A jig structure suitable for a spray ground rail conveying line

Abstract

The utility model provides a kind of jig structure suitable for spraying ground rail conveying line, including rotating outer tube, be located in the jacking rod of rotating outer tube, movable sleeve is set in rotating outer tube and is fixed with jacking rod bottom lifting base, rotating outer tube is equipped with linear bearing between jacking rod and jacking rod is guided to slide, jacking rod is close to the upper limit pin of lower section, lifting base is set lower limit sleeve in bottom, rotating outer tube is equipped with sleeve head in top, jacking rod is equipped with inner top in top, inner top is equipped in sleeve head and can be pushed out in the process of jacking of jacking rod. The jig structure can effectively improve the accuracy of straight-line operation, the precision of deflection amplitude can be accurately controlled and greatly reduced, and upper limit and lower limit with controllable limiting precision can be formed.

Description

Technical Field

[0001] This utility model relates to the field of spray-painted ground rail conveyor technology, and in particular to a fixture structure suitable for spray-painted ground rail conveyor. Background Technology

[0002] This application is mainly for the optimization and improvement of the product involved in the Chinese utility model patent with publication number CN218834872U.

[0003] The aforementioned utility model patent mainly discloses a ground-rail type spraying line, which has at least the following shortcomings:

[0004] 1) During powder spraying, the edge of the opening at the top of the outer jacket 8 is directly exposed, which may cause powder to soak in.

[0005] 2) The lifting body 12 itself is not manufactured with high precision. The upper and lower stroke limits are limited by the connecting rod 14 welded to the lifting body 12 and the bottom of the lifting body 12, which reduces the limiting accuracy.

[0006] 3) The lifting rod 11 has no auxiliary guide sliding component, and the deflection amplitude cannot be accurately controlled during the lifting operation. Utility Model Content

[0007] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, this disclosure provides a fixture structure suitable for a spray painting ground rail conveyor line, including: a rotating outer tube, a lifting rod disposed inside the rotating outer tube, and a lifting base movably sleeved on the rotating outer tube and fixedly connected to the bottom of the lifting rod. A linear bearing is installed between the rotating outer tube and the lifting rod to guide the lifting rod to slide. An upper limit pin is provided near the lower section of the lifting rod. A lower limit sleeve is provided at the bottom of the lifting base. An outer sleeve is installed at the top of the rotating outer tube. An inner top is installed at the top of the lifting rod. The inner top is disposed inside the outer sleeve and can be pushed out during the lifting process of the lifting rod.

[0009] In one possible implementation, at least one linear bearing is provided and is positioned at the top of the rotating outer tube.

[0010] In one feasible implementation, the rotating outer tube is further provided with a dust baffle, which is located below the lifting base.

[0011] In one feasible implementation, the rotating outer tube is fitted with an upper retaining spring and a lower retaining spring, the upper retaining spring being matched with the lower limiting sleeve for limiting, and the lower retaining spring being fitted to support the dust baffle.

[0012] In one feasible implementation, two upper limit pins are provided and symmetrically located on both sides of the lifting rod, and both upper limit pins are located in the vertical running channel opened in the rotating outer tube.

[0013] Preferably, the upper limit pin operates between the middle and the top of the vertical running channel.

[0014] In one feasible implementation, a workpiece clamp is inserted between the outer head and the inner head, the workpiece clamp being used to clamp the open end of the workpiece.

[0015] Preferably, the workpiece clamp is provided with a retaining ring cover at the top opening end of the outer sleeve, and the retaining ring cover has an annular retaining ring to cover the edge of the top opening end of the outer sleeve.

[0016] In one possible implementation, the inner mandrel is configured to form a flat top wall to lift the lifted wall of the workpiece fixture.

[0017] The fixture structure disclosed herein, through the setting of linear bearings, guides the sliding of the lifting rod during its up-and-down movement, which can effectively improve the accuracy of linear movement and precisely control and significantly reduce the deviation.

[0018] This invention utilizes the combination of an upper limit pin and a lower limit sleeve to form upper and lower limits with controllable positioning accuracy, thus avoiding the direct reliance on the lifting base and its connecting rod, which have low manufacturing precision, for upper and lower limit positioning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the position (lower position) of the upper and lower parts in this disclosure;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a schematic diagram showing the position (high position) of the upper and lower parts in this disclosure;

[0022] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0023] The figure shows: 1. Rotating outer tube, 101. Vertical running channel, 2. Lifting rod, 3. Lifting base, 4. Connecting rod, 5. Linear bearing, 6. Upper limit pin, 7. Lower limit sleeve, 8. Upper retaining spring, 9. Outer sleeve head, 10. Inner top head, 11. Workpiece, 12. Workpiece clamp, 13. Retaining ring cover, 131. Annular retaining ring, 14. Dust trap, 15. Lower retaining spring. Detailed Implementation

[0024] The technical solutions of specific embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the teachings of the following embodiments are within the protection scope of this utility model.

[0025] refer to Figure 1-4 This utility model provides a fixture structure suitable for a spray painting rail conveyor line, including a rotating outer tube 1, a lifting rod 2 disposed inside the rotating outer tube 1, and a lifting base 3 movably sleeved on the rotating outer tube 1 and fixedly connected to the bottom of the lifting rod 2. The rotating outer tube 1 can be driven to rotate and has a vertical running channel 101 that runs through it. The lifting rod 2 and the lifting base 3 are fixedly connected by a connecting rod 4. Specifically, the connecting rod 4 is vertically mounted at the bottom of the lifting rod 2, and both ends of the connecting rod 4 pass through the lifting rod 2 and the vertical running channel 101 before being welded to the middle of the upper top wall of the lifting base 2. The vertical running channel 101 ensures that when the lifting base 3 is lifted, the connecting rod 4 can drive the lifting rod 2 to move. Simultaneously, the lifting base 3 has a central hole for movably sleeved on the rotating outer tube 1, allowing it to move along the rotating outer tube 1 when lifted.

[0026] A linear bearing 5 is installed between the rotating outer tube 1 and the lifting rod 2 to guide the lifting rod 2. In this embodiment, the linear bearing 5 is installed on the inner wall of the rotating outer tube 1 and is located near the top. In this embodiment, to further optimize the guiding sliding effect, two linear bearings 5 ​​are provided, which are arranged close together in the vertical direction. This forms a guiding sliding distance of twice the distance for the lifting rod 2. Compared with the existing setting without guiding sliding components, this disclosure provides a precise guiding sliding effect for the lifting rod 2 during operation through the linear bearings 5, especially the setting of two close-to-each-other linear bearings 5. This ensures a significant improvement and enhancement of the linear running accuracy of the lifting rod 2 during operation, resulting in a substantial improvement in the overall product quality.

[0027] The lifting rod 2 is provided with an upper limit pin 6 near the lower section, and the lifting base 3 is provided with a lower limit sleeve 7 at the bottom.

[0028] In this disclosure, an upper limit pin 6 is mounted on the lifting rod 2 and passes through the lifting rod 2 radially. This results in two symmetrical upper limit pins 6 on both sides of the lifting rod 2, with the outer ends of both upper limit pins 6 extending out of the corresponding vertical running channel 101. After the lifting rod 2 reaches its maximum position, the upper limit pin 6 abuts against the upper top wall of the vertical running channel 101, thus achieving the upper limit of the lifting stroke. It should be noted that the upper limit pin 6 runs between the middle and top of the vertical running channel 101. This allows the lifting rod 2 to select an appropriate stroke for lifting during operation, rather than necessarily running the entire vertical length of the vertical running channel 101. This shortens the stroke to meet the lifting height requirements while minimizing wasted stroke, effectively reducing the distance the lifting rod 2 travels, thereby reducing the probability of deflection during operation and improving straight-line running accuracy.

[0029] In this disclosure, the lower limit sleeve 7 is fixedly connected to the bottom of the lifting base 3 and movably sleeved on the rotating outer tube 1. When the lifting base 3 is raised, the lower limit sleeve 7 rises along with the lifting base 3. During installation, the top of the lower limit sleeve 7 is welded to the bottom of the lifting base 3, and the bottom of the lower limit sleeve 7 is flat, possessing the machining accuracy required for the lower limit. It can be seen that machining the bottom of the lower limit sleeve 7 to the required lower limit accuracy is much more convenient than precision machining the lifting base 3. At the same time, the rotating outer tube 1 is fitted with an upper retaining spring 8. After the lower stroke is completed, the lower limit sleeve 7 is limited by the upper retaining spring 8, at which time the bottom of the lower limit sleeve 7 abuts against the upper retaining spring 8.

[0030] In this disclosure, the rotating outer tube 1 is fitted with an outer sleeve head 9 at its top, and the lifting rod 2 is fitted with an inner top head 10 at its top. The inner top head 10 is disposed within the outer sleeve head 9 and can be ejected during the lifting process of the lifting rod 2. The outer sleeve head 9 and the inner top head 10 are configured in pairs. During powder spraying, the inner top head 10 is concealed within the outer sleeve head 9. At this time, the open end of the workpiece 11 is clamped onto the workpiece clamp 12, which is inserted into the outer sleeve head 9 and the inner top head 10, thereby completing the clamping and fixing of the workpiece 11. It should be noted that the workpiece clamp 12 is integrated with the workpiece 11, therefore its specific structure will not be described in detail here.

[0031] To prevent the outer edge of the opening end of the outer sleeve head 9 from being directly exposed, the workpiece fixture 12 has been optimized and improved in this disclosure. Specifically, the workpiece fixture 12 is provided with a retaining ring cover 13 at the top opening end of the outer sleeve head 9. The retaining ring cover 13 has an annular retaining ring 131 to cover the edge of the top opening end of the outer sleeve head 9. In this way, when powder is sprayed, the edge of the top opening end of the outer sleeve head 9 is not directly exposed, which can effectively prevent powder immersion.

[0032] To further optimize ejection accuracy and prevent workpiece 11 from being ejected at an angle, the inner mandrel 10 is constructed with a flat top wall to lift the lifting wall of the workpiece fixture 12. The top wall can be precision machined separately to ensure ejection accuracy.

[0033] In this disclosure, the lifting base 3 itself is constructed as a disc-shaped structure with an upper outer edge and a large radial dimension, which can largely block falling dust. To further prevent dust from falling onto the transmission components below, the rotating outer tube 1 is also provided with a dust-blocking disc 14, which is located below the lifting base 3, thereby further optimizing the dust-blocking effect. At the same time, a lower retaining spring 15 located below the upper retaining spring 8 is also fitted onto the rotating outer tube 1, and the lower retaining spring 15 is used to fit and support the dust-blocking disc 14.

[0034] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fixture structure suitable for a spray painting ground rail conveyor line, characterized in that, The device includes a rotating outer tube, a lifting rod disposed inside the rotating outer tube, and a lifting base movably sleeved on the rotating outer tube and fixedly connected to the bottom of the lifting rod. A linear bearing is installed between the rotating outer tube and the lifting rod to guide the lifting rod to slide. An upper limit pin is provided near the lower section of the lifting rod. A lower limit sleeve is provided at the bottom of the lifting base. An outer sleeve is installed at the top of the rotating outer tube, and an inner top is installed at the top of the lifting rod. The inner top is disposed inside the outer sleeve and can be pushed out during the lifting process of the lifting rod.

2. The fixture structure suitable for a spray painting ground rail conveyor line according to claim 1, characterized in that, At least one linear bearing is provided and is located at the top of the rotating outer tube.

3. The fixture structure suitable for a spray painting ground rail conveyor line according to claim 1, characterized in that, The rotating outer tube is also equipped with a dust baffle, which is located below the lifting base.

4. A fixture structure suitable for a spray painting ground rail conveyor line according to claim 3, characterized in that, The rotating outer tube is fitted with an upper retaining spring and a lower retaining spring. The upper retaining spring is matched with the lower limiting sleeve for limiting, and the lower retaining spring is used to support the dust baffle.

5. A fixture structure suitable for a spray painting ground rail conveyor line according to claim 1, characterized in that, Two upper limit pins are provided and are symmetrically located on both sides of the lifting rod, and both upper limit pins are located in the vertical running channel opened in the rotating outer tube.

6. A fixture structure suitable for a spray painting ground rail conveyor line according to claim 5, characterized in that, The upper limit pin operates between the middle and the top of the vertical running channel.

7. A fixture structure suitable for a spray painting ground rail conveyor line according to claim 1, characterized in that, A workpiece clamp is inserted between the outer head and the inner head. The workpiece clamp is used to clamp the open end of the workpiece. A retaining ring cover is provided at the top open end of the outer head of the workpiece clamp. The retaining ring cover has an annular retaining ring to cover the edge of the top open end of the outer head.

8. A fixture structure suitable for a spray painting ground rail conveyor line according to claim 7, characterized in that, The inner mandrel forms a flat top wall to lift the lifted wall of the workpiece fixture.

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