Material suction device

Abstract

The utility model discloses a material suction device which comprises a rotation driving mechanism, a lifting driving mechanism, a pitch changing mechanism and a plurality of suction heads, the suction heads are all connected with the pitch changing mechanism, the pitch changing mechanism is used for adjusting the distance between the suction heads, the pitch changing mechanism is connected with the lifting driving mechanism, and the lifting driving mechanism is used for adjusting the lifting height of the pitch changing mechanism. The multiple suction heads synchronously ascend and descend along with the pitch changing mechanism, the lifting driving mechanism is connected with the rotation driving mechanism, the rotation driving mechanism is used for driving the lifting driving mechanism to rotate in the horizontal direction, and the pitch changing mechanism and the multiple suction heads synchronously rotate along with the lifting driving mechanism. By arranging the rotary driving mechanism, the lifting driving mechanism and the distance changing mechanism, the direction and the distance of the suction heads can be adjusted; in addition, by adopting the connecting mode in the application, the multiple suction heads can be adjusted by adopting one lifting driving mechanism, one rotating driving mechanism and one pitch changing mechanism, and the structure of the material suction device is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of material suction devices, in particular to a material suction device. Background Art

[0002] Suction devices are commonly used in automated production equipment. They can be used to suck up multiple workpieces and place them in designated locations, significantly reducing labor costs. For example, in the case of stainless steel sheet stamping products, laser welding is required to weld two different products together. Due to the different production processes of different products, the size, direction, and spacing of the products vary. A suction head is needed to hold the stainless steel sheet and place it stably on another stainless steel sheet for welding. However, conventional suction devices cannot adjust the direction and spacing of the stainless steel sheet, making it difficult to improve welding accuracy. This can lead to misalignment of the stainless steel sheet, resulting in product defects or even scrap. Furthermore, conventional suction devices are relatively complex in structure.

[0003] Therefore, there is an urgent need for a suction device to stably suck the stainless steel sheet on the blanking die and place it on another stainless steel sheet for welding, so as to improve production efficiency, increase production stability and reduce costs. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a suction device to solve the problems in the prior art that the suction device cannot adjust the direction of placement of the stainless steel sheet and has a relatively complex structure.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model provides a material suction device, comprising a rotary drive mechanism, a lifting drive mechanism, a pitch-changing mechanism and a plurality of suction heads, wherein the plurality of suction heads are connected to the pitch-changing mechanism, the pitch-changing mechanism is used to adjust the spacing between the plurality of suction heads, the pitch-changing mechanism is connected to the lifting drive mechanism, the lifting drive mechanism is used to adjust the lifting height of the pitch-changing mechanism, the plurality of suction heads rise and fall synchronously following the pitch-changing mechanism, the lifting drive mechanism is connected to the rotary drive mechanism, the rotary drive mechanism is used to drive the lifting drive mechanism to rotate in the horizontal direction, the pitch-changing mechanism and the plurality of suction heads rotate synchronously following the lifting drive mechanism.

[0007] Furthermore, the distance changing mechanism includes a limit frame, a guide shaft, a slider, a slider rod and a first driver. The guide shaft is installed in the limit frame, and multiple sliders are installed on the guide shaft and can slide in the limit frame. The slider rod cooperates with the slider, and the first driver is used to drive the slider rod to slide with the slider, and the suction head is connected to the slider.

[0008] Furthermore, the limiting frame is provided with a plurality of limiting steps with gradually varying protruding heights, and the heights of the plurality of sliding blocks are gradually varying and match the limiting steps.

[0009] Furthermore, the slider rod is provided with a plurality of driving steps with a gradually changing protruding height, and each of the sliders is provided with a sliding groove that matches the slider rod, and the depth of the plurality of sliding grooves is gradually changing and matches the driving steps;

[0010] In the same direction, the protruding heights of the plurality of limiting steps gradually increase, the protruding heights of the plurality of driving steps gradually decrease, and the depths of the plurality of sliding grooves gradually decrease.

[0011] Furthermore, a connecting block is provided at one end of the slider rod connected to the first driver, and the connecting block is connected to the output shaft of the first driver and the slider closest to the connecting block.

[0012] Furthermore, a mounting plate is provided on the limiting frame, and the first driver is mounted on the mounting plate.

[0013] Furthermore, the limit frame is provided with a first avoidance groove cooperating with the slider rod, and the mounting plate is provided with a second avoidance groove cooperating with the slider rod, and the first avoidance groove and the second avoidance groove are respectively located on opposite sides of the slider rod.

[0014] Furthermore, a positioning piece is provided at the bottom of the limit frame, and the positioning piece is used to position the distance between the suction head and the workpiece.

[0015] Furthermore, the rotary drive mechanism includes a drive motor, a reducer, a coupling and a rotating shaft. The drive motor is connected to the reducer, the reducer is connected to the coupling, the coupling is connected to the rotating shaft, and the rotating shaft is connected to the lifting drive mechanism.

[0016] Furthermore, the lifting drive mechanism includes a connecting shaft, a fixed frame and a second driver, one end of the connecting shaft is connected to the rotation drive mechanism, the other end of the connecting shaft is connected to the fixed frame, the second driver is connected to the fixed frame and the pitch changing mechanism, and the second driver is used to drive the pitch changing mechanism to lift and lower.

[0017] The beneficial effects of the present invention are as follows: by arranging a rotary drive mechanism, a lifting drive mechanism and a pitch-changing mechanism, the direction and spacing of the suction heads can be adjusted with good precision, high efficiency and stable performance; and multiple suction heads are connected to the pitch-changing mechanism, the pitch-changing mechanism is connected to the lifting drive mechanism, and the lifting drive mechanism is connected to the rotary drive mechanism. Through such a connection method, multiple suction heads can be adjusted by using one lifting drive mechanism, one rotary drive mechanism and one pitch-changing mechanism, which greatly simplifies the structure of the suction device and makes the structure of the suction device more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the material suction device in the utility model.

[0019] Figure 2 It is a schematic diagram of the disassembled structure of the material suction device in the utility model.

[0020] Figure 3 This is one of the split structural diagrams of the pitch-changing mechanism in the utility model.

[0021] Figure 4 This is the second schematic diagram of the split structure of the pitch-changing mechanism in the utility model.

[0022] Figure 5 It is a structural diagram of the limiting frame in the utility model.

[0023] Figure 6 It is a structural diagram of the slider pull rod in the utility model.

[0024] Figure 7 This is a structural diagram of a slider pull rod driving multiple sliders to move closer to each other in the first embodiment of the present invention.

[0025] Figure 8 It is a schematic cross-sectional structural diagram of a slider pull rod driving multiple sliders to separate from each other in the first embodiment of the present invention.

[0026] In the figure: a rotary drive mechanism 10, a drive motor 11, a reducer 12, a coupling 13, a rotating shaft 14, a lifting drive mechanism 20, a connecting shaft 21, a fixing frame 22, a second driver 23, a connecting plate 24, a pitch changing mechanism 30, a limit frame 31, a fixing block 31a, a limit step 311, a mounting plate 312, a second avoidance groove 312a, a first avoidance groove 313, a positioning member 314, a guide shaft 32, a slider 33, a first slider 33a, a second slider 33b, a slide groove 331, an axis hole 332, a compression spring 333, a slider pull rod 34, a drive step 341, a connecting block 342, a first driver 35, a suction head 40, a mounting frame 50, a mounting longitudinal plate 51, and a mounting transverse plate 52. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation, structure, features and effects of the suction device proposed in the present invention as follows:

[0028] Figure 1 It is a structural diagram of the material suction device in the utility model. Figure 2 It is a schematic diagram of the disassembled structure of the material suction device in the utility model. Figure 3 This is one of the split structural diagrams of the pitch-changing mechanism in the utility model. Figure 4 This is the second schematic diagram of the split structure of the pitch-changing mechanism in the utility model. Figure 5 It is a structural diagram of the limiting frame in the utility model. Figure 6 It is a structural diagram of the slider pull rod in the utility model. Figure 7 This is a structural diagram of a slider pull rod driving multiple sliders to move closer to each other in the first embodiment of the present invention. Figure 8 It is a schematic cross-sectional structural diagram of a slider pull rod driving multiple sliders to separate from each other in the first embodiment of the present invention.

[0029] like Figures 1 to 8 As shown, the present invention provides a material suction device, including a rotary drive mechanism 10, a lifting drive mechanism 20, a pitch-changing mechanism 30 and a plurality of suction heads 40, wherein the plurality of suction heads 40 are all connected to the pitch-changing mechanism 30, and the pitch-changing mechanism 30 is used to adjust the spacing between the plurality of suction heads 40, and the pitch-changing mechanism 30 is connected to the lifting drive mechanism 20, and the lifting drive mechanism 20 is used to adjust the lifting height of the pitch-changing mechanism 30, and the plurality of suction heads 40 rise and fall synchronously with the pitch-changing mechanism 30, and the lifting drive mechanism 20 is connected to the rotary drive mechanism 10, and the rotary drive mechanism 10 is used to drive the lifting drive mechanism 20 to rotate in the horizontal direction, and the pitch-changing mechanism 30 and the plurality of suction heads 40 rotate synchronously with the lifting drive mechanism 20.

[0030] The utility model provides a rotary drive mechanism 10, a lifting drive mechanism 20 and a pitch-changing mechanism 30, so that the direction and spacing of the suction heads 40 can be adjusted with good precision, high efficiency and stable performance; and multiple suction heads 40 are connected to the pitch-changing mechanism 30, the pitch-changing mechanism 30 is connected to the lifting drive mechanism 20, and the lifting drive mechanism 20 is connected to the rotary drive mechanism 10. Through such a connection method, multiple suction heads 40 can be adjusted by using one lifting drive mechanism 10, one rotary drive mechanism 20 and one pitch-changing mechanism 30, which greatly simplifies the structure of the suction device and makes the structure of the suction device more compact.

[0031] In this embodiment, the pitch-changing mechanism 30 includes a limit frame 31, a guide shaft 32, a slider 33, a slider rod 34, and a first actuator 35. The guide shaft 32 is mounted within the limit frame 31. Multiple sliders 33 are mounted on the guide shaft 32 and are capable of sliding within the limit frame 31. The slider rod 34 cooperates with the sliders 33. The first actuator 35 is used to drive the slider rod 34 to slide with the sliders 33. The suction heads 40 are connected to the sliders 33. The limit frame 31 is a rectangular structure. There are two guide shafts 32 arranged parallel to each other. Each pitch-changing mechanism 30 has six sliders 33, each connected to six suction heads 40. The number of sliders 33 and suction heads 40 can be adjusted based on actual needs. Each slider 33 has two shaft holes 332, through which the slider 33 is mounted on the guide shaft 32 and is capable of sliding within the limit frame 31. The first driver 35 can be a telescopic cylinder, which drives the slider rod 34 to slide through the telescopic shaft of the telescopic cylinder, thereby driving the slider 33 to slide.

[0032] Furthermore, the limit frame 31 is provided with a plurality of limit steps 311 having a gradually varying height. The heights of the plurality of sliders 33 also vary and match the limit steps 311. Each limit step 311 has a different height, and each slider 33 has a different height. The plurality of sliders 33 cooperate with corresponding limit steps 311, thereby limiting the distance that the corresponding slider 33 can slide on the guide shaft 32. The spacing between adjacent limit steps 311 defines the spacing between corresponding adjacent sliders 33, thereby defining the spacing between adjacent suction heads 40. The spacing between adjacent limit steps 311 can be adjusted according to actual conditions; the spacing between any two adjacent limit steps 311 can be the same or different. The limit steps 311 are provided on opposite sides of the limit frame 31, protruding toward the sliders 33. The spacing between corresponding two limit steps 311 on opposite sides of the limit frame 31 is gradually varying.

[0033] In this embodiment, the slider rod 34 is provided with a plurality of driving steps 341 whose protruding heights show a gradual trend, and each slider 33 is provided with a sliding groove 331 that matches the slider rod 34. The depths of the plurality of sliding grooves 331 show a gradual trend and match the driving steps 341, and the plurality of sliders 33 respectively match the corresponding driving steps 341. In the same direction, the protruding heights of the plurality of limiting steps 311 gradually increase, the protruding heights of the plurality of driving steps 341 gradually decrease, and the depths of the plurality of sliding grooves 331 gradually decrease. As a result, the distance changing mechanism 30 only needs to be provided with one driver (the first driver 35) to drive the plurality of suction heads 40 to change the distance, which greatly simplifies the structure of the distance changing mechanism 30 and makes the structure of the distance changing mechanism 30 more compact; and the distance changing spacing between the sliders 33 is jointly defined by the limiting step 311 on the limiting frame 31 and the driving step 341 on the slider rod 34, so that the distance changing spacing is more precise and stable. For example, referring to Figures 3 to 8 The protruding heights of the plurality of limiting steps 311 gradually increase from left to right, the spacing between the corresponding two limiting steps 311 on opposite sides of the limiting frame 31 gradually decreases from left to right, the heights of the plurality of sliders 33 gradually decrease from left to right, the protruding heights of the plurality of driving steps 341 gradually decrease from left to right, and the depths of the plurality of chute grooves 331 gradually decrease from left to right. Figure 8 As shown, when multiple sliders 33 need to be separated from each other, the slider pull rod 34, when moving from left to right, pulls the sliders 33 arranged from right to left in sequence, so that the multiple sliders 33 are separated from each other and the maximum spacing between the multiple sliders 33 is achieved. Through the dual limitation of the driving step 341 and the limiting step 311, the position of each slider 33 can be accurately positioned, thereby improving the accuracy. Of course, in other embodiments, the slider pull rod 34 can also be a telescopic rod, one end of the telescopic rod is fixed to the limiting frame 31, and the other end is driven by the first driver 35. Each section of the telescopic rod corresponds to a fixed slider 33, and through the telescopic effect of the telescopic rod, the multiple sliders 33 slide. When the multiple sliders 33 are retracted, the telescopic rod can be retracted together to make the structure more compact.

[0034] In this embodiment, Figure 7 and Figure 8As shown, the slider 33 includes a first slider 33a and a plurality of second sliders 33b. The plurality of second sliders 33b and the first slider 33a are sequentially mounted on the guide shaft 32. The first slider 33a is disposed at one end of a slider rod 34 and is fixed to the slider rod 34 by screws. Optionally, the limit frame 31 is provided with a fixing block 31a, which is connected to the suction head 40 and has a slot 331 that mates with the slider rod 34. The plurality of second sliders 33b are disposed between the first slider 33a and the fixing block 31a. The fixing block 31a is disposed at the other end of the slider rod 34 and is fixed to the limit frame 31. The slider rod 34 does not need to drive the fixing block 31a to slide. For example, the first slider 33a, multiple second sliders 33b and the fixed block 31a are arranged in sequence from right to left, the first slider 33a is fixed to the rightmost end of the slider rod 34, the fixed block 31a is close to the leftmost end of the slider rod 34 and is fixed to the limit frame 31, and the slider rod 34 does not need to drive the fixed block 31a to slide.

[0035] Furthermore, a connecting block 342 is provided at one end of the slider rod 34 connected to the first driver 35, and the connecting block 342 is connected to the output shaft of the first driver 35 and the slider rod 34. Figure 7 As shown, when the multiple sliders 33 need to be retracted, the connecting block 342 moves the first slider 33a to the left. The sliders 33 then contact each other, driving the multiple second sliders 33b to move to the left and approach the fixed block 31a, thereby retracting the multiple sliders 33, restoring the multiple sliders 33, and achieving the minimum spacing between the multiple sliders 33. Of course, in other embodiments, the multiple sliders 33 can be connected by a restoring member, such as a spring or rubber band, so that when the first driver 35 is reset, the force of the restoring member can drive the multiple sliders 33 to retract.

[0036] Furthermore, the limit frame 31 is provided with a mounting plate 312, which is mounted on a side of the limit frame 31 and fixed to the limit frame 31. The first driver 35 is mounted on the mounting plate 312. The limit frame 31 is provided with a first avoidance groove 313 that cooperates with the slider rod 34, and the mounting plate 312 is provided with a second avoidance groove 312a that cooperates with the slider rod 34. The first avoidance groove 313 and the second avoidance groove 312a are respectively located on opposite sides of the slider rod 34. The first avoidance groove 313 and the second avoidance groove 312a can guide the movement of the slider rod 34 and further make the structure of the pitch-changing mechanism 30 more compact.

[0037] In this embodiment, a positioning member 314 is provided at the bottom of the limit frame 31. This member is used to determine the distance between the suction head 40 and the workpiece, preventing the suction head 40 from descending too far and damaging the workpiece. The end of the positioning member 314 can be made of rubber to provide a certain cushioning effect. In other embodiments, the positioning member 314 can also utilize a distance sensor to detect the distance between the suction head 40 and the workpiece, thereby controlling the descent height of the lifting drive mechanism 20.

[0038] In this embodiment, the suction head 40 is slidably connected to the slider 33 , and a compression spring 333 is provided between the suction head 40 and the slider 33 . When the suction head 40 contacts the workpiece, the compression spring 333 can play a certain buffering role.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, the rotary drive mechanism 10 includes a drive motor 11, a reducer 12, a coupling 13, and a rotating shaft 14. The drive motor 11 is connected to the reducer 12, the reducer 12 is connected to the coupling 13, the coupling 13 is connected to the rotating shaft 14, and the rotating shaft 14 is connected to the lifting drive mechanism 20. The drive motor 11 drives the reducer 12 to rotate, the reducer 12 is used to reduce the speed of the drive motor 11 and drive the coupling 13 to rotate, and the coupling 13 then rotates the rotating shaft 14.

[0040] In this embodiment, the lifting drive mechanism 20 includes a connecting shaft 21, a fixed frame 22, and a second driver 23. One end of the connecting shaft 21 is connected to the rotating shaft 14 of the rotation drive mechanism 10, and the other end of the connecting shaft 21 is connected to the fixed frame 22. The second driver 23 is connected to the fixed frame 22 and the pitch-changing mechanism 30. The second driver 23 is used to drive the pitch-changing mechanism 30 to move upward and downward. The second driver 23 can be a lifting cylinder, which drives the pitch-changing mechanism 30 upward and downward. A connecting plate 24 is provided between the second driver 23 and the pitch-changing mechanism 30, and the pitch-changing mechanism 30 is connected to the lifting shaft of the second driver 23 via the connecting plate 24.

[0041] In this embodiment, there are two variable-pitch mechanisms 30, each equipped with multiple suction heads 40, thereby enabling the suction of a larger number of workpieces. Optionally, there are two second actuators 23, mounted on opposite sides of the fixed frame 22, with one second actuator 23 used to drive one of the variable-pitch mechanisms 30 to raise or lower.

[0042] In this embodiment, the suction device also includes a mounting frame 50, which includes a mounting longitudinal plate 51 and a mounting transverse plate 52 connected to each other. The rotary drive mechanism 10 is mounted on the mounting transverse plate 52, and the suction device is mounted on the suction equipment through the mounting longitudinal plate 51.

[0043] In this document, directional terms such as "up," "down," "left," "right," "front," and "back" are defined based on the positions of structures in the accompanying drawings and their relative positions to each other, for the sake of clarity and convenience in presenting the technical solution. It should be understood that the use of these directional terms does not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second," etc., used herein, are used solely for distinctions and are not intended to limit quantity or order.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical content disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A suction device, characterized in that: The invention comprises a rotation drive mechanism (10), a lifting drive mechanism (20), a pitch-changing mechanism (30) and a plurality of suction heads (40), wherein the plurality of suction heads (40) are all connected to the pitch-changing mechanism (30), the pitch-changing mechanism (30) is used to adjust the spacing between the plurality of suction heads (40), the pitch-changing mechanism (30) is connected to the lifting drive mechanism (20), the lifting drive mechanism (20) is used to adjust the lifting height of the pitch-changing mechanism (30), the plurality of suction heads (40) rise and fall synchronously following the pitch-changing mechanism (30), the lifting drive mechanism (20) is connected to the rotation drive mechanism (10), the rotation drive mechanism (10) is used to drive the lifting drive mechanism (20) to rotate in the horizontal direction, the pitch-changing mechanism (30) and the plurality of suction heads (40) rotate synchronously following the lifting drive mechanism (20).

2. The material suction device according to claim 1, characterized in that: The variable distance mechanism (30) includes a limit frame (31), a guide shaft (32), a slider (33), a slider pull rod (34) and a first driver (35). The guide shaft (32) is installed in the limit frame (31). A plurality of sliders (33) are installed on the guide shaft (32) and can slide in the limit frame (31). The slider pull rod (34) cooperates with the slider (33). The first driver (35) is used to drive the slider pull rod (34) to slide with the slider (33). The suction head (40) is connected to the slider (33).

3. The material suction device according to claim 2, characterized in that: The limiting frame (31) is provided with a plurality of limiting steps (311) whose protruding heights are gradually changing, and the heights of the plurality of sliding blocks (33) are gradually changing and match the limiting steps (311).

4. The material suction device according to claim 3, characterized in that: The limiting frame (31) is a rectangular structure, and two opposite sides of the limiting frame (31) are provided with a plurality of limiting steps (311) protruding toward the sliding block (33).

5. The material suction device according to claim 2, characterized in that: One end of the slider rod (34) connected to the first driver (35) is provided with a connecting block (342), and the connecting block (342) is connected to the output shaft of the first driver (35) and one end of the slider rod (34).

6. The material suction device according to claim 2, characterized in that: The limit frame (31) is provided with a mounting plate (312), the mounting plate (312) is mounted on the side of the limit frame (31) and fixed to the limit frame (31), and the first driver (35) is mounted on the mounting plate (312).

7. The material suction device according to claim 6, characterized in that: The limiting frame (31) is provided with a first avoidance groove (313) cooperating with the slider rod (34), and the mounting plate (312) is provided with a second avoidance groove (312a) cooperating with the slider rod (34). The first avoidance groove (313) and the second avoidance groove (312a) are respectively located on opposite sides of the slider rod (34).

8. The material suction device according to claim 2, characterized in that: A positioning member (314) is provided at the bottom of the limiting frame (31), and the positioning member (314) is used to position the distance between the suction head (40) and the workpiece.

9. The material suction device according to any one of claims 1 to 8, characterized in that: The rotary drive mechanism (10) comprises a drive motor (11), a reducer (12), a coupling (13) and a rotating shaft (14); the drive motor (11) is connected to the reducer (12); the reducer (12) is connected to the coupling (13); the coupling (13) is connected to the rotating shaft (14); and the rotating shaft (14) is connected to the lifting drive mechanism (20).

10. The material suction device according to any one of claims 1 to 8, characterized in that: The lifting drive mechanism (20) comprises a connecting shaft (21), a fixing frame (22) and a second driver (23), one end of the connecting shaft (21) is connected to the rotation drive mechanism (10), the other end of the connecting shaft (21) is connected to the fixing frame (22), the second driver (23) is connected to the fixing frame (22) and the pitch changing mechanism (30), and the second driver (23) is used to drive the pitch changing mechanism (30) to move up and down.

Images