydraulic press body; 102, support frame; 103, first guide rod; 104, lower mold; 105, upper mold; 106, water tank; 107, sliding sleeve; 108, second guide frame; 109, hydraulic rod; 110, strip-shaped nozzle; 111, telescopic air pump; 112, first connecting pipe; 113, second connecting pipe; 114, support sleeve; 115, telescopic pipe; 116, vertical rod; 117, moving plate; 118, limiting plate; 119, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5, A self-positioning quenching hydraulic press, including a hydraulic press body 101. Support frames 102 are connected to both sides of the hydraulic press body 101. A hydraulic press is a mechanical device that uses liquid hydrostatic pressure to process materials such as metals, plastics, rubbers, woods, powders, etc. This is a mature device and will not be elaborated too much here. The support frame 102 is a support structure. The water tank 106 is slidably connected to the support frame 102 up and down through the second guide frame 108. A first guide rod 103 is connected to the bottom of the hydraulic press body 101. A lower die 104 is connected to the bottom of the first guide rod 103. The output end of the hydraulic press body 101 is connected to an upper die 105. Parts that need to be formed at high temperature are placed on the lower die 104. By the downward movement of the upper die 105, the workpiece is extruded and formed. The upper die 105 slides on the first guide rod 103. A water tank 106 is provided at the bottom of the lower die 104. Coolant is stored in the water tank 106. Sliding sleeves 107 are symmetrically arranged on both sides of the water tank 106. Second guide frames 108 are connected to the bottom of both sides of the support frame 102. The sliding sleeves 107 slide on the second guide frames 108. The water tank 106 slides up and down on the second guide frames 108 through the sliding sleeves 107. A hydraulic rod 109 is connected between the water tank 106 and the support frame 102. The water tank 106 is driven to move up and down through the hydraulic rod 109, so that the die and the workpiece can be immersed in the coolant. In one embodiment, refer to Figure 5 , The hydraulic rods 109 are fixed to the top of both sides of the water tank 106. When the hydraulic rods 109 retract, the water tank 106 moves upward, and when they extend, the water tank 106 moves downward;

[0028] When the water tank 106 moves upward, the water body will be in a static state, resulting in a decrease in the heat dissipation efficiency. The following provides a structure that can make the water body flow: Refer to Figure 3 and Figure 4 , A spraying device is arranged in the water tank 106. When the water tank 106 moves upward, it will squeeze the spraying device, so that the water body can flow, increasing the contact between the coolant and the die. The spraying device includes a strip-shaped nozzle 110, a water storage device and a water supply device. The water supply device includes a telescopic air pump 111. A first connecting pipe 112 is connected between the bottom of the telescopic air pump 111 and the water storage device. A check valve is connected to the bottom of the telescopic air pump 111 and the first connecting pipe 112. When the water tank 106 rises, it will squeeze the water supply device, and the coolant can enter the water storage device from the telescopic air pump 111. The water storage device transports the coolant to the strip-shaped nozzle 110 through the second connecting pipe 113 under the downward extrusion of the spring 119 and sprays it onto the die. When the telescopic air pump 111 resets upward, the external coolant will enter the telescopic air pump 111 from the check valve at the bottom;

[0029] Refer toFigure 3 and Figure 4 The strip-shaped nozzle 110 is located at the top of the inner wall of the water tank 106. A second connecting pipe 113 is connected between the strip-shaped nozzle 110 and the water storage device. It should be noted that when the mold is completely immersed in the coolant, the strip-shaped nozzle 110 will be above the liquid level. The coolant sprayed by the strip-shaped nozzle 110 can increase the flow of the liquid. At the same time, the telescopic pipe 115 is squeezed downward by the top spring 119. The coolant inside the telescopic pipe 115 will continuously enter the vertical rod 116, maintaining a certain spraying time. When the mold moves upward, the strip-shaped nozzle 110 will also spray coolant towards the mold to improve the cooling efficiency.

[0030] The following provides a structure that can maintain spraying for a certain period of time to extend the contact time between the mold and the coolant: Refer to Figure 4 Specifically, the water storage device includes a support sleeve 114 and a telescopic pipe 115 located at the top of the support sleeve 114. When the coolant in the telescopic air pump 111 enters the telescopic pipe 115 through the first connecting pipe 112, a large amount of coolant cannot enter the vertical rod 116 in time. The telescopic pipe 115 stores the coolant by extending upward, and the top spring 119 is compressed. Subsequently, the coolant in the telescopic pipe 115 can enter the vertical rod 116 due to the downward pressure of the spring 119. The hollow vertical rod 116 is connected inside the support sleeve 114. The top of the telescopic pipe 115 is connected with a moving plate 117. The moving plate 117 is slidably connected to the outer wall of the vertical rod 116, and the moving plate 117 moves up and down along the outer wall of the vertical rod 116.

[0031] Specifically, refer to Figure 4 The bottom of the vertical rod 116 is provided with a water inlet hole. The first connecting pipe 112 is connected to the support sleeve 114. The coolant in the telescopic pipe 115 is transported to the strip-shaped nozzle 110 through the vertical rod 116 and the second connecting pipe 113. The telescopic air pump 111 is connected to the support sleeve 114 through a first communicating pipe.

[0032] Specifically, refer to Figure 4 The top of the vertical rod 116 is connected with a limiting plate 118, which plays a limiting role. A spring 119 is connected between the limiting plate 118 and the moving plate 117. The second connecting pipe 113 is connected to the top of the vertical rod 116.

[0033] Specifically, refer to Figure 4 The telescopic air pump 111 is internally connected with a spring 119 for driving and resetting. After the distance between the bottom wall of the water tank 106 and the lower mold 104 becomes smaller, the bottom of the lower mold 104 will exert a squeezing effect on the top of the telescopic air pump 111. The internal spring 119 improves the upward reset ability of the telescopic air pump 111. The telescopic air pump 111 is located at the bottom of the lower mold 104.

[0034] In this embodiment, referring to 1 to Figure 4 , the water tank 106 is located at the bottom of the lower mold 104. The water tank 106 is driven to move upward by the hydraulic rod 109, so as to cool the high-temperature die-cast workpiece and the mold. The specific process is as follows: the water tank 106 first moves upward to the preparatory position, the high-temperature workpiece is placed on the lower mold 104, and the upper mold 105 descends to cooperate with the lower mold 104 for high-temperature die-casting. Subsequently, the water tank 106 moves upward for the second time to immerse the mold and the workpiece in the coolant. After the cooling time reaches, the water tank 106 descends. At this time, the strip-shaped nozzle 110 will continuously spray the coolant to cool the mold. Finally, the upper mold 105 moves upward to facilitate the removal of the formed workpiece.

[0035] The above embodiments are only the preferred embodiments of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A self-positioning quenching hydraulic press, comprising a hydraulic press body (101), wherein support frames (102) are connected to both sides of the hydraulic press body (101), a first guide rod (103) is connected to the bottom of the hydraulic press body (101), a lower die (104) is connected to the bottom of the first guide rod (103), an upper die (105) is connected to the output end of the hydraulic press body (101), and the upper die (105) slides on the first guide rod (103), and is characterized in that: A water tank (106) is provided at the bottom of the lower mold (104). Slide sleeves (107) are symmetrically arranged on both sides of the water tank (106). Second guide frames (108) are connected to the bottom of both sides of the support frame (102). The slide sleeves (107) slide on the second guide frames (108). A hydraulic rod (109) is connected between the water tank (106) and the support frame (102). A spraying device is arranged in the water tank (106). The spraying device includes a strip-shaped nozzle (110), a water storage device, and a water supply device. The water supply device includes a telescopic air pump (111). A first connecting pipe (112) is connected between the bottom of the telescopic air pump (111) and the water storage device. One-way valves are connected to the bottom of the telescopic air pump (111) and the first connecting pipe (112). The strip-shaped nozzle (110) is located at the top of the inner wall of the water tank (106). A second connecting pipe (113) is connected between the strip-shaped nozzle (110) and the water storage device.

2. The self-positioning quenching hydraulic press according to claim 1, characterized in that: The water storage device includes a support sleeve (114) and a telescopic pipe (115) located at the top of the support sleeve (114). A hollow vertical rod (116) is connected inside the support sleeve (114). The top of the telescopic pipe (115) is connected to a moving plate (117). The moving plate (117) is slidably connected to the outer wall of the vertical rod (116) up and down.

3. The self-positioning quenching hydraulic press according to claim 2, wherein: An inlet hole is provided at the bottom of the vertical rod (116). The first connecting pipe (112) is connected to the support sleeve (114). The telescopic air pump (111) is connected to the support sleeve (114) through a first communicating pipe.

4. The self-positioning quenching hydraulic press according to claim 3, wherein: A limiting plate (118) is connected to the top of the vertical rod (116). A spring (119) is connected between the limiting plate (118) and the moving plate (117). The second connecting pipe (113) is connected to the top of the vertical rod (116).

5. The self-positioning quenching hydraulic press according to claim 4, wherein: A spring (119) for driving and resetting is connected inside the telescopic air pump (111). The telescopic air pump (111) is located at the bottom of the lower mold (104).

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