Pre-treatment equipment used before polishing of die casting

Abstract

The pretreatment equipment comprises a rack, a plurality of conveying wheels and limiting wheels are rotationally installed on the rack, the conveying wheels and the limiting wheels are evenly divided into at least two sets, any set of conveying wheels are arranged at intervals in the material conveying direction of the rack, and any set of limiting wheels are arranged in the same mode. The conveying wheels are used for conveying workpieces, the limiting wheels are used for limiting deviation of the workpieces, the two sets of conveying wheels are located between the two sets of limiting wheels, the rack is provided with a driving device for driving the conveying wheels to rotate, the rack is divided into a feeding part, a cleaning part and a discharging part, and a plurality of high-pressure nozzles are installed at the cleaning part of the rack and surround the conveying wheels and the limiting wheels of the cleaning part of the rack. After a workpiece is placed on the conveying wheel, the driving mechanism is started to drive the conveying wheel to rotate, the workpiece is conveyed to the cleaning part of the rack, the workpiece can be output after the six faces of the workpiece are cleaned at a time through the high-pressure nozzles, and due to the fact that the secondary cleaning procedure of the sixth face is omitted, the cleaning efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of die-casting part grinding equipment, and particularly to a pre-treatment equipment for die-casting parts before grinding. Background Art

[0002] Before deburring die-casting parts, pre-treatment of the die-casting parts is required, including cleaning the oil stains on the die-casting parts and removing the scale on the die-casting parts, so as to facilitate subsequent deburring treatment of the die-casting parts.

[0003] In traditional factories, before pre-treating die-casting parts for grinding, the die-casting parts are usually placed on a conveyor belt in sequence, and then jet-cleaned with a high-pressure water gun. Only five surfaces of the die-casting part can be cleaned at a time. For the remaining surfaces, if they need to be cleaned, a second round of cleaning is required, which is time-consuming and reduces the overall cleaning efficiency. Utility Model Content

[0004] Aiming at the problem that the pre-treatment equipment before deburring traditional die-casting parts can only clean five surfaces of the die-casting parts at a time, resulting in low cleaning efficiency, this application provides a pre-treatment equipment for die-casting parts before grinding.

[0005] A pre-treatment equipment for die-casting parts before grinding provided by this application adopts the following technical solution:

[0006] A pre-treatment equipment for die-casting parts before grinding includes a frame. A number of conveyor wheels are rotatably installed on the frame. The conveyor wheels are evenly divided into at least two groups. Any group of the conveyor wheels is arranged at intervals along the material transportation direction of the frame. The conveyor wheels are used to transport workpieces. A number of limiting wheels are also rotatably installed on the frame. The limiting wheels are also evenly divided into at least two groups. The arrangement direction of any group of the limiting wheels is parallel to the arrangement direction of the conveyor wheels. The two groups of conveyor wheels are located between the two groups of limiting wheels. The limiting wheels are used to limit the offset of the workpiece during transportation. The frame is provided with a driving device for driving the conveyor wheels to rotate, dividing the frame into a loading section, a cleaning section and an unloading section. A number of high-pressure nozzles are installed at the cleaning section of the frame. The high-pressure nozzles surround both the conveyor wheels and the limiting wheels at the cleaning section of the frame.

[0007] Place the workpiece to be cleaned on the conveyor wheels, and then start the driving mechanism to drive the conveyor wheels to rotate to transport the workpiece to the cleaning section of the frame. After the six surfaces of the workpiece are cleaned at one time by the high-pressure nozzles, it can be transported to the deburring station for deburring. Compared with the traditional method of transporting workpieces by a conveyor belt, the secondary cleaning process for the sixth surface is reduced, and the cleaning efficiency is improved.

[0008] Optionally, any set of the limiting wheels and any set of the conveying wheels correspond to each other one by one. The corresponding limiting wheel and conveying wheel are defined as a set of roller groups. The axes of the conveying wheel and the limiting wheel in the same set of roller groups are located on the same circle. The axes of the conveying wheel and the limiting wheel in the same set of roller groups intersect with the center of the circle where the above-mentioned axes are located. The conveying wheel and the limiting wheel of the roller group are both located on the lower semi-circle of the above-mentioned circle.

[0009] The limiting wheels and conveying wheels in the same set are circularly distributed, enabling the transportation of castings of different shapes. At the same time, the castings are placed on the circularly distributed limiting wheels and conveying wheels, allowing the castings to freely adjust their positions blocked by the conveying wheels or limiting wheels, improving the cleaning effect.

[0010] Optionally, an adjusting mechanism is provided on the cleaning part of the frame. The adjusting mechanism is used to drive the casting to rotate so as to be misaligned with the conveying wheel and the limiting wheel.

[0011] When the casting is transported to the cleaning part of the frame for cleaning, the adjusting mechanism drives the casting to rotate, so that the parts of the casting blocked by the conveying wheel and the limiting wheel can also be cleaned by the high-pressure spray head, further reducing the cleaning dead angle of the casting.

[0012] Optionally, the adjusting mechanism includes two ejector rods slidably mounted on the frame. The ejector rods are respectively located on both sides of the conveying wheel, and the ejector rods are located in the cleaning part of the frame. A first driving mechanism is provided on the frame to drive the ejector rods to slide, and the ejector rods slide along the direction of pressing against the casting on the conveying wheel.

[0013] When cleaning the casting, by alternately ejecting the two ejector rods, the casting is pushed to rotate left and right, so that the casting is alternately separated from the limiting wheels and conveying wheels on the left and right sides respectively, enabling the parts of the casting in contact with the limiting wheels and conveying wheels to also be cleaned.

[0014] Optionally, a roller is rotatably mounted at one end of the ejector rod that presses against the casting. The rotation plane of the roller is parallel to the rotation plane of the ejector rod that pushes the casting to rotate.

[0015] The roller changes the friction between the ejector rod and the casting from sliding friction to rolling friction. The friction damage generated when the ejector rod pushes the casting to rotate is smaller. At the same time, when there are protrusions on the casting, the ejector rod is not likely to damage the protrusions when pushing the casting through the roller.

[0016] Optionally, the roller is made of rubber, and anti-slip patterns are provided on the surface of the roller.

[0017] The roller made of rubber has a higher friction coefficient, and rubber has elasticity, making it less likely to damage the protrusions on the surface of the casting.

[0018] Optionally, a plurality of mounting frames corresponding to the push rods are slidably mounted on the frame, and the push rods are slidably mounted on the mounting frames. A second driving mechanism for driving the mounting frames to slide is provided on the frame, and when the mounting frames slide to a specified position, the push rods are in a working position.

[0019] Since the rotation direction of the roller is inconsistent with the transportation direction of the casting, when the conveying wheel is working, if the roller is pressed against the casting, sliding friction will be generated between the roller and the casting, which will cause greater unnecessary wear to both the roller and the casting. Therefore, when the conveying wheel rotates, the mounting frame slides to separate the roller from the casting, avoiding unnecessary wear of the roller and preventing the casting from axial rotation due to the influence of the roller during transportation.

[0020] Optionally, the driving device includes a plurality of driving motors installed inside the frame, the driving motors are connected to the transmission wheels in a one-to-one transmission manner, and the driving motors of any group of transmission wheels are controlled by a switch installed on the frame.

[0021] The drive motors of each group are controlled separately, so that when transporting longer castings, the drive motors can be shut down at intervals to save power consumption.

[0022] Optionally, a water-blocking shell is installed on the mounting frame, and the first driving mechanism includes a driving electric cylinder, which is installed on the frame and located in the water-blocking shell. A connecting hole is provided on the top rod, and one end of the water-blocking shell is slidably installed in the connecting hole. The piston rod of the driving electric cylinder slides through the water-blocking shell and is connected to the bottom of the connecting hole.

[0023] The driving electric cylinder is installed in the water-blocking housing to prevent water from splashing onto the driving electric cylinder during cleaning to cause a short circuit. At the same time, the driving electric cylinder can adjust the extension length of the piston rod to facilitate flipping of castings of different sizes.

[0024] In summary, the present application has the following beneficial effects: by placing the casting on a conveying wheel for transportation,

[0025] And cooperate with the ejector rod to flip the casting, so that the six sides of the casting can be fully cleaned during cleaning. The cleaning in the pretreatment can be completed in only one process, saving cleaning time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application, in which the anti-slip texture and control module are not shown.

[0027] Figure 2 It is a cross-sectional schematic diagram of the mounting frame of the present application, in which the driving electric cylinder is not cut.

[0028] Those skilled in the art will understand that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions and positions of some elements in the drawings may be enlarged relative to other elements to help improve the understanding of the embodiments of the present invention.

[0029] Reference numerals: 1, frame; 11, loading section; 12, cleaning section; 13, unloading section; 2, conveyor wheels; 3, limiting wheels; 4, high-pressure nozzles; 5, driving device; 51, driving motor; 52, switch; 6, adjusting mechanism; 61, mounting bracket; 62, ejector rod; 621, connection hole; 63, roller; 64, first driving mechanism; 641, driving electric cylinder; 65, second driving mechanism; 651, driving cylinder; 66, water shielding housing. Embodiment

[0030] The following will further elaborate on this application in conjunction with the attached Figure 1-2 drawings.

[0031] An embodiment of this application discloses a pre-treatment device for die-castings before grinding. Referring to Figure 1 , it includes a long strip-shaped frame 1, on which a number of conveyor wheels 2 are rotatably installed. The conveyor wheels 2 are divided into two groups, and the conveyor wheels 2 in any one group are evenly spaced along the length direction of the frame 1. A number of limiting wheels 3 are also rotatably installed on the frame 1. The limiting wheels 3 are also divided into two groups, and the limiting wheels 3 in each group are evenly spaced along the length direction of the frame 1.

[0032] Referring to Figure 1 , the conveyor wheels 2 in any one group and the limiting wheels 3 in any one group correspond to each other one by one, and the two groups of conveyor wheels 2 are located between the two groups of limiting wheels 3. Defining two corresponding limiting wheels 3 and two conveyor wheels 2 as a group, the axes of the limiting wheels 3 and the conveyor wheels 2 in the same group are located on the same circle, and the axis of this circle is parallel to the length direction of the frame 1. At the same time, the axes of the two limiting wheels 3 and the two conveyor wheels 2 in the same group intersect with the center of this circle, and the axes of the two limiting wheels 3 and the two conveyor wheels 2 are all located on the lower semi-circle of this circle.

[0033] Referring to Figure 1 , the frame 1 is divided into a loading section 11, a cleaning section 12 and an unloading section 13. Among them, four circles of water pipes are fixedly installed on the cleaning section of the frame 1. The axis of any one circle of water pipes is parallel to the length direction of the frame 1, and the water pipes are connected to a water source. A number of high-pressure nozzles 4 are fixedly installed on the inner circumferential wall of the water pipes. The high-pressure nozzles 4 are installed along the contour line of the water pipes. The high-pressure nozzles 4 surround the limiting wheels 3 and the conveyor wheels 2, and the spraying directions of the high-pressure nozzles 4 all face the center of the circle where the axes of the above-mentioned limiting wheels 3 and conveyor wheels 2 are located.

[0034] Referring to Figure 1, a driving device 5 is further provided on the rack 1. The driving device 5 includes a number of driving motors 51 fixedly installed inside the rack 1. The driving motors 51 correspond to the conveyor wheels 2 one by one and are in transmission connection. The conveyor wheels 2 are driven to rotate by the driving motors 51. At the same time, two driving motors 51 in the same group are controlled by the same switch 52. Therefore, the work of the motors in the same group can be stopped separately. When casting parts with a large transportation length that can span multiple groups of conveyor wheels 2, it is not necessary for all motors to be started simultaneously as the power source. Only some motors need to be started as the power source, which can save power consumption, ensure that every degree of electricity is used effectively, reduce waste, and is beneficial to energy conservation and environmental protection.

[0035] Refer to Figure 1 and Figure 2 , an adjusting mechanism 6 is provided at the cleaning part of the rack 1. The adjusting mechanism 6 includes two mounting brackets 61 slidably mounted horizontally on the rack 1, and the two mounting brackets 61 are respectively located on both sides of the conveyor wheel 2. A water retaining housing 66 is fixedly installed on the mounting bracket 61. A push rod 62 is provided on the water retaining housing 66. A connecting hole 621 is opened on one end face of the push rod 62. The water retaining housing 66 is in a cuboid shape, and one end of the water retaining housing 66 is slidably mounted in the connecting hole 621.

[0036] Refer to Figure 1 and Figure 2 , a second driving mechanism 65 for driving the mounting bracket 61 to slide is provided on the rack 1, and a first driving mechanism 64 for driving the push rod 62 to slide is provided on the mounting bracket 61. The first driving mechanism 64 includes a driving electric cylinder 641 fixedly installed on the mounting bracket 61 and located inside the water retaining housing 66. One end of the piston rod of the driving electric cylinder 641 slides through the water retaining housing 66 and is fixedly connected to the bottom of the mounting hole of the push rod 62. The push rod 62 is pushed to slide by the driving electric cylinder 641.

[0037] Refer to Figure 1 and Figure 2 , the second driving mechanism 65 includes a driving cylinder 651 fixedly installed on the rack 1. The piston rod of the driving cylinder 651 is fixedly connected to the mounting bracket 61, and the mounting bracket 61 is pushed to slide reciprocally by the driving cylinder 651.

[0038] Refer to Figure 1 and Figure 2, a rubber roller 63 is rotatably installed at one end of the ejector rod 62 away from the water retaining housing 66, and anti-slip patterns are engraved on the outer side wall of the roller 63. The sliding direction of the ejector rod 62 is the direction of pressing against the casting on the conveyor wheel 2. The ejector rod 62 is pushed to slide out by driving the electric cylinder 641, thereby driving the casting to rotate, so that the part where one side of the casting is in contact with the conveyor wheel 2 and the limiting wheel 3 is staggered and separated from the limiting wheel 3 and the conveyor wheel 2, so that the high-pressure spray head 4 can wash this part. After the two ejector rods 62 are sequentially pushed up by sliding, all six surfaces of the casting are cleaned and can be transported to the grinding process.

[0039] Referring to Figure 1 , at the same time, a control module is fixedly installed on the frame 1, and all the above-mentioned electric control devices are controlled to start and stop by this control module, but the control priority of the switch 52 is higher than that of the control module.

[0040] The implementation principle of the pre-treatment equipment for die-cast parts before grinding in the embodiment of the present application is as follows: after the workpiece is placed on the conveyor wheel 2 at the loading part 11 of the frame 1, the driving motor 51 is started through the control module to drive the conveyor wheel 2 to rotate to transport the workpiece to the cleaning part 12 and then stop. The high-pressure spray head 4 sprays high-pressure water flow to wash the workpiece. After the first-stage washing is completed, the driving cylinder 651 pushes the mounting frame 61 to the working position, and then the two driving electric cylinders 641 are alternately started to push the workpiece to rotate. After the workpiece is completely cleaned, the mounting frame 61 is reset, and the control motor is started again to transport the workpiece to the discharging part for discharging.

[0041] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A die casting pre-treatment device before grinding, characterized in that: The invention comprises a frame (1), on which a plurality of transmission wheels (2) are rotatably mounted, the transmission wheels (2) being evenly divided into at least two groups, and the transmission wheels (2) in any group are arranged at intervals along the material transport direction of the frame (1), and the transmission wheels (2) are used to transport workpieces, and the frame (1) is also rotatably mounted with a plurality of limiting wheels (3), the limiting wheels (3) being evenly divided into at least two groups, and the arrangement direction of the limiting wheels (3) in any group is parallel to the arrangement direction of the transmission wheels (2), and the two groups The conveying wheel (2) is located between the two groups of limiting wheels (3), and the limiting wheels (3) are used to limit the deviation of the workpiece during the conveying process. The frame (1) is provided with a driving device (5) for driving the conveying wheel (2) to rotate, and the frame (1) is divided into a loading part (11), a cleaning part and a unloading part (13). A plurality of high-pressure nozzles (4) are installed at the cleaning part of the frame (1), and the high-pressure nozzles (4) surround the conveying wheel (2) and the limiting wheel (3) of the cleaning part of the frame (1).

2. The die casting pre-grinding pretreatment equipment according to claim 1, characterized in that: Any group of the limiting wheels (3) and any group of the transmitting wheels (2) correspond one to one, and the corresponding limiting wheels (3) and transmitting wheels (2) are defined as a group of roller (63) groups. The axes of the transmitting wheels (2) and the limiting wheels (3) of the same group of rollers (63) are located on the same circle. The axes of the transmitting wheels (2) and the limiting wheels (3) of the same group of rollers (63) intersect with the center of the circle where the axis is located. The transmitting wheels (2) and the limiting wheels (3) of the roller (63) group are located on the lower half of the circle.

3. The die casting pre-grinding pretreatment equipment according to claim 1, characterized in that: An adjustment mechanism (6) is provided on the cleaning portion of the frame (1), and the adjustment mechanism (6) is used to drive the casting to rotate so as to be misaligned with the transmission wheel (2) and the limiting wheel (3).

4. The die casting pre-grinding pretreatment equipment according to claim 3, characterized in that: The adjustment mechanism (6) comprises two push rods (62) slidably mounted on the frame (1), the push rods (62) being located on both sides of the transmission wheel (2) respectively, and the push rods (62) being located in the cleaning portion of the frame (1), and a first driving mechanism (64) being provided on the frame (1) for driving the push rods (62) to slide, the push rods (62) sliding in a direction of the casting pressed against the transmission wheel (2).

5. The die casting pre-grinding pretreatment equipment according to claim 4, characterized in that: A roller (63) is rotatably mounted on one end of the push rod (62) pressed against the casting, and the rotation plane of the roller (63) is parallel to the rotation plane of the push rod (62) pushing the casting to rotate.

6. The die casting pre-grinding pretreatment equipment according to claim 5, characterized in that: The roller (63) is made of rubber, and a non-slip pattern is provided on the surface of the roller (63).

7. The die casting pre-grinding pretreatment equipment according to claim 4, characterized in that: A plurality of mounting frames (61) corresponding one to each of the push rods (62) are slidably mounted on the frame (1); the push rods (62) are slidably mounted on the mounting frames (61); a second driving mechanism (65) for driving the mounting frames (61) to slide is provided on the frame (1); when the mounting frames (61) slide to a predetermined position, the push rods (62) are in a working position.

8. The die casting pre-grinding pretreatment equipment according to claim 1, characterized in that: The driving device (5) comprises a plurality of driving motors (51) mounted inside the frame (1), the driving motors (51) being transmission-connected to the transmission wheels (2) in a one-to-one correspondence, and the driving motors (51) of any group of transmission wheels (2) are controlled by a switch (52), and the switch (52) is mounted on the frame (1).

9. The die casting pre-grinding pretreatment equipment according to claim 7, characterized in that: A water retaining shell (66) is mounted on the mounting frame (61); the first driving mechanism (64) comprises a driving electric cylinder (641); the driving electric cylinder (641) is mounted on the frame (1) and is located in the water retaining shell (66); a connecting hole (621) is provided on the top rod (62); one end of the water retaining shell (66) is slidably mounted in the connecting hole (621); and a piston rod of the driving electric cylinder (641) slides through the water retaining shell (66) and is connected to the bottom of the connecting hole (621).

Images