Clamping mechanism for SMT chip mounter

Abstract

The utility model relates to the technical field of SMT chip mounter clamping mechanisms, and discloses a clamping mechanism for an SMT chip mounter, which comprises a moving table, clamping blocks positioned at two ends above the top of the moving table and a bottom plate positioned below the bottom of the moving table, the first servo motor is arranged in the middle of one end of the moving table, the output end of the first servo motor is connected with a two-way screw penetrating into the adjusting block, and a movable groove is formed in the middle of the top end of the interior of the clamping block. The two sets of clamping blocks can be oppositely adjusted through the first servo motor, the two-way screw and the adjusting block, the two ends of a PCB can be clamped into clamping grooves in the two sets of clamping blocks, the first servo motor can be powered off in time through the movable plate, the movable rod and the touch switch, and therefore the situation that the PCB is damaged due to continuous movement of the clamping blocks is prevented; and the clamping effect on the PCB is better, and the practicability of the clamping mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a clamping mechanism of an SMT placement machine, in particular to a clamping mechanism used for an SMT placement machine. Background Art

[0002] The SMT placement machine is a device that accurately places surface mount components on PCB pads by moving the placement head. In the production line, it is configured after the dispensing machine or screen printer. In order to make the use of the placement machine more accurate, the PCB board needs to be clamped and fixed by a clamping mechanism.

[0003] Application number CN202121554400.9 discloses a clamping device for an SMT placement machine, which includes a workbench, a clamping mechanism connected to the workbench, and a transmission mechanism, wherein the clamping mechanism includes a placement table connected to the workbench, a clamping member, and a driving member, wherein the clamping member is provided on both sides of the placement table, the driving member is used to drive the two clamping members to move closer to or away from each other, and the transmission mechanism is used to transmit the clamping mechanism. The present application has the effect of facilitating the clamping of circuit boards and improving the ability to adapt to the size of circuit boards; the clamping device clamps the PCB board through two groups of clamping blocks, but during the movement of the two groups of clamping blocks, the movement cannot be stopped in time, thereby squeezing the PCB board, which is easy to cause damage to the PCB board, resulting in poor practicality of the clamping mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping mechanism for an SMT placement machine to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a clamping mechanism for an SMT placement machine, comprising a moving platform, clamping blocks located at both ends above the top of the moving platform, and a bottom plate located below the bottom of the moving platform, wherein the moving platform comprises:

[0006] An adjusting block arranged at the middle position of the bottom of the clamping block;

[0007] A servo motor 1 is arranged at the middle position of one end of the moving platform, and an output end of the servo motor 1 is connected with a bidirectional screw rod penetrating into the inside of the adjusting block.

[0008] Preferably, a movable groove is provided in the middle position of the top end of the clamping block, a clamping groove is provided at the top of one side of the clamping block, a movable plate is provided inside the movable groove, movable rods that penetrate to the other side of the clamping block are provided at the four corners of one side of the movable groove, a return spring is provided at one end of the outer side of the movable rod located inside the movable groove, a touch switch is provided in the middle position of the movable groove away from the side of the movable plate, cylinders are provided at both ends of the top of the clamping block, and a clamping plate is provided at the output end of the cylinder.

[0009] Preferably, a mounting block is provided at the middle position of one side of the moving platform, a servo motor 2 is installed at one end of the mounting block, a gear is provided at the output end of the servo motor 2, and a rack is provided at the middle position of the top of the base plate.

[0010] Preferably, an adjustment slot is provided inside the movable platform, the adjustment block is movably connected to the movable platform via the adjustment slot, and the servo motor is detachably connected to the movable platform via a fixing bolt.

[0011] Preferably, threaded holes matching the bidirectional screws are arranged inside the two groups of adjustment blocks, and a support platform is arranged above the top of the moving platform.

[0012] Preferably, a movable hole is provided on one side of the clamping block at the position of the movable rod, the movable rod is movably connected to the clamping block through the movable hole, and the movable plate is movably connected to the clamping block through the movable groove.

[0013] Preferably, a limiting block is provided at one end of the movable rod away from the movable plate, and the touch switch is detachably connected to the clamping block via a fixing bolt.

[0014] Preferably, connecting blocks are provided on both sides of the top of the clamping plate, and the telescopic end of the cylinder is connected to the connecting blocks, and a rubber pad is provided at the bottom of the clamping plate.

[0015] Preferably, both ends of the bottom of the movable platform are provided with slide blocks, both ends of the top of the bottom plate are provided with slide rails, and the rack is detachably connected to the bottom plate by fixing bolts.

[0016] Preferably, the output end of the servo motor 2 is connected to a rotating shaft, and the rotating shaft passes through the interior of the gear, and the gear is meshingly connected with the rack.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model can adjust the two groups of clamping blocks towards each other through the servo motor 1, the bidirectional screw rod and the adjusting block, and can clamp the two ends of the PCB board into the clamping grooves inside the two groups of clamping blocks. The servo motor 1 can be powered off in time through the movable plate, the movable rod and the touch switch, so as to prevent the continuous movement of the clamping block from damaging the PCB board, thereby achieving a better clamping effect on the PCB board and improving the practicality of the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the clamping block of the utility model.

[0022] Figure 3 It is a cross-sectional view of the utility model.

[0023] In the figure: 1. moving table; 101. adjusting block; 102. servo motor one; 103. bidirectional screw; 2. clamping block; 201. movable groove; 202. clamping groove; 203. movable plate; 204. movable rod; 205. reset spring; 206. touch switch; 207. cylinder; 208. clamping plate; 3. bottom plate; 301. mounting block; 302. servo motor two; 303. gear; 304. rack. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-3 The utility model provides a clamping mechanism embodiment for an SMT placement machine: a clamping mechanism for an SMT placement machine, comprising a moving platform 1, clamping blocks 2 located at both ends above the top of the moving platform 1, and a bottom plate 3 located below the bottom of the moving platform 1, the moving platform 1 comprising: an adjusting block 101 arranged at the middle position of the bottom of the clamping block 2; a servo motor 102 arranged at the middle position of one end of the moving platform 1, and the output end of the servo motor 102 is connected to a bidirectional screw 103 that penetrates into the inside of the adjusting block 101, and the bidirectional screw 103 is driven to rotate by the servo motor 102, so that the adjusting block 101 can drive the clamping block 2 to move.

[0029] Please refer to Figure 2 and Figure 3A movable groove 201 is provided at the middle position of the top of the clamping block 2, a clamping groove 202 is provided at the top of one side of the clamping block 2, a movable plate 203 is provided inside the movable groove 201, and the movable plate 203 and the clamping block 2 can be moved through the movable groove 201. The four corners of one side of the movable groove 201 are all provided with movable rods 204 that penetrate to the other side of the clamping block 2. The movable rod 204 makes the adjustment of the movable block 203 more stable, and the outer side of the movable rod 204 is provided at one end inside the movable groove 201 There is a reset spring 205, through which the use of the movable plate 203 can be reset. A touch switch 206 is arranged at the middle position of the movable groove 201 away from the side of the movable plate 203. The servo motor 102 can be powered off in time through the touch switch 206. Cylinders 207 are arranged at both ends of the top of the clamping block 2. A clamping plate 208 is arranged at the output end of the cylinder 207. The clamping plate 208 can be driven up and down by the cylinder 207 to facilitate clamping and fixing the PCB board.

[0030] Please refer to Figure 1 and Figure 3 A mounting block 301 is provided at the middle position of one side of the mobile platform 1, and a servo motor 2 302 is installed at one end of the mounting block 301. The servo motor 2 302 can be installed on one side of the mobile platform 1 through the mounting block 301. A gear 303 is provided at the output end of the servo motor 2 302, and a rack 304 is provided at the middle position of the top of the bottom plate 3. The gear 303 and the rack 304 cooperate with each other to provide power for the movement of the mobile platform 1, so as to facilitate the transportation of the clamping mechanism.

[0031] Please refer to Figure 1 and Figure 3, the interior of the mobile platform 1 is provided with an adjustment slot, and the adjustment block 101 is movably connected to the mobile platform 1 through the adjustment slot, so as to facilitate the adjustment of the clamping block 2. The servo motor 102 is detachably connected to the mobile platform 1 through a fixing bolt, and the servo motor 102 is fixedly installed with the mobile platform 1. The interiors of the two groups of adjustment blocks 101 are both provided with threaded holes matching the bidirectional screw 103, which play a role in limit adjustment, so that the two groups of adjustment blocks 101 drive the two groups of clamping blocks 2 to adjust toward each other. A support platform is provided above the top of the mobile platform 1 to support the PCB board. A movable hole is provided on one side of the clamping block 2 at the position of the movable rod 204, and the movable rod 204 is movably connected to the clamping block 2 through the movable hole, and the movable rod 204 can be moved through the movable hole. 4 moves with the clamping block 1 to make the movement of the movable plate 203 more stable. The movable plate 203 is movably connected with the clamping block 2 through the movable groove 201. The movable plate 203 can move inside the clamping block 2 through the movable groove 201. A limit block is set at the end of the movable rod 204 away from the movable plate 203. The touch switch 206 is detachably connected with the clamping block 2 through the fixing bolt, and the touch switch 206 is fixedly installed with the clamping block 2. Both sides of the top of the clamping plate 208 are provided with connecting blocks, and the telescopic end of the cylinder 207 is connected with the connecting block. The clamping plate 208 can be driven by the cylinder 207 to adjust up and down, which is convenient for clamping and fixing the PCB board. A rubber pad is set at the bottom of the clamping plate 208 to avoid damage to the PC board.

[0032] Please refer to Figure 1 and Figure 3 Slide blocks are provided at both ends of the bottom of the mobile platform 1, and slide rails are provided at both ends of the top of the bottom plate 3. The slide blocks and the slide rails make the movement of the mobile platform 1 more stable. The rack 304 is detachably connected to the bottom plate 3 through fixing bolts, and the rack 304 is fixedly installed. The output end of the servo motor 302 is connected with a rotating shaft, and the rotating shaft passes through the inside of the gear 303. The servo motor 302 can drive the gear 303 to rotate, and the gear 303 is meshed with the rack 304. The rotating gear 303 and the fixed rack 304 can provide power for the movement of the mobile platform 1, which is convenient for conveying the PCB board.

[0033] Working principle: Before use, the utility model installs the clamping mechanism inside the SMT placement machine. When in use, turn on the power supply, and the gear 303 can be driven to rotate by the servo motor 2 302 and the rotating shaft. The gear 303 and the rack 304 cooperate with each other, and the movable platform 1 can be moved left and right on the top of the bottom plate 3 by the slide rail and the slider. The PCB board is placed on the support platform on the top of the movable platform 1, and the bidirectional screw 103 is driven to rotate by the servo motor 1 102. The bidirectional screw 103 cooperates with the threaded hole inside the adjusting block 101 to realize the two sets of clamping blocks. 2 is adjusted toward each other, so that the two ends of the PCB board are clamped into the inside of the clamping groove 202, and one end of the PCB board is against the movable plate 203, so that the movable plate 203 moves toward the inside of the movable groove 201 until the movable plate 203 contacts the touch switch 206, thereby immediately cutting off the power to the servo motor 102, and the movement of the clamping block 2 can be stopped in time to avoid damage to the PCB board. At the same time, the cylinder 207 drives the pressing plate 208 to move downward to press and fix the PCB board. After the PCB board is released, the movable plate 203 is reset by the reset spring 205.

[0034] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A clamping mechanism for an SMT placement machine, characterized in that: The mobile platform (1) comprises a mobile platform (1), clamping blocks (2) located at both ends above the top of the mobile platform (1), and a bottom plate (3) located below the bottom of the mobile platform (1). The mobile platform (1) comprises: An adjustment block (101) arranged at the middle position of the bottom of the clamping block (2); A servo motor (102) is arranged at a middle position of one end of the moving platform (1), and an output end of the servo motor (102) is connected to a bidirectional screw (103) penetrating into the interior of the adjustment block (101).

2. A clamping mechanism for an SMT placement machine according to claim 1, characterized in that: A movable groove (201) is provided at the middle position of the top of the clamping block (2), a clamping groove (202) is provided at the top of one side of the clamping block (2), a movable plate (203) is provided inside the movable groove (201), movable rods (204) are provided at the four corners of one side of the movable groove (201) and extend to the other side of the clamping block (2), a return spring (205) is provided at one end of the outer side of the movable rod (204) located inside the movable groove (201), a touch switch (206) is provided at the middle position of one side of the movable groove (201) away from the movable plate (203), cylinders (207) are provided at both ends of the top of the clamping block (2), and a clamping plate (208) is provided at the output end of the cylinder (207).

3. The clamping mechanism for an SMT placement machine according to claim 1, characterized in that: A mounting block (301) is arranged at the middle position of one side of the moving platform (1), a servo motor 2 (302) is installed at one end of the mounting block (301), a gear (303) is arranged at the output end of the servo motor 2 (302), and a rack (304) is arranged at the middle position of the top of the bottom plate (3).

4. The clamping mechanism for an SMT placement machine according to claim 1, characterized in that: An adjustment slot is provided inside the movable platform (1), the adjustment block (101) is movably connected to the movable platform (1) via the adjustment slot, and the servo motor 1 (102) is detachably connected to the movable platform (1) via a fixing bolt.

5. The clamping mechanism for an SMT placement machine according to claim 1, characterized in that: The insides of the two groups of adjustment blocks (101) are both provided with threaded holes matching the bidirectional screw rods (103), and a support platform is provided above the top of the moving platform (1).

6. The clamping mechanism for an SMT placement machine according to claim 2, characterized in that: A movable hole is provided on one side of the clamping block (2) at the position of the movable rod (204); the movable rod (204) is movably connected to the clamping block (2) via the movable hole; and the movable plate (203) is movably connected to the clamping block (2) via the movable groove (201).

7. The clamping mechanism for an SMT placement machine according to claim 2, characterized in that: A limit block is provided at one end of the movable rod (204) away from the movable plate (203), and the touch switch (206) is detachably connected to the clamping block (2) via a fixing bolt.

8. The clamping mechanism for an SMT placement machine according to claim 2, characterized in that: Both sides of the top of the clamping plate (208) are provided with connecting blocks, and the telescopic end of the cylinder (207) is connected to the connecting blocks. The bottom of the clamping plate (208) is provided with a rubber pad.

9. The clamping mechanism for an SMT placement machine according to claim 3, characterized in that: Both ends of the bottom of the movable platform (1) are provided with sliding blocks, and both ends of the top of the bottom plate (3) are provided with sliding rails. The rack (304) is detachably connected to the bottom plate (3) via fixing bolts.

10. The clamping mechanism for an SMT placement machine according to claim 3, characterized in that: The output end of the second servo motor (302) is connected to a rotating shaft, and the rotating shaft passes through the interior of the gear (303), and the gear (303) is meshedly connected with the rack (304).

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