An integrated frame of a button sewing machine or a sewing machine and its processing technology

Abstract

The present invention provides an integrated frame of a button sewing machine or a sewing machine and a processing technology thereof, and belongs to the field of mechanical technology. It solves the problem that the concentricity of the spindle hole on the existing frame and the bearing hole on the gear box is difficult to ensure. The integrated frame of the button sewing machine or the sewing machine includes a base, a connecting seat on the base, a gear box on the connecting seat, and the gear box is located above the base. The base, the connecting seat and the gear box are an integrally formed structure. The present invention can make it easier to meet the concentricity requirements of the spindle hole and the bearing hole.

Description

Technical Field

[0001] The invention belongs to the technical field of machinery and relates to an integrated frame of a button sewing machine or a sewing machine and a processing technology thereof. Background Art

[0002] Button sewing machines are equipment used to sew buttons on jackets, shirts, jeans and other garments, and they are widely used.

[0003] Patent document with application number 201520826886.5 discloses a clothing button sewing machine, including a base, a workbench, a frame, a lower punch, an upper punch, a bracket, a cylinder, a fixed frame and a guide rail. The base is provided with a workbench, the rear end of the workbench is provided with a frame, both ends of the top of the frame are provided with fixed frames, a guide rail is installed between the fixed frames, a bracket is installed on the guide rail, a cylinder is provided on the top of the other end of the bracket, a punch shaft is provided at the lower end of the bracket, a reset spring is installed below the punch shaft, an upper punch is installed below the reset spring, a lower punch is installed on the workbench, and a motor is provided at the rear end of the frame.

[0004] The above-mentioned frame drives the punch shaft to move up and down through a cylinder. In the prior art, there is also a structure that drives the main shaft to move up and down through a gear. In this structure, a main shaft hole for installing the main shaft is opened on the frame, and a bearing hole is opened on the gear box. The disadvantage is that the frame and the gear box are separate, and the gear box needs to be installed on the frame, which makes it difficult to ensure the concentricity of the main shaft hole on the frame and the bearing hole on the gear box. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention provides an integrated frame of a button sewing machine or a sewing machine. The technical problem to be solved by the present invention is: how to make the concentricity of the main shaft hole and the bearing hole meet the requirements more easily.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An integrated frame of a button sewing machine or a sewing machine, the frame comprising a base, a connecting seat on the base, a gear box on the connecting seat, the gear box being located above the base, and characterized in that the base, the connecting seat and the gear box are an integrally formed structure.

[0008] The base, connecting seat and gear box of the frame of the button sewing machine or sewing machine are an integrated structure. The entire frame does not have any assembled structure. The frame has high strength. When processing the spindle hole on the frame and the bearing hole on the gear box, the frame is clamped on a four-axis machining center. The spindle hole and the bearing hole are respectively processed on the gear box by drilling and reaming using a machining center machine tool (such as a four-axis machining center machine tool). This can well ensure that the concentricity of the spindle hole and the bearing hole meets the requirements. The frame only needs to be clamped once to avoid errors caused by secondary clamping.

[0009] In addition, if the frame and gear box of the button sewing machine or sewing machine are separate, the connection between the gear box and the frame generally needs to be processed into a plane, and the accuracy of the plane is very high, and the assembly is also very high, so that the concentricity of the main shaft hole on the frame and the bearing hole on the gear box can meet the requirements, so that the main shaft and gear can be prevented from getting stuck or moving unsmoothly when sewing buttons, and the accuracy of sewing buttons can be ensured, especially since buttons are generally small, so the accuracy of sewing buttons is particularly important. The connecting seat and gear box of this frame are integrally formed, which omits the processing of the connection between the connecting seat and the gear box, and also omits the steps of assembling the connecting seat and the gear box. While ensuring the concentricity of the main shaft hole and the bearing hole, the processing is simple and convenient, and the processing efficiency is high.

[0010] In the above-mentioned integrated frame of a button sewing machine, a groove is formed on at least one side of the connecting seat, and a reinforcing rib is provided in the groove. The reinforcing rib has two ends and each end is respectively connected to the inner wall of the groove.

[0011] The groove can be opened on one side of the connecting seat, or on both sides of the connecting seat. The groove can reduce the material of the frame, and reinforcing ribs are arranged in the groove. The ends of the reinforcing ribs are respectively connected to the inner wall of the groove. This structure can ensure that the frame has good strength.

[0012] In the above-mentioned integrated frame of a button sewing machine or a sewing machine, a main shaft hole is provided on the gear box, a through hole is provided on the base, and the main shaft hole and the through hole are opposite to each other.

[0013] The spindle hole and the through hole in the frame are opposite to each other, the spindle is installed in the spindle hole, and the lower die is opposite to the through hole, so that the spindle and the lower die can be accurately aligned.

[0014] Another object of the present invention is to provide a processing technology for an integrated frame of a button sewing machine or a sewing machine, characterized in that the processing technology comprises the following steps:

[0015] S1: A blank of a frame is manufactured by casting, wherein the blank has a base, a connecting seat is provided on the base, and a gear box is provided on the connecting seat.

[0016] S2: using a face milling cutter to machine a bottom surface 1 and an upper surface 1 on the base, and using a face milling cutter to machine a bottom surface 2, an upper surface 2 and a side surface 1 on the gear box;

[0017] S3: machining a main shaft hole on the second upper surface of the gear box, so that the main shaft hole passes through the second bottom surface of the gear box;

[0018] S4: drilling a hole on the side of the gear box to form a rough shape of a bearing hole, and reserving a machining allowance;

[0019] S5: boring the main shaft hole and the bearing hole of the gear box respectively, so that the main shaft hole and the bearing hole are concentric;

[0020] S6: Ream the inside of the spindle hole and the bearing hole respectively, so that the inside of the spindle hole and the bearing hole meet the precision requirements and surface finish requirements.

[0021] In the blank of this frame, the base, connecting seat and gear box are an integrated structure, and the entire blank has no assembly structure. To process the bottom surface one and upper surface one on the base, the bottom surface two, upper surface two and side surface one on the gear box, as well as the spindle hole and bearing hole on the gear box, it is only necessary to clamp the blank on the machining center, and use the machining center to use a face milling cutter to first process the bottom surface one, upper surface one, bottom surface two, upper surface two and side surface one, and then process the spindle hole and bearing hole by drilling and reaming.

[0022] The processing technology of this frame only requires one clamping of the blank, and it is processed by a machining center machine tool (such as a four-axis machining center machine tool). It can well ensure that the concentricity of the spindle hole and the bearing hole meets the requirements, avoid errors caused by secondary clamping, and is convenient to process with high processing efficiency.

[0023] Boring the spindle hole and the bearing hole of the gear box separately to make the spindle hole and the bearing hole concentric can avoid the spindle and gear shaft from getting stuck or moving unsmoothly due to excessive concentricity.

[0024] The inside of the main shaft hole and the bearing hole are reamed respectively. This step can increase the internal finish of the main shaft hole and the bearing hole. When the main shaft is installed in the main shaft hole or the gear shaft is installed in the bearing hole, it is not easy to wear, thereby improving wear resistance.

[0025] It should be noted that the above steps S1 to S6 are not completely fixed, and some of the steps can be adjusted in sequence or performed synchronously as needed.

[0026] In the above-mentioned processing technology of the integrated frame of a button sewing machine or a sewing machine, in step S3, a center hole is firstly drilled on the second upper surface using a center drill.

[0027] Using the center drill to drill the center hole on the upper surface can ensure the accuracy of the position of the spindle hole to be processed.

[0028] In the above-mentioned processing technology of the integrated frame of a button sewing machine or a sewing machine, in step S3, the center hole is first processed using a drill bit of a suitable size.

[0029] Using a drill to process the center hole first can reduce the amount of cutting when the large drill is drilling and avoid damage to the large drill.

[0030] In the above-mentioned processing technology of the integrated frame of a button sewing machine or a sewing machine, in step S4, a full tungsten steel milling cutter is used to drill holes on the inner side surface of the gear box.

[0031] In the above-mentioned processing technology of the integrated frame of a button sewing machine or a sewing machine, in step S6, a tungsten steel reamer is used to process the inside of the main shaft hole and the bearing hole respectively.

[0032] Compared with the prior art, the advantages of the present invention are as follows:

[0033] 1. The base, connecting seat and gear box of this frame are an integrated structure. The entire frame has no assembled structure. The frame has high strength. The main shaft hole and bearing hole can be processed on the gear box by drilling and reaming using a machining center machine tool, which can well ensure the concentricity of the main shaft hole and the bearing hole.

[0034] 2. The processing technology of this frame only requires one clamping of the blank, and the use of a machining center machine tool (such as a four-axis machining center machine tool) for processing can well ensure the concentricity of the spindle hole and the bearing hole, avoid the error caused by secondary clamping, and is convenient to process with high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is the structural diagram of this frame;

[0036] Figure 2 This is a structural diagram of the machine frame from another perspective.

[0037] In the figure: 1 base, 2 connecting seat, 3 gear box, 4 groove, 5 reinforcing rib, 6 main shaft hole, 7 through hole, 8 bottom surface one, 9 upper surface one, 10 bottom surface two, 11 upper surface two, 12 side surface one, 13 bearing hole. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0039] like Figure 1As shown in or 2, the frame includes a base 1, the base 1 has a connecting seat 2, the connecting seat 2 has a gear box 3, the gear box 3 is located above the base 1, and the base 1, the connecting seat 2 and the gear box 3 are an integrally formed structure.

[0040] The base 1, connecting seat 2 and gear box 3 of this frame are an integrated structure. The entire frame has no assembled structure and has high strength. When processing the spindle hole 6 on the frame and the bearing hole 13 on the gear box 3, the frame is clamped on a four-axis machining center. The spindle hole 6 and the bearing hole 13 are respectively processed on the gear box 3 by drilling and reaming using a machining center machine tool (such as a four-axis machining center machine tool). The concentricity of the spindle hole 6 and the bearing hole 13 can be well guaranteed. The frame only needs to be clamped once to avoid errors caused by secondary clamping.

[0041] like Figure 1 As shown, in this embodiment, a groove 4 is opened on one side of the connecting seat 2, and a reinforcing rib 5 is provided in the groove 4. The reinforcing rib 5 has two ends and each end is connected to the inner wall of the groove 4 respectively.

[0042] The groove 4 can be opened on one side of the connecting seat 2, or on both sides of the connecting seat 2. The groove 4 can reduce the material of the frame, and the reinforcing rib 5 is arranged in the groove 4. The ends of the reinforcing rib 5 are respectively connected to the inner wall of the groove 4. This structure can ensure that the frame has good strength.

[0043] like Figure 1 As shown, in this embodiment, a main shaft hole 6 is formed on the gear box 3, and a through hole 7 is formed on the base 1, and the main shaft hole 6 and the through hole 7 are opposite to each other.

[0044] The spindle hole 6 and the through hole 7 in the frame are opposite to each other, the spindle is installed in the spindle hole 6, and the lower die is opposite to the through hole 7, so that the spindle and the lower die can be accurately aligned.

[0045] The present invention also provides a processing technology for an integrated frame of a button sewing machine or a sewing machine, and the processing technology comprises the following steps:

[0046] S1: A blank of a frame is manufactured by casting, wherein the blank comprises a base 1, a connecting seat 2 is disposed on the base 1, and a gear box 3 is disposed on the connecting seat 2.

[0047] S2: Use a face milling cutter to machine a bottom surface 8 and an upper surface 9 on the base 1, and use a face milling cutter to machine a bottom surface 10, an upper surface 11 and a side surface 12 on the gear box 3;

[0048] S3: machining a main shaft hole 6 on the upper surface 11 of the gear box 3, so that the main shaft hole 6 passes through the bottom surface 10 of the gear box 3;

[0049] S4: drilling a hole on the side 12 of the gear box 3 to form a rough shape of the bearing hole 13, and reserving a processing allowance;

[0050] S5: boring the spindle hole 6 and the bearing hole 13 of the gear box 3 respectively, so that the spindle hole 6 and the bearing hole 13 are concentric;

[0051] S6: respectively ream the inside of the main shaft hole 6 and the bearing hole 13 so that the inside of the main shaft hole 6 and the bearing hole 13 meet the precision requirements and surface finish requirements.

[0052] like Figure 1 and 2 As shown, in the blank of the frame, the base 1, the connecting seat 2 and the gear box 3 are an integrated structure, and the entire blank has no assembled structure. To process the bottom surface 8 and the upper surface 9 on the base 1, the bottom surface 10, the upper surface 11 and the side surface 12 on the gear box 3, and the spindle hole 6 and the bearing hole 13 on the gear box 3, it is only necessary to clamp the blank on the machining center machine tool, use the machining center machine tool to use a face milling cutter to first process the bottom surface 8, the upper surface 9, the bottom surface 10, the upper surface 11 and the side surface 12, and then process the spindle hole 6 and the bearing hole 13 by drilling and reaming.

[0053] The processing technology of this frame only requires one clamping of the blank, and the use of a machining center machine tool (such as a four-axis machining center machine tool) for processing can well ensure the concentricity of the spindle hole 6 and the bearing hole 13, avoid errors caused by secondary clamping, and facilitate processing with high processing efficiency.

[0054] Boring the spindle hole 6 and the bearing hole 13 of the gear box 3 respectively to make the spindle hole 6 and the bearing hole 13 concentric, which can prevent the spindle and the gear shaft from getting stuck or moving unsmoothly due to excessive concentricity;

[0055] The inside of the main shaft hole 6 and the bearing hole 13 are reamed respectively. This step can increase the internal smoothness of the main shaft hole 6 and the bearing hole 13. When the main shaft is installed in the main shaft hole 6 or the gear shaft is installed in the bearing hole 13, it is not easy to wear, thereby improving wear resistance.

[0056] Preferably, in step S3, a center hole is first drilled on the upper surface 11 using a center drill.

[0057] Drilling a center hole on the upper surface 11 using a center drill can well ensure the accuracy of the position of the spindle hole 6 to be processed.

[0058] Preferably, in step S3, the center hole is first processed using a drill bit of appropriate size.

[0059] Using a drill to process the center hole first can reduce the amount of cutting when the large drill is drilling and avoid damage to the large drill.

[0060] Preferably, in step S4, the inner side surface of the gear box 3 is drilled with a full tungsten steel milling cutter.

[0061] Preferably, in step S6, a tungsten steel reamer is used to process the inside of the spindle hole 6 and the bearing hole 13 respectively.

[0062] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An integrated frame of a button sewing machine or a sewing machine, the frame comprising a base (1), the base (1) having a connecting seat (2), the connecting seat (2) having a gear box (3), the gear box (3) being located above the base (1), characterized in that: The base (1), the connecting seat (2) and the gear box (3) are an integrally formed structure. The integrally formed blank structure is clamped once, and a main shaft hole (6) and a bearing hole (13) are respectively machined on the gear box (3) by drilling and reaming using a machining center machine tool to ensure that the concentricity of the main shaft hole (6) and the bearing hole (13) meets the requirements. The main shaft hole (6) is machined on the upper surface (11) of the gear box (3), so that the main shaft hole (6) passes through the bottom surface (10) of the gear box (3), and a side surface (12) of the gear box (3) is drilled to machine the prototype of the bearing hole (13).

2. The integrated frame of a button sewing machine or a sewing machine according to claim 1, characterized in that: At least one side of the connection seat (2) is provided with a groove (4), the groove (4) has a reinforcing rib (5), the reinforcing rib (5) has two ends, and each end is respectively connected to the inner wall of the groove (4).

3. The integrated frame of a button sewing machine or a sewing machine according to claim 1 or 2, characterized in that: The gear box (3) is provided with a main shaft hole (6), the base (1) is provided with a through hole (7), and the main shaft hole (6) and the through hole (7) are opposite to each other.

4. A process for processing an integrated frame of a button sewing machine or a sewing machine as claimed in any one of claims 1 to 3, characterized in that: The processing technology comprises the following steps: S1: A blank of a frame is manufactured by casting, wherein the blank comprises a base (1), a connecting seat (2) is provided on the base (1), and a gear box (3) is provided on the connecting seat (2); S2: using a face milling cutter to machine a bottom surface 1 (8) and an upper surface 1 (9) on the base (1), and using a face milling cutter to machine a bottom surface 2 (10), an upper surface 2 (11) and a side surface 1 (12) on the gear box (3); S3: machining a main shaft hole (6) on the second upper surface (11) of the gear box (3), so that the main shaft hole (6) passes through the second bottom surface (10) of the gear box (3); S4: drilling a hole on the side surface (12) of the gear box (3) to form a rough shape of a bearing hole (13), and leaving a processing allowance; S5: boring the main shaft hole (6) and the bearing hole (13) of the gear box (3) respectively, so that the main shaft hole (6) and the bearing hole (13) are concentric; S6: using a machining center machine tool to drill and ream the inside of the spindle hole (6) and the bearing hole (13), respectively, so that the inside of the spindle hole (6) and the bearing hole (13) meet the precision requirements and surface finish requirements; In the above steps S3 to S6, the blank is clamped once and processed by a machining center machine tool to ensure the concentricity of the spindle hole (6) and the bearing hole (13).

5. The processing technology of the integrated frame of a button sewing machine or a sewing machine according to claim 4, characterized in that: In step S3, a center hole is first drilled on the upper surface 2 (11) using a center drill.

6. The processing technology of the integrated frame of a button sewing machine or a sewing machine according to claim 5, characterized in that: In step S3, the center hole is first processed using a drill bit of appropriate size.

7. The processing technology of the integrated frame of a button sewing machine or a sewing machine according to claim 4, characterized in that: In step S4, a full tungsten steel milling cutter is used to drill holes on the inner side surface of the gear box (3).

8. The processing technology of the integrated frame of a button sewing machine or a sewing machine according to claim 4, characterized in that: In step S6, the interior of the spindle hole (6) and the bearing hole (13) are processed respectively using a tungsten steel reamer.

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