Watch strap assembly jig and watch strap assembly device

Abstract

The present invention discloses a watchband assembly jig and a watchband assembly device, which have high alignment accuracy and good assembly effect. The watchband assembly jig includes a lug positioning component, a watchband positioning component, and an ear needle positioning component. The lug positioning component is fixed to a first fixing frame and includes a watchband fixing seat located in an assembly position and positioning the watchband; the watchband positioning component is mounted on a second fixing frame and includes a watchband positioning platform for positioning the watchband; the ear needle positioning component includes an ear needle guide block mounted on a third fixing frame, the ear needle guide block having ear needle mounting holes corresponding to the ear holes on the watchband; wherein the second fixing frame is slidably connected to the first fixing frame in a front-to-back direction and enables the watchband positioning platform to move between a front loading position and a front assembly position, so that the watchband head on the watchband positioning platform moves between the watchband loading position and the assembly position; the third fixing frame is slidably connected to the second fixing frame in a front-to-back direction and enables the ear needle guide block to move between a avoidance position and directly above the assembly position.

Description

Technical Field

[0001] The present invention relates to a watchband assembly, and in particular to a watchband assembly jig and a watchband assembly device. Background Art

[0002] Currently, the automatic assembly equipment for metal watch straps is relatively mature. However, for nylon watch straps, since nylon watch straps are relatively soft overall, they need to be installed with metal clips on the head of the strap and fixed with ear pins when used. The traditional method of manually fixing the metal clips and ear pins to the head of the nylon watch strap is inefficient and prone to errors.

[0003] To this end, Chinese patents CN214393150U, CN210849955U and other documents disclose automatic installation and assembly processes for watch straps. However, when assembling these watch straps, the watch strap jigs can only fix and position the watch strap body, and cannot align the watch strap, watch lugs and ear studs. Therefore, it is often necessary to have a loading device for the watch lugs and watch hands or to manually place the watch lugs and watch hands in the corresponding positions, which makes it difficult to achieve fully automated production and assembly, and the alignment accuracy between the watch strap, watch lugs and ear studs is poor.

[0004] Therefore, there is an urgent need for a watchband assembly device that can solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a watchband assembly jig and a watchband assembly device, which can simultaneously position and fix the watchband, watch lugs and ear pins on one jig, and realize the assembly and alignment of the three, with high alignment accuracy and good assembly effect.

[0006] In order to achieve the above-mentioned objectives, the present invention discloses a watch strap assembly jig, including a watch lug positioning component, a watch strap positioning component, and an ear needle positioning component. The watch lug positioning component is fixed on a first fixing frame, including a watch lug fixing seat located in an assembly position and positioning the watch lug; the watch strap positioning component is installed on a second fixing frame, including a watch strap positioning platform for positioning the watch strap; the ear needle positioning component includes an ear needle guide block installed on a third fixing frame, and the ear needle guide block has ear needle mounting holes corresponding one to one to the ear holes on the watch strap; wherein, the second fixing frame is slidably connected to the first fixing frame along the front-to-back direction, and enables the watch strap positioning platform to move between the front loading position and the front assembly position, so that the watch strap head on the watch strap positioning platform moves between the watch strap loading position and the assembly position, and the third fixing frame is slidably connected to the second fixing frame along the front-to-back direction, and enables the ear needle guide block to move between the avoidance position and directly above the assembly position.

[0007] Compared with the prior art, the present invention provides positioning jigs for the three parts of the watch strap assembly: the watch strap part, the watch lug part and the ear pin part, and integrates the three positioning jigs into one assembly jig. Through sliding connection, the three positioning jigs can realize the automatic alignment and assembly of the watch strap through relative movement. The alignment accuracy is high, which is convenient for cooperation with other mechanical equipment to realize the fully automatic assembly of the watch strap.

[0008] Preferably, the watchband assembly jig further comprises a first elastic member and a second elastic member. The first elastic member provides an elastic force to move the second fixing frame toward the pre-assembly position; the second elastic member provides an elastic force to move the third fixing frame toward the upper portion of the assembly position. The first elastic member automatically constrains the watchband positioning assembly to slide toward the lug positioning assembly, allowing the watchband's head to be inserted into the lug of the lug positioning assembly. The second elastic member automatically constrains the ear stud guide block to move directly above the assembly position, preventing the lug from ejecting upward when the watch head is inserted into the lug. It also automatically controls the ear stud to move directly above the lug's mounting position, achieving automatic alignment.

[0009] Preferably, the strap loading position and the avoidance position are respectively located at the front and rear sides of the assembly position.

[0010] Preferably, the watch lug includes a clamping body that can wrap the watch head of the watch strap, a first positioning hole and a second positioning hole that penetrate the clamping body in the vertical direction, the watch lug fixing seat includes a stepped positioning platform, a positioning boss provided on the lower-step table surface of the positioning platform and concavely cooperating with the first positioning hole, and a positioning block provided on the lower-step table surface of the positioning platform and concavely cooperating with the second positioning hole, the top end of the positioning boss gradually decreases to form a guide cone surface for guiding the first positioning hole, the step surface of the lower step and the upper step in the positioning platform are a connecting surface, a positioning area is formed between the step surface of the lower step in the positioning platform and the connecting surface, and the step surface of the upper step in the positioning platform forms a guide surface for the ear needle guide block to slide.

[0011] Specifically, a mounting notch communicating with the positioning area is provided at a corresponding position in the middle of the positioning area on the upper step surface of the positioning platform to facilitate automatic loading by the robot.

[0012] Preferably, a first triggering member for triggering the driving part is installed on the third fixing frame or the ear needle guide block, and a second triggering member for triggering the driving part is provided on the second fixing frame or the watchband positioning platform.

[0013] Specifically, the first triggering member is a first roller rotatably mounted on the third fixing frame or the ear needle guide block, and the second triggering member is a pull block fixedly mounted on the second fixing frame or the watchband positioning platform.

[0014] Preferably, the ear needle guide block is provided with a guide hole for insertion and alignment.

[0015] Preferably, a stop block is provided on the first fixed frame, and the stop block is slidably installed on the first fixed frame in the vertical direction and corresponds to a waiting position. A stop elastic member provides an elastic force to the stop block extending out from the first fixed frame, so that the stop block blocks the second fixed frame on the sliding path sliding toward the pre-assembly position, so that the second fixed frame is positioned at the waiting position, and the waiting position is located between the pre-assembly position and the pre-loading position and has a second distance from the pre-assembly position.

[0016] Preferably, the watchband positioning assembly also includes a watchband guide assembly, the watchband guide assembly includes a watchband guide block and a fifth elastic member, the watchband guide block is slidably installed on the side of the second fixing frame adjacent to the assembly position along the front-to-back direction, the fifth elastic member provides an elastic force for the watchband guide block to pop up toward the assembly position, so that the watchband guide block has a first distance relative to the watchband positioning platform in the initial state, and the watchband guide block is provided with a guide groove for guiding the watch head of the watchband along the front-to-back direction; the first fixing frame is provided with a contact platform that contacts the watchband guide block, and when the second fixing frame is moved to the front position of the assembly, the watchband guide block retracts into the second fixing frame under the contact pressure of the contact platform; the first distance is greater than or equal to the length of the watch head in the watchband.

[0017] Preferably, the watch band positioning platform includes a watch band supporting platform, a pressure block assembly, and a clamping block assembly, the pressure block assembly including a pressure block movably mounted on the second fixed frame and capable of pressing the watch band supporting platform, a third elastic member providing a downward pressure elastic force to the pressure block, and a third trigger member, the pressure block can be pressed onto the watch band supporting platform to press the watch band on the watch band supporting platform, and operating the third trigger member can drive the pressure block away from the watch band supporting platform to release the watch band on the watch band supporting platform; the clamping block assembly includes two clamping blocks movably mounted on the second fixed frame and located on the left and right sides of the watch band supporting platform, a fourth elastic member providing a relative contraction elastic force to the two clamping blocks, and a fourth trigger member, the two clamping blocks can be telescopic relative to the watch band supporting platform to perform left-right positioning of the watch band on the watch band supporting platform, and operating the fourth trigger member can drive the two clamping blocks to move relatively away from each other to release the watch band on the watch band supporting platform.

[0018] The present invention also discloses a watchband assembly device, including a watchband assembly jig, an ear needle pressing mechanism, a driving mechanism and a control mechanism. The watchband assembly jig is as described above. The ear needle pressing mechanism presses the ear needle in the ear needle mounting hole into the watch lug and the watchband; the driving mechanism controls the watchband positioning platform to move between the front loading position and the front assembly position, and controls the ear needle guide block to move between the avoidance position and directly above the assembly position. The control mechanism is respectively connected to the ear needle pressing mechanism and the driving mechanism, and controls the driving mechanism to move the watchband positioning platform to the watchband loading position, so that the watchband is positioned and installed on the watchband positioning platform; controls the driving mechanism to move The ear needle guide block is moved to the avoidance position, waiting for the watch lug to be positioned and installed on the watch lug fixing seat; after the watch strap is positioned and installed on the watch strap positioning platform and the watch lug is positioned and installed on the watch lug fixing seat, the driving mechanism is controlled to move the watch strap positioning platform from the front loading position to the front assembly position, so that the watch strap head is inserted into the watch lug; the driving mechanism is controlled to move the ear needle guide block above the assembly position, waiting for the ear needle to be positioned and installed in the ear needle mounting hole. After the ear needle is positioned and installed in the ear needle mounting hole and the watch strap head is inserted into the watch lug, the ear needle pressing mechanism is controlled to press the ear needle in the ear needle mounting hole into the watch lug. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the watch strap assembly jig of the present invention from one angle, wherein the ear needle guide block and the watch strap positioning platform are located in the front position of assembly, the clamping block assembly is in a clamped state, and the pressing block assembly is in a pressed state.

[0020] Figure 2 This is a structural diagram of the watch strap assembly jig of the present invention from another angle, wherein the ear needle guide block is in the avoidance position, the watch strap positioning platform is in the pre-assembly position, and the clamping block assembly is in the clamping state.

[0021] Figure 3 It is an exploded view of the watchband assembly jig of the present invention.

[0022] Figure 4 This is a structural diagram of the watch strap assembly jig of the present invention from another angle.

[0023] Figure 5 This is a structural diagram of the watchband assembly jig of the present invention at an angle, wherein the ear needle guide block is located above the assembly position, the watchband positioning platform is located in the waiting position, and the clamping block assembly is in a clamped state.

[0024] Figure 6 It is a structural diagram of the watchband positioning assembly of the present invention.

[0025] Figure 7 yes Figure 6In the enlarged view of part a, the watch strap positioning platform is in the waiting position, and the watch strap guide block is in the extended state relative to the second fixing frame.

[0026] Figure 8 is different from Figure 7 In another state diagram, the watch strap positioning platform is located in the pre-assembly position, and the watch strap guide block is in a retracted state relative to the second fixing frame.

[0027] Figure 9 It is a structural diagram of the watch head installed on the watch lug fixing seat of the present invention.

[0028] Figure 10 It is a structural diagram of the second driving unit.

[0029] Figure 11 This is a structural diagram of the first drive unit.

[0030] Figure 12 This is a structural diagram of the fourth drive unit. DETAILED DESCRIPTION

[0031] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0032] refer to Figures 1 to 9 The present invention discloses a watch strap assembly jig 100, which is used to complete the assembly of woven or flexible watch straps such as nylon watch straps, and includes a watch lug positioning component, a watch strap positioning component, and an ear needle positioning component. The watch lug positioning component is fixed on a first fixing frame 11, and includes a watch lug fixing seat 12 located at an assembly position and positioning the watch lug; the watch strap positioning component is installed on a second fixing frame 21, and includes a watch strap positioning platform (22, 23, 24) for positioning the watch strap; the ear needle positioning component includes an ear needle guide block 32 installed on a third fixing frame 31, and the ear needle guide block 32 is fixed on the third fixing frame 31. The guide block 32 has ear needle mounting holes 321 corresponding one-to-one with the ear holes 2011 on the watchband. The second fixing frame 21 is slidably connected to the first fixing frame 11 along the front-to-back direction, and enables the watchband positioning platform to move between the pre-loading position and the pre-assembly position, thereby allowing the watchband head on the watchband positioning platform to move between the watchband loading position and the assembly position. The third fixing frame 31 is slidably connected to the second fixing frame 21 along the front-to-back direction, and enables the ear needle guide block 32 to move between the avoidance position and directly above the assembly position. The watchband loading position and the avoidance position are located on either side of the assembly position along the front-to-back direction.

[0033] When the watch strap is positioned on the watch strap positioning platform, the watch strap head protrudes from the front side of the watch strap positioning platform.

[0034] refer to Figure 3 and Figure 4The watch strap assembly jig further includes a first elastic member 41 and a second elastic member 42. The first elastic member 41 provides an elastic force for the second fixing frame 21 to move toward the front assembly position; the second elastic member 42 provides an elastic force for the third fixing frame 31 to move above the assembly position.

[0035] refer to Figure 9 The watch ear 202 includes a clamping body that can wrap the watch head 201 of the watch strap 200, a first positioning hole and a second positioning hole that pass through the clamping body in the vertical direction, and the watch ear fixing seat 12 includes a stepped positioning platform 120, a positioning boss 121 provided on the lower-step table surface of the positioning platform 120 and matched with the first positioning hole, and a positioning boss 122 provided on the lower-step table surface of the positioning platform 120 and matched with the second positioning hole. The top of the positioning boss 121 gradually decreases to form a guiding cone surface for guiding the first positioning hole. The step surface of the lower step and the upper step in the positioning platform 120 is a connecting surface, and a positioning area is formed between the step surface of the lower step in the positioning platform 120 and the connecting surface. The step surface of the upper step in the positioning platform 120 forms a guide surface for the ear needle guide block 32 to slide. The underside of the ear pin guide block 32 forms a blocking surface for vertically positioning the watch lug 202. When the ear pin guide block 32 is moved above the assembly position, this blocking surface and the lower stepped surface of the positioning platform 120 clamp the watch lug 202 within. Specifically, the upper stepped surface of the positioning platform 120 is provided with a mounting notch 123 at a corresponding position in the middle of the positioning area, which communicates with the positioning area and facilitates automatic loading by a robot.

[0036] refer to Figure 3 The ear needle guide block 32 is provided with a guide hole 211 for insertion and alignment.

[0037] refer to Figures 1 to 5 The third fixing frame 31 is provided with a first triggering member for triggering the driving part. Of course, the first triggering member can also be formed or installed on the ear needle guide block 32. In this embodiment, the first triggering member is a first roller 34 rotatably mounted on the third fixing frame 31. Of course, the first triggering member can also be a slider or an abutment block, and the driving part is a driving structure that cooperates with it and can be freely separated (the driving part is fixedly connected to the first triggering member and can be freely separated from the driving part when the watchband assembly jig 100 moves). Figure 10, discloses a second driving portion 73 that drives the first trigger member, the second driving portion 73 includes a driving source 731 and a driving member 732, the driving member 732 is a roller track for the first roller 34 to roll, the roller track has a first driving surface extending in the vertical direction, a second driving surface extending in the vertical direction, and an arc-shaped guide surface connected between the first driving surface and the second driving surface, the first driving surface and the second driving surface having a spacing along the front-to-back direction, and the driving source 731 drives the driving member 732 to move up and down, so that the first roller 34 rolls along the roller track, and when the driving member 732 is lifted to the first height, the first roller 34 cooperates with the first driving surface, and when the driving member 732 is lifted to the second height, the first roller 34 cooperates with the second driving surface, so that the first roller 34 rolls in the front-to-back direction as the driving member 732 is lifted and lowered, thereby driving the third fixing frame 31 to slide between the assembly front position and the avoidance front position in the front-to-back direction.

[0038] refer to Figures 1 to 6 , a second triggering member for triggering the driving part is provided on the second fixing frame 21. The second triggering member is a pull block 241 fixedly mounted on the second fixing frame 21. Of course, the second triggering member can also be a triggering member mounted on the strap positioning platform. Of course, the second triggering member can also be a snap-on block, and the driving part is a driving structure that cooperates with it and can be freely separated (the driving part is fixedly connected to the second triggering member, and can be freely separated from the driving part when the strap assembly jig 100 moves). In this embodiment, when the strap assembly jig 100 moves relative to the left and right directions, the driving part can freely separate from the pull block 241. Reference Figure 11 , discloses a first driving part 72 that drives the second trigger member, the first driving part 72 includes a driving source 721 and a driving member 722 connected to the driving source 721, the driving member 722 is a pulling member that cooperates with the pulling block 241, the driving member 722 and the pulling block 241 are hooked together in the front-to-back direction, and can be moved along the front-to-back direction under the drive of the driving source 721 to pull the second fixing frame 21 away from the assembly position, when the driving source 721 drives the pulling member 722 to move toward the assembly position along the front-to-back direction, the second fixing frame 21 is then driven by the first elastic member 41 to approach the assembly position, and the first driving part 72 thereby controls the second fixing frame 21 to move between the pre-assembly position and the pre-loading position.

[0039] refer to Figures 1 to 3 as well as Figure 5The first fixing frame 11 is provided with a stop block 51, which is vertically slidably mounted on the first fixing frame 11 and corresponds to a waiting position. A stop elastic member 52 provides elastic force to the stop block 51 extending from the first fixing frame 11, so that the stop block 51 blocks the second fixing frame 21 from sliding toward the pre-assembly position. The stop block 51 and the stop elastic member 52 constitute a blocking assembly 50. The blocking assembly 50 can position the second fixing frame 21 in the waiting position before the lug 202 is mounted on the lug fixing seat 12. The waiting position is located between the pre-assembly position and the pre-loading position and is spaced a second distance from the pre-assembly position. A third driving unit is used to drive the stop block 51 to move up and down in the vertical direction. After the lug 202 is installed on the lug fixing seat 12, the third driving unit pushes the stop block 51 so that the stop block 51 moves down in the vertical direction to the bottom of the second fixing frame 21. The second fixing frame 21 then slides to the pre-assembly position driven by the first elastic member 41.

[0040] refer to Figure 2 and Figure 5 ,as well as Figures 6 to 8 The strap assembly jig 100 also includes a strap guide component, and the strap guide component includes a strap guide block 61 and a fifth elastic member 62. The strap guide block 61 is slidably installed on the side of the second fixed frame 21 adjacent to the assembly position along the front-to-back direction. The fifth elastic member 62 provides an elastic force for the strap guide block 61 to pop out toward the assembly position, so that the strap guide block 61 has a spacing relative to the strap positioning platform in the initial state. The strap guide block 61 is provided with a guide groove 611 for guiding the watch head 201 of the strap 200 along the front-to-back direction. The notch of the guide groove 611 gradually shrinks from the upper material position of the strap to the assembly position to form a guide structure. The first fixed frame 11 has a contact platform 124 (such as Figure 9 As shown), and the second fixing frame 21 is moved to the front position with the assembly, the strap guide block 61 is retracted into the second fixing frame 21 (as shown) under the contact pressure of the abutment platform 124. Figure 8 ); the first spacing is greater than or equal to the length of the watch head 201 in the watch strap 200, so that when the watch strap guide block 61 is retracted into the second fixing frame 21, the watch head 201 can fully extend relative to the guide groove 611 of the watch strap guide block 61 as the second fixing frame 21 moves, thereby extending into the watch lug 202. The second spacing is greater than or equal to the sum of the first spacing and the thickness of the watch strap guide block 61. Furthermore, when the second fixing frame 21 is in the waiting position, the watch strap guide block 61 is in an extended state relative to the second fixing frame 21.

[0041] refer to Figure 6The watchband positioning platform includes a watchband bearing platform 24, a pressing block assembly 23, and a clamping block assembly 22.

[0042] refer to Figure 6 The pressure block assembly 23 includes a pressure block 231 movably mounted on the second fixing frame 21 and capable of pressing on the strap support platform 24, a third elastic member 233 providing a downward pressure force to the pressure block 231, and a third trigger member 234. The pressure block 231 can be pressed onto the strap support platform 24 to press the strap 200 on the strap support platform 24. Operating the third trigger member 234 can drive the pressure block away from the strap support platform 24 to release the strap 200 on the strap support platform 24. The front end of the pressure block 231 is rotatably mounted on the second fixing frame 21 about a first axis. The pressure block assembly also includes a drive rod 232. The front end of the drive rod 232 is rotatably connected to the middle end of the pressure block 231 about a second axis via a linkage. The first axis is parallel to the second axis. The end of the pressure block 231 is pressed against the strap support 24. The first end of the linkage is rotatably connected to the middle end of the pressure block 231 about the second axis, and the second end is rotatably connected to the drive rod 232 about a third axis. The second axis is parallel to the third axis. The third trigger member 234 is an abutting end formed at the end of the drive rod 23.

[0043] refer to Figure 6 The clamping block assembly 22 includes two clamping blocks 221 movably mounted on the second fixing frame 21 and located on the left and right sides of the strap support platform 24, a fourth elastic member 223 that provides relative elastic force for the two clamping blocks 221 to retract and retract, and a fourth trigger member 224. The two clamping blocks 221 can extend and retract relative to the strap support platform 24 to position the strap 200 on the strap support platform 24 in the left-right direction. Operating the fourth trigger member can drive the two clamping blocks 221 to move relatively apart to release the strap 200 from the strap support platform 24. The clamping block assembly 22 also includes a driving rod 222 fixedly connected to the clamping block 221. The clamping block 221 is slidably connected to the second fixing frame 21 in the left-right direction. The end of the driving rod 222 forms a fourth trigger member 224, which is a roller rotatably mounted on the end of the driving rod 222.

[0044] Among them, two guide plates 13 are also installed on the first fixing frame 11 to guide the strap 201 in the left and right directions. A guide channel is formed between the two guide plates 13. The guide channel is located at the end of the strap positioning platform 24, and the pressure block assembly 23 is pressed on the front end of the strap positioning platform 24.

[0045] refer to Figure 12The strap positioning platform is driven by the fourth drive unit 71. The first drive unit 71 includes a drive source 711, a third drive member 712 that drives the third trigger member 234, and a fourth drive member 713 that drives the fourth trigger member 224. The end of the third drive member 712 is a contact platform that contacts the third trigger member 234. The drive source 711 drives the third drive member 712 to move up and down, causing the third trigger member 234 to move up and down, and the pressure block 231 to flip open and press on the strap support platform 24. The end of the fourth drive member 713 is formed with an inclined drive surface. The drive source 711 drives the fourth drive member 713 to move up and down, causing the roller to rotate relative to the inclined drive surface and move in the left and right directions, thereby causing the two clamping blocks 221 to retract relative to each other. Of course, the fourth trigger member 224 can also be a slider mounted on the end of the drive rod 222. In this case, the slider slides relative to the inclined drive surface of the fourth drive member 713.

[0046] In this embodiment, the third driving member 712 and the fourth driving member 713 act synchronously. Of course, the third driving member 712 and the fourth driving member 713 can also act asynchronously. During positioning, the fourth driving member 713 is first used to control the clamping block 22 to clamp the strap, and then the third driving member 712 is used to control the pressing block 23 to press the strap.

[0047] In this embodiment, a corresponding stop assembly is provided between the first fixing frame 11 and the second fixing frame 21 to limit the relative movement between the second fixing frame 21 and the first fixing frame 11. The second fixing frame 21 can only move relative to the first fixing frame 11 between the pre-loading position and the pre-assembly position. The pre-loading position and the pre-assembly position are the two extreme positions of the sliding travel of the second fixing frame 21 relative to the first fixing frame 11. When the second fixing frame 21 is in the pre-loading position and the watchband is placed on the watchband positioning platform, the watchband head is located at the watchband loading position. When the second fixing frame 21 and the watchband positioning platform are in the pre-assembly position, the watchband head is located at the assembly position. In other words, the pre-loading position of the second fixing frame 21 corresponds to the watchband loading position, and the pre-assembly position corresponds to the assembly position.

[0048] In this embodiment, the third fixing frame 31 and the first fixing frame 11 also have corresponding stop assemblies, so that the avoidance position and the assembly position are the two limit positions for the third fixing frame 31 to slide relative to the first fixing frame 11.

[0049] The present invention also discloses a watchband assembly device, including a watchband assembly jig 100, an ear needle pressing mechanism, a driving mechanism and a control mechanism. The watchband assembly jig 100 is as described above. The ear needle pressing mechanism presses the ear needle in the ear needle mounting hole 321 into the watch lug and the watchband; the driving mechanism controls the watchband positioning platform to move between the front loading position and the front assembly position, and controls the ear needle guide block 32 to move between the avoidance position and directly above the assembly position. The control mechanism is respectively connected to the ear needle pressing mechanism and the driving mechanism, and controls the driving mechanism to move the watchband positioning platform to the watchband loading position, so that the watchband is positioned and installed on the watchband positioning platform; controls the driving mechanism to move the ear The needle guide block 32 moves to the avoidance position, waiting for the watch lug to be positioned and installed on the watch lug fixing seat 12; after the watch strap is positioned and installed on the watch strap positioning platform and the watch lug is positioned and installed on the watch lug fixing seat 12, the driving mechanism is controlled to move the watch strap positioning platform from the watch strap loading position to the assembly position, so that the watch strap head is inserted into the watch lug; the driving mechanism is controlled to move the ear needle guide block 32 to above the assembly position, waiting for the ear needle to be positioned and installed in the ear needle mounting hole 321. After the ear needle is positioned and installed in the ear needle mounting hole 321 and the watch strap head is inserted into the watch lug, the ear needle pressing mechanism is controlled to press the ear needle in the ear needle mounting hole 321 into the watch lug.

[0050] The driving mechanism includes a first driving unit 72, a second driving unit 73 and a third driving unit. The control mechanism is also connected to the fourth driving unit 71 of the strap positioning platform to control the strap positioning platform to position the strap 200.

[0051] Preferably, the watchband assembly device further includes a watchband loading mechanism, a lug loading mechanism, and an ear pin loading mechanism. The watchband loading mechanism is used to load the watchband onto the watchband loading position onto the watchband support platform 24, the lug loading mechanism is used to load the watch lug onto the lug fixing seat 12 in the front loading position, and the ear pin loading mechanism is used to load the ear pin into the ear pin mounting hole 321 in the assembly position. A control mechanism is also connected to the watchband loading mechanism, the lug loading mechanism, and the ear pin loading mechanism to control their operation. A guide head is mounted on the loading head of the ear pin loading mechanism, which cooperates with the guide hole 211. The guide hole 211 cooperates to guide the guide head, so that the ear pin loading mechanism can accurately insert the ear pin into the ear pin mounting hole 321.

[0052] Preferably, the watchband assembly device further includes a conveying mechanism, which sequentially conveys the watchband assembly jig 100 to a watchband loading station, a watch lug loading station, an ear pin loading station, and an ear pin punching station.

[0053] refer to Figures 1 to 12, describing the working process of the control mechanism controlling each part in the watchband assembly device of the present invention:

[0054] In the initial state, the watchband assembly jig 100 is located at the watchband loading station, the first elastic member 41 and the second elastic member 42 are both in the initial state, and the ear needle guide block of the ear needle positioning assembly is located above the assembly position (such as Figure 1 As shown), the strap positioning platform is located in the pre-assembly position. Of course, in the initial state, the strap positioning platform can also be located in the waiting position (as shown). Figure 5 shown).

[0055] The control mechanism controls the first driving part 72 to move the second fixing frame 21 to the strap loading position;

[0056] Control the fourth driving part 71 to move (control the third driving member 712 and the fourth driving member 713 to rise) so that the pressing block 231 of the pressing block assembly 23 is away from the strap support platform 24, and the two clamping blocks 221 of the clamping block assembly 22 are relatively away from each other to make way for the installation area of ​​the strap support platform 24.

[0057] The strap loading mechanism is controlled to operate so that the manipulator of the strap loading mechanism places the strap 200 on the strap supporting platform 24 at the strap loading position.

[0058] The fourth driving portion 71 is controlled to operate (the third driving member 712 and the fourth driving member 713 are controlled to descend), and the two clamping blocks 221 of the clamping block assembly 22 are relatively close to each other under the action of the fourth elastic member 223 to clamp the watch strap on the watch strap supporting platform 24, so that the pressing block 231 of the pressing block assembly 23 is close to the watch strap supporting platform 24 under the action of the third elastic member 233 to press the watch strap on the watch strap supporting platform 24.

[0059] The first driving part 72 is controlled to gradually release the pull block 241, so that the second fixing frame 21 gradually moves toward the assembly position under the action of the first elastic member 41 and is stopped by the stop block 51 in the waiting position (such as Figure 5 At this time, the position of the watch head 201 of the watch strap 200 relative to the watch strap support 24 and the watch strap guide block 61 is as shown in FIG. Figure 7 As shown, at this time, the watch head 201 is located in the guide groove 611 of the watch strap.

[0060] The conveying mechanism is controlled to move the watchband assembly jig 100 to the watch lug loading station.

[0061] Control the second driving part 73 to move to drive the third fixing frame 31 to move to the avoidance position (such as Figure 2 shown).

[0062] The lug loading mechanism is controlled to operate, and the lug loading mechanism loads the lug 202 onto the lug fixing seat 12 at the assembly position.

[0063] Control the second driving part 73 to reset, and the third fixing frame 31 moves to the upper side of the assembly position under the action of the second elastic member 42, and the lug 202 is clamped between the lug guide block 32 and the lug fixing seat 12 (as shown in FIG. Figure 5 shown).

[0064] The third driving unit is controlled to operate to compress the stop block 51 to the low position, and the strap positioning platform on the second fixing frame 21 is then moved to the front assembly position under the action of the first elastic member 41, and the head 201 of the strap 200 is aligned and inserted into the lug 202 (such as Figure 1 As shown). Among them, Figure 8 As shown, as the second fixing frame 21 moves forward, the strap support platform 24 and the strap guide block 61 push the strap 200 forward until the lug fixing seat 12 blocks the strap guide block 61, and the strap support platform 24 continues to move, causing the strap guide block 61 to retract relative to the second fixing frame 21. The strap support platform 24 then extends the strap 200 forward relative to the strap guide block 61, and the head of the strap 200 then passes through the guide groove 611 of the strap and extends into the lug 202 at the assembly position.

[0065] The conveying mechanism is controlled to move the watchband assembly jig 100 to the ear needle loading station.

[0066] The ear needle loading mechanism is controlled to operate so that the ear needle loading mechanism loads the ear needles into the ear needle mounting holes 321 of the ear needle guide block 32 .

[0067] The conveying mechanism is controlled to move the watchband assembly jig 100 to the ear needle punching station.

[0068] The ear needle pressing mechanism is controlled to press the ear needle into the ear hole 2021 of the watch ear 202 and the ear hole 2011 of the watch head 201 in the watch strap 200 in sequence, thereby completing the assembly of the watch strap.

[0069] The up and down, horizontal, left and right, and front and back of the present invention are relative position relationships, rather than absolute position relationships.

[0070] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims

1. A watch strap assembly jig, characterized by: include: A lug positioning assembly is fixed to the first fixing frame and includes a lug fixing seat located at the assembly position and positioning the lug; A watch strap positioning assembly is mounted on the second fixing frame and includes a watch strap positioning platform for positioning the watch strap; The ear needle positioning assembly includes an ear needle guide block mounted on the third fixing frame, wherein the ear needle guide block has ear needle mounting holes corresponding to the ear holes on the watchband; wherein, The second fixing frame is slidably connected to the first fixing frame in the front-to-back direction and enables the watch strap positioning platform to move between the front loading position and the front assembly position, so that the watch strap head on the watch strap positioning platform moves between the watch strap loading position and the assembly position. The third fixing frame is slidably connected to the second fixing frame in the front-to-back direction and enables the ear needle guide block to move between the avoidance position and directly above the assembly position. The third fixing frame or the ear needle guide block is provided with a first triggering member for triggering the driving part, and the second fixing frame or the watchband positioning seat is provided with a second triggering member for triggering the driving part.

2. The watchband assembly jig according to claim 1, wherein: The watch lug includes a clamping body that can wrap the watch head of the watch strap, a first positioning hole and a second positioning hole that penetrates the clamping body in the vertical direction, the watch lug fixing seat includes a stepped positioning platform, a positioning boss provided on the lower-step table surface of the positioning platform and matched with the first positioning hole, and a positioning block provided on the lower-step table surface of the positioning platform and matched with the second positioning hole, the top end of the positioning boss gradually decreases to form a guiding cone surface for guiding the first positioning hole, the step surface of the lower step and the upper step in the positioning platform is a connecting surface, and a positioning area is formed between the step surface of the lower step in the positioning platform and the connecting surface.

3. The watchband assembly jig according to claim 1, wherein: Also includes: a first elastic member, providing an elastic force for the second fixing frame to move toward the pre-assembly position; a second elastic member, providing elastic force for the third fixing frame to move toward the assembly position; The strap loading position and the avoidance position are respectively located at the front and rear sides of the assembly position.

4. The watchband assembly jig according to claim 1, wherein: The first triggering member is a first roller rotatably mounted on the third fixing frame or the ear needle guide block, and the second triggering member is a pull block fixedly mounted on the second fixing frame or the watchband positioning seat.

5. The watchband assembly jig according to claim 1, wherein: The ear needle guide block is provided with a guide hole for insertion and alignment.

6. The watchband assembly jig according to claim 1, wherein: A stop block is provided on the first fixed frame, and the stop block is slidably installed on the first fixed frame in the vertical direction and corresponds to a waiting position. A stop elastic member provides elastic force to the stop block extending from the first fixed frame so that the stop block blocks the second fixed frame on the sliding path sliding toward the pre-assembly position. The waiting position is located between the pre-assembly position and the pre-loading position and has a second distance from the pre-assembly position.

7. The watchband assembly jig according to claim 1, wherein: The strap positioning assembly also includes a strap guide assembly, which includes a strap guide block and a fifth elastic member, wherein the strap guide block is slidably installed on the side of the second fixing frame adjacent to the assembly position along the front-to-back direction, and the fifth elastic member provides an elastic force for the strap guide block to pop out toward the assembly position, so that the strap guide block has a first distance relative to the strap positioning platform in the initial state, and the strap guide block is provided with a guide groove for guiding the watch head of the strap along the front-to-back direction; the first fixing frame is provided with a contact platform that contacts the strap guide block, and the strap positioning platform of the second fixing frame is moved to the assembly front position, and the strap guide block retracts into the second fixing frame under the contact pressure of the contact platform; the first distance is greater than or equal to the length of the watch head in the strap.

8. The watchband assembly jig according to claim 1, wherein: The strap positioning platform includes a strap supporting platform, a pressure block assembly, and a clamping block assembly. The pressure block assembly includes a pressure block movably mounted on the second fixed frame and capable of pressing the strap supporting platform, a third elastic member that provides a downward pressure elastic force to the pressure block, and a third trigger member. The pressure block can be pressed onto the strap supporting platform to press the strap on the strap supporting platform, and operating the third trigger member can drive the pressure block away from the strap supporting platform to release the strap on the strap supporting platform; the clamping block assembly includes two clamping blocks movably mounted on the second fixed frame and located on the left and right sides of the strap supporting platform, a fourth elastic member that provides a relative contraction elastic force to the two clamping blocks, and a fourth trigger member. The two clamping blocks can be telescopic relative to the strap supporting platform to perform left-right positioning of the strap on the strap supporting platform. Operating the fourth trigger member can drive the two clamping blocks to move relatively away from each other to release the strap on the strap supporting platform.

9. A watchband assembly device, characterized in that: The present invention comprises a watch strap assembly jig, an ear needle pressing mechanism, a driving mechanism and a control mechanism, wherein the watch strap assembly jig is as described in any one of claims 1 to 8, wherein the ear needle pressing mechanism presses the ear needle in the ear needle mounting hole into the watch lug and the watch strap; the driving mechanism controls the watch strap positioning platform to move between the front loading position and the front assembly position, and controls the ear needle guide block to move between the avoidance position and directly above the assembly position; the control mechanism is respectively connected to the ear needle pressing mechanism and the driving mechanism, controls the driving mechanism to move the watch strap positioning platform to the watch strap loading position, so that the watch strap is positioned and installed on the watch strap positioning platform; controls the driving mechanism to move the ear The needle guide block moves to the avoidance position, waiting for the watch lug to be positioned and installed on the watch lug fixing seat; after the watch strap is positioned and installed on the watch strap positioning platform and the watch lug is positioned and installed on the watch lug fixing seat, the driving mechanism is controlled to move the watch strap positioning platform from the front loading position to the front assembly position, so that the watch strap head is inserted into the watch lug; the driving mechanism is controlled to move the ear needle guide block to above the assembly position, waiting for the ear needle to be positioned and installed in the ear needle mounting hole. After the ear needle is positioned and installed in the ear needle mounting hole and the watch strap head is inserted into the watch lug, the ear needle pressing mechanism is controlled to press the ear needle in the ear needle mounting hole into the watch lug.

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