A clamping device for a coating adhesion pull-off method test apparatus

Abstract

The utility model provides a kind of clamping device for coating adhesion pull-off method test equipment, it is related to coating adhesion pull-out test technical field, including pull-out test equipment and a variety of different specifications of pull head, further including mounting bracket;The coating adhesion of the workpiece to be measured can be bilaterally pulled out test in the application, application scene is more extensive, while adjustable three-way clamping can be carried out to the pull head of different test column area, and then without producing several steel plates and the clamping groove of corresponding size can be completed clamping, the adaptation range of pull-out testing machine clamping different specifications size pull head is improved, and then the use effect of coating adhesion pull-off method test equipment is better.

Description

Technical Field

[0001] This utility model relates to the field of coating adhesion pull-out test technology, and more specifically, to a clamping device for coating adhesion pull-out test equipment. Background Technology

[0002] In the field of modern transportation materials, the application of anti-corrosion coatings is becoming increasingly widespread, and accurately assessing the adhesion of coatings has become a core step in ensuring product quality and performance.

[0003] Currently, the conventional method for testing coating adhesion is the pull-out test. Specifically, a pull-out tester is used to separate the pre-bonded pull-out head from the coating and check whether the tensile force value when the coating separates from the pull-out head meets the requirements. If it meets the requirements, it means that the coating adhesion is qualified.

[0004] Currently, single-sided pulling is generally used, which limits the application scenarios. In addition, different products, specifications, and coatings require different pull head test column areas. The current operation process is to first clamp a steel plate, and then open a slot on the steel plate that allows a pull head of a certain size to enter and fits the shape. Therefore, it is necessary to produce corresponding steel plates and slots for pull heads of different sizes. The adaptability of the pull testing machine for clamping pull heads needs to be improved. In summary, the above-mentioned problems urgently need to be addressed in the current operation of the pull-out method testing equipment. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a clamping device for a coating adhesion pull-off test equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A clamping device for a coating adhesion pull-out test includes a pull-out testing device and various pull-out heads of different specifications, as well as a mounting bracket. The synchronously operating lead screw structure is symmetrically arranged on the mounting bracket with a U-shaped main body; The mounting plate is connected to the lead screw structure, and the mounting plate is equipped with a pull-out test device; Two U-shaped rods, which are vertically aligned, are connected to the mounting frame and the pull-out test equipment, respectively. The clamping assembly is mounted on the first U-shaped rod; The limiting components are respectively set on the adjustable three-way clamping component and the first U-shaped rod, and the clamping component double-clamps the adjustable three-way clamping component that is accurately limited.

[0007] Furthermore, the clamping assembly includes a first telescopic cylinder, a clamping plate, and a rubber layer. The first telescopic cylinder is symmetrically arranged on the first U-shaped rod, and the first telescopic cylinder is connected to a clamping plate; The rubber layer is set on the clamping plate.

[0008] Furthermore, the limiting component includes an insertion roller and a slot. The insertion rollers are symmetrically arranged on the adjustable three-way clamping assembly; The slots, corresponding one-to-one with the insertion rollers, are symmetrically opened on the first U-shaped rod.

[0009] Furthermore, the adjustable three-way clamping assembly includes a fixed plate, a fixed frame, a second telescopic cylinder, clamping fingers, a movable plate, and a second U-shaped rod. A fixed frame is welded onto the fixed plate, and a second telescopic cylinder that passes through the fixed plate and is connected to the movable plate, as well as symmetrically distributed insertion rollers, are installed on the fixed frame. One end of each of the three gripper fingers is hinged to the bottom of the fixed plate, and the other end of each gripper finger is engaged with the puller head. The movable plate and the fixed plate are coaxially distributed, and three second U-shaped rods corresponding to the gripper fingers are hinged on the movable plate. The second U-shaped rods correspond to the gripper fingers and are hinged.

[0010] Furthermore, the fixing frame is symmetrically provided with receiving slots that allow the clamping plates on both sides to enter and whose length and width dimensions are consistent with those of the clamping plates.

[0011] Furthermore, the end gripping area of ​​the finger clamp is provided with a rubber pad.

[0012] Furthermore, the lead screw structure is equipped with a bellows-shaped protective cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Compared with existing technologies, this application can perform bilateral pull-out tests on the coating adhesion of the workpiece, which has a wider range of applications. At the same time, it can perform adjustable three-way clamping for pull-out heads with different test column areas, so that clamping can be completed without producing several steel plates and corresponding sized slots. The adaptability range of the pull-out testing machine for clamping pull-out heads of different specifications and sizes is improved, thus making the coating adhesion pull-out test equipment more effective. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Enlarged view of section A (labeled A); Figure 3 Diagram of the slot; Figure label: 1. Mounting frame; 2. Lead screw structure; 3. Mounting plate; 4. Pull-out test equipment; 5. First U-shaped rod; 51. Slot; 6. Clamping assembly; 61. First telescopic cylinder; 62. Clamping plate; 63. Rubber layer; 7. Adjustable three-way clamping assembly; 71. Insert roller; 701. Fixing plate; 702. Fixing frame; 703. Second telescopic cylinder; 704. Clamping finger; 705. Movable plate; 706. Second U-shaped rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. 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 scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figures 1 to 3 As shown, a clamping device for a coating adhesion pull-out test includes a pull-out test device 4 and various pull-out heads of different specifications (pulling heads are not shown in the figure and are considered prior art and will not be improved). It also includes a mounting frame 1, a lead screw structure 2, a mounting plate 3, a first U-shaped rod 5, a clamping assembly 6, a limiting assembly, and an adjustable three-way clamping assembly 7. The synchronously operating lead screw structure 2 is symmetrically arranged on the mounting bracket 1, which has a U-shaped main body; Mounting plate 3 is connected to lead screw structure 2, and a pull-out test device 4 is provided on mounting plate 3 (lead screw structure 2 is existing technology and will not be improved. It consists of a servo motor, lead screw and slide rail. The lead screws on both sides are threaded to mounting plate 3, and the slide rails on both sides are slidably engaged with mounting plate 3. It can convert rotational motion into linear motion, thereby enabling the upper adjustable three-way clamping assembly 7 to move away from or closer to the lower adjustable three-way clamping assembly 7). Two first U-shaped rods 5, which are vertically opposite each other, are connected to the mounting frame 1 and the pull-out test equipment 4, respectively. Clamping assembly 6 is mounted on the first U-shaped rod 5; The limiting components are respectively set on the adjustable three-way clamping component 7 and the first U-shaped rod 5, and the clamping component 6 clamps the adjustable three-way clamping component 7, which is accurately limited, twice.

[0016] In order to protect the lead screw structure 2 from contaminants such as dust and metal shavings, and to prevent particles from accelerating the wear of the lead screw structure 2 and causing a decrease in accuracy, the above embodiment is further optimized by providing a bellows-shaped protective cover on the lead screw structure 2 (the bellows-shaped protective cover is not shown in the figure, belongs to the prior art, and its installation method is not described).

[0017] Specific implementation of this utility model solution, such as Figure 1 and Figure 3 As shown, the clamping assembly 6 includes a first telescopic cylinder 61, a clamping plate 62, and a rubber layer 63. The first telescopic cylinder 61 is symmetrically arranged on the first U-shaped rod 5, and the first telescopic cylinder 61 is connected to the clamping plate 62; Rubber layer 63 is disposed on clamping plate 62; To further improve the clamping stability of the adjustable three-way clamping assembly 7 and avoid slippage between the clamping plate 62 and the surface of the fixing frame 702, the above embodiment is further optimized by providing symmetrically symmetrical receiving grooves (not shown in the figure) on the fixing frame 702, which allow the clamping plates 62 on both sides to enter and have the same length and width dimensions as the clamping plates 62.

[0018] Specific implementation of this utility model solution, such as Figure 1 and Figure 3 As shown, the limiting assembly includes an insertion roller 71 and a slot 51. The insertion rollers 71 are symmetrically arranged on the adjustable three-way clamping assembly 7; The slots 51, which correspond one-to-one with the insertion rollers 71, are symmetrically opened on the first U-shaped rod 5.

[0019] Specific implementation of this utility model solution, such as Figure 1 and Figure 2 As shown, the adjustable three-way clamping assembly 7 includes a fixed plate 701, a fixed frame 702, a second telescopic cylinder 703, a clamping finger 704, a movable plate 705, and a second U-shaped rod 706. A fixed frame 702 is welded onto the fixed plate 701. The fixed frame 702 is provided with a second telescopic cylinder 703 that passes through the fixed plate 701 and is connected to the movable plate 705, as well as symmetrically distributed insert rollers 71. One end of each of the three clip fingers 704 is hinged to the bottom of the fixed plate 701, and the other end of the clip fingers 704 is engaged with the pull head; The movable plate 705 and the fixed plate 701 are coaxially distributed, and three second U-shaped rods 706 corresponding one-to-one with the clamping fingers 704 are hinged on the movable plate 705. The second U-shaped rods 706 correspond one-to-one with the clamping fingers 704 and are hinged. To further improve the stability of the pull-out head after clamping, the above embodiment is further optimized by providing a rubber pad (not shown in the figure) at the end clamping area of ​​the clamping finger 704. The rubber pad is used to further reduce the probability of slippage or deflection during the clamping of the pull-out head.

[0020] It should be noted that the lead screw structure, the pull-out test equipment, the first telescopic cylinder, and the second telescopic cylinder are all electrically connected to the controller, which is shown in the figure without a number.

[0021] The working process of this utility model is as follows: First, align the insertion roller 71 with the slot 51 to achieve accurate docking of the adjustable three-way clamping assembly 7 and the first U-shaped rod 5 (this ensures that the upper and lower sets of adjustable three-way clamping assemblies 7 are aligned after installation, avoiding frequent alignment adjustments). After docking, the clamping assembly 6 is operated by the controller to complete the double clamping limit of the adjustable three-way clamping assembly 7. On the basis of clamping, the rubber layer 63 can reduce wear and increase friction to improve the stability after clamping. During this process, two people complete the docking of the adjustable three-way clamping assembly 7 at different positions, and after docking, they simultaneously and firmly clamp the two sets of adjustable three-way clamping assemblies 7. The drawing heads, with the coatings on both sides of the workpiece to be tested already bonded and aligned, are then placed within the clamping range of the two sets of adjustable three-way clamping components 7. At this point, the workpiece to be tested needs to be kept horizontal. The controller then controls the operation of the lead screw structure 2, causing the upper adjustable three-way clamping component 7 to move down to a pre-set range. Then, the controller controls the two second telescopic cylinders 703 to retract synchronously, thus achieving synchronous clamping of the two drawing heads on both sides of the workpiece to be tested. Since the telescopic range of the second telescopic cylinder 703 is variable, it can clamp and limit the drawing heads of different specifications and sizes. At the same time, since it is a three-jaw clamping, the drawing heads are less likely to shift position. The rubber pads arranged in the clamping area at the end of the clamping fingers 704 can reduce the probability of slippage or skew during the clamping of the drawing heads, and at the same time reduce the wear on the surface of the drawing heads. After the two pull heads are stably clamped, the controller controls the operation of the lead screw structure 2 to move the upper adjustable three-way clamping assembly 7 upward. At this time, the pull-out test can be carried out. When the pulling force is within the preset value range and the pull head separates from the coating, the adhesion of the coating on the surface of the workpiece to be tested meets the requirements (otherwise it is unqualified). The significance of the separate design of the adjustable three-way clamping assembly 7 and the first U-shaped rod 5 is that the adjustable three-way clamping assembly 7 can be easily disassembled for component maintenance or replacement in the future.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a coating adhesion pull-out test apparatus, comprising a pull-out test apparatus (4) and pull-out heads of various specifications, characterized in that, It also includes a mounting bracket (1). The synchronously operating lead screw structure (2) is symmetrically set on the mounting bracket (1) with a U-shaped main body; The mounting plate (3) is connected to the lead screw structure (2), and a pull-out test device (4) is provided on the mounting plate (3). Two first U-shaped rods (5) that are vertically opposite each other are connected to the mounting frame (1) and the pull-out test equipment (4), respectively; The clamping assembly (6) is mounted on the first U-shaped rod (5); The limiting components are respectively set on the adjustable three-way clamping component (7) and the first U-shaped rod (5), and the clamping component (6) double-clamps the adjustable three-way clamping component (7) which is accurately limited.

2. The clamping device for a coating adhesion pull-off test apparatus according to claim 1, characterized in that, The clamping assembly (6) includes a first telescopic cylinder (61), a clamping plate (62), and a rubber layer (63). The first telescopic cylinder (61) is symmetrically arranged on the first U-shaped rod (5), and the first telescopic cylinder (61) is connected to a clamping plate (62). The rubber layer (63) is placed on the clamping plate (62).

3. The clamping device for a coating adhesion pull-off test apparatus according to claim 1, characterized in that, The limiting assembly includes a roller (71) and a slot (51). Insertion rollers (71) are symmetrically arranged on the adjustable three-way clamping assembly (7); The slots (51) corresponding one-to-one with the insert rollers (71) are symmetrically opened on the first U-shaped rod (5).

4. The clamping device for a coating adhesion pull-off test apparatus according to claim 2, characterized in that, The adjustable three-way clamping assembly (7) includes a fixed plate (701), a fixed frame (702), a second telescopic cylinder (703), a clamping finger (704), a movable plate (705), and a second U-shaped rod (706). A fixed frame (702) is welded onto the fixed plate (701). The fixed frame (702) is provided with a second telescopic cylinder (703) that passes through the fixed plate (701) and is connected to the movable plate (705), as well as symmetrically distributed insert rollers (71). One end of each of the three clips (704) is hinged to the bottom of the fixed plate (701), and the other end of the clips (704) is engaged with the pull head; The movable plate (705) and the fixed plate (701) are coaxially distributed, and three second U-shaped rods (706) corresponding to the clamping fingers (704) are hinged on the movable plate (705). The second U-shaped rods (706) correspond to the clamping fingers (704) and are hinged.

5. The clamping device for a coating adhesion pull-off test apparatus according to claim 4, characterized in that, The fixing frame (702) is symmetrically provided with receiving grooves that allow the clamping plates (62) on both sides to enter and have the same length and width dimensions as the clamping plates (62).

6. The clamping device for a coating adhesion pull-off test apparatus according to claim 4, characterized in that, The end gripping area of ​​the clamping finger (704) is provided with a rubber pad.

7. The clamping device for a coating adhesion pull-off test apparatus according to claim 1, characterized in that, The lead screw structure (2) is equipped with a bellows protective cover.

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