Engine cylinder crankshaft hole boring device

Abstract

The invention discloses an engine cylinder crankshaft hole boring device, and relates to the technical field of engine cylinder machining. The device comprises a device body, a mounting plate is fixedly mounted in the device body, a first rotating shaft is rotatably connected to the mounting plate, a grooved wheel intermittent driving mechanism for driving the first rotating shaft to rotate is arranged on the mounting plate, a plurality of connecting plates are fixedly mounted on the first rotating shaft in the perimeter direction of the first rotating shaft, and placing plates are rotatably connected to the connecting plates; a clamping assembly is arranged on the placing plate, and a horizontal assembly for driving the placing plate to be continuously horizontal and a boring assembly are arranged on the mounting plate; the fixing plate is fixedly installed on the device body, the fixing frame is arranged on the fixing plate in a sliding mode, the cylinder boring machine is fixedly installed on the fixing frame and arranged opposite to the containing plate, and the moving mechanism drives the fixing frame to slide. The placing plate is forced to keep horizontal during rotation through the horizontal assembly, it is ensured that the machining reference of the cylinder crankshaft hole is perpendicular to the axis of the boring cutter, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of engine cylinder processing, and in particular relates to a device for boring a crankshaft hole of an engine cylinder. Background Art

[0002] The engine block is the main structure of the engine. It integrates the cylinder and crankcase into one integral casting, forming the supporting framework for installing core components such as the piston and crankshaft. The machining accuracy of the engine block crankshaft hole directly affects the smooth operation of the crankshaft. Modern internal combustion engines require the crankshaft hole coaxiality ≤ 0.015mm and cylindricity ≤ 0.01mm (ISO 1101 standard). With the popularization of turbocharging technology, the explosion pressure that the cylinder block withstands has increased to over 15MPa, placing more stringent requirements on the uniformity of the crankshaft hole wall thickness and surface roughness (Ra 0.4μm or less). However, existing engine block crankshaft hole boring devices have poor flexibility and a single boring method. Most of the boring methods are manual and handheld, which is also highly dangerous and unstable.

[0003] A Chinese patent with patent publication number CN211516142U discloses a device for boring crankshaft holes in an engine cylinder block. The device adopts a dual mechanical stable clamping design. One side is fixed to fix the part to be processed, and the other side is movable. After the boring machine is fixedly installed, it can be pushed to bore the part to be processed fixed on the other side. Both sides are liftable structures with good flexibility and good overall processing stability. However, the device requires manual fixation of the engine cylinder block before processing can be carried out. The fixing steps are relatively cumbersome, thereby reducing the overall processing efficiency.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an engine cylinder crankshaft hole boring device, which solves the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A device for boring a crankshaft hole in an engine cylinder block comprises: a device body, a mounting plate fixedly mounted therein, a first rotating shaft being rotatably connected to the mounting plate, a sheave intermittent drive mechanism for driving the first rotating shaft to rotate being provided on the mounting plate, a plurality of connecting plates fixedly mounted on the first rotating shaft along its circumference, a placement plate being rotatably connected to each of the plurality of connecting plates, a clamping assembly being provided on the placement plate, and a leveling assembly being provided on the mounting plate for driving the placement plate to remain continuously horizontal;

[0008] The boring assembly includes a fixed plate fixedly mounted on the device body, a fixed frame slidably arranged on the fixed plate, a boring cylinder machine fixedly mounted on the fixed frame and arranged relative to the placement plate, and a moving mechanism for driving the fixed frame to slide.

[0009] Optionally, a plurality of the placement plates are sequentially arranged in pairs along the circumference direction of the first rotating shaft to form a group, and the horizontal component includes:

[0010] a second rotating shaft, which is rotatably mounted on the connecting plate, wherein one end of the second rotating shaft is fixedly connected to the placement plate, and the other end of the second rotating shaft is fixedly mounted with an adjustment plate;

[0011] A guide plate is slidably mounted on the mounting plate, wherein the mounting plate is provided with a guide groove for the guide plate to slide, and a third rotating shaft is rotatably connected between the guide plate and the adjustment plate;

[0012] A plurality of connecting rods are movably connected between the two placement plates in each group.

[0013] Optionally, the guide groove is coaxially arranged with the first rotating shaft, and the guide plate is an arc-shaped structure coaxially arranged with the first rotating shaft.

[0014] Optionally, a shielding cover is provided on the fixed frame so as to slide relative to the placement plate. The shielding cover is sleeved on the boring machine. The shielding cover has a U-shaped structure. A plurality of sets of elastic telescopic rod mechanisms are provided between the shielding cover and the boring machine. The shielding cover can cover the placement plate.

[0015] Optionally, a slot is provided on the shielding cover to be inserted into the connecting plate.

[0016] Optionally, a through slot that can be clamped on the connecting rod is provided on the shielding cover.

[0017] Optionally, a support assembly is further included, which is arranged on the mounting plate. The support assembly includes a support plate slidably arranged on the mounting plate, a resistance plate fixedly installed on the support plate, and a roller rotatably arranged at the bottom of the resistance plate. The support plate is a U-shaped structure, and the support plate can resist the placement plate. A resistance assembly that can resist the roller is fixedly installed on the fixed frame.

[0018] Optionally, the interference component is slidably arranged on the fixed plate, and the interference component includes a horizontal plate and an inclined block that are fixedly connected. The horizontal plate is fixedly installed on the fixed frame, and the inclined block interferes with the roller.

[0019] Optionally, a mounting groove for mounting the clamping assembly is provided at the bottom of the placement plate, and a snap plate that can be clamped in the mounting groove at the bottom of the placement plate is relatively fixedly mounted on the support plate.

[0020] Optionally, the clamping assembly includes:

[0021] a gear, which is rotatably disposed in the mounting groove;

[0022] Two drive plates are arranged on the placement plate for relative sliding along the gear, and the two drive plates are fixedly connected to the racks meshing with the gears. A cylinder is fixedly installed in the mounting groove, and the telescopic end of the cylinder is fixedly connected to one of the drive plates;

[0023] A driving rod passes through and is movably arranged on the placement plate. One end of the driving rod is fixedly connected to the driving plate, and the other end is fixedly connected to a clamping plate. The clamping plate is slidably arranged on the placement plate.

[0024] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0025] 1. By setting up a horizontal component, a boring component, and a clamping component, the horizontal component forces the placement plate to remain horizontal during rotation, ensuring that the machining datum of the cylinder crankshaft hole is perpendicular to the axis of the boring cutter, avoiding coaxiality and cylindricity deviations caused by workpiece tilt. The use of automated clamping and mechanical drive improves overall machining efficiency and has high versatility, solving the problems of low efficiency, unstable precision, and frequent manual intervention of existing devices.

[0026] 2. The shielding cover, slots and through slots are provided to block the chips and coolant generated during the boring process in all directions, preventing them from splashing onto the surface of the engine cylinder or entering the crankshaft hole, thus avoiding problems such as surface scratches and hole size deviation caused by chip residue, and effectively improving the machining accuracy of the crankshaft hole and the surface quality of the cylinder block;

[0027] 3. By providing a support component and a resistance component, the stability of the placement plate can be enhanced, the processing accuracy can be improved, automatic support and reset can be achieved, and the processing efficiency can be improved.

[0028] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 Schematic diagram of the structure inside the device body of the present invention;

[0032] Figure 3 Schematic diagram of the structure of the boring assembly of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the sheave intermittent drive mechanism of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the placement plate of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the support assembly of the present invention;

[0036] Figure 7 For the present invention Figure 5 Front view of

[0037] Figure 8 This is a structural diagram of the card slot and the through slot of the present invention;

[0038] Figure 9 For the present invention Figure 8 Structural diagram from another perspective;

[0039] Figure 10 This is a schematic diagram of the structure of the shielding cover of the present invention after being cut open;

[0040] Figure 11 It is a structural schematic diagram of the clamping assembly of the present invention;

[0041] Figure 12 For the present invention Figure 11 Structural diagram from another perspective;

[0042] Figure 13 It is a structural schematic diagram of the elastic telescopic rod assembly of the present invention.

[0043] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0044] 1. Device body; 2. Grooved wheel intermittent drive mechanism; 3. Mounting plate; 4. Boring assembly; 41. Fixing plate; 42. Moving mechanism; 43. Fixing frame; 44. Cylinder boring machine; 5. Support assembly; 51. Support plate; 52. Interference plate; 53. Roller; 6. Clamping assembly; 61. Clamping plate; 62. Drive rod; 63. Drive plate; 64. Cylinder; 65. Rack; 66. Gear; 7. Horizontal assembly; 71. Guide groove; 72. Connecting rod; 73. Second rotating shaft ;74. Adjustment plate;75. Third rotating shaft;76. Guide plate;8. Elastic telescopic rod mechanism;81. Fixed cylinder;82. Movable plate;83. Movable groove;84. Spring;85. Telescopic rod;9. Interference assembly;91. Horizontal plate;92. Oblique block;10. First rotating shaft;11. Placement plate;12. Connecting plate;13. Guide bucket;14. Baffle;15. Through hole;16. Shielding cover;17. Slot;18. Through slot;19. Buckle plate;20. Mounting slot.

[0045] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] The present invention will now be described in further detail with reference to the accompanying drawings.

[0047] See also Figure 1-13 As shown, in this embodiment, a device for boring a crankshaft hole of an engine cylinder block is provided, comprising a device body 1, wherein a mounting plate 3 is fixedly installed inside the device body, a first rotating shaft 10 is rotatably connected to the mounting plate 3, a groove wheel intermittent driving mechanism 2 for driving the first rotating shaft 10 to rotate is provided on the mounting plate 3, a plurality of connecting plates 12 are fixedly installed on the first rotating shaft 10 along its circumference direction, a placement plate 11 is rotatably connected to each of the plurality of connecting plates 12, a clamping assembly 6 is provided on the placement plate 11, a horizontal assembly 7 for driving the placement plate 11 to be continuously horizontal is provided on the mounting plate 3, a boring assembly 4, which comprises a fixed plate 41 fixedly installed on the device body 1, a fixed frame 43 slidably arranged on the fixed plate 41, a cylinder boring machine 44 fixedly mounted on the fixed frame 43 and arranged relative to the placement plate 11, and a moving mechanism 42 for driving the fixed frame 43 to slide.

[0048] Specifically, in this embodiment, the placement plate 11 and the connecting plate 12 each have six groups (not limited in other embodiments), and two baffles 14 are fixedly installed along the connecting plate 12 on the placement plate 11. When the cylinder body is placed on the placement plate 11, the cylinder body contacts the baffle 14 and is then fixed by the clamping assembly 6. The baffle 14 can support the cylinder body during cylinder processing. At the same time, the boring tool of the boring cylinder machine 44 is set relative to the cylinder body on the bottom placement plate 11 of the mounting plate 3. This is a processing station. The loading and unloading stations, etc. can be set in the device body 1 relative to the other multiple placement plates 11; in the initial state, when the groove wheel intermittent drive mechanism 2 is not started, the first rotating shaft 10 is stationary, One of the placement plates 11 stays at the loading station (usually the front end of the device) and is in a horizontal state (guaranteed by the horizontal component 7). The operator or the manipulator places the engine cylinder body on the placement plate 11 of the loading station and quickly fixes the cylinder body through the clamping component 6. There is no need to manually adjust the reference piece by piece. The first rotating shaft 10 is driven to rotate by the groove wheel intermittent drive mechanism 2, and the first rotating shaft 10 is driven to rotate periodically according to the set angle, so that the placement plate 11 passes through the preset positions such as the loading station, the boring station and the unloading station in turn. During the rotation of the connecting plate 12 with the first rotating shaft 10, the horizontal component 7 forces the placement plate 11 to remain horizontal to avoid the cylinder body tilting and causing the boring reference to deviate. When the placement plate 11 rotates to the boring processing station, the groove wheel intermittent drive mechanism 2 is paused, the first rotating shaft 10 is stationary, and the external controller controls the moving mechanism 42 to drive the fixed frame 43 to slide along the fixed plate 41 toward the placement plate 11, so that the boring tool of the boring cylinder machine 44 is aligned with the crankshaft hole processing position, the boring cylinder machine 44 is started, the spindle drives the boring tool to rotate, and the fixed frame 43 is fed at the set speed to complete the rough boring or fine boring of the crankshaft hole. When a certain placement plate 11 is boring, the other placement plates 11 can be loaded or unloaded synchronously, realizing the "processing-loading-unloading" parallel operation, shortening the non-processing time. After the processing is completed, the groove wheel intermittent drive mechanism 2 is started again, driving the loaded The cylinder body of the workpiece rotates to the unloading station with the placement plate 11. The operator removes the processed cylinder body and transfers it to the next process (such as cleaning and testing). At the same time, a new workpiece is loaded into the vacant loading station to enter the next cycle. The overall structure has simple operation steps and multi-station intermittent drive to improve processing efficiency. The placement plate 11 is forced to remain horizontal during rotation through the horizontal component 7 to ensure that the processing reference (such as the bottom surface) of the cylinder crankshaft hole is perpendicular to the axis of the boring tool, avoiding coaxiality and cylindricity deviations caused by the tilt of the workpiece. The use of automated clamping and mechanical drive improves the overall processing efficiency and has high versatility, solving the problems of low efficiency, unstable accuracy and frequent manual intervention of existing devices.

[0049] It should be noted that, in this embodiment, the groove wheel intermittent drive mechanism 2 includes a groove wheel, a dial and a motor. The moving mechanism 42 can be a screw moving mechanism 42 or a structure that can push the fixed frame 43 to slide along the fixed plate 41 through a cylinder 64. The structure and working principle of the boring machine 44, the groove wheel intermittent drive mechanism 2 and the moving mechanism 42 are all existing technologies and will not be described here. At the same time, a control device for controlling the entire device is provided on the device body 1.

[0050] In this embodiment, if Figure 5 、 Figure 6 、 Figure 7 、 Figure 11 and Figure 12 As shown, multiple placement plates 11 are sequentially formed into a group of two along the circumference direction of the first rotating shaft 10, and the horizontal component 7 includes a second rotating shaft 73, which is rotatably set on the connecting plate 12, one end of the second rotating shaft 73 is fixedly connected to the placement plate 11, and the other end is fixedly installed with an adjustment plate 74, a guide plate 76, which is slidably set on the mounting plate 3, and the mounting plate 3 is provided with a guide groove 71 for the sliding of the guide plate 76, and a third rotating shaft 75 is rotatably connected between the guide plate 76 and the adjustment plate 74, and multiple connecting rods 72, which are movably connected between the two placement plates 11 of each group, the guide groove 71 is coaxially arranged with the first rotating shaft 10, and the guide plate 76 is an arc structure coaxial with the first rotating shaft 10. Specifically, in this embodiment, there are three connecting rods 72, and a connecting rod 72 is rotatably connected between every two placement plates 11 of the six placement plates 11, and each placement plate 11 is movably set in the guide groove 7 through the connecting plate 12 and the guide plate 76. When the second rotating shaft 73 rotates, the second rotating shaft 73 drives the adjusting plate 74 to move. When the adjusting plate 74 moves with the rotation of the second rotating shaft 73, the third rotating shaft 75 drives the guide plate 76 to slide in the guide groove 71. At the same time, during the sliding of the guide plate 76 and the rotation of the adjusting plate 74, the connecting rod 72 works together to ensure that each group of placing plates 11 always maintains a relatively horizontal state. No matter what position the placing plate 11 is in, the horizontal position of the engine cylinder block can be guaranteed to remain unchanged, thereby ensuring the stability of the crankshaft hole processing benchmark. The horizontal component 7 ensures the stability of the engine cylinder block at each station, avoiding the problem of precision deviation such as coaxiality and cylindricity during crankshaft hole processing due to the tilt of the cylinder block.

[0051] In this embodiment, if Figure 3 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 13As shown, a shielding cover 16 is provided on the fixed frame 43 to slide relative to the placement plate 11. The shielding cover 16 is sleeved on the boring cylinder machine 44. The shielding cover 16 is a U-shaped structure. A plurality of elastic telescopic rods 85 mechanisms 8 are provided between the shielding cover 16 and the boring cylinder machine 44. The shielding cover 16 can cover the placement plate 11. A card slot 17 that can be inserted into the connecting plate 12 is provided on the shielding cover 16. A through slot 18 that can be clamped on the connecting rod 72 is provided on the shielding cover 16. Specifically, in this embodiment, the elastic telescopic rod 85 mechanism 8 includes a fixed cylinder 81, a movable plate 82, a spring 84 and a telescopic rod 85. The plate 82 is movably arranged in the fixed cylinder 81, and a movable groove 83 is provided in the fixed cylinder 81 for the movable plate 82 to move. The spring 84 is located in the movable groove 83, and the two ends of the spring 84 are fixedly connected to the movable plate 82 and the bottom of the fixed cylinder 81 respectively. One end of the telescopic rod 85 is fixedly connected to the movable plate 82, and the other end extends to the outside of the fixed cylinder 81. When installing the elastic telescopic rod 85 mechanism 8, the fixed cylinder 81 and the telescopic rod 85 can be fixedly connected to the fixed frame 43 and the shielding cover 16 according to actual conditions. The shielding cover 16 is slidably set on the fixed frame 43 and can be covered on the placement plate 11 of the processing station. Due to the presence of the elastic telescopic rod 85 mechanism 8, the shielding cover 16 and the boring machine 44 remain in a relatively movable state; when the moving mechanism 42 drives the boring machine 44 to move toward the crankshaft hole of the engine cylinder on the placement plate 11, the shielding cover 16 will move synchronously with the movement of the fixing frame 43, and the card slot 17 on the shielding cover 16 can be snapped into the connecting plate 12, and the through slot 18 will be snapped into the connecting rod 72. As the fixing frame 43 moves, the shielding cover 16 contacts the mounting plate 3. At this time, the boring tool of the boring machine 44 is facing and adjacent to the position to be processed of the engine cylinder. As the moving mechanism 42 continues to drive The movable boring machine 44 moves to bore the engine cylinder block. During this process, the relative position between the shielding cover 16 and the boring machine 44 is adjusted by telescopic adjustment through the elastic telescopic rod 85 mechanism 8, and the placement plate 11 is always kept covered to prevent the chips generated during the boring process from splashing onto the placement plate 11 and the cylinder block. When the boring machine 44 bores the crankshaft hole, the high-speed rotating tool will generate a large amount of chips and coolant mixture. At this time, the U-shaped shielding cover 16 can protect the processing area from multiple directions, and confine the chips and coolant to the internal space of the shielding cover 16.

[0052] It should be noted that, in this embodiment, two through slots 18 are provided through the shielding cover 16 and are arranged on both sides of the shielding cover 16 relative to each other. The connecting rod 72 is rotatably set at the center position of the front end of the placement plate 11. When the placement plate 11 is located at the boring processing station, the connecting rod 72 is set at an angle, and the two through slots 18 can be mounted on the connecting rod 72.

[0053] In this embodiment, if Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, it also includes a support assembly 5, which is arranged on the mounting plate 3, the support assembly 5 includes a support plate 51 slidably arranged on the mounting plate 3, a contact plate 52 fixedly mounted on the support plate 51, and a roller 53 rotatably arranged at the bottom of the contact plate 52, the support plate 51 is a U-shaped structure, the support plate 51 can contact the placement plate 11, and a contact assembly 9 that can contact the roller 53 is fixedly mounted on the fixed frame 43. The contact assembly 9 is slidably arranged on the fixed plate 41, and the contact assembly 9 includes a fixedly connected horizontal plate 91 and an inclined block 92. The horizontal plate 91 is fixedly mounted on the fixed frame 43, and the inclined block 92 contacts the roller 53. The bottom of the placement plate 11 is provided with a mounting groove 20 for installing the clamping assembly 6, and a relatively fixed member that can be clamped on the placement plate 1 is relatively fixedly mounted on the support plate 51. 1 The snap plate 19 in the bottom mounting groove 20, specifically, in this embodiment, the horizontal plate 91 and the inclined block 92 are slidably arranged on the fixed plate 41, and the bottom of the mounting plate 3 defines an opening for the horizontal plate 91 and the inclined block 92 to pass through, and the device body 1 is provided with a sewage outlet, and of course, there is a collection device for collecting sewage. At the same time, a guide bucket 13 is fixedly installed between the fixed frame 43 and the horizontal plate 91, and the opening of the guide bucket 13 is set towards the horizontal plate 91; when the fixed frame 43 is driven by the moving mechanism 42 to synchronously approach the placement plate 11, as the fixed frame 43 moves, the interference assembly 9 (horizontal plate 91 and inclined block 92) fixed thereon gradually approaches the roller 53 at the bottom of the interference plate 52. When the fixed frame 43 moves to a certain position, the inclined block 92 begins to The cam 52 is in contact with the roller 53 and pushes the roller 53 upward by squeezing the inclined surface. The upward movement of the roller 53 drives the resistance plate 52 and the support plate 51 to rise synchronously until the U-shaped structure of the support plate 51 is clamped on the connecting plate 12, and the support plate 51 is in conflict with the back of the placement plate 11 and the baffle 14. At the same time, the snap plate 19 is clamped on the placement plate 11 at the inner edge of the mounting groove 20, firmly supporting the placement plate 11. When the boring machine 44 is boring the crankshaft hole of the engine cylinder, due to the support and clamping of the support plate 51 and the snap plate 19 on the placement plate 11, and the pressing effect of the resistance component 9 on the support plate 51 through the roller 53, the placement plate 11 remains stable during the processing and will not shake or move due to the cutting force of the boring cutter. Even if vibration occurs during the processing, The structural coordination of the support assembly 5 can also effectively disperse and buffer vibration energy to ensure the processing accuracy of the engine cylinder block. When the crankshaft hole boring is completed, the fixing frame 43 returns to its initial position under the drive of the moving mechanism 42. As the fixing frame 43 retreats, the inclined block 92 disengages from the roller 53, and the roller 53, the resistance plate 52 and the support plate 51 that have lost their extrusion effect descend under the action of their own gravity. The support plate 51 is separated from the placement plate 11, and the snap plate 19 is removed from the mounting groove 20. The overall structure is simple to operate, enhances the stability of the placement plate 11, improves processing accuracy, realizes automatic support and reset, and improves processing efficiency. It should be noted that in order to ensure that the support plate 51 can be reset, a reset mechanism such as a tension spring can be set between the bottom of the support plate 51 and the bottom of the mounting plate 3.

[0054] In this embodiment, if Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 11 and Figure 12 As shown, the clamping assembly 6 includes a gear 66, which is rotatably arranged in the mounting groove 20, two drive plates 63, which are relatively slidably arranged on the placement plate 11 along the gear 66, and the two drive plates 63 are fixedly connected to the rack 65 engaged with the gear 66. A cylinder 64 is fixedly installed in the mounting groove 20, and the telescopic end of the cylinder 64 is fixedly connected to one of the drive plates 63. A drive rod 62 passes through and is movably arranged on the placement plate 11. One end of the drive rod 62 is fixedly connected to the drive plate 63, and the other end is fixedly connected to the clamping plate 61. The clamping plate 61 is slidably arranged on the placement plate 11. Specifically, in this embodiment, the connecting pipes and lines of the cylinder 64 can be connected to external equipment by passing through the first rotating shaft 10. Of course, a rotary joint and an electric The slip ring realizes the rotation of the connecting pipes and lines. This is a prior art and will not be described here. At the same time, both drive plates 63 are penetrated by a through hole 15 for the rack 65 to move. Secondly, a guide rod can be fixedly installed on the drive rod 62, and the guide rod is movably arranged inside the placement plate 11. The guide rod can improve the stability of the drive rod 62. The cylinder 64 is in an extended state, and the drive plate 63 connected to the cylinder 64 is in the initial position, driving the rack 65, the gear 66 and the other drive plate 63 to remain stationary. When the engine cylinder body is placed on the placement plate 11, the telescopic end of the external cylinder 64 is retracted, driving the drive plate 63 connected thereto to slide along the placement plate 11, and the rack 65 on the drive plate 63 engages with the gear 66, driving the gear 66 to rotate. Since the racks 65 of the two drive plates 63 are symmetrically distributed and mesh in opposite directions, the rotation of the gear 66 will synchronously pull the other drive plate 63 to slide in the opposite direction, realizing the reverse synchronous movement of the two drive plates 63. The two drive plates 63 are fixedly connected to the corresponding clamping plates 61 through the drive rod 62. When the drive plate 63 moves, the drive rod 62 drives the clamping plate 61 to slide along the surface of the placement plate 11, and finally clamps the engine cylinder from both sides, thereby realizing fast, accurate and automatic clamping of the engine cylinder, solving the problems of low efficiency and poor stability of traditional manual fixing methods.

[0055] Working principle:

[0056] In the initial state, when the spline intermittent drive mechanism 2 is not started, the first rotating shaft 10 is stationary, and one of the placement plates 11 stays at the loading station (usually the front end of the device) and is in a horizontal state (guaranteed by the horizontal component 7). The operator or the manipulator places the engine cylinder body on the placement plate 11 of the loading station, and quickly fixes the cylinder body through the clamping component 6. The first rotating shaft 10 is driven to rotate by the spline intermittent drive mechanism 2, and the first rotating shaft 10 is driven to rotate periodically according to the set angle, so that the placement plate 11 passes through the preset positions such as the loading station, the boring station and the unloading station in turn. In the process of the connecting plate 12 rotating with the first rotating shaft 10, the horizontal component 7 forces the placement plate 11 to remain horizontal to avoid the cylinder body tilting and causing the boring reference offset. When the placement plate 11 rotates to the boring station During the processing station, the intermittent driving mechanism 2 of the groove wheel is paused, the first rotating shaft 10 is stationary, and the moving mechanism 42 is controlled by an external controller to drive the fixed frame 43 to slide along the fixed plate 41 toward the placement plate 11, so that the boring tool of the boring cylinder machine 44 is aligned with the crankshaft hole processing position. At this time, when the moving mechanism 42 drives the boring cylinder machine 44 to move toward the crankshaft hole of the engine cylinder on the placement plate 11, the shielding cover 16 will move synchronously with the movement of the fixed frame 43. The slot 17 on the shielding cover 16 can be snapped into the connecting plate 12, and the through slot 18 will be snapped into the connecting rod 72. As the fixed frame 43 moves, the shielding cover 16 conflicts with the mounting plate 3. At this time, the boring tool of the boring cylinder machine 44 is facing and adjacent to the engine cylinder to be processed position. As the moving mechanism 42 continues to drive the boring cylinder The machine 44 moves to bore the engine cylinder block. During this process, the relative position change between the shielding cover 16 and the boring machine 44 is adjusted by the elastic telescopic rod 85 mechanism 8, and the placement plate 11 is always kept covered. At the same time, when the fixed frame 43 is driven by the moving mechanism 42 to synchronously approach the placement plate 11, as the fixed frame 43 moves, the interference component 9 (horizontal plate 91 and inclined block 92) fixed thereon gradually approaches the roller 53 at the bottom of the interference plate 52. When the fixed frame 43 moves to a certain position, the inclined block 92 begins to contact with the roller 53 and pushes the roller 53 upward by squeezing the inclined surface. The upward movement of the roller 53 drives the interference plate 52 and the support plate 51 to rise synchronously until the U-shaped structure of the support plate 51 is stuck on the connecting plate 12 , and the support plate 51 contacts the back of the placement plate 11 and the baffle 14, and at the same time the snap plate 19 is snapped into the placement plate 11 at the inner edge of the installation groove 20, firmly supporting the placement plate 11, and then the boring machine 44 is started, the spindle drives the boring tool to rotate, and the fixed frame 43 feeds at the set speed to complete the rough boring or fine boring of the crankshaft hole. When a certain placement plate 11 is boring, the other placement plates 11 can be loaded or unloaded synchronously, realizing the "processing-loading-unloading" parallel operation, shortening the non-processing time. After the processing is completed, the groove wheel intermittent drive mechanism 2 is started again, driving the processed cylinder body to rotate with the placement plate 11 to the unloading station, the operator removes the processed cylinder body and transfers it to the next process (such as cleaning, testing), and at the same time loads a new workpiece into the vacant loading station.Entering the next cycle, the overall structure features simple operation steps and multi-station intermittent drive, improving processing efficiency. The horizontal component 7 forces the placement plate 11 to remain horizontal during rotation, ensuring that the machining reference (such as the bottom surface) of the cylinder crankshaft hole is perpendicular to the boring tool axis, avoiding coaxiality and cylindricity deviations caused by workpiece tilt. The use of automated clamping and mechanical drive improves overall processing efficiency and is highly versatile, solving the problems of low efficiency, unstable accuracy, and frequent manual intervention in existing devices.

[0057] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention, which have the same or similar technical solutions as the present invention, should be understood to fall within the scope of protection of the present invention. The technologies, shapes, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. An engine cylinder crankshaft hole boring device, characterized in that: include: The device body (1) has a mounting plate (3) fixedly mounted therein, a first rotating shaft (10) being rotatably connected to the mounting plate (3), a grooved wheel intermittent driving mechanism (2) for driving the first rotating shaft (10) to rotate being provided on the mounting plate (3), a plurality of connecting plates (12) being fixedly mounted on the first rotating shaft (10) along its circumference direction, a placement plate (11) being rotatably connected to each of the plurality of connecting plates (12), a clamping assembly (6) being provided on the placement plate (11), and a horizontal assembly (7) for driving the placement plate (11) to be continuously horizontal being provided on the mounting plate (3); The boring assembly (4) comprises a fixing plate (41) fixedly mounted on the device body (1), a fixing frame (43) slidably mounted on the fixing plate (41), a boring cylinder machine (44) fixedly mounted on the fixing frame (43) and arranged relative to the placement plate (11), and a moving mechanism (42) for driving the fixing frame (43) to slide.

2. The engine cylinder crankshaft hole boring device according to claim 1, characterized in that: A plurality of the placement plates (11) are sequentially arranged in pairs along the circumference direction of the first rotating shaft (10) to form a group, and the horizontal component (7) includes: A second rotating shaft (73) is rotatably mounted on the connecting plate (12), one end of the second rotating shaft (73) is fixedly connected to the placement plate (11), and the other end of the second rotating shaft (73) is fixedly mounted with an adjustment plate (74); A guide plate (76) is slidably mounted on the mounting plate (3), wherein the mounting plate (3) is provided with a guide groove (71) for the guide plate (76) to slide, and a third rotating shaft (75) is rotatably connected between the guide plate (76) and the adjustment plate (74); A plurality of connecting rods (72) are movably connected between the two placement plates (11) in each group.

3. The engine cylinder crankshaft hole boring device according to claim 2, characterized in that: The guide groove (71) is coaxially arranged with the first rotating shaft (10), and the guide plate (76) is an arc-shaped structure coaxially arranged with the first rotating shaft (10).

4. The engine cylinder crankshaft hole boring device according to claim 2, characterized in that: A shielding cover (16) is provided on the fixing frame (43) so as to slide relative to the placement plate (11). The shielding cover (16) is sleeved on the cylinder boring machine (44). The shielding cover (16) is a U-shaped structure. A plurality of sets of elastic telescopic rod (85) mechanisms (8) are provided between the shielding cover (16) and the cylinder boring machine (44). The shielding cover (16) can cover the placement plate (11).

5. The engine cylinder crankshaft hole boring device according to claim 4, characterized in that: The shielding cover (16) is provided with a slot (17) which can be inserted into the connecting plate (12).

6. The engine cylinder crankshaft hole boring device according to claim 4, characterized in that: The shielding cover (16) is provided with a through slot (18) which can be clamped on the connecting rod (72).

7. The engine cylinder crankshaft hole boring device according to claim 1, characterized in that: The invention also includes a support assembly (5) which is arranged on the mounting plate (3). The support assembly (5) includes a support plate (51) slidably arranged on the mounting plate (3), a contact plate (52) fixedly installed on the support plate (51), and a roller (53) rotatably arranged at the bottom of the contact plate (52). The support plate (51) is a U-shaped structure. The support plate (51) can contact the placement plate (11). The fixing frame (43) is fixedly mounted with a contact assembly (9) that can contact the roller (53).

8. The engine cylinder crankshaft hole boring device according to claim 7, characterized in that: The abutment assembly (9) is slidably arranged on the fixed plate (41), and the abutment assembly (9) comprises a fixedly connected horizontal plate (91) and an inclined block (92), wherein the horizontal plate (91) is fixedly mounted on the fixed frame (43), and the inclined block (92) abuts against the roller (53).

9. The engine cylinder crankshaft hole boring device according to claim 7, characterized in that: The bottom of the placement plate (11) is provided with a mounting groove (20) for mounting the clamping assembly (6), and a snap plate (19) is relatively fixedly mounted on the support plate (51) and can be clamped in the mounting groove (20) at the bottom of the placement plate (11).

10. The engine cylinder crankshaft hole boring device according to claim 9, characterized in that: The clamping assembly (6) comprises: a gear (66) rotatably disposed within the mounting groove (20); Two drive plates (63) are relatively slidably arranged on the placement plate (11) along the gear (66), and the two drive plates (63) are fixedly connected to a rack (65) meshing with the gear (66). A cylinder (64) is fixedly installed in the installation groove (20), and the telescopic end of the cylinder (64) is fixedly connected to one of the drive plates (63); A driving rod (62) passes through and is movably arranged on the placement plate (11); one end of the driving rod (62) is fixedly connected to the driving plate (63); the other end is fixedly connected to a clamping plate (61); and the clamping plate (61) is slidably arranged on the placement plate (11).

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