Overturning and positioning mechanism for engine cylinder head

Abstract

An overturning and positioning mechanism for an engine cylinder head. A lower debugging mechanism (3) of the overturning and positioning mechanism comprises a placement base (31) and a lifting cylinder (32). The placement base (31) is used for placing an engine cylinder head and is driven by the lifting cylinder (32) to ascend and descend. An upper debugging mechanism (2) comprises an arrangement holder (21), positioning members (22), a driving cylinder (23), and a rotary cylinder (24). The arrangement holder (21) and the placement base (31) vertically correspond to the each other. The driving cylinder (23) is arranged on one side of the arrangement holder (21) and is connected to the positioning members (22). The positioning members (22) pass through the arrangement holder (21) to the other side thereof. The arrangement holder (21) is arranged on the rotary cylinder (24) and is driven by the rotary cylinder (24) to turn over by 180 degrees. When the engine cylinder head ascends from the placement base (31) to a position where the engine cylinder head abuts against the arrangement holder (21), the driving cylinder (23) drives the positioning members (22) to hold the engine cylinder head in place. After the placement base (31) descends, the rotary cylinder (24) drives the arrangement holder (21) to turn over so that the overturning of the engine cylinder head is completed.

Description

A flip positioning mechanism for an engine cylinder cover Technical Field

[0001] The invention relates to the field of engine cylinder cover manufacturing, and in particular to a turnover positioning mechanism for an engine cylinder cover. Background Art

[0002] To improve automated manufacturing, current automotive engine production lines are beginning to implement unmanned automated conveying and processing by integrating robotic arms and transfer equipment at each processing station, thereby improving production efficiency and freeing up labor. For example, on the production line for engine cylinder heads, different processing stations require processing on either the front or back of the cylinder head. During transfer, the robotic arm's fixture is clamped on the upper side, making it difficult to directly flip and place the cylinder head. Therefore, an intermediate station is required to flip the cylinder head at this station, allowing the robotic arm to re-grip and transfer it backward.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a flipping and positioning mechanism for an engine cylinder head. By setting up an upper and lower debugging mechanism, the flipping and positioning of the engine cylinder head can be completed, and continued transportation after flipping can be achieved.

[0005] The present invention adopts the following technical scheme: a flip positioning mechanism for an engine cylinder head, comprising a bracket, and an upper debugging mechanism and a lower debugging mechanism arranged on the bracket, the lower debugging mechanism comprising a placement seat and a lifting cylinder, the lifting cylinder being arranged on the bracket, the placement seat being used for placing the engine cylinder head and driven by the lifting cylinder to lift the placement seat; the upper debugging mechanism comprising a placement frame, a positioning piece, a driving cylinder and a rotating cylinder, the placement frame and the placement seat being arranged correspondingly up and down, the driving cylinder being arranged on one side of the placement frame and connected to the positioning piece, the positioning piece passing through the other side of the placement frame, the rotating cylinder being arranged on the bracket, the placement frame being arranged on the rotating cylinder and driven by the rotating cylinder to perform a 180-degree flip of the placement frame; when the engine cylinder head rises from the placement seat to contact the placement frame, the driving cylinder drives the positioning piece to clamp the engine cylinder head; when the placement seat is lowered, the rotating cylinder drives the placement frame to flip so that the engine cylinder head completes the flip.

[0006] As an improvement, the positioning member includes at least two positioning rods, the driving cylinder is connected to the positioning rods, and a through-hole for the positioning rods to pass through is provided on the arrangement frame, and the aperture of the through-hole is larger than the positioning rods. The positioning rods are used to be inserted into the hole structure on the surface of the engine cylinder head for adaptive positioning, and the position of the positioning rods is adjusted when the driving cylinder is driven so that the positioning rods are stuck in the engine cylinder head.

[0007] As an improvement, two positioning rods are provided, one of which is fixed and the other is driven by a driving cylinder to adjust the position.

[0008] As an improvement, the placement seat includes a base plate and a plurality of positioning columns arranged on the upper surface of the base plate, and the positioning columns are used to be inserted into the hole structure on the surface of the engine cylinder head for adaptive positioning.

[0009] As an improvement, the middle of the base plate is connected to the lifting cylinder, and sliding rods are set at the lower part of the four sides of the base plate. The four sliding rods are slidably installed on the bracket.

[0010] As an improvement, a lower plate is provided at the lower end of the four sliding rods, and a proximity switch is provided at the lower plate. The proximity switch is used to feedback a signal to stop the lifting cylinder when it descends to detect a blocking member below.

[0011] The beneficial effects of the present invention are as follows: through the setting of the upper and lower debugging mechanisms, the engine cylinder head can be flipped and positioned, and the robot can re-grip the engine cylinder head after placement and continue to transport it. This meets the situation where the robot cannot directly flip the engine cylinder head over and transport it to the next workstation when facing a complex structure of the engine cylinder head. On the basis of automated conveying and processing on the production line, the stability of the engine cylinder head transportation is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a schematic diagram of a three-dimensional structure of the present invention.

[0013] FIG2 is a second schematic diagram of the three-dimensional structure of the present invention. DETAILED DESCRIPTION

[0014] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0015] As shown in Figures 1 and 2, a specific embodiment of the flip positioning mechanism of the engine cylinder head of the present invention is shown. This embodiment includes a bracket 1, and an upper debugging mechanism 2 and a lower debugging mechanism 3 arranged on the bracket 1. The lower debugging mechanism 3 includes a placement seat 31 and a lifting cylinder 32. The lifting cylinder 32 is arranged on the bracket 1. The placement seat 31 is used to place the engine cylinder head and is driven by the lifting cylinder 32 to lift the placement seat 31; the upper debugging mechanism 2 includes a placement frame 21, a positioning member 22, a driving cylinder 23 and a rotating cylinder 24. The placement frame 21 and the placement seat 31 are arranged correspondingly in the upper and lower parts, and the driving cylinder 23 is arranged on the placement frame 21. One side of the placement rack 21 is connected to the positioning piece 22, and the positioning piece 22 passes through the other side of the placement rack 21. The rotary cylinder 24 is set on the bracket 1, and the placement rack 21 is set on the rotary cylinder 24 and driven by the rotary cylinder 24 to perform a 180-degree flip of the placement rack 21; when the engine cylinder head rises from the placement seat 31 to abut the placement rack 21, the driving cylinder 23 drives the positioning piece 22 to clamp the engine cylinder head; when the placement seat 31 is lowered, the placement rack 21 is driven by the rotary cylinder 24 to flip so that the engine cylinder head is flipped.

[0016] When the present invention is in use, the arranging frame 21 and the placement seat 31 maintain a certain upper and lower distance, which is convenient for the manipulator to move in and out of the distance and place the engine cylinder head on the placement seat 31; after the manipulator leaves, the lifting cylinder 32 drives the placement seat 31 to rise into place, at which time the arranging frame 21 and the engine cylinder head are in conflict. In specific implementation, the engine cylinder head has a hole structure corresponding to the position of the positioning member 22, and the positioning member 22 is accommodated in the hole structure. When the driving cylinder 23 drives the positioning member 22 to move, the engine cylinder head is clamped to achieve positioning; then the lifting cylinder 32 drives the placement seat 31 to descend, and the rotating cylinder 24 drives the arranging frame 21 to flip 180 degrees, so that the engine cylinder head is turned over; then the driving cylinder 23 drives the positioning member 22 to reset, releases the positioning of the engine cylinder head, and the manipulator can re-clamp the engine cylinder head and transport it to the next workstation. The structural design of the upper debugging mechanism 2 solves the problem of how to position the lower engine cylinder head, that is, a driving cylinder 23 is set on the upper side without affecting the cooperation between the lower engine cylinder head and the layout frame 21. The positioning member 22 passes through the layout frame 21 and can correspond well to the hole structure of the lower engine cylinder head, and can be driven by the driving cylinder 23 to complete the displacement positioning; after the layout frame 21 is flipped over and the positioning member 22 is reset, the engine cylinder head is placed on the layout frame 21 for direct corresponding clamping by the robot.

[0017] As an improved specific embodiment, the positioning member 22 includes at least two positioning rods, the driving cylinder 23 is connected to the positioning rods, and a through hole 211 for the positioning rods to pass through is provided on the arrangement frame 21, and the aperture of the through hole 211 is larger than the positioning rods. The positioning rods are used to be inserted into the hole structure on the surface of the engine cylinder head for adaptive positioning, and the position of the positioning rods is adjusted when the driving cylinder 23 is driven so that the positioning rods are stuck in the engine cylinder head.

[0018] As shown in Figures 1 and 2, the aperture of the through hole 211 is set to allow the positioning rod to be driven and moved by the driven cylinder 23, and then to contact the inner wall of the hole structure of the engine cylinder head to form a clamping effect. Then, when the arrangement frame 21 is flipped, the engine cylinder head can be driven to complete the flip stably; through at least two positioning rods, combined with the hole structure on the surface of the engine cylinder head, a good limiting effect is provided when the engine cylinder head is placed after flipping, and a good clamping and locking positioning effect is provided after the positioning rod is driven and moved by the driving cylinder 23.

[0019] As an improved specific implementation method, two positioning rods are provided, one of which is fixed and the other is driven by the driving cylinder 23 to adjust the position.

[0020] As shown in Figures 1 and 2, as the simplest limiting and positioning method, two positioning rods are used to cooperate with the hole structure on the engine cylinder head to achieve stable limiting. The positioning rods are set in a fixed and movable manner. The fixed positioning rod provides an accurate limiting position. The driving cylinder 23 is connected to a movable positioning rod to adjust the distance between the two positioning rods to achieve the clamping positioning of the engine cylinder head. The overall structure is simple and easy to manufacture and maintain.

[0021] As an improved specific embodiment, the placement seat 31 includes a base plate 311 and a plurality of positioning posts 312 provided on the upper surface of the base plate 311 . The positioning posts 312 are used to be inserted into the hole structure on the surface of the engine cylinder head for adaptive positioning.

[0022] As shown in Figures 1 and 2, base plate 311 provides contact support for the lower surface of the engine cylinder head. A plurality of positioning posts 312 correspond to the hole structure on the lower surface of the engine cylinder head, forming a position alignment, allowing the robot to accurately position the engine cylinder head. This ensures that when base plate 311 supports the engine cylinder head and rises to the placement frame 21, the surface hole structure on the upper surface accurately aligns with the positioning member 22. Preferably, two positioning posts 312 are provided to achieve positioning of the engine cylinder head.

[0023] As an improved specific implementation method, the middle of the bottom plate 311 is connected to the lifting cylinder 32, and sliding rods 313 are set at the lower position of the four sides of the bottom plate 311. The four sliding rods 313 are slidably installed on the bracket 1.

[0024] As shown in Figures 1 and 2, four sliding rods 313 can be slidably installed on the bracket 1 through bearing parts. The four sliding rods 313 make the structure of the bottom plate 311 stable and ensure that the lifting cylinder 32 drives the bottom plate 311 to adjust its position stably.

[0025] As an improved specific implementation method, a lower plate 314 is set at the lower end of the four sliding rods 313, and a proximity switch 315 is set at the lower plate 314. The proximity switch 315 is used to feedback a signal to stop the lifting cylinder 32 when it descends to detect the lower blocking member.

[0026] As shown in Figures 1 and 2, the lower plate 314 connects the lower ends of the four sliding rods 313 to provide structural stability for the lower ends of the four sliding rods 313. The middle part of the lower plate 314 is hollowed out for the lifting cylinder 32 to pass through without affecting each other. A proximity switch 315 is further provided to adjust and control the descending position of the bottom plate 311. During specific implementation, a blocking member is provided at the bottom. The blocking member can adjust the upper and lower positions so that the proximity switch 315 can feedback a signal to stop the lifting cylinder 32 when it descends to the point where the blocking member can be detected. In this way, the stop position of the bottom plate 311 can be adjusted to meet the placement needs of the engine cylinder head at different heights, thereby improving the lifting efficiency of the bottom plate 311.

[0027] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A turning and positioning mechanism for an engine cylinder head, characterized in that: The invention comprises a support (1), and an upper debugging mechanism (2) and a lower debugging mechanism (3) arranged on the support (1); the lower debugging mechanism (3) comprises a placement seat (31) and a lifting cylinder (32); the lifting cylinder (32) is arranged on the support (1); the placement seat (31) is used for placing an engine cylinder head and is driven by the lifting cylinder (32) to lift the placement seat (31); the upper debugging mechanism (2) comprises a placement frame (21), a positioning member (22), a driving cylinder (23) and a rotating cylinder (24); the placement frame (21) and the placement seat (31) are arranged correspondingly up and down; the driving cylinder (23) The positioning member (22) is arranged on one side of the arrangement frame (21) and connected to the positioning member (22), the positioning member (22) passes through the other side of the arrangement frame (21), the rotating cylinder (24) is arranged on the bracket (1), the arrangement frame (21) is arranged on the rotating cylinder (24) and driven by the rotating cylinder (24) to perform 180-degree flipping of the arrangement frame (21); when the engine cylinder head rises from the placement seat (31) to contact the arrangement frame (21), the driving cylinder (23) drives the positioning member (22) to clamp the engine cylinder head; when the placement seat (31) descends, the rotating cylinder (24) drives the arrangement frame (21) to flip so that the engine cylinder head is flipped.

2. The turning and positioning mechanism of an engine cylinder head according to claim 1, characterized in that: The positioning member (22) comprises at least two positioning rods, the driving cylinder (23) is connected to the positioning rods, the arrangement frame (21) is provided with through holes (211) for the positioning rods to pass through, and the aperture of the through holes (211) is larger than that of the positioning rods, the positioning rods are used to be inserted into the hole structure on the surface of the engine cylinder head for adaptive positioning, and when the driving cylinder (23) is driven, the position of the positioning rods is adjusted so that the positioning rods are clamped on the engine cylinder head.

3. The turning and positioning mechanism of an engine cylinder head according to claim 2, characterized in that: The positioning rods are provided in two numbers, one of which is fixedly arranged, and the other is driven by a driving cylinder (23) to adjust the position.

4. The turning and positioning mechanism of an engine cylinder cover according to claim 1, 2 or 3, characterized in that: The placement seat (31) comprises a bottom plate (311) and a plurality of positioning columns (312) arranged on the upper surface of the bottom plate (311), wherein the positioning columns (312) are used to be inserted into a hole structure on the surface of the engine cylinder head for fitting and positioning.

5. The turning and positioning mechanism of an engine cylinder head according to claim 4, characterized in that: The middle of the bottom plate (311) is connected to the lifting cylinder (32), and sliding rods (313) are arranged at the lower part of the bottom plate (311). The four sliding rods (313) are slidably arranged on the bracket (1).

6. The turning and positioning mechanism of an engine cylinder head according to claim 5, characterized in that: A lower plate (314) is arranged at the lower ends of the four sliding rods (313), and a proximity switch (315) is arranged at the lower plate (314). The proximity switch (315) is used to feedback a signal to stop the lifting cylinder (32) when the lower blocking member is detected.

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