Automatic clamping mechanism and method of chip mounter

Abstract

The invention provides an automatic clamping mechanism and method of a chip mounter, and relates to the field of clamping mechanisms, the automatic clamping mechanism comprises a base, a vertical rod is welded to the upper end of the base, a top plate is welded to the upper end of the vertical rod, a hydraulic rod is installed in the middle of the upper end of the top plate, and the lower end of the hydraulic rod is connected with a first electric sliding rail through a positioning block; the lower end of the first electric sliding rail is connected with a first electric sliding block, the lower end of the first electric sliding block is connected with a second electric sliding rail, the lower end of the second electric sliding rail is connected with a second electric sliding block, the lower end of the second electric sliding block is connected with a driving device, and the driving device comprises a clamping plate; the inner side of the clamping plate is connected with a pressing device, and the pressing device comprises a fixing plate. The problems that in the prior art, an automatic clamping mechanism is not comprehensive in use functionality, and patch elements are not easy to release and fall or fall obliquely are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping mechanisms, and in particular to an automatic clamping mechanism and method for a chip mounter. Background Art

[0002] In the working process of a chip mounter, first, the chip components are placed into the chip mounter, and then the chips in the chip mounter are placed on the PCB board through a suction nozzle, and the placed chips are welded. After retrieval, the prior art (application number: CN201821138399.X) records that "the automatic clamping mechanism of a chip mounter includes a base, two support plates are symmetrically arranged on the base, a fixing plate is fixedly connected to the upper ends of the two support plates, a lifting mechanism is fixedly connected to the lower end of the fixing plate, the lower end of the lifting mechanism is connected to a positioning plate, a sliding mechanism is fixedly connected to the lower end of the positioning plate, limit blocks are arranged on the side walls at both ends of the sliding mechanism, and the two support plates penetrate through the opposite limit blocks and are slidably connected to their side walls. Two limit plates are symmetrically arranged at the lower end of the sliding mechanism, a clamping mechanism is arranged between the two limit plates, and chip components are arranged on the base. The structure of the present invention is reasonable, which not only improves the working efficiency of placing chip components into the chip mounter, but also can well protect the chip components from being contaminated on their surfaces."

[0003] However, in the prior art, the electric slide rail and electric slider involved in the automatic clamping mechanism can only complete the movement in one direction. In actual application, the chip components need to be placed into the bulk material tray of the chip mounter, and then the tray is placed into the chip mounter for circuit board chip placement operation. The tray has a rectangular grid-like structure, and grid grooves are arranged in a matrix inside. Therefore, with the position of the tray fixed, the electric slider needs to complete the movement in two directions to place the chip components into the bulk material tray. So, the functional use of this clamping structure has the defect of being incomplete. Secondly, during the clamping process of the rubber pad on the inner side of the clamping plate, since the chip components are relatively thin, the edges are easily stuck inside the rubber pad. As a result, when releasing the clamping plate, it may occur that one end of the chip comes off while the other end adheres, leading to the chip not being easy to fall or falling prone to deviation. Summary of the Invention

[0004] To overcome the defects existing in the prior art, the present invention provides an automatic clamping mechanism and method for a chip mounter to solve the problems that the functional use of the automatic clamping mechanism in the prior art is incomplete, and the chip components are not easy to be released and fall or fall obliquely.

[0005] To achieve the above object, an automatic clamping mechanism for a mounter is provided, including: a base, a vertical rod is welded to the upper end of the base, a top plate is welded to the upper end of the vertical rod, and a hydraulic rod is installed in the middle of the upper end of the top plate. The lower end of the hydraulic rod is connected to a first electric slide rail through a positioning block, the lower end of the first electric slide rail is connected to a first electric slider, the lower end of the first electric slider is connected to a second electric slide rail, the lower end of the second electric slide rail is connected to a second electric slider, and the lower end of the second electric slider is connected to a driving device. The driving device includes a clamping plate, a pressing device is connected to the inner side of the clamping plate, the pressing device includes a fixing plate, a telescopic plate is connected to the inner side of the fixing plate, and an installation sleeve is embedded in the telescopic plate. An electric push rod is installed inside the installation sleeve, the lower end of the electric push rod is connected to a rubber block, and a sponge block is bonded to the lower end of the rubber block. A clamping component is connected to the inner side of the lower end of the clamping plate, the clamping component includes a clamping block, a clamping groove is formed in the inner side of the clamping block, a photoelectric switch is installed on the inner wall of the clamping groove, and a shovel plate is arranged at the lower end of the clamping groove.

[0006] Further, vertical sliders are connected to both ends of the first electric slide rail, and the vertical sliders are slidably connected to the outside of the vertical rod.

[0007] Further, the first electric slide rail is installed horizontally, the second electric slide rail is installed vertically, the first electric slider moves left and right, and the second electric slider moves back and forth.

[0008] Further, the driving device is provided with a fixing frame, and the fixing frame is set in an N-shaped structure, and the upper end of the fixing frame is fixed to the lower end of the second electric slider.

[0009] Further, a motor is installed at the outer end of the fixing frame, a double-threaded screw rod is connected to the inner side of the motor, a guide rod is arranged on the upper side of the double-threaded screw rod, the clamping plate is screwed on the outside of the double-threaded screw rod, and the clamping plate is slidably connected to the outside of the guide rod.

[0010] Further, there are two fixing plates on the left and right, which are respectively fixed to the inner end faces of the clamping plate vertically, and both ends of the telescopic plate are slidably inserted into the fixing plates.

[0011] Further, the upper end face of the shovel plate is set as an inclined slope surface, the shovel plate and the clamping block are set as an integral structure, and the inner end of the shovel plate extends beyond the notch of the clamping groove.

[0012] An automatic clamping method for a mounter is as follows:

[0013] S1. Start the first electric slide rail and the second electric slide rail, and move the clamping component to the clamping position through the corresponding electric sliders;

[0014] S2. Start the motor to drive the clamping plate to move. At this time, the shovel plate moves inward from the outside of the patch to shovel up the patch, and then slides into the clamping groove.

[0015] S3. After being sensed by the photoelectric switch, control the motor to stop and at the same time start the electric push rod to push the rubber block downward to move, press the patch component, and then move upward under the action of the hydraulic rod to the bulk material tray, thus completing the clamping.

[0016] The beneficial effects of the present invention are as follows: By using the first electric slide rail, the first electric slider, the second electric slide rail and the second electric slider, it is convenient for the clamping plate and the clamping assembly to move in two directions of front, back, left and right, so as to facilitate placing the patch components into different position grids in the bulk material tray, enhancing the use functionality; By using the clamping block, the clamping groove, the photoelectric switch and the shovel plate included in the clamping assembly, it is convenient to shovel up the patch component from the bottom, slide it into the clamping groove, and stop continuous clamping after being sensed by the photoelectric switch. At the same time, by using the fixing plate, the telescopic plate, the electric push rod, the rubber block and the sponge block included in the pressing device, it is convenient to press the patch component downward to keep it stable during movement, and it is convenient to disengage from the clamping block when released, avoiding the situation of skew. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0018] Figure 2 It is of an embodiment of the present invention Figure 1 Schematic diagram of the structure at position A.

[0019] Figure 3 It is of an embodiment of the present invention Figure 1 Schematic diagram of the structure at position B.

[0020] Figure 4 It is a schematic diagram of a partial structure of the pressing device of an embodiment of the present invention.

[0021] In the figure: 1. Base; 2. Vertical rod; 3. Second electric slider; 4. Second electric slide rail; 5. First electric slider; 6. First electric slide rail; 7. Hydraulic rod; 8. Positioning block; 9. Top plate; 10. Vertical slider; 11. Driving device; 111. Fixed frame; 112. Guide rod; 113. Motor; 114. Double-threaded screw rod; 115. Clamping plate; 12. Pressing device; 121. Fixed plate; 122. Telescopic plate; 123. Mounting sleeve; 124. Electric push rod; 125. Rubber block; 126. Sponge block; 13. Clamping assembly; 131. Clamping block; 132. Clamping groove; 133. Photoelectric switch; 134. Shovel plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following describes the implementation manners of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] Referring to Figures 1 to 4 as shown, the present invention provides an automatic clamping mechanism for a chip mounter, including: a base 1, a second electric slide rail 4, a first electric slide rail 6, a driving device 11, a pressing device 12, and a clamping assembly 13.

[0024] Specifically, a vertical rod 2 is welded to the upper end of the base 1, and a top plate 9 is welded to the upper end of the vertical rod 2. A hydraulic rod 7 is installed in the middle of the upper end of the top plate 9. The lower end of the hydraulic rod 7 is connected to the first electric slide rail 6 through a positioning block 8. The lower end of the first electric slide rail 6 is connected to a first electric slider 5. The lower end of the first electric slider 5 is connected to the second electric slide rail 4. The lower end of the second electric slide rail 4 is connected to a second electric slider 3. The lower end of the second electric slider 3 is connected to the driving device 11. The driving device 11 includes a clamping plate 115. The inner side of the clamping plate 115 is connected to the pressing device 12. The pressing device 12 includes a fixing plate 121. The inner side of the fixing plate 121 is connected to a telescopic plate 122. An installation sleeve 123 is embedded in the telescopic plate 122. An electric push rod 124 is installed inside the installation sleeve 123. The lower end of the electric push rod 124 is connected to a rubber block 125. A sponge block 126 is bonded to the lower end of the rubber block 125. The inner side of the lower end of the clamping plate 115 is connected to the clamping assembly 13. The clamping assembly 13 includes a clamping block 131. A clamping groove 132 is opened on the inner side of the clamping block 131. A photoelectric switch 133 is installed on the inner wall of the clamping groove 132. A shovel plate 134 is arranged at the lower end of the clamping groove 132.

[0025] In this embodiment, the electric push rod 124 is provided with stroke protection, and the rubber block 125 and the sponge block 126 are used to prevent the chip components from being damaged by pressing.

[0026] In this embodiment, the photoelectric switch 133 is electrically connected to the motor 113 and the electric push rod 124 through an externally arranged controller, so that when the two ends of the chip component are about to approach the photoelectric switch 133, it is sensed, and then the motor 113 is controlled to stop running. At the same time, the electric push rod 124 is started to drive the sponge block 126 to move downward to press the chip, which is convenient for protecting the chip component and facilitating the release and falling of the chip component.

[0027] Both ends of the first electric slide rail 6 are connected to vertical sliders 10, and the vertical sliders 10 are slidably connected to the outside of the vertical rod 2; the first electric slide rail 6 is installed horizontally, and the second electric slide rail 4 is installed longitudinally. The first electric slider 5 moves left and right, and the second electric slider 3 moves back and forth.

[0028] As a preferred embodiment, the first electric slide rail 6 and the second electric slide rail 4 facilitate the movement in two directions of front-back, left-right.

[0029] The driving device 11 is provided with a fixing frame 111. The fixing frame 111 is arranged in an N-shaped structure, and the upper end of the fixing frame 111 is fixed to the lower end of the second electric slider 3. A motor 113 is installed at the outer end of the fixing frame 111, and a double-threaded screw rod 114 is connected to the inner side of the motor 113. A guide rod 112 is arranged above the double-threaded screw rod 114. The clamping plate 115 is screwed on the outer side of the double-threaded screw rod 114, and the clamping plate 115 is slidably connected to the outer side of the guide rod 112.

[0030] As a preferred embodiment, the guide rod 112 facilitates the stable directional movement of the clamping plate 115; the double-threaded screw rod 114 facilitates the inward clamping and outward opening of the clamping plate 115.

[0031] There are two fixing plates 121 on the left and right, which are respectively fixed vertically on the inner end faces of the clamping plates 115. Both ends of the telescopic plate 122 are slidably inserted into the fixing plates 121. The upper end face of the shovel plate 134 is an inclined slope, and the shovel plate 134 and the clamping block 131 are integrally structured. The inner end of the shovel plate 134 extends beyond the notch of the clamping groove 132.

[0032] As a preferred embodiment, the fixing plates 121 and the telescopic plates 122 facilitate adapting to the clamping and opening movement of the clamping plates 115; the clamping groove 132 facilitates the limiting and positioning of the chip components. The shovel plate 134 is applicable to thinner chip components. Compared with the rubber plate with planar clamping, it is easier to clamp the chip components.

[0033] An automatic clamping method for a chip mounter. When in use, start the first electric slide rail and the second electric slide rail, and move the clamping assembly to the clamping position through the electric slider. Then start the motor to drive the clamping plate to move. At this time, the shovel plate moves inward from the outside of the chip to shovel up the chip, and then slides into the clamping groove. After being sensed by the photoelectric switch, control the motor to stop and at the same time start the electric push rod to push the rubber block downward to press the chip component, and then move upward under the action of the hydraulic rod to the bulk material tray, thus completing the clamping.

[0034] The automatic clamping mechanism of the chip mounter of the present invention can effectively solve the problems in the prior art that the functional use of the automatic clamping mechanism is not comprehensive enough, and it is not easy for the chip components to be released and fall, or the falling is skewed, realizing the increase of the functional use of the clamping structure and facilitating the stable release and falling of the chip components.

Claims

1. An automatic clamping mechanism for a chip mounter, comprising: Base (1), a vertical rod (2) is welded to the upper end of the base (1), and a top plate (9) is welded to the upper end of the vertical rod (2). A hydraulic rod (7) is installed in the middle of the upper end of the top plate (9). The lower end of the hydraulic rod (7) is connected to a first electric slide rail (6) through a positioning block (8), and the lower end of the first electric slide rail (6) is connected to a first electric slider (5). The lower end of the first electric slider (5) is connected to a second electric slide rail (4), and the lower end of the second electric slide rail (4) is connected to a second electric slider (3). The lower end of the second electric slider (3) is connected to a driving device (11), characterized in that: the driving device (11) includes a clamping plate (115), a pressing device (12) is connected to the inner side of the clamping plate (115), and the pressing device (12) includes a fixing plate (121). A telescopic plate (122) is connected to the inner side of the fixing plate (121), and an installation sleeve (123) is embedded in the telescopic plate (122). An electric push rod (124) is installed inside the installation sleeve (123). The lower end of the electric push rod (124) is connected to a rubber block (125), and a sponge block (126) is bonded to the lower end of the rubber block (125). A clamping component (13) is connected to the inner side of the lower end of the clamping plate (115), and the clamping component (13) includes a clamping block (131). A clamping groove (132) is opened on the inner side of the clamping block (131). A photoelectric switch (133) is installed on the inner wall of the clamping groove (132), and a shovel plate (134) is arranged at the lower end of the clamping groove (132).

2. The automatic clamping mechanism of a mounter according to claim 1, wherein, Vertical sliders (10) are connected to both ends of the first electric slide rail (6), and the vertical sliders (10) are slidably connected to the outside of the vertical rod (2).

3. The automatic clamping mechanism of a chip mounter according to claim 1, characterized in that, The first electric slide rail (6) is installed horizontally, and the second electric slide rail (4) is installed vertically. The first electric slider (5) moves left and right, and the second electric slider (3) moves back and forth.

4. The automatic clamping mechanism of a mounter according to claim 1, characterized in that, The driving device (11) is provided with a fixing frame (111), and the fixing frame (111) is set in an N-shaped structure, and the upper end of the fixing frame (111) is fixed to the lower end of the second electric slider (3).

5. The automatic clamping mechanism of a chip mounter according to claim 4, characterized in that, A motor (113) is installed at the outer end of the fixing frame (111), and a double-threaded screw rod (114) is connected to the inner side of the motor (113). A guide rod (112) is arranged on the upper side of the double-threaded screw rod (114). The clamping plate (115) is screwed on the outside of the double-threaded screw rod (114), and the clamping plate (115) is slidably connected to the outside of the guide rod (112).

6. The automatic clamping mechanism of a chip mounter according to claim 1, characterized in that, There are two fixing plates (121) on the left and right, and they are respectively fixed to the inner end faces of the clamping plate (115) vertically. The two ends of the telescopic plate (122) are slidably inserted into the fixing plates (121).

7. The automatic clamping mechanism of a mounter according to claim 1, characterized in that, The upper end face of the shovel plate (134) is set as an inclined slope, and the shovel plate (134) and the clamping block (131) are set as an integral structure, and the inner end of the shovel plate (134) extends beyond the notch of the clamping groove (132).

8. An automatic clamping method for a chip mounter, characterized by the following steps: S1. Start the first electric slide rail (6) and the second electric slide rail (4), and move the clamping assembly (13) to the clamping position through the corresponding electric sliders; S2. Start the motor (113) to drive the clamping plate (115) to move. At this time, the shoveling plate (134) moves inward from the outside of the patch to shovel up the patch, and then slides into the clamping groove (132); S3. After being sensed by the photoelectric switch, control the motor (113) to stop running and at the same time start the electric push rod (124) to push the rubber block (125) downward to move, press the patch element, and then move upward to the bulk material tray under the action of the hydraulic rod (7), thereby completing the clamping.

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