An automatic turnover clamp suitable for cylinder block and cylinder head

Abstract

The utility model relates to a kind of automatic overturning clamps suitable for cylinder block cylinder cover, and automatic overturning clamp includes: bottom plate, sliding plate, pair of fixed branch, drive oil cylinder and pair of sliding branch.The first side of bottom plate is used to connect with robot.Fixed branch, drive oil cylinder and sliding plate are all set in the second side of bottom plate, the piston rod of drive oil cylinder is fixedly connected with sliding plate, and drive oil cylinder is used to drive sliding plate to slide on bottom plate.Sliding plate is provided with pair of sliding branch, and sliding branch and fixed branch are one-to-one corresponding.Workpiece is clamped using sliding branch and fixed branch, and two sliding branches are all set on sliding plate, and sliding plate is driven to slide using one drive oil cylinder, to realize driving two sliding branches towards or away from corresponding fixed branch.This effectively reduces the weight of the overall fixture, so that the load is reduced when robot clamps cylinder, and the requirement for robot is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tooling fixtures, and in particular to an automatic flipping fixture applicable to cylinder blocks and cylinder heads. Background Technology

[0002] Currently, cylinder block and cylinder head workpieces are generally transferred to the shot-throwing station via roller conveyor lines. The shot-throwing device generally does not have a transfer function. The workpieces are quite heavy, with cylinder head workpieces typically weighing between 100 and 200 kilograms and cylinder block workpieces typically weighing between 300 and 400 kilograms. When the robot picks up the cylinder block using a clamp, the weight of the cylinder block is much greater than that of the cylinder head. The robot has a heavy load and high requirements for it. Utility Model Content

[0003] (a) Technical problems to be solved This invention provides an automatic flipping fixture for cylinder blocks and cylinder heads, aiming to solve the problem in the prior art where robots have high requirements for the robot due to the large load when gripping cylinder blocks.

[0004] (II) Technical Solution To solve the above problems, this utility model provides an automatic flipping fixture applicable to cylinder blocks and cylinder heads, characterized in that the automatic flipping fixture includes: a base plate, a sliding plate, a pair of fixed support arms, a drive cylinder, and a pair of sliding support arms. The first side of the base plate is used for connection with the robot; The fixed support arm, the driving cylinder, and the sliding plate are all disposed on the second side of the base plate. The piston rod of the driving cylinder is fixedly connected to the sliding plate, and the driving cylinder is used to drive the sliding plate to slide on the base plate. The sliding plate is provided with a pair of sliding arms, each corresponding to a fixed arm. The sliding plate is used to drive the sliding arms to move toward the fixed arms to clamp the workpiece.

[0005] Preferably, the sliding arm is provided with a swing clamp and a limiting element, the swing clamp is hinged to the sliding arm, and the limiting element is used to limit the rotation angle of the swing clamp on the sliding arm.

[0006] Preferably, the limiting element includes a limiting plate and a return spring. The limiting plate is fixedly mounted on the sliding support arm and is located on one side of the swing clamp. The limiting plate is used to limit the rotation angle of the swing clamp. The limiting plate is provided with a pair of return springs, one end of which abuts against the swing clamp, and the hinge point between the swing clamp and the sliding arm is located between the pair of return springs.

[0007] Preferably, the swing clamp has a plurality of protrusions arranged in an array on the side opposite to the fixed support arm.

[0008] Preferably, the first side of the base plate is provided with reinforcing ribs.

[0009] Preferably, the sliding plate is provided with at least two quick-change interface groups, each quick-change interface group including a quick-change interface corresponding to the sliding arm, and the sliding arm is connected to the sliding plate through the corresponding quick-change interface.

[0010] Preferably, the base plate is provided with a pair of slide rails, the sliding plate is slidably mounted on the slide rails, and the driving cylinder is located between the pair of slide rails.

[0011] Preferably, the sliding plate is provided with a rectangular notch, the rectangular notch is located between the pairs of sliding rails, and the piston rod of the driving cylinder is located within the rectangular notch.

[0012] (III) Beneficial Effects This invention utilizes sliding arms and fixed arms to clamp the workpiece. Both sliding arms are mounted on a sliding plate, and a single hydraulic cylinder drives the sliding plate to move, causing the two sliding arms to move towards or away from their corresponding fixed arms. This structure effectively reduces the overall weight of the fixture and the distance between the workpiece's center of gravity and the six-axis flange of the industrial robot. This reduces the load on the robot when clamping the cylinder, lowering the requirements for the robot. Attached Figure Description

[0013] Figure 1 This is a side view of the automatic flipping fixture of this utility model; Figure 2 This is a structural schematic diagram of the automatic flipping fixture of this utility model from another perspective; Figure 3 This is an assembly drawing of the sliding plate and sliding support arm in this utility model.

[0014] [Explanation of Labels in the Attached Image] 1: Base plate; 11: Reinforcing rib; 12: Slide rail; 2: Sliding plate; 21: Quick-change interface; 22: Rectangular notch; 3: Fixed outrigger; 4: Drive cylinder; 5: Sliding arm; 51: Swinging clamp; 52: Limiting plate; 53: Return spring. Detailed Implementation

[0015] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] This utility model provides an automatic flipping fixture applicable to cylinder blocks and cylinder heads. The automatic flipping fixture includes: a base plate 1, a sliding plate 2, a pair of fixed support arms 3, a drive cylinder 4, and a pair of sliding support arms 5. The first side of the base plate 1 is used for connection with a robot. The fixed support arms 3, the drive cylinder 4, and the sliding plate 2 are all disposed on the second side of the base plate 1. The piston rod of the drive cylinder 4 is fixedly connected to the sliding plate 2, and the drive cylinder 4 is used to drive the sliding plate 2 to slide on the base plate 1. The sliding plate 2 is provided with a pair of sliding support arms 5, which correspond one-to-one with the fixed support arms 3. The sliding plate 2 is used to drive the sliding support arms 5 to move towards the fixed support arms 3 to clamp the workpiece.

[0020] In this invention, all parts are mounted on a base plate 1. The workpiece is clamped using sliding arms 5 and fixed arms 3. Both sliding arms 5 are positioned on a sliding plate 2, and a hydraulic cylinder 4 drives the sliding plate 2 to slide, causing the two sliding arms 5 to move towards or away from their corresponding fixed arms 3. This structure effectively reduces the overall weight of the fixture and the distance between the workpiece's center of gravity and the six-axis flange of the industrial robot. This reduces the load on the robot when clamping the cylinder, lowering the requirements for the robot.

[0021] Furthermore, the sliding arm 5 is provided with a swing clamp 51 and a limiting element. The swing clamp 51 is hinged to the sliding arm 5, and the limiting element is used to limit the rotation angle of the swing clamp 51 on the sliding arm 5. After rotating a certain angle, the swing clamp 51 will abut against the limiting element, thereby limiting the rotation angle. By providing a swing clamp 51 on the sliding arm 5, when clamping the workpiece, the swing clamp 51 can rotate to a certain extent following the shape of the workpiece, making the swing clamp 51 fit the workpiece more closely and making the clamping more stable. In a preferred embodiment, the rotation angle of the swing clamp 51 is ±3°.

[0022] Furthermore, the limiting element includes a limiting plate 52 and a return spring 53. The limiting plate 52 is fixedly mounted on the sliding support arm 5 and is located on one side of the swing clamp 51. The limiting plate 52 is used to limit the rotation angle of the swing clamp 51. A pair of return springs 53 are provided on the limiting plate 52. One end of the return spring 53 abuts against the swing clamp 51, and the hinge point between the swing clamp 51 and the sliding support arm 5 is located between the pair of return springs 53. The placement of the return spring 53 between the limiting plate 52 and the swing clamp 51 allows the swing clamp 51 to return to its original state under the action of the return spring 53 when the fixture is not clamping the workpiece, facilitating the next workpiece clamping.

[0023] In addition, multiple protrusions are arranged in an array on the side of the swing clamp 51 opposite to the fixed support arm 3. The multiple protrusions increase the friction between the swing clamp 51 and the workpiece, thereby improving the stability of the clamping.

[0024] In a preferred embodiment, a reinforcing rib 11 is provided on the first side of the base plate 1. Specifically, longitudinal and transverse ribs perpendicular to each other are provided on the first side of the base plate 1, and the contact point between the robot and the base plate 1 is located within the enclosure of the longitudinal and transverse ribs. This structure ensures the stability of the fixture frame, effectively reduces the weight of the fixture, and effectively reduces the distance between the workpiece's center of gravity and the six-axis flange of the industrial robot.

[0025] In addition, the sliding plate 2 is provided with at least two quick-change interfaces 21, each of which includes a quick-change interface 21 corresponding to a sliding arm 5. The sliding arm 5 is connected to the sliding plate 2 through the corresponding quick-change interface 21. By installing the sliding arm 5 in different quick-change interfaces 21, the distance between the sliding arm 5 and the fixed arm 3 can be adjusted according to the type of workpiece, reducing the stroke of the drive cylinder 4 and improving the clamping efficiency.

[0026] In a preferred embodiment, a pair of slide rails 12 are provided on the base plate 1, a sliding plate 2 is slidably mounted on the slide rails 12, and a drive cylinder 4 is located between the pair of slide rails 12.

[0027] Finally, a rectangular notch 22 is provided on the sliding plate 2, located between the paired slide rails 12, and the piston rod of the drive cylinder 4 is located within the rectangular notch 22. Providing the rectangular notch 22 on the sliding plate 2 and having the drive cylinder 4 located within it makes the layout of the sliding plate 2 and the drive cylinder 4 on the base plate 1 more compact, reducing the overall mass of the fixture and the load on the robot.

[0028] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. An automatic flipping fixture applicable to cylinder blocks and cylinder heads, characterized in that, The automatic flipping fixture includes: a base plate (1), a sliding plate (2), a pair of fixed support arms (3), a drive cylinder (4), and a pair of sliding support arms (5). The first side of the base plate (1) is used for connection with the robot; The fixed support arm (3), the driving cylinder (4) and the sliding plate (2) are all provided on the second side of the base plate (1). The piston rod of the driving cylinder (4) is fixedly connected to the sliding plate (2). The driving cylinder (4) is used to drive the sliding plate (2) to slide on the base plate (1). The sliding plate (2) is provided with a pair of sliding arms (5), and the sliding arms (5) correspond one-to-one with the fixed arms (3). The sliding plate (2) is used to drive the sliding arms (5) to move toward the fixed arms (3) to clamp the workpiece.

2. The automatic flipping fixture for cylinder blocks and cylinder heads as described in claim 1, characterized in that, The sliding arm (5) is provided with a swing clamp (51) and a limiting element. The swing clamp (51) is hinged to the sliding arm (5), and the limiting element is used to limit the rotation angle of the swing clamp (51) on the sliding arm (5).

3. The automatic flipping fixture for cylinder blocks and cylinder heads as described in claim 2, characterized in that, The limiting element includes a limiting plate (52) and a return spring (53). The limiting plate (52) is fixedly mounted on the sliding support arm (5) and is located on one side of the swing clamp (51). The limiting plate (52) is used to limit the rotation angle of the swing clamp (51). The limiting plate (52) is provided with a pair of reset springs (53), one end of the reset spring (53) abuts against the swing clamp (51), and the hinge point between the swing clamp (51) and the sliding arm (5) is located between the pair of reset springs (53).

4. The automatic flipping fixture for cylinder blocks and cylinder heads as described in claim 3, characterized in that, Multiple protrusions are arranged in an array on the side of the swing clamp (51) opposite to the fixed support arm (3).

5. The automatic flipping fixture for cylinder blocks and cylinder heads as described in any one of claims 1-4, characterized in that, A reinforcing rib (11) is provided on the first side of the base plate (1).

6. The automatic flipping fixture for cylinder blocks and cylinder heads as described in any one of claims 1-4, characterized in that, The sliding plate (2) is provided with at least two quick-change interface (21) groups, each of the quick-change interface (21) groups includes a quick-change interface (21) corresponding to the sliding arm (5), and the sliding arm (5) is connected to the sliding plate (2) through the corresponding quick-change interface (21).

7. The automatic tilting fixture for cylinder blocks and cylinder heads as described in any one of claims 1-4, characterized in that, The base plate (1) is provided with a pair of slide rails (12), the sliding plate (2) is slidably mounted on the slide rails (12), and the driving cylinder (4) is located between the pair of slide rails (12).

8. The automatic flipping fixture for cylinder blocks and cylinder heads as described in claim 7, characterized in that, The sliding plate (2) is provided with a rectangular notch (22), the rectangular notch (22) is located between the pairs of sliding rails (12), and the piston rod of the driving cylinder (4) is located inside the rectangular notch (22).

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