CN115780718A

CN115780718A - Truck beam assembly riveting assembly fixture

Info

Publication number: CN115780718A
Application number: CN202211533452.7A
Authority: CN
Inventors: 苏相三; 陈英昇; 李岱圭; 区锦文; 罗武城
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-14

Abstract

The invention discloses a riveting assembly fixture for a truck beam assembly, which comprises a platform, a positioning mechanism and a plurality of fixing assemblies, wherein the positioning mechanism comprises two positioning plates arranged at intervals along a first direction, a placing space is formed between the two positioning plates, the positioning mechanism also comprises a positioning pin arranged in the placing space, the fixing assemblies comprise a pressing block and a first driving mechanism, and the pressing block is arranged in the placing space. According to the technical scheme provided by the invention, when the cross beam and the cross beam connecting plate are assembled, the cross beam connecting plate is placed in the placing space, the cross beam connecting plate is positioned and pre-fixed through the positioning pin, the cross beam connecting plate is fixed through the clamping action of the compression block and the positioning plate, the positioning precision of the fixed cross beam connecting plate is ensured, and then the cross beam is screwed or riveted on the cross beam connecting plate through manual or automatic equipment to form the cross beam assembly, so that the assembling quality of the cross beam assembly is improved.

Description

Truck beam assembly riveting assembly fixture

Technical Field

The invention relates to the field of assembly fixtures, in particular to a riveting assembly fixture for a truck beam assembly.

Background

The beam assembly is formed by riveting or screwing a beam and a beam connecting plate, is used for ensuring the torsional rigidity of a frame and bearing longitudinal and transverse loads, can support main parts on a truck, is an important part of a chassis, and is very important in assembly quality.

The assembly quality of the existing assembling clamp for the beam assembly is unstable, the percent of pass is low, the assembling clamp is not suitable for automatic riveting occasions, only can be used for manual riveting, and during manual riveting, the labor intensity of workers is high, and the assembly efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a riveting assembly fixture for a truck beam assembly, and aims to solve the problem that the existing riveting assembly fixture for the truck beam assembly is unstable in assembly quality.

In order to achieve the above object, the present invention provides a riveting assembly fixture for a truck beam assembly, which is used for fixing a beam connecting plate to assemble a beam and the beam connecting plate by rivets, wherein the riveting assembly fixture for the truck beam assembly comprises:

the platform is a closed frame structure;

the positioning mechanism is arranged on the upper side of the platform and comprises two positioning plates arranged at intervals along a first direction, a placing space is formed between the two positioning plates, the positioning mechanism also comprises a positioning pin arranged in the placing space, and the positioning pin is used for being in positioning fit connection with a positioning hole of a cross beam connecting plate placed in the placing space;

the fixing assemblies comprise pressing blocks and a first driving mechanism, the pressing blocks are arranged in the placing space and can move towards the positioning plate to be close to or far away from the positioning plate, the first driving mechanism is in driving connection with the pressing blocks to drive the pressing blocks to move close to the positioning plate, and the pressing blocks and the positioning plate are clamped together and placed on the beam connecting plate in the placing space.

Optionally, the positioning pin comprises a first pin group and a second pin group which are arranged at intervals along the second direction, the first pin group comprises two diamond-shaped pins which are arranged at intervals along the up-down direction, and the second pin group comprises two cylindrical pins which are arranged along the up-down direction.

Optionally, the positioning pins and the plurality of fixing assemblies are respectively disposed on two positioning plates, and the center points of the plurality of pressing blocks disposed on one side of a single positioning plate correspond to the positioning pins disposed on one side of the single positioning plate one to one.

Optionally, the pressing block is provided with a pressing portion extending upwards, and the pressing block is rotatably arranged in the vertical direction, so that the pressing portion has a first state in abutment with the beam connecting plate to clamp the beam connecting plate together with the positioning plate, and a second state in dislocation with the beam connecting plate to release the limitation on the beam connecting plate.

Optionally, the first driving mechanism includes a first cylinder, a cylinder piston rod and a connecting rod, the first cylinder is located on one side of the positioning plate away from the placing space, the connecting rod penetrates through the positioning plate along a first direction and is connected with the pressing block, and the connecting rod is connected with the first cylinder through the cylinder piston rod.

Optionally, a guide sleeve is arranged between the connecting rod and the positioning plate, the connecting rod penetrates through the guide sleeve, and a guide pin is arranged on a penetrating surface of the guide sleeve;

the surface of the connecting rod is provided with a spiral guide groove which corresponds to the guide pin and extends along a first direction, and the connecting rod is rotatably connected with the cylinder piston rod so that the connecting rod rotates along the first direction when stretching and retracting to drive the pressing block to rotate, so that the pressing part is switched between a first state and a second state.

Optionally, one side of each of the two positioning plates, which is away from the placement space, is provided with a width adjusting mechanism, and the width adjusting mechanisms are connected with the positioning plates to drive the positioning plates to move along a first direction, so as to adjust the distance between the two positioning plates.

Optionally, the width adjusting mechanism includes:

the second cylinder is arranged on one side, away from the placing space, of the platform and used for driving the positioning plate to move along the first direction;

one end of the connecting piece is in transmission connection with the second cylinder, and the other end of the connecting piece is connected with the positioning plate;

the sliding rail is arranged between the platform and the positioning plate, a sliding seat is arranged on the sliding rail, and the sliding rail is connected with the positioning plate through the sliding seat;

the stop block is arranged on the platform and is positioned on one side of the positioning plate away from the connecting piece;

the cushion block group comprises a plurality of cushion blocks with different thicknesses, and the cushion blocks are arranged between the stop block and the positioning plates and used for limiting the positioning plates when the second air cylinder drives the positioning plates to move along a first direction so as to adjust the distance between the two positioning plates and adapt to beam assemblies with different widths; and the number of the first and second groups,

and the butterfly screw is arranged on the upper side of the stop block and used for fixing the cushion block so as to replace the cushion block.

Optionally, the platform is used for being connected to a positioner and driving the riveting assembly fixture of the truck beam assembly to turn over up and down;

and the upper sides of the two positioning plates are respectively provided with a nail blocking mechanism, and the nail blocking mechanisms are used for blocking rivets of the beam connecting plates when the riveting assembling clamp of the truck beam assembly is turned over.

Optionally, the staple blocking mechanism comprises:

the rivet blocking plate is arranged on the upper side of the positioning plate, extends towards one side of the positioning plate facing the placing space and is used for blocking the rivet of the beam connecting plate so as to prevent the rivet from falling off;

and the rotating cylinder is in transmission connection with the nail baffle to drive the nail baffle to rotate along a first direction, so that the nail baffle extends out of one side of the positioning plate, which is far away from the placing space, and the cross beam connecting plate can pass in and out.

According to the technical scheme, when the cross beam and the cross beam connecting plate are assembled, the cross beam connecting plate is placed in the placing space, the cross beam connecting plate is positioned and pre-fixed through the positioning pins, the cross beam connecting plate is fixed through the clamping action of the compression block and the positioning plate, the positioning accuracy of the fixed cross beam connecting plate is guaranteed, and then the cross beam is screwed or riveted on the cross beam connecting plate through manual or automatic equipment to form the cross beam assembly, so that the assembling quality of the cross beam assembly is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of one embodiment of a riveting assembly jig for a truck beam assembly according to the present invention;

FIG. 2 is a schematic perspective view of the truck beam assembly riveting assembly jig of FIG. 1;

FIG. 3 is a cross-sectional view of a stationary component of the truck beam assembly riveting assembly fixture of FIG. 1;

FIG. 4 is a front view of the truck beam assembly staking jig of FIG. 1;

FIG. 5 is a front view of the truck beam assembly staking jig of FIG. 1;

FIG. 6 is a cross-sectional view of a width adjustment mechanism of the truck beam assembly riveting assembly jig of FIG. 1;

FIG. 7 is an elevation view of a beam assembly according to one embodiment.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

At present, the assembly quality of a common riveting assembly clamp for a truck beam assembly is unstable, the percent of pass is low, the clamp is not suitable for automatic riveting occasions and only can be used for manual riveting, and the labor intensity of workers is high and the assembly efficiency is low during manual riveting.

In order to solve the above problems, the present invention provides a truck beam assembly riveting assembling jig 100, and fig. 1 to 7 are specific embodiments of the truck beam assembly riveting assembling jig provided by the present invention.

Please refer to fig. 1, the riveting assembly fixture 100 for a truck beam assembly comprises a platform 1, a positioning mechanism 2 and a plurality of fixing components 3, wherein the positioning mechanism 2 is disposed on the upper side of the platform 1 and comprises two positioning plates 21 spaced along a first direction, a placing space 22 is formed between the two positioning plates 21, the positioning mechanism 2 further comprises a positioning pin 23 disposed in the placing space 22, the positioning pin 23 is used for being in positioning fit connection with a positioning hole of a beam connecting plate disposed in the placing space 22, the fixing components 3 comprise a pressing block 31 and a first driving mechanism 32, the pressing block 31 is disposed in the placing space 22 and can move close to or away from the positioning plate 21, and the first driving mechanism 32 is in driving connection with the pressing block 31 to drive the pressing block 31 to move close to the positioning plate 21 and clamp the beam connecting plate disposed in the placing space 22 together with the positioning plate 21.

Referring to fig. 3, a protrusion protruding toward the positioning plate 21 is disposed on one side of the pressing block 31, and the protrusion is arc-shaped, so that when the pressing block 31 clamps the beam connection plate on the positioning plate 21, the pressing block 31 and the beam connection plate are in line contact, and the line contact makes the contact area between the pressing block 31 and the beam connection plate small, so as to ensure that the contact stress at the contact position is large, so that the beam connection plate is more stably fixed, and prevent the beam connection plate from deviating and affecting the assembly quality when the beam is assembled on the beam connection plate, a plurality of mounting positions for mounting the positioning pin 23 are disposed in the placement space 22, and the positioning pin 23 and the mounting positions are detachably disposed, and the plurality of mounting positions correspond to the positioning holes of the beam connection plates of different specifications, and the positioning pin 23 also has a plurality of specifications to correspond to the sizes of the positioning holes of the beam connection plates of different specifications, so that the position and the type of the positioning pin 23 can be adjusted to be adapted when the beam connection plates of different specifications need to be positioned.

According to the technical scheme provided by the invention, when the cross beam and the cross beam connecting plate are assembled, the cross beam connecting plate is placed in the placing space 22, the cross beam connecting plate is positioned and pre-fixed through the positioning pin 23, the cross beam connecting plate is fixed through the clamping action of the compression block 31 and the positioning plate 21, the positioning precision of the fixed cross beam connecting plate is ensured, and then the cross beam is screwed or riveted on the cross beam connecting plate through manual or automatic equipment to form the cross beam assembly, so that the assembling quality of the cross beam assembly is improved.

The positioning pins 23 comprise a first pin group and a second pin group which are arranged at intervals in the second direction, the first pin group comprises two diamond pins which are arranged at intervals in the vertical direction, the second pin group comprises two cylindrical pins which are arranged in the vertical direction, in one embodiment, in order to assemble the beam and beam connecting plate shown in fig. 7, one side, opposite to the two positioning plates 21, is provided with the positioning pins 23 and four pressing blocks 31, the four pressing blocks 31 are respectively arranged at four corners of a rectangle, the positioning pins 23 comprise two diamond pins and two cylindrical pins, the diamond pins and the cylindrical pins are used for penetrating through circular positioning holes of the beam connecting plate, the beam connecting plate is positioned through the diamond pins and the cylindrical pins, the beam connecting plate is clamped by the pressing blocks 31 and the positioning plates 21, the positioning accuracy of the beam connecting plates on the left side and the right side is ensured, and then the beam is assembled on the beam connecting plates on the left side and the right side.

Further, referring to fig. 1 and fig. 2, the positioning pins 23 and the fixing assemblies 3 are respectively disposed on two positioning plates 21, and when the pressing blocks 31 and the positioning plates 21 clamp the beam connecting plate, the pressing blocks 31 apply pressure to the positioning plates 21 to position and press the beam connecting plate, so that the beam connecting plate cannot be deviated.

Referring to fig. 4 and 5, the pressing block 31 has a pressing portion 311 extending upward, the pressing block 31 is rotatably disposed in the vertical direction, so that the pressing portion 311 has a first state abutting against the beam connection plate, the positioning plate 21 clamps the beam connection plate together, and a second state dislocated from the beam connection plate, so as to release the limitation on the beam connection plate, the pressing block 31 can rotate until the pressing portion 311 is in the first state, so as to clamp the beam connection plate together with the positioning plate 21, and the pressing block 31 can also rotate until the pressing portion 311 is in the second state, so as to release the clamping on the beam connection plate, and facilitate the entry and exit of the beam connection plate before and after assembly.

Further, referring to fig. 3, the first driving mechanism 32 includes a first cylinder 321, a cylinder piston rod 322, and a connecting rod 323, the first cylinder 321 is disposed on a side of the positioning plate 21 away from the placing space 22, the connecting rod 323 penetrates through the positioning plate 21 along a first direction and is connected to the pressing block 31, the connecting rod 323 is connected to the first cylinder 321 through the cylinder piston rod 322, and the connecting rod 323 is driven by the first cylinder 321 to drive the pressing block 31 to approach or separate from the positioning plate 21 in the first direction, so as to clamp or release the beam connecting plate.

A guide sleeve 24 is arranged between the connecting rod 323 and the positioning plate 21, the connecting rod 323 penetrates through the guide sleeve 24, a guide pin 241 is arranged on a penetrating surface of the guide sleeve 24, a spiral guide groove 3231 which corresponds to the guide pin 241 and extends along a first direction is arranged on a surface of the connecting rod 323, the connecting rod 323 is rotatably connected with the cylinder piston rod 322, so that the connecting rod 323 rotates when extending and contracting along the first direction to drive the pressing block 31 to rotate, the pressing part 311 is switched between a first state and a second state, and when the first cylinder 321 drives the connecting rod 323 to extend and contract along the first direction, the connecting rod 323 can rotate relative to the cylinder piston rod 322 in the extending and contracting process through the guide effect of the guide pin 241 on the spiral guide groove 3231, and the pressing block 31 is switched between the first state and the second state.

As a preferred embodiment, when the pressing portion 311 is in the first state, the distal end faces upward, so that the pressing portion 311 and the positioning plate 21 can clamp the beam connecting plate together, when the pressing portion 311 is switched from the first state to the second state, the pressing portion 311 rotates 90 degrees so that the distal end faces one direction of the second direction, both directions of the second direction are both available, and at this time, the pressing portion 311 does not interfere with the beam connecting plate.

Two the locating plate 21 is kept away from one side of placing space 22 all is equipped with transfers wide mechanism 4, transfer wide mechanism 4 with locating plate 21 is connected, in order to drive locating plate 21 removes along the first direction, in order to adjust two the interval of locating plate 21, through transfer wide mechanism 4 can be to two the interval of locating plate 21 is adjusted to can be applicable to the beam assembly of different width, the commonality is strong.

Further, referring to fig. 6, the width adjusting mechanism 4 includes a second cylinder 41, a connecting member 42, a sliding rail 43, a stop block 44, a pad set and a butterfly screw 46, the second cylinder 41 is disposed on one side of the platform 1 away from the placing space 22 to drive the positioning plate 21 to move along a first direction, one end of the connecting member 42 is in transmission connection with the second cylinder 41, the other end of the connecting member is connected with the positioning plate 21, the sliding rail 43 is disposed between the platform 1 and the positioning plate 21, the sliding rail 43 is provided with a sliding seat, the sliding rail 43 is connected with the positioning plate 21 through the sliding seat, the stop block 44 is disposed on the platform 1 and located on one side of the positioning plate 21 away from the connecting member 42, the pad set includes a plurality of cushion blocks 45 with different thicknesses, the cushion block 45 is disposed between the stop block 44 and the positioning plate 21 to limit the positioning plate 21 when the second cylinder 41 drives the positioning plate 21 to move along the first direction, so as to adjust a distance between the two positioning plates 21, and the butterfly screw 46 is disposed on an upper side of the stop block 44 to fix the positioning plate 45.

The positioning plate 21 is disposed on the slide rail 43 through the slide seat, and driven by the second cylinder 41, the connecting rod 323 is used for transmission, so that the positioning plate 21 can move on the slide rail 43 along the first direction, the other side of the positioning plate 21 is provided with a stop block 44, the cushion block 45 can be inserted between the stop block 44 and the positioning plate 21, the cushion block 45 is fixed through the butterfly screw 46, the positioning plate 21 can be limited by the cushion block 45 when moving to another positioning plate 21 along the first direction, so as to change the position of the positioning plate 21, and the distance between the two positioning plates 21 can be changed by inserting the cushion blocks 45 with different thicknesses, so that the beam assembly can be applied to beam assemblies with different widths.

The platform 1 is used for being connected to a position changing machine and driving the riveting assembly fixture of the truck beam assembly to vertically turn over, when the riveting assembly fixture of the truck beam assembly is turned over, manual turning is not needed, the labor intensity of workers is reduced, the two positioning plates 21 are provided with two rivet blocking mechanisms 5 on the upper sides, the rivet blocking mechanisms 5 are used for blocking rivets when the riveting assembly fixture of the truck beam assembly is turned over, the rivets are assembled in the two rivet blocking positions on the upper sides as shown in the assembly of the beam and the beam connecting plate in the figure 7 and need to be riveted through riveting, four riveting positions are arranged, the riveting positions comprise the two riveting positions on the upper sides and the two riveting positions on the lower sides, the rivets are assembled before riveting, the rivets are firstly assembled in the two riveting positions on the upper sides, the rivets are blocked by the rivet blocking mechanisms 5, then the riveting assembly fixture of the truck beam assembly is driven to turn over by the position changing machine, the rivets are riveted to the two riveting positions on the lower sides, the two riveting positions on the lower sides are riveted by the rivets, and the riveting assembly fixture is driven by the position, then the position on the truck beam assembly is driven by the changing machine to turn over, the rivets, blocking of the rivet blocking mechanisms 5 is cancelled, and the rivets are riveted.

Further, referring to fig. 2, 4 and 5, the nail blocking mechanism 5 includes a nail blocking plate 51 and a rotary cylinder 52, the nail blocking plate 51 is disposed on the upper side of the positioning plate 21 and extends out towards one side of the positioning plate 21 facing the placing space 22 to block the rivet of the beam connecting plate, the rotary cylinder 52 is in transmission connection with the nail blocking plate 51 to drive the nail blocking plate 51 to rotate along a first direction, so that the nail blocking plate 51 extends out towards one side of the positioning plate 21 away from the placing space 22 to allow the beam connecting plate to pass in and out, the rotary cylinder 52 can drive the nail blocking plate 51 to rotate on the upper side of the positioning plate 21, so that the nail blocking plate 51 extends out between the two positioning plates 21 and is located above the placing space 22, when the beam connecting plate and the beam are assembled, the nail blocking plate 51 corresponds to two riveting positions on the upper side, so that the rivet can be blocked after the truck beam assembly fixture is turned over, and can also be rotated so that the nail blocking plate 51 can be rotated towards the two positioning plates 21, and the assembly direction of the beam can be released.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. The utility model provides a truck beam assembly riveting assembly jig for the fixed cross beam connecting plate, with through rivet assembly crossbeam with the crossbeam connecting plate, its characterized in that includes:

the platform is a closed frame structure;

2. The truck beam assembly riveting assembly jig of claim 1, wherein the locating pin comprises a first pin set and a second pin set spaced apart along a second direction, the first pin set comprising two diamond-shaped pins spaced apart along an up-down direction, and the second pin set comprising two cylindrical pins spaced along an up-down direction.

3. The truck beam assembly riveting assembly jig of claim 1, wherein the locating pins and the plurality of fixing assemblies are respectively arranged on two locating plates, and the plurality of pressing blocks arranged on one side of a single locating plate are in one-to-one correspondence with the locating pins arranged on one side of a single locating plate.

4. The truck beam assembly riveting assembly fixture as defined in claim 1, wherein the pressing block is provided with a pressing portion extending upward, and the pressing block is rotatably provided in the vertical direction so that the pressing portion has a first state of abutting against the beam connecting plate to clamp the beam connecting plate together with the positioning plate, and a second state of being misaligned with the beam connecting plate to release the restriction of the beam connecting plate so as to detach the beam connecting plate.

5. The riveting assembly clamp for the truck beam assembly according to claim 4, wherein the first driving mechanism comprises a first air cylinder, an air cylinder piston rod and a connecting rod, the first air cylinder is arranged on one side of the positioning plate far away from the placing space, the connecting rod penetrates through the positioning plate along a first direction and is connected with the pressing block, and the connecting rod is connected with the first air cylinder through the air cylinder piston rod.

6. The riveting assembly fixture of the truck beam assembly, as recited in claim 5, wherein a guide sleeve is provided between the connecting rod and the positioning plate, the connecting rod is arranged through the guide sleeve, and a guide pin is provided on a penetrating surface of the guide sleeve;

the surface of the connecting rod is provided with a spiral guide groove which corresponds to the guide pin and extends along the first direction, and the connecting rod is rotatably connected with the cylinder piston rod so that the connecting rod rotates when stretching along the first direction to drive the pressing block to rotate, so that the pressing part is switched between the first state and the second state.

7. The riveting assembly clamp for the truck beam assembly according to claim 1, wherein a width adjusting mechanism is arranged on one side of each of the two positioning plates, which is far away from the placing space, and the width adjusting mechanism is connected with the positioning plates to drive the positioning plates to move along a first direction so as to adjust the distance between the two positioning plates.

8. The truck beam assembly riveting assembly jig of claim 7, wherein the width adjustment mechanism comprises:

9. The truck beam assembly riveting assembly jig of claim 1, wherein the platform is configured to be connected to a positioner for driving the truck beam assembly riveting assembly jig to turn upside down;

and the upper sides of the two positioning plates are respectively provided with a nail blocking mechanism, and the nail blocking mechanisms are used for blocking the rivets when the riveting assembly fixture of the truck beam assembly is turned over.

10. The truck beam assembly riveting assembly jig of claim 9, wherein the stop pin mechanism comprises:

the rivet blocking plate is arranged on the upper side of the positioning plate, extends towards one side of the positioning plate facing the placing space and is used for blocking the rivet so as to prevent the rivet from falling;