A flipping device

Abstract

A flipping device, for flipping a workpiece, relates to the technical field of precision workpiece detection equipment, and comprises: a base fixed to the ground; a flipping support frame rotatably connected to the base at one end; a hydraulic drive unit rotatably connected to both the base and the flipping support frame; a bottom clamp is fixedly installed on one end of the flipping support frame rotatably connected to the base; and a top clamp slidably connected to the other end of the flipping support frame and cooperating with the bottom clamp to clamp the workpiece, and the top clamp is coaxial with the bottom clamp; the workpiece is clamped between the top clamp and the bottom clamp, and the flipping support frame is driven to rotate by the hydraulic drive unit, so that the flipping support frame is in an upright or horizontal state. The flipping device has a simple structure, is easy to operate, and runs smoothly. It is driven by a hydraulic drive unit, and has a greater driving force than the conventional sliding screw nut cooperation method, and can meet the uprighting requirements of cylindrical or conical workpieces weighing more than 1 ton, and is simple and convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of precision workpiece detection equipment, and in particular to a turning device. Background Art

[0002] In view of the particularity of the inspection object and the absolute safety requirements, the lifting problem has always been a technical problem that has plagued the industrial CT vertical inspection of cylindrical and conical precision workpieces (with conical and round heads). At present, the industrial CT vertical inspection of small and medium-sized cylindrical and conical precision workpieces mainly adopts special fixtures for clamping, and the workpiece erection and lifting method of double cranes. This method requires the design of complex structures and a wide variety of special fixtures. The erection and lifting method of double cranes requires the training of specialized operating technicians, and the completion of the entire process requires close coordination and cooperation of multiple operators, which is time-consuming and labor-intensive and occupies a large amount of human resources.

[0003] In order to solve the above problems, a workpiece side-turning erection device using a common three-phase asynchronous motor to drive a sliding screw nut is used in the industrial CT vertical inspection of small and medium-sized cylindrical and conical precision workpieces. However, due to the use of a typical laborious mechanism such as a sliding screw nut, strict rigidity requirements are imposed on the flipping device frame. Currently, it can only meet the erection requirements of cylindrical and conical precision workpieces with a mass of less than 1 ton, and its application range is very limited. Summary of the invention

[0004] In view of the problems that the existing flipping device is complicated to operate and has a small application range, the present invention adopts the following technical solutions:

[0005] A turning device, used for turning a workpiece, comprising:

[0006] A base fixed to the ground;

[0007] A flip support frame rotatably connected to the base at one end;

[0008] A hydraulic drive unit rotatably connected to both the base and the flip support frame;

[0009] A bottom clamp is fixedly installed on one end of the flip support frame that is rotatably connected to the base; and

[0010] A top clamp slidably connected to the other end of the flip support frame and cooperating with the bottom clamp to clamp the workpiece, and the top clamp is coaxial with the bottom clamp;

[0011] The hydraulic drive unit drives the flip support frame to rotate and put it in an upright or horizontal state.

[0012] Compared with the prior art, the present invention has the following beneficial effects: when in use, the workpiece is clamped between the top clamp and the bottom clamp, and the flip support frame is driven to rotate by the hydraulic drive unit, so that the flip support frame is in an upright or horizontal state. The flip device has a simple structure, is easy to operate, and runs smoothly. It is driven by a hydraulic drive unit, and has a greater driving force than the conventional sliding screw nut combination method. It can meet the uprighting requirements of cylindrical or conical workpieces weighing more than 1 ton, is simple and convenient to operate, and occupies little space.

[0013] Preferably, the flip support frame has slide rails fixedly installed on opposite sides of one end away from the bottom clamp, a slide plate is slidably connected to the slide rail, a locking screw cooperating with the flip support frame is installed on the slide plate, and the top clamp is fixedly installed on the slide plate.

[0014] Preferably, a groove is provided at a central position of one side of the bottom clamp close to the workpiece, an internal thread is provided in the groove, and the bottom of the workpiece is threadedly connected to the groove.

[0015] Preferably, a slot for engaging with a head at the top of the workpiece is provided at a center position of the top clamp close to one side of the workpiece.

[0016] Preferably, the hydraulic drive unit comprises a single-stage hydraulic cylinder, a connecting end of the single-stage hydraulic cylinder is rotatably connected to the base, and a telescopic end of the single-stage hydraulic cylinder is rotatably connected to the flip support frame.

[0017] Preferably, an anti-side swing bracket is foldably installed between the base and the flip support frame.

[0018] Preferably, a plurality of rollers are fixedly mounted on the side wall of the flip support frame close to the workpiece along its length direction, the plurality of rollers are in two groups and are symmetrically distributed on both sides of the workpiece, and each roller abuts against the workpiece.

[0019] Preferably, a manual hoist hanger is fixedly mounted on the end of the flip support frame away from the bottom clamp.

[0020] Preferably, the bottom clamp and the top clamp are tightened and reinforced by a plurality of connecting components, and the plurality of connecting components are evenly distributed along the circumference of the workpiece, and each connecting component includes two wire rope tensioners respectively fixedly mounted on the top clamp and the bottom clamp, and a wire rope fixedly connected between the two wire rope tensioners.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the structure of an embodiment of the present invention in a horizontal position.

[0023] Figure 2 for Figure 1 Schematic diagram of the structure in the upright state.

[0024] The numbers in the figure are: 1. base; 2. flip support frame; 21. slide rail; 22. slide plate; 23. locking screw; 24. roller; 25. manual hoist bracket; 3. top clamp; 4. bottom clamp; 5. single-stage hydraulic cylinder; 6. anti-side swing bracket; 7. workpiece; 8. wire rope tensioner; 9. wire rope. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1 As shown, an embodiment of the present invention provides a turning device for turning a workpiece 7, comprising:

[0027] A base 1 fixed to the ground;

[0028] A flip support frame 2 rotatably connected to the base 1 at one end;

[0029] A hydraulic drive unit rotatably connected to the base 1 and the flip support frame 2;

[0030] A bottom clamp 4 is fixedly installed on one end of the flip support frame 2 which is rotatably connected to the base 1; and

[0031] A top clamp 3 slidably connected to the other end of the flip support frame 2 and cooperating with the bottom clamp 4 to clamp the workpiece 7, and the top clamp 3 is coaxial with the bottom clamp 4;

[0032] The workpiece 7 is clamped between the top clamp 3 and the bottom clamp 4, and the flip support frame 2 is driven to rotate by the hydraulic drive unit, so that the flip support frame 2 is in an upright or horizontal state. The flip device has a simple structure, convenient operation, and stable operation. It is driven by a hydraulic drive unit. Compared with the conventional sliding screw nut combination method, the driving force is greater, and it can meet the erection requirements of cylindrical or conical workpieces 7 weighing more than 1 ton. The operation is simple and convenient, and it occupies a small space.

[0033] like Figure 1As shown, according to another embodiment of the present invention, the flipping device is further optimized, and the flipping support frame 2 included in it is fixedly installed with slide rails 21 on the opposite sides of one end of the flipping support frame 2 away from the bottom clamp 4, and a slide plate 22 is slidably connected to the slide rail 21, and a locking screw 23 cooperating with the flipping support frame 2 is installed on the slide plate 22, and the top clamp 3 is fixedly installed on the slide plate 22; when the workpiece 7 is clamped between the top clamp 3 and the bottom clamp 4, the slide plate 22 is slid according to the length of the workpiece 7, thereby driving the top clamp 3 fixedly connected to the slide plate 22 to abut against the workpiece 7, thereby cooperating with the bottom clamp 4 to clamp the workpiece 7 firmly; and at the same time, tighten the locking screw 23 on the slide plate 22 so that the locking screw 23 is pressed against the outer wall of the flipping support frame 2 to prevent the slide plate 22 from sliding on the slide rail 21 during the flipping process of the workpiece 7, so that the workpiece 7 falls from between the top clamp 3 and the bottom clamp 4 and causes damage to the workpiece 7.

[0034] like Figure 2 As shown, according to another embodiment of the present invention, the flipping device further optimizes the bottom clamp 4 and the top clamp 3 included therein, and the bottom clamp 4 is provided with a groove at the center position close to the side of the workpiece 7, and the groove is provided with an internal thread, and the bottom of the workpiece 7 is threadedly connected to the groove; the workpiece 7 is threadedly connected to the groove of the bottom clamp 4, so that the workpiece 7 is clamped more firmly.

[0035] The top clamp 3 is provided with a slot at the center position of one side close to the workpiece 7, which is clamped with the head on the top of the workpiece 7; the bottom clamp 4 is threadedly connected to the workpiece 7 and the slot is clamped with the head on the top of the workpiece 7, so that when the workpiece 7 is flipped, the bottom clamp 4 and the top clamp 3 clamp the workpiece 7 more firmly.

[0036] like Figure 1 As shown, according to another embodiment of the present invention, the flipping device further optimizes the hydraulic drive unit it includes, and the hydraulic drive unit includes a single-stage hydraulic cylinder 5, the connecting end of the single-stage hydraulic cylinder 5 is rotatably connected to the base 1, and the telescopic end of the single-stage hydraulic cylinder 5 is rotatably connected to the flipping support frame 2; the single-stage hydraulic cylinder 5 has the functions of power-off self-locking, manual reset, bidirectional thrust and balancing gravity, and the driving force of the single-stage hydraulic cylinder 5 is large, which can meet the erection requirements of cylindrical or conical workpieces 7 weighing more than 1 ton, and is safe and reliable; because the single-stage hydraulic cylinder 5 required in the present invention has a large stroke during operation, it is necessary to reserve a certain depth of ground groove in advance at the corresponding position of the foundation during installation to ensure that the single-stage hydraulic cylinder 5 does not collide with the ground during rotation.

[0037] like Figure 1As shown, according to another embodiment of the present invention, the flipping device, preferably, has an anti-sway bracket 6 foldably installed between the base 1 and the flipping support frame 2; the anti-sway bracket 6 includes two brackets which are rotatably connected to the base 1 and the flipping support frame 2 respectively, and the two brackets are rotatably connected to each other, when the flipping support frame 2 drives the workpiece 7 to stand upright, the two brackets unfold and rely on their own rigidity to prevent the workpiece 7 from swaying sideways; when the flipping support frame 2 drives the workpiece 7 to lie flat and reset, the two brackets are folded together so that the two brackets do not occupy too much space.

[0038] like Figure 2 As shown, according to another embodiment of the present invention, the flipping device further optimizes the flipping support frame 2 included therein, and a plurality of rollers 24 are fixedly installed on the side wall of the flipping support frame 2 close to the workpiece 7 along its length direction, and the plurality of rollers 24 are in two groups and symmetrically distributed on both sides of the workpiece 7, and each roller 24 is against the workpiece 7; when the workpiece 7 is clamped between the top clamp 3 and the bottom clamp 4, the two groups of rollers 24 have a supporting and clamping function on the workpiece 7, and can perform rotational fine-tuning of the workpiece 7 through the rolling characteristics of the rollers 24 when the workpiece 7 is clamped.

[0039] like Figure 2 As shown, according to another embodiment of the present invention, in the flipping device, preferably, a manual hoist bracket 25 is fixedly installed on the end of the flipping support frame 2 away from the bottom clamp 4; the manual hoist bracket 25 is the hanging fulcrum of the mini manual hoist, which can connect the mini manual hoist with the skateboard 22 to prevent the skateboard 22 from shifting in position during the flipping process of following the workpiece 7.

[0040] like Figure 2 As shown, according to another embodiment of the present invention, in the flipping device, preferably, the bottom clamp 4 and the top clamp 3 are tightened and reinforced by a plurality of connecting components, and the plurality of connecting components are evenly distributed along the circumference of the workpiece 7, and each connecting component includes two wire rope tensioners 8 respectively fixedly mounted on the top clamp 3 and the bottom clamp 4, and a wire rope 9 fixedly connected between the two wire rope tensioners 8; when the workpiece 7 is clamped between the top clamp 3 and the bottom clamp 4, the wire rope tensioner 8 is operated to thereby contract and tighten the wire rope 9, thereby ensuring that the top clamp 3 and the bottom clamp 4 firmly clamp the workpiece 7; the wire rope tensioner 8 and its working principle are prior art and are not described in detail here.

[0041] The operating principle of the present invention is as follows: when the present invention is in use, the flip support frame 2 is in a horizontal reset state, and the bottom of the workpiece 7 to be measured is threadedly connected to the bottom clamp 4. According to the length of the workpiece 7, the sliding slide 22 drives the top clamp 3 to slide so that the slot on the top clamp 3 is engaged with the head on the top of the workpiece 7, and then the locking screw 23 on the slide 22 is tightened to abut against the flip support frame 2 to fix the slide 22. When necessary, the mini manual hoist can be hung on the manual hoist hanger 25, and the mini manual hoist is connected to the slide 22 to limit its position to prevent the slide 22 from shifting in the process of flipping the workpiece 7; then the wire rope tensioner 8 is tightened to reinforce the workpiece 7 between the top clamp 3 and the bottom clamp 4, and then the single-stage hydraulic cylinder 5 is driven to make the flip support frame 2 drive the workpiece 7 to rotate. At this time, the anti-side swing bracket 6 located between the base 1 and the flip support frame 2 is slowly moved as the workpiece 7 is erected. When the workpiece 7 is completely horizontal, the wire rope tensioner 8 is loosened, the locking screw 23 is loosened, and the sliding slide 22 drives the top clamp 3 to slide so that the card slot is separated from the head at the top of the workpiece 7, and then the workpiece 7 is unscrewed from the bottom clamp 4, and finally the workpiece 7 that has passed the inspection is hoisted into the warehouse; this flipping device can realize the seamless connection of the whole operation process of "clamping-erecting workpiece 7-hoisting-inspection-disassembly-reset of workpiece 7-clamp disassembly-workpiece 7 hoisting into the warehouse", effectively compressing the time-consuming intermediate auxiliary links such as erection and hoisting of the workpiece 7, and improving the efficiency of industrial CT vertical inspection of small and medium-sized cylindrical and conical precision workpieces 7.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A turning device for turning a workpiece (7), characterized in that: include: A base (1) fixed to the ground; A flip support frame (2) rotatably connected to the base (1) at one end; A hydraulic drive unit rotatably connected to the base (1) and the flip support frame (2); A bottom clamp (4) is fixedly mounted on one end of the flip support frame (2) rotatably connected to the base (1); and A top clamp (3) slidably connected to the other end of the flip support frame (2) and cooperating with the bottom clamp (4) to clamp the workpiece (7), and the top clamp (3) and the bottom clamp (4) are coaxial; The hydraulic drive unit drives the flip support frame (2) to rotate and put it in an upright or horizontal state; The flip support frame (2) has a sliding rail (21) fixedly mounted on opposite sides of one end away from the bottom clamp (4), a slide plate (22) is slidably connected to the sliding rail (21), a locking screw (23) matching the flip support frame (2) is mounted on the slide plate (22), and the top clamp (3) is fixedly mounted on the slide plate (22); An anti-side sway bracket (6) is foldably installed between the base (1) and the flip support frame (2), and the anti-side sway bracket (6) comprises two brackets which are rotatably connected to the base (1) and the flip support frame (2) respectively, and the two brackets are rotatably connected to each other. When the flip support frame (2) drives the workpiece (7) to stand upright, the two brackets unfold and rely on their own rigidity to prevent the workpiece (7) from swaying sideways; when the flip support frame (2) drives the workpiece (7) to lie flat and reset, the two brackets fold together so that the two brackets do not occupy too much space.

2. A turning device according to claim 1, characterized in that: The bottom fixture (4) is provided with a groove at the center position of one side close to the workpiece (7), and an internal thread is provided in the groove. The bottom of the workpiece (7) is threadedly connected to the groove.

3. A turning device according to claim 1, characterized in that: A clamping groove for clamping with the sealing head at the top of the workpiece (7) is provided at a central position of one side of the top clamp (3) close to the workpiece (7).

4. A turning device according to claim 1, characterized in that: The hydraulic drive unit comprises a single-stage hydraulic cylinder (5), the connection end of the single-stage hydraulic cylinder (5) is rotatably connected to the base (1), and the telescopic end of the single-stage hydraulic cylinder (5) is rotatably connected to the flip support frame (2).

5. A turning device according to claim 1, characterized in that: A plurality of rollers (24) are fixedly mounted on the side wall of the flip support frame (2) close to the workpiece (7) along its length direction. The plurality of rollers (24) are in two groups and are symmetrically distributed on both sides of the workpiece (7). Each roller (24) abuts against the workpiece (7).

6. A turning device according to claim 5, characterized in that: A manual hoist hanger (25) is fixedly mounted on the end of the flip support frame (2) away from the bottom clamp (4).

7. A turning device according to claim 6, characterized in that: The bottom clamp (4) and the top clamp (3) are tightened and reinforced by a plurality of connecting components, and the plurality of connecting components are evenly distributed along the circumference of the workpiece (7). Each connecting component includes two wire rope tensioners (8) respectively fixedly mounted on the top clamp (3) and the bottom clamp (4), and a wire rope (9) fixedly connected between the two wire rope tensioners (8).

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