Sliding locking clamp for cylinder cover drilling

Abstract

The utility model aims to provide the sliding locking clamp which is strong in compatibility, can clamp and limit cylinder covers with different sizes and models, and is used for drilling the cylinder covers. The clamping device comprises a bottom plate, at least three mounting grooves are formed in the bottom plate, the clamping device further comprises lifting assemblies correspondingly arranged in the corresponding mounting grooves, limiting assemblies connected to the corresponding lifting assemblies in a sliding mode and clamping jaw assemblies connected with the corresponding mounting grooves in a sliding mode and used for clamping the cylinder cover, and each clamping jaw assembly is correspondingly matched with the corresponding limiting assembly in a limiting mode. The clamping jaw assembly comprises a mounting plate in sliding fit with the mounting groove, a clamping jaw piece rotationally connected to the mounting plate and a cushion block arranged at the first end of the clamping jaw piece, the upper portion of the clamping jaw piece is in limiting fit with the limiting assembly, a push plate in positioning fit with the cylinder cover is formed at one end of the mounting plate, and a first magnetic piece is arranged at the other end of the mounting plate. The second end of the clamping jaw piece is provided with a second magnetic piece attracted with the first magnetic piece. The cylinder cover sliding locking clamp is applied to the technical field of cylinder cover sliding locking clamps.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder head sliding locking fixtures, in particular to a sliding locking fixture for cylinder head drilling. Background Art

[0002] In the machining process of cylinder heads, the combination of drilling and milling is a very important process, and its machining accuracy will directly affect the product quality of engine cylinder heads, especially the influence of the quality of tooling fixtures on machining accuracy. In the general machining process of the drilling and milling joint surface, a general combined fixture on the machine tool is often used to realize the clamping of the tooling, which requires the operator to have very skilled techniques. Moreover, due to the complexity of the cylinder head structure, it takes a lot of time for the operator to select and install the general combined fixture. When most of the current general fixtures are used for drilling the cylinder head, it is not convenient to carry out stable limiting and fixing work for cylinder heads of different specifications and sizes, and thus the stability of the subsequent drilling work cannot be guaranteed. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a sliding locking fixture with strong compatibility, which can clamp and limit cylinder heads of different sizes and models for cylinder head drilling.

[0004] The technical scheme adopted by the utility model is as follows: the utility model includes a bottom plate, at least three installation grooves are formed on the bottom plate, and further includes a lifting component correspondingly arranged in the corresponding installation groove, a limiting component slidably connected to the corresponding lifting component, and a jaw component slidably connected to the corresponding installation groove for clamping the cylinder head. Each jaw component is correspondingly and limitingly matched with the corresponding limiting component. The jaw component includes a mounting plate slidably matched with the installation groove, a jaw piece rotatably connected to the mounting plate for clamping the cylinder head, and a cushion block arranged at the first end of the jaw piece for fitting the cylinder head. The upper part of the jaw piece is limitingly matched with the limiting component. One end of the mounting plate is formed with a push plate for positioning and matching with the cylinder head, a first magnetic part is arranged at the other end of the mounting plate, and a second magnetic part attracted to the first magnetic part is arranged at the second end of the jaw piece.

[0005] Furthermore, a rotating block rotatably connected to the jaw piece is arranged in the middle of the mounting plate, and a fixing cavity for fixedly connecting the first magnetic part is formed on the mounting plate.

[0006] Further, the lifting assembly includes two relatively arranged buckle seats. A positioning plate fixedly connected to the bottom plate is formed at the bottom of each buckle seat. A sliding groove slidably engaged with the limiting assembly is formed in the buckle seat. A card slot is formed on one side of the sliding groove. The card slot is provided with a plurality of bayonets for the limiting assembly to be stuck and limited. A buffer member in contact with the limiting assembly is provided at the bottom of the sliding groove.

[0007] Further, the limiting assembly includes two sliding blocks correspondingly and slidably engaged with the respective sliding grooves, an arc-shaped pressing plate disposed between the two sliding blocks and in limiting cooperation with the clamping jaw member, and a rotating latch block correspondingly disposed in the middle of the respective sliding block and stuck and limited by the bayonet. An extending block rotatably connected to the rotating latch block is formed in the middle of the sliding block. A connecting hole is formed in the lower part of the sliding block. A tension spring connected to the middle of the rotating latch block is provided in the connecting hole.

[0008] Further, the arc-shaped pressing plate is sequentially formed with an access section, an inclined section and a pressing section along the length direction. The access section and the mounting plate cooperate to form a rotating space for the clamping jaw member to open. An arc surface slidably engaged with the upper part of the clamping jaw member is formed on the inclined section. The height of the access section is greater than the height of the pressing section. The downward pressure on the clamping jaw member gradually increases along the inclined section to the pressing section.

[0009] Further, a rotating block rotatably connected to the extending block is formed in the middle of the rotating latch block. A positioning hook in limiting cooperation with the bayonet is formed on one side of the rotating block. A pressing block is formed on the other side of the rotating block. An opening is formed in the middle of the positioning hook. A positioning post cooperating with the tension spring is formed in the opening.

[0010] Further, a plurality of reserved holes are provided on the bottom plate. A limiting post for the cylinder head to be pushed in and stuck and limited is provided in each reserved hole. An elastic member is formed between the limiting post and the reserved hole.

[0011] Further, a plurality of diversion grooves for discharging drilling debris are formed on the bottom plate.

[0012] The beneficial effects of the utility model are as follows: Since the limiting assembly of the utility model slides up and down through the cooperation of two sliding blocks and the sliding grooves in the lifting assembly, the rotating latch block rotatably connected to the middle of the sliding block cooperates with the bayonets provided on the card slot under the action of the tension spring, thereby restricting the up and down movement of the sliding block. The limiting structure is simple and convenient to adjust, improving work efficiency. The arc-shaped pressing plate structure adopts an arc-shaped guiding surface with a high front and a low rear. The clamping jaw member moves backward under the top push of the cylinder head. The guiding surface with a high front and a low rear causes the clamping jaw member to turn downward until the clamping jaw member is pressed and limited. The downward pressure is applied stably and efficiently.

[0013] The first magnetic part and the second magnetic part are permanent magnets that attract each other. After the cylinder head is withdrawn, the first magnetic part and the second magnetic part drive the clamping jaw to rotate in the opposite direction. With the arc-shaped guide surface structure of the arc-shaped pressure plate, the clamping jaw pushes the mounting plate to slide forward, and the clamping jaw reopens. The structure is simple and does not require manual operation, which improves work efficiency. At the same time, the clamping jaw is a detachable structure and can be replaced according to the size of the cylinder head. With the adjustable limit assembly, it can be compatible with cylinder heads of various models and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is an exploded view of the clamping jaw assembly of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the lifting assembly and the limiting assembly of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the lifting assembly of the utility model;

[0018] Figure 5 It is an exploded view of the limit assembly of the utility model;

[0019] Figure 6 yes Figure 5 A partial enlarged view of part A;

[0020] Figure 7 It is a structural schematic diagram of the limit assembly of the utility model;

[0021] Figure 8 It is an exploded view of the bottom plate of the utility model.

[0022] In the figure: 1, bottom plate; 11, reserved hole; 12, limiting column; 13, elastic member; 14, guide groove; 2, mounting groove; 3, lifting assembly; 31, buckle seat; 32, positioning plate; 33, slide groove; 34, slot; 35, bayonet; 36, buffer member; 4, limiting assembly; 41, sliding block; 42, arc pressure plate; 421, access section; 422, inclined section; 423, pressing section; 43, rotating block; 431, rotating block; 432, positioning hook; 433, opening; 434, positioning column; 435, pressing block; 44, extending block; 45, connecting hole; 46, tension spring; 5, clamping jaw assembly; 51, mounting plate; 52, clamping jaw member; 53, cushion block; 54, push plate; 55, first magnetic member; 56, second magnetic member; 57, rotating block; 58, fixed cavity. DETAILED DESCRIPTION

[0023] like Figures 1 to 8As shown in the figure, in this embodiment, the utility model includes a bottom plate 1, at least three mounting grooves 2 are formed on the bottom plate 1, and further includes a lifting assembly 3 correspondingly arranged in the corresponding mounting grooves 2, a limiting assembly 4 slidably connected to the corresponding lifting assembly 3, and a jaw assembly 5 slidably connected to the corresponding mounting groove 2 for clamping the cylinder head. Each jaw assembly 5 is correspondingly and limit-fitted with the corresponding limiting assembly 4. The jaw assembly 5 includes a mounting plate 51 slidably fitted with the mounting groove 2, a jaw member 52 rotatably connected to the mounting plate 51 for clamping the cylinder head, and a cushion block 53 arranged at the first end of the jaw member 52 for fitting the cylinder head. The upper part of the jaw member 52 is limit-fitted with the limiting assembly 4. One end of the mounting plate 51 is formed with a push plate 54 for positioning and fitting with the cylinder head, and a first magnetic member 55 is arranged at the other end of the mounting plate 51. A second magnetic member 56 attracted to the first magnetic member 55 is arranged at the second end of the jaw member 52. The cushion block 53 is a rubber block with good elasticity, so that when the jaw member 52 presses and limits the cylinder head, it has a certain buffering effect to prevent the jaw member 52 from directly contacting the cylinder head under excessive downward pressure, thereby damaging the surface of the cylinder head. A slide rail slidably fitted with the mounting plate 51 is formed in the mounting groove 2. The cylinder head pushes the push block on the mounting plate 51, and the mounting block moves along the slide rail. The jaw member 52 located above slides in cooperation with the lower surface of the arc-shaped pressing plate 42. After the upper end of the jaw member 52 contacts the inclined section 422, the jaw member 52 rotates around the rotating block 57 in the mounting plate 51, and the cushion block 53 gradually approaches the cylinder head and continues to slide until the cushion block 53 presses the cylinder head; a number of threaded holes are equidistantly arranged on both sides of the mounting groove 2, and the positioning plate 32 in the lifting assembly 3 is fixedly connected by screws, and the installation position of the buckle seat 31 can be adjusted according to the size of the cylinder head model to be processed, so as to achieve the optimal pressing and positioning effect. The limiting assembly 4 slides up and down in cooperation with the chute 33 in the lifting assembly 3 through two sliding blocks 41. The rotating latch 43 rotatably connected to the middle of the sliding block 41 is engaged with the bayonet 35 arranged on the card slot 34 under the action of the tension spring 46, so as to limit the up and down movement of the sliding block 41. The limiting structure is simple and convenient to adjust, improving work efficiency. The arc-shaped pressing plate 42 structure adopts an arc-shaped guiding surface with a higher front and a lower rear. The jaw member 52 moves backward under the pushing of the cylinder head, and the guiding surface with a higher front and a lower rear makes the jaw member 52 turn downward until the jaw member 52 is pressed and limited, and the downward pressure is applied stably and efficiently; the first magnetic member 55 and the second magnetic member 56 are permanent magnets with magnetic attraction. After the cylinder head exits, the first magnetic member 55 and the second magnetic member 56 drive the jaw member 52 to rotate in the reverse direction. Cooperating with the arc-shaped guiding surface structure of the arc-shaped pressing plate 42, the jaw member 52 pushes the mounting plate 51 to slide forward, and the jaw member 52 reopens. The structure is simple and does not require manual operation, improving work efficiency. At the same time, the jaw member 52 is a detachable structure and can be replaced according to the size of the cylinder head. Cooperating with the adjustable limiting assembly 4, it can be compatible with cylinder heads of various different models and sizes.

[0024] In this embodiment, a rotating block 57 rotatably connected to the jaw member 52 is provided in the middle of the mounting plate 51. The mounting plate 51 forms a fixing cavity 58 for fixedly connecting the first magnetic member 55. The jaw member 52 and the rotating block 57 are connected and cooperated through a detachable rotating shaft. The first magnetic member 55 is fixedly connected to the fixing cavity 58 by glue.

[0025] In this embodiment, the lifting assembly 3 includes two oppositely arranged snap seats 31. A positioning plate 32 fixedly connected to the bottom plate 1 is formed at the bottom of each snap seat 31. The snap seat 31 forms a sliding groove 33 slidably matched with the limiting assembly 4. A clamping groove 34 is formed on one side of the sliding groove 33. The clamping groove 34 is provided with a plurality of clamping openings 35 for the limiting assembly 4 to be clamped and limited. A buffer member 36 in contact with the limiting assembly 4 is provided at the bottom of the sliding groove 33. The positioning plate 32 forms a through hole for a screw to pass through. By connecting the screw with the threaded holes arranged on both sides of the mounting groove 2, a stable connection structure is formed. The structure of the equally spaced clamping openings 35 cooperates with the rotating clamping block 43 for limiting, with a simple structure and convenient use, improving the processing and positioning efficiency.

[0026] In this embodiment, the limiting assembly 4 includes two sliding blocks 41 correspondingly and slidably matched with the corresponding sliding grooves 33, an arc-shaped pressing plate 42 arranged between the two sliding blocks 41 and limitingly matched with the jaw member 52, and rotating clamping blocks 43 correspondingly arranged in the middle of the corresponding sliding blocks 41 and clamped and limited by the clamping openings 35. An extending block 44 rotatably connected to the rotating clamping block 43 is formed in the middle of the sliding block 41. A connecting hole 45 is formed at the lower part of the sliding block 41. A tension spring 46 connected to the middle of the rotating clamping block 43 is arranged in the connecting hole 45. The limiting assembly 4 slides up and down through the cooperation of the two sliding blocks 41 and the sliding groove 33 in the lifting assembly 3. The rotating clamping block 43 rotatably connected to the middle of the sliding block 41 cooperates with the clamping openings 35 arranged on the clamping groove 34 under the action of the tension spring 46, thereby restricting the up and down movement of the sliding block 41. The limiting structure is simple and convenient to adjust, improving the working efficiency. The arc-shaped pressing plate 42 adopts an arc-shaped guiding surface with a higher front and a lower rear. The jaw member 52 moves backward under the top push of the cylinder head. The guiding surface with a higher front and a lower rear causes the jaw member 52 to turn downward until the jaw member 52 is tightly pressed and limited, and the downward pressure is applied stably and efficiently.

[0027] In this embodiment, an access section 421, an inclined section 422, and a pressing section 423 are sequentially formed along the length direction of the arc-shaped pressing plate 42. The access section 421 and the mounting plate 51 cooperate to form a rotation space for the jaw member 52 to open. The inclined section 422 is formed with an arc surface that slidably cooperates with the upper part of the jaw member 52. The height of the access section 421 is greater than the height of the pressing section 423. The downward pressure on the jaw member 52 gradually increases from the inclined section 422 to the pressing section 423. The thickness of the access section 421 is greater than the thickness of the pressing section 423. A gradually narrowing limiting space is formed between the lower surface of the pressing section 423 and the mounting plate 51. When the jaw member 52 moves backward under an external force, the spacer 53 gradually approaches and presses the cylinder head along the lower surfaces of the inclined section 422 and the pressing section 423.

[0028] In this embodiment, a rotating block 431 is formed in the middle of the rotating chuck 43 and is rotatably connected to the protruding block 44. A positioning hook 432 that is in limit fit with the bayonet 35 is formed on one side of the rotating block 431. A pressing block 435 is formed on the other side of the rotating block 431. An opening 433 is formed in the middle of the positioning hook 432. A positioning post 434 that cooperates with the tension spring 46 is formed in the opening 433. The end of the positioning hook 432 is in limit fit with the bayonet 35 under the action of the tension spring 46, which is used to support the position of the sliding block 41 and prevent the arc-shaped pressing plate 42 from moving upward under the push of the jaw member 52, so as to provide a continuous and stable downward pressure on the cylinder head.

[0029] In this embodiment, a plurality of reserved holes 11 are provided on the bottom plate 1. Each reserved hole 11 is provided with a limiting post 12 for clamping and stopping the cylinder head after it is pushed in. An elastic member 13 is formed between the limiting post 12 and the reserved hole 11. The elastic member 13 is a spring. An opening 433 is formed in the middle of the limiting post 12. The structure of the opening 433 is in guiding cooperation with the elastic member 13 to ensure the effectiveness of the movement of the limiting post 12.

[0030] In this embodiment, a plurality of diversion grooves 14 for discharging drilling debris are formed on the bottom plate 1. The diversion grooves 14 are used to clean the flowing drilling fluid or cutting fluid. The position of the diversion grooves 14 close to the middle of the bottom plate 1 is higher than the position close to the edge of the bottom plate 1, forming a slope drop, so that the drilling fluid or cutting fluid naturally flows out under the action of gravity.

[0031] The working principle of the present utility model:

[0032] Before the cylinder head is placed, the staff adjusts and locks the position of the buckle seat 31 according to the model size of the cylinder head to be processed, and simultaneously presses the pressing blocks 435 on both sides of the rotating latch 43 to move the positioning hook 432 of the rotating latch 43 away from the opening. At this time, the sliding column is in the unlocked state and can slide up and down. The staff fixes the limiting component 4 at the corresponding position according to the height of the jaw component 52. At this time, the jaw component 5 is arranged on one side of the center of the bottom plate 1.

[0033] The cylinder head is pushed in from one side of the bottom plate 1. When the cylinder head is pushed in, it presses down multiple limiting posts 12, and the cylinder head moves towards the center of the bottom plate 1. After entering a certain distance, the cylinder head pushes the push block on the mounting plate 51, and the mounting block moves along the slide rail. The jaw component 52 located above slides in cooperation with the lower surface of the arc-shaped pressing plate 42. After the upper end of the jaw component 52 contacts the inclined section 422, the jaw component 52 rotates around the rotating block 57 in the mounting plate 51, and the cushion block 53 gradually approaches the cylinder head and continues to slide until the cushion block 53 presses the cylinder head tightly. At this time, the first magnetic part 55 and the second magnetic part 56 still maintain the attracting magnetism, and cooperate with the inclined section 422 of the limiting pressing plate to provide a lateral thrust to tightly push and limit the cylinder head on the bottom plate 1. The limiting post 12 on one side of the bottom plate 1 in the cylinder head pushing direction resets and extends under the support of the elastic part 13 to form a top-pushing limit with the side wall of the cylinder head.

[0034] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, it is obvious to modify its implementation solutions according to this specification and combine them with other solutions.

Claims

1. A sliding locking fixture for cylinder head drilling, comprising a bottom plate (1), wherein at least three mounting grooves (2) are formed on the bottom plate (1), and it is characterized in that: It further includes a lifting component (3) correspondingly arranged in the corresponding installation groove (2), a limiting component (4) slidably connected to the corresponding lifting component (3), and a jaw component (5) slidably connected to the corresponding installation groove (2) for clamping the cylinder head. Each jaw component (5) is correspondingly and limit-fitted with the corresponding limiting component (4). The jaw component (5) includes a mounting plate (51) slidably fitted with the installation groove (2), a jaw piece (52) rotatably connected to the mounting plate (51) for clamping the cylinder head, and a cushion block (53) arranged at the first end of the jaw piece (52) for fitting against the cylinder head. The upper part of the jaw piece (52) is limit-fitted with the limiting component (4). One end of the mounting plate (51) is formed with a push plate (54) for positioning and fitting with the cylinder head, and a first magnetic part (55) is arranged at the other end of the mounting plate (51). A second magnetic part (56) attracted to the first magnetic part (55) is arranged at the second end of the jaw piece (52).

2. The sliding locking fixture for cylinder head drilling according to claim 1, wherein: A rotating block (57) rotatably connected to the jaw piece (52) is arranged in the middle of the mounting plate (51), and a fixing cavity (58) for fixedly connecting the first magnetic part (55) is formed in the mounting plate (51).

3. A sliding locking fixture for cylinder head drilling according to claim 1, characterized in that: The lifting component (3) includes two oppositely arranged buckle seats (31). A positioning plate (32) fixedly connected to the bottom plate (1) is formed at the bottom of each buckle seat (31). A sliding groove (33) slidably fitted with the limiting component (4) is formed in the buckle seat (31). A card slot (34) is formed on one side of the sliding groove (33), and a plurality of clamping openings (35) for the limiting component (4) to stop and be limited are arranged in the card slot (34). A buffer part (36) in contact with the limiting component (4) is arranged at the bottom of the sliding groove (33).

4. The sliding locking fixture for cylinder head drilling according to claim 3, wherein: The limiting component (4) includes two sliding blocks (41) correspondingly slidably fitted with the corresponding sliding grooves (33), an arc-shaped pressing plate (42) arranged between the two sliding blocks (41) and limit-fitted with the jaw piece (52), and a rotating clamping block (43) correspondingly arranged in the middle of the corresponding sliding block (41) and stopped and limited in the clamping opening (35). An extending block (44) rotatably connected to the rotating clamping block (43) is formed in the middle of the sliding block (41). A connecting hole (45) is formed in the lower part of the sliding block (41), and a tension spring (46) connected to the middle of the rotating clamping block (43) is arranged in the connecting hole (45).

5. A sliding locking fixture for cylinder head drilling according to claim 4, characterized in that: The arc-shaped pressing plate (42) is successively formed with an access section (421), an inclined section (422), and a pressing section (423) along the length direction. The access section (421) and the mounting plate (51) cooperate to form a rotation space for the jaw member (52) to open. The inclined section (422) is formed with an arc surface that slidably cooperates with the upper part of the jaw member (52). The height of the access section (421) is greater than the height of the pressing section (423). The jaw member (52) is gradually subjected to an increasing downward pressure from the inclined section (422) to the pressing section (423).

6. A sliding locking fixture for cylinder head drilling according to claim 4, characterized in that: The middle part of the rotating block (43) is formed with a rotating block (431) that is rotatably connected to the protruding block (44). One side of the rotating block (431) is formed with a positioning hook (432) that is in limiting cooperation with the bayonet (35). The other side of the rotating block (431) is formed with a pressing block (435). The middle part of the positioning hook (432) is formed with an opening (433), and the opening (433) is formed with a positioning post (434) that cooperates with the tension spring (46).

7. A sliding locking fixture for cylinder head drilling according to claim 1, characterized in that: The bottom plate (1) is provided with a plurality of reserved holes (11), and each reserved hole (11) is provided with a limiting post (12) for clamping and stopping the cylinder head after it is pushed in. An elastic member (13) is formed between the limiting post (12) and the reserved hole (11).

8. A sliding locking fixture for cylinder head drilling according to claim 1, characterized in that: The bottom plate (1) is formed with a plurality of diversion grooves (14) for discharging drilling debris.

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