Parallel clamping jaw mechanism

Abstract

The utility model relates to a parallel clamping jaw mechanism which comprises a mounting base, a driving assembly, a transmission assembly and a clamping jaw assembly. The driving assembly comprises a rotating air cylinder and a rotating arm, the rotating air cylinder is fixed to the mounting base, one end of the rotating arm is connected with the rotating air cylinder, and the free end of the rotating arm is driven by the rotating air cylinder to rotate; the transmission assembly comprises a sliding block, and the sliding block is connected with the free end of the rotating arm. The clamping jaw assembly comprises a connecting plate and at least two sets of clamping jaws fixed to the connecting plate, and the connecting plate is connected with the sliding block. The transmission assembly is used for limiting the reciprocating rotation of the clamping jaw assembly in a semi-circumference; displacement of a product in the X-axis direction and the Z-axis direction can be achieved at the same time through a set of air cylinders, and the product can cross a streamline interval and a flange of a streamline and be placed at a designated position; the structure is compact, the cost is low, and the occupied space is relatively small; products can be carried in batches, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a parallel jaw mechanism. Background Art

[0002] At present, the production line realizes the production of products through the combination of multiple sections of flow lines. When handling products, it is necessary to cross the edge of the flow line and the interval between two adjacent sections of flow lines. The existing handling method occupies a large space and requires more power sources. In order to avoid obstacles during product transportation, it is also necessary to plan and design the flow lines, resulting in high costs. In addition, during the existing material handling process, only a single product can be transported each time, and the production efficiency is low. Content of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the technical difficulties of large space occupation and low handling efficiency in the prior art during product handling, and provide a parallel jaw mechanism for parallel jaw transportation, which has a compact structure and higher working efficiency.

[0004] To solve the above technical problem, the utility model provides a parallel jaw mechanism, which includes,

[0005] A mounting seat;

[0006] A driving assembly, the driving assembly includes a rotary cylinder and a rotating arm; the rotary cylinder is fixed to the mounting seat, one end of the rotating arm is connected to the rotary cylinder, and the free end of the rotating arm is driven by the rotary cylinder to rotate;

[0007] A transmission assembly, the transmission assembly includes a slider, and the slider is connected to the free end of the rotating arm;

[0008] A jaw assembly, the jaw assembly includes a connecting plate and at least two groups of jaws fixed to the connecting plate, the connecting plate is connected to the slider; the transmission assembly is used to limit the reciprocating rotation of the jaw assembly within a semi-circle.

[0009] In an embodiment of the utility model, the transmission assembly includes a first guide rail and a second guide rail perpendicular to each other, and a connecting block; one end of the connecting block is slidably connected to the first guide rail, and the other end of the connecting block is fixed to an end of the second guide rail in the extending direction.

[0010] In an embodiment of the utility model, the first guide rail extends along the X-axis direction, and the second guide rail extends along the Z-axis direction; the second guide rail and the driving assembly are located on the same side of the first guide rail in the Z-axis direction.

[0011] In an embodiment of the utility model, the connecting block has a bent portion, and both sides of the bent portion are perpendicular to each other.

[0012] In one embodiment of the present utility model, the slider is sleeved on the outer periphery of the second guide rail and is slidably connected thereto. One side surface of the slider in the Y-axis direction is connected to the free end of the rotating arm, and the other side surface of the slider in the Y-axis direction is connected to the jaw assembly.

[0013] In one embodiment of the present utility model, the driving assembly further includes a rotating shaft and a rotating shaft mounting portion. The rotating shaft extends along the Y-axis direction. One end of the rotating shaft is fixed to the free end of the rotating arm through the rotating shaft mounting portion, and the other end of the rotating shaft is connected to the slider.

[0014] In one embodiment of the present utility model, the connecting plate extends along the X-axis direction, and the jaws are arranged at intervals along the X-axis direction on the connecting plate; the jaws are pneumatic jaws.

[0015] In one embodiment of the present utility model, the jaw includes two sets of clamping portions, and the two sets of clamping portions are arranged opposite to each other in the Y-axis direction.

[0016] In one embodiment of the present utility model, the jaw assembly further includes a control portion, and there are several groups of the control portion and are connected to the jaws in one-to-one correspondence.

[0017] In one embodiment of the present utility model, the connecting plate is provided with a hollow portion.

[0018] The above technical solution of the present utility model has the following beneficial effects compared with the prior art:

[0019] The parallel jaw mechanism of the present utility model can simultaneously realize the displacement of the product in the X-axis direction and the Z-axis direction through a set of cylinders, so that the product can be placed at a specified position across the streamline interval and the edge of the streamline; the structure of the present utility model is compact, the cost is relatively low, and the occupied space is relatively small; it can batch transport products and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings, where:

[0021] Figure 1 is a schematic structural diagram of the parallel jaw mechanism in the preferred embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the parallel jaw mechanism from another angle in the preferred embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the transmission mechanism in the preferred embodiment of the present utility model;

[0024] Figure 4 It is the top view of the parallel jaw mechanism in the preferred embodiment of the present utility model;

[0025] Figure 5 It is the side view of the parallel jaw mechanism in the preferred embodiment of the present utility model.

[0026] Explanation of the reference numerals in the drawings of the specification: 1. Mounting seat; 11. Support part; 2. Driving assembly; 21. Rotary cylinder; 22. Rotating arm; 3. Transmission assembly; 31. First guide rail; 32. Second guide rail; 4. Jaw assembly; 41. Connecting plate; 4101. Hollow part; 42. Jaw; 4201. Clamping part; 5. Connecting block; 51. Bent part; 6. Slide block; 7. Rotating shaft; 71. Rotating shaft mounting part. Detailed implementation manners

[0027] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0028] Embodiment

[0029] Referring to Figures 1 to 5 As shown, the present utility model provides a parallel jaw mechanism, and the parallel jaw mechanism includes a mounting seat 1, a driving assembly 2, a transmission assembly 3 and a jaw assembly 4; the mounting seat 1 is used to provide support, the driving assembly 2 drives the transmission assembly 3 and the jaw assembly 4 to displace, and the transmission assembly 3 is used to limit the rotation of the jaw assembly 4 within a semi-circular range; the parallel jaw mechanism can batch realize the handling of products between multiple sections of flow lines, which can not only reduce the occupied space of the equipment, but also meet the handling requirements and improve the production and processing efficiency.

[0030] Specifically, referring to Figure 1 As shown, the mounting seat 1 includes two sets of support parts 11 arranged oppositely, and the driving assembly 2 is fixed above the mounting seat 1. The driving assembly 2 includes a rotary cylinder 21 and a rotating arm 22. Among them, the rotary cylinder 21 is fixed to the mounting seat 1, one end of the rotating arm 22 is connected to the rotary cylinder 21, the free end of the rotating arm 22 is connected to the transmission assembly 3 and the jaw assembly 4, and the rotating arm 22 is configured to rotate around an axis with the end connected to the rotary cylinder 21 as the axis when the rotary cylinder 21 works.

[0031] Specifically, referring to Figure 3 and Figure 4As shown, the transmission assembly 3 includes two sets of guide rails arranged orthogonally with their extending directions perpendicular to each other, a connecting block 5, and a slider 6. In a preferred embodiment of the present invention, the transmission assembly 3 includes a first guide rail 31 and a second guide rail 32. The first guide rail 31 extends along the X-axis direction, and the second guide rail 32 extends along the Z-axis direction. One end of the connecting block 5 is slidably connected to the first guide rail 31, and the other end of the connecting block 5 is fixed to one end of the second guide rail 32 in its extending direction. The slider 6 is sleeved on the outer periphery of the second guide rail 32 and is slidably connected thereto.

[0032] Further, referring to Figure 2 As shown, one side surface of the slider 6 in the Y-axis direction is connected to the free end of the rotating arm 22, and the other side surface of the slider 6 in the Y-axis direction is connected to the jaw assembly 4. The driving assembly 2 further includes a rotating shaft 7 and a rotating shaft mounting portion 71. The rotating shaft 7 extends along the Y-axis direction. One end of the rotating shaft 7 is fixed to the free end of the rotating arm 22 through the rotating shaft mounting portion 71, and the other end of the rotating shaft 7 is connected to the slider 6. After being driven by the rotating arm 22, the slider 6 drives the jaw assembly 4 to move in a circumferential direction. At the same time, the slider 6 is limited by the first guide rail 31 and the second guide rail 32 and only moves within a semi-circular range above the first guide rail 31.

[0033] It should be noted that through the research of the inventors of this case, it is found that in some existing product handling tooling, some handling mechanisms extend along the X-axis direction and directly drive the product to achieve displacement in the X-axis direction. Since the product has a certain height in the Z-axis direction and there is a streamline edge guard below, a certain height needs to be lifted during handling to avoid obstacles and prevent the product from being scratched or damaged. At the same time, as the types of products being handled are different, the height that needs to be lifted is also different. The existing single linear slide rail cannot meet the above handling requirements. In addition, the existing streamline combination also uses a combination of multiple slide rails to change the position of the product in multiple directions such as the X-axis and Z-axis. However, this combination method requires the cooperation of multiple power sources and needs to be controlled and fixed simultaneously in multiple directions to adjust the position of the product, which is too redundant and complex for simple product handling requirements, with high control difficulty, large occupied space, and high cost.

[0034] Next, in the existing product handling mechanism, a single swing cylinder is used to realize product handling and obstacle avoidance during rotation; on the one hand, when only relying on the swing cylinder to control the start and stop, the product is prone to shaking due to inertia, and the stability and reliability of the handling process are insufficient; on the other hand, if it stops during the rotation process, the rotating connecting arm needs to connect the clamp and the product, and there is no other support, which is easy to be damaged by force and affects the service life. In a preferred embodiment of the utility model, the rotating cylinder 21 and the rotating arm 22 provide a power source and a rotation guide, the first guide rail 31 and the second guide rail 32 control the specific position of the clamp assembly 4, and the direction is controlled by the connecting block 5 and the slider 6 during start and stop. The clamp assembly 4 moves with the slider 6 and the movement path is within a semicircular arc, ensuring that the movement process of the clamp assembly 4 is more stable; the utility model only uses a group of power sources such as the rotating cylinder 21 to realize the position adjustment of the clamp assembly 4 in the X-axis direction and the Z-axis direction, and has higher stability, meeting the requirements of handling and obstacle avoidance.

[0035] Further, refer to Figure 4 and Figure 5 As shown, the second guide rail 32 and the driving assembly 2 are located on the same side of the first guide rail 31 in the Z-axis direction; preferably, the first guide rail 31 is located below the driving assembly 2 and the second guide rail 32 in the Z-axis direction, and the second guide rail 32 has a gap with the driving assembly 2 in the Y-axis direction to provide avoidance for the movement of the second guide rail 32. The clamping jaw assembly 4 is located on the side of the second guide rail 32 away from the gap in the Y-axis direction. Preferably, referring to Figure 5 As shown, the connecting block 5 has a bending portion 51 , and the two sides of the bending portion 51 are perpendicularly arranged to each other, so that the structural strength is better and can provide avoidance for the movement of the clamping jaw assembly 4 .

[0036] Specifically, refer to Figure 1 As shown, the clamping jaw assembly 4 includes a connecting plate 41 and a clamping jaw 42 fixed to the connecting plate 41; the connecting plate 41 is connected to the slider 6 and moves with the slider 6, and the connecting plate 41 extends along the X-axis direction; in some embodiments, the connecting plate 41 is also provided with a hollow portion 4101 for weight reduction.

[0037] Further, there are at least two sets of the jaws 42. The at least two sets of the jaws 42 are arranged at intervals along the X-axis direction on the connecting plate 41. When the jaw assembly 4 is used for handling, it can transfer products in batches, improving production efficiency. In some embodiments, the jaws 42 are pneumatic jaws; the jaws 42 include two clamping portions 4201 arranged opposite to each other in the Y-axis direction, and the clamping direction is perpendicular to the arrangement direction of the jaws 42, which facilitates the arrangement of multiple sets of jaws 42 within the extension length of the connecting plate 41; in other embodiments, the jaws 42 can also be set as multi-claw or wide fingers, or determined according to the actual requirements of the product appearance, and are not limited thereto. The jaw assembly 4 further includes a control part. There are several groups of the control part and they are connected to the jaws 42 in one-to-one correspondence. The control part can control each group of the jaws 42 to open and close uniformly, or the control part independently controls each group of the jaws 42 through multiple gas paths.

[0038] It should be noted that in the preferred embodiment of the present utility model, the model of the rotary cylinder 21, the length of the rotating arm 22, the transmission assembly 3, and the connecting plate 41 can all be replaced and matched according to the product appearance and handling requirements, so as to adapt to different product models or streamline spacings during handling.

[0039] The working principle of a parallel jaw mechanism of the present utility model is as follows:

[0040] When the connecting block 5 is located at one end of the first guide rail 31, the rotating arm 22 is horizontally arranged along the X-axis direction, and the slider 6 is located at one end of the second guide rail 32; the jaws 42 clamp the product and wait for handling.

[0041] The rotary cylinder 21 is started, and the rotating arm 22 rotates. The free end of the rotating arm 22 rises in the Z-axis direction and at the same time moves to the other side in the X-axis direction. The slider 6 rises along the Z-axis direction on the second guide rail 32 to cooperate with the rotating arm 22, and the second guide rail 32 moves along the X-axis direction on the first guide rail 31 through the connecting block 5 to cooperate with the rotating arm 22.

[0042] The rotating arm 22 stops after rotating half a circle. During the process, the connecting block 5 moves from one end of the first guide rail 31 to the other end, and the slider 6 moves from the bottom of the second guide rail 32 to the top and then returns to the bottom; when the rotating arm 22 rotates in the reverse direction, the connecting block 5 moves in the reverse direction on the first guide rail 31, and the slider 6 makes a reciprocating motion on the second guide rail 32 again, realizing the reciprocating motion of the jaw assembly 4. During the rotation process, when stopping is controlled by the rotary cylinder 21, the transmission assembly 3 is used to control the stability of the jaw assembly 4.

[0043] During the process of the gripper assembly 4 rotating half a circle, the horizontal heights of the gripper assembly 4 at the starting point and the ending point are the same. It can move within the range of the semi-circle to straddle the spacing between two adjacent flow lines and cross the edge guards of the flow lines, realizing the transfer of products between different flow lines, and improving the stability and reliability of handling within a limited space.

[0044] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A parallel clamping mechanism, characterized in that: include, Mounting seat; A driving assembly, the driving assembly comprising a rotating cylinder and a rotating arm; the rotating cylinder is fixed to the mounting seat, one end of the rotating arm is connected to the rotating cylinder, and the free end of the rotating arm is driven to rotate by the rotating cylinder; A transmission assembly, the transmission assembly comprising a slider, the slider being connected to the free end of the rotating arm; The clamping jaw assembly comprises a connecting plate and at least two groups of clamping jaws fixed to the connecting plate, wherein the connecting plate is connected to the sliding block; the transmission assembly is used for limiting the reciprocating rotation of the clamping jaw assembly within a semicircle.

2. The parallel clamping mechanism according to claim 1, characterized in that: The transmission assembly includes a first guide rail and a second guide rail which are perpendicular to each other, and a connecting block; one end of the connecting block is slidably connected to the first guide rail, and the other end of the connecting block is fixed to an end portion of the second guide rail in an extending direction.

3. The parallel clamping mechanism according to claim 2, characterized in that: The first guide rail extends along the X-axis direction, and the second guide rail extends along the Z-axis direction; the second guide rail and the driving assembly are located on the same side of the first guide rail in the Z-axis direction.

4. The parallel clamping mechanism according to claim 2 or 3, characterized in that: The connecting block has a bending portion, and two sides of the bending portion are arranged perpendicular to each other.

5. The parallel clamping mechanism according to claim 2, characterized in that: The slider is sleeved on the outer periphery of the second guide rail and slidably connected thereto, one side surface of the slider in the Y-axis direction is connected to the free end of the rotating arm, and the other side surface of the slider in the Y-axis direction is connected to the clamping claw assembly.

6. The parallel clamping mechanism according to claim 5, characterized in that: The driving assembly also includes a rotating shaft and a rotating shaft mounting portion. The rotating shaft extends along the Y-axis direction. One end of the rotating shaft is fixed to the free end of the rotating arm through the rotating shaft mounting portion, and the other end of the rotating shaft is connected to the slider.

7. The parallel clamping mechanism according to claim 1, characterized in that: The connecting plate extends along the X-axis direction, and the clamps are arranged on the connecting plate at intervals along the X-axis direction; the clamps are configured as pneumatic clamps.

8. The parallel clamping mechanism according to claim 7, characterized in that: The clamping jaw includes two groups of clamping parts, and the two groups of clamping parts are arranged opposite to each other in the Y-axis direction.

9. The parallel clamping mechanism according to claim 7, characterized in that: The clamping jaw assembly also includes a control part, which has a plurality of groups and is connected with the clamping jaws in a one-to-one correspondence.

10. The parallel clamping mechanism according to claim 1, characterized in that: The connecting plate is provided with a hollow portion.

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