Method for clamping watchcase roller before polishing

Abstract

The invention belongs to the technical field of watchcase polishing and clamping treatment, and particularly discloses a watchcase roller polishing front clamping method which comprises the following steps that 1, a plurality of watchcases are clamped on a plurality of clamps in a one-to-one correspondence mode through a clamping assembly; 2, the clamping assembly is moved to a cover disassembling device, the cover disassembling device is used for disassembling the clamping assembly, and all the clamps are exposed; 3, the detached part of the clamping assembly is taken down, the other part of the clamping assembly and the clamp are taken down together and reversely strung on the multiple hanging rods of the serial connection plate, and the other part of the clamping assembly is taken out; step 4, repeating the step 1 to the step 3, so that all the hanging rods of the tandem connection plate are fully strung with the clamps clamped with the meter cases; 5, the two hanging rods fully stringed with the clamps are taken down and installed between the two positioning plates; and 6, the clamp between the two positioning plates is pressed through a pressing device to form the hanging tool. According to the invention, the watchcase clamping processing production process can be simplified, and the clamping production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of watch case polishing and clamping processing, and in particular relates to a watch case roller polishing pre-clamping method. Background Art

[0002] In the metal processing and surface treatment industry, drum polishing technology is widely adopted as a key process to significantly improve the smoothness of the workpiece surface and effectively eliminate surface defects. Especially for small and precise parts such as watch cases, case polishing is an indispensable key step. Since watch case polishing usually only requires polishing of the outer wall, while the inner wall does not need to be polished, a single watch case needs to be clamped on a single fixture before polishing to cover the inner wall of the watch case so that the outer wall of the watch case can be polished efficiently and accurately. This step ensures that the inner wall of the watch case will not be accidentally damaged during the polishing process, while ensuring the uniformity and consistency of the polishing effect. In order to polish the watch case in batches, multiple fixtures will be hung on the hanging rod before polishing, and the two ends are fastened with screws to achieve connection.

[0003] The existing drum polishing clamping process generally uses a simple fixture to clamp a single watch case on the fixture, then string the fixtures clamped with the watch case on the hanging rod one by one, and finally fix the two ends of the hanging rod with screws. Then, a string of fixtures clamped with watch cases can be put into the drum polishing machine for batch polishing. The entire clamping process is cumbersome, not only time-consuming and labor-intensive, but also greatly reduces the clamping production efficiency.

[0004] Therefore, the inventor is committed to designing a clamping processing production line to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a clamping method for watch case before roller polishing, which can simplify the watch case clamping process and improve the clamping production efficiency.

[0006] In order to achieve the above object, a technical solution adopted by the present invention is:

[0007] A method for clamping before roller polishing of a watch case, comprising the following steps:

[0008] Step 1: Clamp multiple watch cases onto multiple fixtures one by one using a clamping assembly;

[0009] Step 2, moving the clamping assembly holding the multiple watch cases onto the cover removal device, and using the cover removal device to remove a portion of the clamping assembly to expose all the clamps;

[0010] Step 3, remove the disassembled part of the clamping assembly, remove the other part of the clamping assembly and the clamp with multiple watch cases clamped together, and reversely string them on multiple hanging rods of the serial connection plate, and take out the other part of the clamping assembly;

[0011] Step 4: Repeat steps 1 to 3 to make all the hanging rods of the connecting plate be strung with the clamps with the watch cases;

[0012] Step 5: Remove the two hanging rods that are full of clamps and install them between the two positioning plates;

[0013] Step 6: Use a clamping device to press the clamp between the two positioning plates to form a hanger.

[0014] As an improvement of the clamping method before roller polishing of the watch case of the present invention, the clamping assembly includes a cover plate, a limit plate and a base, the cover plate and the limit plate are stacked on the base in sequence from top to bottom, the top of the base is clamped with multiple clamp seats, the bottom of the cover plate is clamped with multiple clamp covers, all the clamp covers are coaxially magnetically connected with all the clamp seats in a one-to-one correspondence and form the clamps accordingly, and the limit plate is sleeved outside all the clamps to form multiple cavities accordingly.

[0015] As an improvement of the clamping method before roller polishing of the watch case of the present invention, a limit platform is provided at the bottom of the clamping cover, a limit groove is provided at the top of the clamping seat, the limit platform matches the limit groove, and the bottom of the limit platform is magnetically connected to the multiple lower magnets in the limit groove through multiple upper magnets.

[0016] As an improvement of the clamping method before roller polishing of the watch case of the present invention, the cover removal device is used to disassemble the cover plate and the limit plate. The cover removal device includes a body and a slide seat for limiting and carrying the clamping assembly. The slide seat is slidably connected to the body. A pressure plate with a lifting function is provided above the slide seat. A plurality of pressure columns are provided at the bottom of the pressure plate for pushing all the clamps and the base downward together.

[0017] As an improvement on the clamping method before roller polishing of the watch case of the present invention, a plurality of support columns are vertically arranged on the slide seat, all of the support columns pass through the base and jointly support the limit plate, all of the pressure columns movably pass through the limit plate and the cover plate and movably press against all of the clamps one by one.

[0018] As an improvement on the clamping method before roller polishing of the watch case of the present invention, the two positioning plates are respectively mounted on the upper and lower ends of all the hanging rods of the hanger, and the upper limit of each positioning plate is connected with a clamping plate. The two ends of the hanging rod of the hanger are respectively movably clamped with the clamping plates in a one-to-one correspondence, and each hanging rod of the hanger is mounted with an elastic sleeve for providing elastic support for all the clamps mounted on the corresponding hanging rod.

[0019] As an improvement of the clamping method before roller polishing of the watch case of the present invention, at least one pair of limit screws are fixed on the positioning plate, and at least one pair of limit side grooves are provided on the clamping plate. The same pair of the limit side grooves are located on two corresponding sides of the clamping plate, and the same pair of the limit screws are arranged in the same pair of the limit side grooves one by one.

[0020] As an improvement to the clamping method before roller polishing of the watch case of the present invention, both clamping plates are provided with clamping holes for lateral sliding of the two ends of the hanging rod of the hanger, and the two ends of the hanging rod of the hanger are respectively located in the clamping holes of the two clamping plates.

[0021] As an improvement to the clamping method before roller polishing of the watch case of the present invention, clamping platforms are respectively provided on the two corresponding inner walls of each clamping hole, and clamping grooves are respectively provided at both ends of the hanging rod of the hanger, and the clamping grooves are movably clamped with the clamping platforms.

[0022] As an improvement of the clamping method before roller polishing of the watch case of the present invention, the clamping device includes a machine base, a slide plate is slidably connected to the machine base, a carrying plate for carrying the hanger is movably supported on the slide plate, a clamping space for the slide plate to slide into is provided on one side of the machine base, and a clamping plate for pushing up the carrying plate is provided at the bottom of the clamping space.

[0023] Compared with the prior art, the method for clamping watch cases before roller polishing of the present invention utilizes a clamping assembly to clamp multiple watch cases one-to-one on multiple clamps, and then uses a cover removal device to disassemble a part of the clamping assembly to expose all the clamps, then remove the other part of the clamping assembly and all the clamps it carries, and connect all the exposed clamps one-to-one in series on multiple hanging rods, and finally use a clamping device to install the multiple hanging rods connected with the clamps between two positioning plates and press them to form hangers, which is convenient for roller polishing. The entire production line simplifies the production process of watch case clamping processing, and can clamp multiple watch cases quickly and non-destructively at the same time, thereby improving the watch case clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the clamping method before roller polishing of a watch case of the present invention;

[0025] Figure 2 is a three-dimensional exploded enlarged view of the clamping assembly of the present invention;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 is a three-dimensional exploded enlarged view of the clamping assembly of the present invention from another perspective;

[0028] Figure 5 Figure 4 The enlarged view of point B in the middle;

[0029] Figure 6 is an enlarged cross-sectional view of the clamping assembly of the present invention;

[0030] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0031] Figure 8 is an enlarged cross-sectional view of the clamp of the present invention;

[0032] Fig. 9 is a three-dimensional enlarged view of the cover removal device of the present invention;

[0033] Fig.10 is an enlarged cross-sectional view of the cover removal device of the present invention;

[0034] Fig.11 yes Fig.10 The enlarged view of point D in the middle;

[0035] Fig.12 is another enlarged cross-sectional view of the cover removal device of the present invention;

[0036] Fig.13 yes Fig.12 Enlarged view of point E in the middle;

[0037] Fig.14 is a three-dimensional enlarged view of the clamping device of the present invention;

[0038] Fig.15 is an enlarged cross-sectional view of the clamping device of the present invention;

[0039] Fig.16 yes Fig.15 The enlarged view of F in the middle;

[0040] Fig.17 is a three-dimensional enlarged view of a single hanger of the present invention;

[0041] Fig.18 is another enlarged perspective view of a single hanger of the present invention;

[0042] Fig.19 is an enlarged cross-sectional view of a single hanger of the present invention;

[0043] Fig. 20 yes Fig.19 Enlarged view of point G in the middle.

[0044] Illustration Description:

[0045] 1. Clamping assembly; 11. Base; 111. Lower supporting plate; 112. Bottom plate; 113. Bottom hole; 114. Lower plug hole; 12. Limit plate; 121. Upper plate; 122. Lower plate; 13. Cover plate; 131. Top plate; 132. Upper supporting plate; 133. Upper plug hole; 14. Clamp; 141. Clamp cover; 1411. Clamp body; 1412. Upper positioning block; 1413. Upper clamping table; 1414, limit table; 142, clamping seat; 1421, lower positioning block; 1422, clamping block; 1423, lower clamping table; 1424, limit slot; 143, lower hole; 144, upper hole; 145, positioning slot; 146, lower magnet; 147, upper magnet; 15, lower clamping slot; 16, upper clamping slot; 2, cover removal device; 21, slide seat; 211, support column; 212, guide column; 22, Opening cylinder; 23, pressing plate; 231, pressing column; 24, machine body; 3, connecting plate; 4, clamping device; 41, machine base; 411, working panel; 412, track; 42, baffle; 421, clearance groove; 422, clamping space; 43, slide plate; 431, baffle bar; 44, bearing plate; 441, slot; 45, clamping cylinder; 451, clamping plate; 5, hanger; 51, lower positioning Plate; 511, lower limit screw; 52, upper positioning plate; 521, upper limit screw; 53, lower clamping plate; 531, lower limit side groove; 532, lower clamping hole; 5321, lower clamping platform; 54, upper clamping plate; 541, upper limit side groove; 542, upper clamping hole; 5421, upper clamping platform; 55, hanging rod; 551, lower clamping groove; 552, upper clamping groove; 56, elastic sleeve; 6, watch case. DETAILED DESCRIPTION

[0046] The following specifically describes the implementation modes of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only for reference and illustration and do not constitute a limitation on the scope of patent protection of the present invention.

[0047] Reference Figures 1 to 20 , a method for clamping before roller polishing of a watch case, comprising the following steps:

[0048] Step 1: Clamp a plurality of watch cases 6 onto a plurality of fixtures 14 one by one using a clamping assembly 1;

[0049] Step 2, move the clamping assembly 1 holding a plurality of watch cases 6 onto the cover removal device 2, and use the cover removal device 2 to remove a portion of the clamping assembly 1 (i.e., the cover plate 13 and the limit plate 12 of the clamping assembly 1) to expose all the clamps 14;

[0050] Step 3, remove the disassembled part of the clamping assembly 1 (i.e., the cover plate 13 and the limit plate 12 of the clamping assembly 1), remove the other part of the clamping assembly 1 (i.e., the base 11 of the clamping assembly 1) and the clamp 14 clamping the multiple watch cases 6, and reversely string them on the multiple hanging rods 55 of the serial connection plate 3, and take out the other part of the clamping assembly 1 (i.e., the base 11 of the clamping assembly 1);

[0051] Step 4, repeat steps 1 to 3, so that all the hanging rods 55 of the serial connection plate 3 are fully strung with the clamps 14 with the watch case 6;

[0052] Step 5, remove the two hanging rods 55 strung with the clamps 14 and install them between the two positioning plates;

[0053] Step 6: Use the pressing device 4 to press the clamp 14 between the two positioning plates to form the hanger 5.

[0054] Reference Figures 2 to 8 The clamping assembly 1 includes a base 11, a limiting plate 12, a cover plate 13 and a plurality of clamps 14. The cover plate 13 and the limiting plate 12 are stacked on the base 11 from top to bottom. The top of the base 11 is clamped with a plurality of clamp seats 142, and the bottom of the cover plate 13 is clamped with a plurality of clamp covers 141. All clamp covers 141 are coaxially magnetically connected with all clamp seats 142 in a one-to-one correspondence and form a plurality of the clamps 14. The limiting plate 12 is sleeved outside all the clamps 14 to form a plurality of cavities for accommodating the watch case 6.

[0055] Reference Figure 2 , Figure 3 and Figure 4 The top of the base 11 is provided with a plurality of lower mounting grooves, and a plurality of clamp seats 142 are installed in the plurality of lower mounting grooves one by one. A lower clamping groove 15 is provided on the inner wall of each lower mounting groove. The base 11 includes a bottom plate 112 and a lower supporting plate 111. The lower supporting plate 111 is superimposed on the bottom plate 112 and is clamped with the bottom plate 112 to form the lower clamping groove 15 of the base 11. The bottom plate 112 and the lower supporting plate 111 are jointly provided with a plurality of bottom holes 113 and a plurality of lower plug holes 114. The plurality of bottom holes 113 are located at the bottom of the plurality of lower mounting grooves one by one.

[0056] Reference Figure 1 , Figure 4 , Figure 6 and Figure 7The limiting plate 12 is clamped between the cover plate 13 and the base 11. The limiting plate 12 is used to limit all the watch cases 6. The limiting plate 12 includes a lower plate 122 and an upper plate 121. The upper plate 121 is superimposed on the lower plate 122 and clamped with the lower plate 122. The lower plate 122 and the upper plate 121 are jointly provided with a plurality of limiting holes. The inner wall of each limiting hole is arc-shaped, and the limiting hole is small at the top and large at the bottom, which can be used to limit the corresponding watch case 6 from moving downward.

[0057] Reference Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The bottom of the cover plate 13 is provided with a plurality of upper mounting grooves, and a plurality of clamping covers 141 are installed in the plurality of upper mounting grooves one by one. An upper clamping groove 16 is provided on the inner wall of each upper mounting groove. The cover plate 13 includes an upper supporting plate 132 and a top plate 131. The top plate 131 is superimposed on the upper supporting plate 132 and is clamped with the upper supporting plate 132 to form the upper clamping groove 16 of the cover plate 13. A plurality of upper plug holes 133 are commonly penetrated on the top plate 131 and the upper supporting plate 132. The plurality of upper plug holes 133 are coaxially arranged in the plurality of upper mounting grooves one by one.

[0058] Reference Figures 6 to 8 A single clamp 14 includes a clamp cover 141 and a clamp seat 142. The number of the clamp seats 142 is multiple and they are connected to the multiple lower mounting grooves of the base 11 one by one. Each clamp seat 142 includes a clamp block 1422 and a lower positioning block 1421. The outer wall of the clamp block 1422 is provided with a lower clamping platform 1423. The clamp block 1422 is installed in the lower mounting groove of the base 11, and its lower clamping platform 1423 is connected to the base 11. The lower positioning block 1421 overlaps It is fixed on the clamping block 1422 and located between the base 11 and the cover plate 13. The side of the lower positioning block 1421 is protruding. The top of the lower positioning block 1421 is provided with a limiting groove 1424. A plurality of lower magnets 146 are provided in the limiting groove 1424. A lower hole 143 is commonly penetrated by the center of the clamping seat 142 and the lower positioning block 1421. The lower hole 143 is located at the center of the limiting groove 1424. All the bottom holes 113 are coaxially connected with all the lower holes 143 in a one-to-one correspondence.

[0059] Reference Figures 6 to 8The number of the clamping covers 141 is multiple and they are connected to the multiple upper mounting grooves at the bottom of the cover plate 13 in a one-to-one manner. Each clamping cover 141 includes a clamping body 1411 and an upper positioning block 1412. A limiting platform 1414 is provided at the bottom of the upper positioning block 1412. The limiting platform 1414 matches the limiting groove 1424. A plurality of upper magnets 147 are provided at the bottom of the limiting platform 1414. The plurality of upper magnets 147 and the plurality of lower magnets 146 are magnetically adsorbed in a one-to-one manner, so that the upper positioning block 1412 is magnetically connected to the lower positioning block 1421. The side of the upper positioning block 1412 is protruding and forms an annular positioning groove 145 together with the protruding position of the side of the lower positioning block 1421. Each positioning groove 145 is closed by the limiting plate 12 to form the corresponding cavity. The watch case 6 is located in the annular cavity. The upper positioning block 141 2 is also located between the base 11 and the cover plate 13, the clamping body 1411 is superimposed and fixed on the upper positioning block 1412, the clamping body 1411 is installed in the upper installation groove at the bottom of the cover plate 13, an upper clamping platform 1413 is provided on the outer wall of the clamping body 1411, and the upper clamping platform 1413 is clamped with the upper clamping groove 16 of the cover plate 13, and the clamping body 1411 and the upper positioning block 1412 are both penetrated with upper holes 144 along their axial direction, all the upper holes 144 are coaxially connected with all the upper plug holes 133 on the cover plate 13 in a one-to-one correspondence to form a downward pressure channel, the lower hole 143 is coaxially connected with the downward pressure channel (that is, the upper plug hole 133, the upper hole 144 and the lower hole 143 are all coaxially connected), and the diameter of the lower hole 143 is smaller than the diameter of the corresponding downward pressure channel (the diameter of the lower hole 143 is smaller than the diameter of the upper hole 144, and also smaller than the diameter of the upper plug hole 133).

[0060] The clamping assembly 1 of the present invention clamps multiple clamping seats 142 on the base 11 to facilitate the placement of multiple watch cases 6, and then uses the limiting plate 12 to limit the multiple watch cases 6, and then covers the cover plate 13 with multiple clamping covers 141 clamped on it, and uses the multiple clamping covers 141 and multiple clamping seats 142 to form multiple clamps 14 with watch cases 6 clamped by magnetic connection one by one. The entire clamping assembly 1 is simple to operate, and can clamp multiple watch cases 6 quickly and damagelessly at the same time, thereby improving the clamping efficiency of the watch cases 6.

[0061] Reference Figures 9 to 13 The cover removal device 2 is used to remove the cover plate 13 and the limit plate 12. The cover removal device 2 includes a body 24, a slide 21, a pressure plate 23 and a clamping assembly 1. The slide 21 is slidably set on the body 24, and the clamping assembly 1 is limitedly carried on the slide 21. A pressure plate 23 with a lifting function is provided above the slide 21, and a plurality of pressure columns 231 for pushing all the clamps 14 and the base 11 downward together are provided at the bottom of the pressure plate 23.

[0062] Reference Figures 9 to 13The front and back of the body 24 are hollowed out, two slide rails are arranged on the inner bottom wall of the body 24, and the slide seat 21 is slidably arranged on the two slide rails. A plurality of support columns 211 and four guide columns 212 are vertically arranged on the slide seat 21. The four guide columns 212 are located at two corresponding edges of the slide seat 21. The four guide columns 212 pass through the base 11, the limit plate 12 and the cover plate 13. All the support columns 211 correspond to all the lower plug holes 114 on the base 11 one by one. After all the support columns 211 pass through the lower plug holes 114 of the base 11 one by one, The limit plate 12 and the cover plate 13 can be supported together. The pressing plate 23 is installed on the hollow part of the top of the body 24. Two cover opening cylinders 22 are fixed at intervals on the top of the body 24. The pressing plate 23 is located at the output end of the two cover opening cylinders 22 and is driven by the two cover opening cylinders 22 to move up and down. All pressure columns 231 are vertically arranged at the bottom of the pressing plate 23. All pressure columns 231 correspond one by one to the upper holes 144 of all clamping covers 141. All pressure columns 231 move through the limit plate 12 and the cover plate 13 and move against all clamps 14 one by one.

[0063] The cover removal device 2 of the present invention limits the position of the clamping assembly 1 that can clamp multiple watch cases 6 quickly and without damage and carries it on the slide seat 21. The pressure plate 23 is used to press down, so that multiple pressure columns 231 move downward at the same time, and all the clamps 14 and the base 11 clamped with the watch cases 6 are pushed downward together, which is convenient for cover removal (that is, removing the limit plate 12 and the cover plate 13), so that the user can easily and quickly take out the clamps 14 clamped with the watch cases 6 to prevent the watch cases 6 or the clamps 14 from being damaged during the removal process.

[0064] Reference Figure 1 The connecting plate 3 is in the shape of a plate, and a plurality of hanging rods 55 can be vertically inserted on the connecting plate 3. After removing the limit plate 12 and the cover plate 13, the base 11 with a plurality of clamps 14 can be removed from the slide 21 and invertedly connected to the plurality of hanging rods 55 on the connecting plate 3, so that the plurality of clamps 14 with the watch case 6 on the base 11 can be connected in series to the plurality of hanging rods 55 on the connecting plate 3.

[0065] Reference Figures 14 to 16 The clamping device 4 is used to install multiple hanging rods 55 connected in series with clamps 14 between two positioning plates and clamp them to form a hanger 5 with both ends clamped. The clamping device 4 includes a machine base 41, a slide plate 43, a supporting plate 44 and a clamping plate 451. The slide plate 43 is slidably set on the machine base 41, and the supporting plate 44 is movably supported on the slide plate 43. The supporting plate 44 is used to support the above-mentioned hanger 5. A clamping space 422 for the slide plate 43 to slide into is provided on one side of the machine base 41, and a clamping plate 451 for pushing up the supporting plate 44 is provided at the bottom of the clamping space 422.

[0066] Reference Figures 14 to 16A working panel 411 is provided on the top of the base 41, and two tracks 412 are provided on the working panel 411 at intervals. Each track 412 is arranged horizontally along the base 41. A baffle 42 is fixedly connected to the upper right side of the base 41 through the side plate. A clearance groove 421 for making way for the upper clamping plate 54 is provided at the bottom of the baffle 42. The clamping plate 451 passes through the right end of the working panel 411. The side of the working panel 411 opposite to the clamping plate 451 (i.e., the right side of the working panel 411), the baffle 42 and the side plate together form a clamping space 422.

[0067] Reference Figures 14 to 16 The slide plate 43 is slidably arranged on the two tracks 412 of the working panel 411. A baffle 431 for limiting the positions of the two positioning plates is vertically fixed on the side of the slide plate 43 away from the pressing space 422. The number of baffles 431 is two and they are arranged at intervals. The cross-section of each baffle 431 is L-shaped. The two corners of each positioning plate respectively press the inner walls of the two baffles 431. The top and bottom surfaces of the supporting plate 44 are exposed to the slide plate 43 so that the supporting plate 44 can move upward. A slot 441 for inserting the lower end of the hanging rod 55 is provided on the top surface of the supporting plate 44. The pressing plate 451 is located below the slide plate 43 and the supporting plate 44. A pressing cylinder 45 is fixed to the bottom of the right end of the working panel 411, and the pressing plate 451 is located on the output shaft of the pressing cylinder 45.

[0068] The clamping device 4 of the present invention uses the supporting plate 44 carried by the slide plate 43 to support the hanger 5 with convenient disassembly and flexible adjustment characteristics. By operating the clamping plate 451 to push upward the supporting plate 44 that slides into the clamping space 422 as the slide plate 43, the elastic sleeve 56 on the supporting plate 44 is compressed to deform, thereby prompting the two positioning plates to tightly clamp the clamp 14 connected in series on the hanging rod 55, which not only significantly improves the convenience of operation, but also ensures the speed and stability of the clamping process.

[0069] Reference Figures 15 to 20 The hanger 5 includes multiple hanging rods 55, two positioning plates and two clamping plates. The two positioning plates are respectively sleeved on the upper and lower ends of all the hanging rods 55. The two clamping plates are limitedly connected with the two positioning plates in a one-to-one correspondence. The two ends of the hanging rod 55 are movably clamped with the clamping plates in a one-to-one correspondence. Each hanging rod 55 is sleeved with an elastic sleeve 56 for providing elastic support for all the clamps 14 loaded on the corresponding hanging rod 55.

[0070] Reference Fig.15 , Fig.16 , Fig.19 and Fig. 20, a fixture 5 of the present invention preferably includes two hanging rods 55 which are arranged in parallel. At the upper and lower ends of each hanging rod 55, there are respectively provided clamping grooves. The two clamping grooves are specifically an upper clamping groove 552 and a lower clamping groove 551. Among them, the upper clamping groove 552 is located at the upper end of the hanging rod 55, and the lower clamping groove 551 is located at the lower end of the hanging rod 55. The elastic sleeve 56 is located above and close to the lower clamping groove 551.

[0071] Referring to Fig.17 and Fig.18 , the positioning plates at the upper and lower ends of the two hanging rods 55 are specifically an upper positioning plate 52 and a lower positioning plate 51. Among them, the upper positioning plate 52 is sleeved on the upper ends of the two hanging rods 55, and the lower positioning plate 51 is sleeved on the lower ends of the two hanging rods 55. The two clamping plates are specifically an upper clamping plate 54 and a lower clamping plate 53. The upper clamping plate 54 is superimposed on the top of the upper positioning plate 52, and the lower clamping plate 53 is located inside the lower positioning plate 51.

[0072] Referring to Fig.15 , Fig.16 and Fig.18 , the lower positioning plate 51 is in a "mu" shape. At the bottom of the lower positioning plate 51, two pairs of lower limit screws 511 are fixed. The lower ends of the two hanging rods 55 pass through the lower positioning plate 51 and extend outside the lower positioning plate 51. The lower clamping plate 53 is located in the groove at the bottom of the lower positioning plate 51. One end of the lower clamping plate 53 is provided with a handle, and the other end of the lower clamping plate 53 is provided with two pairs of lower limit side grooves 531. The same pair of lower limit side grooves 531 are located on the two corresponding side surfaces of the lower clamping plate 53. The same pair of lower limit screws 511 are correspondingly arranged in the same pair of lower limit side grooves 531. The lower clamping plate 53 is provided with two lower clamping holes 532 for the lower ends of the two hanging rods 55 to slide laterally in a one-to-one correspondence. Each lower clamping hole 532 is in a long strip shape. The lower ends of the two hanging rods 55 are respectively located in the two lower clamping holes 532. On the two corresponding inner walls of each lower clamping hole 532, there are respectively provided lower clamping platforms 5321. The lower clamping groove 551 at the lower end of each hanging rod 55 is movably clamped with the two lower clamping platforms 5321 in the corresponding lower clamping hole 532. The two elastic sleeves 56 are supported on the lower positioning plate 51.

[0073] Referring to Fig.17 , Fig.19 and Fig. 20, the upper positioning plate 52 is also in the shape of a Chinese character "mu". Two pairs of upper limit screws 521 are fixed to the bottom of the upper positioning plate 52. The upper ends of the two hanging rods 55 pass through the upper positioning plate 52 and extend outside the upper positioning plate 52. The upper clamping plate 54 is located at the top of the upper positioning plate 52. One end of the upper clamping plate 54 is provided with a handle, and the other end of the upper clamping plate 54 is provided with two pairs of upper limit side grooves 541. The same pair of upper limit side grooves 541 are located on two corresponding side surfaces of the upper clamping plate 54. The same pair of upper limit screws 521 are correspondingly arranged in the same pair of upper limit side grooves 541. Two upper clamping holes 542 for the upper ends of the two hanging rods 55 to slide laterally correspondingly are provided on the upper clamping plate 54. Each upper clamping hole 542 is in a strip shape. The upper ends of the two hanging rods 55 are respectively located in the two upper clamping holes 542. Upper clamping platforms 5421 are respectively provided on two corresponding inner walls of each upper clamping hole 542. The upper clamping grooves 552 at the upper ends of each hanging rod 55 are movably clamped with the two upper clamping platforms 5421 in the corresponding upper clamping hole 542.

[0074] The hanger 5 of the present invention realizes limit connection through two clamping plates and the positioning plates at both ends of the hanging rod 55, and the two ends of the hanging rod 55 can be flexibly and movably clamped with the two clamping plates. The user only needs to simply push and pull the two clamping plates to easily control the clamping state of the two ends of the hanging rod 55 and the two clamping plates, thus greatly simplifying the disassembly and assembly process of the hanging rod 55. At the same time, the design of the elastic sleeve 56 is introduced to provide necessary elastic support for all the clamps 14 on the hanging rod 55. During the polishing process, as the pressure on the workpiece (i.e., the watch case 6) clamped by the clamp 14 continuously changes, the elastic sleeve 56 can make corresponding flexible adjustments to ensure the stability and consistency of the polishing operation, thereby improving the polishing quality.

[0075] Refer to Figures 1 to 20 , the specific clamping method of the watch case before drum polishing of the present invention is as follows:

[0076] Clamp a plurality of clamp seats 142 correspondingly on a plurality of lower installation grooves at the top of the base 11;

[0077] Sheath a plurality of watch cases 6 correspondingly on the lower positioning blocks 1421 of the plurality of clamp seats 142;

[0078] Cover the upper limit plate 12. At this time, all the watch cases 6 can be located between the limit plate 12 and the base 11;

[0079] First, clamp a plurality of clamp covers 141 correspondingly on a plurality of upper installation grooves at the bottom of the cover plate 13, and then cover the cover plate 13 with the plurality of clamp covers 141 clamped thereon on the limit plate 12. The lower magnets 146 on the plurality of clamp seats 142 and the upper magnets 147 on the plurality of cover plates 13 are magnetically connected correspondingly to form a plurality of clamps 14. At this time, the base 11, the limit plate 12 and the cover plate 13 are superposed together due to the magnetic attraction of the clamps 14 to form a clamping assembly 1;

[0080] The clamping assembly 1 holding multiple watch cases 6 is placed on the slide 21, and the multiple support columns 211 are inserted into the multiple lower insertion holes 114 of the base 11 one by one and pressed against the bottom of the limit plate 12;

[0081] Push the slide 21 so that the slide 21 carrying the clamping assembly 1 slides to the bottom of the pressing plate 23;

[0082] The two cover-opening cylinders 22 drive the pressing plate 23 to move downward, and the multiple pressing columns 231 at the bottom of the pressing plate 23 pass through the multiple upper plug holes 133 on the cover plate 13 one by one, and then are inserted into the upper holes 144 of the multiple clamping covers 141 one by one. Since the diameter of the lower hole 143 of the clamping seat 142 is smaller than the diameter of the upper hole 144 of the clamping cover 141, the multiple pressing columns 231 will press the clamping seat 142 downward, and the clamping cover 141 will be disengaged from the cover plate 13, and all the clamps 14 and the base 11 clamping the watch case 6 will move downward together. Since the limiting plate 12 and the cover plate 13 are still supported on all the supporting columns 211, the cover plate 13 and the limiting plate 12 can be manually removed from the slide seat 21 smoothly, and the base 11 and all the clamps 14 clamping the watch case 6 will remain on the slide seat 21;

[0083] Manually remove multiple bases 11 with clamps 14 from the slide 21, and reversely string them on the multiple hanging rods 55 on the serial connection plate 3, so that the multiple clamps 14 on the base 11 are correspondingly stringed on the multiple hanging rods 55 on the serial connection plate 3, and then remove the base 11 from the serial connection plate 3;

[0084] The above steps are continuously repeated until all the hanging rods 55 on the connecting plate 3 are fully strung with the clamps 14;

[0085] Take down two of the hanging rods 55 with the clamps 14 from the connecting plate 3 and vertically insert them into the lower positioning plate 51, and the lower ends of the two hanging rods 55 pass through the lower positioning plate 51 and the lower clamping holes 532 of the lower clamping plate 53 in turn and extend to the outside of the lower clamping plate 53;

[0086] Manually push the lower clamping plate 53 inward along the length direction of the lower positioning plate 51, so that the lower clamping groove 551 at the lower end of each hanging rod 55 is clamped with the two lower clamping platforms 5321 corresponding to the lower clamping holes 532 on the lower clamping plate 53, so that the lower ends of the two hanging rods 55 can be connected to the lower positioning plate 51, so that the lower end of the hanger 5 is in a clamping state;

[0087] Install the upper positioning plate 52 which is limitedly connected with the upper clamping plate 54 on the upper ends of the two hanging rods 55, so that the upper ends of the two hanging rods 55 pass through the upper positioning plate 52 and the two upper clamping holes 542 of the upper clamping plate 54 in sequence and extend to the outside of the upper clamping plate 54, and adjust the position of the upper positioning plate 52 to make the upper end of the hanger 5 in a loose state;

[0088] Place the hanger 5 with the upper end in a loosened state on the carrier plate 44, so that the two hanging rods 55 extending beyond the lower card plate 53 are inserted into the two slots 441 of the carrier plate 44 one by one. At this time, the two stop bars 431 jointly position the upper positioning plate 52 and the lower positioning plate 51 (the two stop bars 431 respectively cooperate with the two corners of each positioning plate);

[0089] The slide plate 43 is pushed to the right, and the slide plate 43 drives the carrying plate 44, the hanger 5 and the clamp 14 connected in series to move to the right together, until the carrying plate 44 and the slide plate 43 move into the clamping space 422 and are located directly above the clamping plate 451, and the clamping cylinder 45 drives the clamping plate 451 to move upward, and the clamping plate 451 lifts the carrying plate 44 and the carried hanger 5 together, so that the upper positioning plate 52 presses against the baffle 42. At this time, since the lower end of the hanger 5 is stuck and the upper end of the hanger 5 is in a loose state, the clamp 14 connected in series by the two hanging rods 55 will compress the elastic sleeve 56 until the distance between the two positioning plates reaches a preset value, the clamping plate 451 stops moving upward, and the two positioning plates clamp the clamps 14 connected in series on the two hanging rods 55;

[0090] The upper clamping plate 54 is pushed inward along the length direction of the upper positioning plate 52, so that the upper clamping groove 552 at the upper end of each hanging rod 55 is clamped with the two upper clamping platforms 5421 corresponding to the upper clamping holes 542 on the upper clamping plate 54, so that the upper ends of the two hanging rods 55 can be connected to the upper positioning plate 52. At this time, the upper ends of the two hanging rods 55 are also in a clamped state;

[0091] The clamping plate 451 is reset and retracted, and the supporting plate 44 is supported on the slide plate 43 again. The slide plate 43 is pushed to the left, and the supporting plate 44, the hanger 5 and all the clamps 14 connected in series, and the watch case 6 clamped on the clamp 14 are moved to the leftmost end of the machine base 41 along with the slide plate 43. The hanger 5 with both ends clamped can be removed and put into the drum polishing machine for polishing.

[0092] After polishing is completed, when it is necessary to remove the two hanging rods 55 of the hanger 5 and the connected clamps 14 and the watch case 6, first manually pull the upper clamping plate 54 outward along the length direction of the upper positioning plate 52 to disengage the upper ends of the two hanging rods 55 from the upper clamping plate 54, and then the upper positioning plate 52 with the upper clamping plate 54 connected in a limited position can be removed, and then manually pull the lower clamping plate 53 outward along the length direction of the lower positioning plate 51 to disengage the lower ends of the two hanging rods 55 from the lower clamping plate 53, and then the lower positioning plate 51 with the lower clamping plate 53 connected in a limited position can be removed.

[0093] The method for clamping watch cases before roller polishing of the present invention utilizes a clamping assembly 1 to clamp a plurality of watch cases 6 one by one on a plurality of fixtures 14, then a portion of the clamping assembly 1 is disassembled by a cover removal device 2 to expose all the fixtures 14, then the other portion of the clamping assembly 1 and all the fixtures 14 carried thereon are removed, and all the exposed fixtures 14 are connected one by one in series to a plurality of hanging rods 55, and finally a clamping device 4 is utilized to install the plurality of hanging rods 55 connected in series with the fixtures 14 between two positioning plates and clamp them to form a hanger 5, so as to facilitate roller polishing. The entire production line simplifies the clamping processing production process of the watch cases 6, and can clamp a plurality of watch cases 6 simultaneously and quickly without damage, thereby improving the clamping efficiency of the watch cases 6.

[0094] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A method for clamping before roller polishing of a watch case, characterized in that: The following steps are involved: Step 1: Clamp multiple watch cases onto multiple fixtures one by one using a clamping assembly; Step 2, moving the clamping assembly holding the multiple watch cases onto the cover removal device, and using the cover removal device to remove a portion of the clamping assembly to expose all the clamps; Step 3, remove the disassembled part of the clamping assembly, remove the other part of the clamping assembly and the clamp with multiple watch cases clamped together, and reversely string them on multiple hanging rods of the serial connection plate, and take out the other part of the clamping assembly; Step 4: Repeat steps 1 to 3 to make all the hanging rods of the connecting plate be strung with the clamps with the watch cases; Step 5: Remove the two hanging rods that are full of clamps and install them between the two positioning plates; Step 6: Use a clamping device to press the clamp between the two positioning plates to form a hanger.

2. The method for clamping a watch case before roller polishing according to claim 1, characterized in that: The clamping assembly includes a cover plate, a limit plate and a base, the cover plate and the limit plate are stacked on the base in sequence from top to bottom, a plurality of clamp seats are clamped on the top of the base, a plurality of clamp covers are clamped on the bottom of the cover plate, all the clamp covers are coaxially magnetically connected with all the clamp seats in a one-to-one correspondence to form the clamps, and the limit plate is sleeved outside all the clamps to form a plurality of cavities in a corresponding manner.

3. The method for clamping a watch case before roller polishing according to claim 2, characterized in that: A limiting platform is provided at the bottom of the clamp cover, a limiting groove is provided at the top of the clamp seat, the limiting platform matches the limiting groove, and the bottom of the limiting platform is magnetically connected to multiple lower magnets in the limiting groove through multiple upper magnets.

4. The method for clamping a watch case before roller polishing according to claim 2, characterized in that: The cover removal device is used to disassemble the cover plate and the limiting plate. The cover removal device includes a body and a slide seat for limiting and carrying the clamping assembly. The slide seat is slidably connected to the body. A pressure plate with a lifting function is provided above the slide seat. A plurality of pressure columns for pushing all the clamps and the base downward together are provided at the bottom of the pressure plate.

5. The method for clamping a watch case before roller polishing according to claim 4, characterized in that: A plurality of support columns are vertically arranged on the slide seat, all of which pass through the base and jointly support the limit plate, and all of which press columns movably pass through the limit plate and the cover plate and movably press all of the clamps in a one-to-one correspondence.

6. The method for clamping a watch case before roller polishing according to claim 1, characterized in that: The two positioning plates are respectively mounted on the upper and lower ends of all the hanging rods of the hanger, and the upper limit of each positioning plate is connected with a clamping plate. The two ends of the hanging rod of the hanger are respectively movably connected with the clamping plates in a one-to-one correspondence. Each hanging rod of the hanger is mounted with an elastic sleeve to provide elastic support for all the clamps mounted on the corresponding hanging rod.

7. The method for clamping a watch case before roller polishing according to claim 6, characterized in that: At least one pair of limit screws is fixed on the positioning plate, and at least one pair of limit side grooves is provided on the clamping plate. The same pair of limit side grooves are located on two corresponding side surfaces of the clamping plate, and the same pair of limit screws are arranged in the same pair of limit side grooves in a one-to-one correspondence.

8. The method for clamping a watch case before roller polishing according to claim 6, characterized in that: The two clamping plates are both provided with clamping holes for the two ends of the hanging rod of the hanger to slide sideways, and the two ends of the hanging rod of the hanger are respectively located in the clamping holes of the two clamping plates.

9. The method for clamping a watch case before roller polishing according to claim 8, characterized in that: A clamping platform is respectively arranged on two corresponding inner walls of each clamping hole, and clamping grooves are respectively arranged at two ends of the hanging rod of the hanger, and the clamping grooves are movably clamped with the clamping platform.

10. The method for clamping a watch case before roller polishing according to claim 1, characterized in that: The clamping device includes a machine base, a slide plate is slidably connected to the machine base, a carrying plate for carrying the hanger is movably supported on the slide plate, a clamping space for the slide plate to slide into is provided on one side of the machine base, and a clamping plate for pushing up the carrying plate is provided at the bottom of the clamping space.

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