Positioning tool for assembling anti-collision beam

Abstract

The utility model discloses a positioning tool for anti-collision beam assembly, which comprises a working table, an energy absorption box and an anti-collision beam body, the working table is provided with a supporting seat for limiting and supporting the middle part of the anti-collision beam body and positioning seats for positioning two ends of the anti-collision beam body, and a supporting frame is arranged on the working table; the supporting frame is provided with a clamping piece used for clamping the energy absorption box and a driving assembly used for driving the clamping piece to move relatively, the supporting frame comprises a stand column and a guide rod, a guide groove is formed in the guide rod, the clamping piece comprises a clamping sleeve, a connecting rod and a sliding block, and the sliding block is installed in the guide groove of the guide rod and is in threaded connection with the two-way lead screw. One end of the bidirectional lead screw is fixed to the guide rod through a fixing plate and is driven by the stepping motor to rotate, a positioning groove is formed in the upper surface of the positioning seat, a limiting groove is formed in the upper surface of the supporting seat, and the limiting groove and the positioning groove guarantee accurate placement of the anti-collision beam body and improve assembly accuracy and welding stability. And reliable fixation and production efficiency of the anti-collision beam and accessories thereof are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the anti -collision beam production and processing technical field, concretely relates to a kind of positioning tool for anti -collision beam assembly. BACKGROUND

[0002] Anti-collision beam is an important component in the structure of automobile body, mainly used for absorbing collision energy, reducing the impact on passenger compartment when accident occurs, and improving the safety performance of vehicle. Usually, anti-collision beam is composed of anti-collision beam body and energy-absorbing box and other components, wherein the energy-absorbing box is fixed on the anti-collision beam body by welding or other methods to ensure that the impact force can be effectively transmitted and absorbed when collision occurs. The assembly accuracy of anti-collision beam directly affects its performance, so in the production process, the relative position of energy-absorbing box and anti-collision beam body needs to be accurately positioned, and the stability of welding process needs to be ensured.

[0003] At present, in the assembly process of anti-collision beam, the installation of energy-absorbing box usually depends on manual positioning or simple clamps. Since the anti-collision beam body has a long structure and a certain curvature, manual positioning is not only cumbersome to operate, but also prone to positional deviation, which affects the welding quality. In addition, most of the existing clamps adopt unilateral fixing method, which cannot reliably clamp the energy-absorbing box and the anti-collision beam at the same time, resulting in the possibility of misplacement of the energy-absorbing box during welding, which affects the assembly accuracy. In addition, the traditional assembly tool lacks effective limiting structure, and the anti-collision beam is prone to move or tilt when placed, which reduces the matching accuracy between the energy-absorbing box and the anti-collision beam, and affects the consistency and quality stability of the product. SUMMARY

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a positioning tool for anti-collision beam assembly, which can realize accurate positioning and stable clamping of anti-collision beam and energy-absorbing box through the cooperation of limiting groove, positioning groove, clamping mechanism and driving system, and improve the welding quality and production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A positioning tool for anti-collision beam assembly, comprising a workbench, an energy-absorbing box and an anti-collision beam body, a support seat for limiting and supporting the middle part of the anti-collision beam body is fixed at the middle position of the upper surface of the workbench, and positioning seats for positioning and placing the two end parts of the anti-collision beam body are fixed at the positions close to the left and right ends of the upper surface of the workbench.

[0007] Supporting frames are also provided at the positions close to the left and right ends of the upper surface of the workbench, two clamping pieces for clamping and positioning the energy-absorbing box are installed on the supporting frames, and a driving assembly for driving the relative movement of the two clamping pieces is installed on the supporting frames.

[0008] Further, the support frame comprises a column fixed on the workbench, and a guide rod for guiding movement of the two clamping members is fixed on the upper end of the column, and the driving assembly is installed on the guide rod.

[0009] Further, the clamping member comprises a clamping sleeve similar to the shape of the energy absorption box, one end of the clamping sleeve is fixed with a connecting rod, and the end of the connecting rod away from the clamping sleeve is fixed with a sliding block clamped in the guide rod, and a guide groove for clamping the sliding block is formed in the guide rod.

[0010] Further, the driving assembly comprises a bidirectional screw rod arranged in the guide groove and a fixed plate fixed on one end of the guide rod, one side of the fixed plate is fixed with a motor for driving the bidirectional screw rod to rotate, and the bidirectional screw rod is screwed through the sliding block.

[0011] Further, the upper surface of the positioning seat is provided with a positioning groove for positioning the end part of the crash beam body, and the front and rear sides of the positioning seat are fixed with first mounting plates.

[0012] Further, the upper surface of the support seat is provided with a limiting groove for limiting and supporting the crash beam body, and the front and rear sides of the support seat are fixed with second mounting plates.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model provides a kind of positioning tool for crash beam assembly, can effectively solve the problems of inaccurate assembly positioning, insufficient clamping stability, energy absorption box welding mispositioning and poor tool structure stability in prior art, improve the assembly accuracy and production efficiency of crash beam and its accessories.

[0015] The utility model realizes the accurate limiting placement of the crash beam body by setting support seat and positioning seat on the workbench.The limiting groove of support seat can stably support the middle part of crash beam body, prevent displacement or inclination during assembly;The positioning groove of positioning seat can ensure that the two ends of crash beam body are in symmetrical and stable state, avoid mispositioning after energy absorption box welding due to position deviation, improve assembly accuracy, and guarantee the reliability of overall structure of crash beam.

[0016] The utility model realizes the accurate clamping of energy absorption box by setting clamping member and driving clamping member synchronous movement by bidirectional screw rod.The inner wall of the clamping sleeve of clamping member is provided with silica gel gasket, which can effectively prevent scratching the surface of energy absorption box during clamping, and at the same time, enhance clamping stability, avoid position deviation of energy absorption box during welding.The driving assembly adopts high-precision ball screw and stepper motor, which can realize accurate control of clamping force and positioning position, avoid error caused by manual adjustment, and improve the automation level and consistency of assembly.

[0017] The utility model discloses a support frame is formed by the vertical column, guide rod and fixed plate, and the support frame structure is stable, can guarantee that the clamping assembly has good rigidity and deformation resistance when working. The guide rod is provided with sliding block and guide groove, ensures that the clamping piece moves stably along the fixed track in the movement process, will not deviate or jam, improves the reliability and repeat accuracy of the clamping action. In addition, the front and back of the positioning seat and the support seat are provided with mounting plates, further enhance the stability of the overall structure of the tool, avoid the decline of positioning accuracy due to long -term use or vibration, ensure the stability and long -term reliability of the crash beam assembly quality.

[0018] The utility model discloses tool design is reasonable, can be applicable to different specifications' crash beam and energy absorption box assembly demand. The adjustment range of clamping piece is big, can adapt to different size energy absorption box, and the size of limiting groove and positioning groove is optimized design, ensures that the crash beam body can be placed stably, adapts to different shape crash beam, improves the versatility and adaptability of tool. The whole tool is made of high-strength carbon steel and alloy steel, ensures the durability and long-term stability of equipment, reduces equipment maintenance and replacement cost, improves production efficiency and economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is overall structure schematic diagram of the utility model;

[0020] Figure 2 It is clamping piece schematic diagram of the utility model;

[0021] Figure 3 It is drive assembly schematic diagram of the utility model;

[0022] Figure 4 It is positioning seat schematic diagram of the utility model;

[0023] Figure 5 It is support seat schematic diagram of the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1, workbench;2, vertical column;3, guide rod;4, drive assembly;41, bidirectional screw;42, fixed plate;43, motor;5, clamping piece;51, sliding block;52, connecting rod;53, clamp cover;6, energy absorption box;7, positioning seat;71, first mounting plate;72, positioning groove;8, crash beam body;9, support seat;91, second mounting plate;92, limiting groove. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of the utility model more clearly, the utility model is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model and does not strictly limit the protection scope of the utility model specifically requested. Embodiments

[0027] As Figure 1 shown, a kind of positioning tool for crash beam assembly, including workbench 1, energy-absorbing box 6 and crash beam body 8;Workbench 1 is made of carbon steel material, to improve carrying capacity and service life, the middle position of the upper surface of workbench 1 is fixed with support seat 9, support seat 9 is used to limit the middle part of crash beam body 8 and support, to prevent the displacement or inclination of crash beam body 8 during assembly;The upper surface of workbench 1 is fixed with positioning seat 7 near left and right two end positions, positioning groove 72 for positioning and placing the two end portions of crash beam body 8 is opened on positioning seat 7, to ensure the symmetry and stability of crash beam body 8 during assembly, ensure the accuracy of energy-absorbing box 6 welding position.

[0028] As Figure 1 shown, the upper surface of workbench 1 is also provided with support frame near left and right two end positions, support frame is made of Q235 carbon steel material, and is fixed on workbench 1 by welding and bolt connection, to improve overall rigidity and stability;Two clamping pieces 5 for clamping and positioning energy-absorbing box 6 are installed on support frame, clamping piece 5 can stably clamp energy-absorbing box 6 by the way of adjustable clamping force, to prevent energy-absorbing box 6 from displacement during welding;In addition, driving assembly 4 for driving two clamping pieces 5 relative motion is also installed on support frame, driving assembly 4 can accurately control the opening and closing of clamping piece 5, to adapt to energy-absorbing box 6 of different specifications, improve the versatility of tool.

[0029] As Figure 1 shown, support frame includes column 2 fixed on workbench 1, column 2 is made of solid round steel with diameter of 50mm, to enhance the strength and deformation resistance of overall structure;The upper end of column 2 is fixed with guide rod 3 longitudinally, guide rod 3 is made of high-precision linear bearing guide rail, to ensure the stability and accuracy of two clamping pieces 5 during movement, prevent deviation during clamping process;Driving assembly 4 is installed on guide rod 3, by the linear guiding action provided by guide rod 3, so that clamping piece 5 can slide along the set track, ensure the positioning accuracy of energy-absorbing box 6.

[0030] As Figure 1 and Figure 2As shown, the clamping piece 5 includes a sleeve 53 similar to the shape of the energy absorption box 6, the inner wall of the sleeve 53 is lined with silica gel pad to avoid scratching the surface of the energy absorption box 6, while providing better clamping force; One end of the sleeve 53 is fixed with a connecting rod 52, the material of the connecting rod 52 is high-strength alloy steel to ensure that it does not deform and fatigue damage during long-term use; The end of the connecting rod 52 away from the sleeve 53 is fixed with a sliding block 51, the outer side of the sliding block 51 is provided with a ball slide rail to reduce sliding friction and improve the smoothness and durability of the movement; The sliding block 51 is clamped on the guide rod 3 and is limited by the guide groove on the guide rod 3 to ensure that the movement direction of the clamping piece 5 is accurate and reliable, and to improve the stability when clamping the energy absorption box 6.

[0031] As shown in Figure 3 The driving assembly 4 includes a bidirectional screw rod 41 arranged in the guide groove, the bidirectional screw rod 41 is a T8 precision ball screw to ensure higher transmission efficiency and smaller friction loss during driving; One end of the bidirectional screw rod 41 penetrates through the fixed plate 42, the fixed plate 42 is made of 40Cr alloy steel to improve rigidity and wear resistance and prevent loosening after long-term use; One side of the fixed plate 42 is fixed with a motor 43, the motor 43 is a stepping motor with a rated power of 150W and a rotating speed of 3000rpm, the stepping motor can accurately control the rotating angle of the bidirectional screw rod 41 to realize fine adjustment of the clamping piece 5; The bidirectional screw rod 41 is screwed through the sliding block 51, and the sliding block 51 is driven to move relatively along the guide groove by bidirectional rotation, thereby driving the clamping piece 5 to be clamped or released synchronously, ensuring that the energy absorption box 6 can maintain accurate position during welding.

[0032] As shown in Figure 4 The upper surface of the positioning seat 7 is provided with a positioning groove 72, the width of the positioning groove 72 is 50mm, and the depth is 20mm, so as to adapt to different specifications of the crash beam body 8 and ensure stable placement; The front and rear sides of the positioning seat 7 are fixed with first mounting plates 71, the first mounting plates 71 are made of Q345B high-strength steel plate and are fixed on the workbench 1 by high-strength bolt connection to ensure that the positioning seat 7 will not loosen or displace due to vibration or external force during long-term use.

[0033] As shown in Figure 5 The upper surface of the support seat 9 is provided with a limiting groove 92, the width of the limiting groove 92 is 55mm, and the depth is 25mm, and the inner wall of the limiting groove 92 is provided with a wear-resistant lining to prevent the crash beam body 8 from being damaged due to friction during placement; The front and rear sides of the support seat 9 are fixed with second mounting plates 91, the second mounting plates 91 are made of the same material as the first mounting plates 71 and are fixedly connected with the support seat 9 by welding process to provide higher stability and impact resistance and ensure that the crash beam body 8 will not displace during positioning. Embodiment

[0034] The embodiment provides a precise limiting device for a crash beam body based on a limiting groove and a positioning groove, so as to solve the problem that the crash beam body is prone to deviation and tilting during assembly in the prior art. The workbench 1 is made of Q235B carbon steel plate and has a thickness of 12 mm, so as to ensure good load-bearing capacity and structural stability; the middle part of the workbench 1 is provided with a supporting seat 9, the supporting seat 9 is made of 45# steel and is fixed on the workbench 1 in a welding mode, so as to ensure that the middle part of the crash beam body 8 can be stably placed; a limiting groove 92 is formed in the upper surface of the supporting seat 9, the limiting groove 92 has a width of 55 mm and a depth of 25 mm, and a wear-resistant rubber pad is attached in the groove, so as to prevent the crash beam body 8 from sliding or surface damage during placement.

[0035] Positioning seats 7 are fixed at the left and right ends of the workbench 1, the positioning seats 7 are made of Q345B high-strength steel material, so as to ensure that no deformation occurs during long-term use; a positioning groove 72 with a width of 50 mm and a depth of 20 mm is formed in the upper surface of the positioning seat 7, the design of the positioning groove 72 is matched with the end structure of the crash beam body 8, so as to ensure that the end part of the crash beam body 8 can be stably positioned; in addition, first mounting plates 71 are fixed on the front and rear sides of the positioning seat 7, the first mounting plates 71 are made of steel plates with a thickness of 10 mm and are connected with the workbench 1 through high-strength bolts, so as to enhance the overall fixing strength and impact resistance. The embodiment ensures that the crash beam body 8 does not displace during assembly, improves the precision of assembly, and guarantees the welding quality. Embodiment

[0036] The embodiment provides a positioning structure of an energy absorption box based on a clamping piece, so as to solve the problem that the energy absorption box is prone to misplacement during welding in the prior art. The supporting frame is composed of a stand column 2 and a guide rod 3, the stand column 2 is a solid round steel with a diameter of 50 mm and is fixed on the workbench 1 in a welding mode, so as to enhance the overall stability; the guide rod 3 is vertically installed on the top of the stand column 2, the guide rod 3 is a high-precision linear bearing guide rail, so as to ensure that the clamping piece 5 can slide smoothly and will not deviate or be stuck.

[0037] The clamping piece 5 comprises a clamping sleeve 53, a connecting rod 52 and a sliding block 51. The clamping sleeve 53 is made of aluminum alloy material and is provided with a 3mm-thick silica gel lining on the inner wall to avoid scratching the surface of the energy absorption box 6 and improve the stability of clamping. One end of the clamping sleeve 53 is fixedly connected with the connecting rod 52. The connecting rod 52 is made of 40Cr alloy steel and is subjected to quenching treatment to improve the fatigue strength and wear resistance. The other end of the connecting rod 52 is fixedly connected with the sliding block 51. The sliding block 51 is made of wear-resistant polytetrafluoroethylene (PTFE) material to reduce friction and improve smoothness of sliding. The sliding block 51 is embedded in the guide groove of the guide rod 3 to ensure that the clamping piece 5 is stable and accurate during movement. In this embodiment, the energy absorption box 6 is clamped and positioned by the clamping piece 5, which ensures the alignment accuracy of the energy absorption box 6 and the anti-collision beam body 8 and improves the consistency of welding. Embodiment

[0038] The embodiment provides a clamping structure based on bidirectional screw rod driving to solve the problems that the clamping piece cannot move synchronously and the clamping force is difficult to accurately adjust in the prior art. The driving assembly 4 comprises a bidirectional screw rod 41, a fixed plate 42 and a motor 43. The bidirectional screw rod 41 is a T8-grade precision ball screw with a thread accuracy of 0.02mm to ensure synchronous clamping movement of the clamping piece 5. One end of the bidirectional screw rod 41 penetrates through the fixed plate 42. The fixed plate 42 is made of 40Cr alloy steel and is fixed to one end of the guide rod 3 by welding to ensure overall rigidity and wear resistance.

[0039] The motor 43 is a stepping motor with a rated power of 150W and a rotating speed of 3000rpm. The stepping motor is connected with the bidirectional screw rod 41 through a shaft coupling and is accurately controlled in rotating angle by a PLC controller. When the motor 43 rotates forward, the bidirectional screw rod 41 drives the two sliding blocks 51 to move in opposite directions, so that the clamping piece 5 moves synchronously towards each other and clamps the energy absorption box 6. When the motor 43 rotates reversely, the clamping piece 5 synchronously releases the energy absorption box 6. Through efficient transmission of the ball screw, the embodiment can ensure accuracy and repeat accuracy in the clamping process and improve the reliability of assembly of the energy absorption box 6. Embodiment

[0040] The embodiment provides an anti-collision beam positioning tool based on installation plate reinforcement to solve the problems that the tool structure has poor stability and is prone to loosening after long-term use in the prior art. The workbench 1 is made of Q235B carbon steel with a thickness of 12mm and is subjected to rust-proof treatment on the surface to improve durability. The front and rear sides of the positioning seat 7 and the support seat 9 are respectively provided with a first installation plate 71 and a second installation plate 91. The installation plates are made of Q345B high-strength steel plates with a thickness of 10mm and are fixedly connected with the workbench 1 through 8.8-grade high-strength bolts to enhance the rigidity and impact resistance of the tool as a whole.

[0041] The column 2 of the support frame adopts a solid round steel with a diameter of 50 mm and is welded and fixed with the workbench 1 through a bottom flange plate to ensure the stability of the overall structure; the guide rod 3 adopts high-strength chromium-plated steel and is coated with rust-proof oil on the surface to reduce wear and corrosion during long-term use; in addition, high-strength bolts are used at all connection positions, and lock washers are added to prevent loosening caused by vibration after long-term use. The embodiment optimizes the overall structure of the tooling, improves the stability and service life of positioning, and ensures that the tooling maintains high-precision positioning capability during long-term use. Embodiment

[0042] The embodiment provides an assembly tooling suitable for different specifications of anti-collision beams and energy absorption boxes to solve the poor adaptability of tooling in the prior art. The clamping sleeve 53 of the clamping piece 5 is designed as an adjustable structure, the inner wall of the clamping sleeve 53 is provided with a plurality of replaceable silica gel gaskets, and silica gel gaskets with different thicknesses can be used for energy absorption boxes 6 of different sizes to adapt to different production requirements; in addition, the connecting rod 52 of the clamping piece 5 is provided with a length-adjustable mechanism, which can be adjusted according to energy absorption boxes 6 of different sizes to ensure the accuracy of clamping.

[0043] The size of the limiting groove 92 and the positioning groove 72 is designed as an adjustable structure, the width of the positioning groove 72 is adjusted to 40-60 mm to adapt to different models of anti-collision beam bodies 8, and the depth of the limiting groove 92 is adjusted to 20-30 mm to adapt to different shapes of the anti-collision beam body 8. In addition, the control system of the motor 43 is pre-set with multiple operation modes, which can be accurately adjusted according to different specifications of the energy absorption box 6 and the anti-collision beam body 8. The embodiment improves the universality of the tooling through structural optimization, reduces the equipment replacement cost in the production process, and improves the production efficiency.

[0044] The working principle of the utility model discloses a work principle is: when assembling and welding the energy absorption box 6 on the anti-collision beam body 8, the middle part of the anti-collision beam body 8 is placed in the limiting groove 92 of the support seat 9, and the two ends of the anti-collision beam body 8 are clamped in the positioning groove 72 of the two side positioning seats 7 respectively, so that the positioning and placement of the anti-collision beam body 8 are completed.

[0045] Then the energy absorption box 6 is placed on the anti-collision beam body 8 close to the end position and aligned with the clamping sleeve 53 on the clamping piece 5, at this time, the motor 43 is started to drive the bidirectional screw rod 41 to rotate, the rotating bidirectional screw rod 41 drives the two sliding blocks 51 to move relatively, and the two sliding blocks 51 drive the two clamping sleeves 53 to move relatively through the connecting rod 52 to clamp the energy absorption box 6 in the middle, so that the positioning of the energy absorption box 6 on the anti-collision beam body 8 is completed, at this time, the energy absorption box 6 and the anti-collision beam body 8 can be welded and fixed, so that the assembly and fixation of the accessories on the anti-collision beam body 8 are completed.

[0046] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A positioning tool for assembling a crash beam, comprising a workbench (1), an energy absorption box (6) and a crash beam body (8), characterized in that: The middle position of the upper surface of the workbench (1) is fixed with a support seat (9) for limiting and supporting the middle part of the anti-collision beam body (8), and the upper surface of the workbench (1) is fixed with a positioning seat (7) for positioning and placing the two end parts of the anti-collision beam body (8) near the left and right two end positions. The upper surface of the workbench (1) is also provided with a support frame near the left and right two end positions, the support frame is provided with two clamping members (5) for clamping and positioning the energy absorption box (6), and the support frame is provided with a driving assembly (4) for driving the relative movement of the two clamping members (5).

2. The positioning tool for assembling the anti-collision beam according to claim 1, characterized in that: The support frame comprises a column (2) fixed on the workbench (1), the upper end of the column (2) is longitudinally fixed with a guide rod (3) for guiding the movement of the two clamping members (5), and the driving assembly (4) is installed on the guide rod (3).

3. The positioning tool for assembling the anti-collision beam according to claim 1, characterized in that: The clamping member (5) comprises a clamping sleeve (53) similar in shape to the energy absorption box (6), one end of the clamping sleeve (53) is fixed with a connecting rod (52), the end of the connecting rod (52) away from the clamping sleeve (53) is fixed with a sliding block (51) clamped in the guide rod (3), and the guide rod (3) is provided with a guide groove for clamping the sliding block (51).

4. The positioning tool for assembling the anti-collision beam according to claim 3, characterized in that: The driving assembly (4) comprises a bidirectional screw rod (41) arranged in the guide groove and a fixed plate (42) fixed on one end of the guide rod (3), one side of the fixed plate (42) is fixed with a motor (43) for driving the rotation of the bidirectional screw rod (41), and the bidirectional screw rod (41) is threaded through the sliding block (51).

5. The positioning tool for assembling the anti-collision beam according to claim 2, characterized in that: The upper surface of the positioning seat (7) is provided with a positioning groove (72) for positioning the end part of the anti-collision beam body (8), and the front and rear sides of the positioning seat (7) are fixed with first mounting plates (71).

6. The positioning tool for assembling the anti-collision beam according to claim 2, characterized in that: The upper surface of the support seat (9) is provided with a limiting groove (92) for limiting and supporting the anti-collision beam body (8), and the front and rear sides of the support seat (9) are fixed with second mounting plates (91). The upper surface of the support seat (9) is provided with a limiting groove (92) for limiting and supporting the anti-collision beam body (8), and the front and rear sides of the support seat (9) are fixed with second mounting plates (91).

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