A clamping platform for turning over a workpiece and a workpiece grinding and cleaning system

Abstract

The present invention discloses a clamping platform for workpiece flipping and a workpiece grinding and cleaning system, wherein the clamping platform has a first clamping part and a second clamping part arranged perpendicularly to each other on a frame, and the flipping trajectories of the two clamping parts interfere with each other. Taking a square workpiece as an example, during cleaning, the first clamping part first clamps the two opposite faces of the workpiece to be processed, and then the first clamping part flips to the processing position to clean the other four faces. After the cleaning is completed, the first clamping part flips to the intersection with the trajectory of the second clamping part, and the second clamping part clamps the processed surface, and flips to the processing position to clean the remaining two faces. On the workbench, all faces of the workpiece can be cleaned at one time, which solves the problem of workpiece transfer during existing workpiece grinding and cleaning. The number of workpiece transfers is reduced, the workpiece transfer time is compressed, and the equipment required for transfer is reduced, thereby reducing the size of the equipment, and at the same time, the automatic grasping and movement of the workpiece can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of workpiece cleaning, and in particular relates to a clamping platform for workpiece flipping and a workpiece grinding and cleaning system. Background Art

[0002] The flash, burrs and pouring risers of castings usually exist on all surfaces of castings. The existing equipment, whether it adopts the method of moving the workpiece while the tool does not move, or the method of moving the workpiece while the tool does not move, is difficult to clean the workpiece in one go. This is not conducive to improving the efficiency of casting cleaning.

[0003] In the method where the tool does not move but the workpiece moves, different fixtures need to be designed according to the different parts that need to be cleaned, so that the cleaning parts are exposed to the outside for easy cleaning. Each process requires a set of fixtures, and the number of fixtures increases with the increase in complexity. When the process flows between the processes, manual or robot assistance is required for loading and unloading. This results in increased auxiliary time, complex equipment structure, high cost and low efficiency.

[0004] In the mode where the workpiece does not move but the tool moves, different grippers need to be equipped according to the characteristics of the workpiece. A transfer mechanism is usually provided between the two grippers. The grippers of this type of equipment are usually installed on robots, and multiple robots are required to work together. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a clamping platform for workpiece flipping and a workpiece grinding and cleaning system to solve the problem of workpiece transfer during existing workpiece grinding and cleaning.

[0006] To solve the above problems, the technical solution of the present invention is:

[0007] A clamping platform for turning over a workpiece of the present invention comprises a frame, a first clamping part and a second clamping part;

[0008] The frame is mounted on an external platform;

[0009] The first clamping part and the second clamping part are respectively arranged on the frame, and are respectively used to clamp and drive the workpiece to be processed to flip; the clamping direction and flipping direction of the first clamping part are perpendicular to those of the second clamping part, and the flipping trajectory of the first clamping part interferes with the flipping trajectory of the second clamping part;

[0010] Wherein, the first clamping part and the second clamping part are both a clamping structure, and the clamping structure includes a rotating unit, a driving unit, an execution unit and a clamping unit; the rotating unit is arranged on the frame, and the output end is connected to the first end of the execution unit, and is used to drive the execution unit to rotate; the driving unit is arranged on the frame, and the output end is connected to the input end of the rotating unit, and is used to output driving force to the rotating unit; the clamping unit is arranged at the second end of the execution unit, and is used to clamp the workpiece to be processed.

[0011] The clamping platform for turning over a workpiece of the present invention, the rotating unit comprises a first bearing seat, a second bearing seat, a transmission shaft, and a support shaft;

[0012] The first bearing seat and the second bearing seat are respectively arranged on the frame and have the same axis;

[0013] The transmission shaft is rotatably connected to the first bearing seat through a bearing, the first end of the transmission shaft extends out of the first end of the first bearing seat and is connected to the input end of the actuator unit, and the second end of the transmission shaft extends out of the second end of the first bearing seat and is connected to the output end of the drive unit;

[0014] The support shaft is rotatably connected to the second bearing seat via a bearing, and one end of the support shaft extends out of the first end of the second bearing seat and is connected to the input end of the execution unit.

[0015] The clamping platform for workpiece flipping of the present invention, the rotating unit also includes a sealing cover and a plurality of sealing rings;

[0016] The sealing cover is arranged at the second end of the second bearing seat; the sealing rings are respectively arranged at the first end of the first bearing seat and the first end of the second bearing seat, for realizing dynamic sealing.

[0017] In the clamping platform for workpiece flipping of the present invention, the bearings in the first bearing seat are two tapered roller bearings arranged back to back.

[0018] The clamping platform for workpiece flipping of the present invention, the driving unit includes a linear motion mechanism and a crank; the crank is arranged on the input end of the rotating unit; the linear motion mechanism is arranged on the frame, and the output end is connected to the input end of the crank to drive the crank to rotate.

[0019] In the clamping platform for turning over a workpiece of the present invention, the linear motion mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0020] In the clamping platform for workpiece flipping of the present invention, the execution unit is a swing arm, and the two ends of the swing arm are respectively connected to the rotating unit and the clamping unit;

[0021] The swing arm is also provided with a first limiting member; the frame is provided with a second limiting member corresponding to the first limiting member, which is used to cooperate with the first limiting member to limit the rotation of the swing arm.

[0022] In the clamping platform for workpiece flipping of the present invention, the first limiting member is a V-shaped block, and the second limiting member is a V-shaped groove.

[0023] The clamping platform for workpiece flipping of the present invention comprises a clamp and a pipeline; the clamp is installed at the output end of the execution unit, the pipeline passes through the hollow inner cavity of the execution unit, and the two ends are respectively connected to the clamp and the external device.

[0024] A workpiece grinding and cleaning system of the present invention comprises any one of the above-mentioned clamping platforms for turning over the workpiece.

[0025] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0026] 1. An embodiment of the present invention is to set a first clamping part and a second clamping part perpendicular to each other on a frame, and is composed of a rotating unit, a driving unit, an execution unit and a clamping unit. The driving unit drives the rotating unit, and the rotating unit drives the execution unit to perform a flipping motion. The clamping unit set on the execution unit is used to clamp the workpiece to be processed, and the flipping trajectories of the two clamping parts interfere with each other. Taking a square workpiece as an example, when cleaning, the first clamping part first clamps the two opposite faces of the workpiece to be processed, and then the first clamping part can be flipped to the processing position to clean the other four faces. After cleaning, the first clamping part flips to the intersection with the trajectory of the second clamping part, and the second clamping part clamps the processed surface and flips to the processing position to clean the remaining two faces. On this workbench, all faces of the workpiece can be cleaned at one time, which solves the problem of workpiece transfer during existing workpiece grinding and cleaning. Reduce the number of workpiece transfers, reduce the equipment required for transfer, and shorten the workpiece transfer time.

[0027] 2. In one embodiment of the present invention, by respectively setting corresponding first and second limiters on the execution unit and the frame, when the execution unit is turned to the working position, the first limiter engages with the second limiter, thereby limiting the movement of the execution unit in the front-to-back direction and the left-to-right direction, which can improve the rigidity and positioning repeatability of the execution unit, reduce the jitter during grinding, and maintain the positioning accuracy of the equipment for a long time, ensuring the consistency of the product. The problem of the equipment accuracy gradually shifting over time is solved, so that the equipment can maintain long-term stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a clamping platform for turning over a workpiece according to the present invention;

[0029] Figure 2 Another schematic diagram of the clamping platform for workpiece flipping of the present invention;

[0030] Figure 3 A cross-sectional view of a clamping structure of a clamping platform for turning over a workpiece according to the present invention;

[0031] Figure 4 It is a schematic diagram of the limiting part of the clamping platform for turning over the workpiece of the present invention;

[0032] Figure 5 It is a schematic diagram of a driving unit of a clamping platform for turning over a workpiece according to the present invention;

[0033] Figure 6 Another schematic diagram of a driving unit of a clamping platform for turning over a workpiece according to the present invention;

[0034] Figure 7 It is a schematic diagram of the clamping platform for workpiece flipping of the present invention in a working state.

[0035] Explanation of the reference numerals: 1: frame; 2: first clamping part; 3: second clamping part; 4: swing arm; 5: first bearing seat; 6: transmission shaft; 7: second bearing seat; 8: support shaft; 9: tapered roller bearing; 10: round nut; 11: sealing cover; 12: sealing ring; 13: crank; 14: linear motion mechanism; 15: first limit member; 16: second limit member; 17: clamp. DETAILED DESCRIPTION

[0036] The following is a further detailed description of a clamping platform for workpiece flipping and a workpiece grinding and cleaning system proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims.

[0037] Embodiment 1

[0038] See also Figure 1 , Figure 2 and Figure 7 In one embodiment, a clamping platform for flipping a workpiece includes a frame 1, a first clamping portion 2 and a second clamping portion 3.

[0039] The frame 1 is arranged on the external platform. The first clamping part 2 and the second clamping part 3 are respectively arranged on the frame 1, and are respectively used to clamp and drive the workpiece to be processed to flip. The clamping direction and flipping direction of the first clamping part 2 are perpendicular to the second clamping part 3, and the flipping trajectory of the first clamping part 2 interferes with the flipping trajectory of the second clamping part 3.

[0040] The first clamping part 2 and the second clamping part 3 are both a clamping structure, and the clamping structure includes a rotating unit, a driving unit, an execution unit and a clamping unit. The rotating unit is arranged on the frame 1, and the output end is connected to the first end of the execution unit, and is used to drive the execution unit to rotate. The driving unit is arranged on the frame 1, and the output end is connected to the input end of the rotating unit, and is used to output driving force to the rotating unit. The clamping unit is arranged at the second end of the execution unit, and is used to clamp the workpiece to be processed.

[0041] This embodiment is composed of a rotating unit, a driving unit, an executing unit and a clamping unit by arranging the first clamping part 2 and the second clamping part 3 perpendicularly to each other on the frame 1. The rotating unit is driven by the driving unit, and the executing unit is driven by the rotating unit to perform a flipping motion. The clamping unit arranged on the executing unit is used to clamp the workpiece to be processed, and the flipping trajectories of the two clamping parts interfere with each other. Taking a square workpiece as an example, when cleaning, the first clamping part 2 first clamps the two opposite faces of the workpiece to be processed, and the first clamping part 2 can be flipped to the processing position to clean the other four faces. After the cleaning is completed, the first clamping part 2 is flipped to the intersection with the trajectory of the second clamping part 3, and the second clamping part 3 clamps the processed surface and flips to the processing position to clean the remaining two faces. On this workbench, all faces of the workpiece can be cleaned at one time, which solves the problem of workpiece transfer during existing workpiece grinding and cleaning. The number of workpiece transfers is reduced, the workpiece transfer time is compressed, and the equipment required for transfer is reduced, thereby reducing the volume of the equipment, and the automatic grasping and movement of the workpiece can be realized at the same time.

[0042] The specific structure of the clamping platform for workpiece flipping of this embodiment is further described below:

[0043] See also Figure 3 In this embodiment, the execution unit is a swing arm 4, and both ends of the swing arm 4 are respectively connected to the rotating unit and the clamping unit, and the rotating unit drives the swing arm 4 to rotate with one end of the swing arm as the center.

[0044] In this embodiment, the rotating unit may specifically include a first bearing seat 5 , a second bearing seat 7 , a transmission shaft 6 , and a support shaft 8 .

[0045] The first bearing seat 5 and the second bearing seat 7 are respectively arranged on the frame 1, and the axes are the same. The transmission shaft 6 is rotatably connected to the first bearing seat 5 through a bearing, the first end of which extends out of the first end of the first bearing seat 5 and is connected to the input end of the swing arm 4, and the second end of which extends out of the second end of the first bearing seat 5 and is connected to the output end of the driving unit. The support shaft 8 is rotatably connected to the second bearing seat 7 through a bearing, one end of which extends out of the first end of the second bearing seat 7 and is connected to the input end of the swing arm 4. That is, the first bearing seat 5 and the second bearing seat 7 on the frame 1 cooperate to form a space for accommodating the swing arm 4, the transmission shaft 6 and the support shaft 8 are respectively arranged in the two bearing seats, and extend into the space and are connected to the swing arm 4 therein, the transmission shaft 6 is used to transmit the power of the driving unit to drive the swing arm 4 to rotate, and the support shaft 8 is used to support the other side of the input end of the swing arm 4, which plays a role in improving the rigidity of the swing arm 4. Among them. The transmission shaft 6 and the support shaft 8 can be connected to the swing arm 4 by bolts or other fastening methods.

[0046] Furthermore, the rotating unit may also include a sealing cover 11 and a plurality of sealing rings 12. The sealing cover 11 is disposed at the second end of the second bearing seat 7 to achieve static sealing of the second bearing seat 7. The sealing rings 12 may be disposed at the first end of the first bearing seat 5 and the first end of the second bearing seat 7, respectively, to achieve dynamic sealing at the support shaft 8 and the transmission shaft 6, thereby cooperating with the static sealing to prevent dust from entering the bearing.

[0047] Specifically, the bearings in the first bearing seat 5 are two tapered roller bearings 9 arranged back to back, and the tapered roller bearings 9 are axially fixed by a round nut 10 .

[0048] See also Figure 5 and Figure 6 , the driving unit includes a linear motion mechanism 14 and a crank 13. The crank 13 is arranged at the input end of the transmission shaft 6. The linear motion mechanism 14 is arranged on the frame 1, and the output end is connected to the input end of the crank 13, which is used to drive the crank 13 to rotate. Specifically, the linear motion mechanism 14 can be connected to the input end of the crank 13 through a hinge pin. When the linear motion mechanism 14 is extended or retracted, the crank 13 drives the transmission shaft 6 to rotate forward and reverse, thereby driving the swing arm 4 and lifting and lowering the clamp 17. Among them, the linear motion mechanism 14 can be a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0049] The clamping unit includes a clamp 17 and a pipeline. The clamp 17 is installed at the output end of the swing arm 4, and the pipeline is passed through the swing arm 4, and the two ends are connected to the clamp 17 and the external device respectively. Among them, the swing arm 4 and the transmission shaft 6 can be hollow shafts, and the pipeline driving the clamp 17 passes through the through holes of the swing arm 4 and the transmission shaft 6. The clamp 17 can be driven by hydraulic pressure, pneumatic pressure or electric power, which is not specifically limited here.

[0050] See also Figure 4In this embodiment, the swing arm 4 may be provided with a first stopper 15, and the frame 1 may be provided with a second stopper 16 corresponding to the first stopper 15, which is used to cooperate with the first stopper 15 to stop the rotation of the swing arm 4. The first stopper 15 may be a V-shaped block, and the second stopper 16 may be a V-shaped groove. Of course, in addition to the V-shaped block and the V-shaped groove, the pin hole positioning method may also be used instead, which is not specifically limited here.

[0051] When the swing arm 4 is turned to the working position, the V-shaped block engages with the V-shaped groove, thereby limiting the movement of the swing arm 4 in the front-back direction and the left-right direction, which can improve the rigidity and positioning repeatability of the swing arm 4, and at the same time reduce the jitter during grinding, and can maintain the positioning accuracy of the equipment for a long time, ensuring the consistency of the product. The problem of the equipment accuracy gradually shifting over time is solved, so that the equipment can maintain long-term stable operation.

[0052] Embodiment 2

[0053] A workpiece grinding and cleaning system includes a clamping platform for workpiece flipping of the above-mentioned embodiment 1. The clamping platform is provided with a first clamping part 2 and a second clamping part 3 perpendicular to each other on a frame 1, and the flipping trajectories of the two clamping parts interfere with each other. Taking a square workpiece as an example, when cleaning, the first clamping part 2 first clamps the two opposite faces of the workpiece to be processed, and then the first clamping part 2 can be flipped to the processing position to clean the other four faces. After the cleaning is completed, the first clamping part 2 is flipped to the intersection with the trajectory of the second clamping part 3, and the second clamping part 3 clamps the processed surface and flips to the processing position to clean the remaining two faces. On this workbench, all faces of the workpiece can be cleaned at one time, which solves the problem of workpiece transfer during existing workpiece grinding and cleaning. The number of workpiece transfers is reduced, the workpiece transfer time is compressed, and the equipment required for transfer is reduced, thereby reducing the size of the equipment, and at the same time, the automatic grasping and movement of the workpiece can be realized.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A clamping platform for turning a workpiece, characterized in that: Used for casting cleaning, comprising a frame, a first clamping part and a second clamping part; The frame is mounted on an external platform; The first clamping part and the second clamping part are respectively arranged on the frame, and are respectively used to clamp and drive the workpiece to be processed to flip; the clamping direction and flipping direction of the first clamping part are perpendicular to those of the second clamping part, and the flipping trajectory of the first clamping part interferes with the flipping trajectory of the second clamping part; Wherein, the first clamping part and the second clamping part are both a clamping structure, and the clamping structure includes a rotating unit, a driving unit, an execution unit and a clamping unit; the rotating unit is arranged on the frame, and the output end is connected to the first end of the execution unit, and is used to drive the execution unit to rotate; the driving unit is arranged on the frame, and the output end is connected to the input end of the rotating unit, and is used to output driving force to the rotating unit; the clamping unit is arranged at the second end of the execution unit, and is used to clamp the workpiece to be processed; The execution unit is a swing arm, and two ends of the swing arm are respectively connected to the rotating unit and the clamping unit; The swing arm is also provided with a first limiting member; the frame is provided with a second limiting member corresponding to the first limiting member, which is used to cooperate with the first limiting member to limit the rotation of the swing arm; When the swing arm is turned to the working position, the first limiter cooperates with the second limiter to limit the movement of the swing arm in the front-back direction and the left-right direction, thereby improving the rigidity of the swing arm and the repeatability of positioning; The clamping unit includes a clamp and a pipeline; the clamp is installed at the output end of the execution unit, the pipeline is passed through the hollow inner cavity of the execution unit, and the two ends are respectively connected to the clamp and the external device.

2. The clamping platform for workpiece flipping according to claim 1, characterized in that: The rotating unit includes a first bearing seat, a second bearing seat, a transmission shaft, and a support shaft; The first bearing seat and the second bearing seat are respectively arranged on the frame and have the same axis; The transmission shaft is rotatably connected to the first bearing seat through a bearing, the first end of the transmission shaft extends out of the first end of the first bearing seat and is connected to the input end of the actuator unit, and the second end of the transmission shaft extends out of the second end of the first bearing seat and is connected to the output end of the drive unit; The support shaft is rotatably connected to the second bearing seat via a bearing, and one end of the support shaft extends out of the first end of the second bearing seat and is connected to the input end of the execution unit.

3. The clamping platform for workpiece flipping according to claim 2, characterized in that: The rotating unit also includes a sealing cover and a plurality of sealing rings; The sealing cover is arranged at the second end of the second bearing seat; the sealing rings are respectively arranged at the first end of the first bearing seat and the first end of the second bearing seat, for realizing dynamic sealing.

4. The clamping platform for turning over a workpiece according to claim 2, characterized in that: The bearings in the first bearing seat are two tapered roller bearings arranged back to back.

5. The clamping platform for turning over a workpiece according to claim 1, characterized in that: The driving unit comprises a linear motion mechanism and a crank; the crank is arranged on the input end of the rotating unit; the linear motion mechanism is arranged on the frame, and the output end is connected to the input end of the crank to drive the crank to rotate.

6. The clamping platform for turning over a workpiece according to claim 5, characterized in that: The linear motion mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

7. The clamping platform for turning over a workpiece according to claim 1, characterized in that: The first limiting member is a V-shaped block, and the second limiting member is a V-shaped groove.

8. A workpiece grinding and cleaning system, characterized in that: It comprises a clamping platform for turning over a workpiece as described in any one of claims 1 to 7.

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