Positioning mechanism

Abstract

The utility model discloses a positioning mechanism which comprises a frame-shaped positioning jig and a pair of positioning clamps arranged on the positioning jig, the pair of positioning clamps are oppositely arranged on the left side and the right side of the positioning jig, and telescopic springs are arranged between the positioning clamps and the positioning jig. A horizontal longitudinal sliding module and a horizontal transverse sliding module are arranged in a frame-shaped structure in the middle of the positioning jig, a longitudinal positioning block is arranged on the horizontal longitudinal sliding module, and a transverse positioning rod is arranged on the horizontal transverse sliding module. An operator installs the wire row on the inner side wall of the frame, specifically at the right-angle turning position of the frame, the longitudinal positioning block abuts against one inner side edge of the L-shaped wire row, the transverse positioning rod abuts against the other inner side edge of the L-shaped wire row, and therefore the wire row is positioned. Afterwards, the pressing piece presses the wire row, so that the wire row is bonded on the inner side wall of the frame. According to the design, the wire row can be stably positioned, and inaccurate assembly caused by displacement of the wire row in the pressing process is avoided.

Description

Technical Field

[0001] The utility model relates to product assembly equipment, in particular to a product positioning mechanism. Background Art

[0002] The electronic watch includes a ring-shaped frame, and a wire row is arranged on the inner side wall of the frame for electrically connecting various electronic components. In order to stabilize the wire row on the inner side wall of the frame, the wire row is bonded to the inner side wall of the frame by means of an adhesive tape. The adhesive tape is a double-sided adhesive tape, which is pre-pasted on the wire row. After the wire row is assembled in place, the operator uses tweezers to tear off the release paper on the adhesive tape. After that, the wire row is pressed by a pressing member to make it firmly bonded to the inner side wall of the frame.

[0003] In order to complete the assembly of the above-mentioned wire arrangement, the removal of the release paper, and the pressing of the wire arrangement, the frame of the electronic watch needs to be positioned on the jig. After the wire arrangement is assembled in place and the release paper is torn off, the wire arrangement needs to be positioned before the pressing member presses the wire arrangement, otherwise, the wire arrangement may shift during the pressing process, resulting in inaccurate assembly. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a set of positioning mechanisms, which can position the frame of an electronic watch and the wire array assembled on the inner side wall of the frame.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a set of positioning mechanisms, including a frame-shaped positioning jig, a pair of positioning clamps arranged on the positioning jig, the pair of positioning clamps are relatively arranged on the left and right sides of the positioning jig, a telescopic spring is arranged between the positioning clamps and the positioning jig, a horizontal longitudinal sliding module and a horizontal transverse sliding module are arranged in the frame structure in the middle of the positioning jig, a longitudinal positioning block is arranged on the horizontal longitudinal sliding module, and a transverse positioning rod is arranged on the horizontal transverse sliding module.

[0006] According to the above technical solution, the frame of the electronic watch is positioned in the positioning fixture, and is clamped on both sides by a pair of positioning clamps. The operator installs the wire row on the inner wall of the frame, specifically at the right-angle turn of the frame, and the wire row is L-shaped. Afterwards, the operator tears off the release paper on the wire row with tweezers. Afterwards, the horizontal longitudinal sliding module is displaced longitudinally, and the horizontal transverse sliding module is displaced transversely. The longitudinal positioning block abuts against one inner side of the L-shaped wire row, and the transverse positioning rod abuts against the other inner side of the L-shaped wire row. In this way, the wire row is positioned. Afterwards, the pressing member presses the wire row so that the wire row is bonded to the inner wall of the frame.

[0007] The utility model can stably position the wire array after the wire array is assembled in place and the release paper is torn off and before the pressing piece presses the wire array, thereby preventing the wire array from shifting during the pressing process and causing inaccurate assembly.

[0008] The positioning fixture is provided with a positioning clamp groove, the positioning clamp is matched in the positioning clamp groove, and a cover plate is installed on the positioning clamp groove.

[0009] The positioning fixture includes an upper part and a lower part, the positioning clamp is installed in the upper part, the horizontal longitudinal sliding module and the horizontal lateral sliding module are arranged in the lower part, and the lower part is provided with a front limit block and a rear limit block, as well as a left limit block and a right limit block. The front limit block and the rear limit block limit the front and rear displacement of the horizontal longitudinal sliding module, and the left limit block and the right limit block limit the left and right displacement of the horizontal lateral sliding module.

[0010] The horizontal longitudinal sliding module is provided with a first magnet and a second magnet, the front limit block is provided with a front magnet, and the rear limit block is provided with a rear magnet. The first magnet can be attracted to the front magnet, and the second magnet can be attracted to the rear magnet; the horizontal transverse sliding module is provided with a third magnet and a fourth magnet, the left limit block is provided with a left magnet, and the right limit block is provided with a right magnet. The third magnet can be attracted to the left magnet, and the fourth magnet can be attracted to the right magnet.

[0011] The horizontal longitudinal sliding module moves forward and contacts the front limit block, and the front magnet is attracted to the first magnet. At this time, the longitudinal positioning block on the horizontal longitudinal sliding module contacts the line row. The horizontal longitudinal sliding module moves backward and contacts the rear limit block, and the rear magnet is attracted to the second magnet. At this time, the longitudinal positioning block on the horizontal longitudinal sliding module is away from the line row.

[0012] The horizontal lateral sliding module moves to the right and contacts the right limit block, and the right magnet is attracted to the fourth magnet. At this time, the lateral positioning rod on the horizontal lateral sliding module contacts the line row. The horizontal lateral sliding module moves to the left and contacts the left limit block, and the left magnet is attracted to the third magnet. At this time, the lateral positioning rod on the horizontal lateral sliding module is away from the line row.

[0013] The lower part is provided with a first sensor and a second sensor. The first sensor is located beside the horizontal longitudinal sliding module and is activated by the displacement of the horizontal longitudinal sliding module. The second sensor is located beside the horizontal transverse sliding module and is activated by the displacement of the horizontal transverse sliding module. When the longitudinal positioning block on the horizontal longitudinal sliding module abuts against the wire row, the first sensor is activated. When the transverse positioning rod on the horizontal transverse sliding module abuts against the wire row, the second sensor is activated. When both the first sensor and the second sensor are activated, the external indicator light prompts the operator to know that the wire row has been positioned and that subsequent actions can be performed, that is, the pressing piece can press the wire row.

[0014] A driving unit is provided at the bottom of the positioning fixture, and the driving unit includes a clamping claw cylinder, a transverse horizontal cylinder and a longitudinal horizontal cylinder. A pair of positioning clamp driving rods are provided on the clamping claw cylinder. A first downward extension rod is fixed at the bottom of the positioning clamp, and a convex portion for driving the first downward extension rod is provided at the top of the positioning clamp driving rod; a second downward extension rod is fixed at the bottom of the horizontal longitudinal sliding module, and a third downward extension rod is fixed at the bottom of the horizontal transverse sliding module. The longitudinal horizontal cylinder is provided with a longitudinal driving rod, and a groove is provided at the top of the longitudinal driving rod for matching with the bottom end of the second downward extension rod; the transverse horizontal cylinder is provided with a transverse driving rod, and a groove is provided at the top of the transverse driving rod for matching with the bottom end of the third downward extension rod.

[0015] The clamping claw cylinder drives a pair of positioning clamps away through the positioning clamp driving rod and the first downward extension rod. When the pair of positioning clamps move away, the frame of the electronic watch is released, and the operator can remove the frame from the positioning fixture. The longitudinal horizontal cylinder drives the horizontal longitudinal sliding module to move forward and backward through the longitudinal driving rod and the second downward extension rod. The transverse horizontal cylinder drives the horizontal transverse sliding module to move left and right through the transverse driving rod and the third downward extension rod.

[0016] The driving unit includes a base and a vertical lifting cylinder, a clamping claw cylinder, a transverse horizontal cylinder and a longitudinal horizontal cylinder are installed on the base, and the base is installed on the vertical lifting cylinder. The positioning jig is installed on a turntable, the turntable is installed on a workbench, a bracket is installed at the bottom of the workbench, and the vertical lifting cylinder is installed on the bracket. After the longitudinal horizontal cylinder drives the longitudinal positioning block to position the line row, and the transverse horizontal cylinder drives the transverse positioning rod to position the line row, the vertical lifting cylinder drives the base to descend, the positioning clamp driving rod disengages from the first downward extending rod, the longitudinal driving rod disengages from the second downward extending rod, and the transverse driving rod disengages from the third downward extending rod. Afterwards, the turntable rotates, and the positioning jig moves to the next workstation. The design of the utility model that the driving unit and the positioning jig can be disengaged provides conditions for the positioning jig to rotate while carrying the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 is a schematic diagram of a positioning mechanism;

[0019] Figure 2 A schematic diagram of a positioning mechanism from another perspective;

[0020] Figure 3 This is an exploded diagram of a positioning mechanism;

[0021] Figure 4 is a schematic diagram of a drive unit;

[0022] Figure 5 This is a schematic diagram of the positioning fixture;

[0023] Figure 6 This is a schematic diagram of the positioning fixture observed from below;

[0024] Figure 7 This is an exploded view of the positioning fixture;

[0025] Figure 8 is a schematic diagram of a positioning mechanism applied to a turntable;

[0026] Fig. 9 This is a schematic diagram obtained from the turntable below.

[0027] Explanation of symbols in the figure:

[0028] 10. Positioning fixture; 101. Positioning clip groove; 11. Positioning clip; 111. First downward extending rod; 12. Cover plate; 13. Upper half; 14. Lower half; 151. Front limit block; 152. Rear limit block; 161. Left limit block; 162. Right limit block;

[0029] 20. Horizontal longitudinal sliding module; 21. Longitudinal positioning block; 22. Second downward extending rod;

[0030] 30. Horizontal lateral sliding module; 31. lateral positioning rod; 32. third downward extending rod;

[0031] 41. a first sensor; 42. a second sensor;

[0032] 50, driving unit; 51, gripper cylinder; 511, positioning clamp driving rod; 52, horizontal cylinder; 521, horizontal driving rod; 53, horizontal cylinder; 531, vertical driving rod; 54, base; 55, vertical lifting cylinder;

[0033] 60. Turntable; 61. Workbench; 62. Bracket. DETAILED DESCRIPTION

[0034] like Figure 5 , Figure 7 A positioning mechanism includes a frame-shaped positioning fixture 10, a pair of positioning clamps 11 arranged on the positioning fixture, the pair of positioning clamps are relatively arranged on the left and right sides of the positioning fixture, a telescopic spring is arranged between the positioning clamps and the positioning fixture, a horizontal longitudinal sliding module 20 and a horizontal transverse sliding module 30 are arranged in the frame structure in the middle of the positioning fixture, a longitudinal positioning block 21 is arranged on the horizontal longitudinal sliding module, and a transverse positioning rod 31 is arranged on the horizontal transverse sliding module.

[0035] The frame of the electronic watch is positioned in the positioning fixture 10, and is clamped on both sides by a pair of positioning clamps 11. The operator installs the wire row on the inner wall of the frame, specifically at the right-angle turn of the frame, and the wire row is L-shaped. Afterwards, the operator tears off the release paper on the wire row with tweezers. Afterwards, the horizontal longitudinal sliding module 20 is displaced longitudinally, and the horizontal transverse sliding module 30 is displaced transversely. The longitudinal positioning block 21 is abutted against one inner side of the L-shaped wire row, and the transverse positioning rod 31 is abutted against the other inner side of the L-shaped wire row. In this way, the wire row is positioned. Afterwards, the pressing member presses the wire row so that the wire row is bonded to the inner wall of the frame.

[0036] The positioning fixture 10 is provided with a positioning clamping groove 101 , in which the positioning clamp 11 is fitted, and a cover plate 12 is installed on the positioning clamping groove.

[0037] The positioning fixture 10 includes an upper part 13 and a lower part 14, the positioning clamp 11 is installed in the upper part, the horizontal longitudinal sliding module 20 and the horizontal lateral sliding module 30 are arranged in the lower part, and the lower part is provided with a front limit block 151 and a rear limit block 152, as well as a left limit block 161 and a right limit block 162. The front limit block and the rear limit block limit the front and rear displacement of the horizontal longitudinal sliding module, and the left limit block and the right limit block limit the left and right displacement of the horizontal lateral sliding module.

[0038] The horizontal longitudinal sliding module 20 is provided with a first magnet and a second magnet, the front limit block 151 is provided with a front magnet, and the rear limit block 152 is provided with a rear magnet. The first magnet can be attracted to the front magnet, and the second magnet can be attracted to the rear magnet; the horizontal transverse sliding module 30 is provided with a third magnet and a fourth magnet, the left limit block is provided with a left magnet, and the right limit block is provided with a right magnet. The third magnet can be attracted to the left magnet, and the fourth magnet can be attracted to the right magnet.

[0039] The horizontal longitudinal sliding module 20 moves forward and contacts the front limit block 151, and the front magnet is attracted to the first magnet. At this time, the longitudinal positioning block 21 on the horizontal longitudinal sliding module 20 contacts the wire row. The horizontal longitudinal sliding module moves backward and contacts the rear limit block 152, and the rear magnet is attracted to the second magnet. At this time, the longitudinal positioning block 21 on the horizontal longitudinal sliding module 20 is away from the wire row.

[0040] The horizontal lateral sliding module 30 moves to the right and contacts the right limit block 162, and the right magnet is attracted to the fourth magnet. At this time, the lateral positioning rod 31 on the horizontal lateral sliding module 30 contacts the wire row. The horizontal lateral sliding module 30 moves to the left and contacts the left limit block 161, and the left magnet is attracted to the third magnet. At this time, the lateral positioning rod 31 on the horizontal lateral sliding module 30 is away from the wire row.

[0041] Combination Figure 5 , Figure 7, the lower part 14 is provided with a first sensor 41 and a second sensor 42. The first sensor is located beside the horizontal longitudinal sliding module 20 and is activated by the displacement of the horizontal longitudinal sliding module; the second sensor is located beside the horizontal transverse sliding module 30 and is activated by the displacement of the horizontal transverse sliding module. When the longitudinal positioning block 21 on the horizontal longitudinal sliding module 20 abuts against the wire row, the first sensor 41 is activated. When the transverse positioning rod 31 on the horizontal transverse sliding module 30 abuts against the wire row, the second sensor 42 is activated. Both the first sensor and the second sensor are activated, and the external indicator light prompts the operator to know that the wire row has been positioned and that subsequent actions can be performed, that is, the pressing member can press the wire row.

[0042] refer to Figures 1 to 4 ,as well as, Figure 6 A driving unit 50 is provided at the bottom of the positioning fixture 10, and the driving unit includes a clamping claw cylinder 51, a horizontal horizontal cylinder 52 and a longitudinal horizontal cylinder 53. A pair of positioning clamp driving rods 511 are provided on the clamping claw cylinder. A first downward extension rod 111 is fixed at the bottom of the positioning clamp 11, and a convex portion for driving the first downward extension rod is provided at the top of the positioning clamp driving rod; a second downward extension rod 22 is fixed at the bottom of the horizontal longitudinal sliding module 20, and a third downward extension rod 32 is fixed at the bottom of the horizontal horizontal sliding module 30. The longitudinal horizontal cylinder is provided with a longitudinal driving rod 531, and a groove is provided at the top of the longitudinal driving rod for matching with the bottom end of the second downward extension rod. The horizontal horizontal cylinder is provided with a transverse driving rod 521, and a groove is provided at the top of the transverse driving rod for matching with the bottom end of the third downward extension rod.

[0043] The clamping cylinder 51 drives the pair of positioning clamps 11 away through the positioning clamp driving rod 511 and the first downward extending rod 111. When the pair of positioning clamps 11 are away, the frame of the electronic watch is released, and the operator can remove the frame from the positioning fixture 10. The longitudinal horizontal cylinder 53 drives the horizontal longitudinal sliding module 20 to move forward and backward through the longitudinal driving rod 531 and the second downward extending rod 22. The transverse horizontal cylinder 52 drives the horizontal transverse sliding module 30 to move left and right through the transverse driving rod 521 and the third downward extending rod 32.

[0044] The driving unit 50 includes a base 54 and a vertical lifting cylinder 55, the clamping claw cylinder 51, the horizontal horizontal cylinder 52 and the longitudinal horizontal cylinder 53 are mounted on the base, and the base is mounted on the vertical lifting cylinder. The positioning fixture 10 is mounted on a turntable 60, and the turntable is mounted on a workbench 61. A bracket 62 is installed at the bottom of the workbench, and the vertical lifting cylinder 55 is mounted on the bracket. After the longitudinal horizontal cylinder 53 drives the longitudinal positioning block 21 to position the wire row, and the horizontal horizontal cylinder 52 drives the horizontal positioning rod 31 to position the wire row, the vertical lifting cylinder 55 drives the base 54 to descend, the positioning clamp driving rod 511 is disengaged from the first downward extension rod 111, the longitudinal driving rod 531 is disengaged from the second downward extension rod 22, and the horizontal driving rod 521 is disengaged from the third downward extension rod 32. Afterwards, the turntable 60 rotates, and the positioning fixture 10 moves to the next station.

[0045] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A positioning mechanism, comprising a frame-shaped positioning fixture (10), a pair of positioning clips (11) arranged on the positioning fixture, the pair of positioning clips being arranged on the left and right sides of the positioning fixture, and a telescopic spring being arranged between the positioning clips and the positioning fixture, characterized in that: A horizontal longitudinal sliding module (20) and a horizontal transverse sliding module (30) are arranged in a frame-shaped structure in the middle of the positioning fixture, a longitudinal positioning block (21) is arranged on the horizontal longitudinal sliding module, and a transverse positioning rod (31) is arranged on the horizontal transverse sliding module.

2. A positioning mechanism as claimed in claim 1, characterized in that: The positioning fixture (10) is provided with a positioning clamp groove (101), the positioning clamp (11) is matched in the positioning clamp groove, and a cover plate (12) is installed on the positioning clamp groove.

3. A positioning mechanism as claimed in claim 1, characterized in that: The positioning fixture (10) comprises an upper part (13) and a lower part (14), the positioning clamp (11) is installed in the upper part, the horizontal longitudinal sliding module (20) and the horizontal transverse sliding module (30) are arranged in the lower part, and the lower part is provided with a front limit block (151) and a rear limit block (152), as well as a left limit block (161) and a right limit block (162), the front limit block and the rear limit block limit the front and rear displacement of the horizontal longitudinal sliding module, and the left limit block and the right limit block limit the left and right displacement of the horizontal transverse sliding module.

4. A positioning mechanism as claimed in claim 3, characterized in that: The horizontal longitudinal sliding module (20) is provided with a first magnet and a second magnet, the front limit block (151) is provided with a front magnet, the rear limit block (152) is provided with a rear magnet, the first magnet can be attracted to the front magnet, and the second magnet can be attracted to the rear magnet; the horizontal transverse sliding module (30) is provided with a third magnet and a fourth magnet, the left limit block is provided with a left magnet, the right limit block is provided with a right magnet, the third magnet can be attracted to the left magnet, and the fourth magnet can be attracted to the right magnet.

5. A positioning mechanism as claimed in claim 4, characterized in that: The lower part (14) is provided with a first sensor (41) and a second sensor (42). The first sensor is located beside the horizontal longitudinal sliding module (20) and is activated by the displacement of the horizontal longitudinal sliding module; the second sensor is located beside the horizontal transverse sliding module (30) and is activated by the displacement of the horizontal transverse sliding module.

6. A positioning mechanism as claimed in claim 1, characterized in that: A driving unit (50) is provided below the positioning fixture (10), and the driving unit includes a clamping claw cylinder (51), a horizontal horizontal cylinder (52) and a longitudinal horizontal cylinder (53). A pair of positioning clamp driving rods (511) are provided on the clamping claw cylinder. A first downward extension rod (111) is fixed below the positioning clamp (11), and a groove is provided at the top of the positioning clamp driving rod to match the bottom end of the first downward extension rod; a second downward extension rod (22) is fixed below the horizontal longitudinal sliding module (20), and a third downward extension rod (32) is fixed below the horizontal horizontal sliding module (30). The longitudinal horizontal cylinder is provided with a longitudinal driving rod (531), and a groove is provided at the top of the longitudinal driving rod to match the bottom end of the second downward extension rod. The horizontal horizontal cylinder is provided with a transverse driving rod (521), and a groove is provided at the top of the transverse driving rod to match the bottom end of the third downward extension rod.

7. A positioning mechanism as claimed in claim 6, characterized in that: The driving unit (50) comprises a base (54) and a vertical lifting cylinder (55), the clamping cylinder (51), the transverse horizontal cylinder (52) and the longitudinal horizontal cylinder (53) are installed on the base, and the base is installed on the vertical lifting cylinder.

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