Die-casting mold leakproofness testing device

Abstract

The utility model relates to the technical field of die-casting mould testing, and discloses a die-casting mould leakproofness testing device which comprises a movable plate, a fixed frame fixedly connected to the top of the movable plate, a sealing mechanism arranged on the inner wall of the fixed frame, a supporting table fixedly connected to the bottom of the inner wall of the fixed frame, and a lower die-casting mould arranged on the top of the supporting table. The top of the sealing mechanism is provided with a nitrogen detector, the testing mechanism comprises a connecting shaft, the connecting shaft is arranged at the top of the sealing mechanism, the top end of the connecting shaft is fixedly connected with a fixed box, and the bottom of the inner wall of the fixed box is rotationally connected with a threaded rod; the outer wall of the threaded rod is in threaded connection with a pressing block. According to the sealing performance testing device for the die-casting mold, through the arranged testing mechanism, nitrogen in the sealing frame can be detected through the nitrogen detector, the purpose of testing the sealing performance is achieved, then the sealing reinforcing function is achieved, good stability is achieved in the detection process, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting mold testing, in particular to a die casting mold airtightness testing device. Background Art

[0002] A die-casting mold is a metal mold used to form castings in the die-casting process. Its main function is to quickly fill liquid or semi-liquid metal into the mold cavity under high pressure and quickly solidify it under pressure to obtain a casting of the desired shape.

[0003] With the development of science and technology, die-casting molds are gradually being used in many fields. Common die-casting molds need to be tested for their tightness during long-term use to ensure that the die-casting can work better, but the common tightness. Utility Model Content

[0004] The purpose of the present utility model is to provide a device for testing the tightness of a die-casting mold to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a die-casting mold airtightness testing device, comprising a movable plate, a fixed frame fixedly connected to the top of the movable plate, a sealing mechanism provided on the inner wall of the fixed frame, a support platform fixedly connected to the bottom of the inner wall of the fixed frame, a lower die-casting mold provided on the top of the support platform, an upper die-casting mold provided on the top of the lower die-casting mold, a testing mechanism provided on the top of the sealing mechanism, and a nitrogen detector provided on the back of the sealing mechanism;

[0006] The testing mechanism includes a connecting shaft, which is arranged at the top of the sealing mechanism, and the top of the connecting shaft is fixedly connected to a fixing box, the bottom of the inner wall of the fixing box is rotatably connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a clamping block, the outer wall of the connecting shaft is fixedly connected to an external spline, the outer ring of the external spline is engaged with an internal spline, the outer wall of the internal spline is fixedly connected to a connecting frame, the outer side of the connecting frame is fixedly connected to a connecting plate, a T-shaped block is provided at the top of the sealing mechanism, and a gas delivery pipeline is provided at the bottom of the clamping block.

[0007] Preferably, the threaded rod passes through the top of the fixed box and rotates, and a torsion sleeve is fixedly connected to the top of the threaded rod to facilitate the threaded rod to rotate through the torsion sleeve.

[0008] Preferably, the outer shape of the pressing block matches the shape of the inner wall of the fixed box, and the pressing block is slidably connected to the inner wall of the fixed box, so that the pressing block can move stably.

[0009] Preferably, the gas delivery pipeline is movably connected to the top of the upper die casting mold, and the inner wall of the gas delivery pipeline is connected with the inside of the upper die casting mold, so that the gas can be discharged into the inside of the upper die casting mold.

[0010] Preferably, the connecting plate is slidably connected to the outside of the T-shaped block, so that the connecting plate can be stably positioned and moved.

[0011] Preferably, the sealing mechanism comprises a telescopic rod, the telescopic rod is fixedly connected to the inner wall of the fixed frame, one end of the telescopic rod away from the inner wall of the fixed frame is fixedly connected with a sealing frame, the top of the sealing frame is fixedly connected with a protruding block, the top of the inner wall of the fixed frame is fixedly connected with a fixed groove, and a good sealing environment is achieved.

[0012] Preferably, the protruding block is slidably connected to the inner wall of the fixed groove, and the nitrogen detector is fixedly connected to the back of the sealing frame, so that the sealing frame can be stably moved.

[0013] Preferably, the sealing frame is provided with two, and the two sealing frames are in contact with each other, so that the sealing frame can be stably sealed.

[0014] Preferably, the sealing frame is provided with two, and the two sealing frames are in contact with each other, so that the sealing frame can be stably sealed.

[0015] Compared with the prior art, the utility model provides a die casting mold airtightness test device has the following beneficial effects:

[0016] 1、 the die casting mold airtightness test device, through setting up the testing mechanism, through the nitrogen detector can detect the inside nitrogen of the sealing frame, realizes the purpose of the sealing test, and then realizes the function of reinforcing the sealing, reaches good stability in the process of detecting, improves the practicality of the device.

[0017] 2、 the die casting mold airtightness test device, through setting up the sealing mechanism, so that two sealing frames can be in contact with each other, and the inside of the sealing frame is sealed, so that a good detection environment can be achieved, and the accuracy of the test data is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor:

[0019] Figure 1 It is the structure front view of the utility model.

[0020] Figure 2 It is a front cross-sectional view of the sealing frame;

[0021] Figure 3 This is the rear view of the structure of the utility model;

[0022] Figure 4 It is a structural diagram of the sealing frame;

[0023] Figure 5 This is a partial structural diagram of the testing organization;

[0024] Figure 6 This is a structural diagram of the gas transmission pipeline.

[0025] In the figure: 1. Moving plate; 2. Fixed frame; 3. Testing mechanism; 31. Connecting shaft; 32. Fixed box; 33. Threaded rod; 34. Pressing block; 35. External spline; 36. Internal spline; 37. Connecting frame; 38. Connecting plate; 39. T-block; 301. Gas delivery pipeline; 4. Sealing mechanism; 41. Telescopic rod; 42. Sealing frame; 43. Bump; 44. Fixing groove; 5. Nitrogen detector; 6. Lower pressure casting mold; 7. Upper pressure casting mold; 8. Support table. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] The utility model provides the following technical solutions:

[0029] Example 1

[0030] Combine Figures 1 to 6A die-casting mold tightness testing device includes a movable plate 1, a fixed frame 2 is fixedly connected to the top of the movable plate 1, a sealing mechanism 4 is provided on the inner wall of the fixed frame 2, a support platform 8 is fixedly connected to the bottom of the inner wall of the fixed frame 2, a lower die 6 is provided on the top of the support platform 8, an upper die 7 is provided on the top of the lower die 6, a testing mechanism 3 is provided on the top of the sealing mechanism 4, and a nitrogen detector 5 is provided on the back of the sealing mechanism 4;

[0031] The testing mechanism 3 includes a connecting shaft 31, which is arranged at the top of the sealing mechanism 4. The top of the connecting shaft 31 is fixedly connected to a fixed box 32. The bottom of the inner wall of the fixed box 32 is rotatably connected to a threaded rod 33. The outer wall of the threaded rod 33 is threadedly connected to a clamping block 34. The outer wall of the connecting shaft 31 is fixedly connected to an external spline 35. The outer ring of the external spline 35 is engaged with an internal spline 36. The outer wall of the internal spline 36 is fixedly connected to a connecting frame 37. The outer side of the connecting frame 37 is fixedly connected to a connecting plate 38. A T-shaped block 39 is provided at the top of the sealing mechanism 4, and a gas delivery pipeline 301 is provided at the bottom of the clamping block 34.

[0032] Furthermore, the threaded rod 33 passes through the top of the fixed box 32 and rotates. A torsion sleeve is fixedly connected to the top of the threaded rod 33 to facilitate the rotation of the threaded rod 33 through the torsion sleeve.

[0033] Furthermore, the outer shape of the pressing block 34 matches the shape of the inner wall of the fixing box 32 , and the pressing block 34 is slidably connected to the inner wall of the fixing box 32 , so that the pressing block 34 can move stably.

[0034] Furthermore, the gas delivery pipe 301 is movably connected to the top of the upper die casting mold 7 , and the inner wall of the gas delivery pipe 301 is connected to the interior of the upper die casting mold 7 , so that the gas can be discharged into the interior of the upper die casting mold 7 .

[0035] Furthermore, a sliding opening is provided inside the connecting plate 38 , and the connecting plate 38 is slidably connected to the outside of the T-shaped block 39 , so that the connecting plate 38 can move stably and in a limited manner.

[0036] Example 2

[0037] See Figures 1 to 6 On the basis of Example 1, the sealing mechanism 4 further includes a telescopic rod 41, the telescopic rod 41 is fixedly connected to the inner wall of the fixed frame 2, the end of the telescopic rod 41 away from the inner wall of the fixed frame 2 is fixedly connected to a sealing frame 42, the top of the sealing frame 42 is fixedly connected to a protrusion 43, and the top of the inner wall of the fixed frame 2 is fixedly connected to a fixing groove 44, thereby achieving a good sealing environment.

[0038] Furthermore, the protrusion 43 is slidably connected to the inner wall of the fixing groove 44, and the nitrogen detector 5 is fixedly connected to the back of the sealing frame 42, so that the sealing frame 42 can move stably.

[0039] Further, the sealing frame 42 is provided with two, two sealing frame 42 mutual contact, so that the sealing frame 42 can be stable sealing.

[0040] Further, the sealing frame 42 inside is provided with a semicircular mouth, gas pipeline 301 through the opening of the semicircular mouth and move, so that the gas pipeline 301 can be stable to the gas delivery.

[0041] In actual operation, when the device is used, first of all, the need to detect the lower die 6 and the upper die 7 are placed in turn on the top of the support table 8, then the telescopic rod 41 can be started to work, so that the telescopic rod 41 can push the sealing frame 42 to move, while the sealing frame 42 can drive the lug 43 to slide in the inner wall of the fixed groove 44, so that the two sealing frame 42 can be mutually attached, and the sealing frame 42 inside can be sealed, so as to achieve a good test environment, further ensure the accuracy of test data.

[0042] Before testing, the gas pipeline 301 is connected with the nitrogen source, then the gas pipeline 301 can be inserted into the inside of the feed port on the top of the upper die 7, which can achieve good sealing performance, then push the connecting frame 37 upwards, so that the connecting frame 37 can drive the inner spline 36 not to engage with the outer spline 35, at this time, the fixed box 32 can be rotated along the axis of the connecting shaft 31 to make circular motion, so that the bottom of the compression block 34 can be aligned with the top of the gas pipeline 301, then twist the sleeve to drive the threaded rod 33 to rotate, because the threaded rod 33 and the compression block 34 are screwed, so the rotation of the threaded rod 33 will be converted into the linear motion of the compression block 34, the compression block 34 can compress the gas pipeline 301, at this time, nitrogen is injected into the inside of the gas pipeline 301, when the lower die 6 and the upper die 7 leak, the nitrogen detector 5 can detect the nitrogen inside the sealing frame 42, realize the purpose of sealing test, and realize the function of reinforcing sealing, which can achieve good stability in the process of detection, and improve the practicability of the device.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A die-casting mold tightness testing device, comprising a movable plate (1), characterized in that: The top of the movable plate (1) is fixedly connected to a fixed frame (2), the inner wall of the fixed frame (2) is provided with a sealing mechanism (4), the bottom of the inner wall of the fixed frame (2) is fixedly connected to a support platform (8), the top of the support platform (8) is provided with a lower pressure casting mold (6), the top of the lower pressure casting mold (6) is provided with an upper pressure casting mold (7), the top of the sealing mechanism (4) is provided with a testing mechanism (3), and the back of the sealing mechanism (4) is provided with a nitrogen detector (5); The testing mechanism (3) comprises a connecting shaft (31), the connecting shaft (31) being arranged at the top of the sealing mechanism (4), the top of the connecting shaft (31) being fixedly connected to a fixing box (32), the bottom of the inner wall of the fixing box (32) being rotatably connected to a threaded rod (33), the outer wall of the threaded rod (33) being threadedly connected to a pressing block (34), the outer wall of the connecting shaft (31) being fixedly connected to an external spline (35), the outer ring of the external spline (35) being engaged with an internal spline (36), the outer wall of the internal spline (36) being fixedly connected to a connecting frame (37), the outer side of the connecting frame (37) being fixedly connected to a connecting plate (38), the top of the sealing mechanism (4) being provided with a T-shaped block (39), and the bottom of the pressing block (34) being provided with a gas delivery pipeline (301).

2. The die-casting mold tightness testing device according to claim 1, characterized in that: The threaded rod (33) passes through the top of the fixed box (32) and rotates, and the top end of the threaded rod (33) is fixedly connected to a torsion sleeve.

3. The die-casting mold tightness testing device according to claim 1, characterized in that: The outer shape of the pressing block (34) matches the shape of the inner wall of the fixed box (32), and the pressing block (34) is slidably connected to the inner wall of the fixed box (32).

4. The die-casting mold tightness testing device according to claim 1, characterized in that: The gas delivery pipe (301) is movably connected to the top of the upper die casting mold (7), and the inner wall of the gas delivery pipe (301) is connected to the interior of the upper die casting mold (7).

5. The die-casting mold tightness testing device according to claim 1, characterized in that: A sliding opening is provided inside the connecting plate (38), and the connecting plate (38) is slidably connected to the outside of the T-shaped block (39).

6. The die-casting mold tightness testing device according to claim 1, characterized in that: The sealing mechanism (4) comprises a telescopic rod (41), the telescopic rod (41) being fixedly connected to the inner wall of the fixed frame (2), the end of the telescopic rod (41) away from the inner wall of the fixed frame (2) being fixedly connected to a sealing frame (42), the top of the sealing frame (42) being fixedly connected to a protrusion (43), and the top of the inner wall of the fixed frame (2) being fixedly connected to a fixing groove (44).

7. The die-casting mold tightness testing device according to claim 6, characterized in that: The protrusion (43) is slidably connected to the inner wall of the fixing groove (44), and the nitrogen detector (5) is fixedly connected to the back of the sealing frame (42).

8. The die-casting mold tightness testing device according to claim 6, characterized in that: Two sealing frames (42) are provided, and the two sealing frames (42) are in contact with each other.

9. The die-casting mold tightness testing device according to claim 6, characterized in that: A semicircular opening is provided on the inner side of the sealing frame (42), and the gas delivery pipe (301) passes through the semicircular opening and moves.

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