阅读说明：本技术 一种连接法兰盘与套管的压装夹具及其使用方法 (Press-fitting clamp for connecting flange plate and sleeve and using method thereof ) 是由 胡义华 李奇 欧长高 邓捷广 曹友兵 吴紫光 龙娟 章来 辛晨添 于 2021-07-28 设计创作，主要内容包括：本发明涉及一种连接法兰盘与套管的压装夹具及其使用方法,压装夹具包括上模板、下模板,下模板的一侧设有法兰盘下定位装置,上模板的一侧设有法兰盘上定位装置；法兰盘下定位装置包括下定位板,下定位销,下防转销,下中心销和下防错销,所述下定位板固定安装在下模板中心位置,下中心销与下模板、下定位板过盈配合,下防转销与下模板、下定位板过盈配合；法兰盘上定位装置包括上定位板,上定位销,上防转销,上防错销,转角气缸,所述上定位板通过过盈配合安装在上模板中心位置,上防转销与上模板、上定位板过盈配合。该夹具能确保每次连接法兰盘与套管压装后的相关尺寸控制在产品图纸范围内,克服了此类焊接夹具的使用瓶颈,提高了生产效率。(The invention relates to a press-fitting clamp for connecting a flange plate and a sleeve and a use method thereof, wherein the press-fitting clamp comprises an upper template and a lower template, wherein one side of the lower template is provided with a lower flange positioning device, and one side of the upper template is provided with an upper flange positioning device; the lower flange plate positioning device comprises a lower positioning plate, a lower positioning pin, a lower anti-rotation pin, a lower center pin and a lower anti-error pin, the lower positioning plate is fixedly arranged at the center position of the lower template, the lower center pin is in interference fit with the lower template and the lower positioning plate, and the lower anti-rotation pin is in interference fit with the lower template and the lower positioning plate; the flange plate upper positioning device comprises an upper positioning plate, an upper positioning pin, an upper anti-rotation pin, an upper anti-mistake pin and a corner cylinder, wherein the upper positioning plate is arranged at the central position of an upper template through interference fit, and the upper anti-rotation pin is in interference fit with the upper template and the upper positioning plate. The fixture can ensure that the relevant size of the connecting flange and the sleeve after press mounting is controlled within the product drawing range every time, overcomes the use bottleneck of the welding fixture and improves the production efficiency.)

1. A press-fitting clamp for connecting a flange plate and a sleeve comprises an upper template (6), a lower template (1), and a guide pillar (11) and a guide sleeve (12) which are arranged between the upper template (6) and the lower template (1), and is characterized in that one side of the lower template (1) is provided with a lower flange plate positioning device, and one side of the upper template (6) is provided with an upper flange plate positioning device;

the lower flange plate positioning device comprises a lower positioning plate (2), a lower positioning pin (3), a lower anti-rotation pin (18), a lower center pin (4) and a lower anti-mistake pin (5), wherein the lower positioning plate (2) is fixedly arranged at the central position of the lower template (1), the lower center pin (4) is in interference fit with the lower template (1) and the lower positioning plate (2), and the lower anti-rotation pin (18) is in interference fit with the lower template (1) and the lower positioning plate (2) to prevent the lower positioning plate (2) from rotating in the using process;

the flange plate upper positioning device comprises an upper positioning plate (7), an upper positioning pin (8), an upper anti-rotation pin (9), an upper anti-mistake pin (10) and a corner cylinder (16), wherein the upper positioning plate (7) is installed at the central position of an upper template (6) through interference fit, and the upper anti-rotation pin (9) is in interference fit with the upper template (6) and the upper positioning plate (7) to prevent the upper positioning plate (7) from rotating in the using process.

2. A press-fitting jig for connecting a flange plate and a sleeve according to claim 1, characterized in that the lower positioning pin (3), the lower center pin (4) and the lower mistake proofing pin (5) are installed on the lower positioning plate (2) and are in interference fit with the lower template (1).

3. A press-fitting jig for connecting a flange plate and a sleeve according to claim 1, characterized in that the upper positioning pin (8), the upper anti-rotation pin (9) and the upper anti-mistake pin (10) are installed on the upper positioning plate (7) and are in interference fit with the upper die plate (6).

4. The press-fitting fixture for connecting the flange plate and the sleeve according to claim 1, wherein the guide post (11) is mounted on the lower template (1) through interference fit, and the guide sleeve (12) is mounted on the upper template (6) through interference fit; the guide sleeve (12) is of a hollow structure, the guide sleeve (12) is sleeved on the outer side of the guide post (11), and the protrusion on the guide post (11) corresponds to the inner hole of the guide sleeve (12).

5. A press-fitting jig for connecting a flange plate and a sleeve according to claim 1, characterized in that the upper die plate (6) is provided with a threaded hole, the manual valve mounting plate (15) is connected with the threaded hole of the upper die plate (6) by a bolt, and the manual valve (17) is mounted on the manual valve mounting plate (15).

6. The press fitting clamp for connecting the flange plate and the sleeve according to claim 1, wherein open grooves are formed in the upper template (6) and the lower template (1), the upper template (7) is fixed above an oil press by the upper T-shaped stud (13) through nuts in the open grooves of the upper template (7), and the lower template (1) is fixed on a platform below the oil press by the lower T-shaped stud (14) through nuts in the open grooves of the lower template (1).

7. A press-fitting jig for connecting a flange and a sleeve according to claim 1, characterized in that the number of the corner cylinders (16) is plural, and the corner cylinders (16) are connected to different positions of the upper positioning plate (7) by bolts.

8. A use method of a press-fitting clamp for connecting a flange plate and a sleeve is characterized by comprising the following steps:

s1, mounting a connecting flange plate and a sleeve press-mounting clamp on an oil press;

s2, starting the oil press to enable the oil press to drive the positioning device on the connecting flange plate to move upwards;

s3, placing the connecting flange (19) at one end into a groove of the lower positioning plate (2), inserting the lower positioning pin (3) into a first hole (191) of the connecting flange for positioning, and inserting the lower error-proofing pin (5) into a second hole (192) of the connecting flange and a third hole (193) of the connecting flange respectively for error proofing;

s4, placing the other end connecting flange (19) into a groove of an upper positioning plate (7), inserting an upper positioning pin (8) into a first hole (191) of the end connecting flange for positioning, and inserting the end of an upper error-proofing pin (10) into a second hole (192) of the connecting flange and a third hole (193) of the connecting flange for error proofing respectively; the manual valve (17) is shifted, and the outer end face of the connecting flange (19) is tightly attached to the plane of the upper positioning plate (7) by the connecting flange (19) under the action of the corner cylinder (16);

s5, placing the sleeve (20) at the press-in end of the lower connecting flange plate (19);

s6, a pedal of a descending oil press is stepped to enable an upper connecting flange plate and a lower connecting flange plate (19) to be pressed into a sleeve (20) respectively, and the relevant sizes of the connecting flange plate (19) and the sleeve (20) are consistent with a drawing;

s7, the manual control valve (17) is pulled, so that the corner cylinder (16) loosens the clamping of the connecting flange plate (19);

s8, loosening a pedal of the oil press, driving the positioning device on the connecting flange plate to move upwards by the oil press, and taking out the workpiece.

Technical Field

The invention relates to the technical field of welding processing equipment, in particular to a press-fitting clamp for connecting a flange plate and a sleeve and a using method thereof.

Background

The left and right support arms in the rear axle assembly are connected with the bridge pipe welding assembly through the connecting flange discs, the brake assembly is connected to the left and right support arms left and right, the length of the bridge pipe welding assembly and the coaxiality of the connecting section connecting flange discs can influence the whole vehicle assembly, and the existing tool fixtures can not realize the press mounting of the bridge pipe welding assembly; for example, application number 201220674358.9, the patent name is a utility model patent of anchor clamps that processing motor end cover was used, and it includes sleeve pipe, ring flange, end plate, dabber, clamp cover and pull rod, the ring flange is established at the sleeve pipe internally, sleeve pipe and ring flange threaded connection, and the end plate is installed in the intraductal port of sleeve, the ring flange axial is hollow, and the end plate axial is hollow, and the dabber inner passes the end plate and installs on the ring flange to guarantee dabber and end plate, ring flange be in same axial lead, the dabber is equipped with logical groove in radial. The clamp structure is mainly used for splicing and mounting the motor end cover, and the length of a bridge pipe welding assembly and the coaxiality of a connecting section connecting flange plate are ensured by a press-fitting clamp structure specially aiming at the connecting flange plate and a sleeve at present.

Therefore, it is particularly important to design a clamp for press-fitting a connecting flange plate and a sleeve, so as to ensure production and product quality by press-fitting the connecting flange plate and the sleeve.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a press-fitting clamp for connecting a flange plate and a sleeve and a using method thereof.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a press-fitting clamp for connecting a flange plate and a sleeve comprises an upper template, a lower template, a guide pillar and a guide sleeve, wherein the guide pillar and the guide sleeve are arranged between the upper template and the lower template;

the lower flange plate positioning device comprises a lower positioning plate, a lower positioning pin, a lower anti-rotation pin, a lower center pin and a lower anti-error pin, the lower positioning plate is fixedly arranged at the center position of the lower template, the lower center pin is in interference fit with the lower template and the lower positioning plate, and the lower anti-rotation pin is in interference fit with the lower template and the lower positioning plate to prevent the lower positioning plate from rotating in the use process;

the flange plate upper positioning device comprises an upper positioning plate, an upper positioning pin, an upper anti-rotation pin, an upper error-proofing pin and a corner cylinder, wherein the upper positioning plate is arranged at the central position of an upper template through interference fit, and the upper anti-rotation pin is in interference fit with the upper template and the upper positioning plate to prevent the upper positioning plate from rotating in the using process.

Further, the lower positioning pin, the lower center pin and the lower mistake-proofing pin are arranged on the lower positioning plate and are in interference fit with the lower template.

Furthermore, the upper positioning pin, the upper anti-rotation pin and the upper anti-mistake pin are arranged on the upper positioning plate and are in interference fit with the upper template.

Further, the guide post is arranged on the lower template in an interference fit manner, and the guide sleeve is arranged on the upper template in an interference fit manner; the guide sleeve is of a hollow structure, the guide sleeve is sleeved on the outer side of the guide pillar, and the protrusion on the guide pillar corresponds to the inner hole of the guide sleeve.

Furthermore, a threaded hole is formed in the upper template, the manual valve mounting plate is connected with the threaded hole of the upper template through a bolt, and the manual valve is mounted on the manual valve mounting plate.

Furthermore, open slots are respectively formed in the upper template and the lower template, the upper template is fixed above the oil press through nuts on the open slots of the upper template by the upper T-shaped studs, and the lower template is fixed on a platform below the oil press through nuts on the open slots of the lower template by the lower T-shaped studs.

Furthermore, the number of the corner cylinders is multiple, and the corner cylinders are connected to different positions of the upper positioning plate through bolts.

Further, a use method of the press-fitting clamp for connecting the flange plate and the sleeve is characterized by comprising the following steps:

s1, mounting a connecting flange plate and a sleeve press-mounting clamp on an oil press;

s2, starting the oil press to enable the oil press to drive the positioning device on the connecting flange plate to move upwards;

s3, placing the connecting flange plate at one end into a groove of the lower positioning plate, inserting the lower positioning pin into a first hole of the connecting flange plate for positioning, and inserting the lower error-proofing pin into a second hole of the connecting flange plate and a third hole of the connecting flange plate respectively for error proofing;

s4, placing the connecting flange plate at the other end into a groove of the upper positioning plate 7, inserting an upper positioning pin into a first hole of the connecting flange plate at the other end for positioning, and inserting the end of an upper error-proofing pin into a second hole of the connecting flange plate and a third hole of the connecting flange plate respectively for error proofing; the manual valve is shifted, and the outer end face of the connecting flange plate is tightly attached to the plane of the upper positioning plate under the action of the corner cylinder;

s5, placing the sleeve below the press-in end of the connecting flange plate;

s6, a pedal of a descending oil press is stepped to enable an upper connecting flange plate and a lower connecting flange plate to be respectively pressed into the sleeve, and the relevant sizes of the connecting flange plate and the sleeve are consistent with that of a drawing;

s7, toggling the manual control valve to enable the corner cylinder to loosen the clamping of the connecting flange plate;

s8, loosening a pedal of the oil press, driving the positioning device on the connecting flange plate to move upwards by the oil press, and taking out the workpiece.

The invention has the beneficial effects that: the fixture can ensure that the relevant size of the connecting flange and the sleeve after press mounting is controlled within the product drawing range every time, overcomes the use bottleneck of the welding fixture and improves the production efficiency.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 taken along direction A;

FIG. 3 is a schematic view of the structure of FIG. 1 in the direction B;

FIG. 4 is a schematic front view of a bridge pipe welding assembly according to the present invention;

FIG. 5 is a schematic structural view of an axle tube welding assembly A-A of FIG. 4 according to the present invention;

FIG. 6 is a schematic structural view of a bridge tube welding assembly B-B shown in FIG. 4 according to the present invention;

FIG. 7 is a schematic structural view of a bridge tube welding assembly C-C in FIG. 4 according to the present invention.

In the figure: the anti-misoperation device is composed of a lower template 1, a lower positioning plate 2, a lower positioning pin 3, a lower center pin 4, a lower anti-misoperation pin 5, an upper template 6, an upper positioning plate 7, an upper positioning pin 8, an upper anti-rotation pin 9, an upper anti-misoperation pin 10, a guide pillar 11, a guide sleeve 12, an upper T-shaped stud 13, a lower T-shaped stud 14, a manual control valve mounting plate 15, a corner cylinder 16, a manual control valve 17, a lower anti-rotation pin 18, a connecting flange 19, a sleeve 20, a first hole 191 of the connecting flange, a second hole 192 of the connecting flange and a third hole 193 of the connecting flange.

Detailed Description

As shown in fig. 1 to 7, a press-fitting fixture for connecting a flange plate and a sleeve comprises an upper template 6, a lower template 1, a guide post 11 and a guide sleeve 12, wherein the guide post 11 and the guide sleeve 12 are installed between the upper template 6 and the lower template 1, a flange plate lower positioning device is arranged on one side of the lower template 1, and a flange plate upper positioning device is arranged on one side of the upper template 6;

the lower flange plate positioning device comprises a lower positioning plate 2, a lower positioning pin 3, a lower anti-rotation pin 18, a lower center pin 4 and a lower anti-mistake pin 5, wherein the lower positioning plate 2 is fixedly arranged at the center of the lower template 1, the lower center pin 4 is in interference fit with the lower template 1 and the lower positioning plate 2, and the lower anti-rotation pin 18 is in interference fit with the lower template 1 and the lower positioning plate 2 to prevent the lower positioning plate 2 from rotating in the using process;

the flange plate upper positioning device comprises an upper positioning plate 7, an upper positioning pin 8, an upper anti-rotation pin 9, an upper anti-mistake pin 10 and a corner cylinder 16, wherein the upper positioning plate 7 is arranged at the center of an upper template 6 in an interference fit manner, and the upper anti-rotation pin 9 is in interference fit with the upper template 6 and the upper positioning plate 7 to prevent the upper positioning plate 7 from rotating in the using process.

The lower positioning pin 3, the lower center pin 4 and the lower error-proofing pin 5 are arranged on the lower positioning plate 2 and are in interference fit with the lower template 1, and the upper positioning pin 8, the upper anti-rotation pin 9 and the upper error-proofing pin 10 are arranged on the upper positioning plate 7 and are in interference fit with the upper template 6.

The guide post 11 is arranged on the lower template 1 in an interference fit manner, and the guide sleeve 12 is arranged on the upper template 6 in an interference fit manner; the guide sleeve 12 is of a hollow structure, the guide sleeve 12 is sleeved on the outer side of the guide post 11, and a protrusion on the guide post 11 corresponds to an inner hole of the guide sleeve 12.

The upper die plate 6 is provided with a threaded hole, the manual valve mounting plate 15 is connected with the threaded hole of the upper die plate 6 through a bolt, and the manual valve 17 is mounted on the manual valve mounting plate 15.

Furthermore, open slots are respectively arranged on the upper template 6 and the lower template 1, the upper template 7 is fixed above the oil press by the upper T-shaped stud 13 through nuts on the open slots of the upper template 7, and the lower template 1 is fixed on a platform below the oil press by the lower T-shaped stud 14 through nuts on the open slots of the lower template 1. The number of the corner cylinders 16 is multiple, and the corner cylinders 16 are connected to different positions of the upper positioning plate 7 through bolts.

A use method of a press-fitting clamp for connecting a flange plate and a sleeve comprises the following steps:

s1, mounting a connecting flange plate and a sleeve press-mounting clamp on an oil press;

s2, starting the oil press to enable the oil press to drive the positioning device on the connecting flange plate to move upwards;

s3, placing the connecting flange plate 19 at one end into a groove of the lower positioning plate 2, inserting the lower positioning pin 3 into a first hole 191 of the connecting flange plate for positioning, and inserting the lower error-proofing pin 5 into a second hole 192 of the connecting flange plate and a third hole 193 of the connecting flange plate respectively for error proofing;

s4, placing the other end connecting flange 19 into a groove of the upper positioning plate 7, inserting the upper positioning pin 8 into a first hole 191 of the end connecting flange for positioning, and inserting the upper error-proofing pin 10 into a second hole 192 of the end connecting flange and a third hole 193 of the connecting flange for error proofing; the manual valve 17 is shifted, and the outer end face of the connecting flange plate 19 is tightly attached to the plane of the upper positioning plate 7 by the connecting flange plate 19 under the action of the corner cylinder 16;

s5, placing the sleeve 20 at the press-in end of the lower connecting flange 19;

s6, a pedal of a descending oil press is stepped to enable an upper connecting flange plate 19 and a lower connecting flange plate 19 to be pressed into a sleeve 20 respectively, and the relevant sizes of the connecting flange plates 19 and the sleeve 20 are consistent with the drawing;

s7, toggling the manual control valve 17 to enable the corner cylinder 16 to loosen the clamping of the connecting flange plate 19;

s8, loosening a pedal of the oil press, driving the positioning device on the connecting flange plate to move upwards by the oil press, and taking out the workpiece.

The fixture can ensure that the relevant size of the connecting flange and the sleeve after press mounting is controlled within the product drawing range every time, overcomes the use bottleneck of the welding fixture and improves the production efficiency.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.