Gantry type lifting transfer mechanism

Abstract

The utility model discloses a gantry type lifting transfer mechanism which comprises a portal frame, a translation seat movably matched on the portal frame, a vertical beam movably matched on the translation seat, a clamping jaw mechanism installed at the bottom end of the vertical beam, a translation driving unit arranged between the translation seat and the portal frame, and a lifting driving unit arranged between the vertical beam and the translation seat. The clamping jaw mechanism comprises a clamping jaw platform and a pair of clamping jaws movably matched on the clamping jaw platform, each clamping jaw is connected with a rack, the pair of racks are meshed with the same gear, a sliding table is movably matched on the clamping jaw platform, an air cylinder is arranged on the sliding table, the air cylinder is connected with one clamping jaw, and the sliding table is matched on the lead screw. When the minimum distance between the pair of clamping jaws is adjusted, the lead screw drives the sliding table to translate, and the air cylinder translates along with the sliding table. The air cylinder drives the clamping jaw connected with the air cylinder to translate, and the clamping jaw drives the other clamping jaw to translate through the rack and the gear, so that the minimum distance between the pair of clamping jaws is adjusted to adapt to products with different sizes.

Description

Technical Field

[0001] The utility model relates to equipment for production, in particular to equipment for transferring products. Background Art

[0002] For a gantry type lifting transfer machine, its translation mechanism is installed on a gantry frame, the lifting mechanism is installed on the translation mechanism, and a clamp is installed at the lower end of the lifting mechanism. The lifting mechanism drives the clamp to descend. After the clamp holds the product, it ascends. Driven by the translation mechanism, the product is transferred to a predetermined station. Among them, the clamp includes a pair of clamping jaws. The displacement amplitude of the pair of clamping jaws from opening to closing and from closing to opening is fixed. The maximum distance after the pair of clamping jaws open and the minimum distance after closing are also fixed. In order to adapt to products of different sizes, workers need to manually adjust the minimum distance or the maximum distance between the pair of clamping jaws. During the adjustment, the gantry type lifting transfer machine needs to stop, thus, it is not conducive to improving work efficiency. Summary of the Utility Model

[0003] The technical problem solved by the utility model: For a gantry type lifting transfer machine, in order to adapt to products of different sizes, workers need to manually adjust the minimum distance or the maximum distance between a pair of clamping jaws. During the adjustment, the gantry type lifting transfer machine needs to stop, thus, it is not conducive to improving work efficiency.

[0004] To solve the above technical problem, the utility model provides the following technical solution: A gantry type lifting transfer mechanism, including a gantry frame, a translation seat movably fitted on the gantry frame, a vertical beam movably fitted on the translation seat, and a clamp mechanism installed at the bottom end of the vertical beam. A translation driving unit is provided between the translation seat and the gantry frame, and a lifting driving unit is provided between the vertical beam and the translation seat. The clamp mechanism includes a clamp platform, a pair of clamping jaws movably fitted on the clamp platform. Each clamping jaw is fixedly connected with a rack for the clamping jaw. The racks for the clamping jaws of the pair of clamping jaws are engaged with the same gear for the clamping jaw. The gear for the clamping jaw is installed on the clamp platform. A sliding table is movably fitted on the clamp platform. A cylinder for the clamping jaw is provided on the sliding table. The cylinder for the clamping jaw is connected with any one of the pair of clamping jaws. The sliding table is fitted on a lead screw. The lead screw is pivotally connected to the clamp platform. The lead screw is driven by a motor for the lead screw.

[0005] According to the above technical solution, when it is necessary to adjust the minimum distance or the maximum distance between the pair of clamping jaws, the motor for the lead screw drives the lead screw to rotate. The lead screw drives the sliding table to translate. The cylinder for the clamping jaw translates along with the sliding table. The cylinder for the clamping jaw drives the clamping jaw connected thereto to translate. This clamping jaw drives the other clamping jaw to translate through the rack for the clamping jaw and the gear for the clamping jaw. Thus, the minimum distance or the maximum distance between the pair of clamping jaws is adjusted to adapt to products of different sizes.

[0006] When clamping a product, driven by the translation drive unit, the translation seat translates along the gantry, so that a pair of jaws are located above the product. Driven by the lifting drive unit, the vertical beam descends, and the pair of jaws descend accordingly, so that the product is located between the pair of opened jaws. The jaws are actuated by cylinders, driving one jaw to approach the other jaw. Since each jaw is fixedly connected with a rack for the jaw, the racks for the pair of jaws mesh with the same gear for the jaw, therefore, while one jaw approaches the other jaw, the other jaw simultaneously approaches this jaw, and the pair of jaws clamp the product.

[0007] The translation drive unit includes a rack for translation fixed on the gantry, a motor for translation installed on the translation seat, and a gear for translation installed on the motor for translation. The gear for translation meshes with the rack for translation. Driven by the motor for translation, the gear for translation rolls along the rack for translation, driving the translation seat to translate along the gantry.

[0008] The lifting drive unit includes a motor for lifting fixed on the translation seat, a gear for lifting installed on the motor for lifting, and a rack for lifting fixed on the vertical beam. The rack for lifting meshes with the gear for lifting. Driven by the motor for lifting, the gear for lifting drives the rack for lifting to move up and down, and the rack for lifting drives the vertical beam to move up and down, and the jaw mechanism moves up and down accordingly.

[0009] At the top of each jaw, there is a top plate for the jaw. The top plate for the jaw is installed with a slider for the jaw. The slider for the jaw cooperates with a slide rail for the jaw. The slide rail for the jaw is installed at the bottom of the jaw platform. The rack for the jaw is fixed on the top plate for the jaw and is located below the jaw platform. The gear for the jaw is installed at the bottom of the jaw platform; a relief hole is opened on the jaw platform. The cylinder for the jaw is connected with the jaw platform of one jaw through a connecting piece for the jaw. The connecting piece for the jaw passes through the relief hole.

[0010] On the jaw platform, there is a guide rail for the slide table. The slide table cooperates with the guide rail for the slide table. A bearing seat is installed on the jaw platform. The lead screw is pivotally connected to the jaw platform through the bearing seat.

[0011] At the clamping part of each jaw, there is a lifting slide plate. On the clamping part of the jaw, there is a vertical slide rail. The lifting slide plate is fitted on the vertical slide rail. When the pair of jaws clamp the product, the pair of lifting slide plates are in direct contact with the product. When the pair of jaws rise, under the action of gravity, the product and the pair of lifting slide plates descend to the lowest position. After the product is transferred to the predetermined position, the pair of jaws and the clamped product descend. After the product touches the ground, the lifting slide plates rise relative to the jaws. In this way, the pair of jaws can continue to descend. Then, the pair of jaws open to release the product. In this way, it can be avoided that: first, when the product has not touched the ground, the pair of jaws release the product, resulting in the product being impacted; second, after the product touches the ground, the pair of jaws continue to descend, resulting in friction between the jaws and the product and damaging the product. Description of the Drawings

[0012] The following further describes the present utility model in conjunction with the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of a gantry lifting and transferring mechanism;

[0014] Figure 2 is Figure 1 a schematic diagram after the middle guardrail 11 and the ladder 12 are hidden;

[0015] Figure 3 It is a schematic diagram of the gantry 10;

[0016] Figure 4 It is a schematic diagram of the combined structure of the translation base 20, the vertical beam 30, and the jaw mechanism;

[0017] Figure 5 is Figure 4 a schematic diagram of the combined structure of the translation base 20, the vertical beam 30, and the jaw mechanism observed from the rear in

[0018] Figure 6 It is a schematic diagram of the jaw mechanism;

[0019] Figure 7 is Figure 6 a schematic diagram of the jaw mechanism observed from below in

[0020] Figure 8 is Figure 6 a schematic diagram of the jaw mechanism observed from above in

[0021] Symbol description in the figure:

[0022] 10, gantry; 11, guardrail; 12, ladder;

[0023] 20, translation base; 21, rack for translation; 22, motor for translation; 23, gear for translation;

[0024] 30, vertical beam; 31, motor for lifting; 33, rack for lifting;

[0025] 40, jaw platform; 41, slide; 42, cylinder for jaw; 43, lead screw; 44, motor for lead screw; 45, relief hole; 46, guide rail for slide; 47, bearing seat;

[0026] 50, jaw; 51, rack for jaw; 52, gear for jaw; 53, top plate of jaw; 54, slider of jaw; 55, slide rail of jaw; 56, lifting slide plate; 57, vertical slide rail. Specific embodiments

[0027] In combination with Figure 2 , Figure 6 , Figure 7, the gantry - type lifting and transfer mechanism includes a gantry 10, a translation seat 20 movably fitted on the gantry, a vertical beam 30 movably fitted on the translation seat, and a jaw mechanism installed at the bottom end of the vertical beam. A translation driving unit is provided between the translation seat and the gantry, and a lifting driving unit is provided between the vertical beam and the translation seat. The jaw mechanism includes a jaw platform 40 and a pair of jaws 50 movably fitted on the jaw platform. Each jaw is fixedly connected with a rack 51 for the jaw, and the racks for the jaws of the pair of jaws are engaged with the same gear 52 for the jaw. The gear for the jaw is installed on the jaw platform. A slide table 41 is movably fitted on the jaw platform, and a cylinder 42 for the jaw is provided on the slide table. The cylinder for the jaw is connected to any one of the pair of jaws. The slide table is fitted on a lead screw 43, the lead screw is pivotally connected to the jaw platform, and the lead screw is driven by a motor 44 for the lead screw.

[0028] As Figure 1 , the gantry 10 is provided with a guardrail 11 and a ladder 12.

[0029] Combined with Figure 2 , Figure 4 , Figure 5 , the translation driving unit includes a rack 21 for translation fixed on the gantry 10, a motor 22 for translation installed on the translation seat 20, and a gear 23 for translation installed on the motor for translation. The gear for translation is engaged with the rack for translation.

[0030] The lifting driving unit includes a motor 31 for lifting fixed on the translation seat 20, a gear for lifting installed on the motor for lifting, and a rack 33 for lifting fixed on the vertical beam 30. The rack for lifting is engaged with the gear for lifting.

[0031] Combined with Figures 6 to 8 , at the top of each jaw 50, there is a top plate 53 for the jaw. The top plate for the jaw is installed with a slide block 54 for the jaw. The slide block for the jaw is fitted with a slide rail 55 for the jaw. The slide rail for the jaw is installed at the bottom of the jaw platform 40. The rack 51 for the jaw is fixed on the top plate for the jaw and is located below the jaw platform. The gear 52 for the jaw is installed at the bottom of the jaw platform; the jaw platform is provided with a relief hole 45, and the cylinder for the jaw is connected to the jaw platform of one jaw through a jaw connecting piece, and the jaw connecting piece passes through the relief hole.

[0032] The jaw platform 40 is provided with a guide rail 46 for the slide table. The slide table 41 is fitted with the guide rail for the slide table. A bearing block 47 is installed on the jaw platform, and the lead screw 43 is pivotally connected to the jaw platform through the bearing block.

[0033] At the clamping part of each jaw 50, there is a lifting slide plate 56, and a vertical slide rail 57 is provided at the clamping part of the jaw. The lifting slide plate is fitted on the vertical slide rail.

[0034] When it is necessary to adjust the minimum distance or the maximum distance between a pair of clamping jaws 50, the screw rod is driven by a motor 44 to rotate the screw rod 43. The screw rod drives the slide table 41 to translate, and the clamping jaws are translated with the slide table by a cylinder 42. The cylinder for the clamping jaws drives the clamping jaws connected thereto to translate. The clamping jaws drive another clamping jaw to translate through a rack 51 for the clamping jaws and a gear 52 for the clamping jaws. In this way, the minimum distance or the maximum distance between a pair of clamping jaws 50 is adjusted to adapt to products of different sizes.

[0035] When clamping a product, driven by a translation motor 22, a translation gear 23 rolls along a translation rack 21 to drive a translation seat 20 to translate along a gantry 10, so that a pair of clamping jaws 50 are located above the product. Driven by a lifting motor 31, a lifting gear drives a lifting rack 33 to lift and lower. The lifting rack drives a vertical beam 30 to lift and lower, and the clamping jaw mechanism follows to lift and lower. The vertical beam 30 descends, and a pair of clamping jaws 50 follow to descend, so that the product is located between the pair of opened clamping jaws. The cylinder 42 for the clamping jaws acts to drive one clamping jaw to approach the other clamping jaw. Since each clamping jaw is fixedly connected with a rack 51 for the clamping jaws, the racks 51 for the clamping jaws of the pair of clamping jaws are engaged with the same gear 52 for the clamping jaws. Therefore, while one clamping jaw approaches the other clamping jaw, the other clamping jaw also approaches the clamping jaw at the same time, and the pair of clamping jaws clamp the product.

[0036] A pair of clamping jaws 50 rise. Under the action of gravity, the product and a pair of lifting slide plates 56 descend to the lowest position. After the product is transferred to a predetermined position, the pair of clamping jaws 50 and the clamped product descend. After the product lands on the ground, the lifting slide plates 56 rise relative to the clamping jaws 50. In this way, the pair of clamping jaws 50 can continue to descend. Then, the pair of clamping jaws 50 open to release the product.

[0037] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and the application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. Gantry lifting and transfer mechanism, comprising a gantry (10), a translation seat (20) movably fitted on the gantry, a vertical beam (30) movably fitted on the translation seat, and a jaw mechanism installed at the bottom end of the vertical beam. A translation drive unit is provided between the translation seat and the gantry, and a lifting drive unit is provided between the vertical beam and the translation seat. The jaw mechanism includes a jaw platform (40) and a pair of jaws (50) movably fitted on the jaw platform. Each jaw is fixedly connected with a rack for the jaw (51), and the racks for the jaws of the pair of jaws are engaged with the same gear for the jaw (52). The gear for the jaw is installed on the jaw platform, and it is characterized in that: A slide table (41) is movably fitted on the jaw platform. A cylinder for the jaw (42) is provided on the slide table. The cylinder for the jaw is connected to any one of a pair of jaws. The slide table is fitted on a lead screw (43). The lead screw is pivotally connected to the jaw platform and is driven by a motor for the lead screw (44).

2. The gantry lifting and transferring mechanism according to claim 1, wherein: The translation drive unit includes a rack for translation (21) fixed on the gantry (10), a motor for translation (22) installed on the translation base (20), and a gear for translation (23) installed on the motor for translation. The gear for translation meshes with the rack for translation.

3. The gantry type lifting and transferring mechanism according to claim 1, wherein: The lifting drive unit includes a motor for lifting (31) fixed on the translation base (20), a gear for lifting installed on the motor for lifting, and a rack for lifting (33) fixed on the vertical beam (30). The rack for lifting meshes with the gear for lifting.

4. The gantry type lifting and transferring mechanism according to claim 1, characterized in that: At the top of each jaw (50), there is a jaw top plate (53). A jaw slide block (54) is installed on the jaw top plate. The jaw slide block is fitted with a jaw slide rail (55). The jaw slide rail is installed at the bottom of the jaw platform (40). A rack for the jaw (51) is fixed on the jaw top plate and is located below the jaw platform. A gear for the jaw (52) is installed at the bottom of the jaw platform. A relief hole (45) is formed in the jaw platform. The cylinder for the jaw is connected to the jaw platform of one jaw through a jaw connecting member. The jaw connecting member passes through the relief hole.

5. The gantry lifting and transferring mechanism according to claim 1, wherein: A guide rail for the slide table (46) is provided on the jaw platform (40). The slide table (41) is fitted with the guide rail for the slide table. A bearing block (47) is installed on the jaw platform. The lead screw (43) is pivotally connected to the jaw platform through the bearing block.

6. The gantry lifting and transferring mechanism according to claim 1, characterized in that: At the clamping part of each jaw (50), there is a lifting slide plate (56). A vertical slide rail (57) is provided at the clamping part of the jaw. The lifting slide plate is fitted on the vertical slide rail.

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