Positioning fixture for chip mounter

Abstract

The utility model discloses a positioning fixture for a patch machine, comprising: a positioning plate, both sides of the positioning plate are provided with adjustment mechanisms, one end of the two adjustment mechanisms is provided with a synchronization component, a fixing mechanism is provided between the two ends of the two adjustment mechanisms, a positioning mechanism for stabilizing the position of the separation mechanism is provided on the top of the fixing mechanism, and a push mechanism is provided on the bottom of the positioning plate, and the push mechanism comprises: a movable groove, which is provided in the middle of the positioning plate; a plurality of connection holes, which are equidistantly provided on the upper surface of the movable groove; a plurality of elastic components, which are provided at both ends of the inner cavity of the movable groove; and a push component, which is provided in the inner cavity of the movable groove. The utility model is suitable for clamping patches of PCB boards of different sizes through the arrangement mode in which the positioning mechanism and the push mechanism are matched, so as to reduce the stuck phenomenon of the PCB board and improve the patch efficiency of the PCB board.

Description

Technical Field

[0001] The utility model relates to the technical field of chip mounter fixtures, in particular to a positioning fixture for a chip mounter. Background Art

[0002] The placement machine is a device used to achieve high-speed, high-precision and fully automatic placement of components. It is the most critical and complex equipment in the entire SMT production. The positioning fixture of the placement machine is generally used to position the PCB board so that the patch can be stably fitted to the PCB board.

[0003] Application No. 202123114714.X discloses an adjustable positioning fixture for a patch machine, which is arranged on the patch platform of the patch machine, and the patch mechanism of the patch machine is arranged above the positioning fixture; the positioning fixture includes a fixture body, an upper limit piece, and a lower limit piece, and the upper limit piece and the lower limit piece are respectively arranged on the upper side and the lower side of the fixture body, the upper limit piece is fixed on the patch platform, and the lower limit piece is movably arranged on the patch platform; the fixture body is a hollow rectangle formed by relatively splicing an upper clamping plate of a U-shaped structure and a lower clamping plate of a U-shaped structure. The above-mentioned clamp is provided with an upper limit member and a lower limit member on the upper side and the lower side of the clamp body respectively. By adjusting the relative position between the upper limit member and the lower limit member, the clamp body can be limited and fixed. However, since the frame composed of the clamp is in a matching state with the PCB board, after the PCB board to be mounted is pressed in the inner cavity of the positioning clamp, the PCB board cannot be quickly ejected out of the inner cavity of the clamp, which can easily cause the PCB board to be stuck in the inner cavity of the clamp, affecting the mounting efficiency of the PCB board. Utility Model Content

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

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for a placement machine, comprising: a positioning plate, both sides of the positioning plate are provided with adjustment mechanisms, one end of the two adjustment mechanisms is provided with a synchronization component, a fixing mechanism is provided between the two ends of the two adjustment mechanisms, a plurality of separation mechanisms are provided between the two fixing mechanisms, a positioning mechanism for stabilizing the position of the separation mechanism is provided at the top of the fixing mechanism, a push mechanism is provided at the bottom of the positioning plate, and the push mechanism comprises:

[0006] A movable groove, wherein the movable groove is provided in the middle of the positioning plate;

[0007] A plurality of connection holes, wherein the plurality of connection holes are equidistantly arranged on the upper surface of the movable groove;

[0008] A plurality of elastic components, wherein the plurality of elastic components are arranged at two ends of the inner cavity of the movable groove;

[0009] A push-up assembly is arranged in the inner cavity of the movable groove.

[0010] Preferably, the elastic component comprises:

[0011] A limiting rod, wherein the limiting rod is arranged in the inner cavity of the movable groove;

[0012] A second tension spring, one end of which is fixed to the top end of the limiting rod;

[0013] A rolling ball, the rolling ball being fixed to the bottom end of the limiting rod;

[0014] A slide groove is provided on one side of the inner wall of the movable groove, and the rolling ball is slidably connected with the inner cavity of the slide groove.

[0015] Preferably, the jacking assembly comprises:

[0016] A top plate, the top plate being slidably connected to the inner cavity of the movable groove;

[0017] A plurality of push rods are fixed to the upper surface of the top plate at equal distances, and the push rods are slidably connected to the inner cavities of adjacent connecting holes.

[0018] Preferably, the adjustment mechanism comprises:

[0019] A plurality of adjustment rods, wherein two of the adjustment rods are fixedly connected to both sides of one end of the positioning plate, and the other two of the adjustment rods are slidably connected to both sides of the other end of the positioning plate;

[0020] A slider, the slider is fixed to the bottom end of the adjustment rod, and the slider is slidably connected with one side of the positioning plate;

[0021] A screw rod, one end of which is rotatably connected to one end of one of the adjustment rods, and the other end of which is threadedly connected to the middle part of the other adjustment rod, and the synchronization component is arranged between the two screw rods.

[0022] Preferably, the fixing mechanism comprises:

[0023] A fixing bar, wherein the fixing bar is fixed between two opposite adjustment rods;

[0024] A T-shaped slot is provided at the bottom of the fixing strip, and a plurality of the partitioning mechanisms are provided between two opposite T-shaped slots;

[0025] A plurality of fixing holes are equidistantly arranged on the upper surface of the fixing bar, and the positioning mechanism is arranged on the top of the fixing bar.

[0026] Preferably, the separation mechanism comprises:

[0027] A separator bar, one end of which is slidably connected to the inner cavity of one of the T-shaped slots;

[0028] A slide bar, one end of which is slidably connected to the inner cavity of another T-shaped slot;

[0029] A positioning block is arranged between the partition bar and the slide bar, and the slide bar is slidably connected to the lower surface of the partition bar.

[0030] Preferably, the positioning mechanism comprises:

[0031] A movable rod, the movable rod being arranged on the upper surface of the fixing bar;

[0032] A plurality of positioning pins, wherein the plurality of positioning pins are fixed at equal intervals on the lower surface of the movable rod, and the positioning pins are slidably interlaced with the adjacent dividing strips and the back end of the sliding strip;

[0033] A handle, wherein the handle is fixed to the middle portion of the movable rod;

[0034] A plurality of first tension springs are respectively fixed at two ends of the movable rod, and the first tension springs are fixedly inserted into the end of the fixing strip.

[0035] Technical effects and advantages of the utility model:

[0036] The utility model uses a positioning mechanism and a push mechanism to cooperate with each other, and utilizes an adjustment mechanism and a fixing mechanism to cooperate with each other, so as to facilitate the adjustment of the longitudinal spacing of the clamp space. Through the separation mechanism, it is convenient to adjust the lateral spacing of the clamp space, so that it is suitable for clamping patches of PCB boards of different sizes. Through the push mechanism, the PCB board after pressing the patch will be pushed out of the clamp space due to the elastic push of the elastic component, so as to reduce the jamming phenomenon of the PCB board and improve the patch efficiency of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0038] Figure 2 It is a schematic diagram of the overall front sectional structure of the utility model.

[0039] Figure 3 It is a schematic diagram of the front structure of the partition rod of the utility model.

[0040] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0041] In the figure: 1. positioning plate; 2. adjustment mechanism; 21. adjustment rod; 22. slider; 23. screw rod; 3. synchronization component; 4. fixing mechanism; 41. fixing bar; 42. T-slot; 43. fixing hole; 5. partition mechanism; 51. partition bar; 52. slide bar; 53. positioning block; 6. positioning mechanism; 61. movable rod; 62. positioning pin; 63. handle; 64. first tension spring; 7. pushing mechanism; 71. movable slot; 72. connecting hole; 73. elastic component; 731. limit rod; 732. second tension spring; 733. rolling ball; 734. slide slot; 74. pushing component; 741. top plate; 742. push rod. DETAILED DESCRIPTION

[0042] 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.

[0043] The utility model provides Figure 1-4 The positioning fixture of a chip placement machine shown in the figure comprises: a positioning plate 1, the positioning plate 1 is installed in the positioning area of ​​the chip placement machine, and adjustment mechanisms 2 are arranged on both sides of the positioning plate 1, and the adjustment mechanism 2 comprises: a plurality of adjustment rods 21, a slider 22 and a screw rod 23, wherein two adjustment rods 21 are fixedly connected at both sides of one end of the positioning plate 1, wherein the other two adjustment rods 21 are slidably connected to both sides of the other end of the positioning plate 1, so that the four adjustment rods 21 can be arranged at the corners of the positioning plate 1, the slider 22 is fixed to the bottom end of the adjustment rod 21, the slider 22 is slidably connected with one side of the positioning plate 1, one end of the screw rod 23 is rotatably connected with one end of one of the adjustment rods 21, and the other end of the screw rod 23 is threadedly connected with the middle part of another of the adjustment rods 21, and through the rotation of the screw rod 23, another of the adjustment rods 21 can be moved in the direction relative to the one of the adjustment rods 21, so as to adjust the longitudinal clamping space on the positioning plate 1;

[0044] Furthermore, a synchronization component 3 is provided at one end of the two adjustment mechanisms 2, and the synchronization component 3 is provided between the two screw rods 23. The synchronization component 3 includes two synchronization wheels and a synchronization belt. The synchronization belt is provided between the two synchronization wheels, and the synchronization wheel is fixed to one end of the screw rod 23. By rotating one of the screw rods 23, the two screw rods 23 are synchronously rotated, so that the longitudinal spacing between the two adjustment rods 21 can be adjusted conveniently.

[0045] Further, a fixing mechanism 4 is provided between the two ends of the two relative adjustment mechanisms 2, and the fixing mechanism 4 includes: a fixing bar 41, a T-shaped slot 42 and a plurality of fixing holes 43. The fixing bar 41 is fixed between the two relative adjustment rods 21, and the two fixing bars 41 are arranged horizontally, and the spacing between the two fixing bars 41 can be adjusted more conveniently by moving the adjustment rod 21. The T-shaped slot 42 is provided at the bottom of the fixing bar 41, and a plurality of fixing holes 43 are equidistantly provided on the upper surface of the fixing bar 41, and the plurality of fixing holes 43 are communicated with the inner cavity of the T-shaped slot 42;

[0046] Furthermore, a plurality of partitioning mechanisms 5 are provided between the two relative fixing mechanisms 4, and the plurality of partitioning mechanisms 5 are provided between the two relative T-slots 42. The partitioning mechanisms 5 include: a partitioning bar 51, a slide bar 52 and a positioning block 53. The partitioning bar 51 and the slide bar 52 are both T-shaped structures at their back ends. One end of the partitioning bar 51 is slidably connected to the inner cavity of one of the T-slots 42, so that the partitioning bar 51 and the slide bar 52 are slidably connected at the bottom of the two fixing bars 41, respectively, so as to adjust the spacing between two adjacent partitioning bars 51 and two adjacent slide bars 52, and to position PCB boards of different sizes. One end of the slide bar 52 is slidably connected to the inner cavity of another T-slot 42, and the positioning block 53 is provided between the partitioning bar 51 and the slide bar 52. The slide bar 52 is slidably connected to the lower surface of the partitioning bar 51, and the positioning block 53 is fixed to one end of the partitioning bar 51. The positioning block 53 is slidably and interlacedly connected to the middle part of the slide bar 52, so as to facilitate the adjustment and stability between the fixing bars 41.

[0047] Furthermore, a positioning mechanism 6 for stabilizing the position of the partition mechanism 5 is provided at the top of the fixing mechanism 4. The positioning mechanism 6 is provided at the top of the fixing bar 41. The positioning mechanism 6 includes: a movable rod 61, a plurality of positioning pins 62, a handle 63 and a plurality of first tension springs 64. The movable rod 61 is provided on the upper surface of the fixing bar 41. A plurality of positioning pins 62 are fixed to the lower surface of the movable rod 61 at equal intervals. The positioning pins 62 are slidably connected to the inner cavity of the fixing hole 43. The positioning pins 62 are slidably interlaced with the adjacent partition bar 51 and the end of the slide bar 52 facing away from each other. The handle 63 is fixed to the middle of the movable rod 61, and a plurality of first tension springs 64 are respectively fixed to the two ends of the movable rod 61. The first tension springs 64 are fixedly inserted into the ends of the fixing bars 41. Through the first tension springs 64, the movable rod 61 can be pulled up through the handle 63, and a plurality of positioning pins 62 can slide stably in the inner cavity of the fixing hole 43, so that the positioning pins 62 can limit the positions of the partition bars 51 and the slide bars 52 at different positions, thereby improving the stability of the positions between adjacent partition bars 51 and two adjacent slide bars 52;

[0048] Further, a push mechanism 7 is provided at the bottom of the positioning plate 1, and the push mechanism 7 includes: a movable groove 71, a plurality of connecting holes 72, a plurality of elastic components 73 and a push component 74, the movable groove 71 is opened in the middle of the positioning plate 1, a plurality of connecting holes 72 are equidistantly opened on the upper surface of the movable groove 71, a plurality of elastic components 73 are arranged at both ends of the inner cavity of the movable groove 71, and the push component 74 is arranged in the inner cavity of the movable groove 71, and through the elastic component 73, the push component 74 can elastically push multiple PCB boards;

[0049] Specifically, the elastic component 73 includes: a limiting rod 731, a second tension spring 732, a rolling ball 733 and a sliding groove 734. The limiting rod 731 is arranged in the inner cavity of the movable groove 71, and the limiting rod 731 is slidably connected with the inner cavity of the movable groove 71. One end of the second tension spring 732 is fixed to the top of the limiting rod 731, and the rolling ball 733 is fixed to the bottom end of the limiting rod 731. The sliding groove 734 is provided on one side of the inner wall of the movable groove 71, and the rolling ball 733 is slidably connected with the inner cavity of the sliding groove 734. Through the arrangement of the rolling ball 733, the limiting rod 731 will not be separated from the inner cavity of the movable groove 71 at will.

[0050] The cam 732 is provided with a plurality of locking plates 741, each of which is provided with a lockhole 744, and the locking plates 732 are provided with a plurality of locking plates 742. The locking plates 732 are provided with a plurality of locking plates 743, each of which is provided with a plurality of locking plates 744.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for a placement machine, comprising: A positioning plate (1), characterized in that adjustment mechanisms (2) are provided on both sides of the positioning plate (1), a synchronization assembly (3) is provided at one end of the two adjustment mechanisms (2), a fixing mechanism (4) is provided between the two ends of the two adjustment mechanisms (2), a plurality of partitioning mechanisms (5) are provided between the two fixing mechanisms (4), a positioning mechanism (6) for stabilizing the position of the partitioning mechanism (5) is provided at the top of the fixing mechanism (4), and a push mechanism (7) is provided at the bottom of the positioning plate (1), and the push mechanism (7) comprises: A movable groove (71), wherein the movable groove (71) is provided in the middle of the positioning plate (1); A plurality of connection holes (72), wherein the plurality of connection holes (72) are equidistantly arranged on the upper surface of the movable groove (71); A plurality of elastic components (73), wherein the plurality of elastic components (73) are arranged at two ends of the inner cavity of the movable groove (71); A push-up assembly (74), wherein the push-up assembly (74) is arranged in the inner cavity of the movable groove (71).

2. A positioning fixture for a chip mounter according to claim 1, characterized in that: The elastic component (73) comprises: A limiting rod (731), wherein the limiting rod (731) is arranged in the inner cavity of the movable groove (71); A second tension spring (732), one end of the second tension spring (732) being fixed to the top end of the limiting rod (731); A rolling ball (733), wherein the rolling ball (733) is fixed to the bottom end of the limiting rod (731); A slide groove (734), wherein the slide groove (734) is provided on one side of the inner wall of the movable groove (71), and the rolling ball (733) is slidably connected to the inner cavity of the slide groove (734).

3. A positioning fixture for a chip mounter according to claim 2, characterized in that: The jacking assembly (74) comprises: A top plate (741), wherein the top plate (741) is slidably connected to the inner cavity of the movable groove (71); A plurality of top rods (742) are fixed at equal distances on the upper surface of the top plate (741), and the top rods (742) are slidably connected to the inner cavities of adjacent connection holes (72).

4. A positioning fixture for a chip mounter according to claim 2, characterized in that: The adjustment mechanism (2) comprises: A plurality of adjustment rods (21), wherein two of the adjustment rods (21) are fixedly connected to both sides of one end of the positioning plate (1), and the other two of the adjustment rods (21) are slidably connected to both sides of the other end of the positioning plate (1); A slider (22), the slider (22) being fixed to the bottom end of the adjustment rod (21), and the slider (22) being slidably connected with one side of the positioning plate (1); A screw rod (23), one end of which is rotatably connected to one end of one of the adjustment rods (21), and the other end of which is threadedly connected to the middle of the other adjustment rod (21), and the synchronization component (3) is arranged between the two screw rods (23).

5. A positioning fixture for a chip mounter according to claim 4, characterized in that: The fixing mechanism (4) comprises: A fixing bar (41), wherein the fixing bar (41) is fixed between two relatively opposite adjustment rods (21); A T-shaped groove (42) is provided at the bottom of the fixing strip (41), and a plurality of the partitioning mechanisms (5) are arranged between two opposite T-shaped grooves (42); A plurality of fixing holes (43) are equidistantly arranged on the upper surface of the fixing bar (41); and the positioning mechanism (6) is arranged on the top of the fixing bar (41).

6. A positioning fixture for a chip mounter according to claim 5, characterized in that: The partition mechanism (5) comprises: A partition bar (51), one end of which is slidably connected to the inner cavity of one of the T-shaped slots (42); A slide bar (52), one end of which is slidably connected to the inner cavity of another T-shaped slot (42); A positioning block (53), wherein the positioning block (53) is arranged between the partition bar (51) and the slide bar (52), and the slide bar (52) is slidably connected to the lower surface of the partition bar (51).

7. A positioning fixture for a chip mounter according to claim 5, characterized in that: The positioning mechanism (6) comprises: A movable rod (61), wherein the movable rod (61) is arranged on the upper surface of the fixing bar (41); A plurality of positioning pins (62), wherein the plurality of positioning pins (62) are fixed at equal intervals on the lower surface of the movable rod (61), and the positioning pins (62) are slidably interlaced and connected with the back ends of the adjacent dividing strips (51) and the sliding strips (52); A handle (63), wherein the handle (63) is fixed to the middle portion of the movable rod (61); A plurality of first tension springs (64) are respectively fixed to two ends of the movable rod (61), and the first tension springs (64) are fixedly inserted into the end of the fixed bar (41).

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