Key positioning mechanism

Abstract

The utility model relates to a key positioning mechanism which comprises a rack, a first driving unit, a second driving unit and a rotating unit, the first driving unit and the rotating unit are installed on the rack, and the second driving unit is installed on the rotating unit. The first driving unit comprises a first electric sliding table and a first clamping jaw connected to the first electric sliding table, the first electric sliding table can drive the first clamping jaw to move in the first direction, and the second driving unit comprises a second electric sliding table and a second clamping jaw connected to the second electric sliding table. The second electric sliding table can drive the second clamping jaw to move in the second direction, the first direction is not parallel to the second direction, and keys are placed on the second clamping jaw. The positioning mechanism not only can realize accurate positioning of the key, but also can realize rotation of the key so as to meet key processing requirements.

Description

TECHNICAL FIELD

[0001] The application relates to a key assembling technology, in particular to a key positioning mechanism. BACKGROUND

[0002] At present, there are two positioning modes for keys, namely visual positioning and mechanical positioning. The visual positioning has a high cost and is difficult to realize simultaneous multi-material work. The mechanical positioning has a relatively low cost and can realize simultaneous work of multiple stations. However, for keys of mobile phones, tablets and other electronic products, since the keys are small and irregular in shape, the existing positioning mechanism is difficult to accurately position such keys. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above defects, the application provides a key positioning mechanism which can not only accurately position the keys but also rotate the keys to meet the key processing requirements and can be applied to the positioning requirements of key products which are small in size and irregular in shape.

[0004] The application adopts the technical scheme that:

[0005] A key positioning mechanism comprises a rack, a first driving unit, a second driving unit and a rotating unit, the first driving unit and the rotating unit are installed on the rack, the second driving unit is installed on the rotating unit, the first driving unit comprises a first electric sliding table and a first clamping jaw connected to the first electric sliding table, the first electric sliding table can drive the first clamping jaw to run in a first direction, the second driving unit comprises a second electric sliding table and a second clamping jaw connected to the second electric sliding table, the second electric sliding table can drive the second clamping jaw to run in a second direction, the first direction is non-parallel to the second direction, the second clamping jaw is placed with a key, the first clamping jaw can clamp the key and fix the key in the second clamping jaw, and the rotating unit can drive the second driving unit to rotate.

[0006] Optionally, the first direction is perpendicular to the second direction, the first electric sliding table is horizontally arranged on the rack, and the second electric sliding table is horizontally arranged on the rotating unit.

[0007] Optionally, the first driving unit further comprises a first clamping jaw fixing plate, the first clamping jaw fixing plate is slidingly connected to the first electric sliding table, and a plurality of first clamping jaws are fixedly arranged on the first clamping jaw fixing plate.

[0008] Optionally, the rotating unit comprises a rotating servo motor, a rotating table and a supporting table, the rotating servo motor is fixedly installed on the rack, the rotating table is connected to the rotating servo motor, and the supporting table is fixedly installed on the rotating table, and the second driving unit is installed on the supporting table.

[0009] Optionally, first and second installation plates are fixedly arranged on the rack, a first end of the supporting table is rotatably installed on the first installation plate through the rotating table, and a second end of the supporting table is rotatably installed on the second installation plate through a rotating shaft.

[0010] Optionally, the first and second installation plates are arranged in parallel, first and second position sensors are fixedly arranged on the second installation plate, the first and second position sensors are arranged vertically, and a blocking rod is fixedly arranged on the rotating shaft, and under the action of the rotating servo motor, the blocking rod can run between the first and second position sensors.

[0011] Optionally, the second driving unit further comprises a second jaw fixing plate, the second jaw fixing plate is slidably connected to the second electric sliding table, and a plurality of second jaws are fixedly arranged on the second jaw fixing plate at intervals.

[0012] Optionally, the second jaw is provided with a mounting groove, and the first driving unit can fix the key in the mounting groove.

[0013] The application has the following beneficial effects: the application comprises a first driving unit, a second driving unit and a rotating unit, the first driving unit comprises a first electric sliding table and a first jaw, the second driving unit comprises a second electric sliding table and a second jaw, the first electric sliding table is used to drive the first jaw to run, the second electric sliding table is used to drive the second jaw to run, the first and second jaws are driven to run by the electric sliding tables, so as to adjust the distance between the first and second jaws, thereby facilitating the feeding of an external feeding mechanism and being applicable to products of different sizes, the key is clamped by the cooperation between the first and second jaws, and the key is fixed in the second jaw under the action of the first jaw, so as to realize the positioning and fixing of the key, the second driving unit is driven to rotate by the rotating unit, so as to realize the rotation of the key on the second jaw, thereby meeting the processing requirements of the next process. Therefore, the three motors in the positioning mechanism work cooperatively, and the multi-edge positioning mode is adopted, so that the key can be accurately positioned and rotated to meet the processing requirements of the key, and the positioning requirement of the key product with small size and irregular shape can be met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1Figure 1 is a schematic view of a key positioning mechanism according to an embodiment of the present application;

[0015] Figure 2 Figure 2 is a schematic view of a key positioning mechanism according to another embodiment of the present application; Figure 1 Figure 3 is an enlarged view of part A in Figure 2;

[0016] Figure 3 Figure 4 is a schematic view of a key positioning mechanism according to another embodiment of the present application; Figure 1 Figure 5 is an enlarged view of part B in Figure 4;

[0017] Figure 4 Figure 6 is a schematic view of a key positioning mechanism according to another embodiment of the present application;

[0018] Figure 1 is a schematic view of a key positioning mechanism according to an embodiment of the present application. As shown in Figure 1, the key positioning mechanism comprises a frame 100, a first mounting plate 110, a second mounting plate 120, a first drive unit 200, a first electric slide 210, a first clamping jaw fixing plate 220, a first clamping jaw 230, a second drive unit 300, a second electric slide 310, a second clamping jaw fixing plate 320, a second clamping jaw 330, a rotating unit 400, a rotating servo motor 410, a rotating table 420, a support table 430, a rotating shaft 440, and a stop lever 450. The first mounting plate 110 is mounted on the frame 100. The second mounting plate 120 is mounted on the frame 100. The first drive unit 200 is mounted on the first mounting plate 110. The first electric slide 210 is mounted on the first drive unit 200. The first clamping jaw fixing plate 220 is mounted on the first electric slide 210. The first clamping jaw 230 is mounted on the first clamping jaw fixing plate 220. The second drive unit 300 is mounted on the second mounting plate 120. The second electric slide 310 is mounted on the second drive unit 300. The second clamping jaw fixing plate 320 is mounted on the second electric slide 310. The second clamping jaw 330 is mounted on the second clamping jaw fixing plate 320. The rotating unit 400 is mounted on the frame 100. The rotating servo motor 410 is mounted on the rotating unit 400. The rotating table 420 is mounted on the rotating servo motor 410. The support table 430 is mounted on the rotating table 420. The rotating shaft 440 is mounted on the support table 430. The stop lever 450 is mounted on the rotating shaft 440. The first drive unit 200 is connected to a first to-position sensor 121. The second drive unit 300 is connected to a second to-position sensor 122. The first to-position sensor 121 is configured to detect the position of the first clamping jaw 230. The second to-position sensor 122 is configured to detect the position of the second clamping jaw 330. The rotating servo motor 410 is configured to rotate the rotating table 420. The rotating shaft 440 is configured to rotate the stop lever 450. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be apparently and completely described below in conjunction with the embodiments of the present application. Obviously, the embodiments described in the present application are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work, belong to the scope of protection of the present application.

[0020] It should be noted that the terms “first”, “second” and the like in the description and claims of the present application and the following drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the objects thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms “comprise” and “have” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] Example: Figures 1-4 As shown, a button positioning mechanism includes a frame 100, a first drive unit 200, a second drive unit 300, and a rotating unit 400. The first drive unit 200 and the rotating unit 400 are mounted on the frame 100, and the second drive unit 300 is mounted on the rotating unit 400. The first drive unit 200 includes a first electric slide 210 and a first gripper 230 connected to the first electric slide 210. The first electric slide 210 can drive the first gripper 230 to run along a first direction. The second drive unit 300 includes a second electric slide 310 and a second gripper 330 connected to the second electric slide 310. The second electric slide 310 can drive the second gripper 330 to run along a second direction. The first direction and the second direction are not parallel. A button is placed on the second gripper 330, and the first gripper 230 can clamp the button and fix the button in the second gripper 330. The rotating unit 400 can drive the second drive unit 300 to rotate. This drives the button to rotate, thereby achieving button positioning and rotation operation. Both the first electric slide 210 and the second electric slide 310 are micro-motion slides.

[0023] The first driving unit 200 includes a first electric sliding table 210 and a first clamping jaw 230, the second driving unit 300 includes a second electric sliding table 310 and a second clamping jaw 330, the first electric sliding table 210 is used for driving the first clamping jaw 230 to run, the second electric sliding table 310 is used for driving the second clamping jaw 330 to run, the first clamping jaw 230 and the second clamping jaw 330 are driven to run by the electric sliding tables, so that the distance between the first clamping jaw 230 and the second clamping jaw 330 is adjusted, thereby facilitating the feeding of an external feeding mechanism, and being applicable to products of different sizes, the keys are clamped by cooperation between the first clamping jaw 230 and the second clamping jaw 330, and the keys are fixed in the second clamping jaw 330 under the action of the first clamping jaw 230, so that the positioning and fixing of the keys are realized, the second driving unit 300 is driven to rotate by the rotating unit 400, so that the keys on the second clamping jaw 330 are rotated, thereby meeting the processing requirements of the next process. Therefore, in the positioning mechanism, three motors are used to work cooperatively, a multi-edge positioning mode is adopted, the accurate positioning of the keys is realized, the rotation of the keys is realized to meet the processing requirements of the keys, and the positioning requirements of key products that are small in size and irregular in shape can be met. The three motors are a first electric sliding table, a second electric sliding table and a rotating servo motor in the rotating unit, and the application can be compatible with the displacement of a maximum of 3mm products and the inclination of an angle of 12°.

[0024] Optionally, springs are designed on the first clamping jaw 230 and the second clamping jaw 330, so that the clamping force can be set according to the requirements of products, thereby protecting the products from being damaged.

[0025] Optionally, the first direction and the second direction are perpendicular to each other, the first electric sliding table 210 is horizontally arranged on the rack 100, and the second electric sliding table 310 is horizontally arranged on the rotating unit 400. Figure 1 As shown in the figure, the first electric sliding table 210 can drive the first clamping jaw 230 to run in the front-back direction, and the second electric sliding table 310 can drive the second clamping jaw 330 to run in the left-right direction. At the beginning, the second clamping jaw 330 is in a vertical state, that is, Figure 1 rotated 90° to the direction of the first clamping jaw 230, that is, the first clamping jaw 230 and the second clamping jaw 330 are arranged face to face, when the keys are placed in the second clamping jaw 330, the second electric sliding table 310 adjusts the position of the second clamping jaw 330, so that the first clamping jaw 230 is opposite to the keys, then the first electric sliding table 210 drives the first clamping jaw 230 to run towards the second clamping jaw 330 and clamps the keys, so that the keys are fixed in the second clamping jaw 330, finally the rotating unit 400 drives the second clamping jaw 330 to rotate away from the first clamping jaw 230, so that the second clamping jaw 330 is in the state shown in the figure, to facilitate the processing of subsequent keys. Figure 1 As shown in the figure, the first clamping jaw 230 can drive the first clamping jaw 230 to run in the front-back direction, and the second electric sliding table 310 can drive the second clamping jaw 330 to run in the left-right direction. At the beginning, the second clamping jaw 330 is in a vertical state, that is,

[0026] As shown in Figure 1 and Figure 4 , the first driving unit 200 further comprises a first clamping jaw fixing plate 220, which is slidingly connected to the first electric sliding table 210, and a plurality of first clamping jaws 230 are fixedly arranged on the first clamping jaw fixing plate 220. Optionally, the side wall of the first clamping jaw fixing plate 220 extends outward to form the first clamping jaw 230. In the embodiment, six first clamping jaws 230 are arranged on the first clamping jaw fixing plate 220, and the distance between two adjacent first clamping jaws 230 is equal. Similarly, six second clamping jaws 330 are arranged on the second driving unit 300, and the first clamping jaw 230 and the second clamping jaw 330 correspond one by one, so that six products can be positioned at the same time, improving the work efficiency.

[0027] As shown in Figure 1 and Figure 4 , the rotating unit 400 comprises a rotating servo motor 410, a rotating table 420 and a support table 430, the rotating servo motor 410 is fixedly installed on the rack 100, the rotating table 420 is connected to the rotating servo motor 410, the support table 430 is fixedly installed on the rotating table 420, and the second driving unit 300 is installed on the support table 430. The rotating servo motor 410 rotates to drive the rotating table 420 to rotate, and the rotating table 420 drives the support table 430 and the second driving unit 300 to rotate synchronously. Optionally, the rotating servo motor 410 can drive the rotating table 420 to rotate by 90°.

[0028] As shown in Figure 1 and Figure 4 , the rack 100 is fixedly provided with a first mounting plate 110 and a second mounting plate 120, a first end of the support table 430 is rotatably installed on the first mounting plate 110 through the rotating table 420, and a second end of the support table 430 is rotatably installed on the second mounting plate 120 through a rotating shaft 440.

[0029] As shown in Figure 1 and Figure 3As shown, the first mounting plate 110 and the second mounting plate 120 are arranged in parallel, the first and second position sensors 121 and 122 are fixed on the second mounting plate 120 and arranged vertically, the blocking rod 450 is fixed on the rotating shaft 440, and the blocking rod 450 can run between the first and second position sensors 121 and 122 under the action of the rotating servo motor 410. By using the information that the blocking rod 450 is located at the first or second position sensor 121 or 122, the operation of the rotating servo motor 410 can be controlled to accurately control the rotation angle of the key.

[0030] As shown in Figure 1 and Figure 4 As shown, the second driving unit 300 further comprises a second jaw fixing plate 320 which is slidingly connected to the second electric sliding table 310, and a plurality of second jaws 330 are fixed on the second jaw fixing plate 320 at intervals, and the second jaws 330 are slidingly mounted on the support table 430 through the sliding plate 340. The second electric sliding table 310 is fixedly installed on the support table 430, as shown in Figure 4 The second electric sliding table 310 can drive the second jaws 330 to slide in the left and right directions along the support table 430. Optionally, six second jaws 330 are arranged on the second jaw fixing plate 320, and the intervals between adjacent second jaws 330 are equal.

[0031] As shown in Figure 2 The second jaw 330 is provided with a mounting groove 331, and the first driving unit 200 can fix the key in the mounting groove 331. The first electric sliding table 210 drives the first jaw 230 to run, and the first jaw 230 acts on the key to push the key into the mounting groove 331, thereby realizing the positioning and fixing of the key.

[0032] The operation method of the present application comprises the following steps:

[0033] Step 1: The external material taking mechanism takes out the key and places the key on the second jaw 330;

[0034] Step 2: The first and second jaws 230 and 330 respectively move a certain displacement under the action of the first and second electric sliding tables 210 and 310, so that the first and second jaws 230 and 330 approach each other, thereby limiting the activity space of the key;

[0035] Step 3: the taking mechanism is released, the first clamping jaw 230 and the second clamping jaw 330 are moved again under the action of the first electric sliding table 210 and the second electric sliding table 310, and the first clamping jaw 230 clamps the button and fixes the button in the mounting groove 331;

[0036] Step 4: the first clamping jaw 230 moves away from the button under the action of the first electric sliding table 210, and the rotary servo motor 410 drives the second driving unit 300 to rotate by 90°, so as to complete the positioning rotation of the button.

[0037] It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A button positioning mechanism, characterized in that: The system includes a frame (100), a first drive unit (200), a second drive unit (300), and a rotating unit (400). The first drive unit (200) and the rotating unit (400) are mounted on the frame (100), and the second drive unit (300) is mounted on the rotating unit (400). The first drive unit (200) includes a first electric slide (210) and a first gripper (230) connected to the first electric slide (210). The first electric slide (210) can drive the first gripper (230) to move along a first direction. The second drive unit (300) includes a second electric slide (310) and a second gripper (330) connected to the second electric slide (310). The second electric slide (310) can drive the second gripper (330) to run along a second direction. The first direction is not parallel to the second direction. A button is placed on the second gripper (330). The first gripper (230) can clamp the button and fix the button in the second gripper (330). The rotating unit (400) can drive the second drive unit (300) to rotate.

2. The button positioning mechanism according to claim 1, characterized in that: The first direction is perpendicular to the second direction. The first electric slide (210) is horizontally arranged on the frame (100), and the second electric slide (310) is horizontally arranged on the rotating unit (400).

3. The button positioning mechanism according to claim 1, characterized in that: The first drive unit (200) further includes a first gripper fixing plate (220), which is slidably connected to the first electric slide (210), and a plurality of first grippers (230) spaced apart from each other are fixed on the first gripper fixing plate (220).

4. The button positioning mechanism according to claim 1, characterized in that: The rotating unit (400) includes a rotating servo motor (410), a rotating table (420), and a support platform (430). The rotating servo motor (410) is fixedly mounted on the frame (100), the rotating table (420) is connected to the rotating servo motor (410), the support platform (430) is fixedly mounted on the rotating table (420), and the second drive unit (300) is mounted on the support platform (430).

5. The button positioning mechanism according to claim 4, characterized in that: The frame (100) is fixedly provided with a first mounting plate (110) and a second mounting plate (120). The first end of the support platform (430) is rotatably mounted on the first mounting plate (110) via the rotating table (420), and the second end of the support platform (430) is rotatably mounted on the second mounting plate (120) via the rotating shaft (440).

6. The button positioning mechanism according to claim 5, characterized in that: The first mounting plate (110) and the second mounting plate (120) are arranged in parallel. The second mounting plate (120) is fixedly provided with a first positioning sensor (121) and a second positioning sensor (122). The first positioning sensor (121) and the second positioning sensor (122) are arranged vertically. The rotating shaft (440) is fixedly provided with a stop bar (450). Under the action of the rotary servo motor (410), the stop bar (450) can run between the first positioning sensor (121) and the second positioning sensor (122).

7. The button positioning mechanism according to claim 4, characterized in that: The second drive unit (300) further includes a second gripper fixing plate (320), which is slidably connected to the second electric slide (310). A plurality of second grippers (330) spaced apart from each other are fixed on the second gripper fixing plate (320), and the second grippers (330) are slidably mounted on the support platform (430) via a slide plate (340).

8. The button positioning mechanism according to claim 7, characterized in that: The second gripper (330) is provided with a mounting groove (331), and the first drive unit (200) can fix the button in the mounting groove (331).

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