Auxiliary device for testing adhesiveness of zinc layer

Abstract

The utility model relates to an auxiliary device for testing adhesiveness of a zinc layer. The auxiliary device comprises a base, a supporting rod, a power mechanism and a conveying mechanism, a flattening assembly, an upper die and a lower die; the power mechanism is arranged over the base, and the power mechanism is fixedly connected with the base through a supporting rod. Output rods are arranged on the front and rear sides of the bottom of the power mechanism; the conveying mechanisms are arranged on the left and right sides of the upper surface of the base. One end of the flattening assembly is fixedly connected with a front output rod at the bottom of the power mechanism, and the other end is fixedly connected with the front side of the upper surface of the base; the top of the upper die is coaxially and fixedly connected with a rear output rod of the bottom of the power mechanism through a connecting rod. The lower die is fixedly connected with the rear side of the upper surface of the base and corresponds to the longitudinal position of the upper die; the upper die is of a V-shaped structure, and a V-shaped groove corresponding to the upper die is correspondingly formed in the middle of the upper end of the lower die. The device can effectively solve the problems that in the prior art, when plating layers with different thicknesses and strengths are measured, operation is complex, and detection accuracy and precision cannot be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of coating detection technology, and in particular to an auxiliary device for testing the adhesion of zinc coatings. Background Technology

[0002] Automobiles are a vital means of transportation in our lives, and coating products are widely used in their manufacturing to enhance corrosion resistance. The demand for lightweight automotive steel has driven the development of coating products towards higher strength, better formability, and greater corrosion resistance. The formability and damage resistance of coatings largely depend on their adhesion to the steel substrate. Therefore, to improve the adhesion of coatings used in automobiles and optimize the annealing process, it is necessary to test the coating adhesion of the products.

[0003] A search revealed that Chinese Patent CN219122009U discloses a device for testing the adhesion of galvanized coatings on galvanized parts, comprising a conveying device and a hammer. The galvanized parts on the conveying device are bent by being struck by the hammer. The device is characterized in that the conveying surface of the conveying device has a reserved gap extending along the conveying direction, and the hammer corresponds to the reserved gap. This invention uses a conveying device with a reserved gap as the hammer bearing, providing sufficient space for the bending of the galvanized parts, thus preventing jamming and facilitating the conveying and unloading of the galvanized parts.

[0004] While the aforementioned prior art facilitates the conveying and unloading of galvanized parts, it requires the use of a heavy hammer for impact. To perform coating adhesion testing at different bending angles, the hammer head needs to be replaced with a screwdriver or similar tool. Furthermore, the hammering speed and force are uncontrollable. When the coating processes of the products are consistent, but the thickness and strength are inconsistent, the accuracy and precision of the coating adhesion test cannot be guaranteed. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this invention is to provide an auxiliary device for testing zinc coating adhesion, aiming to improve the existing technology's problems such as complex operation and inability to guarantee accuracy and precision when measuring coatings of different thicknesses and strengths.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This utility model discloses an auxiliary device for testing zinc coating adhesion, comprising a base, support rods, a power mechanism, a conveying mechanism, a flattening assembly, an upper mold, and a lower mold. The power mechanism is positioned directly above the base, and is fixedly connected to the four corners of the base via vertical support rods. Output rods are respectively provided on the front and rear sides of the bottom of the power mechanism. The conveying mechanism is respectively positioned on the left and right sides of the upper surface of the base. One end of the flattening assembly is fixedly connected to the front output rod at the bottom of the power mechanism, and the other end is fixedly connected to the front side of the upper surface of the base. The top of the upper mold is coaxially fixedly connected to the rear output rod at the bottom of the power mechanism via a connecting rod. The lower mold is fixedly connected to the rear side of the upper surface of the base and corresponds to the longitudinal position of the upper mold. The upper mold has a V-shaped structure, and the upper middle part of the lower mold has a corresponding V-shaped groove.

[0008] Furthermore, the flattening assembly includes a pressure rod, a pressure plate, and a support plate; the pressure rod is coaxially fixed to the output rod at the front bottom of the power mechanism; the middle of the upper surface of the pressure plate is fixed to the bottom end of the pressure rod; the support plate is fixed to the front side of the upper surface of the base and corresponds to the longitudinal position of the pressure plate.

[0009] Furthermore, guide plates are provided between the output rods on both sides of the bottom of the power mechanism and the four corner support rods.

[0010] Furthermore, the top of the upper mold and the bottom of the connecting rod are connected by a snap-fit ​​assembly I.

[0011] Furthermore, the snap-fit ​​assembly I includes a concave connecting plate, a J-shaped snap-fit ​​block, an insert plate, and a spring I; the concave connecting plate is fixedly connected to the bottom end of the connecting rod with its opening facing downwards; the J-shaped snap-fit ​​blocks are respectively arranged horizontally on the left and right sides of the top of the concave connecting plate with their curved sides facing downwards and are symmetrical to each other; the horizontal side of the J-shaped snap-fit ​​block is slidably connected to the concave connecting plate, and a spring I is provided between its horizontal inner end and the inside of the concave connecting plate; the insert plate is fixedly connected between the middle of the inner walls of the front and rear sides of the concave connecting plate; the top center of the upper mold has a slot corresponding to the insert plate; the upper left and right sides of the upper mold have snap-fit ​​holes corresponding to the J-shaped snap-fit ​​blocks on both sides.

[0012] Furthermore, the lower mold is connected to the upper surface of the base via snap-fit ​​assembly II.

[0013] Furthermore, the snap-fit ​​assembly II includes a fixing block, a snap-fit ​​block, a spring II, and a positioning block; the positioning block is fixedly connected to the middle of the front and rear sides of the fixing block respectively; the snap-fit ​​blocks are slidably connected to the front and rear ends of the left side region of the fixing block and the front and rear ends of the right side region of the fixing block respectively, and the front and rear snap-fit ​​blocks in the left side region are connected by spring II, and the front and rear snap-fit ​​blocks in the right side region are connected by spring II; the lower end face of the lower mold has slots corresponding to the shape and position of the fixing block, the snap-fit ​​block, and the positioning block respectively.

[0014] Furthermore, positioning components are provided in the lower regions on both sides of the V-groove; the positioning components include sliders, magnets, and baffles; the baffles are respectively and symmetrically arranged in the lower regions on both sides of the V-groove; sliders are fixedly connected to the bottom outer side of the baffles; vertical grooves are opened on both sides of the lower mold at positions corresponding to the baffles and sliders; the sliders can drive the baffles to slide up and down within a fixed distance; magnets are provided on the upper surface of the sliders, and the lower molds are correspondingly made of metal.

[0015] Furthermore, the lower end of the J-shaped card block corresponding to the curved side of the upper mold is set as an inclined surface.

[0016] Furthermore, the surface of the snap-fit ​​block corresponding to the lower mold is set as an arc surface.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can support the workpiece by setting up upper and lower molds, which allows for adjustment of the hammering speed and force, increases the detection accuracy of the overall device, and makes it quick to replace the upper and lower molds, thus increasing the ease of operation of the device.

[0019] 2. This utility model uses a baffle to position the upper mold, and then the connecting rod slides down to facilitate quick and easy snap-fit ​​installation of the upper mold. The connecting rod can also be slid down further to test the stability of the upper and lower molds, reducing replacement steps and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the front structure;

[0022] Figure 3 This is a structural diagram of the positioning component;

[0023] Figure 4 This is a schematic diagram of the structure of the lower mold and the snap-fit ​​assembly II;

[0024] Figure 5 This is a schematic diagram of the upper mold and the snap-fit ​​assembly I.

[0025] In the attached drawings, the reference numerals are as follows: 1-base; 2-guide plate; 3-transfer mechanism; 4-pressure plate; 41-pressure rod; 5-support plate; 6-connecting rod; 7-upper mold; 71-slot; 72-slot hole; 8-lower mold; 81-slot groove; 9-fixing block; 10-J-type locking block; 11-slider; 12-magnet; 13-baffle; 14-locking block; 15-spring II; 16-positioning block; 17-spring I; 18-support rod; 19-power mechanism; 20-concave connecting plate; 21-insertion plate. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0028] See appendix Figure 1-2 The present invention proposes an auxiliary device for testing zinc coating adhesion, comprising a base 1, a flattening assembly, a connecting rod 6, an upper mold 7, a lower mold 8, a support rod 18, and a power mechanism 19.

[0029] The power mechanism 19 is positioned at a certain distance above the base 1, and its bottom is fixed to the four corners of the top of the base 1 via vertical support rods 18. Output rods are respectively located on the front and rear sides of the bottom of the power mechanism 19, and the power mechanism 19 can use a hydraulic cylinder or other power output method. The transmission mechanism 3 is symmetrically located on the left and right sides of the upper surface of the base 1, and can use a synchronous pulley and synchronous belt for transmission. One end of the flattening assembly is fixed to the output rod at the center of the front side of the bottom of the power mechanism 19, and the other end is fixed to the corresponding position at the center of the front side of the upper surface of the base 1. The top of the upper mold 7 is coaxially fixed to the output rod at the center of the rear side of the bottom of the power mechanism 19 via a connecting rod 6. The lower mold 8 is fixed to the center of the rear side of the upper surface of the base 1, and the lower mold 8 corresponds longitudinally to the upper mold 7. The upper mold 7 has a V-shaped structure, and a corresponding V-shaped groove is opened in the center of the upper surface of the lower mold 8.

[0030] The upper mold 7 can hammer the workpiece to make it bend, and the V-groove of the lower mold 8 can support the workpiece so that it can bend to a predetermined angle. Furthermore, by controlling different hammering speeds and forces, it can adapt to coatings of different thicknesses and strengths, thereby increasing the accuracy of subsequent inspections.

[0031] The flattening assembly includes a pressure plate 4, a pressure rod 41, and a support plate 5. The pressure rod 41 is coaxially fixed to the output rod at the center of the front side of the bottom of the power mechanism 19. The center of the upper surface of the pressure plate 4 is fixed to the bottom end of the pressure rod 41. The support plate 5 is fixed to the center of the front side of the upper surface of the base, and the longitudinal position of the support plate 5 corresponds to that of the pressure plate 4. The pressure plate 4 can flatten the workpiece by moving it down, and the support plate 5 can support the workpiece so that it can be pressed into a horizontal state and no longer bend. Then, the adhesion of the coating on the bent part can be inspected.

[0032] In this embodiment, a guide plate 2 is provided between the output rods on both sides of the bottom of the power mechanism 19 and the four corner support rods 18, which is used to guide and limit the up and down movement of the pressure rod 41 and the connecting rod 6.

[0033] In this embodiment, the top of the upper mold 7 and the bottom of the connecting rod 6 are connected by a snap-fit ​​assembly I.

[0034] Specifically, the snap-fit ​​assembly I includes a J-shaped snap-fit ​​block 10, a spring 117, a concave connecting plate 20, and an insert plate 21. The concave connecting plate 20 has its opening facing downwards, and its top surface is fixedly connected to the bottom end of the connecting rod 6. The J-shaped snap-fit ​​blocks 10 are horizontally arranged on the left and right sides of the top of the concave connecting plate 20 with their curved sides facing downwards, and are symmetrical to each other. The horizontal side of the J-shaped snap-fit ​​block 10 is horizontally slidably connected to the concave connecting plate 20, and its horizontal inner end is connected to the interior of the concave connecting plate 10 by a spring 117. The insert plate 21 is fixedly connected between the middle of the inner walls of the front and rear sides of the concave connecting plate 20. The upper mold 7 has a slot 71 corresponding to the insert plate 21 in the middle of its top end. The upper left and right sides of the upper mold 7 have snap-fit ​​holes 72 corresponding to the curved sides of the J-shaped snap-fit ​​blocks 10. The lower end of the curved side of the J-shaped snap-fit ​​block 10 corresponding to the upper mold 7 is set as an inclined surface to facilitate snap-fit ​​with the snap-fit ​​hole 72. Pulling the J-shaped blocks 10 outwards allows them to engage with the locking holes 72 on both sides. Under the contraction force of the spring I17, the engagement is stable. At the same time, the insert plate 21 is inserted into the corresponding slot 71, thus completing the connection between the connecting rod 6 and the upper mold 7.

[0035] In this embodiment, the lower mold is connected to the upper surface of the base via snap-fit ​​assembly II.

[0036] Specifically, the snap-fit ​​assembly II includes a fixing block 9, a snap-fit ​​block 14, a spring II15, and a positioning block 16; the fixing block 9 is fixedly connected to the corresponding position in the middle of the rear side of the upper surface of the base 1; the positioning blocks 16 are fixedly connected to the middle of the front and rear sides of the fixing block 9 respectively; the snap-fit ​​blocks 14 are slidably connected to the front and rear ends of the left side region of the fixing block 9, and the snap-fit ​​blocks 14 are also slidably connected to the front and rear ends of the right side region of the fixing block 9 respectively; and the two snap-fit ​​blocks 14 in the left side region of the fixing block 9 are connected by spring II15, and the two snap-fit ​​blocks 14 in the right side region of the fixing block 9 are also connected by spring II15; the snap-fit ​​blocks 14 can enter the interior of the fixing block 9 under horizontal extrusion pressure, and can extend out of the fixing block 9 under the action of spring II15 when there is no external extrusion; the lower end face of the lower mold 8 has a slot 81 corresponding to the shape and position of the fixing block 9, the snap-fit ​​block 14, and the positioning block 16 respectively. The surface of the snap-fit ​​block 14 corresponding to the lower mold 8 is set as an arc surface to facilitate snap-fit ​​with the slot 81. After the snap-fit ​​block 14 is pressed inward, the fixing block 9, snap-fit ​​block 14 and positioning block 16 can enter the slot 81. Then, under the action of the spring II15, the snap-fit ​​blocks 14 on both sides can be pushed out and snap-fit ​​with the slot 81, which can prevent the lower mold 8 from moving back and forth or up and down. At the same time, under the action of the positioning block 16, the lower mold 8 can be prevented from moving left and right, ensuring that the lower mold 8 is fixed on the base 1.

[0037] In this embodiment, positioning components are provided in the lower regions of the front and rear sides of the V-groove of the lower mold.

[0038] Specifically, the positioning assembly includes a slider 11, a magnet 12, and a baffle 13. The baffles 13 are respectively and symmetrically arranged in the lower regions of the front and rear sides of the V-groove. The sliders 11 are fixedly connected to the outer bottom of the baffles 13. Vertical grooves are opened in the middle of the front and rear sides of the lower mold 8 at positions corresponding to the baffles 13 and sliders 11, so that the sliders 11 can drive the baffles 13 to slide up and down within a fixed distance. The upper end face of the slider 11 is provided with a magnet 12, and the lower mold 8 is made of metal. When the slider 11 slides upward to the top of the groove, the magnet 12 can be attracted to the top wall of the groove, thereby keeping the baffles 13 in a fixed position and preventing them from sliding down. The baffles 13 can limit the upper mold 7 to prevent it from sliding horizontally after entering the V-groove of the lower mold 8.

[0039] The working principle of this utility model is as follows:

[0040] When inspecting workpieces that need to be bent at different angles, first press down the lower mold 8 so that the fixing block 9 can slide into the lower end of the lower mold 8. At this time, the upper arc surface of the locking block 14 is pressed into the fixing block 9 by the lower mold 8 and presses the spring II 15. The positioning block 16 slides into the lower end of the lower mold 8. When the lower part of the lower mold 8 contacts the upper part of the base 1, the sliding stops. At this time, the locking block 14 slides into the lower mold 8 under the rebound force of the spring II 15, keeping the lower mold 8 in a fixed position. Then, the upper mold 7 is placed in the V-groove. Then, the sliders 11 at both ends are slid up. The upward sliding of the sliders 11 can drive the baffle 13 to slide up. The upward sliding of the baffle 13 and the slider 11 drives the magnet 12 to slide up at the same time until the magnet 12 contacts the inner wall of the groove of the lower mold 8. Keep it fixed, then start the power mechanism 19. The power mechanism 19 drives the connecting rod 6 at the lower end to move down. When the lower inclined surface of the J-shaped block 10 is squeezed by the upper mold 7 and pulled to both ends, the spring I17 is pulled. The J-shaped block 10 slides into the card hole 72 of the upper mold 7 under the pull of the spring I17. Then the stability of the upper mold 7 and the lower mold 8 can be tested. Then the workpiece is transported to the upper end of the lower mold 8 by the conveying mechanism 3. The power mechanism 19 can drive the connecting rod 6 and the upper mold 7 to move down to squeeze the workpiece. When the bending angle is the same as the V-groove angle, the baffle 13 and the slider 11 slide back to their original positions. Then the conveying mechanism 3 transports the bent workpiece to the support plate 5. The pressure plate 4 moves down to flatten the workpiece. Then the subsequent coating inspection can be carried out.

[0041] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An auxiliary device for testing zinc coating adhesion, characterized in that: The device includes a base, support rods, a power mechanism, a conveying mechanism, a flattening assembly, an upper mold, and a lower mold. The power mechanism is located directly above the base, and is fixed to the four corners of the base via vertical support rods. Output rods are located on the front and rear sides of the bottom of the power mechanism. The conveying mechanism is located on the left and right sides of the upper surface of the base. One end of the flattening assembly is fixed to the front output rod at the bottom of the power mechanism, and the other end is fixed to the front side of the upper surface of the base. The top of the upper mold is coaxially fixed to the rear output rod at the bottom of the power mechanism via a connecting rod. The lower mold is fixed to the rear side of the upper surface of the base and corresponds to the longitudinal position of the upper mold. The upper mold has a V-shaped structure, and the upper middle part of the lower mold has a corresponding V-shaped groove.

2. The auxiliary device for testing zinc layer adhesion according to claim 1, characterized in that: The flattening assembly includes a pressure rod, a pressure plate, and a support plate; the pressure rod is coaxially fixed to the output rod at the front bottom of the power mechanism; the middle of the upper surface of the pressure plate is fixed to the bottom end of the pressure rod; the support plate is fixed to the front side of the upper surface of the base and corresponds to the longitudinal position of the pressure plate.

3. The auxiliary device for testing zinc layer adhesion according to claim 1, characterized in that: Guide plates are provided between the output rods on both sides of the bottom of the power mechanism and the four corner support rods.

4. The auxiliary device for testing zinc layer adhesion according to claim 1, characterized in that: The top of the upper mold and the bottom of the connecting rod are connected by a snap-fit ​​assembly I.

5. An auxiliary device for testing zinc layer adhesion according to claim 4, characterized in that: The snap-fit ​​assembly I includes a concave connecting plate, J-shaped snap-fit ​​blocks, an insert plate, and a spring I. The concave connecting plate is fixedly connected to the bottom end of the connecting rod with its opening facing downwards. The J-shaped snap-fit ​​blocks are horizontally arranged on the left and right sides of the top of the concave connecting plate with their curved sides facing downwards, and are symmetrical to each other. The horizontal side of the J-shaped snap-fit ​​blocks is slidably connected to the concave connecting plate, and a spring I is provided between the inner end of the horizontal side and the inside of the concave connecting plate. The insert plate is fixedly connected between the middle of the inner walls of the front and rear sides of the concave connecting plate. The top center of the upper mold has a slot corresponding to the insert plate. The upper left and right sides of the upper mold have snap-fit ​​holes corresponding to the J-shaped snap-fit ​​blocks on both sides.

6. The auxiliary device for testing zinc layer adhesion according to claim 1, characterized in that: The lower mold is connected to the upper surface of the base via snap-fit ​​assembly II.

7. An auxiliary device for testing zinc coating adhesion according to claim 6, characterized in that: The snap-fit ​​assembly II includes a fixing block, a snap-fit ​​block, a spring II, and a positioning block; the positioning block is fixedly connected to the middle of the front and rear sides of the fixing block; the snap-fit ​​blocks are slidably connected to the front and rear ends of the left side region and the front and rear ends of the right side region of the fixing block, and the front and rear snap-fit ​​blocks in the left side region are connected by spring II, and the front and rear snap-fit ​​blocks in the right side region are connected by spring II; the lower end face of the lower mold has slots corresponding to the shape and position of the fixing block, the snap-fit ​​block, and the positioning block.

8. An auxiliary device for testing zinc coating adhesion according to claim 1, characterized in that: Positioning components are provided in the lower areas of the front and rear sides of the V-groove; the positioning components include sliders, magnets, and baffles; the baffles are respectively and symmetrically arranged in the lower areas of the front and rear sides of the V-groove; sliders are fixedly connected to the bottom outer side of the baffles; vertical grooves are opened on the front and rear sides of the lower mold at positions corresponding to the baffles and sliders; the sliders can drive the baffles to slide up and down within a fixed distance; magnets are provided on the upper surface of the sliders, and the lower molds are made of metal.

9. An auxiliary device for testing zinc layer adhesion according to claim 5, characterized in that: The lower end of the curved side of the J-shaped card block corresponding to the upper mold is set as an inclined surface.

10. An auxiliary device for testing zinc coating adhesion according to claim 7, characterized in that: The surface of the snap-fit ​​block corresponding to the lower mold is set as an arc surface.

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