Hydraulic casting sand core assembling jig with convenient discharging function

Abstract

The utility model relates to sand core assembly technical field proposes a kind of hydraulic casting sand core assembly jig of convenient blanking, comprising: positioning table and moving table;The top of positioning table is fixedly installed with positioning piece, the top of positioning table is fixedly provided with sliding assembly unit, for sliding assembly sand core, the top of moving table is fixedly installed with support frame, the inside of support frame is fixed with lifting unit, the side of support frame is fixedly provided with clamping unit by lifting unit, for clamping sand core;The clamping unit includes fixed frame, hydraulic rod, one support piece, limit shaft, fixed sleeve, clamping jaw and positioning column. Sand core can be clamped by hydraulic rod and clamping jaw, prevent sand core loose when blanking, by traction rope can be directly pulled up entire clamping unit by sliding block, make clamping unit and sand core whole lift and separate from positioning table to prevent sand core collision to the part on positioning table.

Description

Technical Field

[0001] This utility model belongs to the field of sand core assembly technology, specifically relating to a hydraulic casting sand core assembly fixture that facilitates material unloading. Background Technology

[0002] In the casting production of hydraulic castings, sand core assembly is a crucial step that determines the dimensional accuracy and surface quality of the casting's internal cavity. Traditional sand core assembly methods typically rely on the experience and skills of operators, using general-purpose fixtures or simple supports for positioning and assembly. For hydraulic castings with complex structures and multiple sand core combinations (such as valve bodies and pump housings), existing assembly methods have significant shortcomings: First, the spatial relative positions of multiple sand cores are difficult to determine and maintain accurately and quickly, easily leading to uneven casting wall thickness or dimensional deviations due to accumulated positioning errors; second, during the assembly process, especially in the blanking stage, there is a lack of stable support and transfer measures for the assembled sand cores as a whole, often resulting in local damage or relative displacement of the sand cores due to operational vibrations or impacts, affecting the accuracy of subsequent core placement and box assembly, and increasing the scrap rate; in addition, general-purpose fixtures are often cumbersome to adjust, have poor adaptability to sand cores of different casting models, and require long tooling preparation time during production changeovers, affecting production efficiency.

[0003] Therefore, the industry urgently needs a special fixture that can achieve rapid and accurate positioning and clamping, and can conveniently and stably drop and transfer the sand core assembly after assembly, in order to improve the automation level, accuracy stability and operation efficiency of hydraulic casting sand core assembly. Utility Model Content

[0004] This utility model proposes a hydraulic casting sand core assembly fixture that facilitates material unloading, solving the problem that existing sand core assembly fixtures in related technologies are prone to causing local damage or relative displacement of the sand core during the unloading stage.

[0005] The technical solution of this utility model is as follows: a hydraulic casting sand core assembly fixture for easy material unloading, comprising: a positioning table and a moving table; A positioning component is fixedly installed on the top of the positioning platform. A sliding assembly unit is fixedly installed on the top of the positioning platform for sliding assembly of the sand core. A support frame is fixedly installed on the top of the moving platform. A lifting unit is fixedly installed inside the support frame. A clamping unit is fixedly installed on one side of the support frame through the lifting unit for clamping the sand core. The clamping unit includes a fixed frame, a hydraulic rod, a first support component, a limiting shaft, a fixed sleeve, clamping claws, and a positioning post.

[0006] Preferably, the fixing frame is fixedly installed on one side of the lifting unit, the hydraulic rod is fixedly installed on the top of the fixing frame, the first support member is fixedly installed on the top of the fixing frame, the limiting shaft is fixedly installed inside the first support member, the fixing sleeve is slidably disposed outside the limiting shaft, the clamping claw is slidably disposed outside the limiting shaft through the fixing sleeve, the positioning post is fixedly installed at the bottom of the fixing frame, and one end of the hydraulic rod is fixedly connected to the clamping claw.

[0007] Preferably, the sliding assembly unit includes a guide rail, a sliding table, a second positioning component, a positioning block, a second support component, and an electric push rod. The guide rail is fixedly installed on the top of the positioning table. The sliding table is slidably disposed on the top of the positioning table via the guide rail. The second positioning component is fixedly installed on the top of the sliding table. The second support component is fixedly installed on the top surface of the positioning table, and the position of the second support component is close to the positioning block. The electric push rod is fixedly installed inside the second support component, and a positioning pin is fixedly installed at the end of the electric push rod near the positioning block.

[0008] Preferably, the lifting unit includes a drive motor, a drive gear, a support block, a rotating shaft, a take-up roller, a traction rope, an external gear, a slide bar, a sliding sleeve, and a slider.

[0009] Preferably, the drive motor is fixedly mounted on the top of the support frame, the drive gear is fixedly mounted on the output end of the drive motor, the support block is fixedly mounted on the top of the support frame, the rotating shaft is rotatably disposed inside the support block, the take-up roller is fixedly mounted on the outside of the rotating shaft, the traction rope is wound and connected inside the take-up roller, the external gear is fixedly mounted on the end of the rotating shaft near the drive motor, the drive gear is meshed with the external gear, the slide rod is fixedly mounted inside the support frame, the sliding sleeve is slidably disposed outside the slide rod, the slider is slidably disposed outside the slide rod through the sliding sleeve, and the fixing frame is fixedly mounted on one side of the slider.

[0010] Preferably, the top of the support frame has a through hole, and one end of the traction rope passes through the through hole and is fixedly connected to the top of the slider.

[0011] Preferably, the top of the first positioning component is provided with a first sand core, the top of the second positioning component is provided with a second sand core, the first sand core has a connecting screw embedded inside, and the first sand core and the second sand core are connected together by the connecting screw.

[0012] Preferably, the bottom of the mobile platform is fixedly equipped with four electric pulleys, which are arranged in a rectangular array at the bottom of the mobile platform.

[0013] The working principle and beneficial effects of this utility model are as follows: the sand core can be clamped by the hydraulic rod and the clamping claw to prevent the sand core from loosening during feeding; the entire clamping unit can be directly pulled up by the slider through the traction rope, so that the clamping unit and the sand core are lifted up as a whole and separated from the positioning table to prevent the sand core from colliding with the parts on the positioning table; the sand core can be moved away smoothly by the electric pulley to prevent the sand core from being damaged. 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 of this utility model; Figure 2 This utility model Figure 1 A magnified view of part A in the image; Figure 3 This is a schematic diagram of the overall structure of the clamping unit of this utility model; Figure 4 This utility model Figure 3 A magnified view of part B in the image; Figure 5 This is the right view of the present invention; Figure 6 This utility model Figure 5 A magnified view of part C.

[0016] In the diagram: 1. Positioning platform; 2. Moving platform; 3. Positioning component 1; 4. Support frame; 5. Fixed frame; 6. Hydraulic rod; 7. Support component 1; 8. Limiting shaft; 9. Fixed sleeve; 10. Clamping claw; 11. Positioning column; 12. Guide rail; 13. Sliding platform; 14. Positioning component 2; 15. Positioning block; 16. Support component 2; 17. Electric push rod; 18. Drive motor; 19. Drive gear; 20. Support block; 21. Rotating shaft; 22. Take-up roller; 23. Traction rope; 24. External gear; 25. Sliding rod; 26. Sliding sleeve; 27. Sliding block; 28. Sand core 1; 29. ​​Sand core 2; 30. Connecting screw; 31. Electric pulley. 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] Implementation

[0019] Please see Figure 1- Figure 6 A hydraulic casting sand core assembly fixture for easy material unloading includes: a positioning table 1 and a moving table 2; A positioning component 3 is fixedly installed on the top of the positioning platform 1. A sliding assembly unit is fixedly installed on the top of the positioning platform 1 for sliding assembly of the sand core. A support frame 4 is fixedly installed on the top of the moving platform 2. A lifting unit is fixedly installed inside the support frame 4. A clamping unit is fixedly installed on one side of the support frame 4 through the lifting unit for clamping the sand core. The clamping unit includes a fixed frame 5, a hydraulic rod 6, a first support component 7, a limit shaft 8, a fixed sleeve 9, a clamping claw 10, and a positioning post 11.

[0020] The technical solution provided in this embodiment is as follows: When material needs to be unloaded, firstly, start the drive motor 18 to rotate the drive gear 19 in the reverse direction and rotate the external gear 24 and the rotating shaft 21 in the reverse direction. This causes the take-up roller 22 to release the traction rope 23, and the slider 27 and the entire clamping unit will drop due to weight. Then, it will be positioned by the positioning column 11. Then, the two clamping claws 10 will be moved to both ends of the sand core. Then, the hydraulic rod 6 will be retracted, and the clamping claws 10 will be retracted, so that the two clamping claws 10 clamp the sand core. Then, start the drive motor 18 to rotate forward, and rotate the drive gear 19 in the forward direction to rotate the external gear 24 and the rotating shaft 21. When the rotating shaft 21 rotates forward, the take-up roller 22 will retract the traction rope 23, and pull the slider 27 and the entire clamping unit upward through the slide rod 25 and the sliding sleeve 26, thereby causing the sand core to detach from the positioning table 1. Then, by starting the electric pulley 31 to move the lifting unit and the clamping unit, the assembled sand core can be moved away smoothly, preventing damage to the sand core.

[0021] Furthermore, the fixed frame 5 is fixedly installed on one side of the lifting unit, the hydraulic rod 6 is fixedly installed on the top of the fixed frame 5, the first support member 7 is fixedly installed on the top of the fixed frame 5, the limiting shaft 8 is fixedly installed inside the first support member 7, the fixed sleeve 9 is slidably disposed outside the limiting shaft 8, the clamping claw 10 is slidably disposed outside the limiting shaft 8 through the fixed sleeve 9, the positioning column 11 is fixedly installed at the bottom of the fixed frame 5, and one end of the hydraulic rod 6 is fixedly connected to the clamping claw 10.

[0022] Specifically, by fixing one end of the hydraulic rod 6 to the clamping claw 10, the clamping claw 10 can be pushed when the hydraulic rod 6 is activated, so that the clamping claw 10 clamps the sand core and moves the sand core out of the top of the positioning table 1.

[0023] Furthermore, the sliding assembly unit includes a guide rail 12, a sliding table 13, a second positioning component 14, a positioning block 15, a second support component 16, and an electric push rod 17. The guide rail 12 is fixedly installed on the top of the positioning table 1. The sliding table 13 is slidably positioned on the top of the positioning table 1 via the guide rail 12. The second positioning component 14 is fixedly installed on the top of the sliding table 13. The second support component 16 is fixedly installed on the top surface of the positioning table 1, and the position of the second support component 16 is close to the positioning block 15. The electric push rod 17 is fixedly installed inside the second support component 16, and a positioning pin is fixedly installed at one end of the electric push rod 17 near the positioning block 15.

[0024] Specifically, by fixing the positioning pin to one end of the electric push rod 17, the positioning pin can be pushed to press against the positioning block 15 when the electric push rod 17 is started, thereby fixing the sliding table 13 and preventing the sliding table 13 from moving when docking the No. 1 sand core 28 and the No. 2 sand core 29.

[0025] Furthermore, the lifting unit includes a drive motor 18, a drive gear 19, a support block 20, a rotating shaft 21, a take-up roller 22, a traction rope 23, an external gear 24, a slide bar 25, a sliding sleeve 26, and a slider 27.

[0026] Specifically, the movement of the slider 27 can be restricted by the slide rod 25 and the sliding sleeve 26, so that the slider 27 can move up and down, thereby causing the slider 27 to drive the clamping unit to move up and down, and move the sand core off the positioning table 1.

[0027] Furthermore, the drive motor 18 is fixedly installed on the top of the support frame 4, the drive gear 19 is fixedly installed on the output end of the drive motor 18, the support block 20 is fixedly installed on the top of the support frame 4, the rotating shaft 21 is rotatably disposed inside the support block 20, the take-up roller 22 is fixedly installed outside the rotating shaft 21, the traction rope 23 is wound and connected inside the take-up roller 22, the external gear 24 is fixedly installed on one end of the rotating shaft 21 near the drive motor 18, the drive gear 19 is meshed with the external gear 24, the slide rod 25 is fixedly installed inside the support frame 4, the sliding sleeve 26 is slidably disposed outside the slide rod 25, the slider 27 is slidably disposed outside the slide rod 25 through the sliding sleeve 26, and the fixing frame 5 is fixedly installed on one side of the slider 27.

[0028] Specifically, by engaging the drive gear 19 with the external gear 24, the external gear 24 can be driven when the drive motor 18 is started and the drive gear 19 is rotated. In turn, the external gear 24 rotates the rotating shaft 21 and rotates the take-up drum 22, so that the traction rope 23 is taken up by the take-up drum 22 and pulls the slider 27 to move upward.

[0029] Furthermore, a perforation is provided at the top of the support frame 4, and one end of the traction rope 23 passes through the perforation and is fixedly connected to the top of the slider 27.

[0030] Specifically, by opening a hole at the top of the support frame 4, the traction rope 23 can pass through the hole to the top of the support frame 4, preventing the traction rope 23 from being excessively worn by the edges of the support frame 4.

[0031] Furthermore, a No. 1 sand core 28 is provided on the top of the No. 1 positioning component 3, and a No. 2 sand core 29 is provided on the top of the No. 2 positioning component 14. A connecting screw 30 is embedded inside the No. 1 sand core 28, and the No. 1 sand core 28 and the No. 2 sand core 29 are connected together by the connecting screw 30.

[0032] Specifically, connecting the No. 1 sand core 28 and the No. 2 sand core 29 together via the connecting screw 30 facilitates subsequent processing of the hydraulic casting.

[0033] Furthermore, four electric pulleys 31 are fixedly installed at the bottom of the mobile platform 2, and the four electric pulleys 31 are installed in a rectangular array at the bottom of the mobile platform 2.

[0034] Specifically, this can be achieved by mounting four electric pulleys 31 in a rectangular array at the bottom of the moving platform 2.

[0035] 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 hydraulic casting sand core assembly fixture for convenient material feeding, characterized in that, include: Positioning station (1) and mobile station (2); A positioning component (3) is fixedly installed on the top of the positioning platform (1). A sliding assembly unit is fixedly installed on the top of the positioning platform (1) for sliding assembly of the sand core. A support frame (4) is fixedly installed on the top of the moving platform (2). A lifting unit is fixedly installed inside the support frame (4). A clamping unit is fixedly installed on one side of the support frame (4) through the lifting unit for clamping the sand core. The clamping unit includes a fixed frame (5), a hydraulic rod (6), a first support component (7), a limiting shaft (8), a fixed sleeve (9), a clamping claw (10), and a positioning post (11).

2. The hydraulic casting sand core assembly fixture for convenient material feeding according to claim 1, characterized in that: The fixed frame (5) is fixedly installed on one side of the lifting unit, the hydraulic rod (6) is fixedly installed on the top of the fixed frame (5), the first support member (7) is fixedly installed on the top of the fixed frame (5), the limiting shaft (8) is fixedly installed inside the first support member (7), the fixed sleeve (9) is slidably disposed outside the limiting shaft (8), the clamping claw (10) is slidably disposed outside the limiting shaft (8) through the fixed sleeve (9), the positioning column (11) is fixedly installed at the bottom of the fixed frame (5), and one end of the hydraulic rod (6) is fixedly connected to the clamping claw (10).

3. The hydraulic casting sand core assembly fixture for convenient material feeding according to claim 1, characterized in that: The sliding assembly unit includes a guide rail (12), a sliding table (13), a second positioning component (14), a positioning block (15), a second support component (16), and an electric push rod (17). The guide rail (12) is fixedly installed on the top of the positioning table (1). The sliding table (13) is slidably disposed on the top of the positioning table (1) via the guide rail (12). The second positioning component (14) is fixedly installed on the top of the sliding table (13). The second support component (16) is fixedly installed on the top surface of the positioning table (1), and the position of the second support component (16) is close to the positioning block (15). The electric push rod (17) is fixedly installed inside the second support component (16), and a positioning pin is fixedly installed at one end of the electric push rod (17) near the positioning block (15).

4. The hydraulic casting sand core assembly fixture for convenient material feeding according to claim 1, characterized in that: The lifting unit includes a drive motor (18), a drive gear (19), a support block (20), a rotating shaft (21), a take-up roller (22), a traction rope (23), an external gear (24), a slide bar (25), a sliding sleeve (26), and a slider (27).

5. A hydraulic casting sand core assembly fixture for convenient material feeding according to claim 4, characterized in that: The drive motor (18) is fixedly installed on the top of the support frame (4), the drive gear (19) is fixedly installed on the output end of the drive motor (18), the support block (20) is fixedly installed on the top of the support frame (4), the rotating shaft (21) is rotatably arranged inside the support block (20), the take-up roller (22) is fixedly installed outside the rotating shaft (21), the traction rope (23) is wound and connected inside the take-up roller (22), the external gear (24) is fixedly installed at one end of the rotating shaft (21) near the drive motor (18), the drive gear (19) is meshed with the external gear (24), the slide rod (25) is fixedly installed inside the support frame (4), the sliding sleeve (26) is slidably arranged outside the slide rod (25), the slider (27) is slidably arranged outside the slide rod (25) through the sliding sleeve (26), and the fixing frame (5) is fixedly installed on one side of the slider (27).

6. A hydraulic casting sand core assembly fixture for convenient material feeding according to claim 4, characterized in that: The top of the support frame (4) has a through hole, and one end of the traction rope (23) passes through the through hole and is fixedly connected to the top of the slider (27).

7. A hydraulic casting sand core assembly fixture for convenient material feeding according to claim 3, characterized in that: The top of the first positioning component (3) is provided with a first sand core (28), and the top of the second positioning component (14) is provided with a second sand core (29). The first sand core (28) is embedded with a connecting screw (30), and the first sand core (28) and the second sand core (29) are connected together by the connecting screw (30).

8. A hydraulic casting sand core assembly fixture for convenient material feeding according to claim 1, characterized in that: The bottom of the mobile platform (2) is fixedly equipped with electric pulleys (31). There are four electric pulleys (31), and the four electric pulleys (31) are installed in a rectangular array at the bottom of the mobile platform (2).

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