A robot unloading device on a press line

Abstract

The utility model relates to stamping equipment technical field, concretely is a kind of robot material feeding device on stamping line, including support unit, the bottom of support unit is symmetrically provided with clamping pneumatic cylinder, the output end of clamping pneumatic cylinder is connected with the clamping unit of adjustable clamping spacing, adjustable clamping force's adjusting assembly is provided on the clamping unit, this robot material feeding device on stamping line, by main support, adjusting plate and sliding plate constitute the skeleton structure of clamping unit, in the case where the maximum stroke of clamping pneumatic cylinder is unchanged, the clamping spacing of two sides sliding plate can be freely adjusted with product size, different batches of products do not need to stop, improve the processing efficiency of continuous production process, by adjusting sleeve preset spring initial force to reduce idle stroke time, simultaneously by adjusting the displacement of clamping frame, output clamping force can be accurately adjusted, without replacing hardware can adapt to the clamping demand of different material workpieces, improve equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a robotic feeding device on a stamping line. Background Technology

[0002] A stamping line is a highly automated production line used for forming and processing metal sheets. It is widely used in industries such as automobiles, home appliances, and electronics. Its core is to apply pressure to the sheet metal through molds to achieve processes such as punching, bending, stretching, and forming. The stamping line robot feeding device is the core component of automated stamping production. It is used to accurately grab, position, and place sheet metal or semi-finished products, replacing traditional manual or mechanical feeding and greatly improving production efficiency and consistency.

[0003] To address the issue of robotic material handling on stamping lines, Chinese Patent Publication No. CN216989622U proposes a robotic material handling device for stamping lines. The device includes a conveyor line with a stamping base in the middle. A stamping frame is fixedly mounted at the upper end of the conveyor line, and a vertically downward-facing stamping cylinder is fixedly installed on the stamping frame. A stamping die is fixedly mounted on the output rod of the stamping cylinder. Material handling mechanisms for picking up and placing workpieces are located on both sides of the stamping frame at the upper end of the conveyor line. Each material handling mechanism includes a support assembly and material handling components mounted on the support assembly. The clamping component includes a rotary cylinder, with a double-headed cylinder fixedly connected to its output end. Clamping plates are mounted at both ends of the double-headed cylinder. The clamping plates have a Z-shaped structure and can be installed in either a forward or reverse orientation.

[0004] The aforementioned utility model utilizes a clamping structure driven by a double-headed cylinder to operate Z-shaped clamping plates on both sides. To accommodate products of different sizes, the Z-shaped clamping plates can be installed in either the forward or reverse direction. However, during continuous production, changes in product size require manual adjustment of the clamping plate installation method on-site, increasing downtime between different batches of products and affecting the processing efficiency of continuous production. Therefore, we propose a robotic feeding device for stamping lines. Utility Model Content

[0005] To solve the above-mentioned technical problems, this application provides a robot unloading device on a stamping line, including a support unit. The bottom of the support unit is symmetrically provided with clamping cylinders. The output end of the clamping cylinders is connected to a clamping unit with adjustable clamping distance. The clamping unit is provided with an adjustment component that can adjust the clamping force.

[0006] In some embodiments, the clamping unit includes a main support, an adjusting plate is slidably connected to the bottom of the main support, a first lead screw is rotatably connected to the adjusting plate, and the first lead screw is engaged with a ball nut embedded in the main support.

[0007] In some embodiments, a second lead screw is rotatably connected to the adjusting plate via a bearing, and a sliding plate is slidably connected in a symmetrically opened groove on the adjusting plate. The sliding plate is connected to the second lead screw via an internally embedded ball nut.

[0008] In some embodiments, a first motor and a second motor are respectively provided on one side of the adjustment plate, and the output ends of the first motor and the second motor are respectively fixedly connected to the first lead screw and the second lead screw.

[0009] In some embodiments, the adjustment assembly includes a mounting plate slidably connected between clamping frames of a double-plate structure, and a pressure spring is provided on the side of the clamping frame near the sliding plate, the pressure spring being fixed to the sliding plate.

[0010] In some embodiments, the support column fixedly mounted on the mounting plate is slidably connected in the through hole of the clamping frame, and one end of the support column is rotatably connected to an adjusting sleeve. A top pressure bracket is threadedly connected to the adjusting sleeve, and one end of the top pressure bracket is sleeved in the groove of the sliding plate.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. This utility model consists of a main support, an adjusting plate, and a sliding plate that are slidably connected to each other, forming the skeleton structure of the clamping unit. The first lead screw driven by the first motor cooperates with the ball nut embedded in the main support, which can drive the entire adjusting plate to slide at the bottom of the main support during the rotation of the first lead screw. At the same time, the second lead screw driven by the second motor cooperates with the ball nut embedded in the sliding plate, which can drive the sliding plate to slide at the bottom of the adjusting plate. During the production process, while the maximum stroke of the clamping cylinder remains unchanged, the clamping distance of the two sliding plates can be freely adjusted according to the product size. The production of different batches of products does not require machine downtime, thus improving the processing efficiency of continuous production.

[0013] 2. This utility model uses a sliding plate as the support structure for the adjustment component. The clamping frame presses against one side of the sliding plate while being connected to the mounting plate via a support column. The clamping frame sliding on the mounting plate consists of two plate components: one set of plates serves as the structure for the top pressure spring, and the other set is used to clamp the product. The pressure spring provides elastic support to the clamping frame. When the clamping cylinder applies pressure, the pressure spring absorbs part of the pressure, preventing product deformation or surface damage caused by rigid clamping. Simultaneously, the top pressure bracket is threadedly connected to an adjusting sleeve at one end of the support column. By adjusting the rotation of the adjusting sleeve, the initial distance between the sliding plate and the clamping frame can be adjusted, thereby adjusting the initial deformation of the pressure spring. By adjusting the initial spring force preset by the adjusting sleeve, the clamping frame quickly enters the effective clamping range upon contact with the workpiece, reducing idle travel time. Furthermore, the deformation of the pressure spring is linearly related to the clamping force. By controlling the displacement of the clamping frame, the output clamping force can be precisely adjusted, avoiding overload. It can adapt to the clamping requirements of workpieces of different materials without hardware replacement, improving the equipment's versatility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial exploded view of the structure of this utility model;

[0016] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0017] Figure 4 This is a partial structural schematic diagram of Embodiment 4 of the present invention.

[0018] In the diagram: 1-Support unit; 2-Clamping cylinder; 3-Clamping unit; 4-Adjusting assembly; 31-Main support; 32-Adjusting plate; 33-First lead screw; 34-Second lead screw; 35-Sliding plate; 36-First motor; 37-Second motor; 41-Mounting plate; 42-Clamping frame; 43-Pressure spring; 44-Support column; 45-Adjusting sleeve; 46-Top pressure bracket; 101-Enclosed cover; 102-Meshing gear set; 103-Self-adjusting motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please see Figure 1-2 This utility model provides a technical solution: a robotic unloading device on a stamping line, including a support unit 1. A clamping cylinder 2 is symmetrically arranged at the bottom of the support unit 1. A clamping unit 3 with adjustable clamping spacing is connected to the output end of the clamping cylinder 2. An adjustment component 4 for adjustable clamping force is provided on the clamping unit 3. The symmetrically arranged clamping cylinders 2 achieve the effect of synchronous dual-cylinder drive, ensuring uniform distribution of clamping force and avoiding uneven loading or workpiece displacement caused by unilateral force. The support unit 1 consists of a rotating cylinder and a support plate connecting the clamping cylinders 2, providing a stable mounting platform and reducing the impact of vibration or external force interference on clamping accuracy. The clamping range of the clamping cylinders 2 can be adjusted by the clamping unit 3 to adapt to workpieces of different sizes without the need to change clamps.

[0022] Example 2:

[0023] Please see Figure 2-3 The clamping unit 3 includes a main support 31. An adjusting plate 32 is slidably connected to the bottom of the main support 31. A first lead screw 33 is rotatably connected to the adjusting plate 32. The first lead screw 33 is connected to a ball screw nut embedded inside the main support 31. A second lead screw 34 is rotatably connected to the adjusting plate 32 via a bearing. A sliding plate 35 is slidably connected to symmetrically opened grooves on the adjusting plate 32. The sliding plate 35 is connected to the adjusting plate 32 via symmetrical grooves to distribute the force and avoid jamming or wear caused by unilateral tilting. The sliding plate 35 is connected to the second lead screw 34 via a ball screw nut embedded inside. A first motor 36 and a second motor 37 are respectively installed on one side of the adjusting plate 32. The output ends of the first motor 36 and the second motor 37 are fixedly connected to the first lead screw 33 and the second lead screw 34, respectively, and are controlled by the first motor 36. The longitudinal displacement of the adjusting plate 32 is controlled by the first motor 36, and the longitudinal displacement of the sliding plate 35 is controlled by the second motor 37, so as to realize the dual-stage independent adjustment of the clamping distance. During the adjustment process, the main support 31, the adjusting plate 32 and the sliding plate 35, which are slidably connected to each other, form the skeleton structure of the clamping unit 3. The first lead screw 33 driven by the first motor 36 cooperates with the ball nut embedded in the main support 31, so that the entire adjusting plate 32 can slide at the bottom of the main support 31 during the rotation of the first lead screw 33. At the same time, the second lead screw 34 driven by the second motor 37 cooperates with the ball nut embedded in the sliding plate 35, so that the sliding plate 35 can slide at the bottom of the adjusting plate 32. During the production process, with the maximum stroke of the clamping cylinder 2 unchanged, the clamping distance of the two sliding plates 35 can be freely adjusted according to the product size.

[0024] Example 3:

[0025] Please see Figure 2-3The adjustment assembly 4 includes a mounting plate 41, which is slidably connected between the clamping frames 42 of the double-plate structure. A pressure spring 43 is provided on the side of the clamping frame 42 near the sliding plate 35. The pressure spring 43 is fixed to the sliding plate 35. A support column 44 fixedly mounted on the mounting plate 41 is slidably connected to a through hole in the clamping frame 42. One end of the support column 44 is rotatably connected to an adjusting sleeve 45. A top pressure bracket 46 is threadedly connected to the adjusting sleeve 45. One end of the top pressure bracket 46 is sleeved in a groove in the sliding plate 35. The pressure spring 43 has a buffer design to absorb the clamping force. The spring automatically extends and retracts to compensate for minor workpiece dimensional tolerances, ensuring stable clamping force and preventing overload or clamping failure. Rotating the adjusting sleeve 45 pushes the top pressure bracket 46 axially, changing the spring pre-compression and thus precisely setting the initial clamping force. Increasing the pre-compression improves clamping rigidity, suitable for heavy-duty workpieces, while decreasing the pre-compression reduces clamping force, protecting fragile workpieces. The mounting plate 41 slides between the two plates, guided by the through-hole of the support column 44, ensuring linearity of the clamping action and preventing off-center loading and jamming. The sliding plate 35 serves as the support structure for the adjustment component 4. The clamping frame 42 presses against one side of the sliding plate 35 while being connected to the mounting plate 41 via a support column 44. The clamping frame 42, sliding on the mounting plate 41, consists of two plate components. One set of plates forms the structure of the top pressure spring 43, and the other set is used to clamp the product. The pressure spring 43 provides elastic support for the clamping frame 42. When the clamping cylinder 2 applies pressure, the pressure spring 43 absorbs part of the pressure, preventing product deformation or surface damage caused by rigid clamping. Simultaneously, the top pressure bracket 46 is connected to the support column 41 via a threaded connection. On the adjusting sleeve 45 at one end of the support column 44, the initial distance between the sliding plate 35 and the clamping frame 42 can be adjusted by rotating the adjusting sleeve 45, thereby adjusting the initial deformation of the pressure spring 43. By adjusting the initial spring force preset by the adjusting sleeve 45, the clamping frame 42 can quickly enter the effective clamping range when contacting the workpiece, reducing the idle stroke time. At the same time, the deformation of the pressure spring 43 is linearly related to the clamping force. By controlling the displacement of the clamping frame 42, the output clamping force can be precisely adjusted to avoid overload. It can adapt to the clamping requirements of workpieces of different materials without changing the hardware, improving the versatility of the equipment.

[0026] Example 4:

[0027] Please see Figure 1-4This utility model provides a technical solution: a robotic feeding device on a stamping line, including a support unit 1. A clamping cylinder 2 is symmetrically arranged at the bottom of the support unit 1. A clamping unit 3 with adjustable clamping spacing is connected to the output end of the clamping cylinder 2. An adjusting component 4 with adjustable clamping force is provided on the clamping unit 3. Based on embodiment one, a closed cover 101, a meshing gear set 102, and a self-adjusting motor 103 are added. The meshing gear set 102 consists of two sets of meshing gears, one wide and one narrow. The wide gear is fixed to the output end of the self-adjusting motor 103, which is fixed to a sliding plate 35. The narrow gear is fixed to an adjusting sleeve 45. On one side, the enclosure 101 is fixed on the sliding plate 35, and the meshing gear set 102 and the self-adjusting motor 103 are both located inside the enclosure 101. The enclosure 101 encloses the meshing gear set 102 and the self-adjusting motor 103 to prevent external dust, oil or foreign objects from entering, reduce mechanical wear, and extend the service life of the core transmission components. At the same time, the noise of gear meshing and motor operation is blocked by the enclosure 101, improving the working environment. The self-adjusting motor 103 directly drives the gear set to operate and automatically controls the rotation of the adjusting sleeve 45, reducing manual intervention and improving operating efficiency. The clamping force can be automatically adjusted during the production process.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robot unloading device on a press line, comprising a support unit (1), characterized in that: The bottom of the support unit (1) is symmetrically provided with clamping cylinders (2), and the output end of the clamping cylinder (2) is connected to a clamping unit (3) with adjustable clamping distance. The clamping unit (3) is provided with an adjustment component (4) that can adjust the clamping force.

2. The robotic feeding device on the stamping line according to claim 1, characterized in that: The clamping unit (3) includes a main support (31), and an adjusting plate (32) is slidably connected to the bottom of the main support (31). A first lead screw (33) is rotatably connected to the adjusting plate (32), and the first lead screw (33) is connected to a ball nut embedded in the main support (31).

3. The robotic feeding device on the stamping line according to claim 2, characterized in that: The adjustment plate (32) is rotatably connected to the second lead screw (34) via a bearing, and a sliding plate (35) is slidably connected in the symmetrically opened grooves of the adjustment plate (32). The sliding plate (35) is connected to the second lead screw (34) through an internally embedded ball nut.

4. The robotic unloading device on the stamping line according to claim 3, characterized in that: The first motor (36) and the second motor (37) are respectively provided on one side of the adjustment plate (32). The output ends of the first motor (36) and the second motor (37) are respectively fixedly connected to the first lead screw (33) and the second lead screw (34).

5. The robotic unloading device on a stamping line according to claim 1, characterized in that: The adjustment assembly (4) includes a mounting plate (41) which is slidably connected between the clamping frames (42) of the double plate structure. A pressure spring (43) is provided on the side of the clamping frame (42) near the sliding plate (35), and the pressure spring (43) is fixed on the sliding plate (35).

6. The robotic unloading device on the stamping line according to claim 5, characterized in that: The support column (44) fixedly installed on the mounting plate (41) is slidably connected in the through hole of the clamping frame (42). One end of the support column (44) is rotatably connected to the adjusting sleeve (45). The adjusting sleeve (45) is connected to the top pressure bracket (46) by threaded connection. One end of the top pressure bracket (46) is sleeved in the groove of the sliding plate (35).

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