CN113414529B - A high-precision automobile subframe fixture - Google Patents
A high-precision automobile subframe fixture Download PDFInfo
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- CN113414529B CN113414529B CN202011100583.7A CN202011100583A CN113414529B CN 113414529 B CN113414529 B CN 113414529B CN 202011100583 A CN202011100583 A CN 202011100583A CN 113414529 B CN113414529 B CN 113414529B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a high-precision automobile auxiliary frame clamp which comprises a base, a left clamp group and a right clamp group, wherein the left clamp group and the right clamp group are arranged on the base, the left clamp group and the right clamp group are distributed and clamped along the outer edge of an auxiliary frame, the left clamp group and the right clamp group are consistent in structure and mirror symmetry by taking a middle plate of the auxiliary frame as a center, and the left clamp group comprises a middle plate clamping unit, an upper butterfly plate clamping unit and a lower butterfly plate clamping unit; according to the invention, the middle clamping unit, the upper butterfly plate clamping unit and the lower butterfly plate clamping unit are adopted to clamp each part of the auxiliary frame, so that shaking is avoided, the clamping stability is realized, and the welding of various workpieces is facilitated.
Description
Technical Field
The invention belongs to the field of automobile workpiece clamps, and particularly relates to a high-precision automobile auxiliary frame clamp.
Background
The subframe may be considered as the backbone of the front and rear axles, which are integral parts of the front and rear axles. The auxiliary frame is not an intact frame, but only supports the front and rear axles and the suspended brackets, so that the axles and the suspended brackets are connected with the positive frame through the auxiliary frame, and the auxiliary frame has the effects of blocking vibration and noise and reducing the vibration and noise from directly entering the carriage, so that the auxiliary frame is mostly arranged on luxurious cars and off-road vehicles, and some vehicles are also provided with auxiliary frames for engines.
As shown in fig. 7, the subframe has a bilaterally symmetrical structure, and includes a middle plate, an upper butterfly plate and a lower butterfly plate disposed at two ends of the middle plate, and in order to support the front and rear axles, reinforcing rib plates are welded on the upper butterfly plate and the lower butterfly plate, the reinforcing rib plates are curved vertical plates, the front ends of the vertical plates are provided with downward flanges, the downward flanges and the subframe are provided with corresponding mounting holes, and the rear ends of the downward flanges are provided with upward flanges.
At present, the auxiliary frame needs to be welded in the production process, the frame needs to be fixed by using a fixing device in the welding process, absolute stability of the auxiliary frame needs to be guaranteed in the whole process, otherwise, the welding quality of the auxiliary frame can be influenced, and once the auxiliary frame is welded, the auxiliary frame is extremely easy to damage in the use process.
The prior fixing device is used for fixing the auxiliary frame through a fixed groove body or clamping through a simple clamping piece; the former is inconvenient to operate, especially aims at the auxiliary frame with different sizes, and the latter is insufficient in clamping force on the auxiliary frame, and the auxiliary frame is easy to shake in the welding process.
The current patent is found in application number 201510923190.9, invention name: the polygonal auxiliary frame compressing device comprises a base, wherein a plurality of corner compressing mechanisms and supporting mechanisms are arranged on the top of the base; the corner compacting mechanism comprises a first driving unit, a supporting plate and a pressing rod, wherein the first driving unit and the supporting plate are arranged on the top of the base, and the pressing rod is hinged to a driving rod of the first driving unit; the supporting mechanism comprises a supporting seat arranged on the top of the base, a fixing groove is formed in the top of the supporting seat, and a clamping rod is fixed on the fixing groove through a fixing piece; under the condition that the auxiliary frame is placed at the top of the supporting plate, the first driving unit can drive the driving rod to move so that the bottom of the pressing rod can abut against the corner of the top of the auxiliary frame and the driving rod and the pressing rod are fixed through the fixing piece, and the clamping rod can move along the fixing groove to abut against the side edge of the auxiliary frame and the supporting seat and the clamping rod are fixed through the locating piece. The scheme realizes absolute stability of the auxiliary frame, but the workpiece still needs to be held by hand when the reinforcing rib plate is welded, and the workpiece to be welded is not stabilized, so that the welding precision is affected.
Disclosure of Invention
The invention aims to solve the technical problems and provide the high-precision automobile auxiliary frame clamp which is stable in clamping and high in machining precision.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A high-precision automobile auxiliary frame clamp comprises a base, a left clamp group and a right clamp group, wherein the left clamp group and the right clamp group are arranged on the base; the left clamp group and the right clamp group are distributed and clamped along the outer edge of the auxiliary frame, and the left clamp group and the right clamp group are consistent in structure and mirror symmetrical by taking the middle plate of the auxiliary frame as the center; the left clamp group comprises a middle plate clamping unit, an upper butterfly plate clamping unit and a lower butterfly plate clamping unit; the upper butterfly plate clamping unit comprises an L-shaped pressing strip I, a driving device I for driving the L-shaped pressing strip I to press and loosen up and down, a mounting hole positioning device and a reinforcing rib plate induction clamping device; the driving device I is arranged on the base, and the mounting hole positioning device comprises an upper pressing block I, a telescopic positioning pin I, an air cylinder I and a support I which are aligned with the mounting hole of the upper butterfly plate; the upper pressing block I is arranged above the upper butterfly plate mounting hole and is fixedly connected with one end of the L-shaped pressing block I; the telescopic locating pin I is arranged right below the upper butterfly plate mounting hole, is connected with the air cylinder I and is driven by the air cylinder I to stretch up and down, the air cylinder I is arranged in the support I, and the support I is fixed on the base; the induction clamping device for the reinforcing rib plate comprises an upper pressing frame for pressing the downward flanging of the reinforcing rib plate, a thimble, an L-shaped upper pressing block II, a mounting frame I, a spring, an annular card and an inductor; the upper pressing frame, the ejector pin and the upper pressing block II are arranged right above the lower flanging of the reinforced rib plate; the upper pressing frame, the ejector pin and the upper pressing block II are respectively provided with a lower pressing block I, a lower pressing block II and a lower pressing block III which are matched and pressed with the upper pressing frame, the ejector pin and the upper pressing block II, and the lower pressing block I, the lower pressing block II and the lower pressing block III are fixedly connected with the base; the upper pressing frame is fixedly connected with the other end of the L-shaped pressing strip I, the mounting frame I is arranged on one side of the upper pressing frame, and the upper pressing block II is arranged on the other side of the upper pressing frame; the mounting frame I is an inverted F-shaped structure consisting of a vertical plate and two transverse plates; the sensor is arranged at the upper end of the vertical plate of the installation frame I, the thimble penetrates through the transverse plates of the two installation frames I to be vertically arranged, the spring and the annular card are arranged on the thimble and positioned between the two transverse plates, the upper end of the spring is fixedly connected with the upper transverse plate, the lower end of the spring is fixedly connected with the annular card, and the annular card is fixedly clamped on the thimble; when the ejector pin is pressed on the lower turnup of the reinforced rib plate, the spring is compressed until the upper end of the ejector pin is leveled with the detection head of the sensor; when the reinforced rib plate is not arranged below the ejector pin, the spring is restored, and the detection head of the sensor is higher than the top end of the ejector pin.
As a further technical scheme, the lower butterfly plate clamping unit comprises an L-shaped pressing strip II and a driving device II for driving the pressing strip II to press and loosen up and down, wherein the driving device II is arranged on the base; one side of the L-shaped pressing strip II is aligned with the lower edge of the lower butterfly plate, and the lower surface of the side is provided with an upper pressing block III for pressing the upper flanging of the reinforcing rib plate and an upper pressing block IV for pressing the lower butterfly plate; the other side of the L-shaped pressing strip II extends to the joint of the upper butterfly plate and the lower butterfly plate, and the lower surface of the side is provided with an upper pressing block V for pressing the lower butterfly plate; the lower pressing block IV, the lower pressing block V and the lower pressing block VI which are matched and pressed with the upper pressing block III, the upper pressing block IV and the upper pressing block V are respectively arranged below the upper pressing block III, the upper pressing block IV and the upper pressing block V; the lower surface of the lower pressing block IV is also provided with a rear clamping block I for clamping the reinforcing rib plate vertical plate, the rear clamping block I is fixed on the base, and the front clamping block I for clamping the reinforcing rib plate vertical plate is arranged in front of the rear clamping block I; the front clamping block I is connected with the upper pressing block IV, a lower pressing block VII which is matched with the front clamping block I and used for tightly pressing the lower butterfly plate is further arranged below the front clamping block I, and the lower pressing block VII is fixed on the base through a corresponding support II.
As a further technical scheme, the distance between the front clamping block I and the rear clamping block I is the same as the thickness of the reinforcing rib plate vertical plate.
As a further technical scheme, above the intermediate plate clamping unit, including Z shape layering and drive Z shape layering compress tightly from top to bottom and loosen drive arrangement III, drive arrangement III installs on the base, the last hem joint of Z shape layering is at the lateral wall edge of intermediate plate, and the lower surface of the lower horizontal limit of Z shape layering is equipped with the last briquetting VI that compresses tightly the intermediate plate, go up briquetting VI and be the double-folded strip structure that extends to the rear end from the front end of intermediate plate, the below of going up briquetting VI is equipped with the lower briquetting VIII that matches the compaction with it, and this lower briquetting VIII is fixed on the base.
As a further technical scheme, between the upper butterfly plate clamping unit and the lower butterfly plate clamping unit, an auxiliary positioning unit is further arranged, the auxiliary positioning unit comprises a positioning vertical plate and a bottom plate, the positioning vertical plate is fixed on the base through the bottom plate, an L-shaped positioning block is arranged on the front surface of the positioning vertical plate, and the L-shaped positioning block is abutted to the reinforcing rib plate vertical plate.
As a further technical scheme, a welding slag protection seat is arranged at the rear of the positioning vertical plate, and a welding slag protection plate is arranged on the surface of the welding slag protection seat.
As a further technical scheme, the driving device I, the driving device II and the driving device III are all driven by air cylinders.
As a further technical scheme, the sensor adopts an infrared sensor.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the middle clamping unit, the upper butterfly plate clamping unit and the lower butterfly plate clamping unit are adopted to clamp each part of the auxiliary frame, so that shaking is avoided, the clamping stability is realized, and the welding of the rib plates is convenient to strengthen.
2. The upper butterfly plate clamping unit and the lower butterfly plate clamping unit can clamp and position the reinforcing rib plates to be welded while clamping the auxiliary frame, so that the welding processing precision of the auxiliary frame is improved.
3. According to the upper butterfly plate clamping unit, one end of the L-shaped pressing strip I is accurately positioned and clamped by adopting the telescopic positioning pin and the upper pressing block I aiming at the upper butterfly plate mounting hole, and the other end of the L-shaped pressing strip I is firmly pressed on the lower flanging of the reinforcing rib plate through the thimble, the upper pressing frame and the upper pressing block II of the reinforcing rib plate induction clamping device, so that the whole reinforcing rib plate is firmly pressed on the upper butterfly plate, and the welding machining precision is improved.
4. The lower butterfly plate clamping unit is provided with the upper pressing block II and the lower pressing block I which aim at the upper flanging of the reinforcing rib plate, the upper flanging of the reinforcing rib plate is clamped, the rear clamping block I and the front clamping block I which aim at the vertical plate of the reinforcing rib plate are provided, the vertical plate of the reinforcing rib plate is clamped, the clamping stability of the reinforcing rib plate is realized from all directions up and down, the lower butterfly plate is synchronously pressed while the reinforcing rib plate is clamped, and the reinforcing rib plate is accurately and stably welded on the auxiliary frame by being matched with the accurate positioning of the upper butterfly plate clamping unit.
5. The invention also designs an auxiliary positioning unit, and the L-shaped positioning block is adopted to support the middle part of the vertical plate of the reinforcing rib plate in an abutting way, so that the welding stability is further improved.
6. According to the middle plate clamping unit, the upper folded edge of the Z-shaped pressing strip is clamped at the edge of the side wall of the middle plate, so that the auxiliary frame is prevented from shifting; the upper pressing block V extends from the front end to the rear end of the middle plate and is matched with the corresponding lower pressing block IV to tightly press and position the whole middle plate, so that the clamping stability of the auxiliary frame is realized.
Drawings
FIG. 1 is a schematic view of a high-precision automotive subframe fixture according to the present invention;
Fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic diagram of the driving device I of the upper butterfly plate clamping unit of the present invention;
FIG. 4 is a schematic diagram of a driving device II of the lower butterfly plate clamping unit of the present invention;
FIG. 5 is a schematic view of the lower butterfly plate clamping unit of the present invention after hiding the power device;
FIG. 6 is a schematic view of the structure of the thimble of the present invention;
fig. 7 is a clamping state diagram of a high-precision automobile subframe clamp according to the invention.
1-Upper butterfly plate clamping unit, 1.1-mounting frame II, 1.2-cylinder I, 1.3-clamping block I, 1.4-clamping arm I, 1.5-L-shaped pressing strip I, 1.6-upper pressing block I, 1.7-telescopic locating pin I, 1.8-support I, 1.9-upper pressing frame, 1.10-thimble, 1.11-upper pressing block II, 1.12-mounting frame I, 1.13-spring, 1.14-annular card, 1.15-inductor, 1.16-lower pressing block I, 1.17-lower pressing block II and 1.18-lower pressing block III.
A 2-lower butterfly plate clamping unit, a 2.1-mounting frame III, a 2.2-cylinder II, a 2.3-clamping block II, a 2.4-clamping arm II, a 2.5-L-shaped pressing strip II, a 2.6-upper pressing block III, a 2.7-upper pressing block IV, a 2.8-upper pressing block V, a 2.9-lower pressing block IV, a 2.10-lower pressing block V, a 2.11-lower pressing block VI, a 2.12-rear clamping block I, a 2.13-front clamping block I, a 2.14-lower pressing block VII and a 2.15-support II;
3-middle plate clamping units, 3.1-driving devices III, 3.2-Z-shaped pressing strips, 3.3-upper pressing blocks VI and 3.4-lower pressing blocks VIII;
The welding slag protection device comprises a 4-auxiliary positioning unit, a 4.1-bottom plate, a 4.2-positioning vertical plate, a 4.3-welding slag protection seat and a 4.4-L-shaped positioning block;
5-a base; 6-auxiliary frames, 6.1-middle plates, 6.2-upper butterfly plates, 6.3-lower butterfly plates and 6.4-upper butterfly plate mounting holes;
7-reinforcing rib plates, 7.1-reinforcing rib plate downward flanging, 7.2-reinforcing rib plate vertical plates and 7.3-reinforcing rib plate upward flanging;
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited to the scope indicated by the examples.
In the invention, the auxiliary frame 6 and the reinforcing rib plate 7 are conventional welding parts in the prior art, the reinforcing rib plate 7 comprises a reinforcing rib plate vertical plate 7.2, a reinforcing rib plate upturn 7.3 and a reinforcing rib plate downturn 7.1, the reinforcing rib plate upturn 7.3 and the reinforcing rib plate downturn 7.1 are respectively connected with the reinforcing rib plate vertical plate 7.2, when in welding, the reinforcing rib plate upturn 7.3 is positioned at the lower butterfly plate 6.3 of the auxiliary frame 6, and the reinforcing rib plate downturn 7.1 is positioned at the upper butterfly plate 6.2 of the auxiliary frame 6.
Example 1:
The high-precision automobile auxiliary frame clamp comprises a base 5, and a left clamp group and a right clamp group which are arranged on the base 5, wherein the left clamp group and the right clamp group are distributed and clamped along the outer edge of an auxiliary frame 6, the left clamp group and the right clamp group are consistent in structure and mirror symmetrical by taking a middle plate 6.1 of the auxiliary frame 6 as a center, and the left clamp group comprises a middle plate clamping unit 3, an upper butterfly plate clamping unit 1 and a lower butterfly plate clamping unit 2; The upper butterfly plate clamping unit 1 comprises an L-shaped pressing strip I1.5, a driving device I (namely an air cylinder I), a mounting hole positioning device and a reinforcing rib plate 7 induction clamping device, wherein the driving device I drives the L-shaped pressing strip I1.5 to press and loosen up and down, the driving device I is arranged on a base 5 and comprises a mounting frame II 1.1, an air cylinder I1.2, a clamping block I1.3 and a clamping arm I1.4, the mounting frame II 1.1 is arranged on the base 5, the air cylinder I1.2 is vertically arranged on the mounting frame II 1.1, the upper end of the air cylinder I1.2 is connected with the clamping block I1.3, the clamping block I1.3 horizontally clamps or loosens the replaceable clamping arm I1.4, and the clamping arm I1.4 is connected with the mounting hole positioning device of the L-shaped pressing strip I1.5 and comprises an upper pressing block I1.6 aligning with the mounting hole 6.4 of the upper butterfly plate, the telescopic positioning pin I1.7, the air cylinder I1.2 and the support I1.8 are arranged above the upper butterfly plate mounting hole 6.4, and the upper pressing block I1.6 is fixedly connected with one end of the L-shaped pressing strip I1.5; The telescopic locating pin I1.7 is arranged right below the upper butterfly plate mounting hole 6.4, the telescopic locating pin I1.7 is connected with the air cylinder I1.2 and driven by the air cylinder I1.2 to extend up and down, the air cylinder I1.2 is arranged in the support I1.8, and the support I1.8 is fixed on the base 5; the induction clamping device of the reinforcing rib plate 7 comprises an upper pressing frame 1.9 for pressing the lower flanging 7.1 of the reinforcing rib plate, a thimble 1.10, an L-shaped upper pressing block II 1.11, a mounting frame I1.12, a spring 1.13, an annular clamping piece 1.14 and an inductor 1.15, wherein the upper pressing frame 1.9, the thimble 1.10 and the upper pressing block II 1.11 are arranged right above the lower flanging 7.1 of the reinforcing rib plate, the upper pressing frame 1.9, the thimble 1.10 and the upper pressing block II 1.11 are respectively provided with a lower pressing block I1.16, a lower pressing block II 1.17 and a lower pressing block III 1.18 which are matched and pressed with the upper pressing frame, and the lower pressing block I1.16, the lower pressing block II 1.17 and the lower pressing block III 1.18 are fixedly connected with the base 5; the upper pressing frame 1.9 is fixedly connected with the other end of the L-shaped pressing strip I1.5, the mounting frame I1.12 is arranged on one side of the upper pressing frame 1.9, the upper pressing block II 1.11 is arranged on the other side of the upper pressing frame 1.9, and the mounting frame I1.12 is an inverted F-shaped structure consisting of a vertical plate and two transverse plates; the inductor 1.15 is arranged at the upper end of a vertical plate of the installation frame I1.12, the thimble 1.10 passes through transverse plates of the two installation frames I1.12 to be vertically arranged, the spring 1.13 and the annular card 1.14 are arranged on the thimble 1.10 and are positioned between the two transverse plates, the upper end of the spring 1.13 is fixedly connected with the upper transverse plate, the lower end of the spring 1.13 is fixedly connected with the annular card 1.14, and the annular card 1.14 is fixedly clamped on the thimble 1.10; When the thimble 1.10 is pressed on the turnup 7.1 of the reinforcing rib plate, the spring 1.13 is compressed until the upper end of the thimble 1.10 is leveled with the detection head of the sensor 1.15; when the reinforcing rib 7 is not arranged below the thimble 1.10, the spring 1.13 is restored, and the detection head of the sensor 1.15 is higher than the top end of the thimble 1.10.
The lower butterfly plate clamping unit 2 comprises an L-shaped pressing strip II 2.5 and a driving device II for driving the pressing strip II to press and loosen up and down, wherein the driving device II is arranged on a base 5 and comprises a mounting frame III 2.1, a cylinder II 2.2, a clamping block II 2.3 and a clamping arm II 2.4, the mounting frame III 2.1 is arranged on the base 5, the cylinder II 2.2 is horizontally arranged on the mounting frame III 2.1, the upper end of the cylinder II 2.2 is connected with the clamping block II 2.3, the clamping block II 2.3 horizontally clamps or loosens the replaceable clamping arm II 2.4, the clamping arm II 2.4 is connected with the L-shaped pressing strip II 2.5, one side of the L-shaped pressing strip II 2.5 is aligned with the lower edge of the lower butterfly plate 6.3, and the lower surface of the side is provided with an upper pressing block III 2.6 for pressing a reinforcing rib upper flanging 7.3 and an upper pressing block IV 2.7 for pressing the lower butterfly plate 6.3; the other side of the L-shaped pressing strip II 2.5 extends to the joint of the upper butterfly plate 6.2 and the lower butterfly plate 6.3, and the lower surface of the side is provided with an upper pressing block V2.8 for pressing the lower butterfly plate 6.3; the lower parts of the upper pressing block III 2.6, the upper pressing block IV 2.7 and the upper pressing block V2.8 are respectively provided with a lower pressing block IV 2.9, a lower pressing block V2.10 and a lower pressing block VI 2.11 which are matched and pressed with the upper pressing block III 2.6, the upper pressing block IV 2.7 and the upper pressing block V2.8; the lower surface of the lower pressing block IV 2.9 is also provided with a rear clamping block I2.12 for clamping the reinforcing rib plate vertical plate 7.2, the rear clamping block I2.12 is fixed on the base 5, the front part of the rear clamping block I2.12 is provided with a front clamping block I2.13 for clamping the reinforcing rib plate vertical plate 7.2, the front clamping block I2.13 is connected with the upper pressing block IV 2.7, the lower part of the front clamping block I2.13 is also provided with a lower pressing block VII 2.14 matched with the front clamping block I2.13 to tightly press the lower butterfly plate 6.3, and the lower pressing block VII 2.14 is fixed on the base 5 through a corresponding support II 2.15.
The spacing between the front clamping block I2.13 and the rear clamping block I2.12 is the same as the thickness of the reinforcing rib plate vertical plate 7.2.
The middle plate clamping unit 3 comprises a Z-shaped pressing strip 3.2 and a driving device III 3.1 for driving the Z-shaped pressing strip 3.2 to press and loosen up and down, the driving device III 3.1 is arranged on a base 5, the driving device III 3.1 is arranged on the base 5, the structure of the driving device III 3.1 is the same as that of the driving device II, an upper flange of the Z-shaped pressing strip 3.2 is clamped at the edge of the side wall of the middle plate 6.1, an upper pressing block VI 3.3 for pressing the middle plate 6.1 is arranged on the lower surface of the lower transverse edge of the Z-shaped pressing strip 3.2, the upper pressing block VI 3.3 is of a double-folded strip structure extending from the front end to the rear end of the middle plate 6.1, a lower pressing block VIII 3.4 matched with the upper pressing block VI 3.3 is arranged below the upper pressing block VI 3, and the lower pressing block VIII 3.4 is fixed on the base 5.
An auxiliary positioning unit 4 is further arranged between the upper butterfly plate clamping unit 1 and the lower butterfly plate clamping unit 2, the auxiliary positioning unit 4 comprises a positioning vertical plate 4.2 and a bottom plate 4.1, the positioning vertical plate 4.2 is fixed on the base 5 through the bottom plate 4.1, an L-shaped positioning block 4.4 is arranged on the front surface of the positioning vertical plate 4.2, and the L-shaped positioning block 4.4 is abutted to the reinforcing rib plate vertical plate 7.2.
The rear of the positioning vertical plate 4.2 is provided with a welding slag protection seat 4.3, and the surface of the welding slag protection seat 4.3 is provided with a welding slag protection plate.
The driving device I, the driving device II and the driving device III 3.1 are all driven by air cylinders.
The working principle of the invention is as follows:
As shown in fig. 7, before the subframe 6 and the reinforcing rib 7 are placed, the pressing strips of the upper butterfly plate clamping unit 1, the middle plate clamping unit 3 and the lower butterfly plate clamping unit 2 are all opened, the telescopic positioning pin i 1.7 is extended by the control cylinder, the subframe 6 and the reinforcing rib 7 are sequentially placed, wherein the telescopic positioning pin i 1.7 is inserted into the upper butterfly plate mounting hole 6.4 of the subframe 6, the lower butterfly plate 6.3 is placed on the lower pressing block v 2.10 and the lower pressing block vii 2.14, the reinforcing rib turnup edge 7.1 is placed on the lower pressing block i 1.16, the lower pressing block ii 1.17 and the lower pressing block iii 1.18, and the reinforcing rib turnup edge 7.3 is placed on the lower pressing block iv 2.9.
Then start the cylinder of last butterfly plate clamping unit 1, intermediate lamella clamping unit 3 and lower butterfly plate clamping unit 2, push down the layering to each goes up briquetting and pushes down corresponding briquetting/flexible locating pin down, has realized the firm centre gripping of sub vehicle frame 6 and reinforcing rib 7, and inductor 1.15 senses thimble 1.10 top, and inductor 1.15 gives third party welding equipment and sends welding signal, carries out welding operation again. After the welding is finished, the cylinder is started to open the pressing bar, and the welded auxiliary frame 6 can be taken out.
The transmission mode of the infrared sensor and the third party welding equipment is a conventional connection mode in the field, and the transmission mode of the infrared sensor and the third party welding equipment is not included in the protection scope of the scheme, so that the transmission mode is not described in detail.
In the invention, the middle plate clamping unit 3, the upper butterfly plate clamping unit 1 and the lower butterfly plate clamping unit 2 can be used for adjusting the positions according to the size of the auxiliary frame 6, and the invention is flexible and convenient. The size and the pitch of each module are finely adjusted according to the position of the mounting hole of the subframe 6 and the shape and the size of the reinforcing rib plate 7.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention. It should also be noted that unless explicitly stated or limited otherwise, terms such as "connected," "coupled," and the like should be construed broadly and may be, for example, a fixed connection; may be a detachable connection; or may be a point connection; may be a direct connection; the connection may be indirect through an intermediary, and the communication between the two components may be made, so that the specific meaning of the terms in the present invention may be understood in specific cases by those skilled in the art. The connection modes of the devices, which are not described in detail in the present invention, are all understood in the conventional connection modes in the art.
The above embodiments are merely specific examples for further detailed description of the object, technical solution and advantageous effects of the present invention, and the present invention is not limited thereto. Any modification, equivalent replacement, improvement, etc. made within the scope of the present disclosure are included in the scope of the present invention.
Claims (6)
1. The utility model provides a car sub vehicle frame anchor clamps of high accuracy, includes the base and establishes left anchor clamps group and right anchor clamps group on the base, left anchor clamps group and right anchor clamps group distribute the centre gripping along the outward flange of sub vehicle frame, and the structure of left anchor clamps group and right anchor clamps group is unanimous and use the intermediate lamella of sub vehicle frame as central mirror symmetry, its characterized in that: the left clamp group comprises a middle plate clamping unit, an upper butterfly plate clamping unit and a lower butterfly plate clamping unit; the upper butterfly plate clamping unit comprises an L-shaped pressing strip I, a driving device I for driving the L-shaped pressing strip I to press and loosen up and down, a mounting hole positioning device and a reinforcing rib plate induction clamping device; the driving device I is arranged on the base; the mounting hole positioning device comprises an upper pressing block I, a telescopic positioning pin I, a cylinder I and a support I which are aligned with the mounting hole of the upper butterfly plate; the upper pressing block I is arranged above the upper butterfly plate mounting hole and is fixedly connected with one end of the L-shaped pressing block I; the telescopic locating pin I is arranged right below the upper butterfly plate mounting hole, is connected with the air cylinder I and is driven by the air cylinder I to stretch up and down; the cylinder I is arranged in the support I, and the support I is fixed on the base; the induction clamping device for the reinforcing rib plate comprises an upper pressing frame for pressing the downward flanging of the reinforcing rib plate, a thimble, an L-shaped upper pressing block II, a mounting frame I, a spring, an annular card and an inductor; the upper pressing frame, the ejector pin and the upper pressing block II are arranged right above the lower flanging of the reinforced rib plate; the upper pressing frame, the ejector pin and the upper pressing block II are respectively provided with a lower pressing block I, a lower pressing block II and a lower pressing block III which are matched and pressed with the upper pressing frame, the ejector pin and the upper pressing block II, and the lower pressing block I, the lower pressing block II and the lower pressing block III are fixedly connected with the base; the upper pressing frame is fixedly connected with the other end of the L-shaped pressing strip I, and the mounting frame I is arranged on one side of the upper pressing frame; the upper pressing block II is arranged on the other side of the upper pressing frame; the mounting frame I is an inverted F-shaped structure consisting of a vertical plate and two transverse plates; the sensor is arranged at the upper end of the vertical plate of the installation frame I, the thimble penetrates through the transverse plates of the two installation frames I to be vertically arranged, the spring and the annular card are arranged on the thimble and positioned between the two transverse plates, the upper end of the spring is fixedly connected with the upper transverse plate, the lower end of the spring is fixedly connected with the annular card, and the annular card is fixedly clamped on the thimble; when the ejector pin is pressed on the lower turnup of the reinforced rib plate, the spring is compressed until the upper end of the ejector pin is leveled with the detection head of the sensor; when the reinforced rib plate is not arranged below the ejector pin, the spring is restored, and the detection head of the sensor is higher than the top end of the ejector pin;
The lower butterfly plate clamping unit comprises an L-shaped pressing strip II and a driving device II for driving the pressing strip II to press and loosen up and down, the driving device II is arranged on the base, one side of the L-shaped pressing strip II is aligned with the lower edge of the lower butterfly plate, and the lower surface of the side is provided with an upper pressing block III for pressing the upper flanging of the reinforcing rib plate and an upper pressing block IV for pressing the lower butterfly plate; the other side of the L-shaped pressing strip II extends to the joint of the upper butterfly plate and the lower butterfly plate, and the lower surface of the side is provided with an upper pressing block V for pressing the lower butterfly plate; the lower pressing block IV, the lower pressing block V and the lower pressing block VI which are matched and pressed with the upper pressing block III, the upper pressing block IV and the upper pressing block V are respectively arranged below the upper pressing block III, the upper pressing block IV and the upper pressing block V; the lower surface of the lower pressing block IV is also provided with a rear clamping block I for clamping the reinforcing rib plate vertical plate; the rear clamping block I is fixed on the base, and a front clamping block I for clamping the reinforcing rib plate vertical plate is arranged in front of the rear clamping block I; the front clamping block I is connected with the upper pressing block IV; a lower pressing block VII which is matched with the front clamping block I and used for pressing the lower butterfly plate is arranged below the front clamping block I; the lower pressing block VII is fixed on the base through a corresponding support II;
the middle plate clamping unit comprises a Z-shaped pressing strip and a driving device III for driving the Z-shaped pressing strip to press and loosen up and down, and the driving device III is arranged on the base; the upper folded edge of the Z-shaped pressing strip is clamped at the edge of the side wall of the middle plate, and an upper pressing block VI for pressing the middle plate is arranged on the lower surface of the lower transverse edge of the Z-shaped pressing strip; the upper pressing block VI is of a double-folded strip-shaped structure extending from the front end to the rear end of the middle plate; a lower pressing block VIII matched and pressed with the upper pressing block VI is arranged below the upper pressing block VI, and the lower pressing block VIII is fixed on the base.
2. The high precision automotive subframe fixture of claim 1, wherein: the spacing between the front clamping block I and the rear clamping block I is the same as the vertical plate thickness of the reinforcing rib plate.
3. A high precision automotive subframe fixture as claimed in any one of claims 1-2, wherein: an auxiliary positioning unit is arranged between the upper butterfly plate clamping unit and the lower butterfly plate clamping unit, and comprises a positioning vertical plate and a bottom plate; the locating vertical plate is fixed on the base through a bottom plate, an L-shaped locating block is arranged on the front surface of the locating vertical plate, and the L-shaped locating block is abutted to the reinforcing rib plate vertical plate.
4. A high precision automotive subframe fixture as claimed in claim 3, wherein: the rear of the positioning vertical plate is provided with a welding slag protection seat, and the surface of the welding slag protection seat is provided with a welding slag protection plate.
5. A high precision automotive subframe fixture as claimed in any one of claims 1-2, wherein: the driving device I, the driving device II and the driving device III are all driven by air cylinders.
6. The high precision automotive subframe fixture of claim 1, wherein: the sensor adopts an infrared sensor.
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| CN202011100583.7A CN113414529B (en) | 2020-10-15 | 2020-10-15 | A high-precision automobile subframe fixture |
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| CN202011100583.7A CN113414529B (en) | 2020-10-15 | 2020-10-15 | A high-precision automobile subframe fixture |
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| CN113414529B true CN113414529B (en) | 2024-11-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000053044A (en) * | 1998-08-18 | 2000-02-22 | Honda Motor Co Ltd | Vehicle body front component assembly equipment |
| JP2019058932A (en) * | 2017-09-27 | 2019-04-18 | トヨタ自動車九州株式会社 | Support and welding system for vehicle frame member |
| CN108581333B (en) * | 2018-06-30 | 2025-01-03 | 浙江拓为汽车部件有限公司 | One-time clamping and welding of efficient front subframe welding fixture |
| CN110744243B (en) * | 2019-11-15 | 2021-11-26 | 四川建安工业有限责任公司 | Auxiliary frame welding assembly fixture |
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| CN214236864U (en) * | 2020-10-15 | 2021-09-21 | 柳州职业技术学院 | High-precision automobile auxiliary frame clamp |
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