A new energy automobile motor front cylinder body blank die-casting die

Abstract

The utility model relates to die casting mould technical field, concretely relates to a new energy automobile motor front cylinder body blank die casting mould, including mould main part, the front residue package board and the rear residue package board are fixed and installed respectively on mould main part, and the side close to the front residue package board of mould main part and the side close to the rear residue package board are set up with the accommodation groove respectively, the cutting block is set up in the accommodation groove and slides, the driving mechanism for driving cutting block displacement along the accommodation groove is set up on mould main part respectively. Through driving mechanism, when the mould main part opens mould, drive two cutting blocks and move towards, thereby make cutting block can cut off residue package condensate, complete residue package condensate separation simultaneously, save the condensate process alone, simplify production process, solved the technical problem that the rejection rate of manual cleaning residue package is higher, and mechanical automatic processing residue package, lead to every batch production cycle extension.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically to a die-casting mold for a front cylinder block blank of a new energy vehicle motor. Background Technology

[0002] The die-casting mold for the front cylinder block blank of a new energy vehicle motor is a tool used to produce the blank of the front cylinder block of an electric vehicle motor. The main function of the die-casting mold for the front cylinder block blank is to inject molten metal into the mold cavity and form the blank of the front cylinder block by cooling and solidification. The front cylinder block of the motor bears a large mechanical load and high temperature. The mold design must ensure that the front cylinder block of the motor has sufficient strength and rigidity to protect the internal components of the motor from external impact or overheating.

[0003] Chinese Patent Publication No. CN215544824U discloses a die-casting mold for a new energy motor housing, comprising: a fixed mold assembly with a vertically penetrating sprue cylinder on its right side, a core post on its bottom surface, a sprue runner on the right side of the core post, and a first slag runner on the left side of the core post; a first notch on the bottom surface of the sprue cylinder connecting the sprue runner and the inner cavity of the sprue cylinder; a moving mold assembly located at the bottom of the fixed mold assembly, forming a front-to-back penetrating core-pulling channel with the fixed mold assembly; a sprue post on the right side of the moving mold assembly, and a second and third slag runners on the top surface of the moving mold assembly, the third slag runner connecting to the first slag runner, the second slag runner located on the bottom surface of the core-pulling channel; and a block assembly including two opposing parting blocks, with the core post located between the two parting blocks. This structure ensures that the motor housing forms a complete raised strip structure during die casting, improving the molding quality of the motor housing and reducing the scrap rate.

[0004] The aforementioned patent proposes that the mold is equipped with first, second, and third slag-filled channels. The first slag-filled channel is connected to the main channel via a branch channel, the second slag-filled channel extends to the side of the moving mold, and the third slag-filled channel can communicate with the first slag-filled channel, creating a weak structure at the connection between the solidified block and the main body of the casting. During die casting, oxide slag and impurities in the molten metal are inevitably intercepted and cooled by the mold's slag-filled channels to form solidified blocks, which are naturally connected to the motor housing casting. In the process of removing these solidified blocks, manual cleaning results in a high scrap rate. While automated mechanical processing can improve efficiency, it adds a solidified block removal step to the production process, leading to a longer production cycle for each batch. Therefore, we propose a die casting mold for the front cylinder block blank of a new energy vehicle motor. Utility Model Content

[0005] To address the aforementioned issues, a die-casting mold for the front cylinder block blank of a new energy vehicle motor is provided. A drive mechanism drives two cutting blocks to move in opposite directions when the mold body opens, allowing the cutting blocks to cut off the slag blob and simultaneously separate the slag blob. This eliminates the need for a separate slag removal process, simplifies the production flow, and solves the technical problem of high scrap rates with manual slag blob cleaning and extended production cycles with automated mechanical slag blob processing.

[0006] To address the existing technical problems, this utility model provides a die-casting mold for a front cylinder block blank of a new energy vehicle motor, comprising a mold body, on which a front slag cover plate and a rear slag cover plate are fixedly installed respectively. A mounting groove is provided on the side of the mold body near the front slag cover plate and the side near the rear slag cover plate respectively. A cutting block is slidably arranged in the mounting groove. A driving mechanism is provided on the mold body for driving the cutting block to move along the mounting groove.

[0007] Preferably, the mounting groove is composed of a rectangular groove and a cylindrical groove, the rectangular groove and the cylindrical groove are connected, and the cutting block slides into the rectangular groove.

[0008] Preferably, the driving mechanism includes a connecting rod and an elastic reset member; the connecting rod is slidably disposed in the cylindrical groove and is rotatably connected to the cutting block; the elastic reset member is disposed in the cylindrical groove, and its two ends are fixedly connected to the inner wall of the cylindrical groove and the connecting rod, respectively.

[0009] Preferably, the drive mechanism further includes a transmission component and a guide component; the transmission component is disposed on the mold body and is used to transmit the linear motion power of the mold body during mold parting to the cutting block; the guide component is disposed on the connecting rod and is used to assist the cutting block in achieving linear displacement.

[0010] Preferably, the transmission assembly includes a gear plate, a gear disc, and a bevel gear assembly; the gear plate is fixedly connected to the mold body; the gear disc is rotatably mounted on the mold body; the bevel gear assembly is rotatably mounted on the mold body, and the working end of the bevel gear assembly is fixedly connected to the gear disc.

[0011] Preferably, the working end of the bevel gear assembly away from the gear disc is fixedly connected to the support rod, and the connecting rod has a slot, with the end of the support rod away from the bevel gear assembly slidably inserted into the slot.

[0012] Preferably, the guide assembly includes a curved groove and a slider; the curved groove is formed on the outside of the connecting rod; the slider is slidably disposed in the curved groove, and the outside of the slider is fixedly connected to the mold body.

[0013] The advantages of this utility model compared to the prior art are: 1. By driving the two cutting blocks to move towards each other when the mold body opens, the cutting blocks can cut off the slag bag lumps and complete the separation of slag bag lumps at the same time, eliminating the separate lumps removal process, simplifying the production process, and solving the technical problem that the scrap rate of manual cleaning of slag bags is high, while mechanical automation of slag bags leads to an extended production cycle for each batch.

[0014] 2. By using the elastic force of the elastic reset component to push the connecting rod, the cutting block is kept in a predetermined position away from the placement groove, effectively limiting the unexpected displacement of the cutting block. This solves the technical problem that the cutting block is prone to arbitrary displacement when not in operation, which leads to the failure of slag bag solidification cutting, surface damage to castings, and a decrease in production stability. Attached Figure Description

[0015] Figure 1 This utility model application presents a three-dimensional schematic diagram of the mold body and the front slag plate of a die-casting mold for a front cylinder block blank of a new energy vehicle motor.

[0016] Figure 2 This utility model application presents a three-dimensional schematic diagram of the mold body and the rear slag plate of a die-casting mold for the front cylinder block blank of a new energy vehicle motor.

[0017] Figure 3 This utility model application presents a three-dimensional schematic diagram of the front slag plate and the rear slag plate of a die-casting mold for the front cylinder block blank of a new energy vehicle motor.

[0018] Figure 4 This utility model application presents a three-dimensional schematic diagram of the toothed plate and toothed disc of a die-casting mold for a front cylinder block blank of a new energy vehicle motor.

[0019] Figure 5 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 6 yes Figure 3 Enlarged diagram of point B in the middle.

[0021] Figure 7 yes Figure 4 Enlarged diagram of point C in the middle.

[0022] The following are the labels in the diagram: 1. Mold body; 11. Front slag cover plate; 12. Rear slag cover plate; 2. Placement groove; 21. Cutting block; 22. Connecting rod; 23. Elastic reset component; 24. Tooth plate; 25. Tooth disc; 26. Conical tooth assembly; 27. Support rod; 28. Slot; 29. ​​Curved groove; 210. Slider. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] See Figures 1-4 As shown, a die-casting mold for a front cylinder block blank of a new energy vehicle motor includes a mold body 1. A front slag plate 11 and a rear slag plate 12 are fixedly installed on the mold body 1. A placement groove 2 is provided on the side of the mold body 1 near the front slag plate 11 and the side near the rear slag plate 12. A cutting block 21 is slidably arranged in the placement groove 2. A driving mechanism for driving the cutting block 21 to move along the placement groove 2 is provided on the mold body 1. The placement groove 2 is composed of a rectangular groove and a cylindrical groove, which are connected. The cutting block 21 is slidably engaged with the rectangular groove. The driving mechanism includes a connecting rod 22 and an elastic reset member 23. The connecting rod 22 is slidably arranged in the cylindrical groove and is rotatably connected to the cutting block 21. The elastic reset member 23 is arranged in the cylindrical groove, and its two ends are fixedly connected to the inner wall of the cylindrical groove and the connecting rod 22, respectively.

[0025] Specifically, the cutting block 21 and the rectangular groove of the mounting groove 2 form a sliding guide pair, and the connecting rod 22 and the cylindrical groove of the mounting groove 2 form a sliding guide pair. The elastic reset member 23 is preferably a spring. After the blank of the motor front cylinder inside the mold body 1 cools and solidifies, the mold body 1 performs the mold opening action, and the moving mold assembly separates from the fixed mold assembly. The linear motion driving force of the moving mold assembly is transmitted to the drive mechanism, causing the drive mechanism to drive the two cutting blocks 21 to move towards each other. Through the squeezing action of the cutting blocks 21, the slag blob on the blank is automatically cut off, and the separation of the slag blob from the casting body is completed simultaneously.

[0026] By driving two cutting blocks 21 through a drive mechanism to cut off the slag bag lumps, a separate de-lumping process can be eliminated, effectively shortening the production cycle. The mechanical force generated by the opposite displacement of the cutting blocks 21 is precisely applied to the weak connection between the lumps and the casting body, ensuring reliable separation of the lumps and avoiding surface scratches and dimensional inaccuracies caused by manual cleaning, thus reducing the scrap rate. At the same time, there is no need to configure additional external de-lumping equipment, reducing equipment investment and production floor space, and simplifying the production process.

[0027] See Figures 4-7As shown, the drive mechanism also includes a transmission assembly and a guide assembly. The transmission assembly is mounted on the mold body 1 and is used to transmit the linear motion power of the mold body 1 during mold parting to the cutting block 21. The guide assembly is mounted on the connecting rod 22 and is used to assist the cutting block 21 in achieving linear displacement. The transmission assembly includes a toothed plate 24, a toothed disc 25, and a bevel gear assembly 26. The toothed plate 24 is fixedly connected to the mold body 1. The toothed disc 25 is rotatably mounted on the mold body 1. The bevel gear assembly 26 is rotatably mounted on the mold body 1, and the working end of the bevel gear assembly 26 is fixedly connected to the toothed disc 25. The working end of the bevel gear assembly 26 away from the toothed disc 25 is fixedly connected to the support rod 27. The connecting rod 22 has a slot 28, and the end of the support rod 27 away from the bevel gear assembly 26 is slidably inserted into the slot 28. The guide assembly includes a curved groove 29 and a slider 210. The curved groove 29 is located on the outside of the connecting rod 22. The slider 210 is slidably mounted in the curved groove 29, and the outside of the slider 210 is fixedly connected to the mold body 1.

[0028] Specifically, the bevel gear assembly 26 consists of two meshing bevel gears. The support rod 27 and slot 28 form a sliding guide pair; the cross-sectional shape of the support rod 27 is rectangular. The curved groove 29 and slider 210 form a sliding guide pair.

[0029] During the mold body 1 closing process, the moving mold assembly moves in a straight line, and the toothed plate 24 is simultaneously inserted into the lower side of the toothed disc 25 and forms a meshing connection, driving the toothed disc 25 to rotate. The toothed disc 25 drives the bevel gear of the bevel gear assembly 26 to rotate. The bevel gear assembly 26 is composed of two meshing bevel gears, which in turn drives the support rod 27 to rotate.

[0030] The support rod 27 and the slot 28 form a sliding guide pair, and the cross-section of the support rod 27 is rectangular. The rotational motion of the support rod 27 can be transmitted to the connecting rod 22. Since the cutting block 21 and the rectangular groove of the placement slot 2 form a sliding guide pair, the cutting block 21 can only move linearly along the rectangular groove and does not rotate with the connecting rod 22. When the connecting rod 22 rotates, the curved groove 29 on the surface of the connecting rod 22 and the slider 210 exert a squeezing effect. Through the guidance of the slider 210 and the curved groove 29, the connecting rod 22 is driven to move linearly, thereby pulling the cutting block 21 to move towards each other.

[0031] During this process, the connecting rod 22 compresses the elastic reset member 23 to shrink and deform it, and the cutting block 21 is completely housed in the rectangular groove of the placement groove 2, ensuring that the slag bag flow channel remains unobstructed and providing a guarantee for the injection of molten metal into the mold body 1.

[0032] After the blank of the motor front cylinder inside the mold body 1 cools and solidifies, the mold performs the mold opening action, and the moving mold assembly and the fixed mold assembly separate relative to each other. At this time, the toothed plate 24 drives the toothed disc 25 to rotate in the opposite direction, which is transmitted to the support rod 27 through the bevel tooth assembly 26, causing the support rod 27 to rotate in the opposite direction; the slider 210 drives the connecting rod 22 to move under the guidance of the curved groove 29, pushing the cutting blocks 21 closer to each other, and the cutting action of the cutting blocks 21 achieves the cutting and separation of the slag-covered solids on the blank; When the toothed plate 24 and the toothed disc 25 are completely disengaged, the elastic reset member 23 extends and resets, pushing the connecting rod 22 through elastic force, so that the cutting block 21 is kept in the predetermined position away from the mounting groove 2, effectively limiting the unexpected displacement of the cutting block 21 and ensuring the stability and reliability of the movement of the cutting block 21.

[0033] Working principle: After the blank of the motor front cylinder inside the mold body 1 cools and solidifies, the mold performs the mold opening action, and the moving mold assembly and the fixed mold assembly separate relative to each other. The toothed plate 24 drives the toothed disc 25 to rotate, and transmits the rotational motion to the support rod 27 through the bevel gear assembly 26, causing the support rod 27 to rotate synchronously. The rotational motion of the support rod 27 is converted into the linear displacement of the connecting rod 22 through the guiding cooperation of the slider 210 and the curved groove 29, which in turn pulls the cutting blocks 21 to move towards each other. Through the mutual approach and shearing action of the cutting blocks 21, the slag-covered lumps on the blank are cut and separated.

[0034] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A die-casting mold for a front cylinder block blank of a new energy vehicle motor, comprising a mold body (1), on which a front slag plate (11) and a rear slag plate (12) are respectively fixedly installed, characterized in that, The mold body (1) has a mounting groove (2) on the side near the front slag bag plate (11) and the side near the rear slag bag plate (12). A cutting block (21) is slidably installed inside the placement groove (2); The mold body (1) is provided with a drive mechanism for driving the cutting block (21) to move along the placement groove (2).

2. The die-casting mold for a front cylinder block blank of a new energy vehicle motor according to claim 1, characterized in that, The placement groove (2) is composed of a rectangular groove and a cylindrical groove, which are connected. The cutting block (21) slides with the rectangular groove.

3. The die-casting mold for a front cylinder block blank of a new energy vehicle motor according to claim 2, characterized in that, The drive mechanism includes a connecting rod (22) and a resilient reset member (23); The connecting rod (22) is slidably disposed in the cylindrical groove, and the connecting rod (22) is rotatably connected to the cutting block (21); The elastic reset member (23) is disposed in the cylindrical groove, and the two ends of the elastic reset member (23) are fixedly connected to the inner wall of the cylindrical groove and the connecting rod (22) respectively.

4. The die-casting mold for the front cylinder block blank of a new energy vehicle motor according to claim 2, characterized in that, The drive mechanism also includes a transmission assembly and a guide assembly; The transmission assembly is installed on the mold body (1) and is used to transmit the linear motion power of the mold body (1) during mold splitting to the cutting block (21). The guide component is set on the connecting rod (22) and is used to assist the cutting block (21) in achieving linear displacement.

5. The die-casting mold for the front cylinder block blank of a new energy vehicle motor according to claim 1, characterized in that, The transmission assembly includes a toothed plate (24), a toothed disc (25), and a bevel gear assembly (26); The toothed plate (24) is fixedly connected to the mold body (1); The toothed disc (25) is rotatably mounted on the mold body (1); The bevel gear assembly (26) is rotatably mounted on the mold body (1), and the working end of the bevel gear assembly (26) is fixedly connected to the gear plate (25).

6. The die-casting mold for a front cylinder block blank of a new energy vehicle motor according to claim 5, characterized in that, The working end of the bevel gear assembly (26) away from the gear plate (25) is fixedly connected to the support rod (27). The connecting rod (22) has a slot (28), and the end of the support rod (27) away from the bevel gear assembly (26) is slidably inserted into the slot (28).

7. The die-casting mold for a front cylinder block blank of a new energy vehicle motor according to claim 6, characterized in that, The guide assembly includes a curved groove (29) and a slider (210); The groove (29) is located on the outside of the connecting rod (22); The slider (210) is slidably disposed in the curved groove (29), and the outer side of the slider (210) is fixedly connected to the mold body (1).

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