Electrohydraulic valve body casting mold

Abstract

The utility model relates to an electro-hydraulic valve body casting mold in the technical field of casting molds. A machining table used for limiting the first mold is installed at the lower end of the first mold, and a locking device used for being matched with the machining table to limit the second mold is installed at the right end of the second mold. A gap exists between the second mold and the machining table, a notch facilitating sand leakage is formed in the middle of the machining table, a collecting box is placed below a groove cavity of the notch, and after the second mold moves rightwards, sand in the first mold and the second mold can leak into the collecting box through the notch; through the arrangement of the locking device, the second mold can be quickly disassembled, the second mold can be conveniently replaced, when the second mold is disassembled, a screw rod is controlled to rotate through a rotary knob, so that a screw rod nut is matched with an insertion block III to move into a sliding groove, the insertion block III is moved out of a groove cavity of a locking groove at the same time, and then the second mold can be disassembled; and therefore, electro-hydraulic valve body molds with other sizes can be conveniently placed.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, and in particular to a casting mold for an electro-hydraulic valve body. Background Technology

[0002] An electro-hydraulic valve is a device that uses electrical signals to control a hydraulic system to open and close the valve and regulate the flow. Electro-hydraulic valves mainly consist of components such as valve body, valve core, spring, and electromagnet, and the valve body of a common electro-hydraulic valve is made by casting using a mold.

[0003] For example, Chinese patent application CN202020837103.4 discloses a special mold for casting valve bodies. Its specific content is as follows: during casting, molten metal is poured into the molding cavity through a casting hopper; the molten metal solidifies into a valve body; during mold separation, the end cap is removed; then, the handle is turned to the right, the connecting rod pulls the push rod to move, and the push rod pulls the second mold body to the right to achieve mold separation, so that the valve body can be removed. However, this method has the following technical problems:

[0004] When the valve body needs to be removed and the second mold body is moved to the right, the sand core inside the first and second mold bodies will spill onto the base and guide rails as the second mold body moves away from the first mold body. If the sand core that falls onto the guide rails is not cleaned up, it will affect the sliding effect of the slider on the guide rails. Therefore, the spilled sand cores need to be cleaned up before pouring can continue when the valve body is removed, which is a rather cumbersome operation. Utility Model Content

[0005] To address the problem mentioned in the background art that sand cores falling onto the guide rails can make it difficult for the second mold to move, this utility model provides the following technical solution:

[0006] An electro-hydraulic valve body casting mold includes a first mold and a second mold;

[0007] The lower end of the first mold is equipped with a processing table for limiting the position of the first mold, and the right end of the second mold is equipped with a locking device for limiting the position of the second mold in conjunction with the processing table.

[0008] The processing table has a groove in the middle to facilitate sand leakage. A collection box is placed below the groove cavity. A lead screw is installed on the upper right side of the processing table to cooperate with the locking device to control the second mold to move left and right.

[0009] Furthermore, a guide rail for guiding the first mold is installed on the upper left side of the processing table, a stop block for limiting the first mold is installed on the right end of the guide rail, a positioning groove is opened on the left side of the guide rail, and a magnetic block A is installed inside the guide rail.

[0010] Furthermore, a handwheel is installed at the right end of the lead screw, and a lead screw nut for moving left and right in conjunction with the lead screw control locking device is installed on the right side of the machining table.

[0011] Furthermore, a first insert is installed on the right end of the second mold, and a slot is provided in the middle of the first insert. Locking slots are provided at the upper and lower ends of the slot cavity.

[0012] Furthermore, the locking device includes a limiting box, the left side of which has an opening for inserting a first insert block, an mounting plate is installed in the middle of the slot of the opening, and the left middle of the mounting plate is fitted with a second insert block that is inserted into the slot.

[0013] Furthermore, the upper and lower ends of the second insert are provided with sliding grooves, and the third insert is installed in the sliding grooves to lock the second mold in conjunction with the locking groove. The right end of the third insert is provided with a lead screw nut, and the right end of the limit box is provided with a lead screw for controlling the two lead screw nuts to move in opposite directions. The upper end of the lead screw is provided with a knob.

[0014] Furthermore, a fixing block is installed on the left side of the first mold, a slider is installed at the lower end of the first mold, a pull rod is installed in the middle of the fixing block, an insert block four for cooperating with the positioning groove to limit the first mold is installed at the lower end of the pull rod, a magnetic block B for attracting magnetic block A is installed inside the insert block four, a spring is installed at the upper end of the insert block four, and a handle is installed at the upper end of the pull rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] There is a gap between the second mold and the processing table. The processing table has a slot in the middle to facilitate sand leakage. A collection box is placed below the slot cavity. After the second mold moves to the right, the sand inside the first and second molds will leak into the collection box through the slot. The second mold can be quickly disassembled by the locking device, which is convenient for replacing the second mold. When disassembling the second mold, the screw is rotated by the knob, so that the screw nut moves into the slide groove in conjunction with the insert block three. At the same time, the insert block three moves out of the locking groove cavity, so that the second mold can be disassembled to make room for other sizes of electro-hydraulic valve body molds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the second mold of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the processing table of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking device of this utility model;

[0021] Figure 5 This utility model Figure 1 Enlarged view of point A.

[0022] The following is a list of component names represented by the various reference numerals in the attached figures:

[0023] 10-First mold, 11-Slider, 12-Fixing block, 13-Insertion block four, 14-Magnetic block B, 15-Pull rod, 16-Handle, 17-Spring, 20-Second mold, 21-Insertion block one, 22-Slot, 23-Locking slot, 30-Collection box;

[0024] 100-Machining table, 110-Guide rail, 111-Positioning groove, 112-Stop block, 113-Magnetic block A, 120-Lead screw, 121-Handwheel, 130-Lead screw nut, 140-Slot opening;

[0025] 200-Locking device, 210-Limit box, 211-Socket, 220-Mounting plate, 221-Second insertion block, 222-Slide groove, 223-Third insertion block, 224-Screw nut, 230-Screw, 231-Knob. Detailed Implementation

[0026] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0027] Please see Figures 1-5 This utility model provides an electro-hydraulic valve body casting mold, including a first mold 10 and a second mold 20.

[0028] The lower end of the first mold 10 is equipped with a processing table 100 for limiting the first mold 10. The right end of the second mold 20 is equipped with a locking device 200 for cooperating with the processing table 100 to limit the second mold 20. When the first mold 10 and the second mold 20 are closed, the electro-hydraulic valve body can be poured. After cooling, the locking device 200 drives the second mold 20 to move to the right to facilitate the disassembly of the electro-hydraulic valve body.

[0029] A guide rail 110 for guiding the first mold 10 is fixedly installed on the upper left side of the processing table 100. A stop block 112 for limiting the first mold 10 is fixedly installed on the right end of the guide rail 110. The right end of the first mold 10 is blocked by the stop block 112, preventing it from moving to the right. A positioning groove 111 is provided on the left side of the guide rail 110. A magnetic block A113 is installed inside the guide rail 110.

[0030] There is a gap between the second mold 20 and the processing table 100. This gap serves two purposes: first, it facilitates the installation of the second mold 20 on the locking device 200; second, it prevents the second mold 20 from being difficult to move when sand splashes above the processing table 100. A slot 140 for sand leakage is provided in the middle of the processing table 100. A collection box 30 is placed below the cavity of the slot 140. When the second mold 20 moves to the right, the sand inside the first mold 10 and the second mold 20 will leak into the collection box 30 through the slot 140. A lead screw 120 is installed on the upper right side of the processing table 100 to control the left and right movement of the second mold 20 in conjunction with the locking device 200. A vertical plate is fixedly installed on the upper right side of the processing table 100 to limit the movement of the lead screw 120. A handwheel 121 is fixedly installed on the right end of the lead screw 120. A lead screw nut 130 is installed on the right side of the processing table 100 to cooperate with the lead screw 120 control locking device 200 to move left and right. When the handwheel 121 is rotated, the lead screw 120 can move left and right under the guidance of the lead screw nut 130.

[0031] Fixed blocks 12 are fixedly installed at the front and rear ends of the left side of the first mold 10. A slider 11 for limiting the first mold 10 in conjunction with the guide rail 110 is fixedly installed at the lower end of the first mold 10. A pull rod 15 is installed in the middle of the fixed block 12. An insert block 13 for limiting the first mold 10 in conjunction with the positioning groove 111 is fixedly installed at the lower end of the pull rod 15. A magnetic block B14 for attracting magnetic block A113 is installed inside the insert block 13. A spring 17 is installed at the upper end of the insert block 13 to push the insert block 13 into the cavity of the positioning groove 111. A handle 16 is installed at the upper end of the pull rod 15 to pull the pull rod 15 upward so that the insert block 13 can be moved out of the cavity of the positioning groove 111, and the first mold 10 can be quickly disassembled.

[0032] The right end of the second mold 20 is fixedly installed with a first insert 21. The middle part of the first insert 21 has a slot 22, and the upper and lower ends of the slot 22 have locking slots 23.

[0033] The locking device 200 includes a limiting box 210. The left side of the limiting box 210 has an insertion port 211 for inserting the first insertion block 21. An installation plate 220 is fixedly installed in the middle of the slot of the insertion port 211. The second insertion block 221 is fixedly installed in the middle of the left side of the installation plate 220 to limit the second mold 20.

[0034] The upper and lower ends of the second insert 221 are provided with sliding grooves 222. The third insert 223 is movably installed in the sliding grooves 222 to lock the second mold 20 in conjunction with the locking groove 23. The right end of the third insert 223 is fixedly installed with a lead screw nut 224. The right end of the limit box 210 is installed with a lead screw 230 for controlling the two lead screw nuts 224 to move in opposite directions. The upper end of the lead screw 230 is fixedly installed with a knob 231.

[0035] When disassembling the second mold 20, the screw 230 is rotated by the knob 231, so that the screw nut 224 moves into the slide groove 222 in conjunction with the insert block 223. At the same time, the insert block 223 moves out of the groove cavity of the locking groove 23, so that the second mold 20 can be disassembled to facilitate the placement of other sizes of electro-hydraulic valve body molds.

[0036] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A casting mold for an electro-hydraulic valve body, comprising a first mold (10) and a second mold (20), characterized in that: The lower end of the first mold (10) is equipped with a processing table (100) for limiting the first mold (10), and the right end of the second mold (20) is equipped with a locking device (200) for cooperating with the processing table (100) to limit the second mold (20). The processing table (100) has a groove (140) in the middle to facilitate sand leakage. A collection box (30) is placed below the groove (140). A lead screw (120) is installed on the upper right side of the processing table (100) to cooperate with the locking device (200) to control the second mold (20) to move left and right.

2. The electro-hydraulic valve body casting mold according to claim 1, characterized in that: A guide rail (110) for guiding the first mold (10) is installed on the upper left side of the processing table (100). A stop block (112) for limiting the first mold (10) is installed on the right end of the guide rail (110). A positioning groove (111) is opened on the left side of the guide rail (110). A magnetic block A (113) is installed inside the guide rail (110).

3. The electro-hydraulic valve body casting mold according to claim 1, characterized in that: A handwheel (121) is installed at the right end of the lead screw (120), and a lead screw nut (130) is installed on the right side of the processing table (100) for moving left and right in conjunction with the lead screw (120) control locking device (200).

4. The electro-hydraulic valve body casting mold according to claim 1, characterized in that: The second mold (20) has a first insert block (21) installed on the right end. The first insert block (21) has a slot (22) in the middle. The slot (22) has locking slots (23) at both the upper and lower ends of the slot cavity.

5. The electro-hydraulic valve body casting mold according to claim 4, characterized in that: The locking device (200) includes a limiting box (210), and the left side of the limiting box (210) is provided with a socket (211) for inserting the first insert (21). An installation plate (220) is installed in the middle of the slot of the socket (211), and the second insert (221) is installed in the middle of the left side of the installation plate (220).

6. The electro-hydraulic valve body casting mold according to claim 5, characterized in that: The upper and lower ends of the second insert (221) are provided with sliding grooves (222). The third insert (223) is installed in the sliding groove (222) to lock the second mold (20) in conjunction with the locking groove (23). The right end of the third insert (223) is provided with a lead screw nut (224). The right end of the limit box (210) is provided with a lead screw (230) for controlling the two lead screw nuts (224) to move in opposite directions. The upper end of the lead screw (230) is provided with a knob (231).

7. The electro-hydraulic valve body casting mold according to claim 2, characterized in that: A fixing block (12) is installed on the left side of the first mold (10), a slider (11) is installed at the lower end of the first mold (10), a pull rod (15) is installed in the middle of the fixing block (12), an insert block four (13) is installed at the lower end of the pull rod (15) for cooperating with the positioning groove (111) to limit the first mold (10), a magnetic block B (14) for attracting magnetic block A (113) is installed inside the insert block four (13), a spring (17) is installed at the upper end of the insert block four (13), and a handle (16) is installed at the upper end of the pull rod (15).

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