Jig for semi-automatically dismounting watch steel needle

Abstract

The utility model discloses a semi-automatic jig for dismantling watch steel needles, which belongs to the technical field of watch production and comprises a base, a positioning table used for placing a dial plate and a watchband, a pressing device used for fixing the position of the dial plate and an ejection mechanism used for ejecting a connecting needle, and the positioning table is provided with a positioning groove capable of accommodating and matching with the outer contour of the dial plate. The ejection mechanism comprises a sliding table in sliding connection with the base, a pair of sliding seats which are in sliding connection with the sliding table and are provided with steel needles, a fixed seat positioned in the center between the sliding seats, and a pushing mechanism capable of pushing the sliding table; the hinge driving mechanism and the pull buckle of the downward pressing device are used for controlling the pressing piece to drive the pressing table to abut against and limit the dial plate, then the adjusting screw of the pushing mechanism pushes the sliding table to drive the sliding base and the steel needle to be close to the small hole, the connecting needle is ejected out of the small hole in the connecting portion of the dial plate and the watchband, and the connecting needle is semi-automatically and rapidly detached by means of the jig. And the labor intensity when a worker completely manually operates the steel needle to eject the connecting needle is reduced.

Description

Technical Field

[0001] The utility model discloses a watch production technology, in particular to a jig for semi-automatically removing watch steel needles. Background Art

[0002] A watch generally includes a dial and a strap, which are processed separately and then assembled. The dial and strap of a watch are assembled by opening connecting holes at the connecting parts of the two, and then manually inserting connecting pins into the connecting holes at both ends with the help of tools such as thimbles to tighten them, thereby achieving the assembly of the dial and strap.

[0003] When the existing dial and strap are manually assembled, it is easy to mis-install the strap. At this time, the connecting needle inserted into the connecting hole needs to be manually ejected. However, the manual ejection with the steel needle is labor-intensive and easy to cause injury. Therefore, a tool is needed to assist in removing the steel needle. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problem and provide a jig for semi-automatically removing steel needles of watches.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jig for semi-automatic removal of watch steel needles, comprising a base, a positioning platform for mounting a dial and a strap, a pressing device for fixing the position of the dial and an ejection mechanism for ejecting the connecting needle, the positioning platform is provided with a positioning groove that can accommodate and match the outer contour of the dial, the ejection mechanism comprises a sliding platform slidably connected to the base, a pair of sliding seats slidably connected to the sliding platform and equipped with steel needles, a fixed seat located at the center between the two sliding seats, and a pushing mechanism that can push the sliding platform, the base is penetrated by an adjustment screw with left-handed threads and right-handed threads on both sides, the adjustment screw is spirally driven with the sliding seat on both sides, the adjustment screw is limited by a retaining spring on both sides of the fixed seat, and the fixed seat and the adjustment screw can be rotatably connected by a bearing.

[0006] Preferably, the pushing mechanism includes an adjusting screw threadedly connected to the base and a tension spring sleeved on the adjusting screw, wherein both ends of the tension spring are respectively connected to the base and the sliding table, and the sliding table is provided with a positioning blind hole that can abut against the adjusting screw.

[0007] Preferably, the pressing device includes a base located on the side of the positioning platform, a pressing platform that can be lifted up and down by a guide rod, a compression spring mounted on the guide rod and abutting the base and the pressing platform at both ends, and a hinged driving mechanism that can drive the pressing platform downward. The hinged driving mechanism includes a positioning rod passing through the pressing platform and the base, an arc-shaped piece hinged to the positioning rod at one end, a handle member hinged to the other end of the arc-shaped piece, and a pressing piece slidably connected to the positioning rod. The pressing piece is hinged to the handle member, and a buckle that can limit the movement of the arc-shaped piece is provided at the hinge between the positioning rod and the arc-shaped piece.

[0008] Preferably, the positioning platform is equipped with positioning grooves that can match several models of dials, and the positioning platform can be detached from the base.

[0009] Preferably, the adjusting screw and the regulating screw are both equipped with handwheels.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] First, the pressing plate is controlled by the hinged driving mechanism and the pull button of the pressing device to drive the pressing table to press the dial tightly to a limit position, and then the adjusting screw of the pushing mechanism is pushed against the sliding table to drive the sliding seat and the steel needle to approach the small hole, and the connecting needle is pushed out from the small hole at the connection between the dial and the strap. With the help of a jig, the semi-automatic quick removal of the connecting needle is realized, which reduces the labor intensity of workers when they completely manually operate the steel needle to push out the connecting needle;

[0012] Secondly, the sliding seat can be controlled by adjusting the screw to drive the steel needle to change the spacing so as to adapt to the dials of different models and sizes to remove the connecting needles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The schematic diagram is a structural diagram of a jig for semi-automatically removing a watch steel needle;

[0014] Figure 2 It is a structural schematic diagram of the ejection mechanism;

[0015] Figure 3 It is a structural schematic diagram of the pressing device;

[0016] Figure 4 It is a structural schematic diagram of the articulated drive mechanism.

[0017] Figure numerals: 1. articulated drive mechanism; 2. pressing platform; 3. positioning platform; 4. base; 5. sliding platform; 6. adjusting screw; 7. adjusting screw; 8. tension spring; 9. handwheel member; 10. positioning blind hole; 11. sliding seat; 12. fixing seat; 13. handle member; 14. pressing plate; 15. arc-shaped plate; 16. pull button; 17. positioning rod; 18. guide rod; 19. compression spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] A semi-automatic jig for removing watch steel needles, such as Figure 1-Figure 4 As shown, it includes a base 4, a positioning platform 3 for accommodating a dial and a strap, a pressing device for fixing the position of the dial and an ejection mechanism for ejecting the connecting needle. The positioning platform 3 is provided with a positioning groove that can accommodate and match the outer contour of the dial. The ejection mechanism includes a sliding platform 5 slidably connected to the base 4, a pair of slide seats 11 slidably connected to the sliding platform 5 and equipped with steel needles, a fixed seat 12 located at the center between the two slide seats 11, and a pushing mechanism that can push the sliding platform 5. The base 4 is penetrated by an adjusting screw 6 with left-handed threads and right-handed threads on both sides respectively. The adjusting screw 6 is spirally driven with the slide seat 11 on both sides respectively, and the fixing seat 12 is limited by a retaining spring on both sides of the fixing seat 12. The fixing seat 12 and the adjusting screw 6 can be rotatably connected through a bearing. The positioning platform 3 is equipped with a positioning groove that can match several models of dials, and the positioning platform 3 can be disassembled and assembled with the base 4. The positioning platform 3 is provided with a small hole corresponding to the connecting hole position to accommodate the insertion of the steel needle.

[0020] Among them, the pushing mechanism includes an adjusting screw 7 threadedly connected to the base 4 and a tension spring 8 sleeved on the adjusting screw 7, the two ends of the tension spring 8 are respectively connected to the base 4 and the sliding table 5, the sliding table 5 is provided with a positioning blind hole 10 that can abut against the adjusting screw 7, and the adjusting screw 7 is equipped with a handwheel part 9, through which the adjusting screw 7 can be manually and conveniently rotated, and the adjusting screw 7 can be screwed in to overcome the action of the tension spring 8 so that the adjusting screw 7 pushes against the positioning blind hole 10 to drive the sliding table 5 to slide close to the positioning table 3, and the adjusting screw 7 is rotated back and reset under the action of the tension spring 8 to drive the sliding table 5 away from the positioning table 3, thereby realizing the sliding stroke control of the sliding table 5, that is, the steel needle of the slide seat 11 can be controlled to approach the small hole corresponding to the connecting hole position of the positioning table 3, and the connecting needle can be pushed out from the connecting hole of the connecting part of the dial and the strap.

[0021] When it is necessary to remove the steel needles of different models of dials, the current positioning table 3 can be removed according to the design size and replaced with a positioning table 3 with a corresponding matching model positioning groove and small hole position, and the handwheel 9 of the adjusting screw 6 is used to control the rotation of the adjusting screw 7 according to the position of the small hole, and the left-handed and right-handed threads in opposite directions are used to drive the slides 11 on both sides to move closer or farther synchronously through spiral transmission, thereby realizing the function of changing the spacing between the steel needles to adapt to the position of the small hole.

[0022] The pressing device includes a base located on the side of the positioning platform 3, a pressing platform 2 that can be lifted up and down by a guide rod 18, a compression spring 19 sleeved on the guide rod 18 and abutting against the base and the pressing platform 2 at both ends, and an articulated driving mechanism 1 that can drive the pressing platform 2 downward. The articulated driving mechanism 1 includes a positioning rod 17 that passes through the pressing platform 2 and the base, an arc-shaped piece 15 hinged to the positioning rod 17 at one end, a handle member 13 hinged to the other end of the arc-shaped piece 15, and a pressing piece 14 slidably connected to the positioning rod 17. The pressing piece 14 is hinged to the handle member 13, and a pull buckle 16 that can limit the movement of the arc-shaped piece 15 is provided at the hinge between the positioning rod 17 and the arc-shaped piece 15.

[0023] When it is necessary to fix the position of the dial placed in the positioning groove, the handle member 13 is pressed down clockwise to drive the hinged arc piece 15 to cooperate with the pressing piece 14 to drive the pressing platform 2 to overcome the elastic force of the compression spring 19 to press the dial in the positioning groove to a limit position, and then the positioning rod 17 and the arc piece 15 are engaged by buckling the pull buckle 16 at the hinge. The positioning rod 17 and the arc piece 15 can be hinged at the hinge through a pin shaft. When the pull buckle 16 is engaged, the pin shaft is pressed to clamp, thereby preventing the handle member 13, the arc piece 15, and the pressing piece 14 from resetting under the action of the compression spring 19 and fixing the pressing platform 2 at the corresponding height position. Opening the buckled pull buckle 16 can make the handle member 13, the arc piece 15, and the pressing piece 14 reset under the action of the compression spring 19, and the pressing platform 2 is away from the positioning platform 3 to contact the dial to a limit position.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A jig for semi-automatically removing watch steel needles, characterized in that: The invention comprises a base (4), a positioning platform (3) for accommodating a dial and a watch strap, a pressing device for fixing the position of the dial and an ejection mechanism for ejecting a connecting needle. The positioning platform (3) is provided with a positioning groove capable of accommodating and matching the outer contour of the dial. The ejection mechanism comprises a sliding platform (5) slidably connected to the base (4), a pair of sliding seats (11) slidably connected to the sliding platform (5) and equipped with steel needles, a fixed seat (12) located at the center between the two sliding seats (11), and a pushing mechanism capable of pushing the sliding platform (5). The base (4) is penetrated by an adjusting screw (6) having left-handed threads and right-handed threads on both sides. The adjusting screw (6) is spirally driven with the sliding seat (11) on both sides. The adjusting screw (6) is limited by a retaining spring on both sides of the fixed seat (12). The fixed seat (12) and the adjusting screw (6) can be rotatably connected via a bearing.

2. The jig for semi-automatically removing watch steel needles according to claim 1 is characterized by: The pushing mechanism comprises an adjusting screw (7) threadedly connected to the base (4) and a tension spring (8) sleeved on the adjusting screw (7); two ends of the tension spring (8) are respectively connected to the base (4) and the sliding platform (5); and the sliding platform (5) is provided with a positioning blind hole (10) capable of abutting against the adjusting screw (7).

3. The jig for semi-automatically removing watch steel needles according to claim 1 is characterized by: The pressing device comprises a base located on the side of the positioning platform (3), a pressing platform (2) that can be raised and lowered by a guide rod (18), a compression spring (19) sleeved on the guide rod (18) and abutting against the base and the pressing platform (2) at both ends, and a hinged driving mechanism (1) that can drive the pressing platform (2) downward, wherein the hinged driving mechanism (1) comprises a positioning rod (17) that passes through the pressing platform (2) and the base, an arc-shaped piece (15) hinged to the positioning rod (17) at one end, a handle member (13) hinged to the other end of the arc-shaped piece (15), and a pressing piece (14) slidably connected to the positioning rod (17), wherein the pressing piece (14) is hinged to the handle member (13), and a pull buckle (16) that can limit the movement of the arc-shaped piece (15) is provided at the hinge between the positioning rod (17) and the arc-shaped piece (15).

4. The jig for semi-automatically removing watch steel needles according to claim 1, characterized in that: The positioning platform (3) is equipped with positioning grooves that can match several types of dials, and the positioning platform (3) can be disassembled and assembled with the base (4).

5. A jig for semi-automatically removing watch steel needles according to claim 1 or 2, characterized in that: The adjusting screw (6) and the regulating screw (7) are both equipped with a hand wheel (9).

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