Sewing machine blank multi-specification self-adaptive positioning clamp

Abstract

The utility model belongs to the technical field of sewing machine blank processing, and particularly relates to a sewing machine blank multi-specification self-adaptive positioning clamp which comprises a clamping table, a first installation frame installed on the surface of the bottom of the clamping table, and a second two-way lead screw in threaded connection with the surface of the transmission end of a second motor. The surface of the second bidirectional lead screw is in threaded connection with a clamping plate, the bottom of the clamping plate abuts against the top of a clamping table, a pressure sensor assembly is arranged on the surface of the inner wall of the clamping plate, and the surface of the clamping table is in threaded connection with a containing disc. According to the automatic clamping and positioning device for the sewing machine blank, the clamping table, the first mounting frame, the first motor, the first two-way lead screw, the first clamping frame, the second mounting frame, the second motor, the second two-way lead screw and the clamping plate are matched with one another, so that the positions of various sewing machine blanks needing to be machined are automatically clamped and positioned, and the clamping efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine blank processing technical field, more specifically relates to a kind of sewing machine blank multi-specification self-adapting positioning fixture. BACKGROUND

[0002] Sewing machine blank refers to the workpiece that has not been subjected to precision machining, retains the basic shape and size of raw material, but has initially possessed the general outline of sewing machine parts. It is usually made of metal materials (such as cast iron, aluminum alloy, etc.) by casting, forging and other processes;

[0003] In the current machining process of sewing machine blank parts, the positioning and fixing of blank parts mainly rely on manual adjustment of positioning fixture. The efficiency of manual operation cannot be guaranteed. Workers need to adjust each fixture in turn to adapt to sewing machine blanks of different specifications. This process involves tedious action steps, from observing blank size, judging fixture adjustment direction, to actually rotating adjustment knob, tightening fixture parts, etc. Each step needs to consume time, especially when facing a large number of blanks of different specifications, the problem of low operation efficiency is increasingly prominent. Secondly, manual adjustment is prone to improper clamping force. Since the worker's judgment of clamping force is completely based on personal experience and hand feeling, there is a lack of precise quantitative standard, so in the operation process, there are often situations of clamping too tight or too loose. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of sewing machine blank multi-specification self-adapting positioning fixture, to solve the problem in the prior art that in the current machining process of sewing machine blank parts, the positioning and fixing of blank parts mainly rely on manual adjustment of positioning fixture. The efficiency of manual operation cannot be guaranteed. Workers need to adjust each fixture in turn to adapt to sewing machine blanks of different specifications. This process involves tedious action steps, from observing blank size, judging fixture adjustment direction, to actually rotating adjustment knob, tightening fixture parts, etc. Each step needs to consume time, especially when facing a large number of blanks of different specifications, the problem of low operation efficiency is increasingly prominent. Secondly, manual adjustment is prone to improper clamping force. Since the worker's judgment of clamping force is completely based on personal experience and hand feeling, there is a lack of precise quantitative standard, so in the operation process, there are often situations of clamping too tight or too loose.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of sewing machine blank multi-specification self-adapting positioning fixture, comprising: clamping table, first mounting bracket is installed on the bottom surface of the clamping table, first motor is installed on the side of the first mounting bracket, the transmission end surface of the first motor is threadedly connected with first bidirectional screw rod, the other side of the first bidirectional screw rod is sleeved with the bearing surface of the inner wall of first mounting bracket, the surface of the first bidirectional screw rod is threadedly connected with first clamping frame, the bottom of the transverse end of the first clamping frame is slidably connected with the surface of clamping table, second mounting bracket is equipped on the top surface of the first clamping frame, second motor is installed on the side of the second mounting bracket, the transmission end surface of the second motor is threadedly connected with second bidirectional screw rod, the other end surface of the second bidirectional screw rod is sleeved with the bearing surface of the inner wall of second mounting bracket, the surface of the second bidirectional screw rod is threadedly connected with clamping plate, the bottom of the clamping plate is abutted with the top of clamping table, pressure sensor assembly is equipped on the inner wall surface of the clamping plate, and placement disc is threadedly connected with the surface of clamping table.

[0006] As a kind of sewing machine blank multi-specification self-adapting positioning fixture of the utility model, rectangular through slot is longitudinally formed on the surface of the clamping table, and the shape and size of the through slot are adapted to the longitudinal end of the first clamping frame.

[0007] As a kind of sewing machine blank multi-specification self-adapting positioning fixture of the utility model, rectangular recess is formed on the top of the first clamping frame, and the shape and size of the recess are adapted to the bottom lug of the second mounting bracket.

[0008] As a kind of sewing machine blank multi-specification self-adapting positioning fixture of the utility model, rectangular and circular recesses are respectively formed on the top of the placement disc, and circular recess is equipped in the inner ring of rectangular recess.

[0009] As a kind of sewing machine blank multi-specification self-adapting positioning fixture of the utility model, the clamping plate is "L" type integrated structure, and a group of pressure sensor assemblies are respectively equipped in the "L" type inner wall of the clamping plate.

[0010] As a kind of sewing machine blank multi-specification self-adapting positioning fixture of the utility model, the clamping table, first clamping frame, second mounting bracket and clamping plate form sliding connection structure.

[0011] Compared with prior art, the utility model has the beneficial effects that:

[0012] Through the mutual cooperation between clamping table, first mounting bracket, first motor, first bidirectional screw rod, first clamping frame, second mounting bracket, second motor, second bidirectional screw rod and clamping plate, the position of various sewing machine blank parts needing to be processed is automatically clamped and positioned to improve clamping efficiency.

[0013] Meanwhile, the clamping tightness of the clamped sewing machine blank is monitored and adjusted through the cooperation between the second mounting frame, the second motor, the second bidirectional screw rod, the clamping plate, the pressure sensor assembly and the placing disc, so that the situation of over-tightening or over-loosening is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, which are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation to the present application. In the drawings:

[0015] Figure 1 It is a front view structural schematic diagram of the present application;

[0016] Figure 2 It is a top view structural schematic diagram of the present application;

[0017] Figure 3 It is a bottom view structural schematic diagram of the present application;

[0018] Figure 4 It is a first clamping frame and second mounting frame partial enlarged structural schematic diagram of the present application;

[0019] Figure 5 It is a clamping plate partial enlarged structural schematic diagram of the present application.

[0020] In the drawings: 1, clamping table; 2, first mounting frame; 3, first motor; 4, first bidirectional screw rod; 5, first clamping frame; 6, second mounting frame; 7, second motor; 8, second bidirectional screw rod; 9, clamping plate; 10, pressure sensor assembly; 11, placing disc. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-5The utility model provides following technical scheme: a kind of sewing machine blank multi-specification self-adapting positioning fixture, comprising: clamping table 1, first mounting bracket 2 is installed on the bottom surface of clamping table 1, first motor 3 is installed in one side of first mounting bracket 2, first motor 3 transmission end surface is threadedly connected with first bidirectional screw rod 4, first bidirectional screw rod 4 other side is sleeved in the bearing surface of first mounting bracket 2 inner wall, first bidirectional screw rod 4 surface is threadedly connected with first clamping frame 5, first clamping frame 5 transverse end bottom is slidably connected to the surface of clamping table 1, second mounting bracket 6 is equipped on the top surface of first clamping frame 5, second motor 7 is installed in one side of second mounting bracket 6, second motor 7 transmission end surface is threadedly connected with second bidirectional screw rod 8, second bidirectional screw rod 8 other end surface is sleeved in the bearing surface of second mounting bracket 6 inner wall, second bidirectional screw rod 8 surface is threadedly connected with clamping plate 9, clamping plate 9 bottom is abutted to the top of clamping table 1, pressure sensor assembly 10 is equipped on the inner wall surface of clamping plate 9, and placing disc 11 is threadedly connected on the surface of clamping table 1.

[0023] Preferably, a rectangular through groove is longitudinally formed on the surface of the clamping table 1, and the shape and size of the through groove are adapted to the longitudinal end of the first clamping frame 5.

[0024] In specific use, the rectangular through groove formed on the top of the clamping table 1 is used to facilitate the movement of the first clamping frame 5 on the surface of the first bidirectional screw rod 4.

[0025] Preferably, a rectangular recess is formed on the top of the first clamping frame 5, and the shape and size of the recess are adapted to the protrusion at the bottom of the second mounting bracket 6.

[0026] In specific use, the rectangular recess formed on the top of the first clamping frame 5 is used to facilitate the positioning of the second mounting bracket 6 thereon.

[0027] Preferably, rectangular and circular recesses are respectively formed on the top of the placing disc 11, and the circular recess is arranged in the inner circle of the rectangular recess.

[0028] In specific use, the recesses of different shapes and depths formed on the top of the placing disc 11 are used to facilitate the placement of sewing machine blank pieces of different shapes, so as to avoid the movement of the sewing machine blank pieces on the top of the clamping table 1.

[0029] Preferably, the clamping plate 9 is an "L"-shaped integrated structure, and a group of pressure sensor assemblies 10 are respectively arranged on the inner walls of the "L" shape of the clamping plate 9.

[0030] In specific use, the surface of the sewing machine blank piece is positioned and clamped by the clamping plate 9, and the pressure sensor assemblies 10 arranged on the inner walls of the clamping plate 9 monitor and control the clamping tightness of the sewing machine blank piece.

[0031] Preferably, the clamping table 1, the first clamping frame 5, the second mounting bracket 6 and the clamping plate 9 form a sliding connection structure.

[0032] In specific use, the first clamping frame 5 drives the second mounting frame 6 and the clamping plate 9 on it to move and adjust the position defined on the clamping table 1.

[0033] The working principle is as follows: during the processing of the sewing machine blank, according to the shape and specification of the sewing machine blank to be processed, the placing disc 11 of the corresponding size is selected and fixed on the center point of the top of the clamping table 1 by screwing, and then the first motor 3 and the second motor 7 are started to make the sewing machine blank accessory placed on the placing disc 11 move, when the first motor 3 rotates, the first bidirectional screw rod 4 connected therewith rotates, thereby the first clamping frame 5 connected with the first bidirectional screw rod 4 on both sides drives the second mounting frame 6 on the top to move towards the placing disc 11 on which the sewing machine blank is placed, at the same time, the second motor 7 on the top of the first clamping frame 5 is started to drive the second bidirectional screw rod 8 to rotate, thereby the clamping plate 9 on both sides of the second bidirectional screw rod 8 moves towards the center point, when the clamping plate 9 moves under the drive of the second bidirectional screw rod 8, the protrusion on the bottom of the clamping plate 9 moves on the rectangular sliding groove on the top of the transverse end of the second mounting frame 6, thereby the movement range of the clamping plate 9 is limited, and the clamping plate 9 can move in parallel on the clamping table 1, the rotation number of the first motor 3 and the second motor 7 is preset according to the position of the sewing machine blank, thereby the clamping plate 9 on both sides is driven to clamp the surface of the sewing machine blank, and after the clamping plate 9 clamps the surface of the sewing machine blank, the pressure sensor assembly 10 installed on the clamping plate 9 monitors the contact force of the clamping plate 9 and the sewing machine blank, thereby the movement distance of the clamping plate 9 on both sides is controlled by the second motor 7 connected therewith, so that the clamping tightness of the clamping plate 9 on the sewing machine blank is moderate, and damage to the surface of the sewing machine blank is avoided, at the same time, the pressure sensor assembly 10 is detected and cleaned regularly, so that the detection accuracy is not affected by dirt residues.

[0034] Finally, it should be noted that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sewing machine blank multi-specification self-adaptive positioning fixture, comprising: The utility model provides a clamping table (1), its characterized in be that: clamping table (1) bottom surface installs first mounting bracket (2), first mounting bracket (2) one side installs first motor (3), first motor (3) driving end surface thread connection first two -way screw rod (4), first two -way screw rod (4) other side sleeve connection in first mounting bracket (2) inner wall bearing surface, first two -way screw rod (4) surface thread connection first clamping frame (5), first clamping frame (5) transverse end bottom sliding connection in clamping table (1) surface, first clamping frame (5) top surface is equipped with second mounting bracket (6), second mounting bracket (6) one side installs second motor (7), second motor (7) driving end surface thread connection second two -way screw rod (8), second two -way screw rod (8) other end surface sleeve connection in second mounting bracket (6) inner wall bearing surface, second two -way screw rod (8) surface thread connection clamping plate (9), clamping plate (9) bottom abuts at clamping table (1) top, clamping plate (9) inner wall surface is equipped with pressure sensor assembly (10), clamping table (1) surface thread connection placement tray (11).

2. The multi-specification self-adaptive positioning fixture for sewing machine blanks according to claim 1, characterized in that: The clamping table (1) surface is longitudinally provided with a rectangular through groove, and the through groove is matched with the longitudinal end of the first clamping frame (5) in shape and size.

3. The multi-specification self-adaptive positioning fixture for sewing machine blank according to claim 1, characterized in that: The first clamping frame (5) top is provided with a rectangular groove, and the groove is matched with the bottom protrusion of the second mounting bracket (6) in shape and size.

4. The multi-specification self-adaptive positioning fixture for sewing machine blank according to claim 1, characterized in that: The placement tray (11) top is respectively provided with a rectangular groove and a circular groove, and the rectangular groove is provided with a circular groove in the inner ring.

5. The multi-specification self-adaptive positioning fixture for sewing machine blank according to claim 1, characterized in that: The clamping plate (9) is an "L" type integrated structure, and the "L" type inner wall of the clamping plate (9) is respectively provided with a group of pressure sensor assemblies (10).

6. The multi-specification self-adaptive positioning fixture for sewing machine blank according to claim 3, characterized in that: The clamping table (1), the first clamping frame (5), the second mounting bracket (6) and the clamping plate (9) form a sliding connection structure.

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