Automatic clamping mechanism suitable for trays with different widths and sizes

Abstract

The utility model discloses an automatic clamping mechanism suitable for trays with different widths and sizes. The automatic clamping mechanism comprises a vertical plate, a vertically-arranged linear lifting module is arranged on the right side of the vertical plate, the linear lifting module is connected with a lifting frame, two belt conveying lines for left and right conveying are arranged on the lifting frame, and a clamping adjusting structure is arranged at the upper end of the vertical plate. The clamping adjusting structure comprises mounting plates, a forward and reverse thread ball screw is connected between the two mounting plates, the forward and reverse thread ball screw is connected with a servo motor, two nuts of the forward and reverse thread ball screw are respectively connected with an adjusting plate, and the opposite inner sides of the two adjusting plates are respectively connected with a baffle; the left ends of the two adjusting plates are each connected with a second linear guide rail arranged front and back, and in-place sensors are arranged on the two adjusting plates. The tray clamping device has the advantages that trays on a belt conveying line can be clamped and fixed, the positions of the trays can be adjusted, it is guaranteed that the positions of the trays are accurate, and the tray clamping device can adapt to clamping adjustment of the trays with different widths and sizes.

Description

Technical Field

[0001] This utility model relates to the field of automated machinery technology, specifically to an automatic clamping mechanism applicable to pallets of different widths. Background Technology

[0002] A tray, also known as a pallet, is a material tray that carries workpieces and is an important tool on the production line. It ensures stable workpiece transport and precise positioning, thereby improving production efficiency.

[0003] In automated production lines, when transporting workpieces by pallet, it is often necessary to fix the pallet in a set position before loading the workpiece into the pallet. In order to ensure the accurate positioning of the workpiece, the position of the pallet must be fixed. On automated conveyor lines, the pallet is often fixed by multiple limit components. However, the multiple limit components have poor consistency, poor pallet clamping and positioning accuracy, and cannot adapt to the clamping and positioning of pallets of different widths. Utility Model Content

[0004] The purpose of this invention is to provide an automatic clamping mechanism applicable to pallets of different widths, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic clamping mechanism applicable to pallets of different widths, including a vertical plate, a vertically arranged linear lifting module on the right side of the vertical plate, the linear lifting module being connected to a lifting frame, two belt conveyor lines for left and right transmission on the lifting frame, the two belt conveyor lines being arranged symmetrically front and back, and a clamping adjustment structure at the upper end of the vertical plate;

[0006] The clamping and adjusting structure includes mounting plates, two mounting plates are horizontally arranged front and back, and a positive and negative toothed ball screw is connected between the two mounting plates. The positive and negative toothed ball screw is connected to a servo motor. The two nuts of the positive and negative toothed ball screw are respectively connected to an adjusting plate. The two adjusting plates are arranged left and right and are located on the front and back sides of the two belt conveyors. A baffle is connected to the opposite inner side of the two adjusting plates. A second linear guide rail arranged front and back is connected to the left end of each of the two adjusting plates. A position sensor is provided on the two adjusting plates.

[0007] Further preferably, the baffle includes a connecting part and a stop edge. The connecting part is horizontally arranged and connected to the adjusting plate, and the stop edge is connected to the connecting part. Both the upper and lower sides of the stop edge are bent towards the connecting part. The baffle is used to clamp, adjust, and fix the tray, which is achieved through the stop edge. The connecting part is used to connect with the adjusting plate to realize the installation of the baffle.

[0008] Further preferably, the connecting part is provided with a number of waist holes arranged in the front and back for connecting the connecting part and the adjusting plate, and the adjustment is convenient and the installation position is adjustable; the lower side of the baffle is provided with an avoidance groove in the middle, which plays a role in avoiding obstacles.

[0009] Further preferably, the belt conveyor line includes two pairs of support plates arranged on the left and right, with a roller connected between each pair of support plates. One of the two rollers is connected to a stepper motor, and a conveyor belt is connected between the two rollers. The support plates are used for mounting the rollers, and the stepper motors are used to drive the rollers to rotate, thereby driving the conveyor belt to achieve the transmission function.

[0010] Further preferably, a guide bar is provided in the middle of the back of the conveyor belt, a support plate is provided below the conveyor belt, the support plate is provided with anti-deviation grooves arranged on the left and right, and a guide groove is provided around the center of the roller. The guide bar, the anti-deviation grooves on the support plate, and the guide groove in the middle of the roller cooperate to effectively prevent the conveyor belt from deviating to the sides.

[0011] In a further preferred embodiment, the lifting frame is provided with a limiting component at the end away from the upright plate. The limiting component is located between two belt conveyor lines and is used to restrict the pallets conveyed to the belt conveyor lines to ensure that only one pallet is used on the belt conveyor line at a time.

[0012] In a further preferred embodiment, the limiting component includes a lifting cylinder, the upper piston rod end of which is connected to a limiting plate. The lifting cylinder can drive the limiting plate to rise and fall, thereby achieving the limiting function. A reinforcing plate is provided on the side of the lifting cylinder to ensure that the lifting cylinder is installed securely.

[0013] Further preferably, one of the two second linear guides is connected to a sensing sensor on one side for controlling the opening and closing motion of the forward and reverse toothed ball screw.

[0014] In a further preferred embodiment, at least one vertically arranged first linear guide rail is provided on the right side of the upright plate, and the slider of the first linear guide rail is connected to the lifting frame to ensure that the lifting frame rises and falls smoothly and steadily.

[0015] Beneficial effects: This utility model's automatic clamping mechanism, applicable to pallets of different widths, can clamp pallets on a belt conveyor line through the clamping adjustment structure, adjusting the pallet position to ensure accurate positioning and fixing the pallet position for precise loading. It can adapt to the clamping and adjustment of pallets of different widths, and the positive and negative toothed ball screws ensure synchronous operation of the two baffles, resulting in high consistency. The belt conveyor line transports the pallets, preventing belt skewing caused by pallet clamping and adjustment, ensuring accurate and stable pallet transport. This automatic clamping mechanism can clamp, adjust, and fix various pallet models within a certain width range, adapting to the current diversity of product information and meeting the needs of customers for future upgrades and modifications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the axonal structure of the automatic clamping mechanism for pallets of different widths disclosed in the embodiments of this utility model.

[0017] Figure 2 This is a front view structural schematic diagram of an automatic clamping mechanism for pallets of different widths disclosed in an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the belt conveyor line disclosed in the embodiments of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping and adjusting structure disclosed in the embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the baffle disclosed in the embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the limiting component disclosed in the embodiments of this utility model;

[0022] Figure 7 This is a schematic diagram of the state structure of the automatic clamping mechanism when clamping a tray, as disclosed in an embodiment of the present utility model.

[0023] Reference numerals: 1-Upright plate, 2-Linear lifting module, 3-First linear guide rail, 4-Lifting frame, 5-Belt conveyor line, 51-Support plate, 52-Roller, 53-Stepper motor, 54-Conveyor belt, 55-Guide bar, 56-Pattern, 6-Clamping and adjusting structure, 61-Mounting plate, 62-Positive and negative toothed ball screw, 63-Servo motor, 64-Adjusting plate, 65-Baffle, 651-Connecting part, 652-Side guard, 653-Waist hole, 654-Allowing groove, 66-Second linear guide rail, 67-Position sensor, 68-Induction sensor, 7-Limit component, 71-Lifting cylinder, 72-Limit plate, 73-Reinforcing plate, 8-Pattern. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figure 1-7 As shown, an automatic clamping mechanism applicable to pallets of different widths is disclosed. This mechanism is adaptable to various pallet widths, accommodating diverse product information and meeting customer needs for future lifting and modification functions. The automatic clamping mechanism includes a vertical plate 1. A vertically arranged linear lifting module 2 is located on the right side of the vertical plate 1. The linear lifting module 2 is connected to a lifting frame 4, which has two belt conveyors 5 for left-right transport. The two belt conveyors 5 are symmetrically arranged front and back. A clamping adjustment structure 6 is located at the upper end of the vertical plate 1. The vertical plate 1 is used to mount the linear lifting module 2 and the clamping adjustment structure 6. The linear lifting module 2 drives the lifting frame 4 and the two belt conveyors 5 to rise and fall. The belt conveyors 5 transport pallets 8, enabling automatic loading of pallets 8. The clamping and adjustment structure 6 ensures that the pallets 8 are adjusted to a set position for subsequent loading. Finally, the linear lifting module 2 lowers the pallets 8 to the set position and then transports them to the next workstation via the belt conveyors 5.

[0026] In this application, the clamping and adjusting structure 6 includes a mounting plate 61, a forward and reverse threaded ball screw 62, a servo motor 63, an adjusting plate 64, a baffle 65, and a second linear guide rail 66. The two mounting plates 61 are horizontally arranged front and back for mounting the forward and reverse threaded ball screw 62. The forward and reverse threaded ball screw 62 is provided with a forward threaded nut and a reverse threaded nut, and each nut is connected to an adjusting plate 64. The forward and reverse threaded ball screw 62 is connected to the servo motor 63. The two adjusting plates 64 of the forward and reverse threaded ball screw 62 are arranged left and right and are located on the front and back sides of the two belt conveyors 5. A baffle 65 is connected to the inner side of each of the two adjusting plates 64. The servo motor 63 can drive the forward and reverse threaded ball screw 62 to rotate, causing the two nuts on it to rotate in opposite directions, causing the two adjusting plates 64 to move closer or further away from each other, and in turn causing the two baffles 65 to move closer or further away from each other, thereby achieving the clamping of trays 8 of different widths. Two second linear guide rails 66 are respectively disposed at the left ends of the two adjusting plates 64. Both second linear guide rails 66 are configured to slide back and forth, providing support and limiting for the adjusting plates 64, ensuring smooth and stable forward and backward movement of the adjusting plates 64. Position sensors 67 are provided on the two adjusting plates 64 to detect the position of the pallet 8 on the belt conveyor line 5, ensuring accurate positioning of the pallet 8.

[0027] In this application, the baffle 65 includes a connecting part 651 and a retaining edge 652. The connecting part 651 is horizontally arranged and used to connect with the adjusting plate 64 to realize the installation of the baffle 65. The retaining edge 652 is connected to the connecting part 651. Both the upper and lower sides of the retaining edge 652 are bent towards the connecting part 651. The two retaining edges 652 can clamp, position and fix the pallet 8 on the belt conveyor line 5, ensuring that the pallet 8 is accurately placed and facilitating the loading of materials onto the pallet 8.

[0028] Based on the above scheme, the connecting part 651 is provided with a number of front and rear-mounted waist holes 653 for adjusting the installation position of the baffle 65 relative to the adjusting plate 64, ensuring the accurate installation position of the baffle 65; at the same time, the maximum distance between the two baffles 65 can be adjusted through the waist holes 653, expanding the clamping size range of the clamping adjustment structure. The lower side of the retaining edge 652 is provided with a relief groove 654 in the middle for limiting the installation of other components.

[0029] In this application, the belt conveyor line 5 includes support plates 51, rollers 52, stepper motors 53, and a conveyor belt 54. Two pairs of support plates 51 support two rollers 52, which are used to mount the conveyor belt 54. One of the rollers 52 is connected to a stepper motor 53. When the stepper motor 53 drives the roller 52 to rotate, it can drive the conveyor belt 54 to rotate, thus realizing the transmission function of the conveyor belt 54. The stepper motor 53 enables precise transmission of the conveyor belt 54.

[0030] Based on the above scheme, a guide bar 55 is provided in the middle of the back of the conveyor belt 54, and a support plate 56 is provided below the conveyor belt 54. The support plate 56 has anti-deviation grooves arranged on the left and right sides, and a guide groove is provided around the center of the roller 52. The main function of the guide bar 55 is to prevent the conveyor belt 54 from deviating during the conveying process. The anti-deviation grooves on the support plate 56 and the guide groove in the middle of the roller 52 limit the support plate 56 below the conveyor belt 54. When the conveyor belt 54 is running, the guide bar 55 will move along the anti-deviation grooves on the support plate 56 and the guide grooves on the roller 52, thereby effectively reducing the possibility of the conveyor belt 54 deviating from the track. It can also prevent the conveyor belt 54 from deviating when the clamping and adjusting structure 6 adjusts the position of the pallet 8, thereby reducing the wear and jamming of the conveyor belt 54, extending the service life of the belt conveyor line 5, and reducing the failure rate in the production process.

[0031] In this application, a limiting component 7 is provided at the end of the lifting frame 4 furthest from the upright plate 1. The limiting component 7 is located between the two belt conveyors 5, and it limits the pallet 8 to ensure that only one pallet 8 is conveyed onto the belt conveyor 5 at a time. After the external transmission mechanism conveys a pallet 8 onto the belt conveyor 5, the limiting component 7 is activated to prevent the next pallet 8 from being conveyed onto the belt conveyor 5 as well.

[0032] Based on the above scheme, the limiting component 7 includes a lifting cylinder 71. The upper piston rod end of the lifting cylinder 71 is connected to a limiting plate 72. The lifting cylinder 71 can drive the limiting plate 72 to rise and fall. When the limiting plate 72 rises, it can prevent the next pallet 8 from being transferred to the belt conveyor 5. When the limiting plate 72 falls, the external transmission mechanism can transfer the next pallet 8 to the belt conveyor 5. A reinforcing plate 73 is provided on the side of the lifting cylinder 71 to enhance the installation stability of the lifting cylinder 71.

[0033] In the solution of this application, a sensor 68 is connected to one side of one of the two second linear guides 66 to sense the opening and closing of the adjustment plate 64, so as to realize the precise control of the transmission of the servo motor 63 to the forward and reverse tooth ball screw 62 and ensure the overall safe operation of the clamping adjustment structure 6.

[0034] In this application, at least one vertically arranged first linear guide rail 3 is provided on the right side of the upright plate 1. The slider of the first linear guide rail 3 is connected to the lifting frame 4 for guiding the lifting frame 4 and ensuring the smooth lifting of the lifting frame 4. In this solution, two first linear guide rails 3 are used, which are respectively arranged on the front and rear sides of the linear lifting module 2 to provide front and rear support and guidance for the lifting frame 4, ensuring the smooth and stable lifting of the lifting frame 4.

[0035] In this application, the working process of the automatic clamping mechanism is as follows: the linear lifting module 2 conveys the belt conveyor 5 to the position of the corresponding clamping adjustment structure 6, and then the external transmission mechanism conveys the pallet 8 onto the belt conveyor 5; the belt conveyor 5 starts, the stepper motor 53 drives the roller 52 to rotate the conveyor belt 54, and transmits the pallet 8 to the left; after the position sensor 67 of the clamping adjustment structure 6 senses that the pallet 8 has been conveyed to the set position, the belt conveyor 5 stops; then the clamping adjustment structure 6 moves, the servo motor 63 drives the positive and negative toothed ball screw 62 to rotate, and through the nut on the positive and negative toothed ball screw 62, drives the two adjusting plates 64 to move towards each other. When the two baffles 65 clamp the pallet 8, they stop, and the position of the pallet 8 is fixed. Then the pallet 8 is loaded; after the loading is completed, the clamping adjustment structure 6 resets, the linear lifting module 2 drives the lifting frame 4 to descend, and the belt conveyor 5 is lowered to the set position. Then the belt conveyor 5 conveys the loaded pallet 8 out.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic clamping mechanism applicable to pallets of different widths, comprising a vertical plate (1), characterized in that: The right side of the upright plate (1) is provided with a vertically arranged linear lifting module (2), the linear lifting module (2) is connected to a lifting frame (4), the lifting frame (4) is provided with two belt conveyor lines (5) for left and right transmission, the two belt conveyor lines (5) are arranged symmetrically in front and behind, and the upper end of the upright plate (1) is provided with a clamping and adjusting structure (6). The clamping adjustment structure (6) includes a mounting plate (61), two mounting plates (61) are horizontally arranged front and back, and a positive and negative toothed ball screw (62) is connected between the two mounting plates (61). The positive and negative toothed ball screw (62) is connected to a servo motor (63). The two nuts of the positive and negative toothed ball screw (62) are respectively connected to an adjustment plate (64). The two adjustment plates (64) are arranged left and right and are respectively located on the front and back sides of the two belt conveyor lines (5). A baffle (65) is connected to the opposite inner side of the two adjustment plates (64). A second linear guide rail (66) arranged front and back is connected to the left end of each of the two adjustment plates (64). A position sensor (67) is provided on the two adjustment plates (64).

2. The automatic clamping mechanism for pallets of different widths according to claim 1, characterized in that: The baffle (65) includes a connecting part (651) and a stop (652). The connecting part (651) is horizontally arranged and connected to the adjusting plate (64). The stop (652) is connected to the connecting part (651). The upper and lower sides of the stop (652) are bent toward the connecting part (651).

3. An automatic clamping mechanism applicable to pallets of different widths according to claim 2, characterized in that: The connecting part (651) is provided with a plurality of waist holes (653) arranged in front and behind, and the lower side of the baffle (652) is provided with a relief groove (654).

4. An automatic clamping mechanism applicable to pallets of different widths according to claim 1, characterized in that: The belt conveyor line (5) includes two pairs of support plates (51) arranged on the left and right. Each pair of support plates (51) is connected to a roller (52). One of the two rollers (52) is connected to a stepper motor (53). A conveyor belt (54) is connected between the two rollers (52).

5. An automatic clamping mechanism applicable to pallets of different widths according to claim 4, characterized in that: A guide bar (55) is provided in the middle of the back of the conveyor belt (54), and a support plate (56) is provided below the conveyor belt (54). The support plate (56) is provided with anti-deviation grooves arranged on the left and right. A guide groove is provided around the middle of the roller (52) along its circumference.

6. An automatic clamping mechanism applicable to pallets of different widths according to claim 1, characterized in that: The lifting frame (4) is provided with a limiting component (7) at the end away from the upright plate (1), and the limiting component (7) is located between the two belt conveyor lines (5).

7. An automatic clamping mechanism applicable to pallets of different widths according to claim 6, characterized in that: The limiting component (7) includes a lifting cylinder (71), the upper piston rod end of the lifting cylinder (71) is connected to a limiting plate (72), and a reinforcing plate (73) is provided on the side of the lifting cylinder (71).

8. An automatic clamping mechanism applicable to pallets of different widths according to claim 1, characterized in that: A sensor (68) is connected to one side of one of the two second linear guides (66).

9. An automatic clamping mechanism applicable to pallets of different widths according to claim 1, characterized in that: At least one vertically arranged first linear guide rail (3) is provided on the right side of the upright plate (1), and the slider of the first linear guide rail (3) is connected to the lifting frame (4).

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