Die casting device for metal parts of new energy automobile

Abstract

The invention discloses a die-casting device for metal parts of a new energy automobile, and relates to the technical field of die-casting of the new energy automobile, the die-casting device comprises a die-casting machine, a fixed die and a movable die are arranged on the die-casting machine, a plurality of die locking assemblies are arranged on the fixed die and the movable die in a rectangular array, and each die locking assembly comprises a first guide rod; the first guide rod is fixedly connected to the outer wall of the fixed mold, an inclined surface block is slidably connected to the first guide rod, and the first guide rod is sleeved with a first spring; new energy automobile metal parts generally have strict dimensional precision requirements, and once the problem of height difference or untight fitting is found, a signal is transmitted to the die-casting machine in time, so that the die-casting machine pauses or adjusts the die assembly action, and the die assembly efficiency can be ensured when the fixed die and the movable die are assembled. The situation that a gap exists due to dislocation and insufficient mold closing force between the fixed mold and the movable mold is avoided, close matching of mold closing of the fixed mold and the movable mold is guaranteed, part size deviation caused by mold problems is avoided, it is guaranteed that the sizes of produced parts are accurate, and the high-precision assembly requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting for new energy vehicles, and specifically to a die-casting device for metal spare parts of new energy vehicles. Background Art

[0002] When a die-casting machine die-casts metal spare parts of new energy vehicles, the die of the die-casting machine will be subjected to great pressure and vibration. After long-term use, it is easy to loosen and deform, resulting in inability to fit tightly during mold closing, resulting in misalignment or gaps. At the same time, during the production process of the die, there is a situation where the temperature inside the die is uneven, resulting in inconsistent thermal expansion of each part of the die, which may cause changes in the fitting gap between the moving die and the fixed die, and cause die misalignment or gaps after mold closing in the subsequent production process.

[0003] To solve the problem of die misalignment during the operation of the die-casting machine, existing methods usually use clamping structures such as toggle type and full hydraulic direct pressure type to solve the problem. However, after the die and other mechanical components of the die-casting machine have been under high pressure and vibration for a long time, they will deform by themselves. Even though the clamping structure can provide a certain clamping force, it is difficult to achieve precise real-time compensation for the deformation of the die caused by various complex factors. At the same time, in the high-speed and high-pressure working environment of the die-casting machine, the clamping structure will also be worn. When the wear reaches a certain level, the clamping structure is also difficult to ensure the tight fit between the moving die and the fixed die, and the die will still show misalignment or gaps during mold closing.

[0004] The misalignment or gaps at the mold closing position will cause the molten metal to overflow during the die-casting process, forming flash and burrs, which will affect the appearance quality of the metal spare parts of new energy vehicles. At the same time, the misalignment of the die will change the size and shape of the cavity, making the size of the die-cast metal spare parts of new energy vehicles not meet the design requirements, affecting the assembly accuracy of the metal spare parts of new energy vehicles, and resulting in inability to accurately cooperate with other components.

[0005] At the same time, during the die-casting process of the metal spare parts of new energy vehicles, the molten metal is injected into the die cavity at a high pressure and high speed. During this process, the molten metal generates a huge impact force and pressure on the die. The pressure will cause a separation tendency between the moving die and the fixed die of the die, and the die-casting machine will generate vibration during operation. Long-term vibration will gradually loosen the fixing components of the die. If the clamping force is insufficient or unevenly distributed, it is easy to cause the die to displace.

[0006] Therefore, a die-casting device for metal spare parts of new energy vehicles is proposed. Summary of the Invention

[0007] The purpose of the present invention is to provide a die-casting device for metal spare parts of new energy vehicles to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: A die-casting device for metal spare parts of new energy vehicles, including a die-casting machine, on which a fixed die and a moving die are provided. A plurality of mold clamping components are jointly arranged in a rectangular array on the fixed die and the moving die. The mold clamping component includes a first guide rod, the first guide rod is fixedly connected to the outer wall of the fixed die, a bevel block is slidably connected to the first guide rod, a first spring is sleeved on the first guide rod, a screw rod is threadedly connected to the bevel block, a second guide rod is slidably connected to the bevel block, the bottom end of the screw rod is rotatably connected to a bracket, the bracket is fixedly connected to the bottom of the second guide rod, a gear is rotatably connected to the bottom of the bracket, two rack plates are symmetrically slidably connected to the bottom of the bracket, a lever is fixedly connected to the gear, an extension plate is fixedly connected to the bottom of the bracket, a third guide rod is slidably connected to the extension plate, a triangular block is fixedly connected to the bottom end of the third guide rod, and a second spring is sleeved on the third guide rod.

[0009] Further, a U-shaped plate is fixedly connected to one side of the bracket close to the lever. Two first electrical contacts are symmetrically installed on the inner side wall of the U-shaped plate, and a second electrical contact is installed at the bottom of the outer side wall of the U-shaped plate. An inclined pressure rod is fixedly connected to the outer wall of the moving die, a hydraulic rod is installed on the outer wall of the fixed die, an L-shaped insertion rod is fixedly connected to the telescopic shaft at the top of the hydraulic rod, and an insertion plate matching the L-shaped insertion rod is fixedly connected to the outer wall of the moving die.

[0010] Further, the bevel block is located on the moving path of the inclined pressure rod.

[0011] Further, the two ends of the first spring are respectively fixedly connected to the sides of the fixed die and the bevel block close to each other.

[0012] Further, the bottom end of the second guide rod is fixedly connected to the bracket.

[0013] Further, the sides of the two rack plates close to each other are meshed with the gear respectively. The lever is located inside the U-shaped plate. The two ends of the second spring are respectively fixedly connected to the sides of the extension plate and the triangular block close to each other.

[0014] Further, the two first electrical contacts are both located on the rotation path of the lever.

[0015] Further, the second electrical contact is located on the moving path of the third guide rod.

[0016] Further, the bevel block is located on the moving path of the inclined pressure rod, and the top end of the inclined pressure rod extends towards the fixed die.

[0017] Compared with the prior art, the beneficial effects of the present invention are: New energy vehicle metal spare parts usually have strict dimensional accuracy requirements. Once problems such as height differences or poor fitting are detected, signals are transmitted to the die-casting machine in a timely manner to pause or adjust the mold clamping action of the die-casting machine, ensuring that when the fixed mold and the moving mold are clamped, there will be no misalignment between the fixed mold and the moving mold and no gap caused by insufficient clamping force, guaranteeing the tight fit between the fixed mold and the moving mold when clamping, avoiding part size deviations caused by mold problems, ensuring that the produced spare parts have precise dimensions, and meeting the high-precision assembly requirements.

[0018] During the production process of new energy vehicle metal spare parts, promptly detecting and solving mold clamping problems can avoid the scrapping of new energy vehicle metal spare parts and equipment failures caused by mold problems, reduce the number of shutdowns due to quality problems, ensure the continuous and stable operation of the die-casting production of new energy vehicle metal spare parts, and improve the utilization rate of the die-casting machine.

[0019] During the die-casting process, the fixed mold and the moving mold are locked through the L-shaped insertion rod and the insertion plate, ensuring that the fixed mold and the moving mold maintain a fixed relative position during the high-pressure casting process, avoiding mold displacement caused by factors such as the impact of molten metal, thereby ensuring that the produced new energy vehicle metal spare parts have high and stable dimensional accuracy, which is conducive to improving product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 It is a schematic diagram of the structural positions of the die-casting machine, fixed mold, moving mold, etc. of the present invention; Figure 3 It is a schematic diagram of the structural positions of the fixed mold, moving mold, inclined pressure rod, etc. of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in; Figure 5 It is a schematic diagram of the structural positions of the inclined pressure rod, hydraulic rod, etc. of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram at B in; Figure 7 It is a schematic diagram of the structural positions of the first guide rod, inclined plane block, first spring, etc. of the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram at C in; Figure 9 It is a schematic diagram of the misaligned positions of the fixed mold and the moving mold of the present invention; Figure 10 It is a schematic diagram of the unfitted positions of the fixed mold and the moving mold of the present invention.

[0021] In the figure: 11. Die-casting machine; 12. Fixed mold; 13. Moving mold; 21. Guide rod 1; 22. Inclined block; 23. Spring 1; 24. Screw; 25. Guide rod 2; 26. Bracket; 27. Gear; 28. Rack; 29. Pushing rod; 210. Extension plate; 211. Guide rod 3; 212. Triangular block; 213. Spring 2; 214. U-shaped plate; 215. Electric contact 1; 216. Electric contact 2; 217. Inclined pressure rod; 218. Hydraulic rod; 219. L-shaped insertion rod; 220. Insertion plate. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiments provided by the present invention: Please refer to Figures 1 to 10 As shown, a die-casting device for metal spare parts of new energy vehicles includes a die-casting machine 11, and a fixed die 12 and a movable die 13 are arranged on the die-casting machine 11.

[0024] It should be added that the die-casting machine 11, the fixed die 12, and the movable die 13 used here are for die-casting metal spare parts of new energy vehicles, and the die-casting machine 11, the fixed die 12, and the movable die 13 are all known technologies in the art, and will not be described in detail here.

[0025] A plurality of mold clamping components are jointly arranged in a rectangular array on the fixed mold 12 and the moving mold 13. The mold clamping component includes a first guide rod 21, and the first guide rod 21 is fixedly connected to the outer wall of the fixed mold 12. A bevel block 22 is slidably connected to the first guide rod 21. A first spring 23 is sleeved on the first guide rod 21, and the first spring 23 is arranged between the fixed mold 12 and the bevel block 22. The two ends of the first spring 23 are respectively fixedly connected to the fixed mold 12 and the bevel block 22. A screw rod 24 is threadedly connected to the bevel block 22. A second guide rod 25 is slidably connected to the bevel block 22. The bottom end of the screw rod 24 is rotatably connected to a bracket 26, and the bracket 26 is fixedly connected to the bottom of the second guide rod 25. A gear 27 is rotatably connected to the bottom of the bracket 26. Two rack plates 28 are symmetrically and slidably connected to the bottom of the bracket 26. A dial rod 29 which penetrates through the side surface of the bracket 26 and is fixedly connected to the gear 27 is arranged at a position perpendicular to the central axis of the gear 27. An extension plate 210 parallel to the central axis of the gear 27 is fixedly connected to the bottom of the bracket 26. A third guide rod 211 is slidably connected to the extension plate 210. A triangular block 212 is fixedly connected to the bottom end of the third guide rod 211. A second spring 213 is sleeved on the third guide rod 211, and the second spring 213 is arranged between the extension plate 210 and the triangular block 212. The two ends of the second spring 213 are respectively fixedly connected to the extension plate 210 and the triangular block 212. A U-shaped plate 214 is fixedly connected to one side of the bracket 26 close to the dial rod 29. Two first electric contacts 215 are symmetrically installed on the inner side wall of the U-shaped plate 214. A second electric contact 216 is installed at the bottom of the outer side wall of the U-shaped plate 214. An inclined pressure rod 217 is fixedly connected to the outer wall of the moving mold 13. A hydraulic rod 218 is installed on the outer wall of the fixed mold 12. An L-shaped insertion rod 219 is fixedly connected to the top telescopic shaft of the hydraulic rod 218. An insertion plate 220 matching the L-shaped insertion rod 219 is fixedly connected to the outer wall of the moving mold 13.

[0026] It should be noted that during the operation of the die-casting machine 11, the fixed mold 12 and the moving mold 13, the positions where the fixed mold 12 and the moving mold 13 are actually not fitted and displaced are concentrated around the joint surface of the two. In the attached drawings, only one mold clamping component is arranged around the joint surface of the fixed mold 12 and the moving mold 13, which is only for the purpose of drawing display. The number and position of the mold clamping components are determined according to the actual situation.

[0027] The bevel block 22 is located on the moving path of the inclined pressure rod 217. Specifically, when the inclined pressure rod 217 moves and abuts against the bevel block 22, a downward pressure can be applied to the bevel block 22 through the inclined surfaces of the two, so that the bevel block 22 moves vertically downward on the first guide rod 21. Refer to Figure 9 、 Figure 10 As shown, when the moving mold 13 is directly below the rack plate 28 on the side close to the moving mold 13, the inclined pressure rod 217 just abuts against the bevel block 22.

[0028] Refer to Figure 6As shown, two nuts are threadedly connected to the screw rod 24, and the two nuts are respectively arranged on the upper and lower surfaces of the inclined plane block 22. Thus, while the screw rod 24 is threadedly connected to the inclined plane block 22, the user can freely adjust the position of the screw rod 24 on the inclined plane block 22 by adjusting the positions of the two nuts on the screw rod 24. The function of the screw rod 24 is to ensure that the initial height of the bracket 26 is the height required by the user. At the same time, the screw rod 24 makes the bracket 26 and the inclined plane block 22 a stress integral through the nuts. That is, when the inclined plane block 22 moves up and down, the bracket 26 can move synchronously under the limiting action of the screw rod 24 and the nuts.

[0029] The bottom end of the second guide rod 25 is fixedly connected to the bracket 26. The function of the second guide rod 25 is to ensure that when the screw rod 24 adjusts the height of the bracket 26, the bracket 26 is restricted by the vertical sliding guide of the second guide rod 25 and the inclined plane block 22, so that the bracket 26 can only move vertically up and down, ensuring that the bracket 26 will not deflect when adjusting the position through the screw rod 24.

[0030] Refer to Figure 6 As shown, the closer sides of the two toothed plates 28 are meshed with the gear 27. It should be noted that: under the sliding limit of the bracket 26, the two toothed plates 28 can only move vertically up and down.

[0031] Refer to Figures 8 to 10 As shown, the toggle lever 29 is located inside the U-shaped plate 214, and the two first electrical contacts 215 are both on the rotation path of the toggle lever 29. And when the toggle lever 29 is in the vertical state, that is Figure 10 the state shown in, at this time, there is a small gap between the toggle lever 29 and the two first electrical contacts 215, that is, the toggle lever 29 does not contact the first electrical contacts 215 on both sides. It should be noted that: when the toggle lever 29 rotates slightly, the toggle lever 29 can contact the first electrical contacts 215.

[0032] It should be noted that: refer to Figure 8 As shown, the function of the extension plate 210 is to displace the triangular block 212 and the third guide rod 211 from the structures such as the gear 27 and the toothed plate 28, avoiding the operation of the third guide rod 211 and the triangular block 212 from affecting the movement of the gear 27 and the toothed plate 28.

[0033] Refer to Figure 9 、 Figure 10 As shown, one of the toothed plates 28 is located directly above the fixed mold 12, and the other toothed plate 28 is located on the side of the fixed mold 12 close to the moving mold 13. The function is: when the moving mold 13 approaches the fixed mold 12, that is, during the mold closing process, the two toothed plates 28 are respectively located directly above the fixed mold 12 and the moving mold 13.

[0034] Refer to Figure 9 、 Figure 10As shown, the triangular block 212 is located at the center position between the two toothed plates 28, specifically: Refer to Figure 4 , Figure 8 As shown, when the moving mold 13 is not closed towards the fixed mold 12, the bottom end of the triangular block 212 is located below the bottom ends of the two toothed plates 28, that is, the two inclined surfaces of the triangular block 212 are located between the mating surfaces of the fixed mold 12 and the moving mold 13. The function is: when the moving mold 13 is closed towards the fixed mold 12, the fixed mold 12 and the moving mold 13 will contact the inclined surface of the triangular block 212, and the triangular block 212 will be guided to move upward through the inclined surface.

[0035] Refer to Figures 8 to 10 As shown, the electrical contact two 216 is located on the moving path of the guide rod three 211, specifically: when the guide rod three 211 moves upward, the top end of the guide rod three 211 will contact the electrical contact two 216. More specifically: due to the shape setting of the inclined surface of the triangular block 212, when the fixed mold 12 and the moving mold 13 are closed to be precisely mated, at this time, the triangular block 212 is completely lifted to be separated from the mating surface of the fixed mold 12 and the moving mold 13, that is, the triangular block 212 is displaced to the highest position, and the inclined surface of the triangular block 212 no longer contacts the fixed mold 12 and the moving mold 13. At this time, the bottom tip of the triangular block 212 contacts the joint seam of the mating surface of the fixed mold 12 and the moving mold 13. And, as the triangular block 212 moves upward, the guide rod three 211 is synchronously driven to move upward, and the position of the electrical contact two 216 is set at the topmost end of the moving path of the guide rod three 211, that is, when the fixed mold 12 and the moving mold 13 are closed to be tightly mated, the guide rod three 211 can contact the electrical contact two 216.

[0036] Both the two electrical contacts one 215 and the electrical contact two 216 have an electrical connection relationship with the control system of the die-casting machine 11. The electrical contact one 215 is responsible for transmitting the data signal of whether the fixed mold 12 and the moving mold 13 are misaligned, and the electrical contact two 216 is responsible for transmitting the data signal of whether the fixed mold 12 and the moving mold 13 are precisely mated.

[0037] When any one of the two electrical contacts one 215 is contacted by the toggle lever 29, the control system of the die-casting machine 11 receives the danger signal transmitted by the electrical contact one 215, that is, at this time, the fixed mold 12 and the moving mold 13 are misaligned.

[0038] When neither of the two electrical contacts one 215 is contacted by the toggle lever 29, the control system of the die-casting machine 11 receives the safety signal transmitted by the electrical contact one 215, that is, at this time, the fixed mold 12 and the moving mold 13 are not misaligned.

[0039] When the guide rod three 211 contacts the electrical contact two 216, the control system of the die-casting machine 11 receives the safety signal transmitted by the electrical contact two 216, that is, at this time, the fixed mold 12 and the moving mold 13 are tightly mated.

[0040] When the guide rod three 211 does not touch the electrical contact two 216, the control system of the die-casting machine 11 receives the danger signal transmitted by the electrical contact two 216, that is, there is a gap between the fixed die 12 and the moving die 13 at this time.

[0041] There is an electrical connection relationship between the hydraulic rod 218 and the control system of the die-casting machine 11. Specifically: after the control system of the die-casting machine 11 receives the safety signals transmitted by the electrical contact one 215 and the electrical contact two 216, the control system of the die-casting machine 11 drives the hydraulic rod 218, so that the telescopic end of the hydraulic rod 218 contracts. When the die-casting of the metal parts of the new energy vehicle is completed between the fixed die 12 and the moving die 13, the control system of the die-casting machine 11 drives the telescopic end of the hydraulic rod 218 to extend. When the telescopic end of the hydraulic rod 218 contracts, the hydraulic rod 218 drives the L-shaped insertion rod 219 to move, so that the bottom end of the L-shaped insertion rod 219 can be inserted into the inside of the insertion plate 220. Specifically: the insertion plate 220 is inserted and matched with the bottom end of the L-shaped insertion rod 219, and the two are closely matched.

[0042] Refer to Figure 5 As shown, the top end of the inclined pressure rod 217 extends towards the fixed die 12. The function is: before the fixed die 12 and the moving die 13 are not fully closed and fitted, the inclined pressure rod 217 first touches the inclined plane block 22. The purpose is: as known from the above, before the fixed die 12 and the moving die 13 are closed, the problems related to the closing of the fixed die 12 and the moving die 13 can be eliminated, and the tight fit when the fixed die 12 and the moving die 13 are closed can be ensured.

[0043] In the initial stage of the mold-locking assembly, that is, when the fixed die 12 and the moving die 13 are not closed, the states of each structure inside the mold-locking assembly are as follows: the guide rod one 21 does not touch the inclined pressure rod 217, the spring one 23 is not elastically compressed, the bottoms of the two toothed plates 28 are flush, the toggle lever 29 and the gear 27 do not rotate, the spring two 213 is not elastically compressed, and the telescopic end of the hydraulic rod 218 does not contract.

[0044] In the operation stage of the mold-locking assembly, that is, when the fixed die 12 and the moving die 13 are closed, as known from the above, as the moving die 13 moves towards the fixed die 12 to close the mold, the inclined pressure rod 217 will touch the inclined plane block 22, causing the inclined plane block 22 to move downward on the guide rod one 21, and at the same time elastically compressing the spring one 23. As the inclined plane block 22 moves downward, the bracket 26 drives the two toothed plates 28 to move downward synchronously. When the two toothed plates 28 touch the fixed die 12 and the moving die 13, if there is a misalignment between the fixed die 12 and the moving die 13, that is, there is a height difference between the fixed die 12 and the moving die 13, at this time the mold-locking assembly is as Figure 9In the state shown in the figure, the tooth plate 28 on one side is blocked from moving downward, while the tooth plate 28 on the other side continues to move downward. Then, the tooth plate 28 meshes with the gear 27 to make the gear 27 rotate, and the gear 27 drives the lever 29 to rotate synchronously. At this time, the lever 29 touches the U-shaped plate 214, and the U-shaped plate 214 transmits a danger signal of misalignment between the fixed mold 12 and the moving mold 13 to the control system of the die-casting machine 11.

[0045] It should be noted that for the convenience of showing the structure, there are differences between the specific sizes of the bracket 26, the gear 27, and the tooth plate 28 in the attached drawings and their sizes in the actual production process. For example, the size of the tooth plate 28, the initial height of the tooth plate 28, etc. will be adjusted according to the size of the actual equipment and the maximum error. And the operation logic of this component is that when the moving mold 13 moves to below the tooth plate 28 on the side close to the moving mold 13, the oblique pressure rod 217 will start to touch the inclined surface block 22. At this time, the tooth plate 28 moves in the direction close to the moving mold 13 for misalignment detection. And the height of the bracket 26 can be adjusted by the screw rod 24, and the detection range of the tooth plate 28 can also be adjusted accordingly. The staff can very conveniently adjust the detection range of the tooth plate 28 for mold closing misalignment. If the precision requirement for mold closing is high, the bracket 26 is adjusted to a position closer to the fixed mold 12. If the precision requirement for mold closing is low, the bracket 26 can be adjusted to a position closer to the inclined surface block 22.

[0046] If the misalignment between the moving mold 13 and the fixed mold 12 is too serious, the side of the tooth plate 28 touches the moving mold 13 before the tooth plate 28 is pressed down. At this time, the staff can very intuitively see the misalignment of the moving mold 13 and directly adjust the moving mold 13. However, this detection method is not the correct means for the tooth plate 28 to detect misalignment and only exists in the unexpected situation where the misalignment degree between the moving mold 13 and the fixed mold 12 exceeds the misalignment detection range. Therefore, this situation belongs to a relatively large problem with the mold closing precision of the die-casting device itself and should not be included in the discussion of whether this solution can be realized.

[0047] If the fixed mold 12 and the movable mold 13 are not misaligned, but the clamping force between the fixed mold 12 and the movable mold 13 is insufficient, that is, there is a gap between the fixed mold 12 and the movable mold 13. As known from the above, as the support 26 moves downward, the support 26 drives the triangular block 212 to move between the mating surfaces of the fixed mold 12 and the movable mold 13. As the fixed mold 12 and the movable mold 13 are clamped, the fixed mold 12 and the movable mold 13 are guided by the inclined surface of the triangular block 212, so that the triangular block 212 drives the guide rod three 211 to move upward, and at the same time, the spring two 213 is elastically compressed. However, due to the insufficient clamping force between the fixed mold 12 and the movable mold 13 at this time, a gap will be generated between the fixed mold 12 and the movable mold 13 after the clamping is completed. Furthermore, the fixed mold 12 and the movable mold 13 are not sufficient to lift the triangular block 212 to the point where the guide rod three 211 contacts the electrical contact two 216. Therefore, the electrical contact two 216 transmits a danger signal indicating the existence of a gap between the fixed mold 12 and the movable mold 13 to the control system of the die-casting machine 11.

[0048] Specifically: when the control system of the die-casting machine 11 receives a safety signal, it conveys a safety message to the external user. When the control system of the die-casting machine 11 receives a danger signal, the die-casting machine 11 stops working and conveys a danger message to the external user for the staff to perform maintenance and inspection operations.

[0049] When there is no misalignment or gap during the clamping process of the fixed mold 12 and the movable mold 13, that is, the fixed mold 12 and the movable mold 13 are closely fitted, that is, when the control system of the die-casting machine 11 receives the safety signals transmitted by the electrical contact one 215 and the electrical contact two 216, the control system of the die-casting machine 11 drives the telescopic shaft of the hydraulic rod 218 to contract at this time. The telescopic shaft of the hydraulic rod 218 drives the L-shaped insertion rod 219 to move, so that the L-shaped insertion rod 219 is inserted into the inside of the insertion plate 220. At this time, the L-shaped insertion rod 219 and the insertion plate 220 are closely matched.

[0050] In summary, since the mold clamping assembly is arranged around the fixed mold 12 and the movable mold 13, at this time, the four sides of the fixed mold 12 and the movable mold 13 are locked by the close fit of the L-shaped insertion rod 219 and the insertion plate 220, that is, the L-shaped insertion rod 219 and the insertion plate 220 are used to lock the fixed mold 12 and the movable mold 13.

[0051] In summary, new energy vehicle metal spare parts usually have strict dimensional accuracy requirements. Once problems such as height differences or loose fits are found, signals are transmitted to the die-casting machine 11 in a timely manner to make the die-casting machine 11 pause or adjust the clamping action, which can ensure that when the fixed mold 12 and the movable mold 13 are clamped, there will be no misalignment or insufficient clamping force resulting in a gap between the fixed mold 12 and the movable mold 13, ensuring the close fit of the fixed mold 12 and the movable mold 13 during clamping, avoiding part size deviations caused by mold problems, and ensuring that the produced spare parts have precise dimensions and meet the high-precision assembly requirements.

[0052] Meanwhile, during the production of metal spare parts for new energy vehicles, promptly detecting and resolving mold clamping problems can avoid the scrapping of metal spare parts for new energy vehicles and equipment failures caused by mold problems, reduce the number of shutdowns due to quality issues, ensure the continuous and stable operation of die casting for the production of metal spare parts for new energy vehicles, and improve the utilization rate of the die casting machine 11.

[0053] Meanwhile, during the die casting process, even a tiny mold clamping displacement may cause dimensional deviations in parts. By using the L-shaped insertion rod 219 and the insertion plate 220 to lock the fixed mold 12 and the moving mold 13, it can ensure that the fixed mold 12 and the moving mold 13 maintain a fixed relative position during high-pressure casting, avoiding mold displacement caused by factors such as the impact of molten metal, thereby ensuring that the produced metal spare parts for new energy vehicles have high dimensional accuracy and stability, which is conducive to improving product consistency.

[0054] When the fixed mold 12 and the moving mold 13 need to be separated, that is, after the die casting of the metal spare parts for new energy vehicles is completed, at this time, the control system of the die casting machine 11 drives the telescopic end of the hydraulic rod 218 to extend. At this time, the hydraulic rod 218 drives the L-shaped insertion rod 219 to disengage from the inside of the insertion plate 220. At this time, the fixed mold 12 and the moving mold 13 are released from the mold clamping state, and the moving mold 13 moves away from the fixed mold 12. At this time, the inclined pressure rod 217 is driven away from the inclined plane block 22. At this time, the inclined pressure rod 217 no longer abuts against the inclined plane block 22. Under the elastic extension of the first spring 23, the first spring 23 drives the inclined plane block 22 to reset. At the same time, the triangular block 212 no longer abuts against the fixed mold 12 and the moving mold 13. Under the elastic extension of the second spring 213, the second spring 213 pushes the triangular block 212 and the guide rod three 211 to reset. At this time, the mold clamping assembly resets.

[0055] It should be noted that in this article, relational terms such as first and second are only used 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 "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting device for metal spare parts of new energy vehicles, comprising a die-casting machine (11), on which a fixed die (12) and a movable die (13) are arranged, characterized in that: A plurality of mold clamping components are jointly arranged in a rectangular array on the fixed mold (12) and the moving mold (13). The mold clamping component includes a first guide rod (21), and the first guide rod (21) is fixedly connected to the outer wall of the fixed mold (12). A bevel block (22) is slidably connected to the first guide rod (21). A first spring (23) is sleeved on the first guide rod (21). A screw rod (24) is threadedly connected to the bevel block (22). A second guide rod (25) is slidably connected to the bevel block (22). The bottom end of the screw rod (24) is rotatably connected to a bracket (26). The bracket (26) is fixedly connected to the bottom of the second guide rod (25). A gear (27) is rotatably connected to the bottom of the bracket (26). Two rack plates (28) are symmetrically and slidably connected to the bottom of the bracket (26). A toggle rod (29) is fixedly connected to the gear (27). An extension plate (210) is fixedly connected to the bottom of the bracket (26). A third guide rod (211) is slidably connected to the extension plate (210). A triangular block (212) is fixedly connected to the bottom end of the third guide rod (211). A second spring (213) is sleeved on the third guide rod (211).

2. The die-casting device for metal spare parts of a new energy vehicle according to claim 1, characterized in that: A U-shaped plate (214) is fixedly connected to one side of the bracket (26) close to the toggle rod (29). Two first electrical contacts (215) are symmetrically installed on the inner side wall of the U-shaped plate (214). A second electrical contact (216) is installed at the bottom of the outer side wall of the U-shaped plate (214). An inclined pressure rod (217) is fixedly connected to the outer wall of the moving mold (13). A hydraulic rod (218) is installed on the outer wall of the fixed mold (12). An L-shaped insertion rod (219) is fixedly connected to the top telescopic shaft of the hydraulic rod (218). An insertion plate (220) matching the L-shaped insertion rod (219) is fixedly connected to the outer wall of the moving mold (13).

3. The die-casting device for metal spare parts of a new energy vehicle according to claim 1, wherein: The bevel block (22) is located on the moving path of the inclined pressure rod (217).

4. A die-casting device for metal spare parts of a new energy vehicle according to claim 1, characterized in that: The two ends of the first spring (23) are respectively fixedly connected to the sides of the fixed mold (12) and the bevel block (22) close to each other.

5. The die-casting device for metal spare parts of a new energy vehicle according to claim 1, characterized in that: The bottom end of the second guide rod (25) is fixedly connected to the bracket (26).

6. The die-casting device for metal spare parts of a new energy vehicle according to claim 1, wherein: The sides of the two rack plates (28) close to each other are meshed with the gear (27). The toggle rod (29) is located inside the U-shaped plate (214). The two ends of the second spring (213) are respectively fixedly connected to the sides of the extension plate (210) and the triangular block (212) close to each other.

7. The die-casting device for metal spare parts of a new energy vehicle according to claim 2, wherein: Both of the two first electrical contacts (215) are located on the rotation path of the toggle rod (29).

8. The die-casting device for metal spare parts of a new energy vehicle according to claim 2, characterized in that: The second electrical contact (216) is located on the moving path of the third guide rod (211).

9. The die-casting device for metal spare parts of a new energy vehicle according to claim 2, wherein: The bevel block (22) is located on the moving path of the inclined pressure rod (217), and the top end of the inclined pressure rod (217) extends towards the fixed mold (12).

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