A tooling for assembling front beams of automobiles

Abstract

This utility model discloses a front beam assembly fixture for automobiles, belonging to the field of tooling and fixture technology. It includes: a fixture base plate with a clearance groove along its central axis, the workpiece being positioned at the top of the clearance groove; end support mechanisms located at both ends of the clearance groove for supporting the two ends of the workpiece; side support mechanisms arranged along both sides of the clearance groove for supporting the two sides of the workpiece; end clamping mechanisms located on both sides of the end of the clearance groove for clamping the top and bottom surfaces of the workpiece; and bottom support mechanisms arranged along both sides of the clearance groove for supporting the two bottom sides of the workpiece. This structure achieves multi-point coordinated clamping and support of the workpiece, subjecting it to all-around constraint during machining, significantly improving clamping stability and machining accuracy, while avoiding interference of the fixture structure with the tool path, thus improving machining efficiency and process adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a tooling for assembling the front beam of an automobile. Background Technology

[0002] In the automotive manufacturing industry, the front beam is a key load-bearing component in the vehicle body structure. Its machining accuracy directly affects the assembly quality and safety performance of the entire vehicle. When machining the front beam of an automobile, it is usually necessary to install it on a special fixture and use the fixture to position and clamp the workpiece. Due to the requirements of the machining process, the cutting tool often needs to feed upward from the bottom of the fixture. This machining method places higher demands on the clamping and support structure of the fixture.

[0003] Traditional fixture support structures typically employ rigid supports, which, while ensuring workpiece positioning stability, struggle to accommodate the need for obstacle avoidance during machining. This is especially true when the tool is fed from the bottom up; if the support structure is poorly laid out, it can easily interfere with the tool path, hindering smooth machining and potentially leading to workpiece scrap or equipment damage. Utility Model Content

[0004] This utility model addresses the aforementioned problems in the existing technology by proposing a sequential tooling for assembling automotive front beams that can stably support the workpiece while also accommodating the needs of tool feed and avoidance.

[0005] This utility model can be achieved through the following technical solutions:

[0006] A tooling for assembling front beams of automobiles, comprising:

[0007] The fixture base plate has a clearance groove along its central axis in the length direction. The workpiece is located at the top of the clearance groove, and the clearance groove forms a tool inlet space.

[0008] An end support mechanism is provided on the base plate of the fixture and located at both ends of the clearance groove. The end support mechanism is used to support both ends of the workpiece.

[0009] A side support mechanism is provided on the base plate of the fixture and arranged along both sides of the clearance groove. The side support mechanism is used to support the two sides of the workpiece.

[0010] An end clamping mechanism is disposed on the base plate of the fixture and located on both sides of the end of the clearance groove. The end clamping mechanism is used to clamp the top and bottom surfaces of the workpiece.

[0011] A bottom support mechanism is provided on the base plate of the fixture and arranged along both sides of the clearance groove. The bottom support mechanism is used to support the two sides of the bottom of the workpiece.

[0012] As a further improvement of this utility model, the end support mechanism is configured as an end support cylinder, whose cylinder shaft extends out to support the end of the workpiece.

[0013] As a further improvement of this utility model, the side support mechanism includes a side support block, the support surface of the side support block abuts against the side of the workpiece, and the top of the support surface of the side support block is provided with a guide slope.

[0014] As a further improvement of this utility model, the side support block located on one side of the workpiece is close to the middle section of the workpiece, and the side support block located on the other side of the workpiece is close to the end of the workpiece.

[0015] As a further improvement of this utility model, the side support mechanism also includes a side support cylinder, whose cylinder shaft extends out to support the side of the workpiece.

[0016] As a further improvement of this utility model, the end clamping mechanism is configured as an end clamping cylinder, the base of the end clamping cylinder is supported along the bottom of the workpiece, and a pressing block is installed on the cylinder shaft of the end clamping cylinder. The pressing block is located at the top of the workpiece and is used to press down the workpiece.

[0017] As a further improvement of this utility model, the bottom support mechanism includes:

[0018] A lever base for mounting on a clamp base plate;

[0019] A lever block, which is hinged to the lever base and used to support the workpiece;

[0020] A spring plunger is located at the bottom of the lever block and is used to provide initial support force for the workpiece;

[0021] A support cylinder is located at the bottom of the lever block and is used to provide rigid support force for the workpiece.

[0022] As a further improvement of this utility model, the two ends of the lever block are a connecting end and a supporting end, respectively. The connecting end is hinged to the lever base, and the supporting end is used to support the workpiece.

[0023] As a further improvement of this utility model, the spring plunger is vertically arranged and is close to or located at the bottom of the support end of the lever block;

[0024] The support cylinder is vertically positioned and located at the bottom of the middle section of the lever block.

[0025] As a further improvement of this utility model, the workpiece presses the lever block down until it abuts against the spring plunger, so that the spring plunger provides the initial support force for the workpiece;

[0026] The cylinder shaft of the support cylinder applies a rigid support force to the lever block, which is then transmitted to the support end to lock the workpiece position.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Multi-directional collaborative clamping significantly improves clamping stability: Through the synergistic action of the end support cylinder, side support block, side support cylinder, end clamping cylinder and bottom lever support mechanism, the workpiece is clamped and limited in all directions at the end, side, top and bottom, effectively preventing displacement, vibration or deformation during processing, and significantly improving clamping stability and processing accuracy.

[0029] 2. Optimized clearance groove design to improve tool entry flexibility: The fixture base plate has a clearance groove in the middle to provide ample tool entry space. Combined with the bottom support mechanism set on both sides of the workpiece, it avoids the fixture interfering with the tool path, thereby improving machining efficiency and process adaptability.

[0030] 3. Lever-type bottom support structure, balancing flexible and rigid support requirements: The combination of lever block + spring plunger + support cylinder is adopted. First, the spring plunger provides initial flexible support to buffer the positioning impact, and then the support cylinder provides rigid clamping force to lock the workpiece position, realizing staged control and lever arm amplification effect in the clamping process, enhancing support rigidity and self-adaptive capability.

[0031] 4. Asymmetrical support layout enhances adaptability to complex workpieces: The side support mechanism adopts an asymmetrical arrangement to adapt to the uneven stress and complex structure of automotive front beam workpieces, thereby improving the versatility and clamping reliability of the fixture. Attached Figure Description

[0032] Figure 1 This is a top view of the automotive front beam assembly tooling of this utility model;

[0033] Figure 2 This is the utility model Figure 1 Sectional view of AA;

[0034] Figure 3 This is a structural schematic diagram of the automotive front beam assembly tooling of this utility model;

[0035] Figure 4 This is a schematic diagram of the bottom surface of the automotive front beam assembly tooling of this utility model.

[0036] In the diagram, 100 is the fixture base plate; 110 is the clearance groove; 120 is the end support cylinder; 130 is the side support block; 131 is the guide slope; 140 is the side support cylinder; 150 is the end clamping cylinder; 151 is the base; 152 is the lower pressure block; 160 is the bottom support mechanism; 161 is the lever base; 162 is the lever block; 1621 is the connecting end; 1622 is the support end; 163 is the spring plunger; 164 is the support cylinder; and 200 is the workpiece. Detailed Implementation

[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0038] like Figures 1-4 As shown, this utility model provides a tooling for assembling a front beam of an automobile, comprising:

[0039] The fixture base plate 100 has a clearance groove 110 along its central axis in the length direction. The workpiece 200 is located at the top of the clearance groove 110. The clearance groove 110 forms a tool entry space. The tool enters from the bottom of the fixture base plate 100 and passes through the clearance groove 110 to process the workpiece 200.

[0040] The end support mechanism is set on the fixture base plate 100 and located at both ends of the clearance groove 110. The end support mechanism is used to support both ends of the workpiece 200 to prevent it from shifting axially during processing.

[0041] The side support mechanism is arranged on the base plate 100 of the fixture and along both sides of the clearance groove 110. The side support mechanism is used to support the two sides of the workpiece 200, thereby limiting and supporting the workpiece 200 from the side and preventing it from swaying left and right.

[0042] The end clamping mechanism is set on the fixture base plate 100 and located on both sides of the end of the clearance groove 110. The end clamping mechanism is used to clamp the top and bottom surfaces of the workpiece 200 to achieve rigid clamping of the end of the workpiece 200 and prevent it from jumping up and down.

[0043] The bottom support mechanism 160 is disposed on the fixture base plate 100 and arranged on both sides of the clearance groove 110. The bottom support mechanism 160 is used to support the two sides of the bottom of the workpiece 200, thereby providing a stable support force to the bottom of the workpiece 200.

[0044] Through the aforementioned multi-point coordinated clamping and support structure, the workpiece 200 is constrained in all directions during the processing, which significantly improves the stability and reliability of clamping and ensures processing accuracy and safety.

[0045] Compared with the problems of unstable workpiece clamping and lack of tool feed avoidance layout in the existing technology, the tooling provided in this embodiment has at least the following advantages:

[0046] 1. More stable clamping: Through multi-directional support and clamping at the ends, sides, bottom and top, the workpiece 200 is effectively prevented from shifting, vibrating or deforming during the processing, which significantly improves clamping stability and processing accuracy.

[0047] 2. More flexible tool entry and avoidance: The fixture base plate 100 is provided with a clearance groove 110 in the center, which provides ample entry space for the machining tool. At the same time, the bottom support mechanism 160 supports the workpiece 200 on both sides of the bottom, avoiding interference of the fixture structure with the machining path, and improving machining efficiency and process adaptability.

[0048] Overall, the tooling provided in this embodiment effectively solves the problems of unstable clamping and limited machining avoidance in existing fixtures in terms of structural design and functional implementation. It has good practicality and promotion value and is suitable for the high-precision and high-efficiency machining needs of front beam workpieces 200 in the automotive manufacturing field.

[0049] Preferably, the end support mechanism is configured as an end support cylinder 120. When working, the cylinder shaft of the end support cylinder 120 extends and pushes the support end 1622 to contact the end of the workpiece 200, thereby realizing active support for the end of the workpiece 200.

[0050] Preferably, the side support mechanism includes a side support block 130 and a side support cylinder 140, which work together to achieve stable support and positioning of the side of the workpiece 200.

[0051] The side support blocks 130 are fixed to the fixture base plate 100 and are arranged on both sides of the clearance groove 110. Their support surfaces are in contact with the side of the workpiece 200 to provide lateral limiting and support.

[0052] To facilitate the rapid positioning and clamping of the workpiece 200, a guide slope 131 is provided on the top of the support surface. The guide slope 131 can guide the workpiece 200 during placement, allowing the workpiece 200 to slide smoothly into the correct position and avoiding the impact of positioning deviation on clamping accuracy.

[0053] In addition, in order to enhance the support adaptability of the overall structure of the workpiece 200, the side support block 130 located on one side of the workpiece 200 is close to the middle section, while the side support block 130 located on the other side is close to the end of the workpiece 200. This asymmetrical distribution design can better match the stress characteristics of the front beam type workpiece 200, and is especially suitable for workpieces 200 with asymmetrical structure or uneven stress, thereby improving clamping stability and processing safety.

[0054] Furthermore, the side support cylinder 140 is set as an active support element on one or both sides of the workpiece 200. After its cylinder shaft extends, it can apply an additional lateral clamping force to the workpiece 200 to prevent the workpiece 200 from shifting or shaking due to cutting force during processing, thereby further enhancing the rigidity and reliability of clamping.

[0055] Overall, by introducing a support block with a guide ramp 131 and a side support cylinder 140 into the side support mechanism and adopting an asymmetrical arrangement, not only is the clamping stability and positioning accuracy of the fixture on the workpiece 200 improved, but the adaptability to workpieces 200 with complex structures is also enhanced.

[0056] Preferably, the end clamping mechanism is an end clamping cylinder 150. The base 151 of the end clamping cylinder 150 is fixed on the fixture base plate 100, and its supporting force is transmitted to the bottom of the workpiece 200 through structural design. At the same time, its cylinder shaft is arranged vertically upward and connected to a lower pressure block 152. When the cylinder is actuated, the cylinder shaft drives the lower pressure block 152 to move downward, applying a clamping force to the top of the workpiece 200, thereby realizing bidirectional clamping of the workpiece 200 (bottom support + top pressure) and forming a stable clamping state.

[0057] This clamping method can not only effectively prevent the workpiece 200 from jumping up and down or shifting due to cutting force during processing, but also achieve rapid response and automatic switching of clamping action through pneumatic control, which is suitable for continuous operation needs in automated production lines.

[0058] Preferably, the bottom support mechanism 160 includes:

[0059] Lever base 161, which is used for mounting on clamp base plate 100;

[0060] Lever block 162, which is hinged to lever base 161 and used to support workpiece 200;

[0061] Spring plunger 163 is disposed at the bottom of lever block 162 and is used to provide initial support force for workpiece 200;

[0062] A support cylinder 164 is located at the bottom of the lever block 162 and is used to provide rigid support force for the workpiece 200.

[0063] It is worth mentioning that the bottom support structure is designed based on the lever principle, achieving stable support for the workpiece 200 through the synergistic effect of elastic and rigid support. The specific support principle is explained as follows:

[0064] First, when the workpiece 200 is placed on the lever block 162, the lever block 162 rotates around the lever base 161, the lever block 162 presses down and contacts the spring plunger 163, the spring plunger 163 provides initial elastic support force to buffer the downward pressure of the workpiece 200 and initially position the workpiece 200.

[0065] Subsequently, the cylinder axis of the support cylinder 164 extends upward and contacts the lever block 162, providing rigid support force. The support force is transmitted to the support end 1622 of the lever block 162 through the lever block 162, thereby achieving rigid locking of the workpiece 200 and ensuring that it will not be displaced or deformed during processing.

[0066] This lever-type bottom support mechanism 160 has at least the following advantages:

[0067] 1. Flexible structural layout to avoid interference: Since the lever block 162 is installed by hinge, its support point can be flexibly adjusted according to the shape of the workpiece 200 and the machining path, effectively avoiding the tool entry area and avoiding machining interference;

[0068] 2. Reasonable force distribution improves machining accuracy: Through the lever principle, the rigid support force provided by the support cylinder 164 is amplified at the support end 1622, thereby enhancing the clamping stability of the workpiece 200, reducing minor deformations during machining, and improving machining accuracy.

[0069] 3. Staged support with strong adaptability: Spring plunger 163 provides initial flexible support to adapt to workpieces 200 of different weights and shapes; support cylinder 164 then provides rigid support to ensure that workpiece 200 remains stable during processing and avoids displacement caused by vibration or cutting force.

[0070] 4. High degree of automation and convenient operation: The cooperation between the spring plunger 163 and the support cylinder 164 can realize the automatic triggering of the support process without manual intervention, thereby improving the automation level and efficiency of the fixture.

[0071] Preferably, the two ends of the lever block 162 are a connecting end 1621 and a supporting end 1622, respectively. The connecting end 1621 is hinged to the lever base 161, and the supporting end 1622 is used to support the workpiece 200. Based on this structure, the spring plunger 163 is vertically arranged and close to or located at the bottom of the supporting end 1622 of the lever block 162. It is used to contact the lever block 162 first when the workpiece 200 is placed, providing initial elastic support force. The support cylinder 164 is also vertically arranged, but located at the bottom of the middle section of the lever block 162. It is used to start after the spring plunger 163 is compressed, providing subsequent rigid support force.

[0072] This setup is based on the lever principle. By arranging the spring plunger 163 and the support cylinder 164 at different positions on the lever block 162, the supporting force is transmitted in stages.

[0073] The spring plunger 163 is located near the support end 1622 and can respond quickly when the workpiece 200 presses down on the lever block 162, providing flexible cushioning;

[0074] The support cylinder 164 is located at the bottom of the middle section of the lever block 162. By utilizing the lever amplification effect, the rigid support force is effectively transmitted to the support end 1622, thereby enhancing the clamping stability of the workpiece 200.

[0075] This structure not only enhances the self-adaptability and support rigidity of the fixture, but also effectively avoids the uneven force and interference problems caused by the fixed support points in traditional support structures. It is particularly suitable for complex machining applications that require high-precision positioning and stable support.

[0076] Furthermore, the point where lever block 162 abuts against spring plunger 163 is an elastic support point, and the point where lever block 162 abuts against support cylinder 164 is a rigid support point.

[0077] The horizontal distance from the connecting end 1621 of the lever block 162 to the rigid support point is greater than the horizontal distance from the rigid support point to the elastic support point. This structural design makes full use of the lever principle. By reasonably arranging the positions of the two support points, the lever arm difference is achieved when the support force is transmitted on the lever block 162, thereby optimizing the support effect.

[0078] Specifically, when the support cylinder 164 provides rigid support force, since its point of action is far from the connection end 1621 and its lever arm is long, it can effectively transmit the support force to the elastic support point near the support end 1622 through the lever amplification effect, thereby enhancing the clamping rigidity and stability of the workpiece 200 support end 1622.

[0079] Meanwhile, the elastic support force provided by the spring plunger 163 still retains a certain buffering performance, avoiding the impact of rigid impact on the positioning of the workpiece 200. This structure not only improves the clamping accuracy of the fixture on the workpiece 200, but also enhances the adaptability and force balance of the support system, making it particularly suitable for automated processing scenarios with high requirements for support stability and machining accuracy.

[0080] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0081] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0082] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0083] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0084] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A tooling for assembling a front beam of an automobile, characterized in that, include: The fixture base plate has a clearance groove along its central axis in the length direction. The workpiece is located at the top of the clearance groove, and the clearance groove forms a tool inlet space. An end support mechanism is provided on the base plate of the fixture and located at both ends of the clearance groove. The end support mechanism is used to support both ends of the workpiece. A side support mechanism is provided on the base plate of the fixture and arranged along both sides of the clearance groove. The side support mechanism is used to support the two sides of the workpiece. An end clamping mechanism is disposed on the base plate of the fixture and located on both sides of the end of the clearance groove. The end clamping mechanism is used to clamp the top and bottom surfaces of the workpiece. A bottom support mechanism is provided on the base plate of the fixture and arranged along both sides of the clearance groove. The bottom support mechanism is used to support the two sides of the bottom of the workpiece.

2. The automotive front beam assembly tooling according to claim 1, characterized in that, The end support mechanism is configured as an end support cylinder, whose cylinder shaft pushes the support end to abut against the end of the workpiece.

3. The automotive front beam assembly fixture according to claim 1, characterized in that, The side support mechanism includes a side support block, the support surface of which abuts against the side of the workpiece, and the top of the support surface of the side support block is provided with a guide slope.

4. The automotive front beam assembly fixture according to claim 3, characterized in that, The side support block located on one side of the workpiece is near the middle of the workpiece, and the side support block located on the other side of the workpiece is near the end of the workpiece.

5. The automotive front beam assembly tooling according to claim 1, characterized in that, The side support mechanism also includes a side support cylinder, whose cylinder shaft extends out to support the side of the workpiece.

6. The automotive front beam assembly fixture according to claim 1, characterized in that, The end clamping mechanism is configured as an end clamping cylinder. The base of the end clamping cylinder is supported along the bottom of the workpiece. A pressing block is installed on the cylinder shaft of the end clamping cylinder. The pressing block is located on the top of the workpiece and is used to press down on the workpiece.

7. The automotive front beam assembly tooling according to claim 1, characterized in that, The bottom support mechanism includes: A lever base for mounting on a clamp base plate; A lever block, which is hinged to the lever base and used to support the workpiece; A spring plunger is located at the bottom of the lever block and is used to provide initial support force for the workpiece; A support cylinder is located at the bottom of the lever block and is used to provide rigid support force for the workpiece.

8. The automotive front beam assembly tooling according to claim 7, characterized in that, The lever block has a connecting end and a supporting end at its two ends. The connecting end is hinged to the lever base, and the supporting end is used to support the workpiece.

9. The automotive front beam assembly tooling according to claim 7, characterized in that, The spring plunger is vertically positioned and located near or at the bottom of the support end of the lever block; The support cylinder is vertically positioned and located at the bottom of the middle section of the lever block.

10. The automotive front beam assembly tooling according to claim 7, characterized in that, The workpiece presses the lever block down until it abuts against the spring plunger, so that the spring plunger provides initial support force to the workpiece. The cylinder shaft of the support cylinder applies a rigid support force to the lever block, which is then transmitted to the support end to lock the workpiece position.

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