A car leaf spring spraying positioning fixture

Abstract

This utility model relates to a positioning fixture for automotive leaf spring spraying, comprising a base and supporting vertical rods fixedly installed at opposite ends of the top surface of the base. Limiting grooves are formed on opposite sides of each of the two supporting vertical rods. Multiple horizontal rods connect the two supporting vertical rods, and each end of the horizontal rods is fixedly connected to a fixing block that slides within the limiting groove. At least two hooks are slidably fitted on each horizontal rod. Multiple locking components are provided on one side of each supporting vertical rod, each used to fix the multiple horizontal rods within the limiting groove. An opening is formed on each supporting vertical rod between any two adjacent horizontal rods, connecting to the limiting groove. This application utilizes the sliding fit between the fixing block and the limiting groove, the loading and unloading guidance of the opening, and the quick locking of the locking components to eliminate the need for repeated bolt disassembly. In scenarios with multiple horizontal rods, the installation, disassembly, and height adjustment of the horizontal rods can be quickly completed, efficiently adapting to different workload requirements and improving operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive leaf spring processing technology, specifically to an automotive leaf spring spraying positioning fixture. Background Technology

[0002] Automotive leaf springs are the most traditional elastic elements in automotive suspension systems, boasting advantages such as high reliability, simple structure, short manufacturing process, low cost, and the ability to significantly simplify the structure. After production, to prevent corrosion and oxidation, protective paint needs to be applied to the leaf springs—a process known as spray painting. Due to the elongated shape of automotive leaf springs, they are typically mounted on a hanger, and then the surface is painted manually or using a robotic arm.

[0003] Chinese patent CN220215389U discloses a car leaf spring painting hanger, including a base with pulleys and supporting vertical rods installed at both ends of the base. A horizontal rod connects the two supporting vertical rods, and at least two hooks are connected to the horizontal rod, with the openings of the hooks fixed upwards. This car leaf spring painting hanger allows workers to place the leaf springs horizontally on the two hooks on the horizontal rod, and then use a painting device to paint the outer surface of the leaf springs. The use of two hooks prevents the leaf springs from swaying or shaking during painting. Furthermore, the distance between the two hooks can be adjusted according to the length of the leaf springs, allowing for the placement of leaf springs of various sizes. When the length is suitable, multiple hooks can be placed on a single horizontal rod to hold multiple leaf springs.

[0004] However, in the above technical solution, the horizontal bar and the supporting vertical bar are fixed by bolts. In the case of multiple horizontal bar installation, the bolts need to be repeatedly disassembled when adjusting the height of the horizontal bar, which is cumbersome and difficult to adapt to different workload requirements quickly. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an automotive leaf spring spraying positioning fixture to solve the technical problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: A positioning fixture for automotive leaf spring spraying includes a base and support vertical rods fixedly installed at opposite ends of the top surface of the base. Each of the two support vertical rods has a limiting groove on one side. Multiple horizontal rods are connected between the two support vertical rods. Each end of the multiple horizontal rods is fixedly connected to a fixing block that slides into the limiting groove. At least two hooks are slidably fitted on the horizontal rods. Multiple snap-fit ​​components are provided on one side of the support vertical rods. The multiple snap-fit ​​components are used to fix the multiple horizontal rods in the limiting groove. An opening is provided on the support vertical rod between any two adjacent horizontal rods, and the opening is connected to the limiting groove.

[0007] Furthermore, multiple support blocks are fixedly installed inside the limiting groove, and the bottom surfaces of the fixing blocks at both ends of the multiple crossbars abut against the top surfaces of the multiple support blocks respectively.

[0008] Furthermore, the snap-fit ​​assembly includes a connecting frame, a limiting rod, and a return spring. The connecting frame is fixedly installed on one side of the supporting vertical rod, and the limiting rod is slidably fitted on the connecting frame. A through hole is provided on the supporting vertical rod, and a limiting hole is provided on the fixing block. The limiting hole corresponds to the through hole. One end of the limiting rod passes through the through hole and is inserted into the limiting hole. A limiting block is fixedly installed on the limiting rod, and the return spring is sleeved on the limiting rod. Both ends of the return spring are fixedly connected to one side of the limiting block and one side of the connecting frame, respectively.

[0009] Furthermore, the end of the limiting rod inserted into the limiting hole is inclined.

[0010] Furthermore, a groove is provided on the top surface of the crossbar, and one end of the hook slides into the groove.

[0011] Furthermore, a magnet is provided on one side of the inner wall of the chute, and an iron sheet that matches the magnet is fixedly installed on one side of the hook that slides into the chute.

[0012] The beneficial effects of this utility model are as follows: 1. This application abandons the traditional bolt fixing method. With the sliding cooperation of the fixing block and the limiting groove, the loading and unloading guidance of the through port, and the quick locking of the snap-fit ​​component, there is no need to repeatedly disassemble the bolts. In multi-bar scenarios, the installation, disassembly and height adjustment of the crossbar can be completed quickly, which can efficiently adapt to different workload requirements and improve operation efficiency.

[0013] 2. The hooks can slide horizontally along the crossbar to adjust the spacing, which can stably hang automotive leaf springs of different lengths, and a single crossbar can hang multiple leaf springs; combined with the adjustable height of the crossbar and the quick disassembly and assembly features, the hanger can flexibly adapt to leaf springs of different sizes and different spraying workloads, making it more widely applicable.

[0014] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] Figure 1 This is a perspective view (first-person view) of the present invention. Figure 2 This is a perspective view (second view) of the present invention. Figure 3 This is an exploded view of the snap-fit ​​assembly and the supporting vertical rod of this utility model; Figure 4 This is an exploded view (first perspective) of the hook and crossbar of this utility model. Figure 5 This is an exploded view (second perspective) of the hook and crossbar of this utility model.

[0016] In the diagram: 1. Base; 2. Supporting vertical rod; 3. Limiting groove; 4. Horizontal bar; 5. Fixing block; 6. Hook; 7. Snap-fit ​​assembly; 701. Connecting frame; 702. Limiting rod; 703. Return spring; 704. Limiting block; 8. Limiting hole; 9. Through opening; 10. Supporting block; 11. Through hole; 12. Slide groove; 13. Magnet; 14. Iron sheet. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0022] Please see Figure 1-5 This utility model provides a technical solution: an automotive leaf spring spraying positioning fixture, including a base 1 and support vertical rods 2 fixedly installed at opposite ends of the top surface of the base 1. Each of the two support vertical rods 2 has a limiting groove 3 on one side. Multiple horizontal rods 4 are connected between the two support vertical rods 2. Each end of the multiple horizontal rods 4 is fixedly connected to a fixing block 5 that slides within the limiting groove 3. At least two hooks 6 are slidably fitted on the horizontal rods 4. Multiple snap-fit ​​components 7 are provided on one side of the support vertical rods 2. The multiple snap-fit ​​components 7 are used to fix the multiple horizontal rods 4 in the limiting groove 3. Each support vertical rod 2 between any two adjacent horizontal rods 4 has a through opening 9 that connects to the limiting groove 3.

[0023] In this technical solution, the height and width of the through-hole 9 correspond to the fixing block 5. Multiple snap-fit ​​components 7 are fixedly installed on one side of the support vertical rod 2. The fixing blocks 5 at the ends of multiple horizontal rods 4 correspond to the multiple snap-fit ​​components 7 respectively. Furthermore, the support vertical rod 2 between any two adjacent horizontal rods 4 is provided with through-hole 9. Multiple horizontal rods 4 can enter the limiting groove 3 on the support vertical rod 2 through the corresponding through-hole 9, thereby quickly installing or removing the horizontal rods 4.

[0024] In practical use, the fixing blocks 5 at both ends of the crossbar 4 slide and engage with the limiting groove 3, allowing the height to be adjusted up and down along the groove to accommodate different workloads. After adjustment, the snap-fit ​​component 7 on one side of the supporting vertical bar 2 engages with the fixing block 5 at the end of the crossbar 4, stably fixing the crossbar 4 at the target height. The hook 6 on the crossbar 4 can slide horizontally, allowing the spacing to be adjusted according to the length of the automotive leaf spring to accommodate different sizes of leaf springs, enabling the mounting of single or multiple leaf springs. In scenarios with multiple crossbars 4 installed, if it is necessary to adjust the spacing between adjacent crossbars 4 or remove a certain crossbar 4, simply operate the snap-fit ​​component 7 corresponding to that crossbar 4 to unlock it, then pull the crossbar 4 upward along the limiting groove 3 until the fixing block 5 at the end of the crossbar 4 aligns with the opening 9 between adjacent crossbars 4 on the supporting vertical bar 2. Finally, the crossbar 4 can be removed from the supporting vertical bar 2 through the opening 9, completing the removal or spacing adjustment of the crossbar 4.

[0025] This application abandons the traditional bolt fixing method. By using the sliding cooperation between the fixing block 5 and the limiting groove 3, the loading and unloading guidance of the through port 9, and the quick locking of the snap-fit ​​component 7, there is no need to repeatedly disassemble the bolts. In the case of multiple crossbars 4, the installation, disassembly and height adjustment of the crossbars 4 can be completed quickly, which can efficiently adapt to different workload requirements and improve operation efficiency.

[0026] In addition, the hook 6 can slide horizontally along the crossbar 4 to adjust the spacing, which can stably hang automotive leaf springs of different lengths, and a single crossbar 4 can hang multiple leaf springs; combined with the adjustable height and quick disassembly and assembly features of the crossbar 4, the hanger can flexibly adapt to leaf springs of different sizes and different spraying workloads, making it more widely applicable.

[0027] In this embodiment: multiple support blocks 10 are fixedly installed in the limiting groove 3, and the bottom surfaces of the fixing blocks 5 at both ends of the multiple crossbars 4 respectively abut against the top surfaces of the multiple support blocks 10.

[0028] The support block 10 provides stable vertical support for the crossbar 4, and together with the lateral locking of the snap-fit ​​assembly 7, it achieves double fixation of the crossbar 4 within the limiting groove 3. When installing the crossbar 4, simply pass the fixing blocks 5 at both ends of the crossbar 4 through the corresponding openings 9 on the support vertical bar 2, then slide the fixing blocks 5 along the limiting groove 3 to the target support block 10 position, so that the bottom surface of the fixing block 5 fits against the top surface of the support block 10, and then lock it in place using the snap-fit ​​assembly 7.

[0029] In this embodiment: the snap-fit ​​assembly 7 includes a connecting frame 701, a limiting rod 702 and a return spring 703. The connecting frame 701 is fixedly installed on one side of the supporting vertical rod 2. The limiting rod 702 is slidably fitted on the connecting frame 701. The supporting vertical rod 2 has a through hole 11. The fixing block 5 has a limiting hole 8. The limiting hole 8 corresponds to the through hole 11. One end of the limiting rod 702 passes through the through hole 11 and is inserted into the limiting hole 8. A limiting block 704 is fixedly installed on the limiting rod 702. The return spring 703 is sleeved on the limiting rod 702. The two ends of the return spring 703 are fixedly connected to one side of the limiting block 704 and one side of the connecting frame 701, respectively.

[0030] The end of the limiting rod 702 inserted into the limiting hole 8 is inclined.

[0031] In this technical solution, when the reset spring 703 is in a freely extended state, one end of the limiting rod 702 passes through the through hole 11 and is located in the limiting groove 3.

[0032] In practical use, when the fixing blocks 5 at both ends of the crossbar 4 enter the limiting groove 3 through the through-hole 9, they slide downwards along the limiting groove 3. The inclined surface of the fixing block 5 contacts the inclined end of the limiting rod 702 and applies lateral pressure, causing the limiting rod 702 to compress the return spring 703 and move outwards until the inclined end of the limiting rod 702 is flush with the through hole 11. At this time, the bottom surface of the fixing block 5 abuts against the support block 10, and the limiting hole 8 on it aligns with the through hole 11. Under the rebound force of the return spring 703, the limiting rod 702 automatically passes through the through hole 11 and inserts into the limiting hole 8, completing the quick fixing of the crossbar 4. When it is necessary to disassemble the crossbar 4, simply pull the limiting rod 702 manually to make it exit the limiting hole 8, and the crossbar 4 can be moved upwards along the limiting groove 3 and taken out through the through-hole 9.

[0033] In this embodiment: a groove 12 is provided on the top surface of the crossbar 4, and one end of the hook 6 is slidably engaged in the groove 12.

[0034] In practical use, since the leaf springs come in various lengths, when placing the leaf springs on the two hooks 6, the distance between the two hooks 6 needs to be adjusted according to the actual length of the leaf springs. At the same time, when multiple leaf springs can be placed on a crossbar 4, multiple hooks 6 can also be hung in the slide groove 12 to adjust the spacing.

[0035] In this embodiment: a magnet 13 is provided on one side of the inner wall of the slide groove 12, and an iron piece 14 adapted to the magnet 13 is fixedly installed on one side of the hook 6 that is slidably engaged in the slide groove 12.

[0036] In practical use, the magnet 13 on the inner wall of the slide groove 12 attracts the iron piece 14 on one side wall of the hook 6. After the distance between the hook 6 and the slide groove 12 is adjusted, the iron piece 14 and the magnet 13 attract each other. After the leaf spring is placed on the hook 6, the hook 6 will not be squeezed and slid to the sides by the leaf spring, causing it to detach.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning fixture for automotive leaf spring spraying, comprising a base (1) and support vertical rods (2) fixedly installed at opposite ends of the top surface of the base (1), characterized in that: Each of the two supporting vertical rods (2) has a limiting groove (3) on one side. Multiple horizontal rods (4) are connected between the two supporting vertical rods (2). Both ends of the multiple horizontal rods (4) are fixedly connected to a fixing block (5) that slides into the limiting groove (3). At least two hooks (6) slide into the horizontal rods (4). Multiple snap-fit ​​components (7) are provided on one side of the supporting vertical rods (2). The multiple snap-fit ​​components (7) are used to fix the multiple horizontal rods (4) in the limiting groove (3). A through opening (9) is provided on the supporting vertical rod (2) between any two adjacent horizontal rods (4). The through opening (9) is connected to the limiting groove (3).

2. The automotive leaf spring spraying positioning fixture according to claim 1, characterized in that: Multiple support blocks (10) are fixedly installed in the limiting groove (3), and the bottom surfaces of the fixing blocks (5) at both ends of the multiple crossbars (4) respectively abut against the top surfaces of the multiple support blocks (10).

3. The automotive leaf spring spraying positioning fixture according to claim 1, characterized in that: The snap-fit ​​assembly (7) includes a connecting frame (701), a limiting rod (702), and a return spring (703). The connecting frame (701) is fixedly installed on one side of the supporting vertical rod (2). The limiting rod (702) is slidably fitted on the connecting frame (701). The supporting vertical rod (2) has a through hole (11). The fixing block (5) has a limiting hole (8). The limiting hole (8) corresponds to the through hole (11). One end of the limiting rod (702) passes through the through hole (11) and is inserted into the limiting hole (8). A limiting block (704) is fixedly installed on the limiting rod (702). The return spring (703) is sleeved on the limiting rod (702). Both ends of the return spring (703) are fixedly connected to one side of the limiting block (704) and one side of the connecting frame (701), respectively.

4. The automotive leaf spring spraying positioning fixture according to claim 3, characterized in that: The end of the limiting rod (702) inserted into the limiting hole (8) is inclined.

5. The automotive leaf spring spraying positioning fixture according to claim 1, characterized in that: The top surface of the crossbar (4) is provided with a groove (12), and one end of the hook (6) is slidably engaged in the groove (12).

6. The automotive leaf spring spraying positioning fixture according to claim 5, characterized in that: A magnet (13) is provided on one side of the inner wall of the slide groove (12), and an iron piece (14) that matches the magnet (13) is fixedly installed on one side of the hook (6) which is slidably engaged in the slide groove (12).

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