Stock bin replacement structure

Abstract

A stock bin replacement structure comprises a fixing plate, a suction nozzle library support and a locking supporting plate, the suction nozzle library support is located on the fixing plate, a placement hole is formed in the suction nozzle library support, a positioning block matched with the suction nozzle library support is installed on the fixing plate, the locking supporting plate is installed on the side, opposite to the positioning block, of the fixing plate, and an installation block is arranged on the locking supporting plate. A locking shaft is installed between the two installation blocks, a locking block matched with the suction nozzle library support is fixedly installed on the locking shaft, the locking shaft is sleeved with a torsional spring, one end of the torsional spring is fixed to the locking supporting plate, and the other end of the torsional spring is fixed to the locking block. The suction nozzles are installed in the placement holes, then the locking block is pulled, the suction nozzle library support is placed on the fixing plate, the positioning block abuts against the suction nozzle library support, the locking block is loosened, the locking block resets under the action of the torsional spring, installation and fixation of the suction nozzle library support are achieved, the suction nozzle library support can be disassembled only by pulling the locking block in the disassembling process, and operation is easy.

Description

Technical Field

[0001] This utility model relates to the field of chip mounter technology, and in particular to a hopper structure for a chip mounter. Background Technology

[0002] Pick and place machines are devices used to achieve high-speed, high-precision, fully automatic placement of components. They are the most critical and complex equipment in the entire SMT production process. The core component of a pick and place machine is the nozzle magazine. Currently, the nozzle magazine of the pick and place machine's hopper mechanism is installed with bolts, which makes installation and disassembly difficult. Summary of the Invention

[0003] To address the technical problem of difficult installation and disassembly of the nozzle magazine in the prior art, this utility model provides a material hopper replacement structure.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0005] A hopper replacement structure includes a fixed plate, a nozzle magazine bracket, and a locking support plate. The nozzle magazine bracket is located on the fixed plate and has mounting holes. A positioning block that mates with the nozzle magazine bracket is installed on the fixed plate. The locking support plate is installed on the side of the fixed plate opposite to the positioning block. The locking support plate has two mounting blocks, and a locking shaft is installed between the two mounting blocks. A locking block that mates with the nozzle magazine bracket is fixedly installed on the locking shaft. A torsion spring is mounted on the locking shaft, with one end of the torsion spring fixed to the locking support plate and the other end of the torsion spring fixed to the locking block.

[0006] Preferably, the nozzle holder is provided with a locking cover, which is a bent double-sided structure. On the horizontal surface of the locking cover, there is a first nozzle mounting hole with a diameter larger than the diameter of the mounting hole and a second nozzle mounting hole with a diameter smaller than the diameter of the mounting hole. The first nozzle mounting hole and the second nozzle mounting hole are connected. A transmission groove is provided on the longitudinal surface of the locking cover. A cylinder fixing plate is installed on one side of the fixing plate corresponding to the longitudinal surface. A cylinder is installed on the cylinder fixing plate. The output end of the cylinder is connected to a transmission block. The transmission block is provided with a third protrusion that cooperates with the transmission groove. One end of the nozzle holder is connected to a tension spring, and the other end of the tension spring is connected to the locking cover.

[0007] Preferably, a guide pin is installed on the nozzle holder, a guide strip hole is provided on the locking cover corresponding to the guide pin, and a guide plate is installed on the guide pin and above the locking cover.

[0008] Preferably, a handle is installed at the end of the locking shaft.

[0009] Preferably, a spring support is installed on the nozzle holder, and the spring support is connected to one end of a tension spring.

[0010] Preferably, the bottom of the nozzle holder is fitted with a guide block corresponding to the positioning block. The positioning block has a first protrusion on the side facing the guide block, and a positioning groove on the first protrusion. The guide block has a second protrusion on the side facing the positioning block and below the first protrusion, and a positioning pin is provided on the guide block corresponding to the positioning groove.

[0011] Preferably, the side of the nozzle holder

[0012] Locking blocks are installed at the bottom of the wall, and locking pins corresponding to the locking blocks are installed between adjacent locking blocks. The locking blocks are provided with locking grooves that cooperate with the locking pins.

[0013] Preferably, a fixing block is installed on the locking support plate corresponding to the locking block, and a spherical plunger is installed on the fixing block.

[0014] Preferably, the handle has a bending structure.

[0015] Preferably, a support column is installed at the bottom of the fixing plate.

[0016] The advantages of this utility model compared with the prior art are:

[0017] First, install the nozzle into the mounting hole. Then, move the locking block to place the nozzle holder on the fixed plate, ensuring that the positioning block is against the nozzle holder. Release the locking block, and the locking block will return to its original position against the nozzle holder under the action of the torsion spring. The locking block and the positioning block work together to install and fix the nozzle holder. To disassemble, simply move the locking block to remove the nozzle holder. Installation and disassembly are convenient and the operation is simple. Attached Figure Description

[0018] Figure 1 This is a perspective view of a material hopper replacement structure according to this utility model.

[0019] Figure 2 This is a front view of a hopper replacement structure according to this utility model.

[0020] Figure 3 This is a rear view of a hopper replacement structure according to this utility model.

[0021] Figure 4 This is a top view of a hopper replacement structure according to this utility model.

[0022] Figure 5 This is a three-dimensional view of the hopper replacement structure and the hidden suction nozzle support of this utility model.

[0023] Figure 6 This is a three-dimensional view of a suction cup support for a material hopper replacement structure according to this utility model.

[0024] Figure 7 This is a utility model Figure 6A three-dimensional view of the opposite side.

[0025] Figure 8 This is a utility model Figure 6 Rear view.

[0026] Figure 9 This is a utility model Figure 6 Side view.

[0027] Figure 10 This is a utility model Figure 6 Top view.

[0028] Figure 11 This is a structural diagram showing the fit between the nozzle mounting hole and the placement hole of this utility model.

[0029] Figure 12 This is a utility model Figure 1 A three-dimensional view of the cylinder and fixing plate installation structure of the seed material bin replacement structure.

[0030] Figure 13 This is a utility model Figure 12 The main view.

[0031] Figure 14 This is a utility model Figure 13 Side view.

[0032] Figure 15 This is a perspective view of a suction nozzle holder locking device for a material hopper replacement structure according to this utility model.

[0033] Figure 16 This is a utility model Figure 15 The main view.

[0034] Figure 17 This utility model's nozzle holder is in its installed state. Figure 15 Side view.

[0035] Figure 18 This utility model's nozzle holder is in its disassembled state. Figure 15 Side view.

[0036] In the diagram: 101, fixing plate; 102, positioning block; 103, support column; 104, cylinder fixing plate; 105, cylinder; 106, transmission block; 107, first protrusion; 108, positioning groove; 109, third protrusion; 201, fixing block; 202, torsion spring; 203, locking block; 204, locking shaft; 205, handle; 206, ball plunger; 207, locking support plate; 208, mounting block; 209, locking groove; 210, bent structure; 301. Nozzle holder bracket; 302. Guide block; 303. Locking block; 304. Positioning pin; 305. Spring support; 306. Tension spring; 307. Locking cover; 308. Guide pin; 309. Guide plate; 310. Locking pin; 311. Mounting hole; 312. Second protrusion; 313. First nozzle mounting hole; 314. Second nozzle mounting hole; 315. Horizontal plane; 316. Longitudinal plane; 317. Transmission slot; 318. Guide strip hole. Detailed Implementation

[0037] This utility model provides a hopper replacement structure, such as Figure 1-4 As shown in Figures 6-10, the device includes a fixed plate 101, a nozzle magazine bracket 301, and a locking support plate 207. A support column 103 is mounted on the bottom of the fixed plate 101. The nozzle magazine bracket 301 is located on the fixed plate 101 and has mounting holes 311 for installing nozzles. A positioning block 102 that mates with the nozzle magazine bracket 301 is mounted on the fixed plate 101. A guide block 302 is mounted on the bottom of the nozzle magazine bracket 301 corresponding to the positioning block 102. One side of the positioning block 102 faces the guide block 302. A first protrusion 107 is provided on the side, and a positioning groove 108 is provided on the first protrusion 107. A second protrusion 312 is provided on the side of the guide block 302 facing the positioning block 102 and located below the first protrusion 107. A positioning pin 304 is provided on the guide block 302 corresponding to the positioning groove 108. When the nozzle magazine bracket 301 is in the installation state, the positioning pin 304 is located in the positioning groove 108, and the second protrusion 312 is located below the first protrusion 107, thereby realizing the horizontal and vertical limiting of the nozzle magazine bracket 301.

[0038] like Figure 1-5As shown in Figures 15-18, a locking support plate 207 is mounted on the fixed plate 101 on the side opposite to the positioning block 102. Two mounting blocks 208 are provided on the locking support plate 207, and a locking shaft 204 is installed between the two mounting blocks 208. A locking block 203 that cooperates with the nozzle holder 301 is fixedly mounted on the locking shaft 204. A torsion spring 202 is fitted on the locking shaft 204, with one end fixed to the locking support plate 207 and the other end fixed to the locking block 203. A handle 205 is installed at the end of the locking shaft 204, corresponding to the longitudinal surface 316 of the locking cover 307. The handle 205 has a bending structure 210. A locking block 303 is installed on the bottom side wall of the nozzle holder 301. A locking pin 310 corresponding to the locking block 203 is installed between adjacent locking blocks 303. The locking block 203 is provided with a locking groove 209 that cooperates with the locking pin 310. A fixing block 201 is installed on the locking support plate 207 corresponding to the locking block 303. A ball plunger 206 is installed on the fixing block 201. When the nozzle holder bracket 301 is in the installed state, the locking groove 209 engages with the locking pin 310. Under the action of the torsion spring 202, the locking block 203 cooperates with the positioning block 102 to lock and fix the nozzle holder bracket 301. When the nozzle holder bracket 301 needs to be disassembled, the handle 205 is turned by bending the bending structure 210 to separate the locking groove 209 from the locking pin 310. Then, the nozzle holder bracket 301 is pulled to separate the first protrusion 107 from the second protrusion 312 and the positioning groove 108 from the positioning pin 304, thereby realizing the disassembly of the nozzle holder bracket 301. The fixing block 201 and the ball plunger 206 prevent excessive movement of the nozzle holder bracket 301 during the disassembly process.

[0039] like Figure 1 , 6As shown in Figures 10-14, a locking cover 307 is mounted on the nozzle holder 301. The locking cover 307 has a bent two-sided structure. On the horizontal surface 315 of the locking cover 307, corresponding to the mounting hole 311, there is a first nozzle mounting hole 313 with a diameter larger than that of the mounting hole 311 and a second nozzle mounting hole 314 with a diameter smaller than that of the mounting hole 311. The first nozzle mounting hole 313 and the second nozzle mounting hole 314 are connected. On the longitudinal surface 316 of the locking cover 307, there is a... The transmission slot 317 has a cylinder fixing plate 104 installed on one side of the fixing plate 101 corresponding to the longitudinal surface 316. A cylinder 105 is installed on the cylinder fixing plate 104. The output end of the cylinder 105 is connected to the transmission block 106. The transmission block 106 is provided with a third protrusion 109 that cooperates with the transmission slot 317. A spring support 305 is installed on the nozzle magazine bracket 301. One end of the spring support 305 is connected to the tension spring 306. The other end of the tension spring 306 is connected to the locking cover 307. When the nozzle is in the installation state, the nozzle is installed in the mounting hole 311, which is located below the second nozzle mounting hole 314. When the nozzle needs to be replaced or removed, the cylinder 105 drives the locking cover 307 to move through the transmission block 106, so that the mounting hole 311 is located below the first nozzle mounting hole 313. After the nozzle is replaced or removed, the cylinder 105 stops outputting, and the locking cover 307 is reset under the action of the tension spring 306, so that the mounting hole 311 returns to below the second nozzle mounting hole 314.

[0040] like Figure 10 As shown, a guide pin 308 is installed on the nozzle holder bracket 301, and a guide strip hole 318 is provided on the locking cover 307 corresponding to the guide pin 308. A guide piece 309 is installed on the guide pin 308 and above the locking cover 307. The guide pin 308, the guide strip hole 318 and the guide piece 309 work together to guide and limit the movement of the locking cover 307.

Claims

1. A hopper replacement structure, characterized in that, The device includes a fixed plate (101), a nozzle magazine bracket (301), and a locking plate (207). The nozzle magazine bracket (301) is located on the fixed plate (101) and has mounting holes (311). A positioning block (102) that mates with the nozzle magazine bracket (301) is installed on the fixed plate (101). The locking plate (207) is installed on the fixed plate (101) and is opposite to the positioning block (102). On the side, the locking support plate (207) is provided with two mounting blocks (208), and a locking shaft (204) is installed between the two mounting blocks (208). A locking block (203) that cooperates with the nozzle magazine bracket (301) is fixedly installed on the locking shaft (204). A torsion spring (202) is mounted on the locking shaft (204). One end of the torsion spring (202) is fixed on the locking support plate (207), and the other end of the torsion spring (202) is fixed on the locking block (203).

2. The hopper replacement structure according to claim 1, characterized in that, The nozzle holder (301) is provided with a locking cover (307). The locking cover (307) has a bent two-sided structure. On the horizontal surface (315) of the locking cover (307), corresponding to the mounting hole (311), there is a first nozzle mounting hole (313) with a diameter larger than that of the mounting hole (311) and a second nozzle mounting hole (314) with a diameter smaller than that of the mounting hole (311). The first nozzle mounting hole (313) and the second nozzle mounting hole (314) are connected. The longitudinal surface (315) of the locking cover (307) is also provided with a locking cover (307). 6) A transmission slot (317) is provided on the fixed plate (101) and a cylinder fixing plate (104) is installed on one side of the longitudinal surface (316). A cylinder (105) is installed on the cylinder fixing plate (104). The output end of the cylinder (105) is connected to the transmission block (106). The transmission block (106) is provided with a third protrusion (109) that cooperates with the transmission slot (317). The nozzle magazine bracket (301) is connected to one end of the tension spring (306), and the other end of the tension spring (306) is connected to the locking cover (307).

3. The hopper replacement structure according to claim 2, characterized in that, Guide pins (308) are installed on the nozzle holder (301), and guide strip holes (318) are provided on the locking cover (307) corresponding to the guide pins (308). Guide plates (309) are installed on the guide pins (308) and above the locking cover (307).

4. The hopper replacement structure according to claim 2, characterized in that, A handle (205) is mounted on the end of the locking shaft (204).

5. A hopper replacement structure according to claim 2, characterized in that, A spring support (305) is installed on the nozzle holder (301), and the spring support (305) is connected to one end of a tension spring (306).

6. The hopper replacement structure according to claim 1, characterized in that, The bottom of the nozzle holder (301) is equipped with a guide block (302) corresponding to the positioning block (102). The positioning block (102) has a first protrusion (107) on the side facing the guide block (302), and a positioning groove (108) is provided on the first protrusion (107). The guide block (302) has a second protrusion (312) on the side facing the positioning block (102) and located below the first protrusion (107). A positioning pin (304) is provided on the guide block (302) corresponding to the positioning groove (108).

7. The hopper replacement structure according to claim 1, characterized in that, The nozzle holder bracket (301) has a locking block (303) installed at the bottom of its side wall. A locking pin (310) corresponding to the locking block (203) is installed between adjacent locking blocks (303). The locking block (203) has a locking groove (209) that cooperates with the locking pin (310).

8. A hopper replacement structure according to claim 7, characterized in that, A fixing block (201) is installed on the locking plate (207) corresponding to the locking block (303), and a ball plunger (206) is installed on the fixing block (201).

9. A hopper replacement structure according to claim 4, characterized in that, The handle (205) is provided with a bending structure (210).

10. A hopper replacement structure according to claim 1, characterized in that, The bottom of the fixing plate (101) is equipped with a support column (103).

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