Machine head rapid positioning clamp for machine head of comprehensive feeding thick material sewing machine

Abstract

The utility model provides a machine head rapid positioning clamp of a comprehensive feeding thick material sewing machine head, and belongs to the technical field of sewing machines. The machine head clamp solves the problem that an existing machine head clamp is too low in positioning efficiency. The machine head rapid positioning clamp for the machine head of the comprehensive feeding thick material sewing machine comprises a workbench, the workbench is provided with a base for placing the machine head, the base is provided with a plurality of positioning pins capable of being embedded into the machine head, the workbench is provided with an installation column located on one side of the base, and the upper end of the installation column is provided with a supporting cross beam transversely arranged above the base. The workbench is provided with a supporting assembly connected with the end of the supporting cross beam on the other side of the base, a pressing lever is hinged to the supporting cross beam, the two ends of the pressing lever are arranged above the base in the longitudinal direction, the two ends of the pressing lever are each provided with at least one pressing block capable of being pressed on the machine head, and one end of the pressing lever is higher than the other end of the pressing lever. According to the machine head rapid positioning clamp of the comprehensive feeding thick material sewing machine head, the machine head positioning convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, and relates to a quick positioning fixture for the head of a comprehensive feeding thick material sewing machine head. Background Technique

[0002] Due to the different models and styles of sewing machines, the processing processes of sewing machines are also different. The existing sewing machine heads are usually cast into the head bodies, but the cast head bodies still need to be further processed and polished. Usually, holes need to be drilled in various places of the head body or fine processing and polishing are carried out on the surface. And the head is in a large irregular shape.

[0003] The existing fixtures for positioning the corresponding sewing machine head bodies, such as the Chinese patent application [Publication No.: CN103659348A], disclose a multi-station sewing machine head combination fixture, including a base provided with positioning holes, two sets of support blocks and adjusting rods staggered on the base for placing the sewing machine head, an adjusting rod is provided with a pressing block for fixing the sewing machine head, the pressing block is fixed by a limit nut connected to the adjusting rod, and a support rod connected to the base is arranged below the end of the pressing block.

[0004] The above structure presses multiple pressing blocks on the sewing machine head and fixes them through limit nuts, realizing the vertical limit of the sewing machine head. It adopts a multi-point positioning method and a single positioning and adjusting method for each positioning point. The pressing blocks required for positioning the head are more, resulting in more complex positioning of the head and reducing the positioning efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a quick positioning fixture for the head of a comprehensive feeding thick material sewing machine head in view of the above problems existing in the existing technology. The technical problem to be solved by the utility model is: how to solve the problem that the positioning efficiency of the existing head fixture is too low.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] A quick positioning fixture for the head of a comprehensive feeding thick material sewing machine head, including a workbench, a base for placing the head is arranged on the workbench, a plurality of positioning pins that can be embedded into the head are arranged on the base, and it is characterized in that an installation column is arranged on the workbench on one side of the base, the upper end of the installation column has a support cross beam horizontally arranged above the base, the workbench is provided with a support component connected to the end of the support cross beam on the other side of the base, a pressing lever is hinged on the support cross beam, both ends of the pressing lever are longitudinally arranged above the base, at least one pressing block capable of pressing on the head is arranged at both ends of the pressing lever, and one end of the pressing lever is higher than the other end.

[0008] Working principle: By placing the machine head on the base, holes or slots are provided on the machine head, and the positioning pins are embedded in the corresponding holes or slots to achieve circumferential positioning of the machine head. The support crossbeam is horizontally arranged above the base, and both ends of the support crossbeam are respectively connected to the mounting column and the support assembly. A pressing lever is hinged on the support crossbeam. The pressing lever is longitudinally arranged above the base, and the pressing blocks on the pressing lever can stably press on both ends of the machine head. The pressing lever presses the pressing blocks on the machine head through its own gravity, achieving vertical fixation of the machine head. Since the surface of the machine head has high and low surfaces, the pressing lever is set higher at one end and lower at the other end due to the height difference of the high and low surfaces. During the pressing process, the higher end is lifted by the surface of the machine head and presses on the surface of the machine head through its own gravity. At this time, the other end presses on the surface of the machine head through its own gravity under the swing of the pressing lever, thus achieving vertical positioning of the machine head. Through the positioning of the support crossbeam, multiple pressing blocks on the pressing lever can be simultaneously pressed on the machine head, improving the convenience of machine head positioning.

[0009] In the above-mentioned quick positioning fixture for the machine head of the integrated feeding thick material sewing machine, a pressing beam is hinged at the end of the pressing lever, and both ends of the pressing beam are provided with the above-mentioned pressing blocks.

[0010] By hinging the pressing beam on the pressing lever, when there are high and low surfaces at one end of the machine head, it can also be automatically adjusted through the rotation of the hinge point of the pressing beam, so that the pressing blocks can quickly and stably press on the machine head, achieving quick positioning of multiple points on the machine head.

[0011] In the above-mentioned quick positioning fixture for the machine head of the integrated feeding thick material sewing machine, the support assembly includes a support base arranged on the workbench and a support rod hinged on the support base. An installation notch is provided at one end of the support crossbeam, and a locking nut is threadedly connected to the end of the support rod. The support rod can be embedded in the installation notch and is pressed on the upper end surface of the support crossbeam through the locking nut.

[0012] The support rod swings to be embedded in the installation notch and is then pressed on the upper end surface of the support crossbeam through the locking nut, achieving the support of this end of the support crossbeam and improving the stability and convenience of using the positioning fixture.

[0013] In the above-mentioned quick positioning fixture for the machine head of the integrated feeding thick material sewing machine, the support crossbeam includes a support part horizontally arranged above the base. One end of the support part far from the support assembly bends downward to form a connecting part, and the connecting part is hinged to the mounting column. There is a support plate between the connecting part and the support part.

[0014] Through the setting of the support plate, the connection strength between the connecting part and the support part is higher, improving the structural strength of the end of the support crossbeam provided with the connecting part.

[0015] In the head quick positioning fixture of the above-mentioned integrated feeding heavy-duty sewing machine head, a limiting plate is connected to one side of the mounting post close to the base, and the limiting plate is located on one side of the connecting part.

[0016] The arrangement of the limiting plate enables pre-positioning to be achieved by abutting against the limiting plate when the connecting part rotates along the mounting post. During installation, the support cross beam can be adjusted to a horizontal setting more quickly, and it also avoids the support cross beam directly falling on the machine head during positioning, improving the stability and convenience of the positioning of the support cross beam.

[0017] In the head quick positioning fixture of the above-mentioned integrated feeding heavy-duty sewing machine head, a holding handle is connected to the support cross beam near the mounting notch. One end of the holding handle is inserted into the side wall of the support cross beam, and the other end is located outside the support cross beam.

[0018] The arrangement of the holding handle facilitates the staff to hold, making the connection between the support cross beam and the support assembly more convenient.

[0019] Compared with the prior art, the head quick positioning fixture of the present integrated feeding heavy-duty sewing machine head has the following advantages: Since there are high and low surfaces on the head surface, one end of the pressing lever is set higher and the other end is set lower due to the height difference of the high and low surfaces. During the pressing process, the higher end is lifted by the head surface and presses on the head surface by its own gravity. At this time, the other end presses on the head surface by its own gravity under the swing of the pressing lever, thus realizing the vertical positioning of the head. Through the positioning of the support cross beam, multiple pressing blocks on the pressing lever can be simultaneously pressed on the head, improving the convenience of the head positioning. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of assembling and positioning the head in the present utility model.

[0021] Figure 2 It is a schematic structural diagram of the present utility model.

[0022] Figure 3 It is a partial schematic structural diagram of the present utility model.

[0023] In the figure, 1, workbench; 2, base; 21, positioning pin; 3, mounting post; 31, limiting plate; 4, support cross beam; 41, mounting notch; 42, support part; 43, connecting part; 44, support plate; 5, support assembly; 51, support seat; 52, support rod; 52a, locking nut; 6, pressing lever; 61, pressing block; 62, pressing beam; 7, head; 8, holding handle. Detailed Description of the Preferred Embodiments

[0024] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0025] As Figure 1 shown, the quick positioning fixture for the head of the integrated feeding heavy-duty sewing machine head includes a workbench 1, on which there is a base 2 for placing the head 7, and on the base 2 there are a plurality of positioning pins 21 that can be inserted into the head 7.

[0026] Specifically, as Figures 1-3 shown, on the workbench 1 there is a mounting post 3 on one side of the base 2. The upper end of the mounting post 3 has a support cross beam 4 horizontally arranged above the base 2. On the other side of the workbench 1 relative to the base 2, there is a support assembly 5 connected to the end of the support cross beam 4. A pressing lever 6 is hinged on the support cross beam 4. The two ends of the pressing lever 6 are longitudinally arranged above the base 2. At both ends of the pressing lever 6, there are pressing beams 62 hinged. At both ends of the pressing beam 62, there is at least one pressing block 61 that can press on the head 7. One end of the pressing lever 6 is higher than the other end.

[0027] Working principle: By placing the head 7 on the base 2, holes or grooves are provided on the head 7, and the positioning pins 21 are inserted into the corresponding holes or grooves to achieve circumferential positioning of the head 7. The support cross beam 4 is horizontally arranged above the base 2. The two ends of the support cross beam 4 are respectively connected to the mounting post 3 and the support assembly 5. A pressing lever 6 is hinged on the support cross beam 4. The pressing lever 6 is longitudinally arranged above the base 2. The pressing blocks 61 on the pressing lever 6 can stably press on both ends of the head 7. The pressing lever 6 presses the pressing blocks 61 on the head 7 by its own gravity, achieving vertical fixation of the head 7. Since the surface of the head 7 has high and low surfaces, due to the height difference of the high and low surfaces, one end of the pressing lever 6 is set higher and the other end is set lower. During the pressing process, the higher end is lifted by the surface of the head 7 and presses on the surface of the head 7 by its own gravity. At this time, the other end presses on the surface of the head 7 by its own gravity under the swing of the pressing lever 6, thus achieving vertical positioning of the head 7. Through the positioning of the support cross beam 4, multiple pressing blocks 61 on the pressing lever 6 can press on the head 7 simultaneously, improving the convenience of positioning the head 7.

[0028] As Figure 1 and Figure 2 shown, the support assembly 5 includes a support base 51 arranged on the workbench 1 and a support rod 52 hinged on the support base 51. One end of the support cross beam 4 is provided with a mounting notch 41. The end of the support rod 52 is threadedly connected with a locking nut 52a. The support rod 52 can be inserted into the mounting notch 41 and is pressed on the upper end surface of the support cross beam 4 by the locking nut 52a.

[0029] As Figure 2 andFigure 3 As shown, the support crossbeam 4 includes a support portion 42 horizontally disposed above the base 2, and the support portion 42 has a connecting portion 43 that bends downward at one end away from the support assembly 5. The connecting portion 43 is hinged to the mounting post 3. There is a support plate 44 between the connecting portion 43 and the support portion 42. A limiting plate 31 is connected to one side of the mounting post 3 close to the base 2. The limiting plate 31 is located on one side of the connecting portion 43. A holding handle 8 is connected near the mounting notch 41 of the support crossbeam 4. One end of the holding handle 8 is inserted into the side wall of the support crossbeam 4, and the other end is located outside the support crossbeam 4.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A quick positioning fixture for the head of a compound feed heavy-duty sewing machine, comprising a workbench (1), the workbench (1) being provided with a base (2) on which a head (7) can be placed, the base (2) being provided with a plurality of positioning pins (21) which can be embedded in the head (7), characterized in that: The workbench (1) is provided with a mounting column (3) located on one side of the base (2); the upper end of the mounting column (3) has a supporting beam (4) arranged transversely above the base (2); the workbench (1) is provided with a supporting assembly (5) connected to the end of the supporting beam (4) on the other side of the base (2); a clamping lever (6) is hinged on the supporting beam (4); both ends of the clamping lever (6) are arranged longitudinally above the base (2); both ends of the clamping lever (6) have at least one clamping block (61) that can be clamped on the machine head (7); one end of the clamping lever (6) is higher than the other end.

2. The head quick positioning fixture of the head of the compound feeding heavy-duty sewing machine according to claim 1 is characterized in that: A pressing beam (62) is hingedly connected to the end of the pressing lever (6), and both ends of the pressing beam (62) are provided with the above-mentioned pressing blocks (61).

3. The head quick positioning fixture of the head of the compound feeding thick material sewing machine according to claim 1 or 2, characterized in that: The support assembly (5) comprises a support seat (51) arranged on the workbench (1) and a support rod (52) hinged on the support seat (51); one end of the support beam (4) is provided with a mounting notch (41); the end of the support rod (52) is threadedly connected with a locking nut (52a); the support rod (52) can be embedded in the mounting notch (41) and pressed against the upper end surface of the support beam (4) through the locking nut (52a).

4. The head quick positioning fixture of the head of the compound feeding thick material sewing machine according to claim 1 or 2, characterized in that: The supporting crossbeam (4) comprises a supporting portion (42) arranged transversely above the base (2); one end of the supporting portion (42) away from the supporting assembly (5) is bent downward to form a connecting portion (43); the connecting portion (43) is hinged to the mounting column (3); and a supporting plate (44) is provided between the connecting portion (43) and the supporting portion (42).

5. The head quick positioning fixture of the head of the compound feeding heavy-duty sewing machine according to claim 4 is characterized in that: A side of the mounting column (3) close to the base (2) is connected to a limiting plate (31), and the limiting plate (31) is located on one side of the connecting portion (43).

6. The head quick positioning fixture of the head of the compound feeding heavy-duty sewing machine according to claim 3, characterized in that: A gripping handle (8) is connected to the support beam (4) near the installation notch (41); one end of the gripping handle (8) is inserted into the side wall of the support beam (4), and the other end is located outside the support beam (4).

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