Automatic locking mechanism of cylinder body sand core

Abstract

The invention provides an automatic locking mechanism of cylinder body sand cores, and relates to the field of cylinder body sand core facilities, the automatic locking mechanism of the cylinder body sand cores is used for fixing a plurality of cylinder body sand cores and comprises a bottom plate, side plates, a top plate and a fixing piece, the plurality of cylinder body sand cores are arranged on the bottom plate at equal intervals, the top plate is installed at the tops of the cylinder body sand cores, and the fixing piece is installed on the side plates. The side plates are bilaterally symmetrically arranged on two sides of the bottom plate, the end of the bottom plate is inserted into the bottom ends of the side plates, the end of the top plate is inserted into the top ends of the side plates, and the bottom plate, the side plates, the top plate and the fixing pieces form an exoskeleton to wrap a cylinder sand core. According to the automatic lock catch mechanism of the cylinder body sand core, the bottom plate, the side plates, the top plate and the fixing piece are arranged to form an exoskeleton, the cylinder body sand core is wrapped, and therefore a lock catch is formed to fix the cylinder body sand core. A traditional bolt fixing mode is replaced, the using amount of bolts is reduced, the situation that equipment bears extra mechanical stress due to too many bolts is avoided, abrasion is further reduced, and production efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of cylinder block sand core equipment technology, specifically to an automatic locking mechanism for cylinder block sand cores. Background Technology

[0002] The engine cylinder block has a complex structure, and the internal cavity of the cylinder is formed by a sand core.

[0003] In traditional production methods, each sand core inside the cylinder is fixed by screws. However, this requires a large number of screws. Too many screws will cause the equipment to bear additional mechanical stress, resulting in structural deformation or fatigue of key components. Too many screws will also accelerate wear.

[0004] Secondly, the fit between sand cores is not easy to control. If the fit is too small or too large, it will cause some parts of the sand core to come into contact. During the production process, some local areas of the sand core may crack due to compression. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic locking mechanism for cylinder block sand cores, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic locking mechanism for cylinder sand cores, which fixes multiple cylinder sand cores, including a base plate, side plates, a top plate, and a fixing member. Multiple cylinder sand cores are arranged at equal intervals on the base plate. The top plate is installed on the top of the cylinder sand cores. The side plates are symmetrically arranged on both sides of the base plate. The end of the base plate is inserted into the bottom end of the side plate, and the end of the top plate is inserted into the top end of the side plate. The fixing member is installed below the top plate. The base plate, side plates, top plate, and fixing member form an exoskeleton that wraps around the cylinder sand cores.

[0007] It also includes a base, with limiting components at both ends of the base that connect to the side plates, and multiple micro-adjustment components on the front and rear sides of the base. The micro-adjustment components are inserted between two adjacent cylinder sand cores, and the gap between the cylinder sand cores is adjusted by using the micro-adjustment components.

[0008] The micro-control component includes a bar, an air cushion installed on the inner side of the bar, the air cushion being held in the gap between two adjacent cylinder sand cores, a small air pump and a controller installed on the outer side of the bar, the small air pump being connected to the air cushion, and the controller being connected to a hose, which is connected to the air cushion. The controller is used to control the air content inside the air cushion.

[0009] The lower end of the side plate has a lower insertion port that matches the end of the bottom plate. The inner side of the side plate has a mating interface that can be inserted into the mating interface. The top of the side plate has a mating interface that matches the end of the top plate. The outer side of the side plate has a positioning hole.

[0010] Preferably, the controller includes a hollow long tube, the upper end of which is connected to a flexible tube. A motor is installed at the bottom of the inner wall of the long tube. A slider and a piston are slidably fitted inside the long tube from bottom to top. A vertical screw is connected to the motor drive shaft. The screw thread passes through the slider. A vertical support rod is connected to the top of the slider.

[0011] Preferably, a pressure detector is connected to the upper end of the support rod, and a spring is connected to the top of the pressure detector, with the upper end of the spring connected to the piston.

[0012] Preferably, it also includes an auxiliary component installed inside the controller. The auxiliary component includes a rope and a take-up drum. The take-up drum is pivotally connected to the top of the inner wall of the long tube and is driven to rotate by a motor. One end of the rope is connected to a piston, and the other end of the rope is wound around the take-up drum.

[0013] Preferably, the limiting component is a vertical plate, the vertical plate rod is connected to a positioning block, the positioning block is engaged with a positioning hole, the lower end of the vertical plate is symmetrically provided with shafts, the bottom of the vertical plate is connected to a powerful magnet, the bottom of the base is connected to an electromagnet module, and there is a mutual repulsive force between the powerful magnet and the electromagnet module.

[0014] Preferably, the base end has a through groove, and a slide rail is formed in the through groove, with the vertical plate shaft slidingly fitted in the slide rail.

[0015] Preferably, the base has ramps on the front and rear edges, and crossbars are provided on both the front and rear sides of the base. The bar is pivotally connected to the crossbar, and the bar is rotated upward 180° so that the air cushion is inserted into the cylinder gap, and the bar overlaps on the ramp.

[0016] Preferably, the top plate has a circular groove, the fixing member has a receiving cavity corresponding to the circular groove, and the top of the fixing member is connected to a plug, which is inserted into the bottom of the top plate.

[0017] This invention provides an automatic locking mechanism for cylinder block sand cores. It has the following beneficial effects: 1. The automatic locking mechanism for the cylinder sand core consists of a base plate, side plates, a top plate, and fixing components. These components form an exoskeleton that encloses the cylinder sand core, thereby securing it in place. This replaces the traditional bolt fixing method, reducing the number of bolts used, avoiding excessive mechanical stress on the equipment due to too many bolts, further reducing wear, and further improving production efficiency.

[0018] 2. The automatic locking mechanism of the cylinder block sand core includes an air cushion and a controller. The controller contains a motor, screw, slider, support rod, pressure detector, spring, piston, rope, and reel. The screw drives the slider to rise, and the slider pushes the piston to rise via the support rod. Air is then reintroduced into the air cushion, and the expansion of the air cushion widens the gaps between the cylinder block sand cores, thus preventing them from squeezing and pressing against each other and causing cracks. Attached Figure Description

[0019] Figure 1 This is an exploded view of the structure of the present invention; Figure 2 This is a schematic diagram of the structure and operation of the present invention; Figure 3 This is another schematic diagram of the structure of the present invention in operation; Figure 4 This is a schematic diagram of the structure of the present invention; Figure 5 This is a schematic diagram of the base structure of the present invention; Figure 6 This is a schematic diagram of the base structure of the present invention from another angle; Figure 7 This is a schematic diagram of the controller structure of the present invention.

[0020] In the diagram: 1. Base plate, 2. Side plate, 21. Lower insertion port, 22. Connecting interface, 23. Upper insertion port, 24. Positioning hole, 3. Top plate, 31. Circular groove, 4. Fixing component, 41. Receiving cavity, 42. Insert post, 5. Base, 51. Through groove, 52. Slide rail, 53. Ramp, 54. Horizontal bar, 6. Vertical plate, 61. Positioning block, 62. Strong magnet, 7. Electromagnet module, 8. Rod, 81. Small air pump, 9. Air cushion, 10. Controller, 101. Motor, 102. Screw, 103. Slider, 104. Support rod, 105. Pressure detector, 106. Spring, 107. Piston, 108. Rope, 109. Take-up reel. Detailed Implementation

[0021] This invention provides an automatic locking mechanism for cylinder block sand cores, such as... Figure 1-7 As shown, multiple cylinder sand cores are fixed using a base plate 1, side plates 2, top plate 3, and fixing components 4. The cylinder sand cores are arranged equidistantly on the base plate 1. The top plate 3 is installed on top of the cylinder sand cores. The side plates 2 are symmetrically arranged on both sides of the base plate 1. The ends of the base plate 1 and side plates 2 are fixedly inserted into each other, and the ends of the top plate 3 and side plates 2 are fixedly inserted into each other. The fixing components 4 are fixedly installed below the top plate 3. The base plate 1, side plates 2, top plate 3, and fixing components 4 form an exoskeleton that encases the cylinder sand cores. A self-locking mechanism is formed by the base plate 1, side plates 2, top plate 3, and fixing components 4, replacing the traditional bolt fixing method.

[0022] It also includes a base 5, with limiting members at both ends of the base 5 that are connected to the side plates 2, and the exoskeleton is fixed to the base 5 using the limiting members.

[0023] Multiple micro-distance control components are provided on the front and rear sides of the base 5. The micro-distance control components are inserted between two adjacent cylinder sand cores, and the gap between the cylinder sand cores is adjusted by the micro-distance control components.

[0024] The micro-control component includes a bar 8, with an air cushion 9 fixedly installed inside the bar 8, clamped within the gap between two adjacent cylinder cores. A small air pump 81 and a controller 10 are fixedly installed outside the bar 8. The small air pump 81 is connected to the air cushion 9, and the controller 10 is connected to a flexible hose, which is also connected to the air cushion 9. The controller 10 is used to control the air content inside the air cushion 9.

[0025] The lower end of the side plate 2 has a lower insertion port 21 that matches the end of the base plate 1. The inner side of the side plate 2 has a mating interface 22, and the end of the fixing member 4 can be inserted into the mating interface 22. The top of the side plate 2 has a mating interface 23 that matches the end of the top plate 3. The outer side of the side plate 2 has a positioning hole 24. The limiting member is used to fix it with the positioning hole 24. Through the cooperation of the limiting member and the positioning hole 24, the sand core cylinder is fixed on the base 5.

[0026] The controller 10 includes a hollow long tube, the upper end of which is connected to a flexible tube. A motor 101 is fixedly installed on the bottom of the inner wall of the long tube. A slider 103 and a piston 107 are slidably fitted inside the long tube from bottom to top. A vertical screw 102 is welded to the drive shaft of the motor 101. The screw 102 is threaded through the slider 103. A vertical support rod 104 is welded to the top of the slider 103.

[0027] A pressure detector 105 is fixedly installed on the upper end of the support rod 104, and a spring 106 is fixedly installed on the top of the pressure detector 105. The upper end of the spring 106 is welded to the piston 107.

[0028] Working principle: First, air is injected into the air cushion 9 using a small air pump 81. Then, the cylinder block sand core is placed on the base plate 1, clamping the air cushion 9. Next, the fixing component 4, top plate 3, and side plate 2 are installed in this manner. Due to the clamping, after the cylinder block sand core is fixed, it compresses the air cushion 9. The air inside the air cushion 9 enters the controller 10, and the piston 107 descends, compressing the spring 106. The spring 106 applies pressure to the pressure detector 105.

[0029] The pressure detector 105 feeds back information to an external computer terminal, determining the amount of air expelled from the air cushion 9. If the gap is too small, the pressure detector 105 will measure a higher value. In this case, the motor 101 drives the screw 102 to rotate, which in turn raises the slider 103. The support rod 104, in conjunction with the spring 106, pushes the piston 107 upward. This forces some air back into the air cushion 9, causing it to expand slightly and slowly widen the gap in the cylinder sand core.

[0030] It also includes an auxiliary component installed inside the controller 10. The auxiliary component includes a rope 108 and a take-up drum 109. The take-up drum 109 is pivotally connected to the top of the inner wall of the long tube and is driven to rotate by a motor. One end of the rope 108 is fixedly tied to the piston 107, and the other end of the rope 108 is wrapped around the take-up drum 109.

[0031] Working principle: When it is necessary to pressurize the air in the controller 10 into the air cushion 9, the take-up drum 109 rotates and winds the rope 108. The rope 108 lifts and pulls up the piston 107, so that the piston 107 and the slider 103 move synchronously.

[0032] The limiting component is a vertical plate 6. A positioning block 61 is welded to the body of the vertical plate 6. The positioning block 61 is engaged with the positioning hole 24. A shaft is symmetrically welded to the lower end of the vertical plate 6. A powerful magnet 62 is fixedly installed at the bottom of the vertical plate 6. An electromagnet module 7 is fixedly installed at the bottom of the base 5. There is a mutual repulsive force between the powerful magnet 62 and the electromagnet module 7.

[0033] Working principle: The vertical plate 6 flips over, causing the positioning block 61 to snap into the side plate 2. Then, the electromagnet module 7 is energized to generate a magnetic field. Through the mutual repulsion of magnetic forces, the vertical plate 6 and the side plate 2 are brought into close contact, thus enhancing the fixing effect.

[0034] The base 5 has a through groove 51 at its end, and a slide 52 is provided in the through groove 51. The vertical plate 6 is slidably fitted in the slide 52.

[0035] The base 5 has ramps 53 on the front and rear edges. Horizontal bars 54 are welded to both the front and rear sides of the base 5. The bar 8 is pivotally connected to the horizontal bar 54. The bar 8 is rotated upwards by 180° so that the air cushion 9 is inserted into the cylinder gap. At this time, the bar 8 overlaps on the ramp 53.

[0036] The top plate 3 has a circular groove 31, and the fixing member 4 has a corresponding receiving cavity 41. The upper end of the cylinder sand core extends into the circular groove 31 and the receiving cavity 41. A plug 42 is welded to the top of the fixing member 4, and the plug 42 is fixedly inserted into the bottom of the top plate 3.

[0037] In summary, the automatic locking mechanism for the cylinder sand core comprises a base plate 1, side plates 2, a top plate 3, and a fixing component 4. These components form an exoskeleton that encloses the cylinder sand core, thereby securing it in place. This replaces the traditional bolt fixing method, reducing the number of bolts used, avoiding excessive mechanical stress on the equipment due to excessive bolts, further reducing wear, and further improving production efficiency.

[0038] Furthermore, an air cushion 9 and a controller 10 are installed. The controller 10 contains a motor 102, a screw 103, a slider 103, a support rod 104, a pressure detector 105, a spring 106, a piston 107, a rope 108, and a reel 109. The screw 103 drives the slider 103 to rise, and the slider 103 pushes the piston 107 to rise via the support rod 104. Air is reintroduced into the air cushion 9, and the expansion of the air cushion 9 widens the gap between the cylinder block sand cores, thus preventing the cylinder block sand cores from being squeezed and pressed together, which could cause cracks.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic locking mechanism for cylinder block sand cores, used to fix multiple cylinder block sand cores, characterized in that: Includes a base plate (1), side plates (2), top plate (3) and fasteners (4). Multiple cylinder sand cores are arranged at equal intervals on the base plate (1). The top plate (3) is installed on the top of the cylinder sand cores. The side plates (2) are arranged symmetrically on both sides of the base plate (1). The end of the base plate (1) is inserted into the bottom end of the side plate (2), and the end of the top plate (3) is inserted into the top end of the side plate (2). The fasteners (4) are installed below the top plate (3). The base plate (1), side plates (2), top plate (3) and fasteners (4) form an exoskeleton to wrap around the cylinder sand cores. It also includes a base (5), with limiting components connected to the side plate (2) at both ends of the base (5), and multiple micro-distance control components on the front and rear sides of the base (5). The micro-distance control components are inserted between two adjacent cylinder sand cores, and the gap between the cylinder sand cores is controlled by the micro-distance control components. The micro-adjustment component includes a bar (8), an air cushion (9) is installed on the inner side of the bar (8), the air cushion (9) is clamped in the gap between two adjacent cylinder sand cores, a small air pump (81) and a controller (10) are installed on the outer side of the bar (8), the small air pump (81) is connected to the air cushion (9), the controller (10) is connected to a hose, the hose is connected to the air cushion (9), and the controller (10) is used to control the air content inside the air cushion (9); The lower end of the side plate (2) is provided with a lower insertion port (21) that is compatible with the end of the bottom plate (1). The inner side of the side plate (2) is provided with a mating interface (22). The end of the fastener (4) can be inserted into the mating interface (22). The top of the side plate (2) is provided with a mating interface (23) that is compatible with the end of the top plate (3). The outer side of the side plate (2) is provided with a positioning hole (24).

2. The automatic locking mechanism for a cylinder block sand core according to claim 1, characterized in that: The manipulator (10) includes a hollow long tube, the upper end of which is connected to a flexible tube. A motor (101) is installed at the bottom of the inner wall of the long tube. A slider (103) and a piston (107) are slidably fitted inside the long tube from bottom to top. The drive shaft of the motor (101) is connected to a vertical screw (102). The screw (102) is threaded through the slider (103). A vertical support rod (104) is connected to the top of the slider (103).

3. The automatic locking mechanism for a cylinder block sand core according to claim 2, characterized in that: The upper end of the support rod (104) is connected to a pressure detector (105), and the top of the pressure detector (105) is connected to a spring (106). The upper end of the spring (106) is connected to the piston (107).

4. The automatic locking mechanism for a cylinder block sand core according to claim 3, characterized in that: It also includes an auxiliary component installed inside the controller (10). The auxiliary component includes a rope (108) and a take-up drum (109). The take-up drum (109) is pivotally connected to the top of the inner wall of the long tube and is driven to rotate by a motor. One end of the rope (108) is connected to the piston (107), and the other end of the rope (108) is wound around the take-up drum (109).

5. The automatic locking mechanism for a cylinder block sand core according to claim 4, characterized in that: The limiting component is a vertical plate (6), the vertical plate (6) is connected to a positioning block (61), the positioning block (61) is engaged with the positioning hole (24), the lower end of the vertical plate (6) is symmetrically provided with shafts, the bottom of the vertical plate (6) is connected to a powerful magnet (62), the bottom of the base (5) is connected to an electromagnet module (7), and there is a mutual repulsive force between the powerful magnet (62) and the electromagnet module (7).

6. The automatic locking mechanism for a cylinder block sand core according to claim 5, characterized in that: The base (5) has a through groove (51) at one end, and a slide (52) is provided in the through groove (51). The shaft of the vertical plate (6) is slidably fitted in the slide (52).

7. The automatic locking mechanism for a cylinder block sand core according to claim 6, characterized in that: The base (5) has ramps (53) on its front and rear edges. The base (5) has crossbars (54) on both its front and rear sides. The bar (8) is pivotally connected to the crossbar (54). The bar (8) is rotated upwards by 180° so that the air cushion (9) is inserted into the cylinder gap. The bar (8) overlaps on the ramp (53).

8. The automatic locking mechanism for a cylinder block sand core according to claim 7, characterized in that: The top plate (3) has a circular groove (31), and the fixing member (4) has a receiving cavity (41) corresponding to the circular groove (31). The top of the fixing member (4) is connected to a plug (42), and the plug (42) is inserted into the bottom of the top plate (3).

Images