Milling device for sewing machine shell production

Abstract

The invention relates to the technical field of sewing machine processing, in particular to a milling device for sewing machine shell production, which comprises a machine tool main body and a workbench movably arranged on the machine tool main body, a locking mechanism capable of limiting the positions of sewing machine shells of different specifications and keeping the sewing machine shells stable is arranged on the workbench and comprises a plurality of sliding transverse grooves formed in the workbench and distributed in a circumferential array mode, and movable vertical rods arranged on the inner sides of the sliding transverse grooves in a sliding mode respectively. Sewing machine shells of different specifications can be fixed more stably, the shells cannot be loosened during machining, the situation that due to the fact that an existing milling device is difficult to stably clamp the sewing machine shells of different specifications, flaws are prone to occurring during machining is avoided, the size milling accuracy of the sewing machine shells is improved, and the machining efficiency is improved. And the milling quality of the milling device is improved, and the practicability of the milling device is also improved.

Description

Technical Field

[0001] The invention relates to the technical field of sewing machine processing, and in particular to a milling device for producing a sewing machine shell. Background Art

[0002] Sewing machines are widely used in the textile industry and in daily life. The shell of the sewing machine needs to be milled to obtain a shell structure of a suitable shape. At the same time, milling can improve the dimensional accuracy of the sewing machine shell and ensure that the various components can fit correctly. The existing milling device usually clamps the sewing machine shell on the workbench and transports it to the bottom of the milling cutter for processing. However, it is difficult to adapt well to sewing machine shells of different specifications, which makes the shell easy to loosen during milling, resulting in defects in the shell processing, causing the size of the sewing machine shell to be inaccurate and reducing the milling quality. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a milling device for producing sewing machine housings, which solves the problem that the prior art is difficult to stably clamp sewing machine housings of different specifications, resulting in defects in its processing.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A milling device for producing sewing machine shells comprises a machine tool body and a workbench movably arranged on the machine tool body, a driving member for pushing the workbench to move is installed on the machine tool body, a locking mechanism which can limit the position of sewing machine shells of different specifications and maintain stability is arranged on the workbench, the locking mechanism comprises a plurality of sliding transverse grooves distributed in a circumferential array and opened on the workbench, and movable vertical rods respectively slidably arranged on the inner sides of the plurality of sliding transverse grooves, an anti-slip splint is arranged on one side of the top of the movable vertical rod, a connecting transverse axis is fixedly arranged on one side of the anti-slip splint, a reset spring with one end fixed to the anti-slip splint is sleeved on the outer side of the connecting transverse axis, and the other end of the reset spring is fixedly connected to the movable vertical plate, a transmission component for synchronously pushing the plurality of movable vertical rods to move so that the plurality of anti-slip splints clamp and fix the sewing machine shell is arranged at the bottom of the workbench, and the locking mechanism also comprises a clamping component arranged on the workbench for pressing the sewing machine shell.

[0006] As a further optimization scheme of the present invention, the transmission assembly includes a supporting ring body fixedly arranged at the bottom of the workbench, and an annular groove opened on the outer side of the bottom of the supporting ring body, a transmission gear ring is rotatably arranged on the inner side of the annular groove, and a worm gear is respectively arranged on one side of the bottom of the plurality of movable vertical rods, and a threaded horizontal axis is fixed at the axis center of the worm gear, which rotates with the bottom of the workbench through a bearing seat, and the threaded horizontal rod passes through the movable vertical rod and is threadedly connected with it, and a worm is meshed with one side of the worm wheel.

[0007] As a further optimization solution of the present invention, a driven gear meshingly connected to the transmission gear ring is provided at the bottom of the worm, and a connecting vertical shaft fixed to the bottom of the worm is fixed at the axis of the driven gear.

[0008] As a further optimization scheme of the present invention, a connecting horizontal plate fixed to the supporting ring body is rotatably provided at the bottom of the connecting vertical shaft through a bearing, and a driving component for driving one of the connecting vertical shafts to rotate is provided on one side of the bottom of the workbench.

[0009] As a further optimization scheme of the present invention, the driving component includes a connecting frame fixedly arranged on one side of the bottom of the workbench and sliding in the machine tool body, a servo motor is fixedly installed on the bottom of the connecting frame, and a bevel gear 1 is fixed on the output shaft of the servo motor.

[0010] As a further optimization scheme of the present invention, bevel gear 2 is meshed with one side of bevel gear 1, a supporting vertical shaft that rotates with the connecting frame through a bearing is fixed at the axis center of bevel gear 2, and the top of the supporting vertical shaft is fixedly connected to the bottom of one of the connecting vertical shafts.

[0011] As a further optimization scheme of the present invention, the clamping assembly includes a limiting vertical tube respectively arranged on one side of multiple movable vertical rods, and a threaded vertical shaft rotatably arranged inside the limiting vertical tube, and the threaded vertical shaft passes through the workbench and is fixedly connected to the top of the worm.

[0012] As a further optimization scheme of the present invention, a sliding vertical groove is opened on the top of the limiting vertical pipe, a movable pressure rod is slidably arranged inside the sliding vertical groove, and a threaded vertical shaft passes through one end of the movable pressure rod and is threadedly connected thereto.

[0013] As a further optimization scheme of the present invention, a movable pressure plate is provided at the other end of the movable pressure rod, the top of the movable pressure plate passes through the movable pressure rod and is slidably connected with it, and the top fixed sleeve of the movable pressure plate is provided with a limit spring that fixes the top and the bottom of the movable pressure rod.

[0014] By means of the above technical solution, the present invention provides a milling device for producing a sewing machine housing, which has at least the following beneficial effects compared with the prior art:

[0015] 1. The present invention fixes sewing machine housings of different specifications for milling operations by setting a locking mechanism, and simultaneously moves the positions of multiple movable vertical rods through a transmission component to fix the sewing machine housing in the middle of a workbench. At the same time, the top of the housing is pressed against the workbench in cooperation with a clamping component, which is conducive to fixing sewing machine housings of different specifications more stably, and the housing will not become loose during processing, thereby avoiding the situation in which the existing milling device is difficult to stably clamp sewing machine housings of different specifications, resulting in defects in its processing, thereby improving the accuracy of milling the size of the sewing machine housing and improving the milling quality of the milling device.

[0016] 2. The present invention synchronously drives the movement of multiple movable vertical rods by setting a transmission component, drives one of the connected vertical shafts to rotate through the driving component, and the connected vertical shaft drives the driven gear on the top to rotate. The driven gear drives the remaining driven gears to rotate through the transmission gear ring. Through the transmission structure, multiple movable vertical rods are pushed to move at the same time, and the shell is clamped and fixed from multiple angles. Not only the stability of the shell clamping is improved, but also shells of various specifications can be milled, thereby expanding the application scope of the milling device.

[0017] 3. The present invention presses the sewing machine housing onto the workbench by arranging a clamping assembly. When the worm rotates, the threaded vertical shaft drives the movable pressure rod and the movable pressure plate at one end thereof to move downward. The movable pressure plate presses the top of the housing, so that the housing is fixed more stably, which helps to make the milling process more precise and improves the practicability of the milling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the locking mechanism of the present invention;

[0021] Figure 3 It is a front cross-sectional view of the locking mechanism of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the transmission assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the driving component of the present invention;

[0024] Figure 6 It is an exploded schematic diagram of the abutment assembly of the present invention;

[0025] Figure 7 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0026] In the figure: 1. Machine tool body; 2. Workbench; 3. Driving parts;

[0027] 4. Locking mechanism; 41. Sliding horizontal groove; 42. Movable vertical rod; 43. Anti-slip splint; 44. Connecting horizontal axis; 45. Return spring;

[0028] 46, transmission assembly; 461, supporting ring body; 462, transmission gear ring; 463, worm wheel; 464, threaded horizontal shaft; 465, worm; 466, driven gear; 467, connecting vertical shaft; 468, connecting horizontal plate;

[0029] 469, driving component; 4691, connecting frame; 4692, servo motor; 4693, bevel gear 1; 4694, bevel gear 2; 4695, supporting vertical shaft;

[0030] 47. Tightening assembly; 471. Position-limiting vertical tube; 472. Threaded vertical shaft; 473. Sliding vertical groove; 474. Movable pressure rod; 475. Movable pressure plate; 476. Position-limiting spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] First embodiment

[0033] The sewing machine housing effectively protects the motor, gears and other important parts inside the sewing machine from the influence of the external environment, and at the same time provides a solid structural support for the sewing machine, ensuring the stability and accuracy of each part when working. In order to improve the dimensional accuracy and geometric shape accuracy of the sewing machine housing and ensure that each part can fit correctly, the sewing machine housing needs to be milled during production. Since the existing milling device is difficult to stably clamp sewing machine housings of different specifications, it is easy to loosen during processing, resulting in defects in the processed housing. In order to fix the sewing machine housings of different specifications more stably and prevent the housings from loosening during processing, refer to Figure 1 - Figure 3 and Figure 7 The present embodiment provides a milling device for producing sewing machine shells, which is composed of a machine tool body 1, a workbench 2, a driving member 3 and a locking mechanism 4. The workbench 2 is movably arranged on the machine tool body 1, the driving member 3 is installed on the machine tool body 1 to push the workbench 2 to move, and the locking mechanism 4 is arranged on the workbench 2 to limit the position of sewing machine shells of different specifications and maintain stability.

[0034] In order to avoid the situation that the existing milling device is difficult to stably clamp sewing machine housings of different specifications, which may cause defects in its processing, the locking mechanism 4 includes a plurality of sliding transverse grooves 41 distributed in a circumferential array and opened on the workbench 2, and movable vertical rods 42 respectively slidably arranged on the inner sides of the plurality of sliding transverse grooves 41, a non-slip splint 43 is arranged on the top side of the movable vertical rod 42, a connecting transverse axis 44 is fixedly arranged on one side of the non-slip splint 43, a return spring 45 with one end fixed to the non-slip splint 43 is sleeved on the outer side of the connecting transverse axis 44, and the other end of the return spring 45 is fixedly connected to the movable vertical plate, and the plurality of movable vertical rods 42 move toward the housing at the same time, and the movable vertical rod 42 drives the non-slip splint 43 to move through the connecting transverse axis 44 at its top, and the non-slip splint 43 contacts the side of the housing to clamp the housing, thereby improving the accuracy of milling the size of the sewing machine housing and improving the milling quality of the milling device.

[0035] Second embodiment

[0036] In order to improve the stability of the shell clamping, it can also mill shells of various specifications, expanding the scope of application of the milling device. Figure 4 - Figure 5 In this embodiment, a transmission assembly 46 is provided at the bottom of the workbench 2 for synchronously pushing the multiple movable vertical rods 42 to move so that the multiple anti-slip clamps 43 clamp the sewing machine housing. The specific implementation method is that the transmission assembly 46 includes a support ring body 461 fixedly arranged at the bottom of the workbench 2, and an annular groove opened on the outer side of the bottom of the support ring body 461. A transmission gear ring 462 is rotatably arranged on the inner side of the annular groove. The transmission gear ring 462 rotates on the inner side of the annular groove, so that the transmission gear ring 462 is more stable when rotating and transmitting. Worm gears 463 are respectively provided on one side of the bottom of the multiple movable vertical rods 42. A worm gear 463 is fixed at the axis of the worm gear 463. A threaded horizontal shaft 464 is fixedly provided which rotates with the bottom of the workbench 2 through a bearing seat, and the threaded horizontal rod passes through the movable vertical rod 42 and is threadedly connected thereto, a worm 465 is meshedly provided on one side of the worm wheel 463, a driven gear 466 which is meshed and connected to the transmission gear ring 462 is provided at the bottom of the worm 465, a connecting vertical shaft 467 which is fixed to the bottom of the worm 465 is fixed at the axis center of the driven gear 466, a connecting horizontal plate 468 which is fixed to the support ring body 461 is rotatably provided at the bottom of the connecting vertical shaft 467 through a bearing, and a driving component 469 for driving one of the connecting vertical shafts 467 to rotate is provided on one side of the bottom of the workbench 2.

[0037] The driving component 469 drives one of the connecting vertical shafts 467 to rotate, and the connecting vertical shaft 467 drives the driven gear 466 on the top thereof to rotate, and the driven gear 466 drives the transmission gear ring 462 meshing with it to rotate, and the transmission gear ring 462 drives the remaining driven gears 466 to rotate, and the remaining driven gears 466 respectively drive the connecting vertical shafts 467 at their axis centers to rotate, so that multiple connecting vertical shafts 467 rotate at the same time, and the connecting vertical shaft 467 drives the worm 465 at its top to rotate, and the worm 465 drives the worm wheel 463 meshing with it to rotate, and the worm wheel 463 drives the threaded horizontal shaft 464 at its axis center to start rotating, and the threaded horizontal shaft 464 drives the movable vertical rod 42 to slide on the inner side of the limiting horizontal groove, so that multiple movable vertical rods 42 move toward the middle at the same time, and the sewing machine housing is clamped and fixed on the workbench 2 at multiple angles, so that the sewing machine housing is more stable during milling, and the milling accuracy is improved.

[0038] Furthermore, the driving component 469 includes a connecting frame 4691 fixedly arranged on one side of the bottom of the workbench 2 and sliding in the machine tool body 1, a servo motor 4692 is fixedly installed on the bottom of the connecting frame 4691, a bevel gear 1 4693 is fixed on the output shaft of the servo motor 4692, a bevel gear 2 4694 is meshed with one side of the bevel gear 1 4693, a supporting vertical shaft 4695 that rotates with the connecting frame 4691 through a bearing is fixed at the axis of the bevel gear 2 4694, and the top of the supporting vertical shaft 4695 is fixedly connected to the bottom of one of the connecting vertical shafts 467, by starting the servo motor 4692, the output shaft of the servo motor 4692 drives the bevel gear 1 4693 and the bevel gear 2 4694 to rotate simultaneously, the bevel gear 2 4694 drives the supporting vertical shaft 4695 to rotate, and the supporting vertical shaft 4695 drives the connecting vertical shaft 467 at its top to rotate.

[0039] Third embodiment

[0040] In order to make the sewing machine housing more stable and help the milling process more accurate, refer to Figure 6In this embodiment, a clamping assembly 47 for clamping the sewing machine housing is arranged on the workbench 2. The specific implementation method is that the clamping assembly 47 includes a limiting vertical tube 471 respectively arranged on one side of a plurality of movable vertical rods 42, and a threaded vertical shaft 472 rotatably arranged on the inner side of the limiting vertical tube 471, the threaded vertical shaft 472 penetrates the workbench 2 and is fixedly connected with the top of the worm 465, a sliding vertical groove 473 is provided on the top of the limiting vertical tube 471, a movable pressure rod 474 is slidably arranged on the inner side of the sliding vertical groove 473, and the threaded vertical shaft 472 penetrates one end of the movable pressure rod 474 and is threadedly connected thereto, a movable pressure plate 474 is arranged at the other end of the movable pressure rod 474, the top of the movable pressure plate 474 penetrates the movable pressure rod 474 and is slidably connected thereto, and the top fixed sleeve of the movable pressure plate 474 is provided with a limiting spring 475 fixed to the top and the bottom of the movable pressure rod 474.

[0041] When multiple worm gears 465 rotate at the same time, the worm gear 465 drives the top threaded vertical shaft 472 to rotate, and the threaded vertical shaft 472 drives the top movable pressure rod 474 to slide downward in the sliding vertical groove 473. The movable pressure rod 474 drives the movable pressure plate 474 at one end to move downward, and the movable pressure plate 474 contacts the top of the shell, further pressing and fixing the shell on the workbench 2.

[0042] In actual use of the present invention, the sewing machine housing is fixed on the workbench 2, the driving member 3 is started, the workbench 2 is transported to the milling position of the machine tool body 1, and then the housing is milled by a milling cutter. The milling process of the sewing machine housing is safer, and no manual loading is required, thereby improving the safety and practicality of the milling device.

[0043] Before the milling device is put into operation, the sewing machine housing is placed in the middle position of the workbench 2, and then the servo motor 4692 is started. The output shaft of the servo motor 4692 drives the bevel gear 1 4693 to rotate, and the bevel gear 1 4693 drives the meshing bevel gear 2 4694 to rotate, and the bevel gear 2 4694 drives the supporting vertical shaft 4695 at its axis to rotate, and the supporting vertical shaft 4695 drives the connecting vertical shaft 467 at its top to rotate, and the connecting vertical shaft 467 drives the driven gear 466 at its top to rotate, and the driven gear 466 drives the transmission gear ring 462 meshing with it to rotate, and the transmission gear ring 462 drives the remaining driven gears 466 to rotate, and the remaining driven gears 466 respectively drive the connecting vertical shafts 467 at their axis centers to rotate;

[0044] The multiple connecting vertical shafts 467 rotate at the same time, the connecting vertical shaft 467 drives the worm 465 on the top to rotate, the worm 465 drives the worm wheel 463 meshing with it to rotate, the worm wheel 463 drives the threaded horizontal shaft 464 at its axis to start rotating, the threaded horizontal shaft 464 drives the movable vertical rod 42 to slide inside the limiting horizontal groove, so that the multiple movable vertical rods 42 move toward the middle at the same time, the movable vertical rod 42 drives the connecting horizontal shaft 44 on the top to move, the connecting horizontal shaft 44 drives the anti-skid splint 43 at one end to move, the anti-skid splint 43 contacts the side of the shell, and at the same time pushes the anti-skid splint 43 and the connecting horizontal shaft 44 to move, the anti-skid splint 43 squeezes the reset spring 45, the reset spring 45 produces elastic deformation and is compressed, providing a reaction force to the anti-skid splint 43, clamping the shell, and clamping the sewing machine shell on the workbench 2 at multiple angles.

[0045] At the same time, multiple worm gears 465 drive the top threaded vertical shaft 472 to rotate, and the threaded vertical shaft 472 drives the top movable pressure rod 474 to slide downward in the sliding vertical groove 473, and the movable pressure rod 474 drives the movable pressure plate 474 at one end to move downward, and the movable pressure plate 474 contacts the top of the shell, and at the same time pushes the movable pressure plate 474 to move upward, and the movable pressure plate 474 squeezes the limit spring 475, and the limit spring 475 produces elastic deformation and is compressed, providing a reaction force to the movable pressure plate 474, further pressing and fixing the shell on the workbench 2, and then the workbench 2 is transported to the milling position of the machine tool body 1 through the driving part 3, and then the shell is milled by the milling cutter.

[0046] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling device for producing sewing machine housings, comprising a machine tool body (1) and a workbench (2) movably arranged on the machine tool body (1), characterized in that: The machine tool body (1) is provided with a driving member (3) for driving the workbench (2) to move, and the workbench (2) is provided with a locking mechanism (4) capable of limiting the position of sewing machine housings of different specifications and maintaining stability; The locking mechanism (4) comprises a plurality of sliding transverse grooves (41) arranged in a circumferential array on the workbench (2), and movable vertical rods (42) respectively slidably arranged inside the plurality of sliding transverse grooves (41); a non-slip clamping plate (43) is arranged on one side of the top of the movable vertical rod (42); a connecting transverse axis (44) is fixedly arranged on one side of the non-slip clamping plate (43); a return spring (45) having one end fixed to the non-slip clamping plate (43) is sleeved on the outer side of the connecting transverse axis (44); and the other end of the return spring (45) is fixedly connected to the movable vertical plate; a transmission assembly (46) for synchronously pushing the plurality of movable vertical rods (42) to move so that the plurality of non-slip clamping plates (43) clamp and fix the sewing machine housing is arranged at the bottom of the workbench (2); and the locking mechanism (4) further comprises a pressing assembly (47) arranged on the workbench (2) for pressing the sewing machine housing.

2. A milling device for producing a sewing machine housing according to claim 1, characterized in that: The transmission assembly (46) comprises a support ring body (461) fixedly arranged at the bottom of the workbench (2), and an annular groove opened on the outer side of the bottom of the support ring body (461), a transmission gear ring (462) is rotatably arranged on the inner side of the annular groove, a worm gear (463) is respectively arranged on one side of the bottom of the plurality of movable vertical rods (42), a threaded horizontal shaft (464) is fixed at the axis of the worm gear (463) and is rotatable with the bottom of the workbench (2) through a bearing seat, and the threaded horizontal rod passes through the movable vertical rod (42) and is threadedly connected thereto, and a worm (465) is meshed with one side of the worm gear (463).

3. A milling device for producing a sewing machine housing according to claim 2, characterized in that: A driven gear (466) meshingly connected with the transmission gear ring (462) is provided at the bottom of the worm (465), and a connecting vertical shaft (467) fixed to the bottom of the worm (465) is fixed at the axis of the driven gear (466).

4. A milling device for producing a sewing machine housing according to claim 3, characterized in that: A connecting transverse plate (468) fixed to the supporting ring body (461) is rotatably provided at the bottom of the connecting vertical shaft (467) via a bearing, and a driving component (469) for driving one of the connecting vertical shafts (467) to rotate is provided on one side of the bottom of the workbench (2).

5. A milling device for producing sewing machine housing according to claim 4, characterized in that: The driving component (469) comprises a connecting frame (4691) fixedly arranged on one side of the bottom of the workbench (2) and sliding in the machine tool body (1), a servo motor (4692) is fixedly installed at the bottom of the connecting frame (4691), and a bevel gear 1 (4693) is fixed on the output shaft of the servo motor (4692).

6. A milling device for producing sewing machine housing according to claim 5, characterized in that: A bevel gear 2 (4694) is meshed with one side of the bevel gear 1 (4693), and a supporting vertical shaft (4695) is fixed at the axis of the bevel gear 2 (4694) and rotates with the connecting frame (4691) through a bearing, and the top of the supporting vertical shaft (4695) is fixedly connected to the bottom of one of the connecting vertical shafts (467).

7. A milling device for producing a sewing machine housing according to claim 2, characterized in that: The abutting assembly (47) comprises a limiting vertical tube (471) respectively arranged on one side of the plurality of movable vertical rods (42), and a threaded vertical shaft (472) rotatably arranged inside the limiting vertical tube (471); the threaded vertical shaft (472) penetrates the workbench (2) and is fixedly connected to the top of the worm (465).

8. A milling device for producing a sewing machine housing according to claim 7, characterized in that: A sliding vertical groove (473) is provided on the top of the position-limiting vertical pipe (471), a movable pressure rod (474) is slidably provided inside the sliding vertical groove (473), and a threaded vertical shaft (472) passes through one end of the movable pressure rod (474) and is threadedly connected thereto.

9. A milling device for producing sewing machine housing according to claim 8, characterized in that: A movable pressure plate (474) is provided at the other end of the movable pressure rod (474), the top of the movable pressure plate (474) passes through the movable pressure rod (474) and is slidably connected thereto, and a top fixing sleeve of the movable pressure plate (474) is provided with a limit spring (475) fixed at the top and the bottom of the movable pressure rod (474).

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