Transfer carrier achieving automatic opening and closing by means of gravity

Abstract

The utility model discloses a transfer carrier realizing automatic opening and closing by means of gravity, which is used for fixing clamped objects, storing and logistics transportation, and comprises a base and a plurality of brackets arranged on the base at intervals, the central axes of the plurality of brackets coincide, and a pair of clamping arms symmetrically arranged by taking the central axis of the bracket as the center are hinged on each bracket. The transfer carrier has the advantages that the transfer carrier can clamp and fix tubular or cylindrical products by means of the gravity of the tubular or cylindrical products, the carrier can be automatically opened by supporting the tubular or cylindrical products, and the tubular or cylindrical products do not need to be fixed by means of foreign objects. The robot can conveniently achieve full-automatic fastening or dismounting of tubular or cylindrical products, manual assistance is not needed, time and labor are saved, the fastening and dismounting efficiency of the tubular or cylindrical products is greatly improved, then the transferring and conveying efficiency of the tubular or cylindrical products and the production efficiency of enterprises are improved, the safety and reliability of production are improved, and the production cost is reduced. And the product yield is improved.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, and particularly relates to a transfer vehicle that realizes automatic opening and closing by means of gravity. Background Art

[0002] At present, in industrial production, for the transfer and transportation of tubular or columnar products, simple V-shaped or arc-shaped supports are generally adopted, and fixing methods such as auxiliary pressing blocks, steel belts or rope winding are used to fix the tubular or columnar products on the V-shaped or arc-shaped supports to prevent them from falling and ensure the safety of transfer and transportation.

[0003] However, with the development of the social economy and the intensification of market competition, the traditional method of using simple V-shaped or arc-shaped supports and fixing the tubular or columnar products on the V-shaped or arc-shaped supports by means of auxiliary pressing blocks, steel belts or rope winding is increasingly dragging down the production efficiency of enterprises and affecting the market competitiveness of enterprises. In particular, the traditional method of using simple V-shaped or arc-shaped supports and fixing the tubular or columnar products on the V-shaped or arc-shaped supports by means of auxiliary pressing blocks, steel belts or rope winding is difficult to be matched with unmanned automated production lines. The unlocking and fastening of the pressing blocks, steel belts or ropes all require manual operations, which seriously affects the further improvement of the production efficiency of enterprises. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a transfer vehicle that realizes automatic opening and closing by means of gravity, aiming to solve the problem that the existing fixtures for fixing tubular or columnar products must rely on external objects such as pressing blocks, steel belts or ropes to fix the tubular or columnar products. Therefore, manual assistance must be relied on, and the unmanned automation of the fixture for fastening or disassembling the tubular or columnar products cannot be realized, which affects the production efficiency.

[0005] To solve the above problems, the utility model proposes a transfer vehicle that realizes automatic opening and closing by means of gravity for fixing a clamping object, including a base and a plurality of spaced brackets arranged on the base. The central axes of the plurality of brackets coincide. A pair of clamping arms symmetrically arranged about the central axis of the bracket are hinged on each bracket, and supporting blocks are arranged at both the upper and lower ends of the clamping arms.

[0006] When the clamping object presses the supporting block at the lower end of the clamping arm, the clamping arm is driven to rotate, so that the supporting block at the upper end of the clamping arm presses the clamping object, and thus the clamping object is clamped and fixed.

[0007] When the clamping object moves upward and separates from the supporting block at the lower end of the clamping arm, the clamping arm rotates to separate the supporting block at the upper end of the clamping arm from the clamping object.

[0008] In one embodiment, a plurality of guide wheels are arranged on the side surface of the base.

[0009] In one embodiment, a plurality of chutes are provided on the upper surface of the base, which are spaced apart and arranged in a straight line. A sliding plate is slidably installed in the chute along the central axis direction of the bracket. The sliding plate can be detachably and fixedly connected to the base, and the bracket is fixedly connected to the sliding plate.

[0010] In one embodiment, a long hole is provided on the bracket, and a first pin shaft is slidably installed in the long hole. The bracket is hinged to the clamping arm through the first pin shaft.

[0011] In one embodiment, the first pin shaft is located in the middle of the clamping arm. The supporting block includes a first supporting block, a second supporting block and a third supporting block. The first supporting block is located at the upper end of the clamping arm, the second supporting block is located in the middle of the clamping arm, and the third supporting block is located at the lower end of the clamping arm;

[0012] The first supporting block, the second supporting block and the third supporting block are all pressed against the outer wall of the clamped object.

[0013] In one embodiment, a screwing nut is rotatably connected to the upper end of the clamping arm. The first supporting block is fixedly connected to the screwing nut. The self-rotation of the screwing nut drives the first supporting block to approach or move away from the clamping arm.

[0014] In one embodiment, a slider is vertically slidably installed on the bracket. The slider is located at the lower end of the third supporting block and is fixedly connected to the third supporting block;

[0015] The lower end of the clamping arm is hinged to the slider through a second pin shaft;

[0016] When the clamped object presses down the third supporting block, the slider is driven to descend, and the clamping arm is pulled to drive the first pin shaft to slide in the long hole, and the clamping arm rotates to drive the first supporting block and the second supporting block to clamp and fix the clamped object.

[0017] In one embodiment, a screw rod is vertically and fixedly installed on the bracket. A spring is sleeved on the screw rod. The upper end of the spring abuts against the lower surface of the third supporting block, and the lower end of the spring abuts against a nut. The nut is rotatably sleeved on the screw rod.

[0018] In one embodiment, a lifting ring is provided on the upper surface of the base.

[0019] Beneficial effects: The transfer carrier that realizes automatic opening and closing by means of gravity according to the present invention can clamp and fix tubular or cylindrical products by means of the gravity of the tubular or cylindrical products themselves. Lifting the tubular or cylindrical products can cause the carrier to automatically open. There is no need to fix the tubular or cylindrical products with external objects. The full-automatic fastening or disassembly of the tubular or cylindrical products can be realized by a robot without manual assistance, which saves time and effort, greatly improves the fastening and disassembly efficiency of the tubular or cylindrical products, and then improves the transfer and transportation efficiency of the tubular or cylindrical products and the production efficiency of the enterprise. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a transfer vehicle that realizes automatic opening and closing by means of gravity in the present invention after removing the spring and nut;

[0022] Figure 2 is Figure 1 a schematic structural diagram after removing the clamping object;

[0023] Figure 3 is a front view of a transfer vehicle that realizes automatic opening and closing by means of gravity in the present invention, in which the clamping object is fastened;

[0024] Figure 4 is a front view of a transfer vehicle that realizes automatic opening and closing by means of gravity in the present invention, in which the clamping object is disassembled and loosened.

[0025] The description of the reference numerals is as follows:

[0026] 1. Base; 2. Slide groove; 3. Mounting hole; 4. Slide plate; 5. Bracket; 6. Long slot; 7. First pin shaft; 8. Clamping arm; 9. Screw nut; 10. First support block; 11. Guide wheel; 12. Suspension ring; 13. Second support block; 14. Slide block; 15. Second pin shaft; 16. Third support block; 17. Screw; 18. Nut; 19. Spring; 20. Clamping object. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] The present utility model provides a transfer vehicle that realizes automatic opening and closing by means of gravity. The vehicle is used to fixedly clamp the clamping object 20, and the clamping object 20 is a tubular or columnar product.

[0032] Specifically, in an embodiment of the utility model, as Figure 1 and Figure 2 shown, a transfer vehicle that realizes automatic opening and closing by means of gravity includes a base 1 and a plurality of spaced brackets 5 arranged on the base 1. The central axes of the plurality of brackets 5 coincide. Further, a plurality of spaced chutes 2 arranged in a straight line are provided on the upper surface of the base 1. A slide plate 4 is slidably installed in the chute 2 along the central axis direction of the bracket 5. The slide plate 4 can be detachably and fixedly connected to the base 1 by screws. The bracket 5 is fixedly connected to the slide plate 4. With such a design, the distance between two adjacent brackets 5 can be flexibly adjusted according to actual clamping requirements, so as to meet the clamping and fixing requirements of various tubular or columnar products.

[0033] In this embodiment, as Figure 1 and Figure 2 shown, mounting holes 3 are provided on the upper surface of the base 1, and the slide plate 4 is detachably and fixedly connected to the base 1 by screwing the screws into the mounting holes 3.

[0034] In this embodiment, asFigure 1 and Figure 2 As shown in Figure 2 , a pair of clamping arms 8 symmetrically arranged about the central axis of the bracket 5 are hinged on each bracket 5. With this design, the pair of clamping arms 8 rotate and approach each other to clamp and fix tubular or cylindrical products.

[0035] In this embodiment, as Figure 1 and Figure 2 shown, support blocks are provided at both the upper and lower ends of the clamping arm 8. The clamping arm 8 can quickly clamp and fix tubular or cylindrical products through the support blocks. Specifically, when the object 20 presses down on the support block at the lower end of the clamping arm 8, it drives the clamping arm 8 to rotate, causing the support block at the upper end of the clamping arm 8 to press down on the object 20, thereby clamping and fixing the object 20; when the object 20 moves upward and separates from the support block at the lower end of the clamping arm 8, the clamping arm 8 rotates to separate the support block at the upper end of the clamping arm 8 from the object 20.

[0036] In this embodiment, as Figure 1 and Figure 2 shown, a plurality of guide wheels 11 are provided on the side of the base 1. The guide wheels 11 are provided to protect the base 1, enabling the base 1 to make rolling contact with other objects and preventing the base 1 from coming into contact with other objects and being damaged due to severe friction during transportation and transfer.

[0037] In this embodiment, as Figures 1 - 4 shown, a long hole 6 is provided on the bracket 5. A first pin shaft 7 is slidably installed in the long hole 6. The bracket 5 is hinged to the clamping arm 8 through the first pin shaft 7. The first pin shaft 7 is located in the middle of the clamping arm 8. The support block includes a first support block 10, a second support block 13, and a third support block 16. The first support block 10 is located at the upper end of the clamping arm 8, the second support block 13 is located in the middle of the clamping arm 8, and the third support block 16 is located at the lower end of the clamping arm 8; the first support block 10, the second support block 13, and the third support block 16 are all in pressure contact with the outer wall of the object 20. A screw nut 9 is screwed onto the upper end of the clamping arm 8. The first support block 10 is fixedly connected to the screw nut 9. The self-rotation of the screw nut 9 drives the first support block 10 to approach or move away from the clamping arm 8. With this design, the distance between the first support block 10 and the clamping arm 8 can be adjusted according to the shape of the tubular or cylindrical product, so that the first support block 10 can clamp and fix the tubular or cylindrical product.

[0038] In this embodiment, as Figures 1 - 4 shown, a slider 14 is vertically slidably installed on the bracket 5. The slider 14 is located at the lower end of the third support block 16 and is fixedly connected to the third support block 16; the lower end of the clamping arm 8 is hinged to the slider 14 through a second pin shaft 15; when the object 20 presses down on the third support block 16, it drives the slider 14 to descend, pulls the first pin shaft 7 to slide in the long hole 6 through the clamping arm 8, and makes the clamping arm 8 rotate around the first pin shaft 7 to drive the first support block 10 and the second support block 13 to clamp and fix the object 20.

[0039] In this embodiment, as Figure 3 and Figure 4 shown, a screw rod 17 is vertically and fixedly installed on the bracket 5. A spring 19 is sleeved on the screw rod 17. The upper end of the spring 19 abuts against the lower surface of the third supporting block 16, and the lower end of the spring 19 abuts against a nut 18. The nut 18 is screwed on the screw rod 17. When it is necessary to reduce the clamping force of the clamping arm 8 on tubular or cylindrical products, the nut 18 is screwed upward to further compress the spring 19, increasing the jacking force of the spring 19 on the third supporting block 16, and then reducing the downward pressure received by the third supporting block 16. The reduction of the downward pressure received by the third supporting block 16 causes the clamping force of the clamping arm 8 on the tubular or cylindrical products to decrease accordingly. On the contrary, screwing the nut 18 downward can increase the clamping force of the clamping arm 8 on the tubular or cylindrical products. There are two purposes for designing the clamping force of the clamping arm 8 on the tubular or cylindrical products to be adjustable: one is to avoid damaging the products due to excessive clamping force, especially some hollow tubular or cylindrical products, which are not easy to clamp too tightly, otherwise the outer wall of the products will be deformed; the other is that in some cases, the clamped tubular or cylindrical products need to rotate, and at this time, too tight clamping will cause difficulties in product rotation.

[0040] In this embodiment, a lifting ring 12 is arranged on the upper surface of the base 1. Such a design facilitates the lifting and transportation of the base 1.

[0041] Working principle: The center of gravity of the clamping arm 8 is located above the first pin shaft 7 on the clamping arm 8. Therefore, when the clamping object 20 is not placed on the carrier of this embodiment, a transfer carrier that realizes automatic opening and closing by means of gravity in this embodiment is in an open state, as Figure 4 shown; after the clamping object 20 is placed on the carrier of this embodiment, the clamping object 20 presses down the third supporting block 16 to drive the clamping arm 8 to rotate around the first pin shaft 7. The first supporting block 10 and the second supporting block 13 are used to cooperate with the third supporting block 16, and the clamping object 20 is clamped and fixed by means of the gravity of the clamping object 20 itself with a pair of clamping arms 8; when the clamping object 20 is lifted, the pressure received by the third supporting block 16 decreases, and the clamping arm 8 rotates and opens again under its own weight, facilitating the separation of the clamping object 20 from the carrier, so as to realize the automatic opening and closing of the carrier by means of gravity, without the need to fix tubular or cylindrical products with external objects. Therefore, the clamping object 20 can be taken away from or placed on the carrier by a robot, realizing the full-automatic fastening or disassembly of tubular or cylindrical products without manual assistance, saving time and effort, greatly improving the fastening and disassembly efficiency of tubular or cylindrical products, and then improving the transfer and transportation efficiency of tubular or cylindrical products and the production efficiency of the enterprise.

[0042] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A transfer vehicle that realizes automatic opening and closing by means of gravity and is used for fixedly clamping objects, characterized in that, It includes a base and a plurality of brackets arranged at intervals on the base. The central axes of the plurality of brackets coincide. A pair of clamping arms symmetrically arranged around the central axis of the bracket are hinged on each bracket. Support blocks are provided at both the upper and lower ends of the clamping arms; When the object to be clamped presses down the support block at the lower end of the clamping arm, it drives the clamping arm to rotate, so that the support block at the upper end of the clamping arm presses down the object to be clamped, thereby clamping and fixing the object to be clamped; When the object to be clamped moves upward and separates from the support block at the lower end of the clamping arm, the clamping arm rotates to separate the support block at the upper end of the clamping arm from the object to be clamped.

2. The automatic opening and closing transfer vehicle realized by means of gravity according to claim 1, wherein, A plurality of guide wheels are provided on the side surface of the base.

3. The automatic opening and closing transfer vehicle achieved by means of gravity according to claim 1, wherein A plurality of chutes arranged at intervals and arranged in a straight line are provided on the upper surface of the base. A slide plate is slidably installed in the chute along the central axis direction of the bracket. The slide plate can be detachably and fixedly connected to the base, and the bracket is fixedly connected to the slide plate.

4. A transfer vehicle that realizes automatic opening and closing by means of gravity as described in claim 1, characterized in that A long hole is provided on the bracket, and a pin shaft I is slidably installed in the long hole. The bracket is hinged to the clamping arm through the pin shaft I.

5. The transfer vehicle that realizes automatic opening and closing by means of gravity according to claim 4, characterized in that, The pin shaft I is located in the middle of the clamping arm. The support block includes support block I, support block II and support block III. Support block I is located at the upper end of the clamping arm, support block II is located in the middle of the clamping arm, and support block III is located at the lower end of the clamping arm; Support block I, support block II and support block III are all in pressure contact with the outer wall of the object to be clamped.

6. The automatic opening and closing transfer vehicle realized by means of gravity according to claim 5, wherein A screw nut is screwed at the upper end of the clamping arm. Support block I is fixedly connected to the screw nut. The self-rotation of the screw nut drives support block I to approach or move away from the clamping arm.

7. The automatic opening and closing transfer vehicle achieved by means of gravity as described in claim 5, wherein A slider is vertically slidably installed on the bracket. The slider is located at the lower end of support block III and is fixedly connected to support block III; The lower end of the clamping arm is hinged to the slider through a pin shaft II; When the object to be clamped presses down support block III, it drives the slider to descend, pulls the pin shaft I to slide in the long hole through the clamping arm, and makes the clamping arm rotate to drive support block I and support block II to clamp and fix the object to be clamped.

8. The automatic opening and closing transfer vehicle realized by means of gravity according to claim 7, characterized in that, A screw rod is vertically and fixedly installed on the bracket. A spring is sleeved on the screw rod. The upper end of the spring abuts against the lower surface of support block III, and the lower end of the spring abuts against a nut. The nut is sleeved on the screw rod.

9. The automatic opening and closing transfer vehicle realized by means of gravity according to claim 1, characterized in that, A lifting ring is provided on the upper surface of the base.

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