Automatic assembly tool for bottom plate assembly of chassis of boom truck

Abstract

The utility model discloses an automatic assembling tool for a bottom plate assembly of a chassis of a boom truck. The automatic assembling tool comprises a base, a pair of centering sliding frames arranged oppositely, two centering clamping assemblies and a positioning mechanism. The base is provided with a top plane; the pair of centering sliding frames which are oppositely arranged are fixed to the two ends, in the length direction, of the top plane of the base, and the centering sliding frames on the two sides can move face to face or back to back. The two centering clamping assemblies are fixed to the opposite side vertical faces of the centering sliding frames on the two sides correspondingly and used for clamping and pressing the left workpiece vertical plate and the right workpiece vertical plate. And the positioning mechanism is fixed on the top plane of the base between the centering sliding frames on the two sides, and is used for transversely positioning and vertically positioning the workpiece bottom plate. The device is matched with full-line automatic production of the boom chassis, stable structural components can be provided for follow-up procedures, and the automation degree is improved.

Description

Technical Field

[0001] The utility model relates to an assembling tool for a boom truck chassis bottom plate assembly, belonging to the technical field of boom truck chassis. Background Art

[0002] At present, the welding production of boom truck chassis assemblies in my country still mainly adopts the method of manual marking and clamp assembly, which has problems such as low production efficiency and poor product quality consistency. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the utility model provides an automatic assembly tooling for the bottom plate components of the boom truck chassis, which cooperates with the fully automated production line of the boom truck chassis, can provide stable structural components for subsequent processes and improve the degree of automation.

[0004] The utility model is implemented according to the following technical solutions:

[0005] The utility model provides an automatic assembly tool for the bottom plate assembly of an arm truck chassis, comprising a base, a pair of centering slides opposite to each other, two centering clamping assemblies and a positioning mechanism; the base has a top plane; a pair of centering slides opposite to each other are fixed at both ends of the top plane of the base along its length direction, and the centering slides on both sides can move toward or away from each other; the two centering clamping assemblies are respectively fixed on the opposite side vertical surfaces of the centering slides on both sides, and are used to clamp and press the left vertical plate and the right vertical plate of the workpiece; the positioning mechanism is fixed on the top plane of the base between the centering slides on both sides, and is used to perform horizontal and vertical positioning of the workpiece bottom plate.

[0006] In some embodiments, the centering carriage comprises:

[0007] a transverse bracket fixed on the top plane of the base;

[0008] The longitudinal bracket is fixed on the transverse bracket, and the centering clamping assembly is fixed on the inner side of the longitudinal bracket. A transverse moving component is installed between the transverse bracket and the longitudinal bracket, so that the longitudinal bracket drives the centering clamping assembly to perform linear reciprocating motion on the transverse bracket.

[0009] In some embodiments, the lateral movement component includes:

[0010] a pair of slideways opposed to each other, fixed on the top plane of the transverse support;

[0011] A slide plate is mounted on the two slideways, and the longitudinal bracket is fixed on the slide plate;

[0012] A lead screw and a threaded block, wherein the lead screw is rotatably supported on the top plane of a transverse bracket located between the two slideways, and the threaded block is sleeved on the lead screw and then fixed on the slide;

[0013] The servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the thread block to move linearly through the rotation of the thread, and then drives the slide plate and the longitudinal bracket to move linearly on the transverse bracket.

[0014] In some embodiments, the centering clamp assembly comprises:

[0015] a clamping base fixed on the centering slide;

[0016] A lead screw and a servo motor, wherein the lead screw is rotatably supported on the clamping base, and the servo motor is connected to one end of the lead screw;

[0017] A pair of clamping blocks facing each other are mounted on the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the two clamping blocks to move toward or away from each other through the rotation of the thread, thereby clamping or loosening the workpiece vertical plate.

[0018] In some embodiments, the positioning mechanism comprises:

[0019] A positioning frame, fixed on the top plane of the base;

[0020] A plurality of support blocks are respectively fixed at the four corners of the top plane of the positioning frame and are used to support the workpiece bottom plate;

[0021] A transverse clamping component, fixed on the top plane of the positioning frame, for transversely clamping the workpiece bottom plate;

[0022] The vertical clamping component is fixed on the top plane of the positioning frame and is used for vertically clamping the workpiece bottom plate.

[0023] In some embodiments, the transverse clamping member comprises:

[0024] A pair of slideways facing each other are fixed on the top plane of the positioning frame;

[0025] a transverse fixing block fixed on the top plane of the positioning frame and resting against the edge of the center circle of the workpiece bottom plate;

[0026] A transverse clamping block and a lead screw, wherein the transverse clamping block is mounted on two slideways and the lead screw is passed through the transverse clamping block;

[0027] The servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the horizontal clamping block to move linearly through the rotation of the thread, thereby tightening the workpiece base plate and positioning it horizontally.

[0028] In some embodiments, the vertical clamping member comprises:

[0029] A pair of slideways facing each other are fixed on the top plane of the positioning frame;

[0030] A pair of vertical clamping blocks facing each other are mounted on the two slideways;

[0031] A lead screw and a servo motor, wherein the lead screw is passed through two vertical clamping blocks, and the servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate, and the lead screw drives the two vertical clamping blocks to move toward each other through thread rotation, thereby clamping the workpiece base plate and vertically positioning it.

[0032] In some embodiments, the vertical clamping block is composed of a bottom slide and two cylinders fixed on the bottom slide; the bottom slide is slidably mounted on two slideways, and the two cylinders are used to abut against the outer edge of the workpiece bottom plate.

[0033] In some embodiments, the base is composed of a top plate and a support frame located below the top plate, and the support frame is composed of a plurality of vertical beams and a plurality of transverse beams welded together.

[0034] Beneficial effects of the utility model:

[0035] 1. The utility model realizes the automatic clamping of the chassis bottom plate assembly of the boom truck, thereby improving production efficiency and product stability.

[0036] 2. This utility model adopts hydraulic centering clamping and servo motor combined with lead screw feeding to improve the precision of parts assembly and the consistency of product size. It is also suitable for the assembly of arm frame chassis parts of different lengths, widths and heights within a range.

[0037] 3. The utility model cooperates with the loading and unloading and automated welding of the truss to achieve a stable and efficient production rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be derived from these drawings without inventive effort.

[0039] In the attached figure:

[0040] Figure 1 This is a schematic diagram of the automatic assembly tooling for the chassis bottom plate assembly of the boom truck of the present invention;

[0041] Figure 2 This is a schematic diagram of the centering clamping assembly of the present invention;

[0042] Figure 3 This is a schematic diagram of the centering slide of the present utility model;

[0043] Figure 4 This is a schematic diagram of the positioning mechanism of the utility model;

[0044] Figure 5 This is a schematic diagram of the base of the utility model;

[0045] Figure 6 A schematic diagram of a workpiece of the present utility model;

[0046] Figure 7 This is a schematic diagram of the working state of the positioning mechanism of the utility model;

[0047] Figure 8 This is a schematic diagram of the working state of the automatic assembly tooling of the chassis bottom plate assembly of the boom truck of the utility model (a is the main view, b is the side view, c is the top view, and d is the three-dimensional view).

[0048] Figure symbols: 1-centering clamping assembly, 2-centering slide, 3-positioning mechanism, 4-base, 5-workpiece;

[0049] 101-clamping block, 102-clamping base, 103-servo motor;

[0050] 201-longitudinal bracket, 202-transverse bracket, 203-slideway, 204-slide plate, 205-lead screw, 206-thread block;

[0051] 301-support block, 302-lateral clamping block, 303-vertical clamping block, 304-lateral fixing block, 305-slideway, 306-slideway, 307-positioning frame;

[0052] 401-top plate, 402-support frame;

[0053] 501-left vertical plate of workpiece, 502-right vertical plate of workpiece, 503-bottom plate of workpiece.

[0054] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0057] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0058] like Figure 1 、 Figure 6 As shown, the utility model provides an automatic assembly tool for the chassis bottom plate assembly of a boom truck, including a base 4, a pair of centering slides 2 opposite to each other, two centering clamping assemblies 1 and a positioning mechanism 3; the base 4 has a top plane; a pair of centering slides 2 opposite to each other are fixed at both ends of the top plane of the base 4, and the centering slides 2 on both sides can move toward or away from each other; the two centering clamping assemblies 1 are respectively fixed on the opposite side vertical surfaces of the centering slides 2 on both sides, and are used to clamp and press the left vertical plate 501 and the right vertical plate 502 of the workpiece; the positioning mechanism 3 is fixed on the top plane of the base 4 between the centering slides 2 on both sides, and is used to perform horizontal and vertical positioning of the workpiece bottom plate 503.

[0059] It should be noted that if Figure 6 As shown, the workpiece 5 includes a left workpiece vertical plate 501 , a right workpiece vertical plate 502 and a workpiece bottom plate 503 .

[0060] The above-mentioned centering slide is further described below.

[0061] like Figure 3 As shown, the centering slide 2 includes a transverse bracket 202 and a longitudinal bracket 201; the transverse bracket 202 is fixed on the top plane of the base 4; the longitudinal bracket 201 is fixed on the transverse bracket 202, and the centering clamping assembly 1 is fixed on the inner side surface of the longitudinal bracket 201. A transverse moving part is installed between the transverse bracket 202 and the longitudinal bracket 201, so that the longitudinal bracket 201 drives the centering clamping assembly 1 to perform linear reciprocating motion on the transverse bracket 202.

[0062] For further solutions, please refer to Figure 3As shown, the transverse moving component includes a pair of opposite slides 203, a slide plate 204, a lead screw 205, a threaded block 206 and a servo motor; the pair of opposite slides 203 are fixed on the top plane of the transverse bracket 202; the slide plate 204 is installed on the two slides 203, and the longitudinal bracket 201 is fixed on the slide plate 204; the lead screw 205 is rotatably supported on the top plane of the transverse bracket 202 located between the two slides 203, and the threaded block 206 is fixed on the slide plate 204 after being sleeved on the lead screw 205; the servo motor is connected to one end of the lead screw 205, and the servo motor drives the lead screw 205 to rotate, and the lead screw 205 drives the threaded block 206 to move linearly through the rotation of the thread, thereby driving the slide plate 204 and the longitudinal bracket 201 to move linearly on the transverse bracket 202.

[0063] The above-mentioned centering clamping assembly is further described below.

[0064] like Figure 2 As shown, the centering clamping assembly 1 includes a clamping base 102, a lead screw, a servo motor 103 and a pair of clamping blocks 101 opposite to each other; the clamping base 102 is fixed on the centering slide 2; the lead screw is rotatably supported on the clamping base 102, and the servo motor 103 is connected to one end of the lead screw; a pair of clamping blocks 101 opposite to each other are mounted on the lead screw, and the servo motor 103 drives the lead screw to rotate, and the lead screw drives the two clamping blocks 101 to move toward or away from each other through thread rotation, thereby clamping or loosening the workpiece vertical plate.

[0065] The above positioning mechanism is further described below.

[0066] like Figure 4 As shown, the positioning mechanism 3 includes a positioning frame 307, multiple support blocks 301, a horizontal clamping component and a vertical clamping component; the positioning frame 307 is fixed on the top plane of the base 4; multiple support blocks 301 are respectively fixed at the four corners of the top plane of the positioning frame 307, for supporting the workpiece base plate 503; the horizontal clamping component is fixed on the top plane of the positioning frame 307, for horizontally clamping the workpiece base plate 503; the vertical clamping component is fixed on the top plane of the positioning frame 307, for vertically clamping the workpiece base plate 503.

[0067] For further solutions, please refer to Figure 4As shown, the transverse clamping component includes a pair of opposite slides 305, a transverse fixing block 304, a transverse clamping block 302, a screw and a servo motor; a pair of opposite slides 305 are fixed on the top plane of the positioning frame 307; the transverse fixing block 304 is fixed on the top plane of the positioning frame 307, and it rests on the edge of the center circle of the workpiece base plate 503; the transverse clamping block 302 is installed on the two slides 305, and the screw is passed through the transverse clamping block 302; the servo motor is connected to one end of the screw, and the servo motor drives the screw to rotate, and the screw drives the transverse clamping block 302 to move linearly through the rotation of the thread, thereby tightening the workpiece base plate 503 to position it laterally.

[0068] For further solutions, please refer to Figure 4 As shown, the vertical clamping components include a pair of opposite slideways 306, a pair of opposite vertical clamping blocks 303, a lead screw, and a servo motor; a pair of opposite slideways 306 are fixed on the top plane of the positioning frame 307; a pair of opposite vertical clamping blocks 303 are installed on the two slideways 306; the lead screw is passed through the two vertical clamping blocks 303, and the servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate, and the lead screw drives the two vertical clamping blocks 303 to move toward each other through the rotation of the thread, thereby clamping the workpiece base plate 503 and vertically positioning it.

[0069] For further solutions, please refer to Figure 4 As shown, the vertical clamping block 303 consists of a bottom slide and two cylinders fixed on the bottom slide; the bottom slide is slidably mounted on two slideways 306, and the two cylinders are used to abut against the outer edge of the workpiece bottom plate 503.

[0070] The above base is further described below.

[0071] like Figure 5 As shown, the base 4 is composed of a top plate 401 and a support frame 402 located below the top plate 401. The support frame 402 is composed of a plurality of vertical beams and a plurality of transverse beams welded together.

[0072] The following is the working process of the automatic assembly tooling of the chassis bottom plate components of the above-mentioned boom truck:

[0073] like Figure 7 、 Figure 8As shown, the workpiece bottom plate 503 is placed on the support block 301 by the truss gripper. At this time, the horizontal clamping block 302 is tightened to make the workpiece bottom plate 503 fit onto the horizontal fixing block 304, and the workpiece bottom plate 503 is positioned horizontally. The vertical clamping blocks 303 on both sides perform centering movement to position the workpiece bottom plate 503 vertically. The workpiece bottom plate 503 is automatically positioned; the truss gripper grabs the left plate 501 of the workpiece and places it at the specified position above the workpiece bottom plate 503 and holds it there. It is stationary. After the centering slide 2 on the left side moves into place with the centering clamping assembly 1, the clamping blocks 101 on both sides move in the center to clamp and press the left vertical plate 501 of the workpiece, and the truss is withdrawn. The truss gripper grabs the right vertical plate 502 of the workpiece and places it in the designated position above the workpiece bottom plate 503 and remains stationary. After the centering slide 2 on the right side moves into place with the centering clamping assembly 1, the clamping blocks 101 on both sides move in the center to clamp and press the right vertical plate 502 of the workpiece, and the truss is withdrawn. The entire team is completed.

[0074] In summary, this utility model achieves automated clamping of boom chassis baseplate assemblies, improving production efficiency and product stability. This utility model utilizes hydraulic centering clamping and a servo motor coupled with a lead screw feed method to enhance the precision of component assembly and the consistency of product dimensions. It is suitable for assembling boom chassis components of varying lengths, widths, and heights. This utility model, combined with truss loading and unloading and automated welding, achieves a stable and efficient production cycle.

[0075] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0076] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.

[0077] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. The automatic assembly tooling of the chassis bottom plate assembly of the boom truck is characterized by: include: A base having a top plane; A pair of centering slides facing each other are fixed at both ends of the top plane of the base, and the centering slides on both sides can move toward or away from each other; Two centering clamping assemblies are respectively fixed on the opposite side surfaces of the centering slides on both sides, and are used to clamp and press the left vertical plate and the right vertical plate of the workpiece; The positioning mechanism is fixed on the top plane of the base between the centering slides on both sides and is used for horizontally and vertically positioning the workpiece bottom plate.

2. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 1 is characterized in that: The centering carriage comprises: a transverse bracket fixed on the top plane of the base; The longitudinal bracket is fixed on the transverse bracket, and the centering clamping assembly is fixed on the inner side of the longitudinal bracket. A transverse moving component is installed between the transverse bracket and the longitudinal bracket, so that the longitudinal bracket drives the centering clamping assembly to perform linear reciprocating motion on the transverse bracket.

3. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 2 is characterized in that: The lateral moving component comprises: a pair of slideways opposed to each other, fixed on the top plane of the transverse support; A slide plate is mounted on the two slideways, and the longitudinal bracket is fixed on the slide plate; A lead screw and a threaded block, wherein the lead screw is rotatably supported on the top plane of a transverse bracket located between the two slideways, and the threaded block is sleeved on the lead screw and then fixed on the slide; The servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the thread block to move linearly through the rotation of the thread, and then drives the slide plate and the longitudinal bracket to move linearly on the transverse bracket.

4. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 1 is characterized in that: The centering clamping assembly comprises: a clamping base fixed on the centering slide; A lead screw and a servo motor, wherein the lead screw is rotatably supported on the clamping base, and the servo motor is connected to one end of the lead screw; A pair of clamping blocks facing each other are mounted on the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the two clamping blocks to move toward or away from each other through the rotation of the thread, thereby clamping or loosening the workpiece vertical plate.

5. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 1 is characterized in that: The positioning mechanism comprises: A positioning frame, fixed on the top plane of the base; A plurality of support blocks are respectively fixed at the four corners of the top plane of the positioning frame and are used to support the workpiece bottom plate; A transverse clamping component, fixed on the top plane of the positioning frame, for transversely clamping the workpiece bottom plate; The vertical clamping component is fixed on the top plane of the positioning frame and is used for vertically clamping the workpiece bottom plate.

6. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 5 is characterized in that: The transverse clamping member comprises: A pair of slideways facing each other are fixed on the top plane of the positioning frame; a transverse fixing block fixed on the top plane of the positioning frame and resting against the edge of the center circle of the workpiece bottom plate; A transverse clamping block and a lead screw, wherein the transverse clamping block is mounted on two slideways and the lead screw is passed through the transverse clamping block; The servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate. The lead screw drives the horizontal clamping block to move linearly through the rotation of the thread, thereby tightening the workpiece base plate and positioning it horizontally.

7. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 5 is characterized in that: The vertical clamping component comprises: A pair of slideways facing each other are fixed on the top plane of the positioning frame; A pair of vertical clamping blocks facing each other are mounted on the two slideways; A lead screw and a servo motor, wherein the lead screw is passed through two vertical clamping blocks, and the servo motor is connected to one end of the lead screw. The servo motor drives the lead screw to rotate, and the lead screw drives the two vertical clamping blocks to move toward each other through thread rotation, thereby clamping the workpiece base plate and vertically positioning it.

8. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 7 is characterized in that: The vertical clamping block consists of a bottom slide and two cylinders fixed on the bottom slide; the bottom slide is slidably installed on two slideways, and the two cylinders are used to abut against the outer edge of the workpiece bottom plate.

9. The automatic assembly tool for the chassis bottom plate assembly of the boom truck according to claim 1 is characterized in that: The base is composed of a top plate and a support frame located below the top plate, and the support frame is composed of a plurality of vertical beams and a plurality of transverse beams welded together.

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