Sewing machine shell positioning tool clamp

Abstract

The utility model discloses a sewing machine shell positioning tool clamp which comprises an installation base, an installation plate is vertically installed on the installation base, a positioning assembly matched with a sewing machine shell hole is arranged on the installation plate, a supporting piece used for supporting the bottom of a sewing machine shell is arranged on the installation base, and a first clamping mechanism and a second clamping mechanism are arranged on the installation plate. The first clamping mechanism and the second clamping mechanism are used for horizontally positioning and clamping the two ends of the sewing machine shell respectively. The sewing machine shell fixing device has the advantages that firstly, the sewing machine shell is positioned and placed through the positioning assembly, in addition, the sewing machine shell is supported in the vertical direction through the supporting piece on the installation base, and the two ends of the sewing machine shell are clamped and fixed in the horizontal direction through the first clamping mechanism and the second clamping mechanism; therefore, positioning and fixing of the sewing machine shell in the horizontal direction are achieved, power sources are few, pipeline arrangement is simple, no inclined face is arranged, the requirement for machining precision is lower, and the machining cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tools for sewing machine shell processing, and particularly relates to a positioning tool fixture for a sewing machine shell. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so as to interweave or sew together one or more layers of sewing materials. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and man-made fibers, as well as products such as leather, plastic, and paper. The stitches sewn are neat, beautiful, flat and firm, the sewing speed is fast, and it is easy to use. The sewing machine shell is an important part of the sewing machine. The existing sewing machine shell needs to be further processed after being formed, and a fixture is required to position and clamp the machine shell during processing.

[0003] For example, a positioning fixture for sewing machine shell processing disclosed in a Chinese utility model patent (authorized publication number: CN218657922U) has at least a pair of first support members provided on the mounting seat for abutting against the side of the sewing machine shell during processing, and a third support member and a first support column respectively for abutting against both ends of the sewing machine shell during processing. The two first support members are inclined towards each other. The mounting seat is further provided with a second support member for abutting against the bottom of the sewing machine shell during processing, and a corner pressing plate is rotatably provided for pressing against the top of the sewing machine shell during processing.

[0004] The two first support members of the positioning fixture that are inclined towards each other can abut against the side of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting in the width direction during processing. Moreover, the inclined first support members can withstand the forces in both the vertical and horizontal directions during the processing of the sewing machine shell, and the supporting effect is better. The third support member and the first support column can abut against both ends of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting in the length direction during processing. A plurality of second support members and a plurality of corner pressing members respectively abut against the bottom and top of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting vertically during processing.

[0005] The advantages of the above prior art are as follows: The two first support members, the first lever pressing plate and the second support column, and the second lever pressing plate and the limit protrusion of the positioning fixture for sewing machine shell processing described above can all abut against the side of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting in the width direction during processing. The third support member and the first support column can abut against both ends of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting in the length direction during processing. A plurality of second support members, a plurality of corner pressing members, the third support column and the hinge pressing plate can all abut against the upper and lower ends of the sewing machine shell towards each other, thereby preventing the sewing machine shell from shifting vertically during processing, thereby improving the clamping stability of the sewing machine shell during the hole processing.

[0006] There are some problems in the above-mentioned prior art. In the above-mentioned prior art, the sewing machine housing needs to be supported by multiple support members, and multiple power sources are required to drive the support members for fixed clamping, resulting in a large number of pipelines, which are difficult to arrange and affect the aesthetics. In addition, the two first support members, the first lever pressing plate, the second support column, the second lever pressing plate and the limit protrusion, which are arranged obliquely towards each other of the positioning fixture, can all abut against the side of the sewing machine housing towards each other. Due to the inclined setting, the processing accuracy requirements are relatively high, and a specific angle needs to be processed, resulting in an increase in cost. Therefore, it is urgent to improve the above-mentioned disadvantages. Summary of the Utility Model

[0007] The purpose of the present utility model is to solve the above problems. The present utility model provides a positioning tooling fixture for a sewing machine housing, which has the advantages of fewer power sources, simple pipelines, lower processing accuracy requirements and lower processing costs.

[0008] To achieve the above purpose, the present utility model provides the following technical solutions: It includes a mounting base, an installation plate is vertically installed on the mounting base, a positioning component matching with the holes of the sewing machine housing is arranged on the installation plate, a support member for supporting the bottom of the sewing machine housing is arranged on the mounting base, a first clamping mechanism and a second clamping mechanism are arranged on the installation plate, and the first clamping mechanism and the second clamping mechanism are respectively used for horizontally positioning and clamping both ends of the sewing machine housing.

[0009] Preferably, the first clamping mechanism includes a first connecting seat, a first driving member, a first driving rod, a connecting rod and a first clamping block. The first connecting seat is installed on the installation plate, the first driving member is installed at the end of the first connecting seat, the first driving rod is drivingly installed on the first driving member, the first clamping block includes a connecting end and a clamping end, the connecting end of the first clamping block is hinged to the end of the first driving rod, one end of the connecting rod is hinged to the middle of the first clamping block, and the other end of the connecting rod is hinged to the first driving member.

[0010] Preferably, the second clamping mechanism includes a second connecting seat, a second driving member, a second driving rod and a second clamping block. The second connecting seat is installed on the installation plate, the second driving member is installed at the end of the second connecting seat, the second driving rod is drivingly installed on the second driving member, and the second clamping block is fixedly installed on the second driving rod.

[0011] Preferably, the support members each include a support seat and a support rod. The support rod is installed on the support seat, and the length direction of the support rod is in butt joint with the sewing machine housing.

[0012] Preferably, a connection hole is provided on the support base, a plug rod is installed in the connection hole, a jack cooperating with the plug rod is provided on the support rod, and the support base and the support rod are connected and cooperated through the plug rod.

[0013] Preferably, a clamping groove is provided at the position where the support rod contacts the support base, and the shape of the clamping groove is adapted to the shape of the support base.

[0014] Preferably, a reinforcing member is further provided on the mounting base, and the reinforcing member includes a third driving member and a jack rod, and the jack rod is drivingly installed on the third driving member.

[0015] Preferably, a support frame is further provided on the mounting base.

[0016] Preferably, the positioning assembly includes a positioning base, and a positioning column adapted to be inserted and cooperated with a hole on the sewing machine shell is provided on the positioning base.

[0017] Preferably, a sequence valve is installed on the mounting base or the mounting plate, and connecting pipes are connected between the sequence valve and the first driving member, the second driving member and the third driving member.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] A positioning tooling fixture for a sewing machine shell provided by the present utility model first positions and places the sewing machine shell through a positioning assembly, and additionally supports the sewing machine shell in the vertical direction through a support member on the mounting base, and clamps and fixes the two ends of the sewing machine shell in the horizontal direction through a first clamping mechanism and a second clamping mechanism, so as to realize the positioning and fixing of the sewing machine shell in the horizontal direction. Through the mutual cooperation among the support member, the first clamping mechanism, the second clamping mechanism and the mounting plate, the sewing machine shell can be stably clamped and fixed, with fewer power sources, simple pipeline settings, no inclined plane settings, lower processing precision requirements, and lower processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model clamping the sewing machine shell;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the present utility model removing the sewing machine shell;

[0022] Figure 3 is a top view structural schematic diagram of the present utility model removing the sewing machine shell;

[0023] Figure 4 is a front view structural schematic diagram of the present utility model removing the sewing machine shell;

[0024] Figure 5 isFigure 4 Schematic cross-sectional structure diagram of A-A in

[0025] Figure 6 This is a schematic rear view structure diagram of the sewing machine housing of the present utility model.

[0026] Description of the drawings: 101, mounting base; 102, mounting plate; 11, first clamping mechanism; 111, first connecting seat; 112, first driving member; 113, first driving rod; 114, connecting rod; 115, first clamping block; 116, first mating groove; 12, second clamping mechanism; 121, second connecting seat; 122, second driving member; 123, second driving rod; 124, second clamping block; 125, abutting block; 126, second mating groove; 2, sewing machine housing; 21, hole; 3, support member; 31, support seat; 310, connecting hole; 32, support rod; 320, insertion hole; 321, clamping groove; 4, positioning assembly; 41, positioning seat; 42, positioning column; 5, air blowing pipe; 6, sequence valve; 7, strengthening member; 71, third driving member; 72, ejector rod; 8, support frame. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figures 1 - 6 shown, a positioning tooling fixture for a sewing machine housing includes a mounting base 101, an mounting plate 102 is vertically mounted on the mounting base 101, a support member 3 for supporting the bottom of the sewing machine housing is provided on the mounting base 101, a first clamping mechanism 11 and a second clamping mechanism 12 are provided on the mounting plate 102, the first clamping mechanism 11 and the second clamping mechanism 12 are respectively used for positioning and clamping both ends of the sewing machine housing 2, and a positioning assembly 4 matching with the hole 21 of the sewing machine housing 2 is provided on the mounting plate 102.

[0029] The first clamping mechanism 11 includes a first connecting seat 111, a first driving member 112, a first driving rod 113, a connecting rod 114 and a first clamping block 115. The first connecting seat 111 is installed on the mounting plate 102. The first driving member 112 is installed at the end of the first connecting seat 111. The first driving rod 113 is drivingly installed on the first driving member 112. The first clamping block 115 includes a connecting end and a clamping end. The first clamping block 115 in this application is in a "Z" shape. The connecting end of the first clamping block 115 is hinged to the end of the first driving rod 113. One end of the connecting rod 114 is hinged to the middle of the first clamping block 115, and the other end of the connecting rod 114 is hinged to the first driving member 112. The first driving rod 113 reciprocates between a first position and a second position along its axial direction. When the first driving rod 113 is in the first position, the clamping end of the first clamping block 115 abuts and cooperates with the sewing machine housing 2. When the first driving rod 113 is in the second position, the clamping end of the first clamping block 115 disengages from the sewing machine housing 2.

[0030] Further, a first fitting groove 116 that is in shape-fitting with the sewing machine housing 2 is provided at the clamping end of the first clamping block 115.

[0031] The second clamping mechanism 12 includes a second connecting seat 121, a second driving member 122, a second driving rod 123 and a second clamping block 124. The second connecting seat 121 is installed on the mounting plate 102. The second driving member 122 is installed at the end of the second connecting seat 121. The second driving rod 123 is drivingly installed on the second driving member 122. The second clamping block 124 is fixedly installed on the second driving rod 123. The second driving rod 123 reciprocates between a third position and a fourth position along its axial direction. When the second driving rod 123 is in the second position, the clamping end of the second clamping block 124 abuts and cooperates with the sewing machine housing 2. When the second driving rod 123 is in the second position, the clamping end of the second clamping block 124 disengages from the sewing machine housing 2.

[0032] Further, an abutting block 125 is provided on the second clamping block 124. The abutting block 125 is used for abutting and cooperating with the sewing machine housing 2, and a second fitting groove 126 that is in shape-fitting with the sewing machine housing 2 is provided on the abutting block 125.

[0033] In this application, the number of the support members 3 is two. Each of the support members 3 includes at least one support seat 31. A support rod 32 is provided on the support seat 31, and the length direction of the support rod 32 abuts and cooperates with the sewing machine housing 2.

[0034] The support base 31 is provided with a connection hole 310, a plug rod is installed in the connection hole 310, and the support rod 32 is provided with a jack 320 that cooperates with the plug rod, so that the support base 31 and the support rod 32 are limited and connected together through the plug rod.

[0035] It should be noted that when there is one support base 31 of a group of support members 3, there are at least two connection holes 310 on the support base 31. When there are two or more support bases 31 in a group of support members 3, there are at least two connection holes 310 on all the support bases 31 of each group. Thus, based on the principle that two points determine a straight line, the support rod 32 can be limited and fixed on the support base 31.

[0036] A clamping groove 321 is provided at the position where the support rod 32 contacts the support base 31. The shape of the clamping groove 321 is adapted to the shape of the support base 31, and the clamping groove 321 plays a role in limiting installation.

[0037] The mounting base 101 is further provided with a reinforcing member 7. The reinforcing member 7 includes a third driving member 71 and a top rod 72. The top rod 72 is drivingly installed on the third driving member 71, and the top rod 72 cooperates with the bottom of the sewing machine housing 2 to provide a supporting force for the sewing machine housing 2 to overcome gravity.

[0038] The mounting base 101 is further provided with a support frame 8. The support frame 8 is used to support the bottom of the sewing machine housing 2, further improving the stability of the sewing machine housing 2 during processing.

[0039] The positioning assembly 4 includes a positioning seat 41. The positioning seat 41 is provided with a positioning post 42 that is inserted and cooperates with the hole 21 on the sewing machine housing 2.

[0040] A sequence valve 6 is installed on the mounting base 101 or the mounting plate 102. Connecting pipes (not shown in the figure) are connected between the sequence valve 6 and the first driving member 112, the second driving member 122, and the third driving member 71 respectively. Through the sequence valve 6, the starting sequence of the first driving member 112, the second driving member 122, and the third driving member 71 can be realized. In this application, the starting times of the first driving member 112 and the second driving member 122 are the same, and the starting time of the third driving member 71 is later than the starting times of the first driving member 112 and the second driving member 122.

[0041] The first driving member 112, the second driving member 122, and the third driving member 71 are cylinders or oil cylinders.

[0042] The mounting plate 102 is provided with a blowpipe 5. The blowpipe 5 is used to blow the iron filings on the fixture clean.

[0043] During specific use: In the initial state, the first driving rod 113 is located at the first position, and the second driving rod 123 is located at the third position. Place the sewing machine housing 2 on the upper ends of the two support frames 8 and the support rod 32, and then align and insert the hole 21 of the sewing machine housing 2 with the positioning post 42 on the positioning seat 41. At this time, inflate or add hydraulic oil to the sequence valve 6. When the air pressure or hydraulic pressure in the sequence valve 6 reaches the first predetermined value, the first driving member 112 and the second driving member 122 are started simultaneously. When the first driving rod 113 moves from the first position to the second position, the connecting rod 114 and the first clamping block 115 swing at this time, so that the clamping end of the first clamping block 115 abuts and cooperates with the sewing machine housing 2. When the second driving rod 123 moves from the second position to the first position, the second clamping block 124 and the abutting block 125 move towards the side close to the sewing machine housing 2 at this time, so that the abutting block 125 abuts and cooperates with the sewing machine housing 2. At this time, as the air pressure or hydraulic pressure continuously increases to the second predetermined value, the third driving member 71 is started at this time, and then drives the ejector rod 72 to abut and cooperate with the sewing machine housing 2, so as to realize multi-point support for the sewing machine housing 2, with higher stability, and there is no inclined surface setting, and the processing accuracy requirement is lower, making the processing cost lower.

[0044] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewing machine housing positioning fixture, comprising a mounting seat (101), characterized in that: A mounting plate (102) is vertically mounted on the mounting seat (101); a positioning assembly (4) is provided on the mounting plate (102) and matches with a hole (21) of a sewing machine housing (2); a support member (3) is provided on the mounting seat (101) for supporting the bottom of the sewing machine housing; a first clamping mechanism (11) and a second clamping mechanism (12) are provided on the mounting plate (102); the first clamping mechanism (11) and the second clamping mechanism (12) are respectively used for horizontally positioning and clamping two ends of the sewing machine housing (2).

2. A sewing machine housing positioning fixture according to claim 1, characterized in that: The first clamping mechanism (11) comprises a first connecting seat (111), a first driving member (112), a first driving rod (113), a connecting rod (114) and a first clamping block (115); the first connecting seat (111) is mounted on the mounting plate (102); the first driving member (112) is mounted on the end of the first connecting seat (111); the first driving rod (113) is driven and mounted on the first driving member (112); the first clamping block (115) comprises a connecting end and a clamping end; the connecting end of the first clamping block (115) is hinged to the end of the first driving rod (113); one end of the connecting rod (114) is hinged to the middle of the first clamping block (115); and the other end of the connecting rod (114) is hinged to the first driving member (112).

3. A sewing machine housing positioning fixture according to claim 2, characterized in that: The second clamping mechanism (12) comprises a second connecting seat (121), a second driving member (122), a second driving rod (123) and a second clamping block (124); the second connecting seat (121) is mounted on the mounting plate (102); the second driving member (122) is mounted on the end of the second connecting seat (121); the second driving rod (123) is drivingly mounted on the second driving member (122); and the second clamping block (124) is fixedly mounted on the second driving rod (123).

4. A sewing machine housing positioning fixture according to claim 1, characterized in that: The support members (3) each comprise a support seat (31) and a support rod (32); the support rod (32) is mounted on the support seat (31); and the support rod (32) is in abutment with the sewing machine housing (2) in its length direction.

5. A sewing machine housing positioning fixture according to claim 4, characterized in that: The support seat (31) is provided with a connection hole (310), an insertion rod is installed in the connection hole (310), and the support rod (32) is provided with a insertion hole (320) that cooperates with the insertion rod, and the support seat (31) and the support rod (32) are connected and cooperated through the insertion rod.

6. A sewing machine housing positioning fixture according to claim 5, characterized in that: A clamping groove (321) is provided at the position where the support rod (32) contacts the support seat (31), and the shape of the clamping groove (321) is adapted to the shape of the support seat (31).

7. The sewing machine housing positioning fixture according to claim 1, characterized in that: The mounting seat (101) is also provided with a reinforcing member (7), the reinforcing member (7) comprising a third driving member (71) and a push rod (72), the push rod (72) being driven and mounted on the third driving member (71).

8. The sewing machine housing positioning fixture according to claim 1, characterized in that: A support frame (8) is also provided on the mounting seat (101).

9. The sewing machine housing positioning fixture according to claim 1, characterized in that: The positioning assembly (4) comprises a positioning seat (41), and a positioning column (42) is provided on the positioning seat (41) and is plugged into and matched with a hole (21) on the sewing machine housing (2).

10. The sewing machine housing positioning fixture according to claim 3, characterized in that: A sequence valve (6) is installed on the mounting seat (101) or the mounting plate (102), and connecting pipes are connected between the sequence valve (6) and the first driving member (112), the second driving member (122) and the third driving member (71).

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