A die-casting machine mold air tightness detection device

Abstract

The present invention relates to the technical field of airtightness detection devices, and in particular to an airtightness detection device for a die casting machine, comprising: a base, a mounting frame, an arc block and a circular sealing block; a clamping block is slidably connected to the base; a clamping motor is fixedly connected to the base; a screw rod that is threadedly matched with the clamping block is fixedly connected to the output end of the clamping motor; a connecting rod is fixedly connected to the clamping block; the mounting frame is fixedly connected to the connecting rod; an arc groove is provided on the arc block; the output end of the telescopic electric push rod is fixedly connected to the telescopic block; the present invention detects the airtightness of the part of the mold parting surface that the circular sealing block contacts by partially contacting the mold on the parting surface, and then reduces the air pressure in the circular sealing block by evacuating air, thereby detecting the airtightness of the part on the mold parting surface that the circular sealing block contacts, and then moves the circular sealing block to detect the airtightness of the remaining part, until the airtightness of the entire mold parting surface is detected, so that the present invention completes the airtightness detection of the mold on the outside of the mold.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection devices, and in particular to an air tightness detection device for a die casting machine. Background Art

[0002] A die-casting machine is an industrial casting machine that hydraulically injects molten metal into a mold under pressure and cools it to form various castings. A die-casting machine is usually composed of a clamping mechanism, an injection mechanism, a hydraulic system, an electrical control system, etc.

[0003] The air tightness detection of die-casting machine molds is an important part of ensuring the quality of die-casting products and production efficiency. Molds with good air tightness can effectively prevent gas from entering the cavity, thereby reducing defects such as pores and looseness in die-casting products and improving the mechanical properties and surface quality of products.

[0004] In the prior art, a detection device is usually installed inside the mold to detect the air tightness of the mold by detecting the internal pressure of the mold in real time. However, setting up a detection device inside the mold may affect the normal scaling and flow channel of the mold, affecting the die-casting process, and detection inside the mold requires major changes to the entire mold, or customization of special detection components, which increases costs and creates limitations.

[0005] To this end, we propose a die air tightness detection device for a die casting machine. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an air tightness detection device for a die casting machine, which overcomes the deficiencies in the prior art and aims to solve the problems in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a die-casting machine mold air tightness detection device, comprising: a base, a mounting frame, an arc block and a round-shaped sealing block;

[0008] A clamping block is slidably connected to the base; a clamping motor is fixedly connected to the base; a screw rod which is threadedly matched with the clamping block is fixedly connected to the output end of the clamping motor; a connecting rod is fixedly connected to the clamping block; the mounting frame is fixedly connected to the connecting rod; the arc block is installed on the mounting frame; an arc groove is provided on the arc block; mounting blocks are evenly installed in the arc groove; a telescopic electric push rod is fixedly connected to the mounting block; the output end of the telescopic electric push rod is fixedly connected to the telescopic block; the round-shaped sealing block is installed on the telescopic block; an air pressure sensor is fixedly connected in the round-shaped sealing block, and an electromagnetic valve is fixedly connected to the round-shaped sealing block; a connecting pipe is connected to the electromagnetic valve; an air pump is fixedly connected to the base; the output end of the air pump is connected to the connecting pipe.

[0009] Preferably, the mounting block is slidably connected in the arc groove, an extrusion rod is rotatably connected to the arc block; an arc extrusion block is slidably connected to the arc block; and the extrusion rod and the arc extrusion block are threadedly matched.

[0010] Preferably, the arc block is slidably connected to the mounting frame; the two arc blocks can be assembled into a circular ring; an arc rack is fixedly connected to the arc block; a mobile motor is fixedly connected to the mounting frame; and a gear meshing with the arc rack is fixedly connected to the output end of the mobile motor.

[0011] The circular sealing block is brought into partial contact with the mold on the parting surface, and then the air pressure in the circular sealing block is reduced by vacuuming, so as to detect the airtightness of the part on the mold parting surface where the circular sealing block contacts. Then, the circular sealing block is moved again to detect the airtightness of the remaining part, until the airtightness of the entire mold parting surface is detected. Thus, the present invention completes the airtightness test of the mold on the outside of the mold.

[0012] Preferably, the telescopic block is T-shaped, and a transverse movement groove is provided on the telescopic block; a transverse movement block is slidably connected in the transverse movement groove, and a transverse motor is fixedly connected to the transverse movement block; and a screw rod that cooperates with the thread of the transverse movement block is fixedly connected to the output end of the transverse motor.

[0013] Preferably, a connecting block is slidably connected to the transverse moving block; the connecting block is fixed to the transverse moving block by bolts; and the circular sealing block is fixedly connected to the connecting block.

[0014] Preferably, the connecting block is symmetrically fixed with an adjusting electric push rod; connecting grooves are provided on both sides of the circular sealing block; the output end of the adjusting electric push rod is fixedly connected to the bottom of the connecting groove; and an opening is provided at one end of the circular sealing block away from the telescopic block.

[0015] Preferably, arc-shaped metal strips are fixedly connected to two sides of the circular sealing block; and the two arc-shaped metal strips are bent in directions away from each other.

[0016] By moving the sideways moving block with the circular sealing block to move sideways and adjusting the sideways position of the circular sealing block, the present invention can perform air tightness detection on molds with parting surfaces of different shapes, thereby improving the application scope of the present invention. At the same time, two adjusting electric push rods pull the two sides of the opening of the circular sealing block, so that the two sides of the opening of the circular sealing block are staggered, corresponding to the staggered two sides of the mold parting surface, so that the present invention can fit the mold when errors occur in mold closing.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention detects the air tightness of the part of the mold parting surface where the circular sealing block contacts the mold partially on the parting surface, and then evacuates air to reduce the air pressure in the circular sealing block, and then moves the circular sealing block to detect the air tightness of the remaining part, until the air tightness of the entire mold parting surface is detected, thereby completing the air tightness test of the mold on the outside of the mold.

[0019] 2. The present invention moves the round-shaped sealing block laterally by the lateral moving block, and adjusts the lateral position of the round-shaped sealing block, so that the present invention can perform airtightness detection on molds with parting surfaces of different shapes, thereby improving the scope of use of the present invention. At the same time, two adjusting electric push rods pull the two sides of the opening of the round-shaped sealing block, so that the two sides of the opening of the round-shaped sealing block are staggered, corresponding to the staggered two sides of the mold parting surface, so that the present invention can fit the mold when errors occur in mold closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0023] Figure 4 It is a cross-sectional view of the mounting frame, the arc block, the mounting block, the telescopic block and the circular sealing block in the present invention;

[0024] Figure 5 for Figure 3 Cross-sectional view of the circular sealing block and the connecting block from the cross-sectional perspective at CC.

[0025] In the figure: 1. base; 11. clamping block; 12. clamping motor; 13. connecting rod; 2. mounting frame; 21. arc block; 22. round sealing block; 23. arc groove; 24. mounting block; 25. telescopic electric push rod; 26. telescopic block; 27. air pressure sensor; 28. solenoid valve; 29. ​​connecting pipe; 3. vacuum pump; 4. extrusion rod; 41. arc extrusion block; 5. arc rack; 51. moving motor; 6. transverse moving groove; 61. transverse moving block; 62. transverse motor; 63. connecting block; 64. adjusting electric push rod; 65. connecting groove; 66. opening; 67. arc metal strip. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: Refer to the attached specification Figure 1 , 2 , 3 and 4, a die-casting machine mold air tightness detection device, comprising: a base 1, a mounting frame 2, an arc block 21 and a circular sealing block 22;

[0028] A clamping block 11 is slidably connected to the base 1; a clamping motor 12 is fixedly connected to the base 1; a screw rod threadedly matched with the clamping block 11 is fixedly connected to the output end of the clamping motor 12; a connecting rod 13 is fixedly connected to the clamping block 11; the mounting frame 2 is fixedly connected to the connecting rod 13; an arc block 21 is mounted on the mounting frame 2; an arc groove 23 is provided on the arc block 21; mounting blocks 24 are evenly installed in the arc groove 23; a telescopic electric push rod 25 is fixedly connected to the mounting block 24; a telescopic block 26 is fixedly connected to the output end of the telescopic electric push rod 25; a round-shaped sealing block 22 is mounted on the telescopic block 26; an air pressure sensor 27 is fixedly connected in the round-shaped sealing block 22, and an electromagnetic valve 28 is fixedly connected to the round-shaped sealing block 22; a connecting pipe 29 is connected to the electromagnetic valve 28; an air pump 3 is fixedly connected to the base 1; the output end of the air pump 3 is connected to the connecting pipe 29.

[0029] In the present invention, the mounting block 24 is slidably connected in the arc groove 23 , the arc block 21 is rotatably connected with the extrusion rod 4 ; the arc block 21 is slidably connected with the arc extrusion block 41 ; the extrusion rod 4 and the arc extrusion block 41 are threadedly matched.

[0030] In the present invention, the arc block 21 is slidably connected to the mounting frame 2; the two arc blocks 21 can be assembled into a circular ring; the arc block 21 is fixedly connected with an arc rack 5; the mounting frame 2 is fixedly connected with a moving motor 51; the output end of the moving motor 51 is fixedly connected with a gear meshing with the arc rack 5.

[0031] In the present invention, after the die casting machine mold is closed, the clamping motor 12 rotates, so that the clamping block 11 drives the connecting rod 13, the mounting frame 2, the arc block 21 and the round-shaped sealing block 22 to move, so that the two mounting frames 2 and the arc block 21 are closed, and then the telescopic electric push rod 25 pushes the telescopic block 26 to move, so that the round-shaped sealing block 22 contacts the die of the die casting machine, and the round-shaped sealing block 22 is located on the parting surface of the mold. Under the action of the telescopic electric push rod 25, the round-shaped sealing block 22 is in close contact with the mold, and then the vacuum pump 3 exhausts air, so that the air pressure in the round-shaped sealing block 22 is reduced, and then the solenoid valve 28 closes the connecting pipe 29, so that the negative pressure in the round-shaped sealing block 22 is maintained, and the air pressure sensor 27 The air pressure in the circular sealing block 22 is detected in real time. When the air tightness of the die casting machine mold is insufficient after the mold is closed, the air in the mold will enter the circular sealing block 22 from the parting surface, causing the air pressure in the circular sealing block 22 to rise. Since the part where the circular sealing block 22 contacts the mold is not part of the entire parting surface, after air is introduced into the circular sealing block 22, the circular sealing block 22 is moved to return to its original position. Then, the moving motor 51 drives the arc block 21 and the circular sealing block 22 to rotate through the gear and the arc rack 5, thereby changing the position of the circular sealing block 22, and performing air tightness detection on the remaining part of the mold parting surface until the air tightness detection on the entire parting surface of the mold is completed.

[0032] In the present invention, after the squeezing rod 4 is loosened, the arc-shaped squeezing block 41 no longer squeezes the mounting block 24, and the mounting block 24 can be slid in the arc-shaped groove 23, thereby adjusting the positions of the mounting block 24 and the round block, and the mounting block 24 can be slid into and out of the arc-shaped groove 23, thereby increasing the number of mounting blocks 24 and reducing the number of mounting blocks 24;

[0033] The present invention detects the air tightness of the portion of the mold parting surface where the circular sealing block 22 contacts the mold partially on the parting surface, and then evacuates air to reduce the air pressure in the circular sealing block 22, and then moves the circular sealing block 22 to detect the air tightness of the remaining portion, until the air tightness of the entire mold parting surface is detected, thereby completing the air tightness test of the mold on the outside of the mold.

[0034] Embodiment 2: Based on Embodiment 1, in the present invention, the telescopic block 26 is T-shaped, and a transverse moving groove 6 is provided on the telescopic block 26; a transverse moving block 61 is slidably connected in the transverse moving groove 6, and a transverse motor 62 is fixedly connected to the transverse moving block 61; the output end of the transverse motor 62 is fixedly connected to a screw rod that is threadedly matched with the transverse moving block 61.

[0035] In the present invention, a connecting block 63 is slidably connected to the lateral moving block 61 ; the connecting block 63 is fixed to the lateral moving block 61 by bolts; and the round-shaped sealing block 22 is fixedly connected to the connecting block 63 .

[0036] In the present invention, an adjustment electric push rod 64 is symmetrically fixed to the connection block 63; connection grooves 65 are provided on both sides of the circular sealing block 22; the output end of the adjustment electric push rod 64 is fixed to the bottom of the connection groove 65; and an opening 66 is provided at one end of the circular sealing block 22 away from the telescopic block 26.

[0037] Refer to the instruction manual Figure 5 In the present invention, arc-shaped metal strips 67 are fixedly connected to both sides of the round-shaped sealing block 22; the two arc-shaped metal strips 67 are bent in directions away from each other.

[0038] When the parting surface of the mold is stepped, the lateral moving block 61 is driven to move by the lateral motor 62, thereby adjusting the lateral position of the round-shaped sealing block 22, so that the position of the round-shaped sealing block 22 corresponds to the stepped parting surface, so that the present invention can perform airtightness detection on molds with parting surfaces of different shapes, thereby improving the application scope of the present invention;

[0039] In the present invention, when the upper and lower positions of the two sides of the mold parting surface are staggered after the mold is closed, the electric push rod 64 is adjusted to pull the two sides of the opening 66 of the round-shaped sealing block 22, so that the two sides of the opening 66 are staggered up and down to correspond to the mold, so that after the round-shaped sealing block 22 contacts the mold, it fits with the mold, so that the two sides of the mold parting surface are not staggered up and down, and a gap is not formed between the round-shaped sealing block 22 and the mold, thereby improving the use effect of the present invention;

[0040] In the present invention, when the electric push rod 64 is adjusted to pull the round-shaped sealing block 22, the arc-shaped metal strip 67 is squeezed, and then the two arc-shaped metal strips 67 squeeze the two sides of the opening 66 of the round-shaped sealing block 22 in a direction close to each other, so that the opening 66 is closed, which will not affect the use effect of the present invention;

[0041] The present invention moves the circular sealing block 22 laterally by the lateral moving block 61, and adjusts the lateral position of the circular sealing block 22, so that the present invention can perform airtightness detection on molds with parting surfaces of different shapes, thereby improving the scope of use of the present invention. At the same time, two adjustment electric push rods 64 pull the two sides of the opening 66 of the circular sealing block 22, so that the two sides of the opening 66 of the circular sealing block 22 are staggered, corresponding to the staggered two sides of the mold parting surface, so that the present invention can fit the mold when errors occur in mold closing.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected; the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A die-casting machine mold air tightness detection device, characterized in that: include: A base (1), a mounting frame (2), an arc block (21) and a circular sealing block (22); A clamping block (11) is slidably connected to the base (1); a clamping motor (12) is fixedly connected to the base (1); a screw rod that is threadedly matched with the clamping block (11) is fixedly connected to the output end of the clamping motor (12); a connecting rod (13) is fixedly connected to the clamping block (11); the mounting frame (2) is fixedly connected to the connecting rod (13); the arc block (21) is mounted on the mounting frame (2); an arc groove (23) is formed on the arc block (21); mounting blocks (24) are evenly spaced and mounted in the arc groove (23); The mounting block (24) is fixedly connected to a telescopic electric push rod (25); the output end of the telescopic electric push rod (25) is fixedly connected to a telescopic block (26); the round-shaped sealing block (22) is mounted on the telescopic block (26); an air pressure sensor (27) is fixedly connected inside the round-shaped sealing block (22); a solenoid valve (28) is fixedly connected to the round-shaped sealing block (22); a connecting pipe (29) is connected to the solenoid valve (28); an air pump (3) is fixedly connected to the base (1); the output end of the air pump (3) is connected to the connecting pipe (29); The mounting block (24) is slidably connected in the arc groove (23); an extrusion rod (4) is rotatably connected to the arc block (21); an arc extrusion block (41) is slidably connected to the arc block (21); the extrusion rod (4) and the arc extrusion block (41) are threadedly engaged; The arc block (21) is slidably connected to the mounting frame (2); the two arc blocks (21) can be assembled into a circular ring; an arc rack (5) is fixedly connected to the arc block (21); a mobile motor (51) is fixedly connected to the mounting frame (2); and a gear meshing with the arc rack (5) is fixedly connected to the output end of the mobile motor (51).

2. The die-casting machine mold air tightness detection device according to claim 1, characterized in that: The telescopic block (26) is T-shaped, and a transverse movement groove (6) is provided on the telescopic block (26); a transverse movement block (61) is slidably connected in the transverse movement groove (6), and a transverse motor (62) is fixedly connected to the transverse movement block (61); and a screw rod threadedly matched with the transverse movement block (61) is fixedly connected to the output end of the transverse motor (62).

3. The die-casting machine mold air tightness detection device according to claim 2, characterized in that: A connecting block (63) is slidably connected to the transverse moving block (61); the connecting block (63) is fixed to the transverse moving block (61) by means of bolts; and the circular sealing block (22) is fixedly connected to the connecting block (63).

4. The die-casting machine mold air tightness detection device according to claim 3, characterized in that: The connecting block (63) is symmetrically fixedly connected with an adjusting electric push rod (64); connecting grooves (65) are provided on both sides of the circular sealing block (22); the output end of the adjusting electric push rod (64) is fixedly connected to the bottom of the connecting groove (65); and an opening (66) is provided at one end of the circular sealing block (22) away from the telescopic block (26).

5. The die-casting machine mold air tightness detection device according to claim 4, characterized in that: Arc-shaped metal strips (67) are fixedly connected to two sides of the circular sealing block (22); the two arc-shaped metal strips (67) are bent in directions away from each other.

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