Part conveying equipment for numerical control machine tool assembly production line

Abstract

The invention relates to the technical field of part conveying equipment, and provides part conveying equipment for a numerical control machine tool assembly production line, which comprises a roller conveying line, a conveying boat unit, a non-return unit and a selection unit. The conveying boat unit is provided with a carrying plate with the height capable of being adjusted in a self-adaptive mode according to the weight of the workpieces, and layering of the workpieces with different weights is achieved through compression amount changes of bearing springs. The selecting unit is of an adjustable stop frame structure, the height of each layer of carrier plate is accurately matched through a fine adjustment assembly, and automatic sorting of workpieces is achieved. According to the equipment, a mechanical linkage type unloading mechanism is adopted, a pneumatic system is driven through cooperation of a wave abutting block and a conveying boat, and a stop frame is driven to complete automatic unloading. Weight sorting and automatic discharging of the workpieces are achieved, the sorting device has the advantages of being high in sorting precision, reliable in operation, high in adaptability and the like, the problems that traditional conveying equipment needs to be shut down for sorting, manual intervention and the like are effectively solved, and the sorting device is particularly suitable for meeting the requirement for automatic conveying of multi-variety and small-batch numerical control machine tool parts.

Description

Technical Field

[0001] This invention relates to the field of parts conveying equipment technology, specifically a parts conveying equipment for a CNC machine tool assembly line. Background Technology

[0002] In CNC machine tool assembly lines, the parts conveying process generally faces the challenge of sorting a wide variety of small-batch workpieces. Currently, mainstream conveying equipment suffers from three main technical bottlenecks: First, fixed-height mechanical baffle sorting mechanisms cannot adapt to the automatic sorting of different types of parts, forcing operators to frequently manually adjust the baffle positions; second, while electronic sorting systems using photoelectric sensors offer high precision, they are expensive and have strict requirements for the workshop environment, with reliability significantly reduced under conditions of oil contamination and vibration; third, traditional conveyor lines often require stopping the entire line during sorting, severely impacting production cycle time.

[0003] Therefore, it is necessary to develop a parts conveying device for CNC machine tool assembly lines to solve the above problems. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] A parts conveying device for a CNC machine tool assembly line includes a roller conveyor line. The roller conveyor line has a conveyor boat unit, which includes a conveyor boat and a load-bearing spring inside. A carrier block is fixedly connected to the upper end of the load-bearing spring, and a carrier plate is slidably connected to the carrier block. Tooling parts of different weights are placed on the carrier plate. The different weights of the tooling parts exert different pressures on the load-bearing spring, causing the carrier plate to be at different heights. A selection unit is provided on one side plate of the roller conveyor line. The selection unit includes a mountain-shaped frame, which is fixedly connected to stop frames of different heights via a fine-tuning component. The stop frames form guide grooves that can cut off the carrier plate. Multiple guide grooves have different heights, matching the height of the carrier plate after being compressed by different tooling parts, so that the guide grooves at the same position can select the same type of tooling part.

[0006] Preferably, the conveying boat is movably connected to the roller conveyor line via a check unit. The conveying boat is a hollow rectangle. The interior of the conveying boat is fixedly connected to the carrier block via the bearing spring. The upper end face of the carrier block is provided with a sliding groove, and the lower end face of the carrier plate is provided with a locking block. The locking block is slidably engaged in the sliding groove.

[0007] Preferably, the check unit includes a rack, which is fixedly connected to the inner side of the roller conveyor line, and gears are rotatably connected to both sides of the conveyor boat through one-way bearings, the gears meshing with the rack.

[0008] Preferably, the selection unit includes the mountain-shaped frame, which is movably connected to the side plate. The side plate is fixedly connected to one side of the roller conveyor line, and the mountain-shaped frame is fixedly connected to the fine-tuning component and the stop frame.

[0009] Preferably, the fine-tuning component includes a height adjustment frame, which is fixedly connected to both sides of the mountain-shaped frame. Slider blocks are fixedly connected to both ends of the stop frame. The sliders extend into the height adjustment frame and slide up and down within the height adjustment frame. The sliders and the height adjustment frame are fixed by fixing bolts to form a fixed height of the sliders and the stop frame.

[0010] Preferably, a discharge unit is provided on one side of the roller conveyor line. The discharge unit includes an air collection box, which is fixedly connected to one side of the roller conveyor line. A wave-shaped abutment block is slidably connected inside the air collection box through a return spring. An air collection pipe is fixedly connected to the rear end of the air collection box through an air guide pipe, and the air collection pipe is located at the lower end of the mountain-shaped frame.

[0011] Preferably, the wave abutment block has arc-shaped wave crests of different heights on the side facing the roller conveyor line, and the side wall of the conveyor boat is provided with abutment wheels, and the wave abutment block and the abutment wheels cooperate.

[0012] Preferably, a lifting rod is slidably connected inside the gas collecting pipe, the connection between the gas collecting pipe and the air guiding pipe is located below the lifting rod, and the upper end of the lifting rod is hinged to the mountain-shaped frame.

[0013] Preferably, a guide rail is provided on one side of the side plate, the mountain-shaped frame is slidably connected to the guide rail via a sliding head, and a guide groove is provided below the guide rail, the guide groove being fixedly connected to the side plate.

[0014] Preferably, a counterweight is fixedly connected to the end of the carrier plate away from the side plate.

[0015] The beneficial effects of this invention are: The CNC machine tool parts conveying equipment provided by this invention achieves automated sorting and conveying functions through the coordinated operation of mechanical structures. It primarily utilizes the self-weight of the parts to automatically adjust tooling parts of different weights to the corresponding height, precisely matching them with a preset stop frame for automatic sorting. Simultaneously, this equipment employs a combined mechanical and pneumatic unloading method. The coordinated action of the wave-shaped contact block and the conveyor boat drives the stop frame to tilt and unload the parts. The entire process requires no additional power source, making it more economical and highly maintainable. The stop frame design supports rapid height adjustment, flexibly adapting to the conveying needs of parts of different specifications. This significantly improves the automation level of the assembly line, ensuring sorting accuracy, increasing conveying efficiency, and reducing manual labor intensity, making it particularly suitable for automated conveying scenarios involving a wide variety of parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] in: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A schematic diagram of the structure of the roller conveyor line and guide trough; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a structural schematic diagram of the conveyor boat unit and the roller conveyor line; Figure 6 for Figure 5 Enlarged view of point C in the middle; Figure 7 This is a schematic diagram of the unloading unit. Figure 8 for Figure 7 Enlarged view of point D; Figure 9 for Figure 7 Enlarged view of point E in the middle; In the picture: 1. Roller conveyor line; 2. Conveyor boat unit; 21. Conveyor boat; 22. Carrier block; 23. Bearing spring; 24. Carrier plate; 25. Clamping block; 26. Slide groove; 3. Check valve unit; 31. Rack; 32. Gear; 4. Select Unit; 41. Mountain-shaped Frame; 43. Cut-off Frame; 44. Fine-tuning Component; 441. Slider; 442. Height Adjustment Frame; 443. Fixing Bolt; 45. Side Plate; 5. Unloading unit; 51. Air collection box; 52. Corrugated abutment block; 53. Return spring; 54. Air guide pipe; 55. Air collection pipe; 56. Lifting rod; 57. Sliding head; 58. Guide rail; 59. Guide groove; 510. Counterweight block; 99. Tooling parts. Detailed Implementation

[0018] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0019] Example: like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a parts conveying device for a CNC machine tool assembly line includes a roller conveyor line 1, a conveyor boat unit 2 on the roller conveyor line 1, a conveyor boat unit 2 including a conveyor boat 21, a bearing spring 23 inside the conveyor boat 21, a carrier block 22 fixedly connected to the upper end of the bearing spring 23, a carrier plate 24 slidably connected to the carrier block 22, and tooling parts 99 of different weights placed on the carrier plate 24. The tooling parts 99 of different weights exert different pressures on the bearing spring 23, so that the carrier plate 24 is located at different heights. A selection unit 4 is provided on a side plate 45 on one side of the roller conveyor line 1. The selection unit 4 includes a mountain-shaped frame 41, and the mountain-shaped frame 41 is fixedly connected to a stop frame 43 of different heights through a fine-tuning component 44. The stop frame 43 forms a guide groove that can cut the carrier plate 24. The heights of the multiple guide grooves are different and match the height of the carrier plate 24 after being squeezed by different tooling parts 99, so that the guide groove at the same position selects the same type of tooling part 99.

[0020] The conveyor boat 21 is movably connected to the roller conveyor line 1 via the check unit 3. The conveyor boat 21 is a hollow rectangle. The interior of the conveyor boat 21 is fixedly connected to the carrier block 22 via the bearing spring 23. The upper end face of the carrier block 22 is provided with a groove 26, and the lower end face of the carrier plate 24 is provided with a locking block 25. The locking block 25 is slidably engaged in the groove 26.

[0021] The check unit 3 includes a rack 31, which is fixedly connected to the inner side of the roller conveyor line 1. The two sides of the conveyor boat 21 are rotatably connected to gears 32 through one-way bearings. The gears 32 and the rack 31 mesh with each other. The one-way bearings make the gears 32 rotate only in one direction, so the conveyor boat 21 can only move forward.

[0022] The selection unit 4 includes a mountain-shaped frame 41, which is movably connected to a side plate 45. The side plate 45 is fixedly connected to one side of the roller conveyor line 1. The mountain-shaped frame 41 is fixedly connected to a fine-tuning component 44 and a stop frame 43.

[0023] The fine-tuning component 44 includes a height adjustment frame 442, which is fixedly connected to both sides of the mountain-shaped frame 41. Slider 441 is fixedly connected to both ends of the stop frame 43. The slider 441 extends into the height adjustment frame 442 and slides up and down within the height adjustment frame 442. The slider 441 and the height adjustment frame 442 are fixed by fixing bolts 443, thus fixing the height of the slider 441 and the stop frame 43. By loosening the fixing bolts 443, the slider 441 can slide up and down in the height adjustment frame 442, thereby driving the stop frame 43 to slide up and down. After tightening the fixing bolts 443, the stop frame 43 can be fixed.

[0024] In this embodiment, the weight of each tooling part 99 needs to be measured first. Since the weight of each tooling part 99 is different and varies significantly, the tooling part 99 is first placed on the carrier plate 24. At this time, the carrier plate 24 is compressed by the bearing spring 23 and moves downwards. The height of the carrier plate 24 at this point is recorded. Then, the height of the stop frame 43 is adjusted using the fine-tuning component 44 so that the guide groove formed by the stop frame 43 and the carrier plate 24 are at the same height. Thus, when the carrier plate 24 passes through the guide groove, it can be intercepted by the guide groove, thereby stopping the tooling part 99 at that position. Similarly, matching guide grooves can be set for multiple different types of tooling parts 99 so that the corresponding tooling part 99 is intercepted by the guide groove at the corresponding position. (In machine tool assembly operation, to improve efficiency, each assembler only assembles one part, and each person is at a different workstation. Therefore, this device can automatically bring the corresponding part to the corresponding workstation, improving assembly efficiency.)

[0025] After the pre-work preparation is completed, different tooling parts 99 are placed on the carrier plate 24. At this time, the carrier plate 24 compresses the bearing spring 23, and the carrier plate 24 drives the tooling parts 99 to descend. At the same time, the roller conveyor line 1 continues to drive the conveyor boat 21, the carrier plate 24 and the tooling parts 99 to move. Then the carrier plate 24 enters the guide groove formed by the stop frame 43, and the other end of the guide groove is closed. So when the carrier plate 24 continues to be conveyed, the other end of the guide groove will cause the carrier plate 24 to no longer follow the roller conveyor line 1. At this time, the relative displacement of the carrier plate 24, the tooling parts 99 and the carrier block 22 occurs. The carrier block 22 and the conveyor boat 21 will continue to move with the roller conveyor line 1. Finally, the carrier plate 24 drives the tooling parts 99 and the carrier block 22 to separate, so that the carrier plate 24 drives the tooling parts 99 to stop on the stop frame 43, completing the corresponding tooling parts 99 cutting.

[0026] It is important to note that this device utilizes the varying weights of different tooling parts 99 to cause different degrees of compression in the load-bearing springs 23, thereby resulting in varying heights of the carrier plate 24. Simultaneously, the stop frames 43 at different workstations are pre-adjusted to the height of the carrier plate 24 via the fine-tuning component 44. This ensures that the passing carrier plate 24 pulls the required tooling part 99 to the stop frame 43 at that workstation, facilitating direct access by assembly workers. For example, a lighter tooling part 99 compresses the load-bearing spring 23 less, resulting in a higher carrier plate 24. In this case, the carrier plate 24 will not be stopped by a lower-height stop frame 43, but only by a stop frame 43 of the same height. Furthermore, because different parts are transported on the same conveyor line during assembly, and different parts are assembled at different speeds, traditional conveyor lines require frequent pauses, reducing assembly efficiency. Without pausing the conveyor line, parts would accumulate.

[0027] like Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, a discharge unit 5 is provided on one side of the roller conveyor line 1. The discharge unit 5 includes an air collection box 51, which is fixedly connected to one side of the roller conveyor line 1. A wave-shaped abutment block 52 is slidably connected inside the air collection box 51 through a return spring 53. An air collection pipe 55 is fixedly connected to the rear end of the air collection box 51 through an air guide pipe 54. The air collection pipe 55 is located at the lower end of the mountain-shaped frame 41.

[0028] The wave-shaped abutment block 52 has arc-shaped crests of different heights on the side facing the roller conveyor line 1, and the side wall of the conveyor boat 21 is provided with abutment wheels. The wave-shaped abutment block 52 and the abutment wheels cooperate.

[0029] A lifting rod 56 is slidably connected inside the air collecting pipe 55. The connection between the air collecting pipe 55 and the air guiding pipe 54 is located below the lifting rod 56. The upper end of the lifting rod 56 is hinged to the mountain-shaped frame 41.

[0030] A guide rail 58 is provided on one side of the side plate 45. The mountain-shaped frame 41 is slidably connected to the guide rail 58 through the sliding head 57. A guide groove 59 is provided below the guide rail 58, and the guide groove 59 is fixedly connected to the side plate 45.

[0031] A counterweight 510 is fixedly connected to the end of the carrier plate 24 away from the side plate 45; the counterweight 510 facilitates the flipping of the carrier plate 24 to detach it from the stop frame 43.

[0032] In this embodiment, after the carrier plate 24 moves the tooling part 99 to stop in the stop frame 43, the conveyor boat 21 continues to move the carrier block 22. When the conveyor boat 21 moves, it causes the side abutment wheel to contact the wave abutment block 52, so that the wave abutment block 52 squeezes the air in the air collection box 51 and injects it into the air collection pipe 55 through the air guide pipe 54. This causes the lifting rod 56 to move upward and push the mountain-shaped frame 41. After the mountain-shaped frame 41 is pushed, the sliding head 57 slides in the guide rail 58, causing the mountain-shaped frame 41 to deflect at an angle, thereby causing the carrier plate 24 and the tooling part 99 to separate from the stop frame 43. The carrier plate 24 and the tooling part 99 slide to the side of the assembly personnel through the guide groove 59 for the assembly personnel to use. Subsequently, after the abutting wheel on the conveyor boat 21 leaves the wave abutting block 52, the return spring 53 extends and drives the wave abutting block 52 to return to its original position. At the same time, the air guide pipe 54 draws the air out of the air collection pipe 55. At this time, the lifting rod 56 descends and drives the empty stop frame 43 to return to the preset height, ready to cut the next carrier plate 24.

[0033] It should be noted that because the contact surfaces of the wave abutment block 52 and the abutment wheel are arc-shaped wave crests of different heights, when the abutment wheel and the wave abutment block 52 come into contact, the wave abutment block 52 will slide back and forth repeatedly in the air collection box 51, causing the gas in the air collection box 51 to repeatedly enter and exit the air collection pipe 55. This causes the lifting rod 56 to slide up and down repeatedly, resulting in the mountain-shaped frame 41 driving the stop frame 43 to deflect repeatedly. This causes the stop frame 43 to drive the carrier plate 24 and the tooling part 99 to deflect back and forth, preventing the carrier plate 24 and the tooling part 99 from not detaching from the stop frame 43.

[0034] The workflow is as follows: First, different tooling parts 99 are placed on the carrier plate 24. At this time, the carrier plate 24 compresses the bearing spring 23, and the carrier plate 24 drives the tooling parts 99 to descend. At the same time, the roller conveyor line 1 continues to drive the conveyor boat 21, the carrier plate 24 and the tooling parts 99 to move. Then, the carrier plate 24 enters the guide groove formed by the stop frame 43, and the other end of the guide groove is closed. So when the carrier plate 24 continues to be conveyed, the other end of the guide groove will cause the carrier plate 24 to no longer follow the roller conveyor line 1. At this time, the relative displacement of the carrier plate 24, the tooling parts 99 and the carrier block 22 occurs. The carrier block 22 and the conveyor boat 21 will continue to move with the roller conveyor line 1. Finally, the carrier plate 24 drives the tooling parts 99 and the carrier block 22 to separate, so that the carrier plate 24 drives the tooling parts 99 to stop on the stop frame 43, completing the cutting of the corresponding tooling parts 99. After the carrier plate 24 moves the tooling part 99 to a stop frame 43, the conveyor boat 21 continues to move the carrier block 22. When the conveyor boat 21 moves, it causes the side abutment wheel to contact the wave abutment block 52, which causes the wave abutment block 52 to squeeze the air in the air collection box 51 and inject it into the air collection pipe 55 through the air guide pipe 54. This causes the lifting rod 56 to move upward and push the mountain-shaped frame 41. After the mountain-shaped frame 41 is pushed, the sliding head 57 slides in the guide rail 58, causing the mountain-shaped frame 41 to deflect at an angle, thereby causing the carrier plate 24 and the tooling part 99 to separate from the stop frame 43. The carrier plate 24 and the tooling part 99 slide through the guide groove 59 to the side of the assembly personnel for use by the assembly personnel. Subsequently, after the abutting wheel on the conveyor boat 21 leaves the wave abutting block 52, the return spring 53 extends and drives the wave abutting block 52 to return to its original position. At the same time, the air guide pipe 54 draws the air out of the air collection pipe 55. At this time, the lifting rod 56 descends and drives the empty stop frame 43 to return to the preset height, ready to cut the next carrier plate 24.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A parts conveying device for a CNC machine tool assembly line, comprising a roller conveyor line (1), characterized in that, The roller conveyor line (1) is provided with a conveyor boat unit (2), which includes a conveyor boat (21). A bearing spring (23) is provided inside the conveyor boat (21). A carrier block (22) is fixedly connected to the upper end of the bearing spring (23). A carrier plate (24) is slidably connected to the carrier block (22). Tooling parts (99) of different weights are placed on the carrier plate (24). The tooling parts (99) of different weights exert different pressures on the bearing spring (23), so that the carrier plate (24) is located at different heights. A selection unit (4) is provided on a side plate (45) on one side of line (1). The selection unit (4) includes a mountain-shaped frame (41). The mountain-shaped frame (41) is fixedly connected to a stop frame (43) of different heights through a fine-tuning component (44). The stop frame (43) forms a guide groove that can cut off the carrier plate (24). The heights of the multiple guide grooves are different and match the heights of the carrier plate (24) after being squeezed by different tooling parts (99). Thus, the guide groove at the same position selects the same type of tooling part (99).

2. The parts conveying equipment for a CNC machine tool assembly line as described in claim 1, characterized in that, The conveying boat (21) is movably connected to the roller conveyor line (1) through the check unit (3). The conveying boat (21) is a hollow rectangle. The interior of the conveying boat (21) is fixedly connected to the carrier block (22) through the bearing spring (23). The upper end face of the carrier block (22) is provided with a sliding groove (26). The lower end face of the carrier plate (24) is provided with a locking block (25). The locking block (25) is slidably engaged in the sliding groove (26).

3. The parts conveying equipment for a CNC machine tool assembly line as described in claim 2, characterized in that, The check unit (3) includes a rack (31), which is fixedly connected to the inner side of the roller conveyor line (1). The two sides of the conveyor boat (21) are rotatably connected to gears (32) through one-way bearings, and the gears (32) and the rack (31) mesh.

4. The parts conveying equipment for a CNC machine tool assembly line as described in claim 1, characterized in that, The selection unit (4) includes the mountain-shaped frame (41), which is movably connected to the side plate (45). The side plate (45) is fixedly connected to one side of the roller conveyor line (1). The mountain-shaped frame (41) is fixedly connected to the fine-tuning component (44) and the stop frame (43).

5. The parts conveying equipment for a CNC machine tool assembly line as described in claim 4, characterized in that, The fine-tuning component (44) includes a height adjustment frame (442), which is fixedly connected to both sides of the mountain-shaped frame (41). The two ends of the stop frame (43) are fixedly connected to sliders (441), which extend into the height adjustment frame (442). The sliders (441) slide up and down in the height adjustment frame (442). The sliders (441) and the height adjustment frame (442) are fixed by fixing bolts (443) to form a fixed height of the sliders (441) and the stop frame (43).

6. The parts conveying equipment for a CNC machine tool assembly line as described in claim 1, characterized in that, A discharge unit (5) is provided on one side of the roller conveyor line (1). The discharge unit (5) includes an air collection box (51). The air collection box (51) is fixedly connected to one side of the roller conveyor line (1). A wave abutment block (52) is slidably connected inside the air collection box (51) through a return spring (53). An air collection pipe (55) is fixedly connected to the rear end of the air collection box (51) through an air guide pipe (54). The air collection pipe (55) is located at the lower end of the mountain-shaped frame (41).

7. The parts conveying equipment for a CNC machine tool assembly line as described in claim 6, characterized in that, The wave abutment block (52) has arc-shaped wave peaks of different heights on the side facing the roller conveyor line (1), and the conveyor boat (21) has abutment wheels on its side wall. The wave abutment block (52) and the abutment wheels cooperate with each other.

8. The parts conveying equipment for a CNC machine tool assembly line as described in claim 6, characterized in that, A lifting rod (56) is slidably connected inside the gas collecting pipe (55). The connection between the gas collecting pipe (55) and the air guiding pipe (54) is located below the lifting rod (56). The upper end of the lifting rod (56) is hinged to the mountain-shaped frame (41).

9. The parts conveying equipment for a CNC machine tool assembly line as described in claim 8, characterized in that, A guide rail (58) is provided on one side of the side plate (45). The mountain-shaped frame (41) is slidably connected to the guide rail (58) through a sliding head (57). A guide groove (59) is provided below the guide rail (58). The guide groove (59) is fixedly connected to the side plate (45).

10. The parts conveying equipment for a CNC machine tool assembly line as described in claim 9, characterized in that, A counterweight (510) is fixedly connected to one end of the carrier plate (24) away from the side plate (45).

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