A core assembly anti-dumping fixture and core assembly component

Abstract

The utility model discloses a core assembly anti-dumping clamp and a core assembly component, wherein the core assembly anti-dumping clamp is contacted and positioned with a sand core through a plurality of air bags and a flexible protection block pressed by a spring, and the spring is compressed at this time; when it is necessary to separate the core assembly anti-dumping clamp from the sand core, the air bag is separated first; and when the air bag is separated, the flexible protection block is still in contact with the sand core under the action of the spring, so the stability of the sand core can be maintained with the assistance of the flexible protection block, and after the sand core is completely separated from the air bag, the flexible protection block is separated from the sand core, thereby maintaining the stability of the sand core assembly on the core assembly platform.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core clamps. Background Art

[0002] The current horizontal core assembly platform is tilted to prevent the sand core from tipping over. For example, the sand core assembly jig disclosed in the Chinese utility model patent with announcement number CN202963379U is an inclined core assembly platform for placing sand core assemblies. Each sand core is stacked on the core assembly platform from low to high to avoid slipping during core assembly. Generally, a core assembly fixture is used in conjunction with the core assembly platform to squeeze all the sand cores diagonally downward on the outer surface of the highest sand core to facilitate subsequent core assembly fixing operations. However, when the core assembly fixture is withdrawn after the core assembly is completed, the mechanical hand shakes or the core assembly fixture deforms, which will cause the fixture to tilt or drop the sand core from the core assembly platform, causing damage to the sand core.

[0003] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0004] In order to solve the problems generated by the prior art, the utility model provides a core assembly anti-dumping clamp, which is used to maintain the stability of the sand core assembly on the core assembly platform when the clamp exits the core assembly platform after the core assembly is completed.

[0005] The utility model also provides a core assembly component including the core assembly anti-dumping fixture, the purpose of which is to maintain the stability of the sand core assembly on the core assembly platform.

[0006] In order to achieve the above-mentioned purpose, the core assembly anti-dumping fixture of the utility model can adopt the following technical solutions:

[0007] A core assembly anti-dumping fixture comprises a side plate, a plurality of cylinders mounted on the inner surface of the side plate, a spring located in the middle of the side plate, and a flexible protection block located at the end of the spring; the extension direction of the plurality of cylinders is parallel to the extension direction of the spring and the plurality of cylinders are arranged around the spring, and an air bag is arranged at the end of each cylinder; when the spring is in a free state, the distance between the flexible protection block and the side plate is greater than the distance between the air bag and the side plate.

[0008] Furthermore, the number of the cylinders is three and they are arranged around the spring at circumferential angles that differ by 120°.

[0009] Furthermore, the airbag is arranged corresponding to the position of the airbag hole on the sand core abutted by the core group anti-dumping clamp.

[0010] Beneficial effect: the core assembly anti-dumping clamp provided by the utility model is contacted and positioned with the sand core by a plurality of air bags and a flexible protection block supported by a spring, and the spring is compressed at this time; when it is necessary to separate the core assembly anti-dumping clamp from the sand core, the air bag is separated first; and when the air bag is separated, the flexible protection block is still in contact with the sand core due to the action of the spring, so the sand core can be assisted by the flexible protection block to maintain stability, and after the sand core is completely separated from the air bag, the flexible protection block is separated from the sand core, thereby maintaining the stability of the sand core assembly on the core assembly platform.

[0011] The core assembly of the utility model can adopt the following technical solutions:

[0012] A core assembly component including the core assembly anti-dumping fixture also includes a core assembly platform with one end inclined; the core assembly platform is used to carry the sand core to be assembled, and the core assembly anti-dumping fixture is against the outside of the sand core and fixed through an airbag and an airbag hole arranged on the outside of the sand core.

[0013] Furthermore, it also includes a robot, and the core assembly anti-dumping fixture serves as the end execution end of the robot.

[0014] Beneficial effect: Compared with the prior art, the core assembly provided by the utility model places the sand core to be assembled on the core assembly platform, transfers the sand core to the core assembly platform through the cooperation between the core assembly platform and the core assembly anti-dumping clamp, and maintains the stability of the sand core on the core assembly platform through the core assembly anti-dumping clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the state of the core assembly anti-dumping clamp in the utility model when clamping the sand core;

[0016] Figure 2 It is a schematic diagram of the state when the sand core is transferred to the core assembly platform through the core assembly anti-dumping fixture;

[0017] Figure 3 This is a schematic diagram of the state when the sand core has been placed on the core assembly platform;

[0018] Figure 4 It is a schematic diagram of the state when the core assembly anti-dumping fixture is separated from the sand core. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the following specific implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0020] See also Figure 1As shown, the utility model discloses a core assembly anti-dumping clamp, comprising a side plate 1, a plurality of cylinders 2 installed on the inner surface of the side plate 1, a spring 3 located in the middle of the side plate 1, and a flexible protection block 4 located at the end of the spring 3. The extension direction of the plurality of cylinders 2 is parallel to the extension direction of the spring 3 and the plurality of cylinders 2 are arranged around the spring 3, and an airbag 5 is provided at the end of each cylinder 2. In this embodiment, the spring 3 is located at the center of the side plate 1, and the cylinder 2 has three airbags 2 arranged around the spring 3 at circumferential angles that differ by 120°. The airbag 5 is arranged corresponding to the position of the airbag hole on the sand core that is abutted by the core assembly anti-dumping clamp. In the core assembly anti-dumping clamp, when the spring 3 is in a free state, the distance between the flexible protection block 4 and the side plate 1 is greater than the distance between the airbag 5 and the side plate 1, and the length of the spring 3 is greater than the length of the cylinder 2. Figure 1 The figure shows a schematic diagram of a core assembly anti-dumping fixture clamping a side core 6. The airbag 5 of the core assembly anti-dumping fixture is inserted into the airbag hole on the side of the side core 6, and the airbag 5 is inflated by the cylinder 2 so that the airbag 5 expands in the airbag hole and is fixed to the airbag hole; at this time, the flexible protection block 4 abuts against the side of the side core 6 and compresses the spring 3. Figure 2 In the figure, a schematic diagram of the state when the side core 6 is being transferred to the core assembly platform 7 by the core assembly anti-dumping clamp is shown, in which it can be seen that the crankshaft core 8 that has been transferred to the core assembly platform 7 also has the airbag hole 9 that cooperates with the airbag 5, that is, each sand core in the sand core group is provided with the airbag hole 9 that cooperates with the airbag 5, and the core assembly anti-dumping clamp can clamp each sand core.

[0021] Please combine Figures 2 to 4 As shown above Figure 1 The core assembly anti-dumping fixture is a part of a core assembly, and the core assembly also includes the inclined core assembly platform 7 for carrying the sand core. The core assembly can also include a manipulator (not shown), and the core assembly anti-dumping fixture serves as the end execution end of the manipulator, and the core assembly anti-dumping fixture can be clamped and matched with the sand core by the manipulator and transferred.

[0022] When it is necessary to separate the core assembly anti-dumping fixture from the sand core, Figure 4 As shown, the airbag 5 is deflated so that the airbag 5 is first detached from the airbag hole of the side core 6; when the airbag 5 is detached, the flexible protection block 4 is still in contact with the side core 6 due to the action of the spring 3, so the side core 6 can be maintained stable with the assistance of the flexible protection block 4. After the side core 6 is completely detached from the airbag 5, the flexible protection block 4 is detached from the side core 6, thereby maintaining the stability of the sand core group on the core assembly platform.

Claims

1. A core assembly anti-dumping fixture, characterized in that: It includes a side plate, a plurality of cylinders installed on the inner surface of the side plate, a spring located in the middle of the side plate, and a flexible protection block located at the end of the spring; the extension direction of the plurality of cylinders is parallel to the extension direction of the spring and the plurality of cylinders are arranged around the spring, and an air bag is arranged at the end of each cylinder; when the spring is in a free state, the distance between the flexible protection block and the side plate is greater than the distance between the air bag and the side plate.

2. The core assembly anti-dumping fixture according to claim 1, characterized in that: The number of the cylinders is three and they are arranged around the spring at circumferential angles that differ by 120°.

3. The core assembly anti-dumping fixture according to claim 1 or 2, characterized in that: The airbag is arranged corresponding to the position of the airbag hole on the sand core abutted by the core group anti-dumping clamp.

4. A core assembly comprising the core assembly anti-dumping fixture according to claim 1 or 2, characterized in that: It also includes a core assembly platform with an inclined end; the core assembly platform is used to carry the sand core to be assembled, and the core assembly anti-dumping clamp is against the outside of the sand core and is fixed through the airbag and the airbag hole set on the outside of the sand core.

5. The core assembly according to claim 4, characterized in that: It also includes a robot, and the core assembly anti-dumping fixture serves as the end execution end of the robot.

Images