Sand blasting equipment for engine shell

Abstract

According to the sand blasting equipment for the engine shell, when the target engine shell is driven to rotate, the first sand blasting nozzle arranged on the U-shaped rod on the side is synchronously driven to conduct side face sand blasting, and along with rotation of the target engine shell, the U-shaped rod reciprocates in the radial direction; the first sand blasting nozzle can be driven to be close to and far away from the central point periodically, so that the distance from the first sand blasting nozzle to the corresponding side face of the target engine shell is always kept within the preset range along with the position change of the side face of the target engine shell in the radial direction, and the consistency of the sand blasting quality of all parts is ensured. And meanwhile, the first sand blasting nozzle can do pitching motion in the radial reciprocating motion, and the sand blasting consistency of the upper area and the lower area of the side face of the target engine shell is ensured. The sand blasting equipment for the engine shell can effectively adapt to the special-shaped structure of the engine shell, uniform sand blasting is automatically achieved, the sand blasting production efficiency is improved, and the implementation cost of path tracking is low.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, in particular to a sandblasting device for an engine casing. Background Art

[0002] Sandblasting is an important process in the production of engine casings and can be used for cleaning, rust removal, deburring, coating pretreatment or strengthening of engine casings.

[0003] The engine casing is a special-shaped structure. To ensure consistent sandblasting, the pressure differences across the surface must be within a certain range. Existing precision sandblasting techniques use laser scanning or CAD models to generate 3D point cloud data of the workpiece, combined with a six-axis robotic arm to precisely control the blasting path and distance. This produces effective sandblasting but is costly. For sandblasting applications with lower precision requirements, manual labor is often used, resulting in low production efficiency. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a sandblasting device for an engine casing to solve the problem in the prior art that the automated sandblasting equipment is high in cost and the manual operation has low production efficiency.

[0005] The present invention provides a sandblasting device for an engine casing, comprising: A housing, the housing comprising an upper cover; a drive module, fixedly disposed in the space below the floor of the housing; A mounting platform is provided on the floor of the housing and is used for mounting and fixing the target engine housing. The mounting platform is in transmission connection with the driving module and is used for rotating under the drive of the driving module. A U-shaped rod, wherein the two arms of the U-shaped rod are horizontally arranged and arranged up and down, the lower arm of the U-shaped rod is transmission-connected to the driving module so as to reciprocate linearly under the drive of the driving module, and the upper arm of the U-shaped rod is arranged to point to the mounting platform; a first sandblasting nozzle, which is arranged at the end of the upper arm of the U-shaped rod and is rotatably connected to the upper arm of the U-shaped rod so as to be movable in pitch and fall; a lever rotatably connected to the upper arm of the U-shaped rod, wherein a first end of the lever is movably connected to the first sandblasting nozzle, so that when the lever pitches, the first sandblasting nozzle can be driven to pitch, for sandblasting the side of the target engine casing; a corrugated guide rod fixedly disposed on the housing and arranged parallel to the upper arm of the U-shaped rod, wherein a wave-shaped guide groove is provided in the corrugated guide rod, and the second end of the lever is slidably disposed in the wave-shaped guide groove; The second sandblasting nozzle is arranged on the upper cover so as to sandblast the target engine casing from above when the upper cover is closed.

[0006] Optionally, the driving module includes a reciprocating screw rod, and the lower arm of the U-shaped rod is fixedly connected to a threaded slider and is movably connected to the reciprocating screw rod through the threaded slider.

[0007] Optionally, a fin-shaped portion is formed on the side wall of the shell protruding outward, the U-shaped rod can be embedded in the fin-shaped portion, and the corrugated guide rod is arranged in the fin-shaped portion.

[0008] Optionally, a mounting slot is provided in the upper arm of the U-shaped rod, and the lever is provided in the mounting slot.

[0009] Optionally, the driving module includes a dual-axis driving motor, the vertical output shaft of the dual-axis driving motor is used to drive the mounting platform, and the horizontal output shaft of the dual-axis driving motor is used to drive the reciprocating screw.

[0010] Optionally, the interior of the mounting platform is a hollow structure, and a transmission assembly and a clamp extending outward are provided inside. The clamp extends horizontally, and the end is bent upward to form an inverted hook structure. There are multiple clamps arranged around, and they are aligned one by one with the setting positions of the protruding ear plates on the target engine casing.

[0011] Optionally, the base of the clamping jaw includes a guide plate, and an obliquely arranged guide groove is provided in the guide plate; The transmission assembly includes a driving cylinder and a transmission frame, the driving cylinder is vertically arranged, the transmission frame is horizontally arranged and fixedly connected to the movable end of the driving cylinder, the transmission frame includes branches extending to each of the clamping jaws, and each branch is slidably arranged in the corresponding guide groove.

[0012] Optionally, the guide plate is a clamping plate structure, the branches of the transmission frame are clamped in the clamping plate structure, and the branches of the transmission frame extend to both sides to be arranged in the corresponding guide grooves.

[0013] Optionally, the upper cover is connected to the main body of the shell in a flippable manner, and a switch driving cylinder is further provided on the shell, with both ends of the switch driving cylinder being hinged to the main body of the shell and the upper cover respectively.

[0014] Optionally, a transparent observation window is further provided on the shell.

[0015] The sandblasting equipment for the engine casing provided by the present invention, when driving the target engine casing to rotate, also synchronously drives the first sandblasting nozzle set on the U-shaped rod on the side to perform side sandblasting, and as the target engine casing rotates, the U-shaped rod moves back and forth in the radial direction, which can drive the first sandblasting nozzle to periodically approach and move away from the center point, thereby following the radial position change of the side of the target engine casing, so that the distance from the first sandblasting nozzle to the corresponding side of the target engine casing is always maintained within a preset range, ensuring the consistency of the sandblasting quality of each part. At the same time, the first sandblasting nozzle can pitch and roll while moving back and forth in the radial direction, ensuring the consistency of the sandblasting of the upper and lower areas of the side of the target engine casing. The sandblasting equipment for the engine casing provided by the present invention can effectively adapt to the special-shaped structure of the engine casing, automatically realize uniform sandblasting, improve the sandblasting production efficiency, and the implementation cost of path tracking is low, which can effectively reduce the hardware cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the sandblasting equipment for the engine casing in an embodiment of the present invention; Figure 2 Schematic diagram of the partial structure of the sandblasting equipment for the engine casing in an embodiment of the present invention; Figure 3 This is a schematic structural diagram of a drive assembly of a first sandblasting nozzle of a sandblasting device for an engine casing in an embodiment of the present invention; Figure 4 This is a schematic structural diagram of a mounting platform for a sandblasting device for an engine housing according to an embodiment of the present invention; Figure 5 The figure is a schematic structural diagram of the upper cover portion of the sandblasting equipment for the engine casing in an embodiment of the present invention.

[0017] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] In order to solve the problem of high cost and low production efficiency of manual operation of automated sandblasting equipment in the prior art, the present invention provides a sandblasting device for an engine casing. When driving the target engine casing to rotate, it also synchronously drives the first sandblasting nozzle set on the side U-shaped rod to perform side sandblasting. As the target engine casing rotates, the U-shaped rod reciprocates in the radial direction, which can drive the first sandblasting nozzle to periodically approach and move away from the center point, thereby following the radial position change of the side of the target engine casing, so that the distance from the first sandblasting nozzle to the corresponding side of the target engine casing is always maintained within a preset range, ensuring the consistency of the sandblasting quality of each part. At the same time, the first sandblasting nozzle can pitch and roll while reciprocating in the radial direction, ensuring the consistency of the sandblasting of the upper and lower areas of the side of the target engine casing. As a whole, it can effectively adapt to the special-shaped structure of the engine casing, automatically realize uniform sandblasting, improve sandblasting production efficiency, and the implementation cost of path tracking is low, which can effectively reduce hardware costs.

[0022] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, the sandblasting equipment of this embodiment is provided with a closed environment by a shell 100. The shell 100 includes an upper cover 110 for opening and closing the closed environment so as to facilitate the taking and placing of the engine casing 200. A driving module is provided in the space under the floor of the shell 100, and a mounting platform 130 is also provided on the floor for mounting and fixing the engine casing 200. The mounting platform 130 is transmission-connected to the driving module and is used to rotate under the drive of the driving module, thereby driving the engine casing 200 to rotate.

[0023] A first sandblasting head 121 (the sand supply line is not shown) is positioned to the side of the engine housing 200, corresponding to the side of the engine housing 200. This head is used to sandblast the side of the engine housing 200 when the engine housing 200 rotates. A second sandblasting head 111 is positioned on the upper cover 110. When the upper cover 110 is closed, the second sandblasting head 111 is directed toward the top surface of the engine housing 200, thereby sandblasting the top surface of the engine housing 200. The first sandblasting head 121 and the second sandblasting head 111 are staggered in the circumferential direction to avoid interference.

[0024] The bottom of the housing 100 is also provided with a waste discharge port (not shown in the figure) for discharging waste after sandblasting.

[0025] like Figure 2 and Figure 3 As shown, the driving assembly of the first sandblasting head 121 includes a U-shaped rod 122, a lever 123 and a corrugated guide rod 124, which are used to drive the first sandblasting head 121 to reciprocate along the radial direction of the shell 200 (the radial direction of the rotating surface of the mounting platform 130), and to control the pitch movement of the first sandblasting head 121 to adapt to the side position change when the engine shell 200 rotates, and to uniformly sandblast the side.

[0026] The two arms of the U-shaped rod 122 are arranged horizontally and arranged up and down. The lower arm of the U-shaped rod 122 is connected to the driving module so as to reciprocate linearly under the drive of the driving module. The upper arm of the U-shaped rod is set to point to the mounting platform 130, so as to control the first sandblasting head 121 to reciprocate in the direction of the engine casing 200 fixed on the mounting platform 130.

[0027] By adjusting the rotational speed of the mounting platform 130 and the reciprocating period of the U-shaped rod 122, adaptation to the engine housing 200 can be achieved. For example, in this embodiment, the engine housing 200 is elongated. After one rotation of the engine housing 200, its outer surface has two radial peaks. The U-shaped rod 122 reciprocates twice, meaning the reciprocating period of the U-shaped rod 122 is half that of the mounting platform 130. This allows for uniform sandblasting of the elongated engine housing 200.

[0028] The first sandblasting head 121 is arranged at the end of the upper arm of the U-shaped rod 122 and is rotatably connected to the upper arm of the U-shaped rod 122 so as to be able to pitch and roll; the lever 123 is rotatably connected to the upper arm of the U-shaped rod 122, and the first end of the lever 123 is movably connected to the first sandblasting head 121 so that when the lever 123 pitches and rolls, the first sandblasting head 121 can be driven to pitch and roll, which is used for uniform sandblasting on the side of the target engine casing.

[0029] The corrugated guide rod 124 is fixed to the housing 100 and arranged parallel to the upper arm of the U-shaped rod 122. A wavy guide groove is provided in the corrugated guide rod 124, and the second end of the lever 123 is slidably disposed in the wavy guide groove. When the U-shaped rod 122 moves linearly, the lever 123 moves with the U-shaped rod 122. Simultaneously, the second end of the lever 123 slides in the wavy guide groove, causing the second end of the lever 123 to synchronously pitch, thereby driving the first sandblasting nozzle 121 connected to the first end of the lever 123 to pitch.

[0030] To achieve the reciprocating drive of the U-shaped rod 122, in this embodiment, as shown in FIG. Figure 2 and Figure 3As shown, the drive module includes a reciprocating screw rod 142, and the lower arm of the U-shaped rod 122 is fixedly connected to a threaded slider 1221, and is movably connected to the reciprocating screw rod 142 through the threaded slider 1221. By driving the reciprocating screw rod 142 to rotate, the reciprocating motion of the U-shaped rod 122 can be driven.

[0031] To facilitate the regular movement of the U-shaped rod 122, in this embodiment, a fin-shaped portion 102 is formed on the side wall of the housing 100. The fin-shaped portion 102 is hollow, and the U-shaped rod 122 can be embedded in the fin-shaped portion 102. The corrugated guide rod 124 is disposed within the fin-shaped portion 102. The inner thickness of the fin-shaped portion 102 is consistent with the thickness of the U-shaped rod 122, which can provide guidance for the movement of the U-shaped rod 122 and improve the regularity and smoothness of the movement of the U-shaped rod 122.

[0032] The end of the fin-shaped portion 102 pointing toward the mounting platform 130 may be provided with an opening for leading out the two arms of the U-shaped rod 122, thereby reducing the risk of sandblasting splashing into the fin-shaped portion 102 and causing blockage. Alternatively, the fin-shaped portion 102 may be open, with an inclined surface extending from the bottom to facilitate the natural outflow of sandblasting material splashed into the fin-shaped portion 102, thereby preventing blockage and obstruction of the movement of the U-shaped rod 122.

[0033] To facilitate the installation of the lever 123, in this embodiment, a mounting groove is provided in the upper arm of the U-shaped rod 122, the lever 123 is arranged in the mounting groove, and the rotating shaft of the lever 123 is installed on the two walls of the mounting groove, which can ensure the installation stability of the lever 123. The mounting groove can be an open structure or a closed structure above and below to avoid the accumulation of sputtered sandblasting therein and hindering the reliability of the movement of the lever 123.

[0034] To facilitate simultaneous driving of the mounting platform 130 and the reciprocating screw 142, in this embodiment, the drive module includes a dual-axis drive motor 141. The vertical output shaft of the dual-axis drive motor 141 is used to drive the mounting platform 130, and the horizontal output shaft of the dual-axis drive motor 141 is used to drive the reciprocating screw 142. The use of the dual-axis drive motor 141 also facilitates the coordination and control of the speed of the reciprocating screw 142 and the mounting platform 130.

[0035] In order to facilitate the fixing of the engine housing 200, in this embodiment, as shown in FIG. Figure 4 As shown, the interior of the mounting platform 130 is a hollow structure, and a transmission component is provided inside, as well as a clamping claw 131 extending outward. The clamping claw 131 extends horizontally, and the end is bent upward to form an inverted hook structure. There are multiple clamping claws 131 arranged around, and they are aligned one by one with the setting positions of the protruding ear plates 201 on the engine housing 200 (used to set the mounting screw holes, which can actually be selected according to the protruding structure of the adapted engine housing).

[0036] When fixing the engine casing 200, the control clamp 131 is extended, the engine casing is lowered, and then the control clamp 131 is retracted. The protruding ear plate 201 of the engine casing 200 can be hooked by the inverted hook structure of the clamp 131, and the engine casing 200 is pressed and fixed on the mounting platform 130.

[0037] In order to realize the driving of the clamping jaw 131, in this embodiment, the root of the clamping jaw 131 includes a guide plate, and an inclined guide groove is opened in the guide plate; the transmission assembly includes a driving cylinder 132 and a transmission frame 133, the driving cylinder 132 is vertically arranged, and the transmission frame 133 is horizontally arranged and fixedly connected to the movable end of the driving cylinder, and the transmission frame 133 includes branches extending to each clamping jaw, and each branch is slidably arranged in the corresponding guide groove.

[0038] The drive cylinder 132 drives the transmission frame 133 up and down. The inclined guide slots on the guide plate at the base of the clamping jaw 131 convert this up and down movement into horizontal movement of the clamping jaw 133, thereby driving the clamping jaw 133 to extend or retract. Furthermore, the clamping force between the clamping jaw 133 and the engine housing 200 is applied vertically, which unaffects the extension and retraction of the clamping jaw 133. This ensures smooth extension and retraction of the clamping jaw 133, reduces the power requirement for the drive cylinder 132, and lowers implementation costs.

[0039] In order to improve the driving stability of the transmission frame 133 on the clamping jaw 131, in this embodiment, the guide plate is a clamping plate structure, and the branches of the transmission frame 133 are clamped in the clamping plate structure, and the branches of the transmission frame 133 extend to both sides to be set in the corresponding guide grooves. The clamping plate structure can improve the linearity of the movement between the branches of the transmission frame 133 and the clamping jaw 132, thereby ensuring the reliability of the telescopic movement of the clamping jaw 131 and the guiding stability.

[0040] To facilitate opening, Figure 5 As shown, in this embodiment, the upper cover 110 is connected to the main body of the shell 100 in a flippable manner, and a switch driving cylinder 112 is further provided on the shell 100. The two ends of the switch driving cylinder 112 are hinged to the main body of the shell 100 and the upper cover 110 respectively, so that the opening and closing of the upper cover 110 can be controlled by the telescopic action of the switch driving cylinder 112, and the state maintaining ability of the driving cylinder can be used to maintain the switch state of the upper cover 110, so as to avoid the upper cover 110 being disturbed by vibration when it is opened and accidentally closed.

[0041] In order to facilitate confirmation of the sandblasting working status, in this embodiment, a transparent observation window 101 is further provided on the housing 100 .

[0042] The sandblasting equipment for the engine casing provided by the present invention, when driving the target engine casing to rotate, also synchronously drives the first sandblasting nozzle set on the U-shaped rod on the side to perform side sandblasting, and as the target engine casing rotates, the U-shaped rod reciprocates in the radial direction, which can drive the first sandblasting nozzle to periodically approach and move away from the center point, thereby following the radial position change of the side of the target engine casing, so that the distance from the first sandblasting nozzle to the corresponding side of the target engine casing is always maintained within a preset range, ensuring the consistency of the sandblasting quality of each part. At the same time, the first sandblasting nozzle can pitch and roll while reciprocating in the radial direction, ensuring the consistency of the sandblasting of the upper and lower areas of the side of the target engine casing. As a whole, it can effectively adapt to the special-shaped structure of the engine casing, automatically achieve uniform sandblasting, improve sandblasting production efficiency, and the implementation cost of path tracking is low, which can effectively reduce hardware costs.

[0043] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The above-described embodiments merely represent several specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A sandblasting device for an engine casing, characterized in that: include: A housing, the housing comprising an upper cover; a drive module, fixedly disposed in the space below the floor of the housing; A mounting platform is provided on the floor of the housing and is used for mounting and fixing the target engine housing. The mounting platform is in transmission connection with the driving module and is used for rotating under the drive of the driving module. A U-shaped rod, wherein the two arms of the U-shaped rod are horizontally arranged and arranged up and down, the lower arm of the U-shaped rod is transmission-connected to the driving module so as to reciprocate linearly under the drive of the driving module, and the upper arm of the U-shaped rod is arranged to point to the mounting platform; a first sandblasting nozzle, which is arranged at the end of the upper arm of the U-shaped rod and is rotatably connected to the upper arm of the U-shaped rod so as to be movable in pitch and fall; a lever rotatably connected to the upper arm of the U-shaped rod, wherein a first end of the lever is movably connected to the first sandblasting nozzle, so that when the lever pitches, the first sandblasting nozzle can be driven to pitch, for sandblasting the side of the target engine casing; a corrugated guide rod fixedly disposed on the housing and arranged parallel to the upper arm of the U-shaped rod, wherein a wave-shaped guide groove is provided in the corrugated guide rod, and the second end of the lever is slidably disposed in the wave-shaped guide groove; The second sandblasting nozzle is arranged on the upper cover so as to sandblast the target engine casing from above when the upper cover is closed.

2. The sandblasting equipment for the engine casing according to claim 1, characterized in that: The driving module includes a reciprocating screw rod, and the lower arm of the U-shaped rod is fixedly connected to a threaded slider and is movably connected to the reciprocating screw rod through the threaded slider.

3. The sandblasting equipment for the engine casing according to claim 1, characterized in that: The side wall of the shell protrudes outward to form a fin-shaped portion, the U-shaped rod can be embedded in the fin-shaped portion, and the corrugated guide rod is arranged in the fin-shaped portion.

4. The sandblasting equipment for an engine casing according to claim 1, characterized in that: An installation slot is provided in the upper arm of the U-shaped rod, and the lever is provided in the installation slot.

5. The sandblasting equipment for the engine casing according to claim 2, characterized in that: The driving module includes a dual-axis driving motor, the vertical output shaft of the dual-axis driving motor is used to drive the mounting platform, and the horizontal output shaft of the dual-axis driving motor is used to drive the reciprocating screw.

6. The sandblasting equipment for an engine casing according to claim 1, characterized in that: The interior of the mounting platform is a hollow structure, and a transmission component and a clamp extending outward are provided inside. The clamp extends horizontally, and the end is bent upward to form an inverted hook structure. There are multiple clamps arranged around, and they are aligned one by one with the setting positions of the protruding ear plates on the target engine casing.

7. The sandblasting equipment for the engine casing according to claim 6, characterized in that: The base of the clamping jaw includes a guide plate, and an obliquely arranged guide groove is provided in the guide plate; The transmission assembly includes a driving cylinder and a transmission frame, the driving cylinder is vertically arranged, the transmission frame is horizontally arranged and fixedly connected to the movable end of the driving cylinder, the transmission frame includes branches extending to each of the clamping jaws, and each branch is slidably arranged in the corresponding guide groove.

8. The sandblasting equipment for the engine casing according to claim 7, characterized in that: The guide plate is a clamping plate structure, the branches of the transmission frame are clamped in the clamping plate structure, and the branches of the transmission frame extend to both sides to be arranged in the corresponding guide grooves.

9. The sandblasting equipment for an engine casing according to claim 1, characterized in that: The upper cover is connected to the main body of the shell in a flippable manner. A switch driving cylinder is further provided on the shell, and two ends of the switch driving cylinder are hinged to the main body of the shell and the upper cover respectively.

10. The sandblasting equipment for an engine casing according to claim 1, characterized in that: The shell is also provided with a transparent observation window.

Images