Row type pipe expander workpiece conveying device

Abstract

The utility model discloses a row type pipe expander workpiece conveying device which comprises a machine frame and a movable tool arranged on the machine frame, the movable tool is provided with a fixing base used for fixing workpieces, a feeding lead screw is arranged on the upper layer of the machine frame, an upper movable base is arranged on the feeding lead screw, a telescopic clamping jaw is arranged on the upper movable base, and a clamping groove is formed in the lower layer of the machine frame. A clamping part matched with the clamping jaw is arranged on the movable tool; and the movable tool is arranged on the rack, the clamping jaw extends out of the clamping and clamping part, and then the feeding screw rod rotates to drive the upper movable seat and the movable tool connected with the upper movable seat to move together. The movable tool is driven by the lead screw to move, and the lead screw is high in driving precision and good in stability, so that a set station position can be accurately reached, and the machining quality is guaranteed. The device can be widely applied to the field of pipe expander workpiece conveying.

Description

Technical Field

[0001] The utility model relates to the technical field of tube expander feeding, in particular to a workpiece transmission device for a row-type tube expander. Background Art

[0002] In a row-type tube expander, the workpiece composed of assembled fins and copper tubes needs to pass through the tube expansion, expansion and unloading stations in sequence. During this process, the workpiece needs to be transported to each station by a conveying device. Existing conveying devices, such as the Chinese patent application number 2014104166415, the patent name is a workpiece conveying device for a tube expander. This patent uses chain transmission for conveying, which has low precision and often cannot accurately reach the specified position, causing damage to the workpiece during tube expansion and expansion. For this reason, it is necessary to improve the existing conveying structure to improve the conveying accuracy. Utility Model Content

[0003] The utility model aims to provide a workpiece transmission device for a row-type tube expander to solve the problem of low precision of the existing transmission structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a workpiece transmission device of a row-type tube expander, comprising a frame, a mobile tooling arranged on the frame, a fixed seat for fixing the workpiece being arranged on the mobile tooling, a feed screw being arranged on the upper layer of the frame, an upper moving seat being arranged on the feed screw, a retractable clamping claw being arranged on the upper moving seat, and a clamping portion cooperating with the clamping claw being arranged on the mobile tooling; the mobile tooling is arranged on the frame, the clamping claw extends out to clamp the clamping portion, and then the feed screw is rotated to drive the upper moving seat and the mobile tooling connected thereto to move together.

[0005] In order to realize the recycling of mobile tooling, a loading station is provided at the feed end of the frame, and a unloading station is provided at the other end of the frame. The loading station and the unloading station are respectively provided with lifting platforms for driving the mobile tooling to rise and fall; the lower layer of the frame is provided with a return mechanism for sending the mobile tooling from under the unloading station back to under the loading station.

[0006] In order to increase the material return speed of the mobile tooling, the material return mechanism includes a lower moving seat, on which a clamping claw with the same structure as the upper moving seat is arranged; the lower moving seat is also provided with a rotating gear, and the frame is provided with a rack that cooperates with the rotating gear.

[0007] In order to ensure the running accuracy of the lifting platform, a lifting screw is arranged on the frame, and the lifting platform is threadedly matched with the lifting screw.

[0008] In order to control the movement of the claw, the claw is connected to be provided with a claw driving cylinder which drives the claw to move back and forth.

[0009] Preferably, the end of the claw is a U-shaped bayonet, and the clamping portion is a cylindrical pin that matches the U-shaped bayonet.

[0010] In order to further improve the operation accuracy of the movable seat and ensure the correspondence with the position of each workstation, the frame is provided with a first linear rail for controlling the moving direction of the upper movable seat, the upper movable seat is provided with a first card slot adapted to the first linear rail, the upper layer of the frame is provided with a second linear rail, and the movable tooling is provided with a second card slot adapted to the second linear rail.

[0011] Beneficial effects of the utility model: The utility model drives the mobile tooling to move by a screw rod, and the screw rod driving has high precision and good stability. Therefore, it can accurately reach the set workstation position and ensure the quality of processing. The cooperation between the clamping claw and the clamping part has a simple structure and good stability. The first linear rail and the second linear rail can further ensure the running accuracy of the mobile tooling. The return mechanism adopts the cooperation of gears and racks for transportation, which has the advantages of fast transmission speed and high efficiency.

[0012] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the feeding station and the tube expansion station in the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the expanding station and the blanking station in the utility model.

[0016] Figure 4 for Figure 3 A partial enlarged view of middle A.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the mobile tooling in the utility model.

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the material return mechanism in the utility model. DETAILED DESCRIPTION

[0019] Examples, such as Figures 1 to 6As shown, a workpiece transmission device for a row-type tube expander includes a frame 1, on which a loading station I, a tube expansion station II, a flaring station III and a unloading station IV are sequentially arranged in a straight line direction. In order to automatically and accurately deliver the workpiece on the loading station I to each subsequent station, a mobile tool 2 that can move back and forth is arranged on the frame 1, and a fixed seat 3 for fixing the workpiece 100 is arranged on the mobile tool 2. The structure of the fixed seat 3 is a prior art and will not be described in detail. In order to ensure that the mobile tool 2 moves in a straight line direction, a second linear rail 15 is arranged on the upper layer of the frame 1, and a second card slot 16 adapted to the second linear rail 15 is arranged on the mobile tool 2. The second card slot 16 cooperates with the second linear rail 15 to ensure that the mobile tool 2 moves back and forth in a straight line direction. For the convenience of subsequent description, the moving direction of the mobile tool at each station is set as the longitudinal direction, and the direction perpendicular to the moving direction is set as the transverse direction.

[0020] The movable fixture 2 is driven by a screw assembly. Specifically, a feed screw 4 is provided on the upper layer of the frame 1. One end of the feed screw 4 is connected to a screw motor 41 for driving the feed screw 4 to rotate. An upper movable seat 5 for moving back and forth is provided on the feed screw 4. The feed screw 4 rotates to drive the upper movable seat 5 to move back and forth. The upper movable seat 5 is arranged side by side with the movable fixture 2. To ensure that the upper movable seat 5 moves in a straight line direction, a first linear rail 13 for controlling the moving direction of the upper movable seat 5 is provided on the frame 1. A first card slot 14 adapted to the first linear rail 13 is provided on the upper movable seat 5. The first card slot 14 cooperates with the first linear rail 13 to ensure that the upper movable seat 5 moves in a straight line direction.

[0021] The upper movable seat 5 is provided with a retractable claw 6, and the mobile tooling 2 is provided with a clamping portion 7 that cooperates with the claw 6. Preferably, the claw 6 is driven to move by a cylinder, that is, a claw driving cylinder 12 is provided on the upper movable seat 5, and the movable end of the claw driving cylinder 12 is fixedly connected to the claw 6. To ensure the moving direction of the claw 6, a third linear rail 17 is provided on the upper movable seat 5, and a fourth clamping groove 62 that matches the third linear rail 17 is provided on the claw 6. The end of the claw 6 is a U-shaped bayonet 61, and the clamping portion 7 is a cylindrical pin that matches the U-shaped bayonet 61. When the upper movable seat 5 needs to move, the claw driving cylinder 12 drives the claw 6 to move in the direction of the mobile tooling 2 (laterally), and the U-shaped bayonet 61 is clamped into the clamping portion 7 to achieve the connection and fixation of the upper movable seat 5 and the mobile tooling 2. The feed screw 4 rotates, driving the upper movable seat 5 to move, thereby driving the mobile tooling 2 to move. In order to improve the efficiency of movement, three upper moving seats 5 are arranged on the frame 1, and the moving seats 5 are connected by connecting rods 18. The positions of the upper moving seats 5 correspond to the three stations. For example, when the first upper moving seat 5 is located at the loading station I, the second upper moving seat 5 is located at the tube expansion station II, and the third upper moving seat 5 is located at the flaring station III. After the tube expansion and flaring are completed, the feed screw 4 rotates, driving the movable tooling 2 to move forward one station, so that the workpiece loaded at the loading station I is transferred to the tube expansion station II for tube expansion, the workpiece originally at the tube expansion station II is transferred to the flaring station III for flaring, and the workpiece originally at the flaring station III is transferred to the unloading station IV, and the flared workpiece is taken away by the equipment.

[0022] In order to enable the mobile tooling 2 to quickly return to the loading station I after unloading, to prepare to receive new workpieces and transfer them to the expansion and flaring stations for expansion and flaring, the loading station I and the unloading station IV are respectively provided with a lifting platform 8 for driving the mobile tooling 2 to rise and fall, and the lower layer of the frame 1 is provided with a return mechanism 10 for sending the mobile tooling 2 from the bottom of the unloading station IV back to the bottom of the loading station I. When the mobile tooling 2 is located at the unloading station IV, after unloading is completed, the lifting platform 8 drives the mobile tooling 2 to move down to the return mechanism 10, and transports it to the bottom of the loading station I through the return mechanism 10, and then the mobile tooling 2 is raised to the loading station I through the lifting platform 8, thereby completing the recycling of the mobile tooling 2.

[0023] In order to ensure the stability and accuracy of the operation of the lifting platform 8, the lifting platform 8 is driven by a screw, that is, a lifting screw 9 is provided on the frame 1, a screw nut (not shown in the figure) matched with the lifting screw 9 is provided on the lifting platform 8, and one end of the lifting screw 9 is connected to a lifting screw drive motor 91 that drives the lifting screw 9 to rotate. At the same time, a fourth linear rail 19 arranged in a vertical direction is provided on both sides of the lifting platform 8 on the frame 1, and a third limit slot (not shown in the figure) matched with the fourth linear rail 19 is provided on the lifting platform 8.

[0024] The material return mechanism 10 includes a lower moving seat 101, on which a claw 6 having the same structure as the upper moving seat 5 is provided. In order to improve the efficiency of the return transmission, a rotating gear 102 and a gear motor assembly 103 for driving the rotating gear 102 to rotate are provided on the lower moving seat 101, and a rack 11 for cooperating with the rotating gear 102 is provided on the frame 1. The gear motor assembly 103 drives the rotating gear 102 to rotate and cooperates with the rack 11, thereby driving the moving tooling 2 to move quickly.

[0025] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A workpiece transmission device for a row-type tube expander, comprising a frame (1), a mobile tool (2) arranged on the frame (1), the mobile tool (2) being provided with a fixing seat (3) for fixing the workpiece, characterized in that: The upper layer of the frame (1) is provided with a feed screw (4), an upper movable seat (5) is provided on the feed screw (4), a retractable clamping claw (6) is provided on the upper movable seat (5), and a clamping portion (7) cooperating with the clamping claw (6) is provided on the movable tooling (2); the movable tooling (2) is placed on the frame (1), the clamping claw (6) extends out to clamp the clamping portion (7), and then the feed screw (4) rotates to drive the upper movable seat (5) and the movable tooling (2) connected thereto to move together.

2. The workpiece transmission device of the row-type tube expander according to claim 1, characterized in that: A loading station (I) is arranged at the feeding end of the frame (1), and a unloading station (IV) is arranged at the other end of the frame (1); a lifting platform (8) for driving the movable tooling (2) to rise and fall is arranged on the loading station (I) and the unloading station (IV), respectively; and a return mechanism (10) for returning the movable tooling (2) from below the unloading station (IV) to below the loading station (I) is arranged at the lower layer of the frame (1).

3. The workpiece transmission device of the row-type tube expander according to claim 2, characterized in that: The material return mechanism (10) comprises a lower movable seat (101), on which a claw (6) having the same structure as that of the upper movable seat (5) is arranged; a rotating gear (102) is also arranged on the lower movable seat (101), and a rack (11) cooperating with the rotating gear (102) is arranged on the frame (1).

4. The workpiece transmission device of the row-type tube expander according to claim 2, characterized in that: The frame (1) is provided with a lifting screw rod (9), and the lifting platform (8) is threadably matched with the lifting screw rod (9).

5. The workpiece transmission device of the row-type tube expander according to claim 1, characterized in that: The clamping claw (6) is connected to a clamping claw driving cylinder (12) for driving the clamping claw (6) to move back and forth.

6. The workpiece transmission device of the row-type tube expander according to claim 5, characterized in that: The end of the clamping claw (6) is a U-shaped bayonet (61), and the clamping portion (7) is a cylindrical pin matched with the U-shaped bayonet (61).

7. The workpiece transmission device of the row-type tube expander according to claim 1, characterized in that: The frame (1) is provided with a first linear rail (13) for controlling the moving direction of the upper movable seat (5); the upper movable seat (5) is provided with a first card slot (14) adapted to the first linear rail (13); the upper layer of the frame (1) is provided with a second linear rail (15); and the movable tooling (2) is provided with a second card slot (16) adapted to the second linear rail (15).

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