A cooler bolt anti-loose tightening device

Abstract

The utility model relates to cooler detection technical field especially is a kind of cooler anti bolt leak tightening device, including main body shell and several fixed torque wrench, the inside of the main body shell is provided with installation space, and PLC controller is installed in installation space, the upper end of the main body shell is provided with detection mesa, the upper end of the detection mesa is provided with the bolt leak tightening detection piece of movable adjustment, the lower end of the detection piece is provided with support frame, and support frame is fixedly connected between detection mesa, the utility model overcomes the over-reliance of traditional assembly work to operator personal hand feeling and auditory judgement, by using the fixed torque wrench of electric signal output and with PLC system linkage, can be automatically identified and recorded result when bolt is tightened to specified torque, completely avoid the torque misjudgment problem caused by environmental interference or human fatigue, prevent the occurrence of torque deficiency or over-tightening phenomenon, improve assembly quality.

Description

Technical Field

[0001] This utility model relates to the field of cooler testing technology, specifically a device for preventing bolts from being left loose in coolers. Background Technology

[0002] In the traditional assembly process of coolers, operators usually first use a pneumatic wrench to pre-tighten the mounting bolts, and then use a regular torque wrench to tighten them one by one to the specified torque value.

[0003] However, existing methods heavily rely on the operator's personal experience and subjective judgment. On the one hand, torque wrenches only indicate the torque has been reached through a "click" sound or tactile feedback, making them prone to misjudgment or omission in noisy environments or when operators are fatigued. On the other hand, due to the lack of real-time feedback and effective error prevention mechanisms, tightening often stops before the target torque is reached, or over-tightens even after the target torque has been reached, severely affecting assembly quality and connection reliability. Furthermore, traditional operating methods cannot systematically ensure that bolts are tightened in a preset sequence and cannot effectively identify and prevent the omission of individual bolts, resulting in quality risks and a lack of consistency.

[0004] Therefore, a device to prevent bolts from being left loose in the cooler is needed to improve the above-mentioned problem. Utility Model Content

[0005] The purpose of this invention is to provide a device for preventing bolts from being left loose in a cooler, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A device for preventing bolts from being missed during tightening in a cooler includes a main housing and several torque wrenches. The main housing has an internal installation space, in which a PLC controller is installed. A detection platform is provided at the upper end of the main housing, and a movable and adjustable bolt miss-tightening detection element is provided at the upper end of the detection platform. A support frame is provided at the lower end of the detection element, and the support frame is fixedly connected to the detection platform. The bolt miss-tightening detection element has several bolt detection positions, and several torque wrenches are set corresponding to several bolt detection positions. Each torque wrench is electrically connected to the PLC controller. The support frame has several support rods on one side for placing the cooler, and the testing platform is also provided with several locking structures for locking the cooler to be tested.

[0007] As a preferred embodiment of this utility model, the support frame includes several connecting rods fixedly connected to the testing platform, and the upper ends of the several connecting rods are connected to a mounting plate, and a set of slide rails are provided on the upper surface of the mounting plate.

[0008] As a preferred embodiment of this utility model, the movable and adjustable bolt loosening detection component includes a cylinder. The cylinder is fixedly mounted on the upper surface of the mounting plate via a mounting base. The output end of the cylinder passes through the mounting base and is mated with the detection plate. Bolt detection positions are distributed on the side of the detection plate, and a reflective photoelectric sensor is installed on the side of each bolt detection position.

[0009] As a preferred embodiment of this utility model, the lower surface of the reflective photoelectric sensor is provided with a base that is slidably connected to the slide rail, and the detection plate is adjusted horizontally by the output end of the cylinder to detect the cooler.

[0010] As a preferred embodiment of this utility model, the testing platform has several openings, and the locking structure is installed inside the openings.

[0011] As a preferred embodiment of this utility model, the opening includes a locking cylinder and a fixing seat. The fixing seat is fixedly mounted on the upper surface of the testing platform by screws. A locking head is hinged to the upper end of the fixing seat, and an actuating end is hinged to one end of the locking head. The actuating end is engaged with the output end of the locking cylinder.

[0012] As a preferred embodiment of this utility model, the upper surface of the testing platform is further provided with several positioning components to ensure the stable placement of the cooler.

[0013] As a preferred embodiment of this utility model, a protective frame is installed on one side of the upper end of the testing platform, and foot supports are connected to all four sides of the lower surface of the main body shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention overcomes the over-reliance on the operator's personal touch and auditory judgment in traditional assembly work. By using a torque-controlled wrench that can output electrical signals and linking it with a PLC system, it can automatically identify and record the result when the bolt is tightened to the specified torque, completely avoiding the problem of torque misjudgment caused by environmental interference or human fatigue, preventing the occurrence of insufficient torque or over-tightening, and improving assembly quality. This invention uses a reflective photoelectric sensor to detect and locate the tightening position of each bolt. Combined with the logic control of the PLC system and the real-time guidance of the display screen, it achieves strict standardization of the work sequence and tracks the completed processes, ensuring that all bolts are accurately tightened in the preset order. It can also identify and prompt for missed tightening in real time, solving the problems of disordered sequence and missing individual bolts in traditional operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the workpiece clamping state of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Testing platform; 2. Foot support; 3. Protective frame; 4. Testing plate; 5. Cooler; 6. Main body shell; 7. Connecting rod; 8. Support rod; 9. Positioning component; 10. Mounting plate; 11. Reflective photoelectric sensor; 12. Cylinder; 13. Mounting base; 14. Slide rail; 15. Actuating end; 16. Fixed base; 17. Locking head; 18. Opening; 19. Locking cylinder. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please see Figure 1-4 This utility model provides a technical solution: For an example, please refer to... Figure 1 , 2 3 and 4, a cooling device for preventing bolt leakage tightening, includes a main housing 6 and several torque wrenches. The main housing 6 has an installation space inside for installing a PLC controller and other electrical components. The upper end of the main housing 6 is provided with a test platform 1, which serves as the working platform for the entire device and is used to place and fix the cooling device 5 to be tested.

[0022] The upper end of the testing platform 1 is provided with a movable and adjustable bolt loosening test piece. The test piece is fixed above the testing platform 1 by a support frame. The support frame includes several connecting rods 7 that are fixedly connected to the testing platform 1. The upper ends of the connecting rods 7 are connected to a mounting plate 10. The upper surface of the mounting plate 10 is provided with a set of slide rails 14 for guiding the movement of the test plate 4.

[0023] Please refer to Figure 1 , 2 3 and 4, the movable and adjustable bolt loosening detection component includes a cylinder 12. The cylinder 12 is fixedly mounted on the upper surface of the mounting plate 10 via a mounting base 13. The output end of the cylinder 12 passes through the mounting base 13 and docks with the detection plate 4, which is used to drive the detection plate 4 to move horizontally along the slide rail 14. Several bolt detection positions are distributed on the side of the detection plate 4. A reflective photoelectric sensor 11 is installed on the side of each bolt detection position. A base that cooperates with the slide rail 14 is provided on the lower surface of the reflective photoelectric sensor 11, so that the entire detection plate 4 can move smoothly under the drive of the cylinder 12.

[0024] Several support rods 8 are provided on one side of the support frame for placing the cooler 5. Several locking structures are also provided on the testing platform 1 to fix the cooler 5 during the testing process and prevent it from moving. Several openings 18 are provided on the testing platform 1, and the locking structures are installed inside the openings 18. Each locking structure includes a locking cylinder 19 and a fixing seat 16. The fixing seat 16 is fixed to the upper surface of the testing platform 1 by screws. A locking head 17 is hinged to the upper end of the fixing seat 16. One end of the locking head 17 is hinged to the actuating end 15. The actuating end 15 is engaged with the output end of the slide rail 14. When the locking cylinder 19 is activated, it pushes the actuating end 15, causing the locking head 17 to press against the cooler 5, thereby locking it.

[0025] Please refer to Figure 2 and 3 The upper surface of the testing platform 1 is also equipped with several positioning components 9 to ensure the stability of the cooler 5 when placed. A protective frame 3 is installed on one side of the upper end of the testing platform 1. The lower surface of the main body shell 6 is connected to feet 2 on all four sides to stably support the entire device.

[0026] Working principle: During use, the operator places the cooler 5 on the support rod 8 and ensures its accurate position using the positioning component 9. Then, the locking mechanism is activated, and the locking cylinder 19 pushes the actuating end 15, causing the locking head 17 to press against the cooler 5, preventing it from moving during testing. Next, the cylinder 12 drives the detection plate 4 to move along the slide rail 14, aligning the bolt detection positions on the detection plate 4 with the bolt holes on the cooler 5.

[0027] Each bolt is tightened sequentially using a torque wrench. A reflective photoelectric sensor 11 detects the position of the wrench's screwdriver head. When the wrench reaches the designated bolt detection position, the sensor transmits a signal to the PLC controller. The torque wrench generates an electrical signal when it reaches the specified torque, which is also transmitted to the PLC controller. The PLC controller determines whether the bolt is properly tightened based on the received signal and records the tightening sequence. If a bolt is not tightened in sequence or does not reach the specified torque, the PLC controller will display an error message on the screen and stop subsequent operations until the problem is resolved.

[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 device for preventing bolt leakage during tightening in a cooler, comprising a main housing (6) and a plurality of torque wrenches, wherein the main housing (6) has an installation space inside, a PLC controller is installed in the installation space, and a detection platform (1) is provided at the upper end of the main housing (6), characterized in that: The upper end of the test table (1) is provided with a movable and adjustable bolt loose tightening detection component, and the lower end of the detection component is provided with a support frame. The support frame is fixedly connected to the test table (1). The bolt loose tightening detection component has several bolt detection positions. Several torque wrenches are set to correspond to several bolt detection positions, and each torque wrench is electrically connected to the PLC controller. The support frame is provided with several support rods (8) for placing the cooler (5) on one side, and the test table (1) is also provided with several locking structures for locking the cooler (5) to be tested.

2. The anti-loosening bolt device for coolers according to claim 1, characterized in that: The support frame includes several connecting rods (7) that are fixedly connected to the testing table (1). The upper ends of the several connecting rods (7) are connected to a mounting plate (10). A set of slide rails (14) are provided on the upper surface of the mounting plate (10).

3. The cooler anti-loosening bolt tightening device according to claim 2, characterized in that: The movable and adjustable bolt loosening detection component includes a cylinder (12), which is fixedly installed on the upper surface of the mounting plate (10) via a mounting base (13). The output end of the cylinder (12) passes through the mounting base (13) and is mated with the detection plate (4). The bolt detection positions are distributed on the side of the detection plate (4), and a reflective photoelectric sensor (11) is installed on the side of each bolt detection position.

4. The cooler anti-loosening bolt tightening device according to claim 3, characterized in that: The lower surface of the reflective photoelectric sensor (11) is provided with a base that is slidably connected to the slide rail (14). The detection plate (4) moves horizontally under the action of the output end of the cylinder (12) to detect the cooler (5).

5. The cooler anti-loosening bolt tightening device according to any one of claims 1-4, characterized in that: The testing platform (1) has several openings (18), and the locking structure is installed inside the openings (18).

6. The cooler anti-loosening bolt tightening device according to claim 5, characterized in that: The opening (18) includes a locking cylinder (19) and a fixed seat (16). The fixed seat (16) is fixedly mounted on the upper surface of the testing table (1) by screws. A locking head (17) is hinged to the upper end of the fixed seat (16), and an actuating end (15) is hinged to one end of the locking head (17). The actuating end (15) is connected to the output end of the locking cylinder (19).

7. The cooler anti-loosening bolt tightening device according to claim 6, characterized in that: The upper surface of the testing platform (1) is also provided with several positioning parts (9) to ensure the stable placement of the cooler (5).

8. The cooler anti-loosening bolt tightening device according to claim 7, characterized in that: A protective frame (3) is installed on one side of the upper end of the testing platform (1), and foot supports (2) are connected to the lower surface of the main body shell (6).

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