Positioning mechanism and processing device

Abstract

This application provides a positioning mechanism and a processing device for improving the positioning accuracy of a workpiece. The workpiece has a groove with a bottom wall, a first side wall, a third side wall, a fourth side wall, and a second side wall. The positioning mechanism includes: a base; a rotating assembly including a rotation drive, a rotating component, and a stop; the rotation drive is located on the base and connected to the rotating component to drive the rotating component to rotate; the stop has a first positioning surface and a second positioning surface spaced apart; the positioning assembly includes a translation drive, a sliding seat, an adsorption component, a limiting drive, and two pushing components; the translation drive is located on the rotating component and connected to the sliding seat to drive the sliding seat to move; the adsorption component is located on the sliding seat to adsorb the bottom wall; the limiting drive is located on the sliding seat and connected to the two pushing components to drive the two pushing components to abut against the first side wall and the third side wall respectively; when the workpiece is placed on the adsorption component, the first positioning surface and the second positioning surface are both located in the groove and correspond one-to-one with the fourth side wall and the second side wall.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, specifically to a positioning mechanism and a processing device. Background Technology

[0002] Currently, when machining the sides of workpieces with grooved structures, such as for pad printing or marking, a positioning mechanism is typically used to support the workpiece internally to achieve positioning, followed by machining. However, using a positioning mechanism with internal support can easily lead to differences in the angle of the positioned workpiece, resulting in low positioning accuracy and reduced machining quality. Utility Model Content

[0003] In view of the above, it is necessary to provide a positioning mechanism and a processing device to improve positioning accuracy.

[0004] This application provides a positioning mechanism for positioning a workpiece. The workpiece has a groove, and the groove includes a bottom wall and a first side wall, a second side wall, a third side wall, and a fourth side wall connected sequentially from end to end. The positioning mechanism includes: Base; A rotating assembly, rotatably connected to the base, includes a rotation drive, a rotating component, and a stop. The rotation drive is disposed on the base and connected to the rotating component, driving the rotating component to rotate. The stop is disposed on the rotating component and has a first positioning surface and a second positioning surface spaced apart. A positioning component is disposed on the rotating component and includes a translational drive, a sliding seat, an adsorption component, a limiting drive, and two pushing components located in the groove. The translational drive is disposed on the rotating component and connected to the sliding seat. The translational drive drives the sliding seat to move so that the first positioning surface abuts against the fourth side wall or the second positioning surface abuts against the second side wall. The adsorption component is disposed on the sliding seat and carries and adsorbs the bottom wall of the workpiece. The limiting drive connects to the two pushing components and drives the two pushing components to abut against the first side wall and the third side wall respectively. When the adsorption element adsorbs the workpiece, the first positioning surface is located in the groove and corresponds to the fourth sidewall, and the second positioning surface is located in the groove and corresponds to the second sidewall.

[0005] When the above-mentioned positioning mechanism operates, the workpiece is first placed onto the adsorption component, ensuring that the first positioning surface, the second positioning surface, and the two pushing components are all located in the groove of the workpiece. Next, the limiting drive component drives the two pushing components to abut against the first and third sidewalls of the workpiece, respectively. Then, the adsorption component adsorbs the bottom wall of the workpiece. Next, the rotation drive component drives the rotating component to rotate the positioning assembly and the workpiece by 90°, and the translation drive component drives the sliding seat to move the adsorption component and the workpiece until the fourth sidewall of the workpiece abuts against the first positioning surface, facilitating the processing of the surface of the workpiece opposite to the fourth sidewall by an external processing mechanism. Finally, the rotation drive component drives the rotating component to rotate the positioning assembly and the workpiece by 180°, and the translation drive component drives the sliding seat to move the adsorption component and the workpiece until the second sidewall of the workpiece abuts against the second positioning surface, facilitating the processing of the surface of the workpiece opposite to the second sidewall by an external processing mechanism.

[0006] Therefore, in the above positioning mechanism, the positions of the first positioning surface and the second positioning surface are fixed relative to the rotating component. The rotating component drives the workpiece to rotate to different angles. The first positioning surface and the second positioning surface can respectively position the fourth side wall and the second side wall, reducing the positioning difference caused by the processing error between different workpieces and the dimensional deviation of the push component itself, thereby improving the positioning accuracy of the workpiece and improving the processing quality of the workpiece.

[0007] In some embodiments, the rotating member has a through-hole, and the sliding seat includes: A sliding member is disposed on the side of the rotating member opposite to the stop member and is slidably connected to the rotating member; the limiting drive member is connected to the sliding member. A support member is disposed on the sliding member and passes through the movable hole, so as to move within the movable hole under the drive of the sliding member; the translation drive member is disposed on the support member. The mounting component is disposed on the bearing component and located between the two pushing components, and the adsorption component is disposed on the mounting component.

[0008] In some embodiments, the mounting component includes: An installation body is disposed on the support member and located between the two pushing members, and one end of the adsorption member is connected to the installation body; The sleeve is connected to the mounting body and has a receiving hole for accommodating the adsorption member, the receiving hole penetrating the sleeve.

[0009] In some embodiments, the mounting component further includes: Multiple supports that support the bottom wall of the workpiece are provided, each of which is located on the side of the sleeve body away from the mounting body and is arranged around the receiving hole.

[0010] In some embodiments, at least one of the surfaces of the support body that contact the workpiece, the surfaces of the pusher that contact the workpiece, the first positioning surface, and the second positioning surface is provided with a flexible layer.

[0011] In some embodiments, one end of the slider is provided with a movable groove, and the translation drive includes a connecting body disposed in the movable groove and connected to the rotating member. A first driving body and a second driving body with opposite driving directions are arranged side by side on the connecting body. The first driving body and the second driving body respectively push the two side walls of the movable groove to move in opposite directions. A reset driving body is provided on the side of the slider away from the movable groove and is respectively connected to the rotating member and the slider. The reset driving body drives the slider to reset.

[0012] In some embodiments, the stop includes: Two first stop bodies are provided on the rotating member and located on opposite sides of the adsorption member along the rotation axis of the rotating member. Each first stop body has a first positioning surface on the side away from the adsorption member. Two second stops are provided on the rotating member and located on opposite sides of the adsorption member along the rotation axis of the rotating member. The two first stops and the two second stops are respectively one-to-one and located on opposite sides of the rotation axis of the rotating member. Each second stop has a second positioning surface on the side away from the adsorption member.

[0013] In some embodiments, the adsorption element includes: An adsorbent is disposed on the sliding seat and has an air intake hole; An elastic sleeve supports the bottom wall of the workpiece, is disposed on the adsorption body, and communicates with the air intake hole.

[0014] In some embodiments, the base includes: abutment; A first fixing member is disposed on the base and connected to the rotation drive member; The second fixing member is disposed on the base and spaced apart from the first fixing member along the rotation axis of the rotating member, and the second fixing member is rotatably connected to the rotating member.

[0015] This application embodiment also provides a processing apparatus for processing a workpiece, the workpiece having a groove, the groove including a bottom wall and a first side wall, a second side wall, a third side wall, and a fourth side wall connected end to end in sequence, the processing apparatus comprising: The aforementioned positioning mechanism; and A processing mechanism is located on one side of the positioning mechanism and is used to process the side of the workpiece. The side includes a first side disposed opposite to the fourth side wall and a second side disposed opposite to the second side wall.

[0016] In the positioning mechanism of the above-mentioned processing device, the positions of the first positioning surface and the second positioning surface are fixed relative to the rotating component. The rotating component drives the workpiece to rotate to different angles. The first positioning surface and the second positioning surface can respectively position the fourth side wall and the second side wall, reducing the positioning difference caused by the processing error between different workpieces and the dimensional deviation of the push component itself, thereby improving the positioning accuracy of the workpiece and thus improving the processing quality of the workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a workpiece applicable to embodiments of this application.

[0018] Figure 2 This is a schematic diagram of the positioning mechanism in an embodiment of this application.

[0019] Figure 3 for Figure 2 The diagram shows the structure of the rotating component, the stop component, and the positioning assembly of the positioning mechanism.

[0020] Figure 4 for Figure 3 An exploded view of the rotating component, the stop component, and the positioning assembly shown.

[0021] Figure 5 for Figure 3 An exploded view of the translation drive and sliding components in the positioning mechanism shown.

[0022] Key component symbols: Positioning mechanism 100, working space 100a, base 110, platform 111, first fixing member 112, second fixing member 113, rotating assembly 120, rotation drive member 121, rotating member 122, movable hole 122a, stop member 123, first positioning surface 123a, second positioning surface 123b, first stop body 1231, second stop body 1232, positioning assembly 130, translation drive member 131, connecting body 1311, first drive body 1312, second drive body 1313, reset drive body 1314, sliding seat 132. Sliding component 1321, movable groove 1321a, bearing component 1322, mounting component 1323, mounting body 1323a, sleeve body 1323b, receiving hole 1323c, support body 1323d, adsorption component 133, adsorption body 1331, air suction hole 1331a, elastic sleeve 1332, limiting drive component 134, pushing component 135, limiting component 136, workpiece 200, groove 200a, bottom wall 200b, first side wall 200c, third side wall 200d, fourth side wall 200e, second side wall 200f, first side surface 200g, second side surface 200h. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two elements or the interaction between two elements. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise expressly and specifically limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of a workpiece applicable to the positioning mechanism of this application embodiment. Specifically, the workpiece 200 is generally rectangular and has an open groove 200a. The groove 200a includes a bottom wall 200b and a first side wall 200c, a second side wall 200f, a third side wall 200d, and a fourth side wall 200e respectively connected to the bottom wall 200b. The first side wall 200c and the third side wall 200d are arranged opposite to each other, and the second side wall 200f and the fourth side wall 200e are arranged opposite to each other. The first side wall 200c, the second side wall 200f, the third side wall 200d, and the fourth side wall 200e are connected end to end. The side surface of the workpiece 200 includes a first side surface 200g opposite to the fourth side wall 200e and a second side surface 200h opposite to the second side wall 200f. Exemplarily, the first side surface 200g, the fourth side wall 200e, the second side wall 200f, and the second side surface 200h are parallel to each other. Among them, workpiece 200 can be a mobile phone frame, etc.

[0027] For ease of description, in Figures 2 to 4 A three-dimensional coordinate system has been added. Specifically, the X-axis is the first direction, the Z-axis is the second direction, and the Y-axis is the rotation axis of the rotating component 122. The X-axis, Y-axis, and Z-axis are all perpendicular to each other.

[0028] Please see Figure 2 , Figure 3 and Figure 4The positioning mechanism 100 is used to position the workpiece 200 to improve the positioning accuracy of the workpiece 200. The positioning mechanism 100 includes a base 110, a rotating assembly 120, and a positioning assembly 130. The rotating assembly 120 includes a rotation drive 121, a rotating member 122, and a stop 123. The rotation drive 121 is disposed on the base 110 and connected to the rotating member 122, and is used to drive the rotating member 122 to rotate. The stop 123 has a first positioning surface 123a and a second positioning surface 123b spaced apart along the X-axis direction. The positioning assembly 130 includes a translation drive 131, a sliding seat 132, an adsorption member 133, a limiting drive 134, and two pushers 135. The translation drive 131 is located on the rotating member 122 and connected to the sliding seat 132, and is used to drive the sliding seat 132 to move along the X-axis. The adsorption member 133 is located on the sliding seat 132 and is used to support and adsorb the bottom wall 200b of the workpiece 200. The limiting drive 134 is located on the sliding seat 132 and connected to the two pushers 135, and is used to drive the two pushers 135 to abut against the first side wall 200c and the third side wall 200d respectively. When the workpiece 200 is placed on the adsorption member 133, the first positioning surface 123a is located in the groove 200a and corresponds to the fourth side wall 200e along the X-axis, the second positioning surface 123b is located in the groove 200a and corresponds to the second side wall 200f along the X-axis, and both pushers 135 are located in the groove 200a. For example, the rotation drive 121 is a rotary motor or a rotary cylinder, and the limit drive 134 is a telescopic cylinder.

[0029] It should be noted that the pushing member 135 forms an elastic abutment with the side wall of the workpiece 200. Specifically, after the two pushing members 135 abut against the first side wall 200c and the third side wall 200d of the workpiece 200, the workpiece 200 can reciprocate a first distance relative to the pushing members 135 along the X-axis direction under the drive of the sliding seat 132. For example, the first distance can be 2mm.

[0030] When the positioning mechanism 100 operates, the workpiece 200 is first placed onto the suction member 133, ensuring that the first positioning surface 123a, the second positioning surface 123b, and the two pushing members 135 are all located in the groove 200a of the workpiece 200. Next, the limiting drive member 134 drives the two pushing members 135 to abut against the first sidewall 200c and the third sidewall 200d of the workpiece 200, respectively. Then, the suction member 133 suctions the bottom wall 200b of the workpiece 200. The rotation drive member 121 drives the rotating member 122 to rotate the positioning assembly 130 and the workpiece 200 by 90°. The translation drive member 131 drives the sliding seat 132 to move... The adsorption member 133 and the workpiece 200 move until the fourth side wall 200e of the workpiece 200 abuts against the first positioning surface 123a, so that the first side surface 200g of the workpiece 200 can be processed by an external processing mechanism; finally, the rotation drive member 121 drives the rotating member 122 to rotate the positioning assembly 130 and the workpiece 200 by 180°, and the translation drive member 131 drives the sliding seat 132 to move the adsorption member 133 and the workpiece 200 until the second side wall 200f of the workpiece 200 abuts against the second positioning surface 123b, so that the second side surface 200h of the workpiece 200 can be processed by an external processing mechanism.

[0031] Therefore, in the above-mentioned positioning mechanism 100, the positions of the first positioning surface 123a and the second positioning surface 123b are fixed relative to the rotating component 122. The rotating component 120 drives the workpiece 200 to rotate to different angles. The first positioning surface 123a and the second positioning surface 123b can respectively position the fourth side wall 200e and the second side wall 200f, reducing the positioning differences caused by the processing errors between different workpieces 200 and the dimensional deviation of the pusher 135 itself, thereby improving the positioning accuracy of the workpiece 200 and improving the processing quality of the workpiece 200.

[0032] Please see Figure 3 and Figure 4 In some embodiments, the rotating member 122 has a movable hole 122a that extends through the rotating member 122 along the Z-axis. The sliding seat 132 includes a sliding member 1321, a support member 1322, and a mounting member 1323. The sliding member 1321 is located on the side of the rotating member 122 away from the stop member 123 and is slidably connected to the rotating member 122 along the X-axis. The limiting drive member 134 is connected to the sliding member 1321. The support member 1322 is located on the sliding member 1321 and passes through the movable hole 122a, so as to move along the X-axis within the movable hole 122a under the drive of the sliding member 1321. The translation drive member 131 is located on the support member 1322. The mounting member 1323 is located on the support member 1322 and is situated between the two push members 135. The adsorption member 133 is located on the mounting member 1323.

[0033] Therefore, through the above arrangement, the rotating component 120 and the positioning component 130 can be reasonably arranged, which is conducive to the miniaturization of the positioning mechanism 100.

[0034] Please see Figure 3 , Figure 4 and Figure 5 In this embodiment, the sliding member 1321 has an active groove 1321a at one end along the Y-axis direction, and the translation drive member 131 includes a connecting body 1311, a first drive body 1312, a second drive body 1313 and a reset drive body 1314. A connecting body 1311 is disposed in the movable groove 1321a and connected to the rotating member 122. A first driving body 1312 is disposed in the connecting body 1311 and is used to push the side wall of the movable groove 1321a in the positive X-axis direction to drive the sliding member 1321 to move in the positive X-axis direction. A second driving body 1313 is disposed in the connecting body 1311 and is used to push the side wall of the movable groove 1321a in the negative X-axis direction to drive the sliding member 1321 to move in the negative X-axis direction. A reset driving body 1314 is disposed on the side of the sliding member 1321 away from the movable groove 1321a and is connected to the rotating member 122 and the sliding member 1321 respectively. The reset driving body 1314 is used to drive the sliding member 1321 to reset. The initial position of the slider 1321 is the position of the slider 1321 after the workpiece 200 is placed on the adsorption member 133 and before the translation drive member 131 drives the slider 1321 to move. The first drive body 1312 and the second drive body 1313 are both pen-shaped cylinders, and the reset drive body 1314 is a gripper cylinder.

[0035] In some embodiments, the mounting member 1323 includes a mounting body 1323a and a sleeve body 1323b. The mounting body 1323a is disposed on the support member 1322 and located between the two push members 135. One end of the adsorption member 133 is connected to the mounting body 1323a. The sleeve body 1323b is connected to the mounting body 1323a and has an accommodating hole 1323c for accommodating the adsorption member 133. The accommodating hole 1323c penetrates the sleeve body 1323b along the Z-axis direction.

[0036] Therefore, through the above arrangement, the adsorption member 133 and the mounting member 1323 form an embedded structure, so that the sleeve body 1323b limits the adsorption member 133 in the radial direction of the sleeve body 1323b, which is beneficial to the accuracy of the adsorption member 133 on the bottom wall 200b of the workpiece 200.

[0037] It should be noted that the inner diameter of the accommodating hole 1323c is larger than the diameter of the adsorption member 133, so that there is a gap between the adsorption member 133 and the inner wall of the accommodating hole 1323c, so that the adsorption member 133 can move within a small range in the radial direction of the accommodating hole 1323c.

[0038] In some embodiments, the mounting member 1323 further includes a plurality of supports 1323d. The plurality of supports 1323d are all disposed on the side of the sleeve body 1323b opposite to the mounting body 1323a and surrounding the receiving hole 1323c, for supporting the bottom wall 200b of the workpiece 200.

[0039] Therefore, multiple supports 1323d can provide multi-point support for the bottom wall 200b of the workpiece 200, which helps to reduce the damage to the workpiece 200 caused by the mounting parts 1323.

[0040] It should be noted that after the multiple supports 1323d abut against the bottom wall 200b of the workpiece 200, the workpiece 200 can slide back and forth along the X-axis direction for a second distance on the multiple supports 1323d. For example, the second distance can be 2mm.

[0041] In some embodiments, at least one of the surfaces of the support 1323d for supporting the workpiece 200, the first positioning surface 123a, the second positioning surface 123b, and the pusher 135 for abutting the surface of the workpiece 200 is provided with a flexible layer.

[0042] Therefore, the above-mentioned arrangement can reduce the damage to the bottom wall 200b of the workpiece 200 caused by the support 1323d and the stop 123.

[0043] Please see Figure 3 and Figure 4 In some embodiments, the stop member 123 includes two first stop bodies 1231 and two second stop bodies 1232. The two first stop bodies 1231 are both disposed on the rotating member 122 and located on opposite sides of the adsorption member 133 along the Y-axis direction. Each first stop body 1231 has a first positioning surface 123a on the side facing away from the adsorption member 133. The two second stop bodies 1232 are both disposed on the rotating member 122 and located on opposite sides of the adsorption member 133 along the Y-axis direction. Each second stop body 1232 has a second positioning surface 123b on the side facing away from the adsorption member 133. Each first stop body 1231 corresponds one-to-one with a second stop body 1232 and is located on opposite sides of the adsorption member along the X-axis direction.

[0044] Therefore, using two first stop bodies 1231 can position the fourth side wall 200e at two positions, which is beneficial to improving the positioning accuracy of the fourth side wall 200e. Correspondingly, using two second stop bodies 1232 can position the second side wall 200f at two positions, which is beneficial to improving the positioning accuracy of the second side wall 200f.

[0045] In some embodiments, the adsorption member 133 includes an adsorption body 1331 and an elastic sleeve 1332. The adsorption body 1331 is disposed on the sliding seat 132 and has an air suction hole 1331a. The elastic sleeve 1332 is disposed on the adsorption body 1331 and communicates with the air suction hole 1331a, and is used to support the bottom wall 200b of the workpiece 200.

[0046] Therefore, the elastic sleeve 1332 enables the adsorption member 133 to provide flexible support to the bottom wall 200b of the workpiece 200, thus preventing the adsorption member 133 from damaging the bottom wall 200b of the workpiece 200.

[0047] In some embodiments, there are multiple adsorption elements 133, which are spaced apart circumferentially along the sliding seat 132. In this embodiment, there are multiple receiving holes 1323c, and the multiple adsorption elements 133 are arranged in a one-to-one correspondence with the multiple receiving holes 1323c.

[0048] Therefore, multiple adsorption elements 133 can adsorb onto the bottom wall 200b of the workpiece 200 at multiple locations, which is beneficial to improving the stability of the adsorption elements 133 adsorbing the workpiece 200.

[0049] Please see Figure 3 and Figure 4 In this embodiment, the positioning component 130 further includes two limiting members 136. The two limiting members 136 and two pushing members 135 are alternately arranged along the circumference of the mounting member 1323, and the two limiting members 136 are respectively connected to the limiting driving member 134. When the workpiece 200 is placed on the multiple adsorption members 133, one of the limiting members 136 is correspondingly arranged with the fourth side wall 200e along the X-axis direction, and the other limiting member 136 is correspondingly arranged with the second side wall 200f along the X-axis direction.

[0050] Therefore, the two limiting members 136 and the two pushing members 135 are alternately arranged along the circumference of the mounting member 1323, which can limit the range of motion of the workpiece 200 relative to the mounting member 1323, which is beneficial to improving the positioning accuracy of the workpiece 200.

[0051] Please see Figure 1 In some embodiments, the base 110 includes a base 111, a first fixing member 112, and a second fixing member 113. The first fixing member 112 is disposed on the base 111 and connected to the rotation drive member 121, and the second fixing member 113 is disposed on the base 111 and spaced apart from the first fixing member 112 along the Y-axis direction. The second fixing member 113 is rotatably connected to the rotating member 122.

[0052] Therefore, through the above arrangement, a working space 100a is formed between the first fixing member 112 and the second fixing member 113, which facilitates the arrangement of the rotating member 122 and the positioning component 130 and is conducive to the miniaturization of the positioning mechanism 100.

[0053] This application embodiment also provides a processing apparatus (not shown) for processing a workpiece 200, including a processing mechanism (not shown) and the aforementioned positioning mechanism 100. The processing mechanism is used to process the first side 200g and the second side 200h of the workpiece 200. Exemplarily, the processing mechanism can be a pad printing mechanism, a milling mechanism, etc.

[0054] The working process of the above-mentioned processing device is roughly as follows: First, place the workpiece 200 to a plurality of adsorption members 133, such that the first positioning surface 123a, the second positioning surface 123b, the two push members 135 and the two limiting members 136 are all located in the groove 200a of the workpiece 200. At this time, the workpiece 200 is in a horizontal state. Secondly, the limiting drive member 134 drives the two push members 135 and the two limiting members 136 to move, so that the two push members 135 respectively abut against the first side wall 200c and the third side wall 200d of the workpiece 200, and the two limiting members 135 respectively cooperate with the fourth side wall 200e and the second side wall 200f with clearance. Next, the adsorption member 133 adsorbs the bottom wall 200b of the workpiece 200 so that the bottom wall 200d of the workpiece abuts against the plurality of supports 1323d. Then, the rotating drive 121 drives the rotating component 122 to rotate the positioning component 130 and the workpiece 200 by 90°. At this time, the workpiece 200 is in a vertical state. The first drive body 1312 drives the sliding seat 132 to move the adsorption component 133 and the workpiece 200 along the Z-axis until the fourth side wall 200e of the workpiece 200 abuts against the first positioning surface 123a. Subsequently, the machining mechanism processes the first side 200g of the workpiece 200; Furthermore, the rotation drive 121 drives the rotating component 122 to rotate the positioning component 130 and the workpiece 200 by 180°, the first drive body 1312 is reset, and the second drive body 1313 drives the sliding seat 132 to move the adsorption component 133 and the workpiece 200 along the Z-axis until the second side wall 200f of the workpiece 200 abuts against the second positioning surface 123b. Finally, the machining mechanism processes the second side 200h of the workpiece 200, the second driving body 1313 is reset, and the reset driving body 1314 drives the sliding member 1321 to reset, so that the sliding seat 132 drives the workpiece 200 after the second side 200h is processed to disengage from the second positioning surface 123b.

[0055] In the positioning mechanism 100 of the above-mentioned processing device, the positions of the first positioning surface 123a and the second positioning surface 123b are fixed relative to the rotating component 122. The rotating component 120 drives the workpiece 200 to rotate to different angles. The first positioning surface 123a and the second positioning surface 123b can respectively position the fourth side wall 200e and the second side wall 200f, reducing the positioning difference caused by the processing error between different workpieces 200 and the dimensional deviation of the pusher 135 itself, thereby improving the positioning accuracy of the workpiece 200 and thus improving the processing quality of the workpiece 200.

[0056] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A positioning mechanism for positioning a workpiece, the workpiece being provided with a groove, the groove comprising a bottom wall and first, second, third and fourth side walls connected in sequence, characterized in that, The positioning mechanism includes: Base; A rotating assembly, rotatably connected to the base, includes a rotation drive, a rotating component, and a stop. The rotation drive is disposed on the base and connected to the rotating component, driving the rotating component to rotate. The stop is disposed on the rotating component and has a first positioning surface and a second positioning surface spaced apart. A positioning component is disposed on the rotating component and includes a translational drive, a sliding seat, an adsorption component, a limiting drive, and two pushing components located in the groove. The translational drive is disposed on the rotating component and connected to the sliding seat. The translational drive drives the sliding seat to move so that the first positioning surface abuts against the fourth side wall or the second positioning surface abuts against the second side wall. The adsorption component is disposed on the sliding seat and carries and adsorbs the bottom wall of the workpiece. The limiting drive connects to the two pushing components and drives the two pushing components to abut against the first side wall and the third side wall respectively. When the adsorption element adsorbs the workpiece, the first positioning surface is located in the groove and corresponds to the fourth sidewall, and the second positioning surface is located in the groove and corresponds to the second sidewall.

2. The positioning mechanism as described in claim 1, characterized in that, The rotating component has a through-hole, and the sliding seat includes: A sliding member is disposed on the side of the rotating member opposite to the stop member and is slidably connected to the rotating member; the limiting drive member is connected to the sliding member. A support member is disposed on the sliding member and passes through the movable hole, so as to move within the movable hole under the drive of the sliding member; the translation drive member is disposed on the support member. The mounting component is disposed on the bearing component and located between the two pushing components, and the adsorption component is disposed on the mounting component.

3. The positioning mechanism as described in claim 2, characterized in that, The mounting component includes: An installation body is disposed on the support member and located between the two pushing members, and one end of the adsorption member is connected to the installation body; The sleeve body is connected to the mounting body and has a receiving hole for accommodating the adsorption member, the receiving hole penetrating the sleeve body.

4. The positioning mechanism as described in claim 3, characterized in that, The mounting component also includes: Multiple supports that support the bottom wall of the workpiece are provided, each of which is located on the side of the sleeve body away from the mounting body and is arranged around the receiving hole.

5. The positioning mechanism as described in claim 4, characterized in that, At least one of the surfaces of the support body that contact the workpiece, the surface of the pusher that contact the workpiece, the first positioning surface, and the second positioning surface is provided with a flexible layer.

6. The positioning mechanism as described in claim 2, characterized in that, One end of the slider is provided with a movable groove. The translation drive includes a connecting body disposed in the movable groove and connected to the rotating member. A first driving body and a second driving body with opposite driving directions are arranged side by side on the connecting body. The first driving body and the second driving body respectively push the two side walls of the movable groove to move in opposite directions. The slider is provided with a reset driving body on the side away from the movable groove, which is connected to the rotating member and the slider respectively. The reset driving body drives the slider to reset.

7. The positioning mechanism as described in claim 1, characterized in that, The stop member includes: Two first stop bodies are provided on the rotating member and located on opposite sides of the adsorption member along the rotation axis of the rotating member. Each first stop body has a first positioning surface on the side away from the adsorption member. Two second stops are provided on the rotating member and located on opposite sides of the adsorption member along the rotation axis of the rotating member. The two first stops and the two second stops are respectively one-to-one and located on opposite sides of the rotation axis of the rotating member. Each second stop has a second positioning surface on the side away from the adsorption member.

8. The positioning mechanism as described in claim 1, characterized in that, The adsorption element includes: An adsorbent is disposed on the sliding seat and has an air intake hole; An elastic sleeve supports the bottom wall of the workpiece, is disposed on the adsorption body, and communicates with the air intake hole.

9. The positioning mechanism as described in claim 1, characterized in that, The base includes: abutment; A first fixing member is disposed on the base and connected to the rotation drive member; The second fixing member is disposed on the base and spaced apart from the first fixing member along the rotation axis of the rotating member, and the second fixing member is rotatably connected to the rotating member.

10. A processing apparatus for processing a workpiece, the workpiece having a groove, the groove comprising a bottom wall and a first side wall, a second side wall, a third side wall, and a fourth side wall connected sequentially end to end, characterized in that, The processing apparatus includes: The positioning mechanism as described in any one of claims 1 to 9; and A processing mechanism is located on one side of the positioning mechanism and is used to process the side of the workpiece. The side includes a first side disposed opposite to the fourth side wall and a second side disposed opposite to the second side wall.

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