阅读说明：本技术 一种用于带有凸台薄板钻孔的固定夹具 (Fixing clamp for drilling of thin plate with boss ) 是由 李利华 张永利 邓弋宁 于 2019-09-29 设计创作，主要内容包括：一种用于带有凸台薄板钻孔的固定夹具,本发明涉及一种固定夹具,本发明是为了解决现有技术中对带有凸台的薄板零件进行钻孔加工时薄板零件钻孔比较困难,不能保证零件的精度要求,影响零件的加工质量,而且生产效率较低的问题,它包括上模体、下模体、第一钻套、第二钻套、两个螺栓和两个螺母；上模体和下模体均为长方体,上模体的一个侧面加工有第一工件安装槽,第一工件安装槽的槽底加工有第一钻套安装孔、第二钻套安装孔和限位凸起,限位凸起的横截面为带有优弧的弓形,下模体的一个侧面加工有第二工件安装槽,第二工件安装槽的槽底加工有第一钻头通过孔和第二钻头通过孔,第一工件安装槽和第二工件安装槽相对设置,本发明用于带有凸台的薄板钻孔时使用。(The invention relates to a fixing clamp for drilling a sheet with a boss, in particular to a fixing clamp, which aims to solve the problems that in the prior art, the drilling of the sheet part is difficult when the sheet part with the boss is drilled, the precision requirement of the part cannot be ensured, the processing quality of the part is influenced, and the production efficiency is low; the upper die body and the lower die body are cuboids, a first workpiece mounting groove is machined in one side face of the upper die body, a first drill bushing mounting hole, a second drill bushing mounting hole and a limiting bulge are machined in the bottom of the first workpiece mounting groove, the cross section of the limiting bulge is in an arc shape with a major arc, a second workpiece mounting groove is machined in one side face of the lower die body, a first drill bit through hole and a second drill bit through hole are machined in the bottom of the second workpiece mounting groove, and the first workpiece mounting groove and the second workpiece mounting groove are arranged oppositely.)

1. The utility model provides a mounting fixture for having drilling of boss sheet metal which characterized in that: the drilling tool comprises an upper die body (1), a lower die body (5), a first drill bushing (3-1), a second drill bushing (3-2), two bolts (2) and two nuts (4); the upper die body (1) and the lower die body (5) are cuboids, one side surface of the upper die body (1) is processed with a first workpiece mounting groove (1-1), the bottom of the first workpiece mounting groove (1-1) is processed with a first drill bushing mounting hole (1-2), a second drill bushing mounting hole (1-3) and a limiting bulge (1-5), the cross section of the limiting bulge (1-5) is in a bow shape with a major arc, the central line of the first drill bushing mounting hole (1-2), the central line of the second drill bushing mounting hole (1-3) and the axis of the limiting bulge (1-5) are positioned in the same plane, the side surfaces of the upper die body (1) close to two ends are respectively processed with a first mounting through hole (1-4), one side surface of the lower die body (5) is processed with a second workpiece mounting groove (5-1), a first drill bit through hole (5-2) and a second drill bit through hole (5-3) are processed at the bottom of the second workpiece mounting groove (5-1), the center line of the first drill bit through hole (5-2) and the center line of the second drill bit through hole (5-3) are arranged in parallel, a second mounting through hole (5-4) is respectively processed on the side surface of the lower die body (5) close to two ends, the first workpiece mounting groove (1-1) and the second workpiece mounting groove (5-1) are arranged oppositely, each first mounting through hole (1-4) is respectively arranged corresponding to one second mounting through hole (5-4), each bolt (2) is respectively inserted in one first mounting through hole (1-4) and one second mounting through hole (5-4), and each bolt (2) is provided with a nut (4) in a threaded connection manner, a first drill bushing (3-1) is installed on the first drill bushing installation hole (1-2), a second drill bushing (3-2) is installed on the second drill bushing installation hole (1-3), the first drill bushing installation hole (1-2) is arranged corresponding to the first drill bit through hole (5-2), and the second drill bushing installation hole (1-3) is arranged corresponding to the second drill bit through hole (5-3).

2. A fastening clip for drilling a sheet with a boss according to claim 1, wherein: the center line of the first drill bushing mounting hole (1-2) is superposed with the center line of the first drill bit through hole (5-2), and the center line of the second drill bushing mounting hole (1-3) is superposed with the center line of the second drill bit through hole (5-3).

3. A fastening clip for drilling a sheet with a boss according to claim 1, wherein: the first drill bushing mounting hole (1-2) is in interference fit with the first drill bushing (3-1), and the second drill bushing mounting hole (1-3) is in interference fit with the second drill bushing (3-2).

4. A fastening clip for drilling a sheet with a boss according to claim 1, wherein: the sum of the depth value of the groove depth of the first workpiece mounting groove (1-1) and the depth value of the groove depth of the second workpiece mounting groove (5-1) is less than or equal to the thickness value of the thin plate.

5. A fastening clip for drilling a sheet with a boss according to claim 1, wherein: the diameter of the first drill passing hole (5-2) is greater than the diameter of the corresponding workpiece machining through hole, and the diameter of the second drill passing hole (5-3) is greater than the diameter of the corresponding workpiece machining through hole.

Technical Field

The invention relates to a fixing clamp, in particular to a fixing clamp for drilling a thin plate with a boss.

Background

Disclosure of Invention

The invention aims to solve the problems that the drilling of a sheet part is difficult when the sheet part with a boss is drilled, the precision requirement of the machined part cannot be ensured, the machining quality of the part is influenced and the production efficiency is low in the prior art, and further provides a fixing clamp for the drilling of the sheet part with the boss.

The technical scheme adopted by the invention for solving the problems is as follows:

the drilling jig comprises an upper die body, a lower die body, a first drill bush, a second drill bush, two bolts and two nuts; the upper die body and the lower die body are cuboids, one side surface of the upper die body is processed with a first workpiece mounting groove, the bottom of the first workpiece mounting groove is processed with a first drill bushing mounting hole, a second drill bushing mounting hole and a limiting bulge, the cross section of the limiting bulge is in an arch shape with a major arc, the central line of the first drill bushing mounting hole, the central line of the second drill bushing mounting hole and the axis of the limiting bulge are in the same plane, the side surfaces of the upper die body close to the two ends are respectively processed with a first mounting through hole, one side surface of the lower die body is processed with a second workpiece mounting groove, the bottom of the second workpiece mounting groove is processed with a first drill bit through hole and a second drill bit through hole, the central line of the first drill bit through hole and the central line of the second drill bit through hole are arranged in parallel, the side surfaces of the lower die body close to the two ends are respectively processed with a second mounting through hole, and the, each first mounting through hole is correspondingly arranged with one second mounting through hole, each bolt is inserted into one first mounting through hole and one second mounting through hole, a nut is mounted on each bolt in a threaded connection mode, a first drill bushing is mounted on each first drill bushing mounting hole, a second drill bushing is mounted on each second drill bushing mounting hole, the first drill bushing mounting holes are correspondingly arranged with the first drill bit through holes, and the second drill bushing mounting holes are correspondingly arranged with the second drill bit through holes.

The invention has the beneficial effects that:

1. the sheet part with the boss is accurately positioned and clamped, so that the technical problem of difficult clamping is overcome, the requirement of batch production of the part is met, and the processing precision is ensured. The clamp is simple in structure, fast in clamping, short in machining period and high in production efficiency, clamping, fixing, machining and drilling are carried out by using the clamp, the working efficiency is improved by 20% -50%, and the clamp can be popularized to the machining technology.

Drawings

Fig. 1 is a front view of a workpiece to be machined mounted on the overall structure of the present invention.

Fig. 2 is a front view of the lower mold body 5.

Fig. 3 is a right sectional view of fig. 2.

Fig. 4 is a front view of the upper mold body 1.

Fig. 5 is a right side sectional view of fig. 4.

Detailed Description