Positioning and milling clamp for rotating shuttle race of sewing machine

Abstract

The utility model discloses a sewing machine rotating shuttle race positioning and milling clamp which comprises an adjusting base, the top end of the adjusting base is provided with a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are symmetrically distributed, the adjusting base comprises a base, the interior of the base is fixedly connected with a U-shaped support, and the U-shaped support is fixedly connected with the adjusting base. The front end of the U-shaped support is rotationally connected with a lead screw, one end of the lead screw penetrates through the right end of the U-shaped support and is fixedly connected with a motor, the rear end of the U-shaped support is fixedly connected with a sliding rod, the sliding rod and the lead screw are symmetrically distributed, the middle of the sliding rod and the middle of the lead screw are connected with a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are in threaded connection with the lead screw. According to the technical scheme, a U-shaped support is arranged in a base, a lead screw and a sliding rod are installed on the U-shaped support, and a motor drives the lead screw to rotate, so that the purpose that a first clamping plate and a second clamping plate can move on the lead screw and the sliding rod, and the distance between the first clamping plate and the second clamping plate is adjusted is achieved.

Description

Technical Field

[0001] The utility model relates to the field of processing fixtures, in particular to a positioning and milling processing fixture for a rotary hook of a sewing machine. Background Art

[0002] The sewing machine rotary hook shuttle bed positioning milling fixture is a special fixture used in the sewing machine rotary hook shuttle bed processing process. Its main function is to accurately position the rotary hook shuttle bed blank during milling processing, ensure its position accuracy on the processing equipment (such as a milling machine), and enable the milling tool to accurately process the shuttle bed according to the predetermined processing technology, thereby ensuring the dimensional accuracy and shape accuracy of the rotary hook shuttle bed.

[0003] China's published patent application number: CN201921809524.X, provides a bobbin case tail grinding tool. This solution can fix multiple bobbin cases by setting multiple grooves on the bobbin case clamp, so that the machine tool can continuously process when the bobbin case clamp rotates, eliminating the tedious processing of a single bobbin case, and is convenient and efficient. However, the sizes of the rotary hooks are different. The tool mentioned in the above patent is not convenient to adjust according to the size of the rotary hook when clamping the rotary hook, which is not conducive to adapting to rotary hooks of various specifications.

[0004] Therefore, we propose a positioning and milling fixture for the rotary hook of a sewing machine. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present utility model is to provide a sewing machine shuttle hook positioning milling fixture, by arranging a U-shaped bracket in the base, and installing a screw rod and a slide rod thereon, and a motor driving the screw rod to rotate, so that the first clamping plate and the second clamping plate can move on the screw rod and the slide rod, thereby adjusting the distance between the two.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The first and second clamping plates are connected to each other with a screw thread on one end of the U-shaped bracket and a screw thread on the other end of the U-shaped bracket is fixedly connected to the base.

[0008] By setting a U-shaped bracket in the base, installing a screw rod and a slide rod on it, and using a motor to drive the screw rod to rotate, the first clamping plate and the second clamping plate can move on the screw rod and the slide rod, thereby adjusting the distance between them.

[0009] Furthermore, the first clamping plate includes a first vertical plate, the first vertical plate is installed in the middle of the slide rod and the screw rod, the first vertical plate is threadedly connected to the screw rod, and the first vertical plate is slidably connected to the slide rod;

[0010] By installing the first vertical plate in the middle of the slide rod and the screw rod, and being threadedly connected to the screw rod and slidingly connected to the slide rod, the purpose of the first vertical plate being able to move stably on the adjustment base is achieved.

[0011] Furthermore, the left end of the top of the first vertical plate is fixedly connected to a housing, the interior of the housing is fixedly connected to a motor, the transmission end of the motor is fixedly connected to a worm, the rear end of the worm is engaged with a worm wheel, and the worm wheel is rotatably connected to the housing;

[0012] By arranging a motor in the housing at the left end of the top of the first vertical plate, and connecting the transmission end of the motor to the worm, the worm is engaged with the worm wheel, so as to achieve the purpose of using the motor to drive the worm to rotate, and then drive the worm wheel to rotate.

[0013] Furthermore, the right end of the worm wheel is fixedly connected to a rotating shaft, an end of the rotating shaft away from the worm wheel passes through the right end of the first vertical plate and is fixedly connected to an anti-slip chuck, and the rotating shaft is rotatably connected to the first vertical plate;

[0014] By connecting the worm gear to the rotating shaft, the rotating shaft passes through the first vertical plate and is connected to the anti-skid chuck, and the rotating shaft is rotatably connected to the first vertical plate, so that the purpose of the worm gear rotating to drive the rotating shaft and the anti-skid chuck to rotate is achieved.

[0015] Furthermore, the anti-slip chuck includes a circular disc, the circular disc is fixedly connected to the rotating shaft, and the right end of the anti-slip chuck is fixedly connected to a plurality of convex points arranged at equal distances;

[0016] By providing a plurality of equally spaced convex points on the right end of the anti-slip chuck, the friction between the anti-slip chuck and the clamped object is increased to prevent slipping.

[0017] Furthermore, the second clamping plate includes a second vertical plate, the second vertical plate has the same structure as the first vertical plate, and the second vertical plate is symmetrically distributed with the first vertical plate;

[0018] By making the second vertical plate consistent with the first vertical plate in structure and symmetrically distributed, the second vertical plate cooperates with the first clamping plate to achieve the purpose of stably clamping the rotary hook.

[0019] Furthermore, the top end of the second vertical plate is rotatably connected to a shaft column, and the right end of the shaft column passes through the right end of the shaft column and is fixedly connected to a limiting block;

[0020] By rotating the connecting shaft column at the top of the second vertical plate and setting a limit block at the right end of the shaft column, the shaft column can be limited to prevent it from excessive movement.

[0021] Furthermore, the left end of the shaft column passes through the left end of the shaft column and is fixedly connected to an auxiliary chuck, the auxiliary chuck has the same structure as the anti-slip chuck, and the auxiliary chuck and the anti-slip chuck are symmetrically distributed;

[0022] By connecting the auxiliary chuck to the shaft column and making it consistent with the anti-slip chuck structure and symmetrically distributed, the auxiliary chuck cooperates with the anti-slip chuck to further enhance the clamping stability of the rotary hook.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. The distance between the first clamping plate and the second clamping plate can be adjusted by adjusting the base, so that the clamping distance can be adjusted according to the size of the rotary hook, which is convenient for adapting to the clamping requirements of various specifications of rotary hooks;

[0025] 2. The rotary hook is clamped by the cooperation between the first clamping plate and the second clamping plate. At the same time, the first clamping plate can drive the clamped rotary hook to rotate, which is convenient for the user to process the rotary hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0027] Figure 2 is a schematic structural diagram of a cross-section of the adjustment base in this embodiment;

[0028] Figure 3 This is a schematic diagram of the overall split structure in this embodiment;

[0029] Figure 4 This is a schematic structural diagram of the split first clamping plate in this embodiment;

[0030] Figure 5 It is a schematic structural diagram of the split second clamping plate in this embodiment.

[0031] In the figure, 1. adjustment base; 2. first clamping plate; 3. second clamping plate; 101. base; 102. U-shaped bracket; 103. screw rod; 104. slide rod; 105. motor; 201. first vertical plate; 202. housing; 203. motor; 204. worm; 205. rotating shaft; 206. worm gear; 207. anti-slip chuck; 301. second vertical plate; 302. shaft column; 303. limit block; 304. auxiliary chuck. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings.

[0033] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0034] Reference Figure 1-Figure 5 As shown, a positioning and milling fixture for a rotary hook of a sewing machine in a preferred embodiment of the present invention is provided, comprising an adjusting base 1, a first clamping plate 2 and a second clamping plate 3 are installed on the top of the adjusting base 1, the first clamping plate 2 and the second clamping plate 3 are symmetrically distributed, the adjusting base 1 comprises a base 101, a U-shaped bracket 102 is fixedly connected to the interior of the base 101, a screw rod 103 is rotatably connected to the front end of the U-shaped bracket 102, one end of the screw rod 103 passes through the right end of the U-shaped bracket 102 and is fixedly connected to a motor 105, a sliding rod 104 is fixedly connected to the rear end of the U-shaped bracket 102, the sliding rod 104 and the screw rod 103 are symmetrically distributed, the middle parts of the sliding rod 104 and the screw rod 103 are connected to the first clamping plate 2 and the second clamping plate 3, the first clamping plate 2 and the second clamping plate 3 are threadedly connected to the screw rod 103, and the first clamping plate 2 and the second clamping plate 3 are slidably connected to the sliding rod 104;

[0035] By setting a U-shaped bracket 102 in the base 101, installing a screw rod 103 and a slide rod 104 thereon, and the motor 105 driving the screw rod 103 to rotate, the first clamping plate 2 and the second clamping plate 3 can move on the screw rod 103 and the slide rod 104, thereby adjusting the distance between them.

[0036] Reference Figure 4 As shown, the first clamping plate 2 includes a first vertical plate 201, which is installed in the middle of the slide rod 104 and the screw rod 103, and the first vertical plate 201 is threadedly connected to the screw rod 103, and the first vertical plate 201 is slidably connected to the slide rod 104;

[0037] By installing the first vertical plate 201 in the middle of the slide rod 104 and the screw rod 103 and being threadedly connected to the screw rod 103 and slidingly connected to the slide rod 104, the first vertical plate 201 can be stably moved on the adjustment base 1.

[0038] The left end of the top of the first vertical plate 201 is fixedly connected to the housing 202, and the interior of the housing 202 is fixedly connected to the motor 203. The transmission end of the motor 203 is fixedly connected to the worm 204. The rear end of the worm 204 is engaged with a worm gear 206, and the worm gear 206 is rotatably connected to the housing 202.

[0039] By setting a motor 203 in the housing 202 at the top left end of the first vertical plate 201, and connecting the transmission end of the motor 203 to the worm 204, the worm 204 is engaged with the worm wheel 206, so as to achieve the purpose of using the motor 203 to drive the worm 204 to rotate, and then drive the worm wheel 206 to rotate.

[0040] The right end of the worm gear 206 is fixedly connected to the rotating shaft 205. The end of the rotating shaft 205 away from the worm gear 206 passes through the right end of the first vertical plate 201 and is fixedly connected to the anti-slip chuck 207. The rotating shaft 205 is rotatably connected to the first vertical plate 201.

[0041] By connecting the worm gear 206 to the rotating shaft 205, the rotating shaft 205 passes through the first vertical plate 201 and is connected to the anti-slip chuck 207, and the rotating shaft 205 is rotatably connected to the first vertical plate 201, so that the purpose of the worm gear 206 rotating to drive the rotating shaft 205 and the anti-slip chuck 207 to rotate is achieved.

[0042] The anti-skid chuck 207 includes a circular disc, which is fixedly connected to the rotating shaft 205. The right end of the anti-skid chuck 207 is fixedly connected to a plurality of equidistantly arranged protrusions.

[0043] By providing a plurality of equidistantly arranged protrusions on the right end of the anti-slip chuck 207 , the friction between the anti-slip chuck 207 and the clamped object is increased to prevent slipping.

[0044] Reference Figure 5 As shown, the second clamping plate 3 includes a second vertical plate 301 , the second vertical plate 301 has the same structure as the first vertical plate 201 , and the second vertical plate 301 and the first vertical plate 201 are symmetrically distributed;

[0045] By making the second vertical plate 301 consistent in structure with the first vertical plate 201 and symmetrically distributed, the second vertical plate 301 cooperates with the first clamping plate 2 to achieve the purpose of stably clamping the rotary hook.

[0046] The top end of the second vertical plate 301 is rotatably connected to a shaft column 302 , and the right end of the shaft column 302 passes through the right end of the shaft column 302 and is fixedly connected to a limit block 303 ;

[0047] By rotating the connecting shaft column 302 at the top of the second vertical plate 301 and providing a limit block 303 at the right end of the shaft column 302, the shaft column 302 is limited to prevent it from excessive movement.

[0048] The left end of the shaft column 302 passes through the left end of the shaft column 302 and is fixedly connected to the auxiliary chuck 304. The auxiliary chuck 304 has the same structure as the anti-slip chuck 207, and the auxiliary chuck 304 and the anti-slip chuck 207 are symmetrically distributed.

[0049] By connecting the auxiliary chuck 304 to the shaft column 302 and making it consistent in structure and symmetrically distributed with the anti-slip chuck 207, the auxiliary chuck 304 cooperates with the anti-slip chuck 207 to further enhance the clamping stability of the rotary hook.

[0050] Specific implementation process: First, start the motor 105, and the motor 105 drives the screw rod 103 to rotate. Since the first clamping plate 2 and the second clamping plate 3 are threadedly connected to the screw rod 103 and are slidably connected to the slide rod 104, the rotation of the screw rod 103 will cause the first clamping plate 2 and the second clamping plate 3 to move on the slide rod 104 and the screw rod 103, thereby adjusting the distance between the two. According to the size of the rotary hook, after the distance between the first clamping plate 2 and the second clamping plate 3 is adjusted to a suitable position, the rotary hook is placed between the anti-slip chuck 207 and the auxiliary chuck 304, and then start the motor 105 again to bring the first clamping plate 2 and the second clamping plate 3 closer to clamp the rotary hook. During the processing, if the rotary hook needs to be rotated, the motor 203 can be started, and the motor 203 drives the worm 204 to rotate. The worm 204 engages with the worm wheel 206, thereby driving the worm wheel 206 to rotate. The worm wheel 206 The rotation drives the rotating shaft 205 and the anti-skid chuck 207 to rotate. Since the rotary hook is clamped between the anti-skid chuck 207 and the auxiliary chuck 304, the rotation of the anti-skid chuck 207 will drive the rotary hook to rotate together, making it convenient for the user to process the rotary hook at different angles.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and milling fixture for a rotary hook of a sewing machine, characterized by: It comprises an adjustment base (1), a first clamping plate (2) and a second clamping plate (3) being mounted on the top of the adjustment base (1), wherein the first clamping plate (2) and the second clamping plate (3) are symmetrically distributed; The adjustment base (1) includes a base (101), the interior of the base (101) is fixedly connected to a U-shaped bracket (102), the front end of the U-shaped bracket (102) is rotatably connected to a screw rod (103), one end of the screw rod (103) passes through the right end of the U-shaped bracket (102) and is fixedly connected to a motor (105), the rear end of the U-shaped bracket (102) is fixedly connected to a slide rod (104), the slide rod (104) and the screw rod (103) are symmetrically distributed, the middle parts of the slide rod (104) and the screw rod (103) are connected to the first clamping plate (2) and the second clamping plate (3), the first clamping plate (2) and the second clamping plate (3) are threadedly connected to the screw rod (103), and the first clamping plate (2) and the second clamping plate (3) are slidably connected to the slide rod (104).

2. A positioning and milling fixture for a rotary hook of a sewing machine according to claim 1, characterized in that: The first clamping plate (2) comprises a first vertical plate (201), the first vertical plate (201) is installed in the middle of the sliding rod (104) and the screw rod (103), the first vertical plate (201) is threadedly connected to the screw rod (103), and the first vertical plate (201) is slidably connected to the sliding rod (104).

3. The positioning and milling fixture for the rotary hook of a sewing machine according to claim 2, characterized in that: The left end of the top of the first vertical plate (201) is fixedly connected to a housing (202), the interior of the housing (202) is fixedly connected to a motor (203), the transmission end of the motor (203) is fixedly connected to a worm (204), the rear end of the worm (204) is meshed with a worm wheel (206), and the worm wheel (206) is rotationally connected to the housing (202).

4. The positioning and milling fixture for the rotary hook of a sewing machine according to claim 3, characterized in that: The right end of the worm wheel (206) is fixedly connected to a rotating shaft (205), one end of the rotating shaft (205) away from the worm wheel (206) passes through the right end of the first vertical plate (201) and is fixedly connected to an anti-slip chuck (207), and the rotating shaft (205) is rotatably connected to the first vertical plate (201).

5. The positioning and milling fixture for the rotary hook of a sewing machine according to claim 4, characterized in that: The anti-skid chuck (207) comprises a circular disc, the circular disc is fixedly connected to the rotating shaft (205), and the right end of the anti-skid chuck (207) is fixedly connected to a plurality of convex points arranged at equal distances.

6. The positioning and milling fixture for the rotary hook of a sewing machine according to claim 1, characterized in that: The second clamping plate (3) comprises a second vertical plate (301), the second vertical plate (301) has the same structure as the first vertical plate (201), and the second vertical plate (301) and the first vertical plate (201) are symmetrically distributed.

7. A positioning and milling fixture for a rotary hook of a sewing machine according to claim 6, characterized in that: The top end of the second vertical plate (301) is rotatably connected to a shaft column (302), and the right end of the shaft column (302) passes through the right end of the shaft column (302) and is fixedly connected to a limiting block (303).

8. The positioning and milling fixture for the rotary hook of a sewing machine according to claim 7, characterized in that: The left end of the shaft column (302) passes through the left end of the shaft column (302) and is fixedly connected to an auxiliary chuck (304). The auxiliary chuck (304) has the same structure as the anti-slip chuck (207). The auxiliary chuck (304) and the anti-slip chuck (207) are symmetrically distributed.

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