Automatic locking mechanism for roll-over stand

Abstract

The utility model discloses an automatic locking mechanism for a roll-over stand, which comprises a locking mechanism and an unlocking mechanism, the locking mechanism is arranged in an end post of the roll-over stand, and the unlocking mechanism is arranged on the outer side of the end post; according to the locking mechanism, the two locking sliding blocks are symmetrically arranged, force in the direction of the rotating shaft is applied to the locking sliding blocks through the locking springs, so that the abrasion-resistant clamping blocks are tightly attached to the rotating shaft, and the stable and reliable locking effect is achieved; during unlocking, locking can be unlocked only by inserting the adjusting crank to push the unlocking sleeve to slide along the rotating shaft and pushing the unlocking pressing block through the unlocking wedge block to enable the abrasion-resistant clamping block to be separated from the rotating shaft, and operation is easy, convenient and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing equipment technical field especially, relates to a kind of automatic locking mechanism of turnover frame. BACKGROUND

[0002] The main function of the turnover frame is to support and turn over the workpiece for assembly, maintenance or detection operations. However, the existing turnover frame often has problems such as instability and inconvenience during the turning process, especially in situations where the turning angle needs to be precisely controlled.

[0003] Most of the turnover frames on the market currently use manual locking mechanisms, such as bolts and pins. These mechanisms require manual intervention during operation, which is not only time-consuming and labor-intensive but also difficult to ensure the reliability and accuracy of the lock. In addition, with the development of industrial automation and intelligence, the performance requirements for the turnover frame are becoming higher and higher. Traditional manual locking mechanisms have been difficult to meet the needs of modern industrial production, and there is an urgent need for a mechanism that can automatically, quickly and accurately lock the turnover frame to improve production efficiency and safety. SUMMARY

[0004] The utility model aims to overcome the above technical deficiencies and provide an automatic locking mechanism for a turnover frame to solve the problems mentioned in the background.

[0005] To achieve the above technical purpose, the technical solution of the utility model provides an automatic locking mechanism for a turnover frame, which includes a locking mechanism and an unlocking mechanism. The locking mechanism is arranged in the end column of the turnover frame, and the unlocking mechanism is arranged on the outside of the end column. The unlocking mechanism includes a positioning seat and an unlocking sleeve. The end column is provided with a mounting table, and the positioning seat is arranged on the mounting table. The unlocking sleeve is arranged in the positioning seat. The rotating shaft of the turnover frame passes through the locking mechanism and is rotatably arranged in the unlocking sleeve. The locking mechanism tightly fixes the rotating shaft, and the unlocking sleeve slides along the rotating shaft to combine with the locking mechanism to release the lock.

[0006] Furthermore, the locking mechanism includes two locking sliders, which are symmetrically arranged around the rotating shaft. The inner wall of the end column is provided with a guide column and a stop block. The locking slider is provided with a sliding groove radially coinciding with the rotating shaft. The guide column is arranged in the sliding groove. An unlocking pressure block is arranged between the two locking sliders. A connecting rod is arranged between the unlocking pressure block and the locking slider, with both ends hinged to them. The stop block is arranged on the side of the locking slider away from the rotating shaft. A locking spring is arranged between the stop block and the locking slider. A wear-resistant clamp block is arranged on the side of the locking slider adjacent to the rotating shaft.

[0007] Further, the unlocking sleeve comprises a shaft sleeve, the mounting table is provided with an expansion slot, the positioning seat is arranged on the mounting table, the shaft sleeve is provided with a limiting plate, the limiting plate is arranged in the expansion slot, a return spring is arranged between the limiting plate and the end column, the end of the shaft sleeve is provided with an unlocking support plate which is radially coincident with the shaft sleeve, the end of the unlocking support plate is provided with an unlocking wedge, the unlocking wedge is provided with an inclined surface which is matched with the unlocking wedge, and the unlocking wedge pushes the unlocking block to move towards the rotating shaft.

[0008] Further, the unlocking block has two unlocking blocks which are radially arranged around the rotating shaft, and the two ends of the wear-resistant clamp block are respectively hinged to the two connecting rods through the push rods.

[0009] Further, the end of the rotating shaft is arranged in the unlocking sleeve, the end of the rotating shaft is provided with a connecting groove, and the connecting groove is a polygonal prism which is matched with the adjusting handle.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1. The utility model discloses a locking mechanism and an unlocking mechanism are matched, automatic, rapid and accurate locking of the turnover frame is realized, the problems of time-consuming and laborious operation, low locking reliability and precision of the traditional manual locking mechanism are avoided, the locking mechanism adopts two locking sliders which are symmetrically arranged, the locking spring is arranged on the locking slider, the locking slider is pushed to the rotating shaft direction, the wear-resistant clamp block is tightly attached to the rotating shaft, and stable and reliable locking effect is realized, when unlocking, only need to insert the adjusting handle to push the unlocking sleeve to slide along the rotating shaft, the unlocking wedge pushes the unlocking block, the wear-resistant clamp block is separated from the rotating shaft, and the locking is released, and the operation is simple and fast.

[0012] 2. The utility model discloses an adjusting handle is inserted into the positioning seat and pushes the unlocking sleeve, not only realizes the unlocking function, but also the end of the adjusting handle is connected with the rotating shaft, the rotating shaft can be driven to rotate, the turnover frame is rotated to the suitable angle, after the adjusting handle is pulled out, the locking mechanism regrasps and fixes the rotating shaft, and the automatic locking function is realized. ACCURACY

[0013] Figure 1 It is a turnover frame schematic diagram;

[0014] Figure 2 It is an explosion schematic diagram of the utility model discloses a kind of turnover frame automatic locking mechanism;

[0015] Figure 3 It is a locking mechanism schematic diagram of the utility model discloses a kind of turnover frame automatic locking mechanism;

[0016] Figure 4 is an unlocking sleeve schematic diagram of the automatic locking mechanism of the turnover frame provided by the utility model;

[0017] Figure 5 is an unlocking sleeve cross-sectional schematic diagram of the automatic locking mechanism of the turnover frame provided by the utility model;

[0018] Figure 6 is a locking mechanism three-dimensional schematic diagram of the automatic locking mechanism of the turnover frame provided by the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] Example 1

[0021] With reference to Figure 1 , Figure 2 The utility model provides a kind of automatic locking mechanism of turnover frame, including locking mechanism 4 and unlocking mechanism.Locking mechanism includes positioning seat 2 and unlocking sleeve 3, end column 1 is provided with installation platform 101, positioning seat 2 is set on installation platform 101, unlocking sleeve 3 is set in positioning seat 2, the end of rotating shaft 5 of turnover frame passes through locking mechanism 4 inside, and is rotationally set in unlocking sleeve 3;Locking mechanism 4 will rotating shaft 5 be held tightly fixed to realize the locking of turnover frame 7 in normal state;When needing to adjust turnover frame 7, adjust crank 6 is inserted into positioning seat 2 and pushes unlocking sleeve 3 to slide along rotating shaft 5 and is combined with locking mechanism 4 to remove locking, and is connected with the end of rotating shaft 5 and drives it to rotate, and turnover frame 7 is rotated to suitable angle;After adjust crank 6 is pulled out, locking mechanism 4 reholds rotating shaft 5 tightly fixed.

[0022] Locking mechanism 4 includes two locking sliding blocks 401, two locking sliding blocks 401 are symmetrically set with rotating shaft 5 as center, guide column 103 and stopper 104 are set on the inner wall of end column 1, sliding groove 402 that is radially coincident with rotating shaft 5 is set on locking sliding block 401, and guide column 103 is set in sliding groove 402;Unlocking block 404 is set between two locking sliding blocks 401, and connecting rod 405 that is hingedly connected with locking sliding block 401 and unlocking block 404 at both ends is set between locking sliding block 401 and unlocking block 404;Stopper 104 is set on the side of locking sliding block 401 away from rotating shaft 5, and locking spring 403 is set between stopper 104 and locking sliding block 401;Wear-resistant clamp block 406 is set on the side of locking sliding block 401 adjacent to rotating shaft 5, and the friction between locking sliding block 401 and rotating shaft 5 is increased by wear-resistant clamp block 406, so as to improve locking effect.

[0023] In the initial state, the locking spring 403 is in a compressed state, and exerts a force on the locking slider 401 in the direction of the rotating shaft 5, so that the wear-resistant clamp block 406 is tightly attached to the rotating shaft 5, and locking is achieved.

[0024] With reference to Figures 3-5 , the unlocking sleeve 3 comprises a shaft sleeve 301, the mounting table 101 is provided with an expansion groove 102, the positioning seat 2 is arranged on the mounting table 101, the shaft sleeve 301 is provided with a limiting plate 304, the limiting plate 304 is arranged in the expansion groove 102, and the limiting plate 304 and the end column 1 are provided with a reset spring 305; the end of the shaft sleeve 301 is provided with an unlocking support plate 302 which is radially coincident with the shaft sleeve 301, and the end of the unlocking support plate 302 is provided with an unlocking wedge 303. The unlocking pressing block 404 is provided with an inclined surface which cooperates with the unlocking wedge 303.

[0025] The end of the rotating shaft 5 is arranged in the unlocking sleeve 3, the end of the rotating shaft 5 is provided with a connecting groove 501 which is a multi-prism shape and cooperates with the adjusting handle 6; when unlocking, the adjusting handle 6 drives the shaft sleeve 301 to move along the rotating shaft 5 towards the locking mechanism 4, the shaft sleeve 301 drives the unlocking support plate 302 and the unlocking wedge 303 to move synchronously; the unlocking wedge 303 drives the unlocking pressing block 404 to move towards the rotating shaft 5 through the inclined surface, so that the wear-resistant clamp block 406 is separated from the rotating shaft 5, and the locking is released; at this time, the adjusting handle 6 is inserted into the connecting groove 501, and the rotating rotating frame 7 adjusts the adjusting handle 6, so that the rotating shaft 5 can be rotated to a suitable angle, and after the adjusting handle 6 is pulled out, the shaft sleeve 301, the unlocking support plate 302 and the unlocking wedge 303 are reset under the action of the reset spring 305.

[0026] Embodiment 2

[0027] With reference to Figure 6 , on the basis of the embodiment 1, the unlocking pressing block 404 has two, the two unlocking pressing blocks 404 are arranged radially with the rotating shaft 5 as the center, and the two ends of the wear-resistant clamp block 406 are hingedly connected with the two connecting rods 405 through the push rods 407, so that the stress of the two locking sliders 401 is more uniform, and the stability and reliability of unlocking are improved.

[0028] The specific implementation manner of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A mechanism for automatically locking a turntable, comprising a locking mechanism and an unlocking mechanism, the locking mechanism is arranged in an end column of the turntable, and the unlocking mechanism is arranged outside the end column, characterized in that: The unlocking mechanism comprises a positioning seat and an unlocking sleeve, the end column is provided with a mounting table, the positioning seat is arranged on the mounting table, the unlocking sleeve is arranged in the positioning seat, the rotating shaft of the turnover frame passes through the locking mechanism and is arranged in the unlocking sleeve in a rotating mode, the locking mechanism tightly fixes the rotating shaft, and the unlocking sleeve slides along the rotating shaft to combine with the locking mechanism to release the locking.

2. The automatic locking mechanism for a turnover stand according to claim 1, characterized in that: The locking mechanism comprises two locking sliders which are symmetrically arranged around the rotating shaft, the inner wall of the end column is provided with a guide column and a stopper, the locking slider is provided with a sliding groove which is radially coincided with the rotating shaft, the guide column is arranged in the sliding groove, the unlocking block is arranged between the two locking sliders, the connecting rod is arranged between the unlocking block and the locking slider and is hingedly connected to both ends of the unlocking block and the locking slider, the stopper is arranged on the side of the locking slider away from the rotating shaft, the locking spring is arranged between the stopper and the locking slider, and the wear-resistant clamp block is arranged on the side of the locking slider adjacent to the rotating shaft.

3. The automatic locking mechanism for a turnover stand according to claim 2, wherein: The unlocking sleeve comprises a shaft sleeve, the mounting table is provided with an expansion groove, the positioning seat is arranged on the mounting table, the shaft sleeve is provided with a limiting plate, the limiting plate is arranged in the expansion groove, the limiting plate and the end column are provided with a reset spring therebetween, the end of the shaft sleeve is provided with an unlocking support plate which is radially coincided with the shaft sleeve, the end of the unlocking support plate is provided with an unlocking wedge, the unlocking wedge is arranged on the unlocking block and is matched with the inclined surface, and the unlocking wedge pushes the unlocking block to move towards the rotating shaft.

4. A tip-up frame automatic locking mechanism according to claim 2 or 3, characterized in that: The unlocking block has two, the two unlocking blocks are radially arranged around the rotating shaft, and the two ends of the wear-resistant clamp block are hingedly connected to the two connecting rods through the push rods.

5. The automatic locking mechanism for a turnover stand according to claim 4, characterized in that: The end of the rotating shaft is arranged in the unlocking sleeve, the end of the rotating shaft is provided with a connecting groove which is a multi-prism shape matched with the adjusting handle.

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