A kind of inner hole polishing machine for automobile cylinder liner processing

Abstract

The utility model relates to polishing machine technical field, and disclose a kind of inner hole polishing machine for automobile cylinder liner processing, including base, the top of base is fixed with support rod, the top of support rod is fixed with top plate, the top of top plate is fixed with cylinder one, the output end of cylinder one is through top plate, this inner hole polishing machine for automobile cylinder liner processing, by setting polishing subassembly, when needing to polish the inner hole of automobile cylinder liner, open cylinder one, fixed plate drives motor one synchronous downshift, fixed block enters inner hole, motor two is opened at this time, by protection subassembly, so that worm gear synchronous rotation, worm wheel drives movable rod and circular plate direct current at this time, the inner wall of through hole and the outer surface of fixed rod are in contact, drive fixed rod, connecting rod, polishing plate synchronous radial movement, so that the outer surface of polishing plate and the inner wall of automobile cylinder liner inner hole are in contact, different aperture automobile cylinder liner inner hole can be adapted, and universality is improved.

Description

Technical Field

[0001] This utility model relates to the field of polishing machine technology, specifically to an internal hole polishing machine for automotive cylinder liner processing. Background Technology

[0002] Cylinder liners are short for engine cylinder liners. They are installed inside the cylinder barrel of the cylinder block and together with the piston and cylinder head, they form the combustion chamber. Cylinder liners are divided into two main categories: dry cylinder liners and wet cylinder liners. Cylinder liners whose back does not contact the cooling water are called dry cylinder liners, while those whose back contacts the cooling water are called wet cylinder liners. During the machining process of cylinder liners, the inner bore needs to be polished.

[0003] Existing internal bore polishing machines with fixed polishing wheels suffer from limited versatility and applicability due to their inherently non-adjustable dimensions. They cannot efficiently and economically meet the internal bore polishing needs of automotive cylinder liners of different specifications, leading to numerous inconveniences and additional costs in actual production. There is an urgent need for a novel cylinder liner internal bore polishing device that overcomes these shortcomings and features an adjustable polishing wheel to accommodate different cylinder liner inner diameters. Utility Model Content

[0004] The purpose of this utility model is to provide an internal hole polishing machine for automotive cylinder liner processing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal hole polishing machine for automotive cylinder liner processing, comprising a base, a support rod fixed to the top of the base, a top plate fixed to the top of the support rod, a cylinder fixed to the top of the top plate, the output end of the cylinder penetrating the top plate, a fixing plate fixed to the bottom of the output end of the cylinder, a motor fixed to the bottom of the output shaft of the fixing plate, and a polishing component and a protective component provided on the surface of the output shaft of the motor.

[0006] The polishing components include:

[0007] The fixing block is used to stabilize its internal mechanism;

[0008] A cavity is used to stabilize its internal structure.

[0009] Transmission components are used to provide driving force.

[0010] Preferably, the fixing block is fixed to the bottom of the output shaft of the motor. The fixing block has a cavity inside, and a circular plate is rotatably connected to the inner wall of the cavity. A through hole is opened on the outer surface of the circular plate. A fixing rod is abutted against the inner wall of the through hole. A connecting rod is fixed to the outer surface of the fixing rod. The end of the connecting rod away from the fixing rod passes through the fixing block and is slidably connected to the fixing block. A threaded groove is opened on the end of the connecting rod away from the fixing rod. A screw is threadedly connected to the inner wall of the threaded groove. A grinding plate is fixed to the end of the screw away from the connecting rod. When the circular plate rotates clockwise, the contact between the through hole and the fixing rod causes the fixing rod, the connecting rod, and the grinding plate to move radially synchronously, so that the outer surface of the grinding plate contacts the inner wall of the cylinder liner, realizing the function of adapting to different hole diameters. When the circular plate rotates counterclockwise, the connecting rod drives the grinding plate to reset.

[0011] Preferably, the transmission component includes a worm gear, which rotates on the inner wall of the cavity away from the circular plate. A movable rod is fixed to the outer surface of the circular plate, and the end of the movable rod away from the circular plate passes through the worm gear and is fixedly connected to the worm gear. A fixed frame is fixed to the inner wall of the cavity away from the circular plate, and a worm is rotatably connected to the inner side of the fixed frame. The worm meshes with the worm gear. A second motor is fixed to the outer surface of the fixed frame. By starting the second motor and through the protective component, the worm can drive the worm gear, the movable rod, and the circular plate to rotate, which is convenient for adapting to different automotive cylinder liners.

[0012] Preferably, the protective component includes a groove formed on the surface of the worm gear near the second motor. The output shaft of the second motor extends into the groove through the fixing bracket. The output shaft of the second motor passes through and is fixed to a movable plate, which is slidably connected to the second movable plate. A contact groove is formed on the side of the second movable plate away from the first movable plate. A protrusion is fixed to the inner wall of the groove. A spring is fixed to the side of the second movable plate away from the contact groove. The end of the spring away from the second movable plate is fixed to the surface of the first movable plate. Both the protrusion and the contact groove are hemispherical. When the circular plate rotates clockwise, the contact between the through hole and the fixing rod causes the fixing rod, connecting rod, and grinding plate to move radially synchronously, thereby allowing the outer surface of the grinding plate to contact the inner wall of the cylinder liner, achieving the function of adapting to different hole diameters. When the circular plate rotates counterclockwise, the connecting rod drives the grinding plate to reset.

[0013] Preferably, a stabilizing rod is fixed to the top of the fixing plate, the top of the stabilizing rod penetrates through the top plate, and the stabilizing rod is slidably connected to the top plate to facilitate the stable operation of the motor.

[0014] Preferably, a stabilizing plate is fixed to the top of the base, a second cylinder is fixed to the outer surface of the stabilizing plate, a clamping plate is slidably connected to the top of the base, the output end of the second cylinder passes through the stabilizing plate, and the output end of the second cylinder is fixed to the outer surface of the clamping plate, which facilitates clamping of the automotive cylinder liner and facilitates subsequent polishing work.

[0015] Preferably, the through hole is arc-shaped, so that when the circular plate rotates, it can drive the fixed rod and the connecting rod to move radially synchronously.

[0016] Compared with the prior art, this utility model provides an internal hole polishing machine for automotive cylinder liner processing, which has the following beneficial effects:

[0017] 1. This automotive cylinder liner internal hole polishing machine, through its set grinding components, when polishing the inner hole of the automotive cylinder liner is required, cylinder one is activated, and the fixed plate drives motor one to move down synchronously, and the fixed block enters the inner hole. At this time, motor two is activated, and through the protective components, the worm gear rotates synchronously. At this time, the worm wheel drives the movable rod and the circular plate to rotate forward. The inner wall of the through hole abuts against the outer surface of the fixed rod, driving the fixed rod, connecting rod, and grinding plate to move radially synchronously, so that the outer surface of the grinding plate abuts against the inner wall of the automotive cylinder liner inner hole. This allows it to adapt to automotive cylinder liner inner holes of different diameters, improving versatility.

[0018] 2. This internal polishing machine for automotive cylinder liners, through its protective components, ensures that when motor two is started, the worm gear rotates synchronously when the protrusion contacts the inner wall of the contact groove. If the circular plate is obstructed and cannot rotate, the protrusion will slip within the contact groove, protecting motor two from damage and ensuring its normal operation. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a front view structural diagram of the fixing block and grinding plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the fixing block of this utility model;

[0022] Figure 4 This is a side view of a portion of the grinding components of this utility model.

[0023] Figure 5 This is an exploded view of part of the grinding components of this utility model;

[0024] Figure 6 This is a cross-sectional view of the internal structure of the worm gear of this utility model;

[0025] Figure 7 This is a cross-sectional structural diagram of the worm gear, groove, and protrusion of this utility model.

[0026] In the diagram: 1. Base; 2. Support rod; 3. Top plate; 4. Cylinder 1; 5. Fixing plate; 6. Stabilizing rod; 7. Motor 1; 10. Cylinder 2; 11. Clamping plate; 12. Stabilizing plate; 8. Grinding assembly; 80. Fixing block; 81. Cavity; 82. Round plate; 83. Through hole; 84. Fixing rod; 85. Connecting rod; 86. Grinding plate; 88. Threaded groove; 89. Screw; 87. Transmission component; 870. Worm gear; 871. Fixing frame; 872. Worm; 873. Motor 2; 874. Movable rod; 9. Protective assembly; 90. Groove; 91. Movable plate 1; 92. Movable plate 2; 93. Protrusion; 94. Abutment groove; 95. Spring. Detailed Implementation

[0027] like Figures 1-7 As shown, this utility model provides a technical solution: an internal hole polishing machine for automotive cylinder liner processing, including a base 1, a support rod 2 fixed to the top of the base 1, a top plate 3 fixed to the top of the support rod 2, a cylinder 4 fixed to the top of the top plate 3, the output end of the cylinder 4 penetrating the top plate 3, a fixing plate 5 fixed to the bottom of the output end of the cylinder 4, a motor 7 fixed to the bottom of the output shaft of the fixing plate 5, and a grinding component 8 and a protective component 9 provided on the surface of the output shaft of the motor 7; the grinding component 8 includes: a fixing block 80, a cavity 81, a round plate 82, a through hole 83, a fixing rod 84, a connecting rod 85, a grinding plate 86, a threaded groove 88, a screw 89, a transmission component 87, a worm gear 870, a fixing frame 871, a worm 872, a second motor 873, and a movable rod 874.

[0028] A fixing block 80 is fixed to the bottom of the output shaft of motor 7. A cavity 81 is formed inside the fixing block 80. A circular plate 82 is rotatably connected to the inner wall of the cavity 81. A through hole 83 is formed on the outer surface of the circular plate 82. A fixing rod 84 abuts against the inner wall of the through hole 83. A connecting rod 85 is fixed to the outer surface of the fixing rod 84. The end of the connecting rod 85 away from the fixing rod 84 passes through the fixing block 80 and is slidably connected to the fixing block 80. A threaded groove 88 is formed at the end of the connecting rod 85 away from the fixing rod 84. A screw 89 is threadedly connected to the inner wall of the threaded groove 88. A grinding plate 86 is fixed to the end of the screw 89 away from the connecting rod 85. The transmission component 87 includes a worm gear 870, which rotates in the cavity 81 away from the fixing rod 84. A movable rod 874 is fixed to one inner wall of the circular plate 82 and to the outer surface of the circular plate 82. The end of the movable rod 874 away from the circular plate 82 passes through the worm gear 870 and is fixedly connected to the worm gear 870. A fixed frame 871 is fixed to the inner wall of the cavity 81 away from the circular plate 82. A worm 872 is rotatably connected to the inner side of the fixed frame 871. The worm 872 meshes with the worm gear 870. A second motor 873 is fixed to the outer surface of the fixed frame 871. The through hole 83 is set to be arc-shaped. When the second motor 873 is started, the first movable plate 91 and the second movable plate 92 rotate synchronously. The worm 872 is driven to rotate through the contact between the protrusion 93 and the contact groove 94. The worm gear 870 then drives the movable rod 874 and the circular plate 82 to rotate forward. The contact between the through hole 83 and the fixing rod 84 causes the fixing rod 84, the connecting rod 85 and the grinding plate 86 to move radially in sync, so that the outer surface of the grinding plate 86 contacts the inner wall of the automobile cylinder liner, thus realizing the function of adapting to different hole diameters.

[0029] The protective component 9 includes a groove 90, which is formed on the surface of the worm gear 872 near the end of the motor 873. The output shaft of the motor 873 extends into the groove 90 through the fixing bracket 871. The output shaft of the motor 873 passes through and is fixed to a movable plate 91. The output shaft of the motor 873 passes through and is slidably connected to a movable plate 92. A contact groove 94 is formed on the side of the movable plate 92 away from the movable plate 91. A protrusion 93 is fixed to the inner wall of the groove 90. A spring 95 is fixed to the side of the movable plate 92 away from the contact groove 94. The end of the spring 95 away from the movable plate 92 is fixed to the surface of the movable plate 91. Both the protrusion 93 and the contact groove 94 are hemispherical. When the motor 873 is started, the movable plate 91 and the movable plate 92 rotate synchronously. When the protrusion 93 contacts the inner wall of the contact groove 94, it can drive the worm gear 872 to rotate synchronously. If the circular plate 82 is obstructed and cannot rotate, the protrusion 93 will slip in the contact groove 94. At this time, the spring 95 will cause the movable plate 92 to reciprocate, thereby protecting the motor 873 from damage and ensuring its normal operation.

[0030] A stabilizing rod 6 is fixed to the top of the fixed plate 5. The top of the stabilizing rod 6 passes through the top plate 3 and is slidably connected to the top plate 3. A stabilizing plate 12 is fixed to the top of the base 1. A cylinder 10 is fixed to the outer surface of the stabilizing plate 12. A clamping plate 11 is slidably connected to the top of the base 1. The output end of the cylinder 10 passes through the stabilizing plate 12 and is fixed to the outer surface of the clamping plate 11. When the cylinder 10 is turned on, the clamping plates 11 can move closer together to clamp the car cylinder liner. At this time, when the cylinder 4 is turned on, the fixed plate 5 drives the motor 7 to move down synchronously, so that the fixed block 80 enters the inner hole, which facilitates the polishing work.

[0031] When polishing the inner bore of the automotive cylinder liner is required, place it on top of the base 1. Then, activate cylinder 2 (10) to bring the clamping plates 11 closer together and clamp the cylinder liner. Activate cylinder 1 (4) to move the fixing plate 5 and motor 1 (7) downwards, allowing the fixing block 80 to enter the inner bore. The stabilizing rod 6 stabilizes the fixing plate 5 and motor 1 (7). Activate motor 2 (873) to rotate the movable plates 1 (91) and 2 (92) synchronously. The protrusion 93 abuts against the inner wall of the contact groove 94, synchronously driving the worm gear 872 to rotate. The worm wheel 870 then drives the movable rod 874 and the circular plate 82 to rotate forward. The inner wall of the through hole 83 abuts against the outer surface of the fixing rod 84, causing the fixing rod 84, connecting rod 85, and grinding plate 86 to move radially synchronously. The outer surface of the grinding plate 86 then contacts the inner surface of the automotive cylinder liner. The inner wall of the sleeve abuts against the cylinder liner, which can be adapted to the inner bore of automobile cylinder liners with different diameters. At this time, the second motor 873 continues to work. At this time, the protrusion 93 slips against the contact groove 94. Through the spring 95, the second movable plate 92 can reciprocate without affecting the normal operation of the second motor 873, thus avoiding damage to the second motor 873. At this time, the second motor 873 is turned off and the first motor 7 is turned on, which can drive the fixed block 80 and the grinding plate 86 to rotate, thereby polishing the inner bore of the automobile cylinder liner. When polishing is completed, the clamping plate 11 is released from the automobile cylinder liner by the second cylinder 10. At the same time, the fixed plate 5, the first motor 7, the fixed block 80, and the grinding plate 86 are disengaged from the inner bore of the automobile cylinder liner by the first cylinder 4, and can be removed normally. When it is necessary to replace the grinding plate 86, rotate the grinding plate 86 to disengage the screw 89 from the thread groove 88 for replacement.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An internal polishing machine for machining automotive cylinder liners, comprising a base (1), characterized in that: A support rod (2) is fixed to the top of the base (1), a top plate (3) is fixed to the top of the support rod (2), a cylinder (4) is fixed to the top of the top plate (3), the output end of the cylinder (4) passes through the top plate (3), a fixing plate (5) is fixed to the bottom of the output end of the cylinder (4), a motor (7) is fixed to the bottom of the output shaft of the fixing plate (5), and a grinding component (8) and a protective component (9) are provided on the surface of the output shaft of the motor (7). The polishing component (8) includes: Fixed block (80), fixed block (80) is used to stabilize its internal mechanism; Cavity (81), cavity (81) is used to stabilize its internal mechanism; Transmission component (87) is used to provide driving force.

2. The internal polishing machine for automotive cylinder liner machining according to claim 1, characterized in that: The fixing block (80) is fixed to the bottom of the output shaft of motor 1 (7). The fixing block (80) has a cavity (81) inside. A circular plate (82) is rotatably connected to the inner wall of the cavity (81). A through hole (83) is opened on the outer surface of the circular plate (82). A fixing rod (84) is abutted against the inner wall of the through hole (83). A connecting rod (85) is fixed on the outer surface of the fixing rod (84). The end of the connecting rod (85) away from the fixing rod (84) passes through the fixing block (80) and is slidably connected to the fixing block (80). A threaded groove (88) is opened on the end of the connecting rod (85) away from the fixing rod (84). A screw (89) is threadedly connected to the inner wall of the threaded groove (88). A grinding plate (86) is fixed on the end of the screw (89) away from the connecting rod (85).

3. The internal polishing machine for automotive cylinder liner machining according to claim 2, characterized in that: The transmission component (87) includes a worm gear (870), which rotates on the inner wall of the cavity (81) away from the circular plate (82). A movable rod (874) is fixed on the outer surface of the circular plate (82). The end of the movable rod (874) away from the circular plate (82) passes through the worm gear (870) and is fixedly connected to the worm gear (870). A fixed frame (871) is fixed on the inner wall of the cavity (81) away from the circular plate (82). A worm (872) is rotatably connected to the inner side of the fixed frame (871). The worm (872) meshes with the worm gear (870). A second motor (873) is fixed on the outer surface of the fixed frame (871).

4. The internal polishing machine for automotive cylinder liner machining according to claim 3, characterized in that: The protective component (9) includes a groove (90), which is formed on the surface of the worm gear (872) near the motor (873). The output shaft of the motor (873) extends into the groove (90) through the fixing frame (871). The output shaft of the motor (873) is connected to a movable plate (91) through and fixed to it. The output shaft of the motor (873) is connected to a movable plate (92) through and slidably connected to it. A contact groove (94) is formed on the side of the movable plate (92) away from the movable plate (91). A protrusion (93) is fixed to the inner wall of the groove (90). A spring (95) is fixed to the side of the movable plate (92) away from the contact groove (94). The end of the spring (95) away from the movable plate (92) is fixed to the surface of the movable plate (91). The protrusion (93) and the contact groove (94) are both hemispherical.

5. The internal polishing machine for automotive cylinder liner machining according to claim 1, characterized in that: A stabilizing rod (6) is fixed to the top of the fixing plate (5). The top of the stabilizing rod (6) passes through the top plate (3), and the stabilizing rod (6) is slidably connected to the top plate (3).

6. The internal polishing machine for automotive cylinder liner machining according to claim 1, characterized in that: A stabilizing plate (12) is fixed to the top of the base (1), and a cylinder (10) is fixed to the outer surface of the stabilizing plate (12). A clamping plate (11) is slidably connected to the top of the base (1). The output end of the cylinder (10) passes through the stabilizing plate (12), and the output end of the cylinder (10) is fixed to the outer surface of the clamping plate (11).

7. The internal polishing machine for automotive cylinder liner machining according to claim 2, characterized in that: The through hole (83) is set to be arc-shaped.

Images