Bidirectional side face positioning and clamping device

Abstract

The utility model discloses a bidirectional side positioning and clamping device, which relates to the field of mechanical equipment, solves the problems of poor stability and potential safety hazard caused by the fact that a stop pin is manually placed into a clamping groove to stop a tray from moving in the conventional tray clamping, and comprises a conveying assembly for conveying the tray, and a gap is formed in the middle of the conveying assembly; the first limiting assembly is arranged on one side of the conveying assembly, and the first limiting assembly is used for abutting against the tray when the conveying assembly conveys the tray to a preset position so as to limit the tray; and the two second limiting assemblies are arranged at the gap of the conveying assembly, when the tray is located at the preset position, the two second limiting assemblies are located at the two ends of the tray correspondingly, and the two second limiting assemblies can get close to the two ends of the tray till abutting against the two ends of the tray so that the tray can be fixed to the conveying assembly. And the tray can be positioned and clamped, the automation degree is high, and it is guaranteed that a robot can accurately install a workpiece.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a bidirectional side positioning and clamping device. Background Art

[0002] Currently, in the automated production process, a robot is usually used to place the workpiece on a pallet for fixation. The pallet is placed on a roller conveyor and moves with the operation of the roller conveyor. The pallet is provided with positioning pins, and the workpiece is provided with corresponding positioning holes. When the workpiece is placed on the pallet, the positioning holes of the workpiece are aligned with the positioning pins on the pallet. The workpiece is fixed on the pallet through the positioning pins of the pallet, which facilitates the processing of the workpiece in subsequent steps.

[0003] The gap between the positioning hole and the positioning pin of the workpiece is generally only about 0.03-0.05mm. In order to achieve precise positioning, the pallet must be fixed so that the positioning pin on the pallet can be inserted into the positioning hole of the workpiece. At present, the main method is to manually use a stop pin to put it into the slot of the roller conveyor, and use the stop pin to clamp the pallet to prevent the pallet from moving. Then the robot hoists the positioning hole to align with the positioning pin, and fix the workpiece on the pallet. However, this method of using a stop pin to block the movement of the pallet, on the one hand, requires manual operation to put the stop pin into the slot of the roller conveyor during the process of placing and pulling the stop pin, which is dangerous; on the other hand, the operation of the entire roller conveyor process does not stop. Only using a stop pin to block the pallet will result in the stop pin not being able to make the pallet completely still. Therefore, it is often difficult to align the positioning hole with the positioning pin, or the positioning pin and the positioning hole are misaligned due to the movement of the pallet during alignment and fixation. This makes the entire workpiece fixing process time-consuming and labor-intensive, greatly affecting the subsequent workpiece production efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the existing problem of manually placing a stop pin into a slot to prevent the pallet from moving. This blocking method has poor stability and poses a safety hazard. The utility model provides a two-way side positioning and clamping device that can position and clamp the pallet, with a high degree of automation, ensuring that the robot can accurately install the workpiece.

[0005] To solve the above technical problems, the embodiment of the present utility model discloses a bidirectional side positioning and clamping device, comprising a frame, and a conveying assembly arranged on the frame for conveying a tray, wherein a gap is provided in the middle of the conveying assembly;

[0006] The first limiting assembly is provided on one side of the conveying assembly, and is used to abut against the pallet when the conveying assembly conveys the pallet to a preset position, so as to limit the pallet;

[0007] Two second limiting components are arranged in the gap of the conveying component. When the tray is at the preset position, the two second limiting components are respectively located at both ends of the tray. The two second limiting components can approach the two ends of the tray until they abut against the two ends of the tray to fix the tray on the conveying component.

[0008] By adopting the above technical solution, the pallet can be positioned and clamped, with a high degree of automation, ensuring that the robot can accurately install the workpiece.

[0009] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that a conveying assembly includes a plurality of conveying wheels arranged at intervals, and the conveying wheels are used to convey pallets; a first limiting assembly includes a first cylinder and a first limiting member, the first cylinder is arranged on the conveying assembly, the first driving shaft of the first cylinder is toward the conveying assembly, the first limiting member is connected to the first driving shaft, and the first driving shaft is used to drive the first limiting member to approach the conveying wheel so that the first limiting member abuts against the pallet conveyed by the conveying wheel.

[0010] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the second limiting component includes:

[0011] The mounting plate is arranged at the bottom of the conveying assembly, and its two ends are fixedly connected to the bottom of the conveying assembly;

[0012] a second cylinder, disposed on the mounting plate and located in the gap of the conveying assembly;

[0013] The second limiting member is located on the second cylinder, and the second cylinder can drive the second limiting member to move toward the end of the tray.

[0014] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the second limiting member includes:

[0015] A positioning plate is provided on the second cylinder, and the second cylinder is used to drive the positioning plate to approach the end of the tray;

[0016] The positioning member is provided on the positioning plate, on which a positioning block is rotatably mounted. The positioning block can switch between a first position and a second position. When located in the first position, the second cylinder drives the positioning plate toward the end of the pallet, and the positioning block can abut against the pallet. When the positioning block is located in the second position, the positioning block is located below the pallet, and the pallet can be conveyed to the next process from above the positioning block along with the conveying assembly.

[0017] One end of the third cylinder is rotatably connected to the positioning plate, and a third driving shaft of the third cylinder is connected to the positioning block for driving the positioning block to switch between the first position and the second position.

[0018] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that two positioning members are provided, and the two positioning members are relatively arranged on both sides of the mounting plate. A positioning block is rotatably connected in each of the two positioning members. The second limiting member also includes a swing shaft, and the two ends of the swing shaft are respectively connected to the two positioning holes. The third cylinder is connected to the center of the swing shaft. The third cylinder is used to push the swing shaft to move, and is used to drive the positioning block to switch between the first position and the second position.

[0019] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the third cylinder is installed on the positioning plate at an angle of rotation, the second limit member also includes a bearing, the outer ring of the bearing is connected to the end of the third drive shaft, and the swing shaft passes through the inner ring of the bearing and is rotatably connected to the bearing.

[0020] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that pin holes are opened at both ends of the tray, and a pin is provided on the positioning block. When the positioning block is located at the first position and abuts against the tray, the pin can be inserted into the pin hole.

[0021] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the positioning member is provided with a slot, and the positioning block is rotatably installed in the slot via a pin shaft.

[0022] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the second limiting assembly also includes a limiting block, which is arranged on the positioning member, and a limiting bolt is arranged on the limiting block, which is used to abut against the positioning block when the positioning block moves to the second position.

[0023] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the conveying assembly includes two linear guide rails, and the two linear guide rails are arranged in parallel and at intervals along the conveying direction of the pallet.

[0024] The beneficial effects of the present application are: by providing a two-way side positioning and clamping device, the first limit component and the second limit component are used to fix the pallet on the frame. The entire process adopts automated fixation, which has good stability and high degree of automation, thereby improving the installation efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a conveying assembly, a tray, a first limiting assembly, and a second limiting assembly according to an embodiment of the present utility model is shown;

[0026] Figure 2 Show Figure 1 A in the middle is an enlarged schematic diagram;

[0027] Figure 3 A front perspective view of the second position limiting assembly according to an embodiment of the present utility model is shown;

[0028] Figure 4 A back perspective view of the second limiting assembly according to an embodiment of the present invention is shown.

[0029] In the picture:

[0030] 1. Frame;

[0031] 2. Conveying assembly; 21. Conveying wheel;

[0032] 3. First position-limiting assembly; 31. First cylinder; 32. First position-limiting member; 33. First drive shaft; 34. Fixed bracket;

[0033] 4. Second limiting assembly; 41. Mounting plate; 42. Second cylinder; 43. Second limiting member; 431. Positioning plate; 432. Third cylinder; 433. Positioning member; 434. Positioning block; 435. Bearing; 436. Swing shaft; 437. Pin; 438. Reinforcement plate; 439. Third drive shaft; 44. Pin; 45. Limiting block; 46. Limiting bolt;

[0034] 5. Pallet. DETAILED DESCRIPTION

[0035] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0038] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0039] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0041] Example 1:

[0042] Reference Figures 1 to 4 The present application provides a bidirectional side positioning and clamping device, including a frame 1, and a conveying component 2 arranged on the frame 1 for conveying a pallet 5, with a gap arranged in the middle of the conveying component 2; it also includes a first limiting component 3, which is arranged on one side of the conveying component 2, and the first limiting component 3 is used to abut against the pallet 5 when the conveying component 2 conveys the pallet 5 to a preset position, so as to limit the pallet 5; two second limiting components 4, which are arranged in the gap of the conveying component 2, and when the pallet 5 is at the preset position, the two second limiting components 4 are respectively located at both ends of the pallet 5, and the two second limiting components 4 can approach the two ends of the pallet 5 until they abut against the two ends of the pallet 5, so as to fix the pallet 5 on the conveying component 2.

[0043] In this embodiment, the conveyor assembly 2 is supported by a frame 1, which is welded from metal to prevent shaking during the conveyance of the pallet 5. Anchor bolts (not shown) are installed at the bottom of the frame 1 to secure the entire conveyor assembly 2 to the corresponding workspace floor, ensuring its accurate and stable installation position. The width of the gap provided in the center of the conveyor assembly 2 is determined by the size of the pallet 5 and the required space for the installation and movement of the second stop assembly 4.

[0044] The first limiting assembly 3 is mounted on a fixed bracket 34 on one side of the conveying assembly 2. The fixed bracket 34 is connected and fixed to the frame 1 of the conveying assembly 2 to ensure a stable position. When the conveying assembly 2 conveys the pallet 5 to a preset position, in this application, when the conveying assembly 2 conveys the pallet 5 to a certain distance from the first limiting assembly 3, the control system drives the first limiting assembly 3 to move toward the pallet 5. When the pallet 5 is about to reach the first limiting assembly 3, the first limiting assembly 3 extends into place until it abuts against the pallet 5, thereby limiting the pallet 5 on that side. After the workpiece is fixed, the first limiting assembly 3 moves away from the pallet 5, releasing the limit on the pallet 5, and allowing the pallet 5 to continue to move to the next process along with the conveying assembly.

[0045] Two second stopper assemblies 4 are symmetrically positioned below and on either side of the gap between the conveyor assembly 2. Each second stopper assemblies 4 is installed along the length of the conveyor assembly 2, i.e., the conveying direction of the tray 5, and is fixed to the support frame below the conveyor assembly 2. The installation accuracy of the second stopper assemblies 4 is guaranteed to meet the requirements of smooth sliding toward or away from the ends of the tray 5.

[0046] After the first limiting component 3 completes the limiting of the pallet, the two second limiting components 4 move toward the pallet 5 from both ends of the pallet 5 until they abut against the pallet 5 to further limit and fix the pallet 5. The first limiting component 3 and the second limiting component 4 cooperate to fix the pallet 5 on the frame 1 to prevent the pallet 5 from shaking. After the workpiece is fixed on the pallet 5, the two second limiting components 4 move away from the two ends of the pallet 5, and then the first limiting component 3 moves away from the pallet 5 to release the limiting of the pallet 5.

[0047] Furthermore, synchronous control technology is used to ensure that the two second limit assemblies 4 can accurately and synchronously approach the two ends of the pallet 5 for fixation. By setting the same control signal in the control system to drive the two second limit assemblies 4 at the same time, feedback devices such as encoders are installed, and the position information of the movement of the second limit assemblies 4 is monitored in real time and fed back to the control system. When the positions of the two second limit assemblies 4 are inconsistent, the control system is adjusted in time to make the two second limit assemblies 4 move synchronously to fix the pallet 5 on the conveying assembly 2.

[0048] By adopting the above technical solution, the pallet 5 can be positioned and clamped, with a high degree of automation, ensuring that the robot can accurately install the workpiece.

[0049] Example 2:

[0050] Continue to refer to Figure 1 and Figure 2The conveying assembly 2 includes a plurality of conveying wheels 21 arranged at intervals, and the conveying wheels 21 are used for the pallet 5; the first limiting assembly 3 includes a first cylinder 31 and a first limiting member 32, the first cylinder 31 is arranged on the conveying assembly 2, and the first driving shaft 33 of the first cylinder 31 faces the conveying assembly 2, the first limiting member 32 is connected to the first driving shaft 33, and the first driving shaft 33 is used to drive the first limiting member 32 to approach the conveying wheel 21 so that the first limiting member 32 abuts against the pallet 5 conveyed by the conveying wheel 21.

[0051] In this embodiment, the conveyor wheels 21 are made of polyurethane. The wear resistance and elasticity of polyurethane ensure smooth conveyance of the pallet 5 while reducing hard collisions and wear with the pallet 5. Multiple conveyor wheels 21 are arranged at equal intervals along the conveyance direction of the pallet 5, with the spacing determined by the size of the pallet 5 and the support requirements of the bottom of the pallet 5.

[0052] The first cylinder 31 is a thin cylinder with a compact structure, small footprint, and easy installation on the conveying assembly 2. The cylinder's diameter and other parameters are selected based on the weight of the pallet 5 and the thrust required during the positioning process. The first limiting member 32 is a metal plate structure. The vertical portion of the metal plate is fixed to the first drive shaft 33 of the first cylinder 31 through a threaded connection to ensure the stability of the connection and prevent loosening during the positioning process. A stopper is provided at the end of the horizontal portion of the metal plate for contacting the side of the pallet 5. The vertical portion of the metal plate serves to strengthen the structural strength and facilitate installation and positioning.

[0053] Furthermore, a photoelectric sensor is provided at the corresponding position of the conveying component 2. When the conveying wheel 21 conveys the pallet 5 to the preset position, the photoelectric sensor detects whether the pallet 5 reaches the specified position and sends a signal to the control system. After receiving the signal, the control system controls the first driving shaft 33 of the first cylinder 31 to extend, and drives the first limiting member 32 to move toward the conveying wheel 21 until the first limiting member 32 abuts against the pallet 5, thereby limiting the pallet 5 on that side.

[0054] Example 3:

[0055] Continue to refer to Figure 1 The second limiting assembly 4 includes a mounting plate 41, which is arranged at the bottom of the conveying assembly 2, and its two ends are fixedly connected to the bottom of the conveying assembly 2; a second cylinder 42, which is arranged on the mounting plate 41 and located in the gap of the conveying assembly 2; a second limiting member 43, which is located on the second cylinder 42, and the second cylinder 42 can drive the second limiting member 43 to move toward the end of the tray 5.

[0056] In this embodiment, the mounting plate 41 is made of high-strength carbon steel and processed through cutting, welding, and other processes. Its shape is designed to be triangular, and its length is determined by the gap length of the conveyor assembly 2 and the installation space required on both sides. It is usually slightly longer than the gap length of the conveyor assembly 2 to ensure sufficient installation area without making the entire structure too large and wasting material and space.

[0057] The thickness of the mounting plate 41 is strong enough to support components such as the second cylinder 42 , and is fixedly connected to the bottom of the conveying assembly 2 by high-strength bolts.

[0058] Furthermore, reinforcing ribs are welded to the bottom of mounting plate 41 to further enhance its load-bearing capacity and stability. These ribs, made of equilateral angle steel, are strategically arranged along the length and width of mounting plate 41. Ribs are welded every 30 to 40 centimeters along the length, and two ribs are welded on either side of the width, forming a grid-like reinforcement structure. This effectively disperses the pressure applied by components such as the second cylinder 42, preventing deformation of mounting plate 41 due to uneven force. Furthermore, a layer of anti-loosening glue can be applied to the contact surface between mounting plate 41 and the bottom of conveyor assembly 2 to aid in the bolt connection and further enhance the reliability of the connection.

[0059] The second cylinder 42 is fixed on the mounting plate 41. The mounting plate 41 is provided with a slot and a bolt hole that match the shape of the second cylinder 42. The second cylinder 42 is firmly mounted by inserting the slot and fastening it with bolts.

[0060] Example 4:

[0061] Reference Figure 3 and Figure 4The second limiting member 43 includes: a positioning plate 431, which is arranged on the second cylinder 42, and the second cylinder 42 is used to drive the positioning plate 431 to approach the end of the tray 5; the positioning member 433 is arranged on the positioning plate 431, and a positioning block 434 is rotatably mounted on it, and the positioning block 434 can switch between the first position and the second position. When it is in the first position, the second cylinder 42 drives the positioning plate 431 to approach the end of the tray 5, and the positioning block 434 can abut against the tray 5; when the positioning block 434 is in the second position, the positioning block 434 is located below the tray 5, and the tray 5 can be transported to the next process from above the positioning block 434 along with the conveying assembly 2; the third cylinder 432, one end of which is rotatably connected to the positioning plate 431, and the third driving shaft 439 of the third cylinder 432 is connected to the positioning block 434, and is used to drive the positioning block 434 to switch between the first position and the second position. Two positioning members 433 are provided, and the two positioning members 433 are relatively arranged on both sides of the mounting plate 41. A positioning block 434 is rotatably connected in each of the two positioning members 433. The second limiting member 43 also includes a swing shaft 436. The two ends of the swing shaft 436 are respectively connected to the two positioning holes. The third cylinder 432 is connected to the center of the swing shaft 436. The third cylinder 432 is used to push the swing shaft 436 to move, and is used to drive the positioning block 434 to switch between the first position and the second position.

[0062] In this embodiment, the positioning plate 431 is constructed entirely of a sturdy yet lightweight metal material and is designed as a plate-like structure to provide ample space for the layout of various related components. One end of the positioning plate 431 is securely connected to the piston rod end of the second cylinder 42 via welding or high-strength bolts. This ensures that, driven by the expansion and contraction of the second cylinder 42, the positioning plate 431 can move smoothly and accurately toward the end of the tray 5 without becoming loose or becoming detached.

[0063] Mounting seats for installing guide components (such as sliders, etc.) are provided on the edge positions on both sides of the positioning plate 431. These mounting seats are fixed to the positioning plate 431 by integral molding or welding. Corresponding mounting holes are processed on the mounting seats to facilitate the subsequent installation of guide components, thereby ensuring that the positioning plate 431 moves linearly in a predetermined direction and accurately approaches the end of the tray 5.

[0064] Example 5:

[0065] Reinforcing ribs are welded to the back of positioning plate 431—the side opposite the mounting components—to enhance its structural strength and prevent deformation from stress during long-term use. The ribs are arranged in a crisscross grid pattern, with the spacing between them determined based on the dimensions of positioning plate 431, typically between 10 and 20 centimeters. This reinforced structure effectively disperses the forces generated by the second cylinder 42 and the contact between positioning block 434 and tray 5, ensuring the overall stability of positioning plate 431.

[0066] The two positioning members 433 are symmetrically located on either side of the positioning plate 431 and are secured to the positioning plate 431 via welding or bolts to ensure a secure and reliable connection. During installation, the relative positional accuracy of the two positioning members 433 must be strictly maintained, ensuring that they are in the same plane and the dimensions of their corresponding parts are completely symmetrical. This provides the foundation for the subsequent synchronous rotation and precise positioning of the positioning block 434.

[0067] Furthermore, each positioning member 433 has a corresponding accommodation space and installation structure for installing the components required for rotating and connecting the positioning block 434. A connection structure is also provided on its outer edge to facilitate the installation of protective devices such as a shield to prevent debris from entering the rotating part, so as to ensure the smoothness of the rotation of the positioning block 434 and the service life of the entire device.

[0068] Furthermore, the positioning block 434 is made of a material with a certain strength and good elasticity, such as a composite material of polyurethane and a metal frame. The external polyurethane part can play a buffering role when it abuts against the tray 5, avoiding damage to the tray 5. At the same time, the internal metal frame ensures the overall structural strength of the positioning block 434, so that it can withstand a certain external force without excessive deformation.

[0069] Furthermore, the shape of the positioning block 434 is designed to match the shape of the end of the tray 5. If the end of the tray 5 is flat, the contact surface of the positioning block 434 is also flat; if the end of the tray 5 has a certain curvature, the contact surface of the positioning block 434 is designed to be curved accordingly. This increases the contact area with the end of the tray 5 and improves the stability and accuracy of positioning. In addition, the edges of the positioning block 434 are appropriately rounded to prevent scratching other components or the tray 5 during rotation.

[0070] Furthermore, the swing shaft 436 is made of a high-strength metal material, with its ends securely connected to corresponding portions of the two positioning blocks 434, either by welding or by securing with specialized connectors. This ensures a secure connection between the swing shaft 436 and the positioning blocks 434, enabling synchronous power transmission. The center of the swing shaft 436 is connected to the third drive shaft 439 of the third cylinder 432. This allows the third cylinder 432 to effectively propel the swing shaft 436 in rotation about its center during expansion and contraction, thereby driving the positioning blocks 434 at both ends to synchronously switch angles. This ensures that the two positioning blocks 434 can coordinately transition between their first and second positions, maintaining synchronization and accuracy throughout the positioning process.

[0071] When the positioning block 434 is in the first position, it can accurately contact and abut the end of the pallet 5 as the positioning plate 431 is pushed toward the end of the pallet 5 by the second cylinder 42, thereby limiting and fixing the pallet 5 in the end direction and preventing the pallet 5 from shifting in the subsequent process. When the pallet 5 needs to continue to be transported to the next process by the conveyor assembly 2, the positioning block 434 will rotate and switch to the second position under the action of the third cylinder 432. At this time, the positioning block 434 is located below the pallet 5, allowing the pallet 5 to pass smoothly over it without being blocked, thus achieving flexible positioning and release functions for the pallet 5 during transportation.

[0072] Furthermore, to ensure the stability of swing shaft 436 during movement, corresponding reinforcement plates 438 are installed at its ends where it connects to positioning block 434 and where it connects to third cylinder 432. The addition of additional reinforcement plates 438 at these connections prevents loosening of the connection or deformation of swing shaft 436 during frequent pushing and turning. Furthermore, reinforcement plates 438 share some of the weight and external forces borne by swing shaft 436, allowing it to rotate more smoothly and drive positioning block 434 to complete the position switching action.

[0073] The cylinder body of the third cylinder 432 is rotatably connected to the positioning plate 431, one end of which is welded or bolted to the positioning plate 431, and the other end is hinged to the cylinder body of the third cylinder 432 through a pin shaft 437, so that the third cylinder 432 can flexibly rotate relative to the positioning plate 431 around the hinge point to meet the angle change requirements under different working conditions.

[0074] The extension and retraction of the third cylinder 432 is centrally coordinated and controlled by the control system. Based on the conveying status of the pallet 5 and the process stage of the entire apparatus, the control system accurately issues commands to drive the third cylinder 432 to extend and retract. For example, when the pallet 5 reaches a predetermined position and needs to be positioned and secured, the control system controls the retraction of the third cylinder 432, rotating the positioning block 434 to the first position via the swing shaft 436. When the pallet 5 completes the current process and needs to be conveyed to the next process, the control system controls the extension of the third cylinder 432, rotating the positioning block 434 to the second position, releasing the pallet 5. Furthermore, the third cylinder 432 and the second cylinder 42 operate in close coordination. Under the coordination of the control system, the two cylinders complete their respective actions in an orderly manner, ensuring the smooth execution of the entire positioning and conveying process.

[0075] Example 6:

[0076] Reference Figure 4 The third cylinder 432 is installed on the positioning plate 431 at an angle for rotation. The second limit member 43 also includes a bearing 435. The outer ring of the bearing 435 is connected to the end of the third drive shaft 439. The swing shaft 436 passes through the inner ring of the bearing 435 and is rotatably connected to the bearing 435.

[0077] In this embodiment, the third cylinder 432 is rotatably mounted on the positioning plate 431 via a hinge assembly. The hinge assembly comprises a hinge base and a pin 437. The hinge base is made of high-strength carbon steel. One end of the hinge base is fixed to a designated position on the positioning plate 431 by welding or bolting. The other end is provided with an ear hole that matches the pin 437, and the pin 437 is inserted into the ear hole.

[0078] Bearing 435 features a simple structure, low friction coefficient, high maximum speed, and moderate load capacity, making it suitable for relatively flexible connections subject to low forces. The outer ring of bearing 435 is connected to the end of third drive shaft 439, which has a mounting hole machined into the end to accommodate the outer ring of bearing 435. This ensures that the outer ring of bearing 435 is securely fixed to the drive shaft after installation and prevents loosening. During installation, a dedicated bearing 435 installation tool is used to smoothly press bearing 435 into the mounting hole, ensuring high-quality and precise installation.

[0079] The inner ring of bearing 435 is rotationally connected to pendulum shaft 436, which passes through the inner ring of bearing 435. The contact area between pendulum shaft 436 and the inner ring of bearing 435 has been machined to achieve a low surface roughness and good cylindricity, allowing pendulum shaft 436 to rotate smoothly within the inner ring of bearing 435. Furthermore, an axial positioning device, such as a shoulder or a retaining spring, is installed on pendulum shaft 436 to prevent axial movement of pendulum shaft 436 and secure its axial position within the inner ring of bearing 435, ensuring the stability of the entire rotational connection structure.

[0080] Example 7:

[0081] Continue to refer to Figures 1 to 3 Pin holes are provided at both ends of the tray 5, and a pin 44 is provided on the positioning block 434. When the positioning block 434 is located at the first position and abuts against the tray 5, the pin 44 can be inserted into the pin hole.

[0082] In this embodiment, the positions of the pin holes at both ends of tray 5 are determined based on the overall structure of tray 5 and the precise positioning requirements required for subsequent positioning. The pin holes are located in the central areas of the ends of tray 5 to ensure uniform force during positioning and maintain a stable position of tray 5. The pin holes are circular in shape, with a diameter that matches the size of pin 44 on positioning block 434, leaving a certain gap to facilitate smooth insertion of pin 44 without affecting positioning accuracy.

[0083] The depth of the pin hole should ensure sufficient contact length for the pin 44 after insertion to provide a stable and reliable connection. The pin hole depth is set to approximately two-thirds of the length of the pin 44. Appropriate chamfering is applied at the entrance and exit of the pin hole. The chamfer angle range is: 45°-60° to avoid stress concentration at the edge of the pin hole, making the pin 44 insert and remove more smoothly and reducing damage to the tray 5 structure.

[0084] The pin 44 mounted on the positioning block 434 is constructed from a high-strength metal material, such as stainless steel or alloy steel, ensuring sufficient hardness and wear resistance to withstand the frictional forces associated with repeated insertion and removal from the pin hole, as well as the external forces experienced during positioning. Pin 44 is cylindrical in shape, with a slightly tapered head. The taper angle matches the chamfered angle at the entrance to the pin hole in tray 5, facilitating smoother insertion of pin 44 into the pin hole when the positioning block 434 abuts against the tray 5.

[0085] Example 8:

[0086] The positioning member 433 is provided with a slot (not shown in the figure), and the positioning block 434 is rotatably installed in the slot via a pin 437 .

[0087] In this embodiment, the slot is U-shaped, with a width 0.5-1.0 mm larger than the diameter of the rotation axis of positioning block 434, providing clearance for rotation. The slot edges are chamfered to prevent sharp corners from scratching positioning block 434 or other components. A shoulder is designed on one end of the pin 437, while the other end is threaded to prevent axial movement. The pin 437 seamlessly fits into the slotted hole of positioning member 433, ensuring smooth rotation without noticeable play.

[0088] Example 9:

[0089] Continue to refer to Figure 3 The second limiting assembly 4 also includes a limiting block 45, which is arranged on the positioning member 433. A limiting bolt 46 is provided on the limiting block 45, and the limiting bolt 46 is used to abut against the positioning block 434 when the positioning block 434 moves to the second position.

[0090] In this embodiment, the limiting bolt 46 is used to abut against the positioning block 434 after the positioning block 434 moves to the second position, thereby preventing the positioning block 434 from excessively returning to its original position under the drive of the third cylinder 432 .

[0091] Limit block 45 is made of metal and is plate-like in shape. It has a certain thickness and strength to withstand the force generated by the abutment of positioning block 434. Limit block 45 is fixed to positioning member 433 by bolts or welding. The installation position is precisely determined based on the specific position of positioning block 434 in the second position, ensuring that the limiting bolt 46 on limit block 45 accurately abuts positioning block 434 when positioning block 434 moves to the second position.

[0092] A threaded hole that matches the limiting bolt 46 is processed on the limiting block 45. The size and thread specification of the threaded hole must completely match the selected limiting bolt 46 to ensure that the limiting bolt 46 can be smoothly screwed into the threaded hole and has good connection stability after tightening.

[0093] The limiting bolt 46 is made of high-strength alloy steel. One end of the limiting bolt 46 is a threaded part, which is used to cooperate with the threaded hole on the limiting block 45. It is screwed in or out of the threaded hole by rotating, so as to adjust the extension length of the limiting bolt 46; the other end is a butt joint part, and the shape of the butt joint part is designed according to the butt joint requirements with the positioning block 434, and can be different shapes such as plane, spherical or conical.

[0094] If the abutting surface of the positioning block 434 is a plane, the abutting head of the limiting bolt 46 can be designed to be a plane to increase the contact area and disperse the pressure during abutment; if more precise positioning is required, the abutting head can be designed to be a spherical or conical surface to better cooperate with the corresponding positioning point on the positioning block 434.

[0095] The extension length of the limiting bolt 46 can be adjusted according to actual working conditions. By rotating the limiting bolt 46 to move it forward or backward in the threaded hole of the limiting block 45, the position where it abuts against the positioning block 434 is changed.

[0096] Example 10:

[0097] Reference Figure 1 The conveying assembly 2 includes two linear guide rails, which are arranged in parallel and at intervals along the conveying direction of the tray 5.

[0098] In this embodiment, two linear guide rails are spaced parallel to each other along the conveying direction of the pallet 5. They serve as the basic guiding structure for the conveying of the pallet 5 and play a vital role in ensuring the smooth conveying of the pallet 5. The guide rails are made of high-strength alloy steel, capable of bearing the weight of the pallet 5 and its contents, while maintaining excellent straightness and guiding accuracy over long-term use.

[0099] The guide rail's cross-section is designed to be rectangular, offering excellent stability and torsional resistance. High-precision guide grooves are machined into the rail's upper surface, with the sidewalls of the grooves being precisely perpendicular planes, ensuring smooth movement of the tray 5 along the rail. The rail's length is determined by the distance the tray 5 is to be transported and the overall equipment layout. Typically, the rail's length is longer than the tray's transport path to ensure stable guidance and support throughout the entire transport process.

[0100] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A bidirectional side positioning and clamping device, comprising a frame (1), and a conveying assembly (2) arranged on the frame (1) for conveying a tray (5) thereof, wherein a gap is provided in the middle of the conveying assembly (2), and is characterized in that: It also includes a first limiting component (3) disposed on one side of the conveying component (2), the first limiting component (3) being used to abut against the pallet (5) when the conveying component (2) conveys the pallet (5) to a preset position, so as to limit the pallet (5); Two second limiting components (4) are arranged at the gap of the conveying component (2). When the tray (5) is located at the preset position, the two second limiting components (4) are respectively located at the two ends of the tray (5). The two second limiting components (4) can approach the two ends of the tray (5) until they abut against the two ends of the tray (5) to fix the tray (5) on the conveying component (2).

2. The bidirectional side positioning and clamping device according to claim 1, characterized in that: The conveying assembly (2) includes a plurality of conveying wheels (21) arranged at intervals, and the conveying wheels (21) are used to convey the pallet (5); the first limiting assembly (3) includes a first cylinder (31) and a first limiting member (32), the first cylinder (31) is arranged on the conveying assembly (2), the first driving shaft (33) of the first cylinder (31) faces the conveying assembly (2), the first limiting member (32) is connected to the first driving shaft (33), and the first driving shaft (33) is used to drive the first limiting member (32) to approach the conveying wheel (21), so that the first limiting member (32) abuts against the pallet (5) conveyed by the conveying wheel (21).

3. The bidirectional side positioning and clamping device according to claim 1, characterized in that: The second limiting component (4) comprises: A mounting plate (41) is arranged at the bottom of the conveying assembly (2), with both ends of the mounting plate being fixedly connected to the bottom of the conveying assembly (2); a second cylinder (42) disposed on the mounting plate (41) and located in a gap of the conveying assembly (2); The second limiting member (43) is located on the second cylinder (42), and the second cylinder (42) can drive the second limiting member (43) to move toward the end of the tray (5).

4. The bidirectional side positioning and clamping device according to claim 3, characterized in that: The second limiting member (43) comprises: A positioning plate (431) is provided on the second cylinder (42), and the second cylinder (42) is used to drive the positioning plate (431) toward the end of the tray (5); A positioning member (433) is provided on the positioning plate (431), on which a positioning block (434) is rotatably mounted. The positioning block (434) can switch between a first position and a second position. When located at the first position, the second cylinder (42) drives the positioning plate (431) to approach the end of the tray (5), and the positioning block (434) can abut against the tray (5); when the positioning block (434) is located at the second position, the positioning block (434) is located below the tray (5), and the tray (5) can be conveyed from above the positioning block (434) to the next process along with the conveying assembly (2); The third cylinder (432) is rotatably mounted on the positioning plate (431), and the third cylinder (432) can move up and down in the vertical direction around the mounting point of the third cylinder (432) and the positioning plate (431); the third cylinder (432) includes a third drive shaft (439), and the third drive shaft (439) is connected to the positioning block (434) and is used to drive the positioning block (434) to switch between the first position and the second position.

5. The bidirectional side positioning and clamping device according to claim 4, characterized in that: Two positioning members (433) are provided, and the two positioning members (433) are relatively arranged on both sides of the mounting plate (41). A positioning block (434) is rotatably connected in each of the two positioning members (433). The second limiting member (43) further includes a swing shaft (436), and both ends of the swing shaft (436) are respectively connected to the two positioning holes. The third cylinder (432) is connected to the center of the swing shaft (436). The third cylinder (432) is used to push the swing shaft (436) to move, and is used to drive the positioning block (434) to switch between the first position and the second position.

6. The bidirectional side positioning and clamping device according to claim 5, characterized in that: The third cylinder (432) is mounted on the positioning plate (431) in an angularly rotatable manner. The second position-limiting member (43) further comprises a bearing (435). The outer ring of the bearing (435) is connected to the end of the third drive shaft (439). The swing shaft (436) passes through the inner ring of the bearing (435) and is rotatably connected to the bearing (435).

7. The bidirectional side positioning and clamping device according to claim 4, characterized in that: Pin holes are provided at both ends of the tray (5), and a pin (44) is provided on the positioning block (434). When the positioning block (434) is located at a first position and abuts against the tray (5), the pin (44) can be inserted into the pin hole.

8. The bidirectional side positioning and clamping device according to claim 4, characterized in that: The positioning member (433) is provided with a slot, and the positioning block (434) is rotatably mounted in the slot via a pin (437).

9. The bidirectional side positioning and clamping device according to claim 4, characterized in that: The second limiting assembly (4) further comprises a limiting block (45), the limiting block (45) being arranged on the positioning member (433), and a limiting bolt (46) being arranged on the limiting block (45), the limiting bolt (46) being used to abut against the positioning block (434) when the positioning block (434) moves to the second position.

10. The bidirectional side positioning and clamping device according to claim 1, wherein: The conveying assembly (2) comprises two linear guide rails, and the two linear guide rails are arranged in parallel and spaced apart along the conveying direction of the tray (5).

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