A metal sample holder device
By using a three-point hook and counterweight design, the problem of samples swaying in high-speed airflow in the spraying fixture was solved, thus improving the uniformity of spraying and the reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INSTITUTE OF MATERIALS & INTELLIGENT MANUFACTURING JIANGXI ACADEMY OF SCIENCES
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
Existing spraying fixtures, due to their suspension method, cause the samples to be sprayed to be easily blown and swayed in the high-speed airflow, resulting in uneven spraying.
The three-point hook method is adopted, and the gravity of the counterweight component generates tension on the hook, ensuring that the sample is tensioned and supported in three directions. The two hooks are connected by the same cable to simplify the equipment structure.
It effectively prevents samples from shaking in high-speed airflow, ensuring uniform spraying, while reducing equipment costs and failure rates, and improving equipment adaptability and reliability.
Smart Images
Figure CN224542058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying tooling fixture technology, specifically to a metal sample clamping device. Background Technology
[0002] In the field of cold spraying, samples to be sprayed are generally placed on fixtures in a suspended manner. Sometimes, spraying methods with high-speed jets are used. However, the high-speed airflow during spraying can easily cause the sample to sway, resulting in uneven spraying and affecting the final spraying effect. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect of the existing spraying fixtures, which are made of suspension, causing the sample to be sprayed to be easily blown and swayed by high-speed airflow, resulting in uneven spraying.
[0004] To address the aforementioned technical problems, this application provides a metal sample clamping device, comprising:
[0005] The main frame is an upright frame structure; a first main frame fixed pulley and a second main frame fixed pulley are respectively installed at the two top corners of the main frame; each of the first main frame fixed pulley and the second main frame fixed pulley is connected to a hook by a cable; at least one hook is installed at the bottom of the main frame;
[0006] The sub-frame is located on one side of the main frame; at the two top corners of the sub-frame, there are first sub-frame fixed pulleys and second sub-frame fixed pulleys respectively;
[0007] The counterweight assembly has a movable pulley at the top; the cable passes through the first main frame fixed pulley, the second auxiliary frame fixed pulley, the counterweight assembly movable pulley, the first auxiliary frame fixed pulley, and the second main frame fixed pulley in sequence; when each hook catches the sample to be sprayed, the counterweight assembly is in a suspended state.
[0008] Furthermore, the rotation axes of the first and second main frame fixed pulleys are perpendicular to the plane in which the main frame is located.
[0009] Furthermore, the second main frame fixed pulley and the first auxiliary frame fixed pulley are arranged on the adjacent sides of the main frame and the auxiliary frame; there is a height difference between the cables passing through the second main frame fixed pulley and the first auxiliary frame fixed pulley and the cables passing through the first main frame fixed pulley and the second auxiliary frame fixed pulley.
[0010] Furthermore, a gap is provided between the second main frame fixed pulley and the first auxiliary frame fixed pulley.
[0011] Furthermore, both the second main frame fixed pulley and the first auxiliary frame fixed pulley are equipped with pulley seats with cable-passing holes; the cable passing between the first main frame fixed pulley and the second auxiliary frame fixed pulley passes through the cable-passing holes.
[0012] Furthermore, the main frame includes a horizontal bar and two main frame uprights; the horizontal bar and the main frame uprights form a portal frame structure; a protrusion protruding from one side of the horizontal bar is provided at the intersection of the horizontal bar and the main frame uprights; a first main frame fixed pulley and a second main frame fixed pulley are provided at the bottom of the protrusions at corresponding corners.
[0013] Furthermore, the subframe includes a vertically arranged subframe upright; multiple positioning holes are opened on the subframe upright along the height direction, and a support rod is inserted through the positioning hole; the support rod is adapted to support the counterweight assembly.
[0014] Furthermore, there are two auxiliary uprights, which are respectively set on both sides of the counterweight assembly; the counterweight assembly has an H-shaped cross-section and is clamped between the two auxiliary uprights.
[0015] Furthermore, in the cross-section of the counterweight assembly, there is a gap of not less than 3mm between the counterweight assembly and the sub-frame upright.
[0016] Furthermore, the counterweight assembly includes a counterweight assembly top plate, a counterweight assembly bottom plate, and multiple counterweight blocks; a movable pulley of the counterweight assembly is disposed at the top of the counterweight assembly top plate, and a screw is vertically disposed at the bottom of the counterweight assembly top plate; the counterweight blocks are inserted into the screw through counterweight block through holes; the counterweight assembly bottom plate is located at the bottom of the lowest counterweight block and is threadedly connected to the screw; side slots suitable for the passage of the auxiliary frame uprights are provided on both sides of the counterweight blocks.
[0017] By adopting the above technical solution, this utility model has the following technical effects:
[0018] The metal sample clamping device provided by this utility model employs a three-point hooking method. Two of the hooks at these points maintain tension under the weight of the counterweight assembly, which in turn causes tension at the bottom hook. This tensions the sample to be sprayed in three different directions, preventing it from swaying even in high-speed airflow. The three hooks and cables do not excessively obstruct the outer surface of the sample or hinder the movement and direction of the spray gun, thus minimizing interference with the spraying operation. Furthermore, the top hook extends through the cable, covering a large area inside the main frame, effectively accommodating products of various sizes and offering high product adaptability. Additionally, because the counterweight assembly is connected to both hooks via the same cable, both hooks share a single mechanism for generating the return force. This simplifies the equipment structure, reduces costs, and improves reliability by avoiding the increased failure rate associated with using an additional return mechanism. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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 from these drawings without creative effort.
[0020] Figure 1 This is a first-view perspective structural schematic diagram of an embodiment of the present utility model;
[0021] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0022] Figure 3 This is a first-view schematic perspective view of the structure of an embodiment of the present invention (the hook and cable are not shown);
[0023] Figure 4 This is an exploded view illustrating the structure of the breeding component according to an embodiment of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1-Protrusion, 2-Crossbar, 3-Main frame, 4-Cable, 5-First auxiliary frame fixed pulley, 6-Auxiliary frame, 7-Second auxiliary frame fixed pulley, 8-Counterweight assembly movable pulley, 9-Counterweight assembly top plate, 10-Counterweight block, 11-Auxiliary frame upright, 12-Base, 13-Hook, 14-Main frame upright, 15-First main frame fixed pulley, 16-Pulley seat, 17-Second main frame fixed pulley, 18-Cable hole, 19-Bearing rod, 20-Positioning hole, 21-Counterweight assembly base plate, 22-Nut, 23-Screw, 24-Counterweight block through hole, 25-Side slot. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] It should be noted in the description of this utility model that the coordinate system used in describing the orientation is determined by the orientation of its main view, and the naming of the observation angle of the corresponding view is also based on this. Therefore, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicated by this specification are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0030] This embodiment provides a metal sample clamping device.
[0031] In one implementation, such as Figures 1 to 4 As shown, it includes a main frame 3, a sub-frame 6, and a counterweight assembly. A movable chassis 12 can be installed at the bottom of both the main frame 3 and the sub-frame 6 as needed.
[0032] The main frame 3 is an upright frame structure. A first main frame fixed pulley 15 and a second main frame fixed pulley 17 are respectively installed at the two top corners of the main frame 3. Each of the first main frame fixed pulley 15 and the second main frame fixed pulley 17 is connected to a hook 13 via a cable 4. At least one hook 13 is installed at the bottom of the main frame 3.
[0033] The secondary frame 6 is located on one side of the main frame 3. At the two top corners of the secondary frame 6, there are first secondary frame fixed pulleys 5 and second secondary frame fixed pulleys 7 respectively.
[0034] The counterweight assembly has a movable pulley 8 at the top. The cable 4 passes sequentially through the first main frame fixed pulley 15, the second auxiliary frame fixed pulley 7, the counterweight assembly movable pulley 8, the first auxiliary frame fixed pulley 5, and the second main frame fixed pulley 17.
[0035] In use, the device is first hooked onto the hook 13 located at the bottom of the main frame 3. Then, the hook 13 located at the top of the main frame 3, which is connected to either the first main frame fixed pulley 15 or the second main frame fixed pulley 17, is pulled down. As the hook 13 is pulled down, the counterweight component moves upward under the tension of the cable 4. When the hook 13 is hooked onto the sample to be sprayed, releasing the device causes the counterweight component to pull back onto the hook 13 because it is in a suspended state. Once both hooks 13 connected to the first main frame fixed pulley 15 and the second main frame fixed pulley 17 are hooked, the fixation of the sample to be sprayed is completed, and the spraying operation can then begin.
[0036] This device employs a three-point hooking method. Two of the hooks 13 maintain tension under the weight of the counterweight assembly, which in turn tensions the remaining hook 13 at the bottom. This tensions the sample to be sprayed in three different directions, preventing it from swaying even in high-speed airflow. The three hooks 13 and cables 4 do not excessively obstruct the outer surface of the sample or hinder the movement and direction of the spray gun, thus minimizing interference with the spraying operation. Furthermore, because the top hook 13 extends through the cables 4, it covers a large area inside the main frame 3, effectively hooking products of various sizes and offering high product adaptability. In addition, since the counterweight component of this device is connected to the two hooks 13 by the same cable 4, the two hooks 13 share the same device that generates the pull-back force, which simplifies the equipment structure, reduces the equipment cost, and improves the reliability of the equipment by avoiding the failure rate caused by using an extra pull-back device.
[0037] Based on the above embodiments, in a preferred embodiment, such as Figures 1 to 3 As shown, the rotation axes of the first main frame fixed pulley 15 and the second main frame fixed pulley 17 are perpendicular to the plane where the main frame 3 is located. In other words, the rotation surfaces of the two pulleys are parallel to the main frame 3. The main frame 3 acts as a frame, and the empty area in its middle is the area where the sample to be sprayed is placed. As mentioned above, the hook 13 can be extended and retracted by the cable 4. However, the cable 4 is ultimately constrained by the pulleys. If the pulley's rotation axis is parallel to the plane where the main frame 3 is located, that is, if the rotation surface of the pulley is perpendicular to the main frame 3, then the pulley's groove will only face a specific angle towards the inner area of the main frame 3. Once the hook 13 is hooked at other angles, especially when it is at a point where the deviation from the groove direction is too large, the cable 4 is prone to detachment, causing a malfunction. By making the rotation surface of the pulley parallel to the main frame 3, even if the hook 13 swings to different angles, the cable 4 will always be in the direction of the pulley groove, thus avoiding the risk of the cable 4 detaching from the groove.
[0038] Based on the above embodiments, in a preferred embodiment, such as Figure 1 and 3 As shown, the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5 are arranged on the adjacent sides of the main frame 3 and the auxiliary frame 6. And as... Figure 2 As shown, the cable 4 threaded through the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5 is located below the cable 4 threaded through the first main frame fixed pulley 15 and the second auxiliary frame fixed pulley 7, and there is a height difference between them. As mentioned above, it is best for the cable 4 to run entirely along the direction of the pulley groove. However, the running direction of the cable 4 in this device is relatively tortuous, and it is easy to cross in the reciprocating direction, which is not conducive to the normal operation of the cable 4. In this embodiment, the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5 are arranged as a relatively close pair, and the first main frame fixed pulley 15 and the second auxiliary frame fixed pulley 7 are arranged as a relatively far pair, and a height difference is formed between the two pairs of pulleys, thereby avoiding the cable 4 crossing in the reciprocating direction and ensuring the smooth operation of the equipment.
[0039] Based on the above embodiments, in a preferred embodiment, such as Figure 1 and 3 As shown, a gap is provided between the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5, that is, a certain distance is provided between the main frame 3 and the auxiliary frame 6. Because the counterweight assembly is a component with a certain volume, it may hinder the movement of the spray gun or even block part of the surface of the sample to be sprayed during the spraying operation. Therefore, this embodiment sets a certain gap between the main frame 3 and the auxiliary frame 6 to reduce the negative impact of the counterweight assembly.
[0040] Based on the above embodiments, in a preferred embodiment, such as Figure 1 and 2 As shown, both the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5 are equipped with pulley seats 16 having cable holes 18. The cable 4, which passes between the first main frame fixed pulley 15 and the second auxiliary frame fixed pulley 7, passes through the cable holes 18. Although the second main frame fixed pulley 17 and the first auxiliary frame fixed pulley 5 could be significantly lowered to completely avoid the cable 4 passing between them, this would sacrifice too much of the height of the second main frame fixed pulley 17, thus reducing its adaptability for hooking large samples. However, by providing pulley seats 16 with cable holes 18, the cable 4 can run unobstructed without significantly reducing the height of the second main frame fixed pulley 17.
[0041] Based on the above embodiments, in a preferred embodiment, such as Figure 1As shown, the main frame 3 includes a crossbar 2 and two main frame uprights 14. The crossbar 2 and the main frame uprights 14 form a portal frame structure. A protrusion 1 protruding from one side of the crossbar 2 is provided at the intersection of the crossbar 2 and the main frame uprights 14. A first main frame fixed pulley 15 and a second main frame fixed pulley 17 are provided at the bottom of the protrusion 1 at the corresponding corners. The pulleys and their corresponding supports have a certain volume. If the pulleys are placed in the internal empty area of the main frame 3, they will encroach on the area where the sample to be sprayed can be placed, reducing the adaptability of the equipment. Therefore, this embodiment provides a protrusion 1 protruding from one side of the main frame 3 and places the pulleys on it, thereby preserving the internal empty area of the main frame 3 as much as possible, so that the device can accommodate larger samples to be sprayed.
[0042] Based on the above embodiments, in a preferred embodiment, such as Figure 1 and 3 As shown, the subframe 6 includes a vertically arranged subframe upright 11. Multiple positioning holes 20 are formed along the height direction on the subframe upright 11, and support rods 19 are inserted through the positioning holes 20. The support rods 19 are adapted to support the counterweight assembly. If the sample to be sprayed is relatively small, the extension distance of the top hook 13 will be relatively long. If there are many similar samples, a long stretch of the cable 4 is required after each spraying. Since the cable 4 is ultimately connected to the counterweight assembly with a certain weight, the long stretch of the cable 4 will consume too much of the operator's physical strength. Therefore, this embodiment provides support rods 19 and corresponding multiple positioning holes 20. When hooking a large number of small samples, the support rods 19 can be inserted at a suitable height to prevent the counterweight assembly from falling to the bottom after each spraying, thereby shortening the distance of the laboriously stretched cable 4 and saving personnel's physical strength.
[0043] Based on the above embodiments, in a preferred embodiment, such as Figure 1 and 3 As shown, there are two auxiliary frame uprights 11, respectively positioned on both sides of the counterweight assembly. The counterweight assembly has an H-shaped cross-section and is secured between the two auxiliary frame uprights 11. In a painting workshop, not all floors are flat; sometimes there are slopes. Without sufficient restraint, the counterweight assembly would behave much like a pendulum, causing significant swaying when the equipment moves up or down slopes, severely affecting the stability of the upright main frame 3 and potentially causing the entire equipment to overturn. By setting two auxiliary frame uprights 11 and securing the counterweight assembly in an H-shape between them, the counterweight assembly is restrained, preventing it from swinging freely like a pendulum during uphill or downhill movements.
[0044] Based on the above embodiments, in a preferred embodiment, a gap of not less than 3 mm is provided between the counterweight component and the sub-frame upright 11 in the cross-section of the counterweight component. This device is, after all, a spray painting tool, and during operation, paint can easily be sprayed onto the sub-frame upright 11. As the paint accumulates, it forms droplets that flow downwards. If the gap between the counterweight component and the sub-frame upright 11 is too small, the paint will be obstructed during its downward flow, stagnating between the two components. Once the paint solidifies, it will stick the counterweight component together, making it difficult to move and necessitating maintenance. By setting a gap of not less than 3 mm between them, this problem can be effectively prevented.
[0045] Based on the above embodiments, in a preferred embodiment, such as Figure 4 As shown, the counterweight assembly includes a top plate 9, a bottom plate 21, and multiple counterweight blocks 10. A movable pulley 8 is positioned at the top of the top plate 9, and a screw 23 is vertically positioned at the bottom of the top plate 9. The counterweight blocks 10 pass through through holes 24 on the screw 23. The bottom plate 21 is located at the bottom of the lowest counterweight block 10 and is threadedly connected to the screw 23 via nuts 22. The counterweight blocks 10 have an H-shaped structure, with side slots 25 on both sides to allow the passage of the subframe uprights 11. The use of multiple adjustable counterweight blocks 10 improves the equipment's adaptability and saves operator effort. Because the samples to be coated vary in size, smaller samples require less counterweight to generate sufficient tension on the hook 13, while larger samples require a corresponding increase in counterweight. Therefore, this embodiment achieves the total weight of the counterweight assembly by superimposing multiple adjustable counterweight blocks 10, which allows the total weight of the counterweight assembly to be adjusted according to the sample size. This improves the applicability to large samples and reduces the physical burden on operators when handling small samples by reducing the total weight of the counterweight assembly.
[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A metal sample clamping device, characterized in that, include: The main frame (3) is a vertical frame structure; a first main frame fixed pulley (15) and a second main frame fixed pulley (17) are respectively set at the two corners of the top of the main frame (3); the first main frame fixed pulley (15) and the second main frame fixed pulley (17) are each connected to a hook (13) by a cable (4); At least one hook (13) is provided at the bottom of the main frame (3); A sub-frame (6) is set on one side of the main frame (3); a first sub-frame fixed pulley (5) and a second sub-frame fixed pulley (7) are respectively set at the two corners of the top of the sub-frame (6); The counterweight assembly has a movable pulley (8) at the top; the cable (4) passes through the first main frame fixed pulley (15), the second auxiliary frame fixed pulley (7), the movable pulley (8), the first auxiliary frame fixed pulley (5), and the second main frame fixed pulley (17) in sequence; when each hook (13) hooks the sample to be sprayed, the counterweight assembly is in a suspended state.
2. The metal sample clamping device according to claim 1, characterized in that, The rotation axes of the first main frame fixed pulley (15) and the second main frame fixed pulley (17) are perpendicular to the plane where the main frame (3) is located.
3. The metal sample clamping device according to claim 2, characterized in that, The second main frame fixed pulley (17) and the first auxiliary frame fixed pulley (5) are located on the adjacent sides of the main frame (3) and the auxiliary frame (6); the cable (4) passing through the second main frame fixed pulley (17) and the first auxiliary frame fixed pulley (5) is located below the cable (4) passing through the first main frame fixed pulley (15) and the second auxiliary frame fixed pulley (7), and there is a height difference between the two.
4. The metal sample clamping device according to claim 3, characterized in that, A gap is provided between the second main frame fixed pulley (17) and the first auxiliary frame fixed pulley (5).
5. The metal sample clamping device according to claim 4, characterized in that, Both the second main frame fixed pulley (17) and the first auxiliary frame fixed pulley (5) are provided with pulley seats (16) having cable holes (18); the cable (4) passing between the first main frame fixed pulley (15) and the second auxiliary frame fixed pulley (7) passes through the cable holes (18).
6. The metal sample clamping device according to claim 2, characterized in that, The main frame (3) includes a horizontal bar (2) and two main frame uprights (14); the horizontal bar (2) and the main frame uprights (14) form a portal frame structure; a protrusion (1) protruding from one side of the horizontal bar (2) is provided at the intersection of the horizontal bar (2) and the main frame uprights (14); a first main frame fixed pulley (15) and a second main frame fixed pulley (17) are provided at the bottom of the protrusion (1) at the corresponding corner.
7. The metal sample clamping device according to any one of claims 1 to 6, characterized in that, The subframe (6) includes a vertically arranged subframe upright (11); multiple positioning holes (20) are opened along the height direction on the subframe upright (11), and a support rod (19) is inserted through the positioning hole (20); the support rod (19) is adapted to support the counterweight assembly.
8. The metal sample clamping device according to claim 7, characterized in that, There are two sub-frame uprights (11), which are respectively set on both sides of the counterweight assembly; the counterweight assembly has an H-shaped cross section and is sandwiched between the two sub-frame uprights (11).
9. The metal sample clamping device according to claim 8, characterized in that, On the cross-section of the counterweight assembly, there is a gap of not less than 3mm between the counterweight assembly and the sub-frame upright (11).
10. The metal sample clamping device according to claim 8, characterized in that, The counterweight assembly includes a top plate (9), a bottom plate (21), and multiple counterweight blocks (10); The counterweight assembly movable pulley (8) is set on the top of the counterweight assembly top plate (9), and a screw (23) is vertically set at the bottom of the counterweight assembly top plate (9); the counterweight block (10) passes through the counterweight block through hole (24) on the screw (23); the counterweight assembly bottom plate (21) is located at the bottom of the lowest counterweight block (10) and is threadedly connected to the screw (23); side slots (25) suitable for the passage of the sub-frame upright (11) are provided on both sides of the counterweight block (10).