A core tooling for brake disc

Abstract

This utility model provides a brake disc core lowering fixture. A positioning support base supports and positions the outer and inner sand cores, maintaining them in a specific posture. Simultaneously, a transfer gripper moves the outer and inner sand cores from the support positioning base into the sand box. The transfer gripper includes an inner chuck and an outer chuck, with the inner chuck connected to the axial end of the outer chuck. The inner chuck grips the inner sand core, and the outer chuck grips the outer sand core, thereby moving the coated sand core from the positioning support base into the sand box to complete the core lowering process.

Description

Technical Field

[0001] This utility model relates to the field of brake disc manufacturing technology, and in particular to a brake disc lower core tooling. Background Technology

[0002] Brake discs are crucial safety components in vehicles. Due to their shape and structural limitations, they are typically manufactured using a casting process. Furthermore, the casting process requires the use of coated sand cores in conjunction with a sand box to obtain the brake disc blank after casting. Additionally, existing coated sand cores are usually composed of multiple cores joined together.

[0003] However, when core-setting coated sand cores, manual core-setting is usually required. This method of core-setting can easily lead to unstable splicing or fit between the sand cores, making it difficult for the shape of the sand cores to meet the requirements. This can result in the need for sand scraping after core-setting or the formation of sand holes in the casting. Utility Model Content

[0004] The purpose of this utility model is to provide a brake disc lower core tooling that can ensure the consistency and stability of the lower core and reduce manual labor.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: According to one aspect of the present invention, a brake disc lower core tooling is provided. The brake disc lower core tooling is used to place a coated sand core of a brake disc into a sand box. The coated sand core includes an outer sand core and an inner sand core, and the inner sand core is located within the axial hole of the outer sand core. The brake disc lower core tooling includes: a positioning support for supporting the outer sand core and the inner sand core and positioning them; and a transfer gripper capable of transferring the outer sand core and the inner sand core from the positioning support to the sand box. The transfer gripper includes an inner chuck and an outer chuck, the inner chuck being connected to the axial end of the outer chuck. The inner chuck includes an inner chuck seat and multiple inner chuck claws. The multiple inner chuck claws are mounted on the inner chuck seat and spaced apart circumferentially along the inner chuck seat. The inner chuck claws are movable relative to the inner chuck seat, allowing the multiple inner chuck claws to simultaneously abut against or disengage from the inner sand core, thereby gripping or releasing the inner sand core. The outer chuck includes an outer chuck seat and multiple outer chuck claws. The multiple outer chuck claws are mounted on the outer chuck seat and spaced apart circumferentially along the outer chuck seat. The outer chuck claws are movable relative to the outer chuck claws, allowing the multiple outer chuck claws to simultaneously abut against or disengage from the outer sand core, thereby gripping or releasing the outer sand core.

[0006] In one embodiment of this application, the inner chuck includes a first chuck segment, a second chuck segment, and a connecting segment. The connecting segment is connected to the inner chuck seat. The first chuck segment and the second chuck segment are connected to the connecting segment. The first chuck segment and the second chuck segment are spaced apart in the radial direction of the inner chuck seat. Both the first chuck segment and the second chuck segment extend in the axial direction of the inner chuck seat. When the inner chuck moves in the radial direction of the inner chuck seat, the first chuck segment can abut against the inner wall of the inner sand core, or the second chuck segment can abut against the outer wall of the inner sand core.

[0007] In one embodiment of this application, a first finger is provided on the side of the first claw segment away from the connecting segment. The first finger is adapted to the inner wall of the inner sand core so that the first finger can fit against the inner wall of the inner sand core.

[0008] In one embodiment of this application, the inner chuck further includes an abutment member, which is installed on the side of the second claw segment away from the connecting segment. The side of the abutment member facing the inner sand core is adapted to the outer surface of the inner sand core, so that the abutment member can fit against the outer wall of the inner sand core.

[0009] In one embodiment of this application, the outer claw includes an extension section and an outer claw section. The extension section is connected to the outer clasp and extends in the radial direction of the outer clasp. The outer claw section is connected to the extension section and extends in the axial direction of the outer clasp. When the extension section moves in the radial direction of the outer clasp, the outer claw section can abut against the outer wall of the outer sand core.

[0010] In one embodiment of this application, the outer chuck further includes a stop member, which is installed on the side of the outer claw segment away from the extension segment. The side of the stop member facing the outer sand core is adapted to the outer surface of the outer sand core, so that the stop member can fit against the outer wall of the outer sand core.

[0011] In one embodiment of this application, the positioning support is provided with a support member, the support member is provided with a support platform and a support groove recessed downward from the support platform, the support platform is used to support the outer sand core, and the support groove is adapted to the axial end of the inner sand core, so that the inner sand core can be engaged in the support groove and the support groove can support the inner sand core.

[0012] In one embodiment of this application, the positioning support is provided with a positioning element that extends vertically and has a positioning opening at its top. The positioning opening can cooperate with the positioning part on the outer sand core to position the outer sand core circumferentially.

[0013] In one embodiment of this application, the positioning support is provided with a plurality of limiting posts, which are spaced apart circumferentially along the positioning support and extend vertically. The part of the limiting post that abuts against the outer sand core is defined as the abutting part. The shape of the abutting part is adapted to the outer surface of the outer sand core, so that the plurality of limiting posts can simultaneously abut against the outer side wall of the outer sand core and limit the outer sand core.

[0014] In one embodiment of this application, the inner chuck further includes an inner drive cylinder connected between the inner jaw and the inner chuck seat to drive the inner jaw to move relative to the inner chuck seat in the radial direction of the inner chuck seat. The outer chuck further includes an outer drive cylinder connected between the outer jaw and the outer chuck seat to drive the outer jaw to move relative to the outer chuck seat in the radial direction of the outer chuck seat.

[0015] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: In this invention, the brake disc core lowering fixture includes a positioning support base and a transfer gripper. The positioning support base supports and positions the outer and inner sand cores, maintaining them in a specific posture. Simultaneously, the transfer gripper transfers the outer and inner sand cores from the support positioning base to the sand box. The transfer gripper includes an inner chuck and an outer chuck lifting assembly, with the inner chuck connected to the axial end of the outer chuck. The inner chuck grips the inner sand core, and the outer chuck grips the outer sand core, thereby moving the coated sand core from the positioning support base into the sand box to complete the core lowering process. Furthermore, the inner chuck includes an inner chuck seat and multiple inner chuck claws, which are spaced circumferentially on the inner chuck seat and can move relative to it, allowing the multiple inner chuck claws to simultaneously abut and grip the inner sand core. The outer chuck includes an outer chuck base and multiple outer chuck claws. These claws are spaced circumferentially on the outer chuck base and can move relative to it, allowing them to simultaneously engage and grip the outer sand core. Because the positioning support base positions both the outer and inner sand cores, and the inner chuck grips the inner sand core with its multiple claws, the stability of the inner sand core's posture during transport is ensured. Similarly, the outer chuck grips the outer sand core with its multiple claws, ensuring the stability of the outer sand core's posture during transport. This, in turn, guarantees the consistency and stability of the core placement and reduces manual labor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the brake disc lower core tooling and the brake disc coated sand core according to an embodiment of the present invention.

[0017] Figure 2 yes Figure 1 A cross-sectional view of the brake disc lower core tooling and the brake disc coated sand core.

[0018] Figure 3 yes Figure 1 A schematic diagram of a brake disc coated with a sand core.

[0019] Figure 4 yes Figure 1 Exploded view of the brake disc coated sand core.

[0020] Figure 5 yes Figure 1 A schematic diagram of the transfer gripper of the brake disc lower core tooling.

[0021] Figure 6 yes Figure 1 A schematic diagram of the positioning support seat for the lower core tooling of the brake disc.

[0022] The annotations in the attached figures are explained as follows: 11-Outer sand core; 12-Inner sand core; 20-Positioning support seat; 21-Support component; 22-Positioning component; 23-Limiting post; 30-Transfer gripper; 31-Inner chuck; 32-Outer chuck; 33-Connector; 111-Shaft hole; 112-Positioning part; 113-First outer core; 114-Second outer core; 121-First inner core; 122-Second inner core; 211-Support platform; 212-Support 221-Positioning port; 231-Abutting part; 311-Inner card holder; 312-Inner claw; 313-First claw segment; 314-Second claw segment; 315-Connecting segment; 316-First finger; 317-Abutting part; 318-Inner drive cylinder; 321-Outer card holder; 322-Outer claw; 323-Extension segment; 324-Outer claw segment; 325-Abutting part; 326-Outer drive cylinder. Detailed Implementation

[0023] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0024] In the description of this utility model, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] When core-setting coated sand cores, manual core-setting is usually required. This method can easily lead to unstable splicing or fit between the sand cores, making it difficult to meet the required shape. This results in problems such as needing to scrape sand after core-setting or causing sand holes in the casting. Therefore, a brake disc core-setting fixture is proposed to solve the above problems.

[0027] The solution is further illustrated by the following examples: Figure 1 This is a schematic diagram of the brake disc lower core tooling and the brake disc coated sand core according to an embodiment of the present invention. Figure 2 yes Figure 1 A cross-sectional view of the brake disc lower core tooling and the brake disc coated sand core. Figure 3 yes Figure 1 A schematic diagram of a brake disc coated with a sand core. Figure 4 yes Figure 1 Exploded view of the brake disc coated sand core.

[0028] Please see Figure 1 The brake disc core lowering tool of this embodiment can be used to place the coated sand core of the brake disc into the sand box to complete the lowering of the coated sand core of the brake drum.

[0029] Combination Figure 2 , Figure 3 and Figure 4 In this embodiment, the coated sand core of the brake disc may include an outer sand core 11 and an inner sand core 12, and the inner sand core 12 is located in the shaft hole 111 of the outer sand core 11, so that after casting, a blank of the brake disc is obtained between the sand box, the outer sand core 11 and the inner sand core 12.

[0030] The outer sand core 11 may include a first outer core 113 and a second outer core 114, and the first outer core 113 and the second outer core 114 may be spliced ​​vertically to form the outer sand core 11. At the same time, the inner sand core 12 may include a first inner core 121 and a second inner core 122, and the first inner core 121 and the second inner core 122 may be spliced ​​vertically to form the inner sand core 12.

[0031] It should be noted that the shapes of the outer sand core 11 and the inner sand core 12 can be set according to the actual shape of the brake disc. For example, in some models of brake discs, the inner core can be made of a single, integral sand core to reduce the difficulty of core setting.

[0032] See Figure 1 and Figure 2 The brake disc lower core tooling in this embodiment may include a positioning support 20 and a transfer gripper 30.

[0033] The positioning support 20 can be used to support the outer sand core 11 and the inner sand core 12, thereby positioning and supporting the outer sand core 11 and the inner sand core 12, ensuring that the outer sand core 11 and the inner sand core 12 can maintain a specific posture, which facilitates core placement.

[0034] Simultaneously, the transfer gripper 30 can transfer the outer sand core 11 and the inner sand core 12 from the positioning support 20 to the sand box. Specifically, the transfer gripper 30 is mounted on a transfer device, enabling the transfer device to move the transfer gripper 30 between the positioning support 20 and the sand box to complete the core-setting process of the coated sand core; that is, the transfer gripper 30 is used to grasp and transfer the coated sand core. The transfer device can be configured as an industrial robotic arm, or as a translational and lifting mechanism capable of moving horizontally and vertically to move the transfer gripper 30 between the positioning support 20 and the core-setting position.

[0035] In this embodiment, the transfer gripper 30 includes an inner chuck 31, an outer chuck 32, and a connector 33. The inner chuck 31 is used to grip the inner sand core 12, and the outer chuck 32 is used to grip the outer sand core 11. The inner chuck 31 is connected to the outer chuck 32 via the connector 33, ensuring a stable connection between the inner chuck 31 and the outer chuck 32. Specifically, the inner chuck 31 and the outer chuck 32 are coaxially arranged so that the outer chuck 32 and the inner chuck 31 can grip both the outer sand core 11 and the inner sand core 12 simultaneously. This ensures that the transfer gripper 30 maintains the unchanged posture of the outer sand core 11 and the inner sand core 12 during the gripping and transfer process, thereby ensuring that the posture of the outer sand core 11 and the inner sand core 12 remains unchanged when they are lowered into the core.

[0036] It should be noted that when the outer sand core 11 and the inner sand core 12 are manually placed on the positioning support 20, they can overlap in the posture of the lower core, meaning that the posture of the outer sand core 11 and the inner sand core 12 on the positioning support 20 is the same as that of the outer sand core 11 and the inner sand core 12 inside the sand box. The transfer gripper 30, through the inner chuck 31 and the outer chuck 32 respectively, grasps the inner sand core 12 and the outer sand core 11, maintaining the stability of the posture of the outer sand core 11 and the inner sand core 12 during grasping and transfer. Therefore, after being transferred to the sand box, the outer sand core 11 and the inner sand core 12 also remain stable.

[0037] Furthermore, in actual operation, the outer sand core 11 and the inner sand core 12 are first placed on the positioning support 20, allowing the positioning support 20 to align and correct the outer sand core 11 and the inner sand core 12, ensuring that the relative positions of the outer sand core 11 and the inner sand core 12 remain stable. Then, the transfer gripper 30 grasps and transfers the outer sand core 11 and the inner sand core 12, avoiding direct manual handling and operation, thereby ensuring the consistency and stability of the coated sand core during core setting, guaranteeing the quality of core setting, and thus avoiding substandard core setting quality caused by human error during manual core setting.

[0038] Figure 5 yes Figure 1 A schematic diagram of the transfer gripper of the brake disc lower core tooling. Figure 6 yes Figure 1 A schematic diagram of the positioning support seat for the lower core tooling of the brake disc.

[0039] See Figure 1 and Figure 6 The positioning support 20 may be equipped with a support member 21, a positioning member 22 and multiple limiting posts 23.

[0040] The support member 21 is connected to the positioning support base 20, and the support member 21 is provided with a support platform 211 and a support groove 212, the support groove 212 being recessed downward from the support platform 211. Specifically, the support platform 211 is used to support the outer sand core 11, and the support groove 212 is adapted to the axial end of the inner sand core 12, so that the inner sand core 12 can be engaged in the support groove 212, and the support groove 212 can support the inner sand core 12.

[0041] In this embodiment, as Figure 2 As shown, the support platform 211 rests on the bottom edge of the first outer core 113, and the second outer core 114 is placed on top of the first outer core 113, so that the support platform 211 can support the entire outer sand core 11. The support slot 212 is used at the bottom edge of the first inner core 121, and the second inner core 122 overlaps the top of the first inner core 121, so that the support slot 212 can support the entire inner sand core 12.

[0042] Meanwhile, the positioning element 22 is connected to the positioning support 20 and corresponds to the outer peripheral side of the outer sand core 11. Specifically, the positioning element 22 extends in the vertical direction, and the top of the positioning element 22 is provided with a positioning opening 221. The positioning opening 221 can cooperate with the positioning part 112 on the outer sand core 11, so that the positioning element 22 can position the outer sand core 11 in the circumference.

[0043] like Figure 3 and Figure 4As shown, positioning parts 112 are provided on the periphery of the first outer core 113 and the second outer core 114. When the first outer core 113 and the second outer core 114 are placed on the support platform 211, the positioning parts 112 are engaged in the positioning opening 221 of the positioning member 22, so that the side wall of the positioning opening 221 can abut against the side wall of the positioning part 112 in the circumferential direction, thereby positioning and limiting the first outer core 113 and the second outer core 114 in the circumferential direction, and thus ensuring the circumferential posture of the first outer core 113 and the second outer core 114.

[0044] Furthermore, the limiting posts 23 are connected to the positioning support base 20, and multiple limiting posts 23 are spaced apart circumferentially along the positioning support base 20 and extend vertically. The part of the limiting post 23 that abuts against the outer sand core 11 is defined as the abutting part 231, and the shape of the abutting part 231 is adapted to the outer surface of the outer sand core 11. Specifically, the shape of the abutting part 231 is adapted to the shape of the outer surface of the outer sand core 11, so that 231 can fit against the outer wall of the outer sand core 11, thereby allowing multiple limiting posts 23 to simultaneously abut against the outer wall of the outer sand core 11 and limit the outer sand core 11, keeping the outer sand core 11 in a vertical position and preventing the outer sand core 11 from tilting.

[0045] In this embodiment, three limiting posts 23 are provided, and the three limiting posts 23 are symmetrically distributed around the circumference of the positioning support 20, so that the three limiting posts 23 can limit the outer sand core 11. Specifically, the included angle between two adjacent limiting posts 23 is 120°.

[0046] It should be noted that the support member 21, the positioning member 22 and the multiple limiting posts 23 can all be detachably connected to the positioning support seat 20. In actual use, the corresponding model of the support member 21, the positioning member 22 and the limiting post 23 can be selected according to the specific model of the coated sand core, so that the positioning support seat 20 can support and position the outer sand core 11 and the inner sand core 12.

[0047] See Figure 1 and Figure 5 The inner chuck 31 may include an inner chuck seat 311 and a plurality of inner chuck claws 312. The plurality of inner chuck claws 312 are mounted on the inner chuck seat 311 and spaced circumferentially along the inner chuck seat 311. Simultaneously, the inner chuck claws 312 are movable relative to the inner chuck seat 311, allowing the plurality of inner chuck claws 312 to simultaneously abut against or disengage from the inner sand core 12, thereby gripping or releasing the inner sand core 12.

[0048] In this embodiment, the inner jaw 312 may include a first jaw segment 313, a second jaw segment 314, and a connecting segment 315. Specifically, the connecting segment 315 is connected to the inner jaw seat 311, the first jaw segment 313 and the second jaw segment 314 are connected to the connecting segment 315, and the first jaw segment 313 and the second jaw segment 314 are spaced apart in the radial direction of the inner jaw seat 311. It should be noted that the first jaw segment 313, the second jaw segment 314, and the connecting segment 315 are integrally formed, and the first jaw segment 313, the second jaw segment 314, and the connecting segment 315 are generally similar to a "C" shape.

[0049] Meanwhile, the first claw segment 313 and the second claw segment 314 both extend along the axial direction of the inner clamping seat 311. When the inner clamping claw 312 moves along the radial direction of the inner clamping seat 311, the first claw segment 313 can abut against the inner wall of the inner sand core 12, or the second claw segment 314 can abut against the outer wall of the inner sand core 12, so that the multiple inner clamping claws 312 can grasp the inner sand core 12.

[0050] It should be noted that when the first claw segment 313 abuts against the inner wall of the inner sand core 12, the inner chuck 31 can grip the inner sand core 12. And when the second claw segment 314 abuts against the outer wall of the inner sand core 12, the inner chuck 31 can also grip the inner sand core 12.

[0051] Specifically, such as Figure 2 As shown, when the first claw segment 313 of the inner claw 312 abuts against the inner wall of the inner sand core 12, the inner chuck 31 can grip the inner sand core 12 through multiple inner claws 312. In this embodiment, the inner sand core 12 includes a first inner core 121 and a second inner core 122. When the first claw segment 313 abuts against the inner wall of the shaft hole of the first inner core 121, multiple inner claws 312 can grip and drive the first inner core 121 and the second inner core 122 to move. In some other embodiments, when the inner sand core 12 has only one structure or the inner sand core 12 does not have a shaft hole, the inner claws 312 can abut against the outer wall of the inner sand core 12 through the second claw segment 314, so that multiple inner claws 312 can grip the inner sand core 12.

[0052] Furthermore, a first finger 316 is provided on the side of the first claw segment 313 opposite to the connecting segment 315, that is, the free end of the first claw segment 313 is provided with the first finger 316. The first finger 316 is adapted to fit the inner wall of the inner sand core 12 so that the first finger 316 can fit against the inner wall of the inner sand core 12. Specifically, the first finger 316 is also provided with a protruding structure to increase the vertical support force between the first finger 316 and the inner sand core 12 when the first finger 316 abuts against the inner wall of the inner sand core 12, thereby increasing the stability of the first claw segment 313 when gripping the inner sand core 12, so that the inner chuck 31 can drive the inner sand core 12 to complete the transfer.

[0053] See Figure 2 and Figure 4 The inner chuck 31 may also include an abutment 317. The abutment 317 is mounted on the side of the second claw segment 314 away from the connecting segment 315, that is, the abutment 317 is detachably connected to the free end of the second claw segment 314, and the abutment 317 and the first finger 316 are disposed opposite each other. At the same time, the side of the abutment 317 facing the inner sand core 12 is adapted to the outer surface of the inner sand core 12, so that the abutment 317 can fit against the outer wall of the inner sand core 12 to increase the stability of the second claw segment 314 when gripping the inner sand core 12.

[0054] It should be noted that when dealing with different models of brake disc coated sand cores, the inner chuck 31 can grip and transfer different inner sand cores 12 by replacing the inner chuck 312 and the abutment 317 with different models.

[0055] Furthermore, in this embodiment, the inner chuck 31 is provided with three inner chuck claws 312, and the three inner chuck claws 312 are rotationally symmetrically arranged on the inner chuck base 311. Specifically, the included angle between two adjacent inner chuck claws 312 is 120°.

[0056] It should be noted that the inner chuck 31 may also include an inner drive cylinder 318. The inner drive cylinder 318 is connected between the inner jaw 312 and the inner jaw seat 311, so that the inner drive cylinder 318 can drive the inner jaw 312 to move relative to the inner jaw seat 311 along the radial direction of the inner jaw seat 311, thereby causing the inner jaw 312 to grip the inner sand core 12. Specifically, the inner drive cylinder 318 and the inner jaw 312 are arranged in a one-to-one correspondence.

[0057] In this embodiment, the connector 33 can be hollow, allowing the pneumatic or electrical wiring for connecting the internal drive cylinder 318 to be installed. Furthermore, three connectors 33 are provided, each corresponding to one of the three internal drive cylinders 318, so that each of the three internal drive cylinders 318 drives the three internal chucks 31 to move.

[0058] See Figure 1 , Figure 2 and Figure 5 The outer chuck 32 may include an outer chuck base 321 and a plurality of outer chuck claws 322. The plurality of outer chuck claws 322 are mounted on the outer chuck base 321 and spaced circumferentially along the outer chuck base 321. The outer chuck claws 322 are movable relative to each other, allowing the plurality of outer chuck claws 322 to simultaneously abut against or disengage from the outer sand core 11, thereby gripping or releasing the outer sand core 11.

[0059] In this embodiment, the outer claw 322 may include an extension section 323 and an outer claw section 324. The extension section 323 is connected to the outer clamping seat 321 and extends radially along the outer clamping seat 321. The outer claw section 324 is connected to the extension section 323 and extends axially along the outer clamping seat 321, such that the extension section 323 and the outer claw section 324 are arranged perpendicularly to each other. Simultaneously, when the extension section 323 moves radially along the outer clamping seat 321, the outer claw section 324 can abut against the outer wall of the outer sand core 11, enabling the multiple outer claws 322 to grasp the outer sand core 11.

[0060] Meanwhile, the outer chuck 32 may also include a stop member 325. The stop member 325 is installed on the side of the outer claw segment 324 opposite to the extension segment 323, that is, the stop member 325 is detachably connected to the free end of the outer claw segment 324. Furthermore, the side of the stop member 325 facing the outer sand core 11 is adapted to the outer surface of the outer sand core 11, so that the stop member 325 can fit against the outer wall of the outer sand core 11 to increase the stability of the outer claw segment 324 when gripping the outer sand core 11.

[0061] It should be noted that when dealing with different models of brake disc coated sand cores, different outer chucks 322 and abutment parts 325 can be replaced to make the outer chuck 32 adapt to different outer sand cores 11, thereby gripping and transporting the outer sand cores 11.

[0062] In addition, the outer chuck 32 may also include an outer drive cylinder 326, which is connected between the outer chuck claw 322 and the outer chuck seat 321 to drive the outer chuck claw 322 to move relative to the outer chuck seat 321 in the radial direction of the outer chuck seat 321. Specifically, the outer drive cylinder 326 and the outer chuck claw 322 are arranged in a one-to-one correspondence.

[0063] It should be noted that the transfer gripper 30 may also include a camera and an infrared sensor for identification and positioning, enabling the transfer gripper 30 to accurately grasp and insert the outer sand core 11 and the inner sand core 12.

[0064] In summary, the positioning support 20 supports the outer sand core 11 and the inner sand core 12, and positions them to maintain a specific posture. Simultaneously, the transfer gripper 30 can transfer the outer sand core 11 and the inner sand core 12 from the positioning support 20 into the sand box. The transfer gripper 30 includes an inner chuck 31 and an outer chuck 32, with the inner chuck 31 connected to the axial end of the outer chuck 32. The inner chuck 31 can grip the inner sand core 12, and the outer chuck 32 can grip the outer sand core 11, thereby moving the coated sand core from the positioning support 20 into the sand box to complete the core-setting process.

[0065] Furthermore, the inner chuck 31 includes an inner chuck seat 311 and a plurality of inner chuck claws 312. The plurality of inner chuck claws 312 are arranged circumferentially on the inner chuck seat 311 and are movable relative to the inner chuck seat 311, thereby enabling the plurality of inner chuck claws 312 to simultaneously abut and grip the inner sand core 12. The outer chuck 32 includes an outer chuck seat 321 and a plurality of outer chuck claws 322. The plurality of outer chuck claws 322 are arranged circumferentially on the outer chuck seat 321 and are movable relative to the outer chuck seat 321, thereby enabling the plurality of outer chuck claws 322 to simultaneously abut and grip the outer sand core 11.

[0066] Since the positioning support 20 can position the outer sand core 11 and the inner sand core 12, and the inner chuck 31 can grip the inner sand core 12 with multiple inner jaws 312, it can ensure the stability of the posture of the inner sand core 12 during the transfer process. Meanwhile, the outer chuck 32 can grip the outer sand core 11 with multiple outer jaws 322, which can ensure the stability of the posture of the outer sand core 11 during the transfer process. This ensures the consistency and stability of the cores and reduces manual labor.

[0067] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A brake disc lower core tooling, characterized in that, The brake disc lower core tooling is used to place the coated sand core of the brake disc into the sand box. The coated sand core includes an outer sand core and an inner sand core, and the inner sand core is located in the shaft hole of the outer sand core. The brake disc lower core tooling includes: A positioning support base is used to support the outer sand core and the inner sand core, and to position the outer sand core and the inner sand core; and The transfer gripper is capable of transferring the outer sand core and the inner sand core from the positioning support to the sand box. The transfer gripper includes an inner chuck and an outer chuck, with the inner chuck connected to the axial end of the outer chuck. The inner chuck includes an inner chuck seat and multiple inner chuck claws. The multiple inner chuck claws are mounted on the inner chuck seat and spaced apart circumferentially along the inner chuck seat. The inner chuck claws are movable relative to the inner chuck seat, allowing them to simultaneously abut against or disengage from the inner sand core to grasp or release the inner sand core. The outer chuck includes an outer chuck seat and multiple outer chuck claws. The multiple outer chuck claws are mounted on the outer chuck seat and spaced apart circumferentially along the outer chuck seat. The outer chuck claws are movable relative to the outer chuck claws, allowing them to simultaneously abut against or disengage from the outer sand core to grasp or release the outer sand core.

2. The brake disc lower core tooling according to claim 1, characterized in that, The inner chuck includes a first chuck segment, a second chuck segment, and a connecting segment. The connecting segment is connected to the inner chuck seat. The first chuck segment and the second chuck segment are connected to the connecting segment. The first chuck segment and the second chuck segment are spaced apart in the radial direction of the inner chuck seat. Both the first chuck segment and the second chuck segment extend in the axial direction of the inner chuck seat. When the inner chuck moves in the radial direction of the inner chuck seat, the first chuck segment can abut against the inner wall of the inner sand core, or the second chuck segment can abut against the outer wall of the inner sand core.

3. The brake disc lower core tooling according to claim 2, characterized in that, The first claw segment has a first finger on the side opposite to the connecting segment. The first finger is adapted to the inner wall of the inner sand core so that the first finger can fit against the inner wall of the inner sand core.

4. The brake disc lower core tooling according to claim 2, characterized in that, The inner chuck also includes an abutment, which is installed on the side of the second claw segment away from the connecting segment. The side of the abutment facing the inner sand core is adapted to the outer surface of the inner sand core, so that the abutment can fit against the outer wall of the inner sand core.

5. The brake disc lower core tooling according to claim 1, characterized in that, The outer jaw includes an extension section and an outer jaw section. The extension section is connected to the outer jaw base and extends in the radial direction of the outer jaw base. The outer jaw section is connected to the extension section and extends in the axial direction of the outer jaw base. When the extension section moves in the radial direction of the outer jaw base, the outer jaw section can abut against the outer wall of the outer sand core.

6. The brake disc lower core tooling according to claim 5, characterized in that, The outer chuck also includes a stop member, which is installed on the side of the outer claw segment away from the extension segment. The side of the stop member facing the outer sand core is adapted to the outer surface of the outer sand core, so that the stop member can fit against the outer wall of the outer sand core.

7. The brake disc lower core tooling according to claim 1, characterized in that, The positioning support is provided with a support member, which has a support platform and a support groove recessed downward from the support platform. The support platform is used to support the outer sand core, and the support groove is adapted to the axial end of the inner sand core, so that the inner sand core can be engaged in the support groove and the support groove can support the inner sand core.

8. The brake disc lower core tooling according to claim 1, characterized in that, The positioning support is provided with a positioning element that extends vertically. The top of the positioning element is provided with a positioning opening that can cooperate with the positioning part on the outer sand core to position the outer sand core circumferentially.

9. The brake disc lower core tooling according to claim 1, characterized in that, The positioning support is provided with a plurality of limiting posts, which are spaced apart circumferentially along the positioning support and extend vertically. The part of the limiting post that abuts against the outer sand core is defined as the abutting part. The shape of the abutting part is adapted to the outer surface of the outer sand core so that the plurality of limiting posts can simultaneously abut against the outer side wall of the outer sand core and limit the outer sand core.

10. The brake disc lower core tooling according to claim 1, characterized in that, The inner chuck further includes an inner drive cylinder connected between the inner jaw and the inner chuck seat to drive the inner jaw to move relative to the inner chuck seat in the radial direction of the inner chuck seat. The outer chuck further includes an outer drive cylinder connected between the outer jaw and the outer chuck seat to drive the outer jaw to move relative to the outer chuck seat in the radial direction of the outer chuck seat.

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