WO2022099771A1

WO2022099771A1 - Positioning fixture for machining of housing of sewing machine head

Info

Publication number: WO2022099771A1
Application number: PCT/CN2020/130691
Authority: WO
Inventors: 胡粉义
Original assignee: 吴江市震宇缝制设备有限公司
Priority date: 2020-11-12
Filing date: 2020-11-21
Publication date: 2022-05-19
Also published as: CN112475990A

Abstract

A positioning fixture for machining of a housing of a sewing machine head, comprising a base (1) and an upright column (11); the upright column (11) is arranged above the base (1), a mounting base (13) is fixedly mounted in the middle of the upright column (11), clamping assemblies (14) for clamping a housing are symmetrically arranged on two sides of the mounting base (13), the mounting base (13) is fixedly connected to the clamping assemblies (14), and a position adjustment assembly for adjusting the height of the upright column (11) is arranged between the upright column (11) and the base (1). The positioning fixture achieves the adjustment of the height of the clamping assemblies by means of the provision of the position adjustment assembly, facilitating clamping of housings in different environments, increasing the machining efficiency of housings, and achieving the clamping and limiting of housings of different shapes by means of the provision of a swing assembly.

Description

A positioning fixture for processing the shell of a sewing machine head

technical field

The invention relates to the technical field of sewing machines, in particular to a positioning fixture used for processing a casing of a sewing machine head.

Background technique

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing material are interlaced or sewn together. The sewing machine can sew cotton, linen, silk, wool, man-made fibers and other fabrics and leather, plastic, paper and other products. Sewing machines are generally composed of four parts: feeding device, machine base, transmission and accessories.

Chinese patent CN211760065U discloses a positioning fixture for machining a sewing machine head shell, including two unilateral fixtures symmetrically distributed on a pallet, the unilateral fixtures are provided with a hydraulic cylinder assembly for providing power, and the hydraulic A splint structure is arranged on the cylinder assembly; wherein, a plurality of unit push plate structures distributed in an array are added to the splint structure, and a cylinder I is provided on the unit push plate structure, and a push plate is provided on the ball hinge on the cylinder I, and the unit push plate structure is provided with a push plate. The push plate is hinged with a plurality of cylinders II distributed in an annular array, but the device cannot adjust the position of the splint mechanism, which increases the difficulty of processing the casing. Therefore, we propose a positioning fixture for processing the casing of the sewing machine head.

technical solutions

The purpose of the present invention is to provide a positioning fixture for processing the shell of a sewing machine head, including a base and a column, a column is arranged above the base, a mounting seat is fixedly installed in the middle of the column, and two sides of the mounting seat are symmetrically arranged for clamping The clamping component of the shell, the mounting seat and the clamping component are fixedly connected, a position adjustment component for adjusting the height of the column is arranged between the column and the base, and two horizontal bars are symmetrically arranged on both sides of the mounting seat, and the horizontal bars are fixed on the A limit plate for limiting the position of the shell is installed, and the limit plate is made of rubber, so as to solve the problem that the existing device cannot adjust the position of the splint mechanism, thereby increasing the processing difficulty of the shell.

To achieve the above object, the present invention provides the following technical solutions:

A positioning fixture for processing a sewing machine head shell, comprising a base and a column, a column is arranged above the base, a mounting seat is fixedly installed in the middle of the column, and clamping components for clamping the shell are symmetrically arranged on both sides of the mounting seat. The mounting seat and the clamping component are fixedly connected, a position adjustment component for adjusting the height of the vertical column is arranged between the column and the base, two horizontal cross bars are symmetrically arranged on both sides of the mounting seat, and a horizontal bar is fixedly installed on the horizontal bar for limiting the housing. Position limit plate, the limit plate is made of rubber material.

As a further solution of the present invention: the position adjustment assembly includes a hydraulic cylinder, a rack and a gear, the hydraulic cylinder is fixedly installed on the upper surface of the base, and the telescopic end of the hydraulic cylinder is fixedly connected with a rack, a gear is arranged above the rack, and the gear The gear is meshed with the rack for transmission, and one end of the gear is rotatably connected to the base through a bearing. The gear is symmetrically provided with two sections of external threads with opposite directions and the same pitch, and each section of the external thread is sleeved with a first A threaded block, a push rod is hinged above the first threaded block, an end of the push rod away from the first threaded block is hinged with a hinged seat, the hinged seat is fixedly installed on the lifting seat by bolts, and the lifting seat is fixedly connected to the bottom of the column.

As a further solution of the present invention, a stopper plate for limiting the position of the mounting seat is fixedly installed on the top of the upright column.

As a further solution of the present invention: the clamping assembly includes a vertical positioning seat and a second screw rod, a second screw rod is longitudinally arranged in the vertical positioning seat, the second screw rod is rotatably connected to the side wall of the vertical positioning seat, and the second screw rod A first runner is fixedly installed on the top of the screw, and two sections of external threads with opposite directions of rotation and the same pitch are symmetrically arranged on the second screw. A connecting rod is fixedly connected, and one end of the connecting rod far away from the second threaded block is connected with a swing assembly for clamping the housing.

As a further solution of the present invention: the swing assembly includes a hinge slot and a working motor, the working motor is fixedly installed in the hinge slot, the output end of the working motor is fixedly connected with a swing seat, and a second runner is arranged below the swing seat, and the second The runner and the swing seat are rotatably connected.

As a further solution of the present invention, two sections of external threads with opposite rotation directions and the same pitch are symmetrically arranged on the second runner, and each section of the external thread is respectively sleeved with a third thread block, the third thread block The third threaded block is hinged with a hinged seat, and the end of the hinged seat away from the third threaded block is hinged with a second threaded block.

beneficial effect

To sum up, the beneficial effects of the present invention are as follows: the embodiment of the present invention is provided with a position adjustment assembly, and the setting of the position adjustment assembly realizes the adjustment of the height of the clamping assembly, which facilitates the clamping of the shell in different environments, and improves the The processing efficiency of the casing is improved, and the setting of the swing component realizes the clamping and limiting of casings of different shapes.

Description of drawings

Figure 1 is a schematic structural diagram of the invention.

Figure 2 is a schematic diagram of the structure of the base in the invention.

FIG. 3 is a schematic structural diagram of the clamping assembly in the invention.

FIG. 4 is a schematic view of the structure of the swing seat in the invention.

FIG. 5 is a schematic structural diagram of the swing assembly in the invention.

In the picture: 1-base, 2-hydraulic cylinder, 3-rack, 4-gear, 5-first screw, 6-first threaded block, 7-push rod, 8-lifting seat, 9-articulating seat, 10 -Limiting plate, 11-post, 12-stop plate, 13-mounting seat, 14-clamping assembly, 15-vertical positioning seat, 16-first runner, 17-second screw, 18-second Threaded block, 19-push plate, 20-connecting rod, 21-hinge slot, 22-working motor, 23-swing seat, 24-second runner, 25-third threaded block, 26-horizontal crossbar.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

As shown in Figures 1-2, in an embodiment of the present invention, a positioning fixture for processing a sewing machine head shell includes a base 1 and a column 11. A column 11 is arranged above the base 1, and a middle part of the column 11 is fixedly installed with a mounting bracket 11. The seat 13, the two sides of the mounting seat 13 are symmetrically provided with clamping components 14 for clamping the shell, the mounting seat 13 and the clamping components 14 are fixedly connected, and a position adjustment for adjusting the height of the column 11 is provided between the column 11 and the base 1 components;

The position adjustment assembly includes a hydraulic cylinder 2, a rack 3 and a gear 4. The hydraulic cylinder 2 is fixedly installed on the upper surface of the base 1, and the telescopic end of the hydraulic cylinder 2 is fixedly connected with a rack 3, and a gear 4 is arranged above the rack 3. , the gear 4 and the rack 3 are meshed for transmission, and one end of the gear 4 is rotatably connected to the base 1 through a bearing. The gear 4 is symmetrically provided with two sections of external threads with opposite directions of rotation and the same pitch. Each section of the external thread A first threaded block 6 is respectively sleeved on the upper part, a push rod 7 is hinged above the first threaded block 6, and an end of the push rod 7 away from the first threaded block 6 is hinged with a hinged seat 9, and the hinged seat 9 is fixedly mounted on the lift by bolts. On the seat 8, the lifting seat 8 is fixedly connected with the bottom of the column 11;

When it is necessary to adjust the height of the column 11 and the clamping assembly 14, open the hydraulic cylinder 2, the hydraulic cylinder 2 drives the rack 3 to rotate, the rack 3 drives the gear 4 to rotate, and the gear 4 drives the first screw 5 to rotate, so that the first screw 5 Drive the first threaded block 6 to move in the same direction or in different directions, the first threaded block 6 pushes the push rod 7 to move, and the push rod 7 drives the lift seat 8 and the column 11 to move up and down, thereby realizing the adjustment of the height of the column 11;

The top of the upright column 11 is fixedly installed with a stopper plate 12 for limiting the position of the mounting seat 13;

As shown in FIG. 3 , the clamping assembly 14 includes a vertical positioning seat 15 and a second screw rod 17 , a second screw rod 17 is longitudinally disposed in the vertical positioning seat 15 , and the side walls of the second screw rod 17 and the vertical positioning seat 15 rotate Connection, the top of the second screw 17 is fixedly installed with the first runner 16, the second screw 17 is symmetrically provided with two sections of external threads with opposite rotation directions and the same pitch, and each section of the external thread is sleeved with a third Two threaded blocks 18;

The second threaded block 18 is fixedly connected with a connecting rod 20, and one end of the connecting rod 20 away from the second threaded block 18 is connected with a swing assembly for clamping the housing;

As shown in FIGS. 4-5 , the swing assembly includes a hinge slot 21 and a working motor 22 . The working motor 22 is fixedly installed in the hinge slot 21 , the output end of the working motor 22 is fixedly connected to a swing seat 23 , and a swing seat 23 is provided below the swing seat 23 . The second runner 24, the second runner 24 and the swinging seat 23 are rotatably connected.

Example 2

As shown in FIGS. 4-5 , the swing assembly includes a hinge slot 21 and a working motor 22 . The working motor 22 is fixedly installed in the hinge slot 21 , the output end of the working motor 22 is fixedly connected to a swing seat 23 , and a swing seat 23 is provided below the swing seat 23 . The second runner 24, the second runner 24 and the swing seat 23 are rotatably connected;

The second runner 24 is symmetrically provided with two sections of external threads with opposite rotation directions and the same pitch, and each section of the external thread is sleeved with a third threaded block 25, the third threaded block 25 and the second runner. 24 are connected by threads, the third thread block 25 is hinged with a hinge seat 9, and the end of the hinge seat 9 away from the third thread block 25 is hinged with a second thread block 18;

When the housing needs to be clamped, the first runner 16 is rotated, and the first runner 16 drives the second screw 17 to rotate, so that the second screw 17 drives the second threaded block 18 to move in the same direction or in different directions, and the second threaded block 18 drives the swinging assembly to move, which is beneficial to the clamping and limiting of the casing;

The start of the working motor 22 can drive the swing seat 23 to swing, thereby realizing the clamping and limiting of different shapes of shells. The second runner 24 is rotated, and the second runner 24 drives the third threaded block 25 to move, and the third threaded block 25 drives The push plate 19 moves, so as to achieve stable clamping of the casing and avoid the casing from falling off.

Two horizontal cross bars 26 are symmetrically arranged on both sides of the mounting seat 13 , and a limit plate 10 for limiting the position of the casing is fixedly mounted on the horizontal cross bars 26 , and the limit plate 10 is made of rubber material.

To sum up, the working principle of the present invention is: when the casing needs to be clamped, the first runner 16 is rotated, and the first runner 16 drives the second screw 17 to rotate, so that the second screw 17 drives the second thread block 18 moves in the same direction or in different directions, and the second threaded block 18 drives the swing assembly to move, which is conducive to the clamping and limiting of the casing;

The embodiment of the present invention is provided with a position adjustment component. The setting of the position adjustment component realizes the adjustment of the height of the clamping component 14, which facilitates the clamping of the casing in different environments and improves the processing efficiency of the casing. At the same time, the setting of the swing component realizes The clamping limit for different shapes of shells.

For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and spirit of the invention, and are included in the invention described in the claims and the scope of equivalents thereof.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

A positioning fixture for processing a sewing machine head shell, comprising a base (1) and a column (11), a column (11) is arranged above the base (1), and a mounting seat (13) is fixedly installed in the middle of the column (11). , characterized in that the two sides of the mounting seat (13) are symmetrically provided with clamping assemblies (14) for clamping the shell, the mounting seat (13) and the clamping assembly (14) are fixedly connected, the upright (11) and the base ( 1) A position adjustment component for adjusting the height of the upright column (11) is arranged between them.
The positioning fixture for machining a sewing machine head shell according to claim 1, wherein the position adjustment component comprises a hydraulic cylinder (2), a rack (3) and a gear (4), and the hydraulic cylinder (2) is fixedly installed on the The upper surface of the base (1), and the telescopic end of the hydraulic cylinder (2) is fixedly connected with a rack (3), a gear (4), a gear (4) and a rack (3) are arranged above the rack (3) There is meshing transmission between the gears (4), and one end of the gear (4) is rotatably connected with the base (1) through a bearing. The gear (4) is symmetrically provided with two sections of external threads with opposite directions of rotation and the same pitch. A first threaded block (6) is respectively sleeved, a push rod (7) is hinged above the first threaded block (6), and a hinge seat (9) is hinged at one end of the push rod (7) away from the first threaded block (6). ), the hinge seat (9) is fixedly mounted on the lifting seat (8) by bolts, and the lifting seat (8) is fixedly connected with the bottom of the column (11).
The positioning fixture for machining a sewing machine head shell according to claim 2, characterized in that a stopper plate (12) for limiting the position of the mounting seat (13) is fixedly installed on the top of the upright column (11).
The positioning fixture for machining a sewing machine head shell according to any one of claims 1-3, characterized in that the clamping assembly (14) comprises a vertical positioning seat (15) and a second screw (17), and the vertical positioning A second screw (17) is longitudinally arranged in the seat (15), the second screw (17) is rotatably connected to the side wall of the vertical positioning seat (15), and the top of the second screw (17) is fixedly mounted with a first runner (16), the second screw (17) is symmetrically provided with two sections of external threads with opposite rotation directions and the same pitch, and each section of the external thread is sleeved with a second thread block (18).
The positioning fixture for machining a sewing machine head shell according to claim 4, wherein the second threaded block (18) is fixedly connected with a connecting rod (20), and the connecting rod (20) is away from the second threaded block (18) One end is connected with a swing assembly for clamping the shell.
The positioning fixture for machining a sewing machine head shell according to claim 5, characterized in that the swing assembly comprises a hinge groove (21) and a working motor (22), and the working motor (22) is fixedly installed in the hinge groove (21). , the output end of the working motor (22) is fixedly connected with a swing seat (23), a second wheel (24) is arranged below the swing seat (23), and the second wheel (24) and the swing seat (23) are rotatably connected .
The positioning fixture for machining a sewing machine head shell according to claim 6, characterized in that, two sections of external threads with opposite rotation directions and the same pitch are symmetrically arranged on the second runner (24), and each section of the A third threaded block (25) is respectively sleeved on the external thread, the third threaded block (25) and the second runner (24) are connected by a threaded connection, and the third threaded block (25) is hinged with a hinge seat (9) , a second threaded block (18) is hinged on one end of the hinge seat (9) away from the third threaded block (25).
The positioning fixture for machining a sewing machine head shell according to any one of claims 1-3, characterized in that two horizontal cross bars (26) are symmetrically arranged on both sides of the mounting seat (13), and the horizontal cross bars (26) ) is fixedly installed with a limiting plate (10) for limiting the housing.
The positioning fixture for processing the casing of a sewing machine head according to claim 8, characterized in that the limiting plate (10) is made of rubber material.