Inclined hole machining clamp for engine cylinder block
By designing the coordination of clamping components and driving components, the problem of unstable clamping in the inclined hole processing of the engine cylinder block is solved, and the cylinder surface is tightly fitted, avoiding processing skews, and improving processing accuracy and stability.
Patent Information
- Application Number
- CN202421814938.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing engine cylinder oblique hole machining fixtures cannot closely fit the uneven cylinder surface, resulting in unstable clamping, which can easily lead to deflection during the cylinder oblique hole machining.
A clamping assembly including a cross plate, a curved plate, a triangle block and a buffer plate is designed. The combination of the triangle block and the curved plate is driven by the hydraulic rod to achieve multi-channel buffering and fit the cylinder surface, and the clamping position and rotating the cylinder block are adjusted by the driving assembly to ensure a tight fit.
It effectively avoids the deflection during the inclined hole processing of cylinder blocks, improves processing accuracy and stability, and adapts to the cylinder clamping needs of uneven surfaces.
Smart Images
Figure CN223146600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine cylinder body processing, in particular to a fixture for processing inclined holes of an engine cylinder body. Background Art
[0002] The inclined holes on the engine cylinder block are mainly used to optimize the cooling and lubrication system. They are part of the cooling water channel, helping to circulate the coolant to reduce the engine temperature. They are also part of the oil channel to ensure that the oil can be evenly distributed to each lubrication point. In addition, the inclined hole design may also help to reduce the weight of the cylinder block, improve the structural strength, and be used for leak detection during the manufacturing process. The engine cylinder block inclined hole needs to be clamped during processing. However, the existing engine cylinder block inclined hole processing fixture has certain defects. Since the surface of the engine cylinder block is uneven, if the clamping mechanism cannot fit tightly to the cylinder block, it will cause unstable clamping. The cylinder block inclined hole is prone to deflection during processing. For this reason, we propose an engine cylinder block inclined hole processing fixture. Utility Model Content
[0003] The utility model aims to provide a fixture for machining an inclined hole of an engine cylinder block, so as to solve the problems raised in the above-mentioned background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An engine cylinder oblique hole processing fixture comprises a base, a driving assembly and a clamping assembly, wherein the driving assembly is arranged on the base, and the clamping assembly is arranged on the driving assembly;
[0006] The clamping assembly includes a cross plate, an arc plate, a triangular block and a buffer plate; the cross plate is fixedly arranged on the driving assembly, one side of the cross plate is fixedly connected to a first telescopic rod, and one end of the first telescopic rod is fixedly connected to a transfer block; the arc plate is rotatably hinged at the outer end of the transfer block, the outer end of the arc plate is rotatably connected to a second telescopic rod, and the bottom end of the second telescopic rod is rotatably connected to the cross plate; the triangular block is arranged on one side of the arc plate; the buffer plate is arranged between the triangular block and the arc plate.
[0007] Preferably, the number of the arc-shaped plate, the second telescopic rod, the triangular block and the buffer plate is set to four groups, and the four groups are all arranged around the central axis of the adapter block, and the number of the buffer plates in each group is set to four, which are respectively arranged on both sides of the triangular block.
[0008] Preferably, long grooves are formed in the buffer plates. Sliders are slidably connected in the long grooves. One side of each slider is fixedly connected to a moving rod. One end of the moving rod is rotatably connected to a triangular block. One end of the buffer plate is fixedly connected to a connecting rod. One end of the connecting rod is fixedly connected to an arc-shaped plate. The other side of the slider is fixedly connected to a spring. One end of the spring is fixedly connected to the inner side of the long groove.
[0009] Preferably, an operating table is fixedly arranged on the base.
[0010] Preferably, empty grooves are formed in the plurality of triangular blocks. The plurality of triangular blocks are all made of hard rubber material.
[0011] Preferably, the driving assembly includes a frame, a cylinder, a first motor, a second motor and a turntable. The frame is fixedly connected to the base. The cylinder is fixedly connected to the frame. A groove is formed in the cylinder. The first motor is fixedly connected to the top of the cylinder. The driving end of the first motor extends into the groove and is fixedly connected to a screw rod. A driving box is threadedly connected to the screw rod. The second motor is fixedly connected to the outside of the driving box. A chain is arranged at the driving end of the second motor. The driving end of the chain extends into the driving box and is provided with a rotating shaft. The turntable is fixedly connected to the outer end of the rotating shaft. A hydraulic rod is fixedly connected to the outside of the turntable. The driving end of the hydraulic rod is fixedly connected to a cross plate.
[0012] Preferably, the number of the frames and the driving assemblies is set to two groups, and the two groups are oppositely arranged on the base. The number of the hydraulic rods and the clamping assemblies on each turntable is set to be multiple.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. By arranging the clamping assembly, start two groups of opposite hydraulic rods to drive two groups of multiple clamping assemblies to move relatively to clamp the cylinder block. During the process, two groups of multiple triangular blocks first contact the surface of the cylinder block. The pressure pushes the triangular blocks to move, and then drives the arc-shaped plate to rotate correspondingly. The corresponding rotation of the arc-shaped plate drives the first telescopic rod and the second telescopic rod to expand and contract correspondingly for the first-stage buffering. When the surface of the cylinder block is uneven, one end of the triangular block will rotate correspondingly, and then drive the moving rod at one end to move in the buffer plate by the sliding of the slider. The movement of the moving rod drives the spring to contract, providing the second-stage buffering. At the same time, through the cooperation with multiple groups of triangular blocks, it fits correspondingly according to the shape of the surface of the cylinder block, so that it can closely fit the surface of the cylinder block and avoid the deviation of the inclined hole machining of the cylinder block due to unstable clamping.
[0015] 2. By setting the driving component, two first motors are started synchronously. The two first motors drive the screw rod to rotate, and then drive the two driving boxes to move up and down, that is, drive the two groups of clamping components to move up and down, so as to adjust the clamping position. After clamping, two second motors are started synchronously. The two second motors drive the chain to rotate synchronously, and then drive the rotating shaft to rotate, that is, drive the clamping components on multiple turntables to rotate as a whole. The two opposite groups of clamping components rotate synchronously and in the same direction, which can drive the cylinder block to rotate, so as to process different positions of the cylinder block. Description of the Drawings
[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;
[0017] Figure 2 is a schematic diagram of the structure of the driving component in the present invention;
[0018] Figure 3 is a schematic diagram of the structure of the clamping component in the present invention;
[0019] Figure 4 is in the present invention Figure 3 enlarged view of part A.
[0020] In the figure: 1, base; 2, clamping component; 3, driving component; 101, operating table; 210, cross plate; 220, first telescopic rod; 230, adapter block; 240, arc plate; 250, second telescopic rod; 260, triangular block; 261, empty groove; 270, buffer plate; 271, long groove; 272, slider; 273, moving rod; 274, connecting rod; 275, spring; 301, frame; 302, column; 303, groove; 304, first motor; 305, screw rod; 306, driving box; 307, second motor; 308, chain; 309, rotating shaft; 310, turntable; 311, hydraulic rod. Detailed Embodiments
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] Embodiment 1
[0023] As Figures 1-4 shown, in this embodiment, an inclined hole processing fixture for an engine cylinder block includes a base 1, a driving component 3 and a clamping component 2. The driving component 3 is arranged on the base 1, and the clamping component 2 is arranged on the driving component 3;
[0024] The clamping assembly 2 includes a cross plate 210, an arc plate 240, a triangular block 260, and a buffer plate 270; the cross plate 210 is fixedly arranged on the driving assembly 3, one side of the cross plate 210 is fixedly connected with a first telescopic rod 220, and one end of the first telescopic rod 220 is fixedly connected with a transfer block 230; the arc plate 240 is rotatably hinged to the outer end of the transfer block 230, the outer end of the arc plate 240 is rotatably connected with a second telescopic rod 250, and the bottom end of the second telescopic rod 250 is rotatably connected to the cross plate 210; the triangular block 260 is arranged on one side of the arc plate 240; the buffer plate 270 is arranged between the triangular block 260 and the arc plate 240; long grooves 271 are respectively formed in the buffer plate 270, sliders 272 are slidably connected in the long grooves 271, one side of each slider 272 is fixedly connected with a moving rod 273, one end of the moving rod 273 is rotatably connected to the triangular block 260, one end of the buffer plate 270 is fixedly connected with a connecting rod 274, one end of the connecting rod 274 is fixedly connected to the arc plate 240, the other side of each slider 272 is fixedly connected with a spring 275, and one end of the spring 275 is fixedly connected to the inner side of the long groove 271; an operating table 101 is fixedly arranged on the base 1.
[0025] In this embodiment, it should be noted that the buffer plates 270 at both ends of the triangular block 260 are respectively inclined outwards. In this way, when the surface of the cylinder block is flat, the triangular block 260 is squeezed. Since the buffer plates 270 at both ends will interfere, it will not rotate. Only when the surface of the cylinder block is uneven, the triangular block 260 will rotate. In addition, damping mechanisms are respectively arranged in the first telescopic rod 220 and the second telescopic rod 250. This is prior art and will not be elaborated too much.
[0026] Furthermore, empty grooves 261 are respectively formed in the plurality of triangular blocks 260, and the plurality of triangular blocks 260 are all made of hard rubber material. The triangular blocks 260 are hollow and made of hard rubber material, which can avoid damaging the surface of the cylinder block.
[0027] During specific implementation, the driving component 3 is started to drive two groups of multiple clamping components 2 to specific positions. Then, two groups of opposite hydraulic rods 311 are started to drive the two groups of multiple clamping components 2 to move relatively and clamp the cylinder block. During this process, the two groups of multiple triangular blocks 260 first come into contact with the surface of the cylinder block. The pressure pushes the triangular blocks 260 to move, which in turn drives the corresponding rotation of the arc-shaped plate 240. The corresponding rotation of the arc-shaped plate 240 drives the corresponding expansion and contraction of the first telescopic rod 220 and the second telescopic rod 250 to perform the first-stage buffering. When the surface of the cylinder block is uneven, one end of the triangular block 260 will rotate correspondingly, which in turn drives the moving rod 273 at one end to move in the buffer plate 270 through the sliding of the slider 272. The movement of the moving rod 273 drives the spring 275 to contract, providing the second-stage buffering. At the same time, through the cooperation with multiple groups of triangular blocks 260, it fits the shape of the surface of the cylinder block accordingly, so that it can closely fit the surface of the cylinder block and avoid skew during the machining of the inclined holes of the cylinder block due to unstable clamping.
[0028] Embodiment 2
[0029] As Figure 2 shown, in this embodiment, the driving component 3 includes a frame 301, a column 302, a first motor 304, a second motor 307, and a turntable 310; the frame 301 is fixedly connected to the base 1; the column 302 is fixedly connected to the frame 301, and a groove 303 is formed in the column 302; the first motor 304 is fixedly connected to the top of the column 302, and the driving end of the first motor 304 extends into the groove 303 and is fixedly connected to a screw rod 305. The screw rod 305 is threadedly connected to a driving box 306; the second motor 307 is fixedly connected to the outside of the driving box 306, and a chain 308 is provided at the driving end of the second motor 307. The driving end of the chain 308 extends into the driving box 306 and is provided with a rotating shaft 309; the turntable 310 is fixedly connected to the outer end of the rotating shaft 309, and a hydraulic rod 311 is fixedly connected to the outside of the turntable 310. The driving end of the hydraulic rod 311 is fixedly connected to a cross plate 210.
[0030] During specific implementation, two first motors 304 are started synchronously. The two first motors 304 drive the screw rods 305 to rotate, which in turn drives the two driving boxes 306 to move up and down, that is, drives the two groups of clamping components 2 to move up and down, so as to facilitate the adjustment of the clamping position. After clamping, two second motors 307 are started synchronously. The two second motors 307 synchronously drive the chains 308 to rotate, which in turn drives the rotating shafts 309 to rotate, that is, drives the multiple clamping components 2 on the multiple turntables 310 to rotate as a whole. The two opposite groups of clamping components 2 rotate synchronously in the same direction, which can drive the cylinder block to rotate, so as to facilitate the machining of different positions of the cylinder block.
[0031] Working principle: First, start the driving component 3 to drive two groups of multiple clamping components 2 to specific positions. Then, start two groups of opposite hydraulic rods 311 to drive two groups of multiple clamping components 2 to move relatively and clamp the cylinder block. During this process, two groups of multiple triangular blocks 260 first come into contact with the surface of the cylinder block. The pressure pushes the triangular blocks 260 to move, which in turn drives the corresponding rotation of the arc-shaped plate 240. The corresponding rotation of the arc-shaped plate 240 drives the corresponding expansion and contraction of the first telescopic rod 220 and the second telescopic rod 250 for the first-stage buffering. When the surface of the cylinder block is uneven, one end of the triangular block 260 will rotate accordingly, driving the moving rod 273 at one end to move through the sliding of the slider 272 in the buffer plate 270. The movement of the moving rod 273 drives the spring 275 to contract, providing the second-stage buffering. At the same time, through the cooperation with multiple groups of triangular blocks 260, it fits the surface shape of the cylinder block accordingly, so as to closely fit the surface of the cylinder block and avoid the deviation during the machining of the inclined hole of the cylinder block due to unstable clamping.
[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0033] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An engine block inclined hole machining fixture, comprising a base (1), a driving assembly (3) and a clamping assembly (2), characterized in that, The driving component (3) is arranged on the base (1), and the clamping component (2) is arranged on the driving component (3); The clamping component (2) includes a cross plate (210), an arc plate (240), a triangular block (260) and a buffer plate (270); the cross plate (210) is fixedly arranged on the driving component (3), one side of the cross plate (210) is fixedly connected with a first telescopic rod (220), and one end of the first telescopic rod (220) is fixedly connected with a transfer block (230); the arc plate (240) is rotatably hinged to the outer end of the transfer block (230), the outer end of the arc plate (240) is rotatably connected with a second telescopic rod (250), and the bottom end of the second telescopic rod (250) is rotatably connected to the cross plate (210); the triangular block (260) is arranged on one side of the arc plate (240); the buffer plate (270) is arranged between the triangular block (260) and the arc plate (240).
2. The machining fixture for the inclined hole of an engine cylinder block according to claim 1, characterized in that, The number of the arc plate (240), the second telescopic rod (250), the triangular block (260) and the buffer plate (270) is set to four groups, and the four groups are all arranged around the central axis of the transfer block (230). The number of each group of buffer plates (270) is set to four, and they are respectively arranged on both sides of the triangular block (260).
3. The machining fixture for the inclined holes of an engine cylinder block according to claim 1, wherein, Long grooves (271) are respectively formed in the buffer plates (270), sliders (272) are slidably connected in the long grooves (271), one side of each slider (272) is fixedly connected with a moving rod (273), one end of the moving rod (273) is rotatably connected to the triangular block (260), one end of the buffer plate (270) is fixedly connected with a connecting rod (274), one end of the connecting rod (274) is fixedly connected to the arc plate (240), the other side of the slider (272) is fixedly connected with a spring (275), and one end of the spring (275) is fixedly connected to the inner side of the long groove (271).
4. A fixture for machining an inclined hole of an engine cylinder block according to claim 1, characterized in that, An operating table (101) is fixedly arranged on the base (1).
5. A fixture for machining inclined holes of an engine cylinder block according to claim 1, characterized in that, Empty grooves (261) are respectively formed in the plurality of triangular blocks (260), and the plurality of triangular blocks (260) are all made of hard rubber material.
6. The machining fixture for the inclined hole of an engine cylinder block according to claim 1, wherein, The driving assembly (3) includes a frame (301), a column (302), a first motor (304), a second motor (307) and a turntable (310); the frame (301) is fixedly connected to the base (1); the column (302) is fixedly connected to the frame (301), and a groove (303) is formed in the column (302); the first motor (304) is fixedly connected to the top end of the column (302), the driving end of the first motor (304) extends into the groove (303) and is fixedly connected to a screw rod (305), and a driving box (306) is threadedly connected to the outside of the screw rod (305); the second motor (307) is fixedly connected to the outside of the driving box (306), a chain (308) is arranged at the driving end of the second motor (307), the driving end of the chain (308) extends into the driving box (306) and is provided with a rotating shaft (309); the turntable (310) is fixedly connected to the outer end of the rotating shaft (309), a hydraulic rod (311) is fixedly connected to the outside of the turntable (310), and the driving end of the hydraulic rod (311) is fixedly connected to a cross plate (210).
7. A fixture for machining inclined holes of an engine cylinder block according to claim 6, characterized in that, The number of the frames (301) and the driving assemblies (3) is set to two groups, and the two groups are arranged oppositely on the base (1), and the number of the hydraulic rods (311) and the clamping assemblies (2) on each turntable (310) is set to be multiple.