Valve rod assembling equipment

Abstract

The utility model provides valve rod assembling equipment, and belongs to the technical field of machinery. The problem of how to ensure the machining and production efficiency is solved. The valve rod assembling equipment comprises an assembling rotary disc and a material conveying rail located on one side of the assembling rotary disc, and further comprises a clamping mechanism used for clamping a valve rod, and the clamping mechanism is connected to the upper portion of the assembling rotary disc and the upper portion of the material conveying rail in a sliding mode in the conveying direction of the material conveying rail. The valve rod assembling equipment further comprises an overturning mechanical arm used for overturning the valve rod, the overturning mechanical arm is arranged between the assembling rotary disc and the material conveying rail and located below the clamping mechanism, and the clamping mechanism can transfer the valve rod to the overturning mechanical arm from the material conveying rail. And the clamping mechanism can also transfer the valve rod from the turnover manipulator to the assembly turntable. The valve rod assembling equipment can guarantee the machining and production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to valve stem assembly equipment. Background Art

[0002] In the existing technology, the production of various valve products generally involves processing various parts first, and then assembling several parts. The valve stem, as one of the several parts, plays a vital role in valve products. It is worth mentioning that after the valve stem is produced and processed and before assembly, a sealing ring is generally required to be installed at a designated position on the valve stem.

[0003] Nowadays, mechanized production has been continuously replacing manual operations with the advancement of technology. The above-mentioned processing steps are often carried out by the cooperation of multiple robots. Specifically, a turntable that can rotate is generally provided, and a number of positioning columns for positioning the valve stem are arranged on the turntable. A feed rail connected to the vibration plate is provided on one side of the turntable, and a transfer robot for clamping the valve stem and a loading robot for fitting the sealing ring on the valve stem are provided between the turntable and the feed rail.

[0004] However, in actual operation, when the vibrating plate is conveying and loading materials, due to the center of gravity of the parts, the openings for assembly with other parts (for plugging into the positioning column) are generally facing upwards. This results in the transfer robot being unable to assemble the valve stem on the positioning column after completing the clamping work, causing the production line production to be delayed. Therefore, manual cooperation is often required to flip the valve stem, which has a certain impact on production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems in the existing technology and propose a valve stem assembly device. The technical problem to be solved by the present invention is: how to ensure the processing and production efficiency.

[0006] The purpose of the present invention can be achieved through the following technical solutions: a valve stem assembly device, comprising an assembly turntable and a feed rail located on one side of the assembly turntable, the valve stem assembly device also includes a clamping mechanism for clamping the valve stem, the clamping mechanism is slidably connected to the assembly turntable and above the feed rail along the conveying direction of the feed rail, and is characterized in that the valve stem assembly device also includes a flipping manipulator for flipping the valve stem, the flipping manipulator is arranged between the assembly turntable and the feed rail and is located below the clamping mechanism, the clamping mechanism can transfer the valve stem from the feed rail to the flipping manipulator, and the clamping mechanism can also transfer the valve stem from the flipping manipulator to the assembly turntable.

[0007] In the prior art, the feed rail cooperates with the vibrating disk to continuously transport batches of valve stems. A number of positioning posts for assembling and positioning valve stems are arranged at intervals along the circumference on the disk surface of the assembly turntable. The assembly turntable is always in an intermittent rotation state. The valve stem transferred from the feed rail by the clamping mechanism is supported by the positioning posts. While the valve stem is supported by the next positioning post, the valve stem supported on the previous positioning post is transferred to the processing mechanism for sealing ring installation. Based on this structure, the working principle of the valve stem assembly equipment is as follows: on the basis of the original structure, a turning manipulator is set between the feed rail and the assembly turntable. During the application of the processing operation, the clamping mechanism can The valve stem is clamped on the feed rail, and after sliding a certain distance along the length of the feed rail, the valve stem is installed on the flipping robot. The valve stem is clamped and flipped 180 degrees by the flipping robot so that the opening on the valve stem faces downward. The clamping mechanism then removes the valve stem from the flipping robot and transfers it to the assembly turntable. Specifically, the opening on the valve stem is plugged into the positioning column on the assembly turntable, thereby completing the transfer of the valve stem from the feed rail to the assembly turntable. In the entire process, only a series of actions need to be completed by this assembly equipment, and workers no longer need to spend time and effort to flip the valve stems on the feed rail one by one, thereby reducing labor costs while ensuring processing production efficiency.

[0008] In the above-mentioned valve stem assembly equipment, the clamping mechanism includes a material-retrieving robot and an assembly robot arranged vertically downward, and the flipping robot is arranged horizontally. When the material-retrieving robot is positioned opposite to the feed rail, the assembly robot is positioned opposite to the flipping robot. When the material-retrieving robot is positioned opposite to the flipping robot, the assembly robot is positioned opposite to the assembly turntable. Through this arrangement, when the valve stem is transferred through the clamping mechanism, the material-retrieving robot completes the process of clamping the valve stem from the feed rail and loading the valve stem into the flipping robot, and the assembly robot completes the process of clamping the valve stem from the flipping robot and transferring the valve stem to the assembly turntable, thereby achieving synchronous feeding and loading steps and effectively improving processing and production efficiency.

[0009] In the aforementioned valve stem assembly equipment, a mounting frame and a carrying frame slidably connected to the mounting frame are provided above the assembly turntable and the feed rail. The mounting frame is movable along the conveying direction of the feed rail and is capable of rising and falling relative to the assembly turntable and the feed rail. The retrieving manipulator and the assembly manipulator are both connected to the carrying frame. The mounting frame slides back and forth along the length of the feed rail, enabling the retrieving manipulator to reciprocate between the feed rail and the flipping manipulator. The carrying frame is raised and lowered on the mounting frame relative to the feed rail and the assembly turntable, enabling the retrieving manipulator and the assembly manipulator to grip the valve stem.

[0010] In the above-mentioned valve stem assembly equipment, the carrying frame and the mounting frame are slidably connected via a slide rail and a slider. The mounting frame is provided with a vertical cylinder, and the driving end of the vertical cylinder is fixedly connected to the carrying frame. The vertical cylinder is driven to enable the carrying frame to drive the clamping mechanism (i.e., the material picking robot and the assembly robot) to clamp the valve stem, and with the cooperation of the guide rail and the slider, the sliding direction of the carrying frame is guided. It is also worth mentioning that the material picking robot and the assembly robot mentioned in this application are prior art, i.e., robotic arms driven by clamping cylinders. The cylinders in the material picking robot and the assembly robot are fixed to the carrying frame, ensuring that each is securely mounted while controlling and driving each robotic arm.

[0011] In the aforementioned valve stem assembly equipment, a fixed frame, parallel to the feed rail, is provided on one side of the assembly turntable and the feed rail. The mounting frame is slidably connected to the fixed frame via a slide rail and a slider. A transverse cylinder is provided on the fixed frame, the drive end of which is fixedly connected to the mounting frame. The mounting frame is driven by the transverse cylinder mounted on the fixed frame, enabling the mounting frame and the clamping mechanism to reciprocate between the feed rails. The sliding direction of the mounting frame is guided by the cooperation of the slide rail and the slider.

[0012] In the above-mentioned valve stem assembly equipment, a connecting frame is provided on the other side of the assembly turntable and the feed rail, and a rotary cylinder is provided on the connecting frame, and the driving end of the rotary cylinder is fixedly connected to the flipping manipulator. By setting the connecting frame, the flipping manipulator is positioned between the feed rail and the assembly plate, and the flipping manipulator is driven by the rotary cylinder to drive the valve stem to flip. In addition, it is worth mentioning that the flipping manipulator mentioned in this application is a prior art. Like the material-retrieving manipulator or the assembly manipulator, it is a manipulator driven by a clamping cylinder. The clamping cylinder is fixed to the driving end of the rotary cylinder, ensuring that the installation is firm while realizing the control and drive of each manipulator.

[0013] Compared with the existing technology, this valve stem assembly equipment has the following advantages:

[0014] 1. Through the cooperation of the clamping mechanism and the flipping manipulator, the clamping mechanism can first install the valve stem on the flipping manipulator for flipping before transferring the valve stem clamped on the feed rail to the assembly turntable, so as to achieve the field adjustment of the valve stem without manual assistance, and transfer the valve stem from the flipping manipulator to the assembly turntable through the clamping mechanism, so that the valve stem can be plugged and matched with the positioning column on the assembly turntable through the downward opening, thereby realizing the positioning of the valve stem. The entire operation process no longer requires manual implementation, reducing labor costs while ensuring production efficiency.

[0015] 2. When the clamping mechanism is working, the material is transferred between the feed rail and the flipping manipulator through the material taking manipulator, and the material is transferred between the flipping manipulator and the assembly turntable through the assembly manipulator, so that the material transfer and material assembly can be carried out at the same time, effectively improving the processing production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the valve stem assembly equipment.

[0017] Figure 2 It is a structural diagram of a clamping mechanism, a carrying frame, a mounting frame and a fixing frame.

[0018] Figure 3 It is a structural diagram of the flip robot and the connecting frame.

[0019] Figure 4 It is a structural diagram of the assembly turntable.

[0020] In the figure, 1. Assembly turntable; 11. Positioning column; 2. Feed rail; 3. Clamping mechanism; 31. Retrieving robot; 32. Assembly robot; 4. Turning mechanism; 5. Mounting frame; 51. Vertical cylinder; 6. Carrying frame; 7. Fixed frame; 71. Horizontal cylinder; 8. Connecting frame; 81. Rotating cylinder; 9. Positioning frame. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1 and Figure 4 As shown, the valve stem assembly equipment includes a disc-shaped and horizontally arranged assembly turntable 1. Specifically, in the prior art, a driving motor is arranged below the assembly turntable 1, and the motor shaft of the driving motor drives the assembly turntable 1 to rotate. A plurality of positioning columns 11 are provided on the upper side plate surface of the assembly turntable, and the plurality of positioning columns 11 are arranged at intervals along the circumferential direction of the assembly turntable plate surface. The valve stem assembly equipment also includes a feed rail 2 which is long and one end of which is arranged close to the assembly turntable 1, and the other end of the feed rail 2 is connected to the vibration disk.

[0023] Combine Figure 2On one side of the assembly turntable 1 and the feed rail 2, there are provided a strip-shaped and vertically arranged positioning frame 9, a long strip-shaped and horizontally arranged fixing frame 7, an L-shaped mounting frame 5 and a carrying frame 6. The fixing frame 7 is fixed to one side of the positioning frame 9 by bolts and is arranged parallel to the feed rail 2. The vertical section of the mounting frame 5 is slidably connected to the two slide rails on the fixing frame 7 through two sliders. A fixing plate perpendicular to the plate surface of the fixing frame 7 is fixed on one end of the fixing frame 7. A horizontal cylinder 71 is fixed on the fixing plate. The driving end of the cylinder 71 is fixedly connected to the vertical section of the mounting frame 5. The mounting frame 5 is slid and positioned along the length direction of the fixed frame 7 by driving the horizontal cylinder 71. The vertical section of the carrying frame 6 is slidably connected to the two slide rails on the mounting frame 5 through two sliders. A vertical cylinder 51 is fixed on the horizontal section of the mounting frame 5, and the driving end of the vertical cylinder 51 is fixedly connected to the horizontal section of the carrying frame 6. The carrying frame 6 is lifted and lowered and positioned relative to the feed rail 2 and the assembly turntable 1 along the mounting frame 5 by driving the vertical cylinder 51.

[0024] Combine Figure 3 , an L-shaped connecting frame 8 is provided on the other side of the feeding rail 2 and the assembly turntable 1, and a rotating cylinder 81 is fixed on the vertical section of the connecting frame 8, as shown in FIG. Figure 2 and Figure 3 As shown, a clamping mechanism 3 is provided on the lower side panel of the horizontal section of the carrying frame 6, and a flipping manipulator 4 is provided on the driving end of the rotating cylinder 81. The flipping manipulator 4 is located between the feed rail 2 and the assembly turntable 1. The clamping mechanism 3 specifically includes a material picking manipulator 31 and an assembly manipulator 32. The material picking manipulator 31 and the assembly manipulator 32 are arranged at intervals on the horizontal section of the carrying frame 6 along the conveying direction of the feed rail 2 and the clamps of the two are arranged downward. The material picking manipulator 31 and the assembly manipulator 32 are respectively located on both sides of the flipping manipulator 4.

[0025] Working principle: the feed rail 2 cooperates with the vibrating plate to transport and load materials, and the vertical cylinder 51 drives the clamping mechanism 3 to move downward. The valve stem on the feed rail 2 is clamped by the material-grabbing robot 31 and then driven to reset by the vertical cylinder 51. Then the horizontal cylinder 71 works to drive the clamping mechanism 3 to move toward the assembly turntable 1, so that the material-grabbing robot 31 and the flipping robot 4 are opposite to each other. Then the vertical cylinder 51 is started again, so that the material-grabbing robot 31 puts the valve stem into the flipping robot 4 and then resets it. At this time, the rotating cylinder 81 works to drive the flipping robot 4 to rotate 180 degrees, so that the upper and lower ends of the valve stem are swapped (that is, the opening of the valve stem is facing downward). This process is the first stroke, and the assembly robot 32 in the clamping mechanism 3 does not participate in the work at all.

[0026] During the second and subsequent strokes, the horizontal cylinder 71 drives the assembly robot 32 and the flipping robot 4 of the clamping mechanism 3 to be relative to each other. At this time, the material picking robot 31 is located above the feeding rail. At this time, the vertical cylinder 51 works to control the clamping mechanism 3 to move downward, and the assembly robot 32 clamps the valve stem in the flipping robot 4. At the same time, the valve stem on the feeding rail 2 is clamped by the material picking robot 31. After the clamping mechanism 3 moves upward and resets, the horizontal cylinder works to make the positions of the material picking robot 31 and the flipping robot 4 correspond to each other, and make the assembly robot 32 and any positioning column 11 on the assembly turntable 1 relative to each other. At this time, the vertical cylinder 51 works, so that the material picking robot 31 installs the valve stem into the flipping robot 4 again, and the assembly robot 32 inserts the valve stem into the positioning column 11. The assembly turntable 1 rotates to rotate the positioning group with the valve stem to the bottom of the processing station and a sealing ring is installed on the valve stem.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as assembly turntable 1, feed rail 2, clamping mechanism 3, material retrieving manipulator 31, assembly manipulator 32, flipping mechanism 4, mounting frame 5, vertical cylinder 51, carrying frame 6, fixing frame 7, horizontal cylinder 71, connecting frame 8, rotating cylinder 81, and positioning frame 9, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A valve stem assembly device, comprising an assembly turntable (1) and a feed rail (2) located on one side of the assembly turntable (1), the valve stem assembly device further comprising a clamping mechanism (3) for clamping the valve stem, the clamping mechanism (3) being slidably connected to the assembly turntable (1) and above the feed rail (2) along the conveying direction of the feed rail (2), and characterized in that: The valve stem assembly equipment also includes a flipping manipulator (4) for flipping the valve stem. The flipping manipulator (4) is arranged between the assembly turntable (1) and the feed rail (2) and is located below the clamping mechanism (3). The clamping mechanism (3) can transfer the valve stem from the feed rail (2) to the flipping manipulator (4), and the clamping mechanism (3) can also transfer the valve stem from the flipping manipulator (4) to the assembly turntable (1).

2. The valve stem assembly equipment according to claim 1, characterized in that: The clamping mechanism (3) includes a material-retrieving manipulator (31) and an assembly manipulator (32) arranged vertically downward, and the flipping manipulator (4) is arranged horizontally. When the material-retrieving manipulator (31) is positioned relative to the feed rail (2), the assembly manipulator (32) is positioned relative to the flipping manipulator (4); when the material-retrieving manipulator (31) is positioned relative to the flipping manipulator (4), the assembly manipulator (32) is positioned relative to the assembly turntable (1).

3. The valve stem assembly equipment according to claim 2, characterized in that: A mounting frame (5) and a carrying frame (6) slidably connected to the mounting frame (5) are provided above the assembly turntable (1) and the feed rail (2); the mounting frame (5) can move along the conveying direction of the feed rail (2); the carrying frame (6) can be raised and lowered relative to the assembly turntable (1) and the feed rail (2); and the material-retrieving manipulator (31) and the assembly manipulator (32) are both connected to the carrying frame (6).

4. The valve stem assembly equipment according to claim 3, characterized in that: The carrying frame (6) and the mounting frame (5) are slidably connected via a slide rail and a slider. A vertical cylinder (51) is provided on the mounting frame (5), and a driving end of the vertical cylinder (51) is fixedly connected to the carrying frame (6).

5. The valve stem assembly equipment according to claim 3 or 4, characterized in that: A fixing frame (7) is provided on one side of the assembly turntable (1) and the feed rail (2) and is arranged parallel to the feed rail (2). The mounting frame (5) and the fixing frame (7) are slidably connected through a slide rail and a slider. A transverse cylinder (71) is provided on the fixing frame (7), and a driving end of the transverse cylinder (71) is fixedly connected to the mounting frame (5).

6. The valve stem assembly equipment according to any one of claims 1 to 4, characterized in that: A connecting frame (8) is provided on the other side of the assembly turntable (1) and the feed rail (2), a rotating cylinder (81) is provided on the connecting frame (8), and a driving end of the rotating cylinder (81) is fixedly connected to the turning manipulator (4).

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