A kind of engineering machinery hydraulic casting sand core fast assembly jig

Abstract

The utility model relates to the technical field of sand core assembly, and put forward: a kind of engineering machinery hydraulic casting sand core fast assembly fixture, it include: assembly station and symmetrically arranged on the sub-sand core one and sub-sand core two of assembly station;Positioning rack one for supporting and positioning sub-sand core one is fixedly installed on the top of assembly station;By positioning rack one and positioning rack two, so that sub-sand core one and sub-sand core two can stably place on assembly station, then promote sliding assembly to one side, to make connecting piece can stably approach sub-sand core one, also make the screw rod of connecting piece one end can be quickly and stably inserted into the connecting port on sub-sand core two, then screw nut is screwed on the screw rod of connecting piece, to make sub-sand core one and sub-sand core two can stably connect and lock together, to reduce time consumption, accelerate production rhythm, simultaneously also make the relative position of sand core in space accurate and correct, effectively guarantee the geometric precision of overall sand core group.

Description

Technical Field

[0001] This utility model relates to the field of sand core assembly technology, specifically to a quick assembly fixture for sand cores of hydraulic castings for engineering machinery. Background Technology

[0002] Core sand is a mixed material used in casting to manufacture sand cores. It belongs to the category of industrial products. Its main components include foundry sand, molding sand binder, hardener and additives. According to the binder, it can be divided into clay core sand, water glass core sand, oil core sand, resin core sand and resin core sand.

[0003] Existing sand cores cannot be quickly positioned and aligned during assembly, resulting in long assembly times and slower production cycles. Furthermore, misalignment and displacement are prone to occur during assembly, affecting the dimensional accuracy and geometry of the final casting. Therefore, a rapid assembly fixture for hydraulic casting sand cores for engineering machinery is needed. Utility Model Content

[0004] This utility model proposes a quick assembly fixture for sand cores of hydraulic castings for engineering machinery, which solves the problems in related technologies where sand cores cannot be quickly positioned and opposed, resulting in long time consumption, slow production cycle, and problems such as misalignment and displacement during assembly, which affect the dimensional accuracy and geometry of the final casting.

[0005] The technical solution of this utility model is as follows: A quick assembly fixture for hydraulic casting sand cores of engineering machinery, comprising: An assembly platform and two sub-sand cores symmetrically arranged on the assembly platform; A positioning frame 1 is fixedly installed on the top of the assembly table to support and position the sub-sand core 1; A connector embedded in the sub-sand core; A sliding assembly is installed on the assembly platform to drive the second sub-sand core to slide left and right. A positioning bracket 2 is provided on the sliding assembly for supporting and positioning the sub-sand core 2, and the screw end of the connector passes through the sub-sand core 2 and is locked and fixed with a nut; A limiting component is provided on the assembly table for limiting the sliding component; A transfer assembly is installed on the assembly platform to move the first sub-sand core and the second sub-sand core. The transfer assembly is fixedly connected to an external transfer robot. And two positioning components symmetrically arranged on the assembly table for limiting and positioning the sliding component.

[0006] Preferably, the sliding assembly includes two linear slide rails symmetrically fixedly installed on the top of the assembly table, and a mounting plate is slidably connected to the two linear slide rails by a slider, and the positioning and placement bracket is fixedly installed on the mounting plate.

[0007] Preferably, the limiting component includes a first limiting block and a second limiting block arranged symmetrically on the left and right, and both the first limiting block and the second limiting block are fixedly installed on the top of the assembly table, with the first limiting block and the second limiting block located between the two linear slide rails. A third limiting block is fixedly installed at the bottom of the mounting plate, and the third limiting block is located between the first limiting block and the second limiting block.

[0008] Preferably, rubber pads are fixedly installed on both sides of the third limiting block.

[0009] Preferably, the positioning component includes an inverted T-shaped seat fixedly installed on the top of the assembly table, a fixing post installed on the inverted T-shaped seat, a limiting ball and a spring respectively provided on the inner side of the fixing post, and the spring is located between the fixing post and the limiting ball. A positioning block is fixedly installed on the top of the mounting plate, and the limiting ball is engaged with the limiting groove on the positioning block.

[0010] Preferably, the transfer assembly includes a mounting frame fixedly mounted on an external transfer robot. Two cylinders are symmetrically fixedly mounted on the top of the mounting frame, and two pairs of sliding frames are symmetrically fixedly mounted on the top of the mounting frame. Each pair of sliding frames is provided with a gripper, and the output end of the cylinder is fixedly connected to the gripper.

[0011] Preferably, two positioning posts are symmetrically fixedly installed on the bottom wall of the mounting frame, and the two positioning posts are respectively located above the first sub-sand core and the second sub-sand core.

[0012] The working principle and beneficial effects of this utility model are as follows: 1. By using positioning bracket one and positioning bracket two, sub-sand core one and sub-sand core two can be stably placed on the assembly table. Then, push the sliding component to one side, so that the connector can stably move closer to sub-sand core one, and at the same time, the screw at one end of the connector can be quickly and stably inserted into the connection port on sub-sand core two. Then, tighten the nut on the screw of the connector, so that sub-sand core one and sub-sand core two can be stably connected and locked together, thereby reducing time consumption, speeding up the production cycle, and ensuring that the relative position of the sand core in space is accurate, effectively guaranteeing the geometric accuracy of the overall sand core assembly.

[0013] 2. The assembled sub-sand cores 1 and 2 can be moved into the sand box by the transfer components on the external transfer robot, avoiding manual handling of the heavy and fragile sand core assembly, and greatly reducing labor intensity and risk of damage. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This utility model provides a structural schematic diagram of a positioning and placement frame. Figure 3 This utility model provides a cross-sectional structural diagram of the sub-sand core; Figure 4 A schematic diagram of the limiting component is provided for this utility model; Figure 5 A schematic diagram of the transfer assembly is provided for this utility model; Figure 6 A schematic diagram of the positioning component is provided for this utility model; Figure 7 A structural schematic diagram of the connector is provided for this utility model.

[0016] In the diagram: 1. Assembly table; 2. Positioning and placement frame 1; 3. Sub-sand core 1; 4. Connecting parts; 5. Sliding assembly; 51. Linear guide rail; 52. Mounting plate; 6. Positioning and placement frame two; 7. Sub-sand core two; 8. Limiting component; 81. First limiting block; 82. Second limiting block; 83. Third limiting block; 9. Transfer assembly; 91. Mounting bracket; 92. Cylinder; 93. Sliding bracket; 94. Gripper; 10. Positioning component; 101. Inverted T-shaped seat; 102. Fixing post; 103. Limiting ball; 104. Positioning block; 11. Positioning post. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0018] Example 1

[0019] Please see Figure 1 - Figure 7 A quick assembly fixture for hydraulic casting sand cores of engineering machinery, comprising: Assembly platform 1 and sub-sand core 3 and sub-sand core 7 symmetrically arranged on assembly platform 1; A positioning bracket 2 is fixedly installed on the top of the assembly table 1 to support and position the sub-sand core 3; Connector 4 embedded in sub-sand core 3; A sliding component 5 is installed on the assembly table 1 to drive the sub-sand core 7 to slide left and right; A positioning bracket 26 is set on the sliding component 5 to support and position the sub-sand core 2 7, and the screw end of the connector 4 passes through the sub-sand core 2 7 and is locked and fixed with a nut; A transfer assembly 9 is installed on the assembly table 1 to move sub-sand core 3 and sub-sand core 7. The transfer assembly 9 is fixedly connected to an external transfer robot. And two positioning components 10 symmetrically arranged on the assembly table 1 for limiting and positioning the sliding component 5.

[0020] This utility model provides a quick assembly fixture for hydraulic casting sand cores in engineering machinery. In use, sub-sand core 3 and sub-sand core 7 are placed on positioning rack 1 2 and positioning rack 2 6 respectively, allowing them to quickly align. Then, the sliding component 5 on the assembly table 1 is pushed to one side, allowing the connecting component 4 to quickly and stably move towards sub-sand core 3. Simultaneously, the screw at one end of the connecting component 4 can quickly and stably insert into the connection port on sub-sand core 7. Then, the nut is tightened onto the screw of the connecting component 4, thus stably connecting and locking sub-sand core 3 and sub-sand core 7 together. This reduces time consumption, speeds up production, and ensures accurate relative positioning of the sand cores in space, effectively guaranteeing the geometric precision of the overall sand core assembly. Finally, the assembled sub-sand core 3 and sub-sand core 7 can be moved into the sand box using the transfer component 9 on an external transfer robot. This avoids manual handling of heavy and fragile sand core assemblies, greatly reducing labor intensity and the risk of breakage.

[0021] Furthermore, the sliding assembly 5 includes two linear slide rails 51 symmetrically fixedly installed on the top of the assembly table 1. A mounting plate 52 is slidably connected to the two linear slide rails 51 through a slider, and the positioning and placement bracket 6 is fixedly installed on the mounting plate 52.

[0022] Specifically, the linear slide rail 51 allows the mounting plate 52 to slide on the assembly table 1, enabling the connector 4 to quickly and stably approach the sub-sand core 3, while also allowing the screw at one end of the connector 4 to quickly and stably insert into the connection port on the sub-sand core 7, thereby enabling the sub-sand core 3 and the sub-sand core 7 to be quickly assembled.

[0023] Furthermore, the positioning component 10 includes an inverted T-shaped seat 101 fixedly installed on the top of the assembly table 1. A fixing post 102 is installed on the inverted T-shaped seat 101. A limit ball 103 and a spring are respectively provided on the inner side of the fixing post 102, and the spring is located between the fixing post 102 and the limit ball 103. A positioning block 104 is fixedly installed on the top of the mounting plate 52, and the limit ball 103 is engaged with the limit groove on the positioning block 104.

[0024] Specifically, when the mounting plate 52 moves, it will simultaneously drive the positioning block 104 to move. When the positioning block 104 moves close to the fixing post 102, it will first squeeze the limiting ball 103 to retract it into the fixing post 102. Then, when the limiting groove on the positioning block 104 is level with the fixing post 102, the spring in the fixing post 102 that is deformed by compression will push the limiting ball 103 to move and lock it into the limiting groove on the positioning block 104. This will limit and fix the mounting plate 52 and the sub-sand core 7, preventing the mounting plate 52 and the sub-sand core 7 from moving when the nut is tightened on the connector 4.

[0025] Furthermore, the transfer assembly 9 includes a mounting frame 91 fixedly mounted on an external transfer robot. Two cylinders 92 are symmetrically fixedly mounted on the top of the mounting frame 91, and two pairs of sliding frames 93 are symmetrically fixedly mounted on the top of the mounting frame 91. Each pair of sliding frames 93 is provided with a gripper 94, and the output end of the cylinder 92 is fixedly connected to the gripper 94.

[0026] Specifically, the retracting cylinder 92 drives the gripper 94, which, with the cooperation of the sliding frame 93, can move stably and hold sub-sand core 1 3 and sub-sand core 2 7. Then, when the external transfer robot moves the mounting frame 91, the mounting frame 91, through the sliding frame 93 and the gripper 94, can move the assembled sub-sand core 1 3 and sub-sand core 2 7 into the sand box, avoiding manual handling of the heavy and fragile sand core assembly, and greatly reducing labor intensity and the risk of damage.

[0027] Furthermore, two positioning posts 11 are symmetrically fixedly installed on the bottom wall of the mounting frame 91, and the two positioning posts 11 are located above sub-sand core 3 and sub-sand core 7 respectively.

[0028] Specifically, the positioning post 11 can limit the mounting frame 91, so that while the gripper 94 clamps the sub-sand core 3 and the sub-sand core 7, the transverse section at its corner can contact the inner sidewall of the sub-sand core 3 and the sub-sand core 7.

[0029] Example 2

[0030] Based on Embodiment 1, in this embodiment: a limiting component 8 is provided on the assembly table 1 for limiting the sliding component 5. The limiting component 8 includes a first limiting block 81 and a second limiting block 82 arranged symmetrically on the left and right sides. The first limiting block 81 and the second limiting block 82 are both fixedly installed on the top of the assembly table 1. The first limiting block 81 and the second limiting block 82 are located in the middle of the two linear slide rails 51. A third limiting block 83 is fixedly installed on the bottom of the mounting plate 52, and the third limiting block 83 is located in the middle of the first limiting block 81 and the second limiting block 82.

[0031] The technical solution provided in this embodiment is as follows: when the third limiting block 83 contacts the second limiting block 82, it can limit the installation plate 52 and the second sub-sand core 7 that are moving towards the first sub-sand core 3, so as to prevent the second sub-sand core 7 from moving too far and causing the connecting piece 4 to damage the second sub-sand core 7. Then, when the third limiting block 83 contacts the first limiting block 81, it can limit the installation plate 52, so as to prevent the installation plate 52 from sliding off the linear slide rail 51.

[0032] Furthermore, rubber pads are fixedly installed on both sides of the third limiting block 83.

[0033] Specifically, the rubber pads can buffer and dampen the shock when the third limiting block 83 comes into contact with the first limiting block 81 and the second limiting block 82.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick assembly fixture for hydraulic casting sand cores of engineering machinery, characterized in that, include: Assembly platform (1) and sub-sand core one (3) and sub-sand core two (7) symmetrically arranged on the assembly platform (1); A positioning frame (2) is fixedly installed on the top of the assembly table (1) for supporting and positioning the sub-sand core (3). The connector (4) is embedded in the sub-sand core (3); A sliding component (5) is installed on the assembly platform (1) to drive the sub-sand core (7) to slide left and right. A positioning bracket 2 (6) is provided on the sliding component (5) for supporting and positioning the sub-sand core 2 (7), and the screw end of the connector (4) passes through the sub-sand core 2 (7) and is locked and fixed with a nut; A limiting component (8) is provided on the assembly table (1) for limiting the sliding component (5). A transfer assembly (9) is installed on the assembly table (1) to move the first sub-sand core (3) and the second sub-sand core (7). The transfer assembly (9) is fixedly connected to an external transfer robot. And two positioning components (10) symmetrically arranged on the assembly table (1) for limiting and positioning the sliding component (5).

2. The quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 1, characterized in that: The sliding component (5) includes two linear slide rails (51) symmetrically fixedly installed on the top of the assembly table (1). A mounting plate (52) is slidably connected to the two linear slide rails (51) by a slider, and the positioning and placement frame (6) is fixedly installed on the mounting plate (52).

3. The quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 2, characterized in that: The limiting component (8) includes a first limiting block (81) and a second limiting block (82) arranged symmetrically on the left and right sides. The first limiting block (81) and the second limiting block (82) are both fixedly installed on the top of the assembly table (1). The first limiting block (81) and the second limiting block (82) are located in the middle of the two linear slide rails (51). A third limiting block (83) is fixedly installed at the bottom of the mounting plate (52), and the third limiting block (83) is located between the first limiting block (81) and the second limiting block (82).

4. A quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 3, characterized in that: Rubber pads are fixedly installed on both sides of the third limiting block (83).

5. A quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 3, characterized in that: The positioning component (10) includes an inverted T-shaped seat (101) fixedly installed on the top of the assembly table (1). A fixing post (102) is installed on the inverted T-shaped seat (101). A limiting ball (103) and a spring are respectively provided on the inner side of the fixing post (102), and the spring is located between the fixing post (102) and the limiting ball (103). A positioning block (104) is fixedly installed on the top of the mounting plate (52), and the limiting ball (103) is engaged with the limiting groove on the positioning block (104).

6. A quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 1, characterized in that: The transfer assembly (9) includes a mounting frame (91) fixedly mounted on an external transfer robot. Two cylinders (92) are symmetrically fixedly mounted on the top of the mounting frame (91). Two pairs of sliding frames (93) are symmetrically fixedly mounted on the top of the mounting frame (91). Each pair of sliding frames (93) is provided with a gripper (94), and the output end of the cylinder (92) is fixedly connected to the gripper (94).

7. A quick assembly fixture for hydraulic casting sand cores of engineering machinery according to claim 6, characterized in that: The mounting bracket (91) has two positioning posts (11) symmetrically fixedly installed on its bottom wall, and the two positioning posts (11) are located above the sub-sand core one (3) and the sub-sand core two (7), respectively.

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