Skip car positioning device

Abstract

The utility model provides a skip car positioning device which is provided with a main frame, a U-shaped skip car limiting space is formed in the main frame, a locking structure and a rotary driver are arranged at the opening end of the skip car limiting space and on a longitudinal beam of the skip car limiting space, the locking structure comprises a rotating shaft and a limiting arm which are in L-shaped connection, and the rotating shaft is parallel to the extending direction of the longitudinal beam. The rotating driver is in driving connection with the rotating shaft, a photoelectric switch is arranged on the side wall, facing the skip car limiting space, of the cross beam, the photoelectric switch is in communication connection with the rotating driver, and when the skip car enters the skip car limiting space and moves in place to trigger the photoelectric switch, the rotating driver can be controlled to drive the rotating shaft to rotate and drive the limiting arm to move to be horizontal; and the skip car is automatically locked in the skip car limiting space. According to the skip car positioning device, the main frame can be fixed to the feeding and discharging position, after the skip car is fed into the skip car limiting space, the skip car can be automatically locked in the skip car limiting space, the stability of the skip car during feeding and discharging is guaranteed, and the production efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, and particularly relates to a positioning device for a material truck. Background Art

[0002] The main technological processes for machining gear parts generally include: forging blanking → normalizing → finish turning → gear shaping → chamfering → hobbing → shaving → (welding) → heat treatment → grinding → conjugate dressing. Among them, different technological processes require different equipment and are carried out in different production workshops. In traditional industrial production, gear blanks are generally loaded into a material truck, and the material truck is manually pushed to transfer the gear blanks to the corresponding production workshop, and then the gear blanks are manually carried down from the material truck, which is time-consuming and laborious.

[0003] With the advancement of industrial automation, more and more manufacturers have launched automated production lines. By designing an automated robotic arm, the automatic handling of gear blanks is realized. Among them, for the convenience of pushing the material truck, the material truck is generally provided with highly flexible wheels. During the process of the robotic arm automatically handling gear blanks, it is easy to accidentally push the material truck, resulting in the material truck deviating from the loading and unloading position, affecting the execution effectiveness of loading and unloading. Therefore, some material trucks are also provided with wheels with a locking function, but the locking of the wheels still needs to be manually executed. Manual operation is prone to omission, and some accidental collisions during production will still accidentally push the material truck with the locked wheels, resulting in insufficient reliability of the material truck positioning and insufficient reliability of the automation implementation, which will reduce production efficiency. Summary of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a positioning device for a material truck to solve the problem that the insufficient reliability of the material truck positioning in the prior art leads to insufficient reliability of the automation implementation of the production line and reduces production efficiency.

[0005] On the one hand, the utility model provides a positioning device for a material truck, including: a main frame, the main frame includes two longitudinal beams and a cross beam connected to the first ends of the two longitudinal beams to form a U-shaped material truck limiting space, wherein,

[0006] A locking structure and a rotary driver are provided at the second end of at least one of the longitudinal beams. The locking structure includes a rotating shaft and a limiting arm connected in an L shape. The rotating shaft is parallel to the extending direction of the longitudinal beam, and the rotary driver is drivingly connected to the rotating shaft;

[0007] A photoelectric switch is provided on the side wall of the cross beam facing the material truck limiting space, and the photoelectric switch is communicatively connected to the rotary driver.

[0008] Optionally, the locking structure and the rotary driver are provided on both of the longitudinal beams, two photoelectric switches are horizontally spaced on the cross beam, and the two photoelectric switches are communicatively connected to the two rotary drivers respectively.

[0009] Optionally, the rotary drive includes any one of a rotary motor and a rotary cylinder.

[0010] Optionally, the main frame further includes legs, and the fixed structure formed by the longitudinal beam and the cross beam is fixedly connected to the top of the legs.

[0011] Optionally, the installation positions of the legs include the position behind the second end of the longitudinal beam and the connection area between the longitudinal beam and the cross beam.

[0012] Optionally, positioning ear plates are fixedly arranged on the side of the legs, the positioning ear plates are flush with the lower end surface of the legs, and positioning holes corresponding to the ground positioning points are arranged on the positioning ear plates.

[0013] Optionally, the positioning ear plate includes an angle cleat connector.

[0014] Optionally, the rotary drive is also communicatively connected to an unlocking controller, and the unlocking controller is fixedly arranged on the main frame.

[0015] Optionally, the inner side plate of the longitudinal beam also extends out of the main body of the longitudinal beam to form a partition plate at the end of the second end of the longitudinal beam. The rotary drive is arranged at the outer side of the partition plate, and the inner side surface of the partition plate is an inclined surface inclined towards the outer side of the longitudinal beam.

[0016] The cart positioning device provided by the present utility model includes a main frame, which includes two longitudinal beams and a cross beam connected to the first ends of the two longitudinal beams. Fixing the main frame to the alignment station can form a U-shaped cart limiting space. Among them, at least one of the second ends of the longitudinal beams is provided with a locking structure and a rotary drive. The locking structure includes a rotating shaft and a limiting arm connected in an L shape. The rotating shaft is parallel to the extending direction of the longitudinal beam, and the rotary drive is drivingly connected to the rotating shaft; a photoelectric switch is arranged on the side wall of the cross beam facing the cart limiting space, and the photoelectric switch is communicatively connected to the rotary drive. When the cart enters the cart limiting space and moves in place to trigger the photoelectric switch, in response to the trigger signal of the photoelectric switch, the rotary drive drives the rotating shaft to rotate, which can drive the limiting arm to move to the horizontal position, and automatically lock the cart in the cart limiting space in the cart entry and exit direction. The cart positioning device provided by the present utility model can fix the main frame at the loading and unloading position. When the cart runs to the cart limiting space defined by the main frame and triggers the photoelectric switch, the cart can be automatically locked in the cart limiting space, which can effectively ensure the stability of the cart during loading and unloading, provide guarantee for the realization of production line automation, and improve production efficiency. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the main structure of the cart positioning device in the present utility model;

[0018] Figure 2 This is a schematic diagram of the implementation principle of the trolley positioning device in the present utility model.

[0019] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific Embodiments

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] To solve the problem that the reliability of trolley positioning in the prior art is insufficient, resulting in insufficient automation implementation effect of the production line and reducing production efficiency. The present utility model provides a trolley positioning device, which is provided with a main frame. The main frame forms a U-shaped trolley limiting space and can fixedly set the positions of the loading and unloading stations. At the open end of the trolley limiting space, a locking structure and a rotary drive are provided on its longitudinal beam. The locking structure includes a rotating shaft and a limiting arm connected in an L shape. The rotating shaft is parallel to the extending direction of the longitudinal beam. The rotary drive is drivingly connected to the rotating shaft. A photoelectric switch is provided on the side wall of its cross beam facing the trolley limiting space. The photoelectric switch is communicatively connected to the rotary drive. When the trolley enters the trolley limiting space and moves into place to trigger the photoelectric switch, it can control the rotary drive to drive the rotating shaft to rotate, drive the limiting arm to move to the horizontal position, and automatically lock the trolley in the trolley limiting space to ensure the stability of the trolley during loading and unloading and ensure production efficiency.

[0024] Specifically, as Figure 1 and Figure 2As shown in the figure, in this embodiment, the wagon positioning device includes: a main frame, the main frame includes two longitudinal beams 11 and a cross beam 12 connected to the first ends of the two longitudinal beams 11 to form a U-shaped wagon limiting space. Among them, a locking structure and a rotary drive 21 are provided at the second ends of the longitudinal beams. The locking structure includes a rotating shaft 32 and a limiting arm 31 connected in an L shape. The rotating shaft 32 is parallel to the extending direction of the longitudinal beam 11. The rotary drive 21 is drivingly connected to the rotating shaft 32. The second ends of the longitudinal beams 11 correspond to the open end of the wagon limiting space. A photoelectric switch 22 is provided on the side wall of the cross beam 12 facing the wagon limiting space. The photoelectric switch 22 is communicatively connected to the rotary drive 21.

[0025] After the wagon 01 is pushed into the wagon limiting space, the side wall of the wagon 01 abuts against the photoelectric switch 22, triggering the photoelectric switch 22 to act. The photoelectric switch 22 automatically drives the rotary drive 21 to act. The rotary drive 21 drives the rotating shaft 32 to rotate, and then drives the limiting arm 31 to rotate from the hanging state to the horizontal state, and horizontally points to the orientation of the other longitudinal beam, parallel to the cross beam 22, sealing the opening of the wagon limiting space, thereby locking the wagon 01 in the longitudinal direction. In the transverse direction, the two longitudinal beams 11 are used to achieve limiting and fixing. After locking and positioning, the wheels 011 of the wagon 01 can select high-flexibility wheels, which can improve the transfer efficiency of the wagon.

[0026] To facilitate the feeding of the wagon 01 into the wagon limiting space and the installation of the rotary drive 21, in this embodiment, the inner side plate of the longitudinal beam 11 also extends out of the main body of the longitudinal beam 11 to form a partition plate 111 at the end of the second end of the longitudinal beam 11. The rotary drive 21 is arranged at the outer position of the partition plate 111. The inner side surface of the partition plate 111 is an inclined surface inclined towards the outside of the longitudinal beam 11. This inclined surface can be used to guide the orientation and positioning of the wagon 01, facilitating the entry of the wagon into the warehouse, reducing the requirement for the alignment accuracy between the wagon 01 and the wagon limiting space, and improving the operation convenience.

[0027] To improve the locking effect, in this embodiment, locking structures and rotary drives are provided on both longitudinal beams 11. Two photoelectric switches 22 are horizontally spaced on the cross beam 12, and the two photoelectric switches are communicatively connected to the two rotary drives 21 respectively, which can achieve double-sided locking, improve the locking stability, and the two groups of locking designs can operate independently. When one of the groups fails, the other group can still work normally, ensuring the effectiveness of the locking and improving the fault tolerance rate of the system.

[0028] Among them, during the process of the limiting arm 31 of the locking structure rotating from the hanging state to the horizontal state, the locking of the wagon can be realized. Correspondingly, in this embodiment, the rotary drive includes a rotary cylinder, which can meet the driving accuracy requirements of the locking structure, has a simple structure and a low implementation cost. In an alternative embodiment, the rotary drive includes a rotary motor, which has a fast driving speed and can be specifically selected according to specific requirements.

[0029] The rotating shaft 32 can be coaxially fixedly connected with the output shaft of the rotating cylinder or the rotating motor by means of a coupling, a latch, etc., or the output shaft of the rotating cylinder or the rotating motor can be directly reused as the rotating shaft.

[0030] The material cart 01 has a certain height, and the limiting fixation of the material cart 01 is mainly connected to the main body of the material cart 01. Correspondingly, in this embodiment, the main frame also includes a support leg 13, and the fixed structure composed of the longitudinal beam 11 and the cross beam 12 is fixedly connected to the top of the support leg 13, which can lift the limiting space of the material cart to the same height as the main body of the material cart 01, and at the same time reduce the material demand of the main frame.

[0031] To ensure the supporting effect, in this embodiment, the support legs 13 are arranged at positions including the rear position of the second end of the longitudinal beam 11 and the connection area between the longitudinal beam 11 and the cross beam 12, and the cross beam and the longitudinal beam can be supported by four support legs.

[0032] In order to improve the fixation reliability of the main frame, in the present embodiment, a positioning ear plate 14 is also fixedly provided on the side of the support leg 13. The positioning ear plate 14 is flush with the lower end surface of the support leg 13, and a positioning hole corresponding to the ground positioning point is provided on the positioning ear plate 14. The positioning ear plate 14 can be fixed to the ground by bolts, or locked and fixed to the ground by a ground hook lock, so as to reduce the risk of the main frame being displaced due to the impact of the material truck on the main frame, or the impact of the main frame due to the accidental operation of the workshop such as the robot arm or the accidental collision by personnel.

[0033] Specifically, the positioning ear plate 14 includes a wildebeest connector, one connecting plate of which is fixed to the supporting leg 13 by bolts, and the other connecting plate of the wildebeest connector constitutes a horizontal bottom plate of the positioning ear plate 14 .

[0034] To facilitate unlocking, an unlocking controller (not shown in the figure) is also provided on the main frame, and the rotary driver is also connected to the unlocking controller. When the material is unloaded and the material cart needs to be removed, the rotary driver is controlled to rotate in the opposite direction by operating the unlocking controller, and the limit arm 31 is adjusted from the horizontal posture to the drooping posture. Among them, when the rotary driver is a rotary cylinder, the control of the rotary cylinder is simpler, and there is no need to specially set up an unlocking controller.

[0035] In the unlocked state, the posture of the limit arm 31 is preferably selected to be a drooping posture, and when there is no power, it can be naturally maintained in a drooping posture with the help of gravity, so as to avoid the material cart being locked and unable to perform other operations when the rotation control fails; in an optional embodiment, it can also be in an upward posture, and a horizontal limit block is set on the main frame, so that when there is no power, the limit arm 31 can be moved to a horizontal posture with the help of gravity, and is limited to a horizontal posture by the horizontal limit block, so as to ensure the effectiveness of the limitation of the material cart. When the material cart needs to be moved out, its posture can be manually adjusted to avoid the problem of being unable to perform other operations.

[0036] The trolley positioning device provided by the present utility model can fix the main frame at the loading and unloading position. After the trolley is sent into the trolley limiting space, the trolley can be automatically locked in the trolley limiting space to ensure the stability of the trolley during loading and unloading and ensure the production efficiency.

[0037] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] The above-described embodiments only represent several specific implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A trolley positioning device, characterized in that: include: The main frame includes two longitudinal beams and a cross beam connected to the first ends of the two longitudinal beams to form a U-shaped trolley limiting space, wherein: A locking structure and a rotation driver are provided at the second end of at least one of the longitudinal beams, wherein the locking structure comprises an L-shaped rotating shaft and a limiting arm, wherein the rotating shaft is parallel to the extending direction of the longitudinal beam, and the rotation driver is drivingly connected to the rotating shaft; A photoelectric switch is arranged on the side wall of the cross beam facing the limiting space of the material cart, and the photoelectric switch is communicatively connected with the rotary driver.

2. The trolley positioning device according to claim 1, characterized in that: The locking structure and the rotation driver are both arranged on the two longitudinal beams, and the two photoelectric switches are horizontally spaced apart on the cross beam, and the two photoelectric switches are respectively connected in communication with the two rotation drivers.

3. The trolley positioning device according to claim 1, characterized in that: The rotary driver includes any one of a rotary motor and a rotary cylinder.

4. The trolley positioning device according to claim 1, characterized in that: The main frame further comprises a supporting leg, and a fixed structure formed by the longitudinal beam and the cross beam is fixedly connected to the top of the supporting leg.

5. The trolley positioning device according to claim 4, characterized in that: The support legs are disposed at positions including a rear position of the second end of the longitudinal beam and a connection area between the longitudinal beam and the cross beam.

6. The trolley positioning device according to claim 4, characterized in that: A positioning ear plate is also fixedly provided on the side of the supporting leg. The positioning ear plate is flush with the lower end surface of the supporting leg, and a positioning hole corresponding to the ground positioning point is provided on the positioning ear plate.

7. The trolley positioning device according to claim 6, characterized in that: The positioning ear plate includes a wildebeest connector.

8. The trolley positioning device according to claim 1, characterized in that: The rotary driver is also in communication with an unlocking controller, and the unlocking controller is fixedly disposed on the main frame.

9. The trolley positioning device according to claim 1, characterized in that: The inner side plate of the longitudinal beam also extends out of the main body of the longitudinal beam to form a partition plate at the second end of the longitudinal beam. The rotary drive is arranged at the outer side of the partition plate, and the inner side surface of the partition plate is an inclined surface inclined toward the outer side of the longitudinal beam.

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