Universal sledge body with movable and adjustable fulcrums

Abstract

The invention discloses a universal sledge body with movable and adjustable fulcrums, which comprises a support block, a movable and adjustable support rod and a movable and adjustable support rod, the metal guide rail and the supporting block are locked and fixed through a bolt, and the supporting block can slide in the axial direction of the metal guide rail; the pulley is arranged between the metal guide rail and the pulley guide rail, and the metal guide rail is in rolling connection with the pulley guide rail through the pulley; the positioning guide rail is arranged between the two pulley guide rails and located below the metal guide rail, and an adjusting hole is formed in the positioning guide rail; and the locking device is fixedly connected to the metal guide rail, and the bottom end of the locking device is matched with the adjusting hole, so that moving adjustment and locking fixation of the metal guide rail are achieved. According to the skid body, the effect that the skid body for the coating production line independently adapts to various vehicle model sizes is achieved, the problem that the multiple vehicle models of the coating production line need to be designed and transformed into the skid bodies of various corresponding sizes is solved, the storage area of the skid body of the automobile coating production line is reduced, the cost is reduced, and meanwhile through more visual design of the skid body end, a complex vehicle model switching system is avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive painting technology, and in particular to a universal skid with adjustable fulcrum. Background Technology

[0002] In automotive painting production lines, skids are the core carriers for transporting car bodies, enabling the transfer of car bodies between different stages. The lateral supports of the skids are equipped with support blocks featuring locating pins. These pins engage with corresponding locating holes on the bottom of the car body to support and position it. Changes in car model require different skids to match the dimensions of the car body.

[0003] Currently, the painting production line uses the same type of body skid for the same model, and the number of skids is equipped according to the production schedule. This existing technology has the following disadvantages: (1) When a new model is introduced, the existing skids on the production line need to be replaced or modified. If the body size of the new model changes too much, the skids need to be redesigned and produced, which greatly reduces the operating efficiency of the production line; (2) In the multi-model production scenario, when switching skids corresponding to different models, the supporting facilities need to be called, and the skid storage area needs to store the skids corresponding to each model. The more models are switched, the more skids need to be stored; (3) In the early design stage of the multi-model production line, a storage area needs to be specially designed for skids of different models. At the same time, intelligent scheduling and dynamic scheduling (MES system) needs to be equipped to optimize and debug the production process, which increases the initial investment cost and subsequent debugging cost of the production line.

[0004] In view of this, this application proposes a universal skid with adjustable fulcrum. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a universal skid with adjustable fulcrum, which solves the problem of needing to replace and modify different types of skids when changing car models in the painting production line. The skid can be adapted to various car models and bodies for lifting and conveying by adjusting the high degree of freedom of a single skid.

[0006] The technical problem to be solved by the present invention is achieved through the following technical solution:

[0007] A universal skid with adjustable fulcrum, comprising:

[0008] A support block is provided at the support point of the skid body, and a positioning pin is provided above the support block;

[0009] A metal guide rail is fixed to the support block by bolts, and the support block can slide along the axial direction of the metal guide rail;

[0010] A pulley and a pulley rail, wherein the pulley is disposed between the metal rail and the pulley rail, and the metal rail is tactilely connected to the pulley rail via the pulley;

[0011] A positioning guide rail is disposed between the two pulley guide rails and below the metal guide rail, and the positioning guide rail is provided with several adjustment holes.

[0012] A locking device is fixedly connected to the metal guide rail. The bottom end of the locking device cooperates with the adjustment hole of the positioning guide rail to realize the movement adjustment and locking of the metal guide rail.

[0013] Preferably, in the above technical solution, a ruler is provided on the side of the metal guide rail, and the ruler extends along the axial direction of the metal guide rail for visually calibrating the adjustment spacing of the support block.

[0014] Preferably, in the above technical solution, the support block and the metal guide rail are locked together by bolts, and the bolts are loosened; the support block can slide freely along the axial direction of the metal guide rail, and the bolts are tightened, so that the support block can be fixed relative to the metal guide rail.

[0015] Preferably, in the above technical solution, the locking device includes a pull handle, a pin, and a spring. The pull handle and the pin are connected by bolts. The spring is disposed inside the pin. The spring and the pull handle cooperate to form a reaction force. The pin cooperates with the adjustment hole of the positioning guide rail. The pulling action of the pull handle causes the pin to disengage from the adjustment hole. When the pull handle is released, the reaction force of the spring causes the pin to insert into the adjustment hole.

[0016] Preferably, in the above technical solution, there are multiple adjustment holes, which are evenly arranged along the extension direction of the positioning guide rail to realize the rapid switching and locking of multiple positions of the metal guide rail.

[0017] Preferably, in the above technical solution, the pulley is positioned corresponding to the support block, and the pulley is located at the fulcrum of the skid. The pulley is embedded in the pulley guide rail to reduce the frictional force when the metal guide rail moves relative to the pulley guide rail.

[0018] Preferably, in the above technical solution, the number of pulleys and support blocks are both four.

[0019] Preferably, in the above technical solution, the top of the support block is provided with an installation hole, and the bottom of the positioning pin is located in the installation hole and is locked and fixed to the support block by bolts.

[0020] The above-described technical solution of the present invention has the following beneficial effects:

[0021] The adjustable universal skid of this application enables the skid for the painting production line to be individually adapted to the size of multiple vehicle models. It solves the problem that the painting production line needs to design and modify multiple skids of corresponding sizes for multiple vehicle models. It can reduce the area of ​​the skid storage area in the automotive painting production line and reduce investment costs. At the same time, the more intuitive design of the skid end avoids the complex vehicle model switching system.

[0022] Meanwhile, relying on its own structural design advantages, it also has two major features. First, through the unique locking mechanism and guide rail assembly, it has the characteristics of high degree of freedom and wide adjustment range. The spacing of the corresponding model or body-in-white positioning pin opening can be switched by the locking mechanism to realize the transportation operation of a single skid from small body to medium and large body. Second, without modifying the mechanized conveyor roller of the production line, only the skid assembly needs to be improved to achieve the effect of a single skid adapting to multiple models. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0024] Figure 1 The overall structural diagram of a universal skid with adjustable fulcrum.

[0025] Figure 2 This is an overall structural diagram of another angle of the adjustable universal skid with a fulcrum.

[0026] Figure 3 The main view of the adjustable universal skid with fulcrum movement.

[0027] Figure 4 This is a view of the inside of a metal guide rail.

[0028] Figure 5 This is a side view of the movable adjustment device.

[0029] Figure 6 This is a side view of the pulley system.

[0030] Figure 7 This is a structural diagram of the locking mechanism.

[0031] Figure 8 This is a schematic diagram showing the adjustment direction of the skid.

[0032] The diagram is labeled as follows: 1-Support block, 3-Metal guide rail, 4-Pulley guide rail, 5-Pulley, 6-Positioning guide rail, 7-Positioning pin, 8-Locking device. Detailed Implementation

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0034] Unless otherwise specified, the experimental methods used in the following examples are conventional methods, and the materials and reagents used are commercially available. Unless otherwise specified, the equipment used in the experiments is well known to those skilled in the art.

[0035] The principle of this new type of adjustable universal skid with movable pivot point is as follows: It works with a movable support block, the support block having an opening on top for a replaceable positioning pin. The positioning pin is locked to the support block with screws, and the support block is locked to the guide rail with bolts. The metal guide rail can be adjusted in distance via pulleys; this allows for matching with different vehicle body positioning hole sizes. The following is a detailed description:

[0036] This application discloses a novel adjustable universal skid for use in automotive painting production lines. The skid achieves multi-directional adjustment of its positioning position through the sliding and locking of multiple components, which can adapt to the lifting and conveying needs of different vehicle body sizes. It includes a support block 1, a metal guide rail 3, a positioning guide rail 6, a pulley guide rail 4, a pulley 5, a positioning pin 7, and a locking device 8. The connection and cooperation of each component and the overall working process are as follows.

[0037] Support blocks 1 are evenly distributed at the four support points of the skid. The top of the support block 1 is provided with a mounting hole for the positioning pin 7. The positioning pin 7 passes through the mounting hole and is locked to the support block 1 by bolts. Different specifications of positioning pins 7 can be replaced according to actual needs. The support block 1 and the metal guide rail 3 are slidably engaged and locked together by four bolts. Adjusting the tightness of the bolts can realize the sliding and fixing of the support block 1 along the axial direction of the metal guide rail 3. A ruler is fixed on the side of the metal guide rail 3 for visual calibration of the adjustment distance of the support block 1.

[0038] The pulleys 5 are respectively set at the four support points of the skid, and the pulleys 5 are embedded in the pulley guide rail 4. The metal guide rail 3 and the pulley guide rail 4 are in rolling cooperation through the pulleys 5. The pulleys 5 can effectively reduce the friction area when the metal guide rail 3 moves relative to the pulley guide rail 4, and reduce the moving friction.

[0039] The positioning guide rail 6 is arranged between the pulley guide rails 4 and located below the metal guide rail 3. Several adjustment holes are pre-drilled on the positioning guide rail 6. The locking device 8 is fixed to the metal guide rail 3. The pin at the bottom of the device is adapted to the adjustment hole of the positioning guide rail 6, so that the metal guide rail 3 and the positioning guide rail 6 can be inserted, locked and separated.

[0040] The locking device 8 includes a lifting handle, a pin, and a spring. The lifting handle and the pin are fixedly connected by bolts. The spring and the lifting handle work together to form a reaction force. The lifting and lowering actions of the lifting handle can link the pin to the adjustment hole of the positioning guide rail 6 for disengagement and insertion.

[0041] The working process of this skid is centered on the adjustment operation during vehicle model switching. From adjustment preparation and position adjustment to locking and fixing, and then to the actual conveying operation on the painting production line, the complete process is as follows:

[0042] (1) Adjustment preparation stage: When the car painting production line needs to switch models and the size of the car body to be transported changes, there is no need to make any modifications to the mechanized conveying roller of the production line. The general skid can be adjusted on-site directly. First, confirm the position parameters of the positioning holes at the bottom of the car body of the model to be switched. Combine the ruler on the side of the metal guide rail 3 to mark the target position of the support block 1 and the metal guide rail 3 that need to be adjusted.

[0043] (2) Adjustment of the position of support block 1: First, loosen the four fixing bolts between support block 1 and metal guide rail 3 to release the locking state of support block 1 and metal guide rail 3. According to the marked target position, push / pull support block 1 along the axis of metal guide rail 3 until support block 1 moves to the preset position. During this process, precise visual calibration can be performed by using the ruler on the side of metal guide rail 3. After adjustment, tighten the four fixing bolts to relock support block 1 and metal guide rail 3 and complete the spacing adjustment of support block 1.

[0044] (3) Adjustment of the position of the metal guide rail 3: First, pull up the lifting handle of the locking device 8. The lifting action will move the pin upward, so that the pin is completely disengaged from the adjustment hole on the positioning guide rail 6, and the locking fit between the metal guide rail 3 and the positioning guide rail 6 is released. Then push / pull the metal guide rail 3. The metal guide rail 3 will roll along the pulley guide rail 4 through the pulley 5 until the metal guide rail 3 drives the support block 1 and the positioning pin 7 to move to the target position that matches the model to be switched. During this process, the pulley 5 always rolls with the pulley guide rail 4, which effectively reduces the moving resistance of the metal guide rail 3 and ensures the smoothness of the adjustment operation.

[0045] (4) Overall locking and fixing stage: After the metal guide rail 3 moves to the target position, release the lifting handle of the locking device 8. Under the action of the spring reaction force, the lifting handle drives the pin to fall down. The pin is precisely inserted into the adjustment hole at the corresponding position of the positioning guide rail 6, thereby locking the locking device 8 and the positioning guide rail 6, and thus completing the position fixing of the metal guide rail 3. At this time, the support block 1 of the skid and the metal guide rail 3 are locked in the target position, and the spatial position of the positioning pin 7 is completely matched with the positioning hole at the bottom of the vehicle body of the model to be switched.

[0046] (5) Production line conveying operation stage: After the skid is adjusted and locked, the car body to be painted is placed on the skid, so that the positioning pin 7 is accurately inserted into the positioning hole at the bottom of the car body to achieve the support and positioning of the car body; then the skid moves with the mechanized conveying roller of the production line to complete the transfer operation of the car body between different sections of the painting production line.

[0047] (6) Repeated adjustment when switching car models again: When the production line needs to switch to other car models again, repeat the above steps (1)-(5). By loosening the lock, adjusting the position of the support block 1 and the metal guide rail 3, and relocking, the body size requirements of the new car model can be quickly adapted without replacing the skid body, so as to realize the continuous adaptation and transportation of multiple car models by a single skid body.

[0048] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various different choices and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A universal skid with adjustable fulcrum, characterized in that, include: A support block (1) is provided at the support point of the skid body, and a positioning pin (7) is provided above the support block (1). The metal guide rail (3) is fixed to the support block (1) by bolts, and the support block (1) can slide along the axial direction of the metal guide rail (3); A pulley (5) and a pulley rail (4), wherein the pulley (5) is disposed between the metal rail (3) and the pulley rail (4), and the metal rail (3) is rolledly connected to the pulley rail (4) through the pulley (5); The positioning guide rail (6) is located between the two pulley guide rails (4) and below the metal guide rail (3). The positioning guide rail (6) has several adjustment holes. The locking device (8) is fixed to the metal guide rail (3). The bottom end of the locking device (8) cooperates with the adjustment hole of the positioning guide rail (6) to realize the movement adjustment and locking of the metal guide rail (3).

2. The universal skid with adjustable fulcrum according to claim 1, characterized in that, A ruler is provided on the side of the metal guide rail (3), which extends along the axial direction of the metal guide rail (3) and is used to visually calibrate the adjustment spacing of the support block (1).

3. The universal skid with adjustable fulcrum according to claim 1, characterized in that, The support block (1) is locked and fixed to the metal guide rail (3) by bolts. Loosen the bolts; the support block (1) can slide freely along the axial direction of the metal guide rail (3). Tighten the bolts; the support block (1) can be fixed relative to the metal guide rail (3).

4. The universal skid with adjustable fulcrum according to claim 1, characterized in that, The locking device (8) includes a lifting handle, a pin, and a spring. The lifting handle and the pin are connected by bolts. The spring is located inside the pin. The spring and the lifting handle cooperate to form a reaction force. The pin cooperates with the adjustment hole of the positioning guide rail (6). The lifting action of the lifting handle causes the pin to disengage from the adjustment hole. When the lifting handle is released, the reaction force of the spring causes the pin to be inserted into the adjustment hole.

5. The universal skid with adjustable fulcrum according to claim 1, characterized in that, The number of adjustment holes is multiple, and the multiple adjustment holes are evenly arranged along the extension direction of the positioning guide rail (6) to realize the rapid switching and locking of multiple positions of the metal guide rail (3).

6. The universal skid with adjustable fulcrum according to claim 1, characterized in that, The pulley (5) is positioned corresponding to the support block (1), and the pulley (5) is located at the fulcrum of the skid. The pulley (5) is embedded in the pulley guide rail (4) to reduce the friction when the metal guide rail (3) moves relative to the pulley guide rail (4).

7. The universal skid with adjustable fulcrum according to claim 6, characterized in that, The number of pulleys (5) and support blocks (1) is four.

8. The universal skid with adjustable fulcrum according to claim 1, characterized in that, The top of the support block (1) is provided with an installation hole, and the bottom of the positioning pin (7) is located in the installation hole and is locked and fixed to the support block (1) by bolts.

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