Workpiece assembling equipment

Abstract

The utility model relates to the field of pipe fitting production, in particular to a workpiece assembling device which comprises a machine box and a workpiece displacement device, and at least two stations are arranged on the top of the machine box in the first direction. The workpiece displacement device comprises a support installed on the top of the machine box, a translation mechanism connected with the support, a translation plate connected with the output end of the translation mechanism, a first driving mechanism, a second driving mechanism, a plurality of first clamping mechanisms and a plurality of second clamping mechanisms, wherein the first driving mechanism and the second driving mechanism are arranged on the translation plate, and the first clamping mechanisms and the second clamping mechanisms are arranged in the first direction. The translation direction of the translation plate is in the first direction, the output end of the first driving mechanism is connected with the first clamping mechanism, and the output end of the second driving mechanism is connected with the second clamping mechanism. According to the displacement device, all the clamping mechanisms operate synchronously, meanwhile, the workpiece is transferred to the next station, multiple mechanical arms do not need to be arranged, the structure is simpler, complex programs do not need to be arranged to ensure cooperative work of all the mechanical arms, and operation is easier and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting production, and more specifically, to a workpiece assembly equipment. Background Technology

[0002] Double-joint ball valves are a common type of valve used in piping systems. Their core feature is that both ends are designed with unions, which facilitates installation, disassembly and maintenance. They are often used in household piping, HVAC systems or industrial systems.

[0003] Currently, the industry uses a large number of industrial double-joint ball valves. The original operation was manual assembly, which required manual installation of sockets and nuts on semi-finished workpieces. This operation method was inefficient and labor-intensive. According to existing assembly equipment, each station is generally equipped with a robot. One robot moves the workpiece from the first station to the second station. After the second station is completed, the corresponding robot moves the workpiece from the second station to the third station. This assembly equipment requires the robot to work together, and the operation and structure are relatively complex. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of complex operation and structure of existing assembly equipment, and to provide a workpiece assembly equipment that simplifies operation steps and structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A workpiece assembly device is provided, including a chassis and a workpiece displacement device. At least two workstations are arranged on the top of the chassis along a first direction. The workpiece displacement device includes a bracket mounted on the top of the chassis, a translation mechanism connected to the bracket, a translation plate connected to the output end of the translation mechanism, a first driving mechanism and a second driving mechanism respectively disposed on the translation plate, and a plurality of first clamping mechanisms and a plurality of second clamping mechanisms arranged along the first direction. The translation direction of the translation plate is along the first direction. The output end of the first driving mechanism is connected to the first clamping mechanism, and the output end of the second driving mechanism is connected to the second clamping mechanism.

[0007] This utility model discloses a workpiece assembly device that requires multiple processing or assembly steps. Each workstation corresponds to one step. Semi-finished workpieces are placed at the first workstation by a feeding device or manually. Initially, the first and second clamping mechanisms each correspond to a workstation. The drive mechanism moves all clamping mechanisms to clamp the workpiece at the corresponding workstation. After clamping, the translation mechanism moves the translation plate along the first direction, transferring each workpiece to the next workstation. Then, the clamping assembly lowers the workpiece, and the translation mechanism resets the translation plate to prepare for the next stroke. The various clamping mechanisms of this displacement device operate synchronously, simultaneously transferring the workpiece to the next workstation. This eliminates the need for multiple robotic arms, resulting in a simpler structure. It also eliminates the need for complex programs to ensure coordinated operation between the robotic arms, making operation more convenient.

[0008] Furthermore, the distance between any two adjacent workstations is the same; the distance between any two adjacent first drive mechanisms, or between any two adjacent second drive mechanisms, or between any two adjacent first drive mechanisms and second drive mechanisms, is equal to the distance between any two adjacent workstations. With these consistent distances, the accurate transfer of the workpiece can be ensured without further adjustments to the positions of the first and second clamping mechanisms.

[0009] Furthermore, the number of workstations is n, and the sum of the number of the first drive mechanism and the second drive mechanism is n or n-1. This eliminates the need for redundant drive mechanisms, saving costs.

[0010] Furthermore, the first driving mechanism includes a first driving member connected to the translation plate and a first driving plate connected to the output end of the first driving member, and the first clamping mechanism is connected to the first driving plate; the second driving mechanism includes a second driving member connected to the translation plate, a first lead screw connected to the output end of the second driving member, a connecting member threadedly connected to the first lead screw, and a second driving plate connected to the connecting member, and the second clamping mechanism is connected to the second driving plate. The second driving mechanism uses a lead screw, which is more stable than other driving members and can prevent the socket placed on the semi-finished part from falling off during transfer.

[0011] Furthermore, a stop is provided on the first drive plate, and a first buffer and a second buffer are provided on the translation plate in the vertical direction, with the stop located between the first buffer and the second buffer. Through the action of the stop and the first and second buffers, the impact of a sudden stop of the first drive component is reduced, resulting in a smoother drive stroke and better stability.

[0012] Furthermore, the translation plate is provided with at least two slide rails, and both the first drive plate and the second drive plate are slidably connected to at least one of the slide rails. The slide rails can limit the translation trajectory of the first drive plate and the second drive plate, thereby improving the stability of the sliding of the first drive plate and the second drive plate.

[0013] Further, the first clamping mechanism includes a third driving member fixed to the first driving plate and a first gripper connected to the output end of the third driving member. The second clamping mechanism includes a fourth driving member fixed to the second driving plate and a second gripper connected to the output end of the fourth driving member. At least two of both the first and second grippers are provided. The third and fourth driving members are respectively used to drive the first and second grippers to clamp the workpiece. The grippers generate a clamping force on the workpiece, thereby gripping it.

[0014] Furthermore, the inner surfaces of the first and second grippers are arc-shaped. Since both the first and second grippers have arc-shaped surfaces, and the outer wall of the workpiece is cylindrical, the first and second grippers are more stable when gripping the workpiece.

[0015] Furthermore, the translation mechanism includes a fifth driving member fixed to the bracket and a second lead screw installed at the output end of the fifth driving member. The translation plate is provided with a lead screw seat, and the second lead screw is threadedly connected to the lead screw seat. The translation plate is slidably connected to the bracket. The fifth driving member drives the lead screw to rotate, thereby causing the translation plate to move along the first direction, resulting in better stability of the lead screw transmission.

[0016] Furthermore, a protective cover is also provided at the bottom of the translation plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The various clamping mechanisms of this displacement device operate synchronously, simultaneously transferring the workpiece to the next station. This eliminates the need for multiple robotic arms, resulting in a simpler structure. It also eliminates the need for complex programs to ensure coordinated operation between the robotic arms, making operation more convenient.

[0019] 2. Both the first drive assembly and the second drive assembly are driven in the vertical direction. The second drive assembly is equipped with a first lead screw, which makes the movement more stable and can better prevent the socket from falling off.

[0020] 3. A stop block is provided on the first drive plate, and a first buffer and a second buffer are provided on the translation plate in the vertical direction. Through the buffering effect of the first buffer and the second buffer, the impact of the first drive suddenly stopping is reduced, making the entire drive stroke smoother and more stable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a workpiece assembly equipment;

[0022] Figure 2 This is a schematic diagram of a workpiece displacement device.

[0023] Figure 3 for Figure 2 A magnified view of position A.

[0024] In the attached diagram: 100, chassis; 110, first station; 120, second station; 130, third station; 200, bracket; 300, translation mechanism; 310, fifth drive component; 320, second lead screw; 330, lead screw seat; 400, translation plate; 410, first buffer component; 420, second buffer component; 430, slide rail; 440, protective cover; 500, first drive mechanism; 510, first drive component; 520, first drive plate; 521, stop block; 600, second drive mechanism; 610, second drive component; 620, first lead screw; 630, connector; 640, second drive plate; 700, first clamping mechanism; 710, third drive component; 720, first gripper; 800, second clamping mechanism; 810, fourth drive component; 820, second gripper. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] Example 1

[0028] A workpiece assembly device, such as Figure 1-3As shown, the device includes a chassis 100 and a workpiece displacement device. The top of the chassis 100 has three stations along a first direction: a first station 110, a second station 120, and a third station 130. These three stations are used for placing semi-finished workpieces, installing sockets, and installing nuts, respectively. The workpiece displacement device includes a translation mechanism 300 mounted on the top of the chassis 100, a translation plate 400 connected to the output end of the translation mechanism 300, a first clamping mechanism 700, a second clamping mechanism 800, a first driving mechanism 500 and a second driving mechanism 600 disposed on the translation plate 400. The translation direction of the translation plate 400 is horizontal. The first driving mechanism 500 includes a first driving member 510 connected to the translation plate 400 and a first driving plate 520 connected to the output end of the first driving member 510. The first clamping mechanism 700 is disposed on the first driving plate 520. The second driving mechanism 600 includes a first driving member 510 connected to the translation plate 400 and a first driving plate 520 connected to the output end of the first driving member 510. The first clamping mechanism 700 is disposed on the first driving plate 520. The second driving mechanism 600 includes a first driving member 510 connected to the translation plate 400 and a second driving mechanism 600 connected to the first driving plate 400. The system includes a second driving component 610, a first lead screw 620 connected to the output end of the second driving component 610, a connector 630 threadedly connected to the first lead screw 620, and a second driving plate 640 connected to the connector 630. A second clamping mechanism 800 is fixed on the second driving plate 640. The first driving component 510 is a cylinder, and the second driving component 610 is a motor. The driving directions of the first driving component 510 and the second driving component 610 are both vertical. A stop block 521 is provided on the first driving plate 520. A first buffer component 410 and a second buffer component 420 are provided on the translation plate 400 in the vertical direction. The stop block 521 is located between the first buffer component 410 and the second buffer component 420. The first buffer component 410 and the second buffer component 420 are both headless buffer screws. The distance between two adjacent workstations is the same, which is equal to the distance between the first clamping mechanism 700 and the second clamping mechanism 800.

[0029] The working principle of this embodiment is as follows:

[0030] This utility model discloses a workpiece assembly device. In the assembly of a double-joint ball valve, initially, the semi-finished ball valve is placed on the first station 110 manually or by a feeding device. Before the start of a stroke, the first clamping mechanism 700 and the second clamping mechanism 800 are respectively positioned above the first station 110 and the second station 120. At the start of the stroke, the first driving component 510 and the second driving component 610 are activated respectively. The first driving component 510 drives the first driving plate 520 downward, and the second driving component 610 drives the lead screw to rotate, which in turn drives the second driving plate 640 downward through the connecting component 630. Until the first clamping mechanism 700 reaches the first station 110 and the second clamping mechanism 800 reaches the second station 120, the first clamping mechanism 700 and the second clamping mechanism 800 respectively clamp the workpiece on the station and move it upward to reset. After moving horizontally to above the next station, the first drive component 510 and the second drive component 610 are activated, placing the workpiece on the corresponding station, and then completing the reset, returning to the initial position, ready for the next stroke. The semi-finished workpiece is fitted with a socket at the second station 120, and the semi-finished workpiece with the socket is fitted with a nut at the third station 130. The various clamping mechanisms of this displacement device operate synchronously, simultaneously transferring the workpiece to the next station. It eliminates the need for multiple robotic arms, resulting in a simpler structure. It also eliminates the need for complex programs to ensure the coordinated work between the robotic arms, making operation more convenient.

[0031] The beneficial effects of this embodiment are as follows:

[0032] The displacement device operates synchronously with each clamping mechanism, simultaneously transferring the workpiece to the next station. This eliminates the need for multiple robotic arms, simplifying the structure and eliminating the need for complex programming to ensure coordinated operation. Each drive mechanism independently drives one clamping mechanism, providing better stability compared to a single drive mechanism driving all clamping mechanisms and better preventing the socket from falling off. The second drive mechanism 600 uses a lead screw, which offers greater stability compared to other drive components, preventing the socket placed on the semi-finished part from falling off during transfer. The first drive component 510 and the second drive component 610, operating vertically, further prevent the socket from falling off. The stop block 521 and the first and second buffer components 410 and 420 reduce the impact of a sudden stop of the first drive component 510, resulting in a smoother drive stroke and better stability.

[0033] In addition, the number of workstations can be set to four, in which case the total number of the first clamping mechanism 700 and the second clamping mechanism 800 is three. The number of workstations can be set to five, in which case the total number of the first clamping mechanism 700 and the second clamping mechanism 800 is four. The total number of the first clamping mechanism 700 and the second clamping mechanism 800 is always one less than the number of workstations.

[0034] Example 2

[0035] This embodiment is a second embodiment of a workpiece assembly device. This embodiment is similar to the first embodiment, except that, as shown in the following... Figure 2 As shown, the first clamping mechanism 700 includes a third driving member 710 fixed to the first driving plate 520 and a first gripper 720 connected to the output end of the third driving member 710. The second clamping mechanism 800 includes a fourth driving member 810 fixed to the second driving plate 640 and a second gripper 820 connected to the output end of the fourth driving member 810. There are two of each of the first gripper 720 and the second gripper 820. The inner surfaces of the first gripper 720 and the second gripper 820 are arc-shaped surfaces.

[0036] The working principle of this embodiment is as follows:

[0037] The third driving member 710 and the fourth driving member 810 are used to drive the first gripper 720 and the second gripper 820 to grip the workpiece. The gripper will generate a clamping force on the workpiece and then grasp it.

[0038] The remaining working principles of this embodiment are the same as those of Embodiment 1.

[0039] Example 3

[0040] This embodiment is a third embodiment of a workpiece assembly device. This embodiment is similar to embodiment two, except that, as shown in the example... Figure 2 As shown, the translation plate 400 is provided with four slide rails 430. The first drive plate 520 is slidably connected to two of the slide rails 430 at the same time, and the second drive plate 640 is slidably connected to the other two slide rails 430 at the same time. The translation mechanism 300 includes a fifth drive member 310 fixed on the bracket 200, a second lead screw 320 installed at the output end of the fifth drive member 310, and a lead screw seat 330 connected to the translation plate 400 and threadedly connected to the second lead screw 320. The translation plate 400 is slidably connected to the bracket 200. In this embodiment, the fifth drive member 310 is a motor, and a protective cover 440 is also provided at the bottom of the translation plate 400.

[0041] The working principle of this embodiment is as follows:

[0042] The slide rail 430 improves the stability of the sliding of the first drive plate 520 and the second drive plate 640. The fifth drive component 310 drives the second lead screw 320 to rotate, thereby driving the translation plate 400 to move along the first direction. The lead screw transmission has better stability, and the protective cover 440 provides protection for the conveying components.

[0043] The remaining working principles of this embodiment are the same as those of Embodiment 2.

[0044] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A workpiece assembly device, characterized in that, The device includes a chassis (100) and a workpiece displacement device. The top of the chassis (100) is provided with at least two workstations along a first direction. The workpiece displacement device includes a bracket (200) installed on the top of the chassis (100), a translation mechanism (300) connected to the bracket (200), a translation plate (400) connected to the output end of the translation mechanism (300), a first drive mechanism (500) and a second drive mechanism (600) respectively disposed on the translation plate (400), and a plurality of first clamping mechanisms (700) and a plurality of second clamping mechanisms (800) arranged along the first direction. The translation direction of the translation plate (400) is along the first direction. The output end of the first drive mechanism (500) is connected to the first clamping mechanism (700), and the output end of the second drive mechanism (600) is connected to the second clamping mechanism (800).

2. The workpiece assembly equipment according to claim 1, characterized in that, The distance between two adjacent workstations is the same, and the distance between two adjacent first drive mechanisms (500), or between two adjacent second drive mechanisms (600), or between adjacent first drive mechanisms (500) and second drive mechanisms (600) is equal to the distance between two adjacent workstations.

3. The workpiece assembly equipment according to claim 2, characterized in that, The number of workstations is n, and the sum of the number of the first drive mechanism (500) and the second drive mechanism (600) is n or n-1.

4. The workpiece assembly equipment according to claim 1, characterized in that, The first driving mechanism (500) includes a first driving member (510) connected to the translation plate (400) and a first driving plate (520) connected to the output end of the first driving member (510), and the first clamping mechanism (700) is connected to the first driving plate (520); the second driving mechanism (600) includes a second driving member (610) connected to the translation plate (400), a first lead screw (620) connected to the output end of the second driving member (610), a connecting member (630) threadedly connected to the first lead screw (620) and a second driving plate (640) connected to the connecting member (630), and the second clamping mechanism (800) is connected to the second driving plate (640).

5. The workpiece assembly equipment according to claim 4, characterized in that, The first drive plate (520) is provided with a stop (521), and the translation plate (400) is provided with a first buffer (410) and a second buffer (420) in the vertical direction. The stop (521) is located between the first buffer (410) and the second buffer (420).

6. The workpiece assembly equipment according to claim 4, characterized in that, The translation plate (400) is provided with at least two slide rails (430), and the first drive plate (520) and the second drive plate (640) are each slidably connected to at least one of the slide rails (430).

7. The workpiece assembly equipment according to claim 4, characterized in that, The first clamping mechanism (700) includes a third driving member (710) fixed to the first driving plate (520) and a first gripper (720) connected to the output end of the third driving member (710). The second clamping mechanism (800) includes a fourth driving member (810) fixed to the second driving plate (640) and a second gripper (820) connected to the output end of the fourth driving member (810). Both the first gripper (720) and the second gripper (820) are provided in at least two forms.

8. The workpiece assembly equipment according to claim 7, characterized in that, The inner surfaces of the first gripper (720) and the second gripper (820) are arc-shaped.

9. The workpiece assembly equipment according to claim 1, characterized in that, The translation mechanism (300) includes a fifth drive member (310) fixed on the bracket (200) and a second lead screw (320) installed at the output end of the fifth drive member (310). The translation plate (400) is provided with a lead screw seat (330). The second lead screw (320) is threadedly connected to the lead screw seat (330). The translation plate (400) is slidably connected to the bracket (200).

10. The workpiece assembly equipment according to claim 1, characterized in that, The bottom of the translation plate (400) is also provided with a protective cover (440).

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