Paver pull arm positioning and manufacturing device

Abstract

The utility model provides a kind of paver traction arm positioning manufacturing device, including workbench, multiple workpiece support seat and multiple sets of locking parts, wherein workbench table is provided with multiple positioning clamping slots;Workpiece support seat is precisely embedded with positioning clamping slot, and adjustable positioning on the table surface of work surface is realized;Locking parts are correspondingly installed in each support seat work surface, and the traction arm to be processed is directly fixed by detachable structure, the device realizes accurate positioning of traction arm by the precise cooperation of the layout of positioning clamping slot and the connecting surface of support seat, improves processing efficiency by the quick clamping mechanism of locking parts, adjusts the design of support seat position to adapt to different specifications of traction arm processing requirements, effectively solves the technical problems of positioning error accumulation, low clamping efficiency, multi-specification adaptation difficulty and processing deformation control difficulty in traditional process, and provides key technical support for batch high-precision production of paver traction arm.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, and more specifically, to a high-efficiency positioning and manufacturing device for paver traction arms, which aims to solve the problems of multiple clamping errors and low processing efficiency in the production process of paver traction arms. Background Technology

[0002] A paver is a construction device mainly used for paving various materials on the base course of highways. It mainly consists of a traveling mechanism, a hydraulic mechanism, and a material conveying mechanism. The traction arm's function is to pull the screed forward during operation and adjust the paver's working angle via a leveling cylinder to ensure the paving and screing effect meets requirements during construction. The traction arm is a key component of the screed system. As a critical component, the production process of the paver traction arm faces three technical challenges: fragmented processing methods, uncontrollable quality fluctuations, and production efficiency bottlenecks. Existing processes only support segmented processing of single-specification traction arms, requiring multiple disassembly and reassembly of the workpiece to complete different parts of the processing. This results in the production process being divided into multiple independent units, and the accumulation of small offsets in the workpiece positioning reference during repeated clamping leads to dimensional and positional errors. This results in low processing efficiency, high operator workload, and problems such as unstable processing quality, dimensional deformation, and long production cycles. Utility Model Content

[0003] The main objective of this invention is to provide a paver traction arm positioning and manufacturing device, which at least solves the problems of unstable processing dimensions, deformation of shape and size, and low processing efficiency caused by changing the pressure plate during the production process of the paver traction arm in the prior art.

[0004] To achieve the above objectives, this utility model provides a paver traction arm manufacturing device and a paver traction arm positioning manufacturing device, characterized in that it includes: a workbench, on which multiple positioning slots are formed for workpiece support seats, each workpiece support seat having a connecting surface and a working surface, the working surfaces of the multiple workpiece support seats being detachably and adjustablely disposed within the positioning slots to adjust the relative positions of the multiple workpiece support seats on the workbench surface; and locking components, in multiple sets, each set of locking components corresponding to and detachably mounted on the working surfaces of the multiple workpiece support seats; wherein the middle part of the traction arm to be processed is disposed on the first workpiece support seat, and the two ends of the traction arm to be processed are correspondingly disposed on the second workpiece support seat and the third workpiece support seat.

[0005] Furthermore, the workbench has a rectangular structure, and the multiple positioning slots include: a first positioning slot, which extends along the center line of the length direction of the workbench surface; and multiple second positioning slots, which are located on both sides of the first positioning slot and are evenly spaced from and parallel to the first positioning slot.

[0006] Furthermore, the first positioning slot is divided into two sections, and a central clearance hole is provided at the center of the workbench surface, the central clearance hole being located between the two sections of the first positioning slot.

[0007] Furthermore, there are three workpiece support seats, each comprising: a first workpiece support seat disposed at the center of the worktable surface and fixedly connected to the corresponding positioning slot; a second workpiece support seat disposed at one edge of the worktable surface and fixedly connected to the corresponding positioning slot; and a third workpiece support seat disposed at the other edge of the worktable surface and fixedly connected to the corresponding positioning slot. The traction arm to be processed is mounted on the working surfaces of the multiple workpiece support seats and locked in place by multiple sets of locking components.

[0008] Further, each workpiece support includes: a base, the lower surface of which forms a connecting surface and is fixedly connected to the positioning slot; so that the support is precisely fixed in the positioning slot; a working surface and a locking component; the positioning slot is connected to the connecting surface so that the supported body is precisely fixed in the positioning slot; a vertical support plate, which is vertically disposed on the base, and the upper surface of the vertical support plate forms a working surface; a pressure plate, which is detachably disposed above the working surface; wherein the traction arm to be processed is mounted on the working surface formed by the vertical support plate; the pressure plate is used to press the traction arm in the vertical direction.

[0009] Furthermore, the plurality of locking components includes: a first locking component disposed on the second workpiece support, the first locking component being used to fix the traction arm in both the vertical and horizontal directions; and a second locking component disposed on the third workpiece support, used to fix the traction arm in the vertical direction.

[0010] Further, the first locking component includes: a first vertical positioning stud, which is disposed on the side of the working surface of the second workpiece support for fixing the traction arm in a vertical direction; a horizontal fixing stud, which is disposed on the side of the second workpiece support for fixing the traction arm in a horizontal direction; and a first auxiliary support stud, which is disposed on the rear side of the main body of the second workpiece support for assisting the first vertical positioning stud and the horizontal fixing stud in fixing the traction arm.

[0011] Further, the second locking component comprises: a second vertical positioning stud, which is disposed on the side of the third workpiece support and is used to position the traction arm in a vertical direction; and a second auxiliary support stud, which is disposed in front of the third workpiece support and is used to assist the second vertical positioning stud in fixing the traction arm.

[0012] This utility model provides a paver traction arm positioning and manufacturing device, including a worktable, multiple workpiece support seats, and multiple sets of locking components. The worktable surface has multiple positioning slots; the workpiece support seats are precisely fitted into the positioning slots, achieving adjustable positioning of the working surface on the worktable; the locking components are correspondingly installed on the working surfaces of each support seat, directly fixing the traction arm to be processed through a detachable structure. This device achieves precise positioning of the traction arm through the precise cooperation between the positioning slot layout and the support seat connection surfaces, improves processing efficiency through the quick clamping mechanism of the locking components, and adapts to the processing needs of traction arms of different specifications through the adjustable design of the support seat positions. It effectively solves the technical problems of accumulated positioning errors, low clamping efficiency, difficulty in adapting to multiple specifications, and difficulty in controlling processing deformation in traditional processes, providing key technical support for the mass production of high-precision traction arms for pavers. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a paver traction arm positioning device, which is an optional embodiment of this utility model. Figure 2 This is a schematic diagram of the second workpiece support seat of a paver traction arm positioning device, which is an optional embodiment of this utility model. Figure 3 This is a schematic diagram of the third workpiece support seat of a paver traction arm positioning device, which is an optional embodiment of this utility model. The above figures include the following reference numerals: 10. Worktable; 11. Positioning slot; 111. First positioning slot; 112. Second positioning slot; 12. Intermediate clearance hole; 20. Workpiece support; 21. First workpiece support; 22. Second workpiece support; 23. Third workpiece support; 24. Base; 25. Vertical support plate; 26. Pressure plate; 30. Locking component; 31. First locking component; 311. First vertical positioning stud; 312. Horizontal fixing stud; 313. First auxiliary support stud; 32. Second locking component; 321. Second vertical positioning stud; 322. Second auxiliary support stud; 40. Traction arm. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] According to this utility model, a paver traction arm positioning device is provided, such as... Figure 1 As shown, the system includes: a worktable 10, positioning slots 11, workpiece support seats 20, locking components 30, and a traction arm 40. Multiple positioning slots 11 are provided on the surface of the worktable 10. Multiple workpiece support seats 20 are provided, each having a connecting surface and a working surface. The working surfaces of the multiple workpiece support seats 20 are detachably and adjustablely disposed within the positioning slots 11 to adjust their relative positions on the worktable 10 surface. Multiple sets of locking components 30 are provided, each corresponding to and detachably mounted on the working surfaces of the multiple workpiece support seats 20. The traction arm 40 to be processed is mounted on the working surfaces of the multiple workpiece support seats 20 and locked by the multiple sets of locking components 30.

[0016] In practical implementation, the workbench 10 of the paving machine traction arm positioning device adopts a rectangular structure design. Its positioning slots 11 achieve three-dimensional positioning and dynamic adaptation through precise layout. The first positioning slot 111 extends along the centerline of the table length direction, serving as the main reference for central support. The two-section design, combined with the intermediate clearance hole 12, ensures safe tool feeding. The second positioning slots 112, evenly spaced on both sides, are arranged parallel to the first positioning slot 11, forming a closed-loop positioning system. This supports bidirectional horizontal adjustment of the support base to adapt to multiple specifications of traction arms 40, and the T-slot cross-section enhances the stability of positioning accuracy. This solves the problems of positioning error accumulation, multi-specification adaptation, and processing stability.

[0017] In specific implementation, the two sections of the first positioning slot 111 are symmetrically distributed along the center line of the worktable length direction, and are physically separated by the intermediate clearance hole 12. The intermediate clearance hole 12 is opened at the geometric center of the worktable 10 surface, and its diameter design meets the safety distance requirements of the tool, ensuring that the tool can feed without interference when the workpiece support is located in the machining center area. Through this spatial layout design, the intermediate clearance hole 12 and the first positioning slot 111 form a closed-loop positioning system, which not only ensures the safe feed space of the spindle tool during the machining process, but also suppresses the transmission of machining vibration through spatial layout optimization, and improves the positioning accuracy and machining stability of the traction arm.

[0018] In specific implementation, there are three workpiece support seats 20, forming a triangular positioning layout with the center and both ends: the first workpiece support seat 21 is positioned at the center of the worktable 10 surface, and achieves central support through the precise fitting of the connecting surface and the positioning slot 11. Its connecting surface is tightly fixed to the positioning slot by protrusions forward, and its working surface is designed to adapt to the curved contour of the middle of the traction arm to ensure complete contact surface to distribute pressure; the second workpiece support seat 22 and the third workpiece support seat 23 are symmetrically distributed at both ends of the worktable 10, wherein the second workpiece support seat is as follows: Figure 2 As shown, the third workpiece support is as follows: Figure 3 As shown, the second workpiece support 22 and the third workpiece support 23 are tightly fixed to the positioning slot through protrusions. The bidirectional adjustment function of the positioning slot 11 achieves precise horizontal positioning. The second workpiece support 22 and the third workpiece support 23 form surface contact support with both ends of the traction arm 40, effectively suppressing lateral movement during processing. This three-point layout, based on the principle of mechanical balance, enables the traction arm to form a stable triangular support structure during processing, significantly improving vibration resistance compared to traditional single-point or double-point support modes. The first workpiece support 21 bears the main vertical load, while the second workpiece support 22 and the third workpiece support 23 at both ends form a closed-loop positioning system through horizontal locking force, ensuring the positional stability of the traction arm 40 in the machine tool coordinate system. This design, through the adjustable characteristics of the positioning slot, enables rapid adaptation of traction arms 40 of different specifications without repeated adjustments to clamping parameters, directly improving processing preparation efficiency. Simultaneously, the triangular positioning layout ensures uniform force distribution on the traction arm, avoiding deformation errors caused by localized stress concentration and guaranteeing consistent processing accuracy.

[0019] In specific implementation, each workpiece support 20 consists of a base 24, a vertical support plate 25, and a pressure plate 26. The lower surface of the base 24 forms a precision connection surface, using a raised structure to form a tenon joint with the T-slot cross-section of the positioning slot 11. This seamless fitting achieves stable installation, eliminating assembly gaps and improving positioning accuracy. The vertical support plate 25 is vertically fixed above the base 24, with its upper surface serving as the working surface. It directly supports the traction arm 40 and provides a vertical positioning reference, ensuring strict perpendicularity to the worktable 10 surface to suppress machining vibration. The pressure plate 26 is detachably mounted above the working surface via bolts, uniformly pressing the traction arm vertically to enhance clamping stability. This fitting structure effectively disperses machining vibration energy and reduces the impact of thermal deformation. Combined with the dynamic chip removal mechanism of the chip removal hole group, it improves positioning accuracy and enhances machining stability, solving the problems of accumulated positioning errors and multi-specification compatibility.

[0020] In specific implementation, the multiple sets of locking components 30 include a first locking component 31 and a second locking component 32; for example Figure 2 As shown, the first locking component is disposed on the second workpiece support 22, and a three-dimensional positioning system is formed by multiple parts to lock the traction arm 40 and suppress processing vibration; as Figure 3 As shown, the second locking component 32 is disposed on the third workpiece support 23, fixing the traction arm 40 vertically. It works in conjunction with the first locking component 31 to form a closed-loop positioning system, creating a double rigid constraint in the vertical direction to improve vibration resistance. Through the coordinated fixing logic in the vertical and horizontal directions, the two components effectively disperse processing stress and reduce deformation errors. Combined with the precise fitting structure of the positioning slot, this achieves accurate positioning of the traction arm in the machine tool coordinate system and enhances processing stability.

[0021] In specific implementation, the first locking component 31 includes a first vertical positioning stud 311, a horizontal fixing stud 312, and a first auxiliary support stud 313. The first vertical positioning stud 311 is arranged on the side of the working surface of the second workpiece support 22 to achieve precise vertical positioning of the traction arm 40. The horizontal fixing stud 312 is arranged on the side of the second workpiece support to constrain the horizontal displacement of the traction arm 40. The first auxiliary support stud 313 is located on the rear side of the main body of the second workpiece support 22 and enhances the stability of Y-axis anti-movement through surface contact. The three components work together to construct a three-dimensional positioning frame to suppress processing vibration. The second locking component 32 includes a second vertical positioning stud 321 and a newly added second auxiliary support stud 322. The second vertical positioning stud 321 is disposed on the side of the third workpiece support 23, constraining the traction arm 40 in the vertical direction. The second auxiliary support stud 322 is disposed in front of the third workpiece support 23, forming a cooperative positioning mechanism with the second vertical positioning stud 321, providing additional constraint force in the Y-axis direction to suppress movement. Together, they constitute a closed-loop positioning system. Each locking component 30, through three-dimensional mechanical balance design, forms a stable structure with multi-directional stiffness matching under the adjustable characteristics of the positioning slot, effectively dispersing pressure, suppressing lateral movement and local stress concentration, reducing the risk of form and position deviation, and ensuring the consistency of the traction arm's machining accuracy.

[0022] In specific implementation, when processing the traction arm 40 of a certain type of paver, first adjust the position of the workpiece support seat 20 on the workbench; fix the first workpiece support seat 21 in the center positioning slot of the workbench 10 to ensure that its central curved surface contour is completely in contact with the working surface of the support seat; adjust the second workpiece support seat 22 and the third workpiece support seat 23 along the positioning slots 11 on both sides to the corresponding size positions at both ends of the traction arm 40, and achieve precise positioning by the base protrusion engaging with the T-slot. Next, the middle part of the traction arm is placed on the first workpiece support 21, and the two ends are placed on the second workpiece support 22 and the third workpiece support 23, and vertically pressed with the pressure plate 26. Then, the locking component 30 is installed. The first vertical positioning stud 311, the horizontal fixing stud 312 and the first auxiliary support stud 313 are sequentially assembled on the side of the second support 22 to achieve vertical positioning, horizontal constraint and enhanced anti-movement. The second vertical positioning stud 321 and the second auxiliary support stud 322 are assembled on the side of the third support to form double constraint and additional support. During the processing, the tool feeds without interference through the intermediate clearance hole. The three-point triangular positioning layout effectively disperses vibration energy, greatly reduces deformation error, and significantly improves the quality stability and processing efficiency of mass production.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A paver traction arm positioning device, characterized in that, include: The workbench (10) has multiple positioning slots (11) on its surface. Workpiece support base (20), there are multiple workpiece support bases (20), each workpiece support base (20) has a connecting surface and a working surface, and the working surfaces of the multiple workpiece support bases (20) are detachably and adjustablely arranged in the positioning slot (11) to adjust the relative position of the multiple workpiece support bases (20) on the worktable (10). Locking components (30), the locking components (30) are in multiple sets, and the multiple sets of locking components (30) are corresponding one to one and detachably installed on the working surface of multiple workpiece support seats (20); The traction arm (40) to be processed is installed on the working surface of multiple workpiece support seats (20) and locked by multiple sets of locking components (30).

2. The paver traction arm positioning device according to claim 1, characterized in that, The worktable (10) has a rectangular structure, and the multiple positioning slots (11) include: The first positioning slot (111) extends along the center line of the length direction of the workbench (10); Multiple second positioning slots (112) are located on both sides of the first positioning slot (111) and are evenly spaced and parallel to each other.

3. The paver traction arm positioning device according to claim 2, characterized in that, The first positioning slot (111) is divided into two sections. The worktable (10) has a central clearance hole (12) at the center of its surface. The central clearance hole (12) is located between the two sections of the first positioning slot (111).

4. The paver traction arm positioning device according to claim 1, characterized in that, There are three workpiece support seats (20), and the three workpiece support seats (20) include: The first workpiece support (21) is located at the center of the workbench (10) and is fixedly connected to the corresponding positioning slot (11). The second workpiece support (22) is disposed at one end of the edge of the workbench (10) and is fixedly connected to the corresponding positioning slot (11); The third workpiece support (23) is disposed at the other end of the edge of the workbench (10) and is fixedly connected to the corresponding positioning slot (11). The middle part of the traction arm (40) to be processed is set on the first workpiece support seat (21), and the two ends of the traction arm (40) to be processed are respectively set on the second workpiece support seat (22) and the third workpiece support seat (23), and are locked by the multiple sets of locking components (30).

5. The paver traction arm positioning device according to claim 1, characterized in that, Each of the workpiece supports (20) includes: The base (24) has a connecting surface formed on its lower surface and is fixedly connected to the positioning slot (11) so that the workpiece support (20) is precisely fixed in the positioning slot (11); A vertical support plate (25) is vertically mounted on the base (24), and the upper surface of the vertical support plate (25) forms a working surface; Pressure plate (26), said pressure plate (26) is detachably disposed above the working surface; The traction arm (40) to be processed is mounted on the working surface formed by the vertical support plate (25); the pressure plate (26) is used to press the traction arm (40) in the vertical direction.

6. The paver traction arm positioning device according to claim 4, characterized in that, The multiple sets of locking components (30) include: The first locking component (31) is disposed on the second workpiece support (22) and is used to fix the traction arm (40) in the vertical and horizontal directions respectively. The second locking component (32) is disposed on the third workpiece support (23) and is used to fix the traction arm (40) in the vertical direction.

7. The paver traction arm positioning device according to claim 6, characterized in that, The first locking component (31) includes: The first vertical positioning stud (311) is disposed on the side of the working surface of the second workpiece support (22) and is used to fix the traction arm (40) in the vertical direction. A horizontal fixing stud (312) is provided on the side of the second workpiece support (22) for fixing the traction arm (40) in the horizontal direction. The first auxiliary support stud (313) is located on the rear side of the second workpiece support seat (22) and is used to assist the first vertical positioning stud (311) and the horizontal fixing stud (312) in fixing the traction arm (40).

8. The paver traction arm positioning device according to claim 6, characterized in that, The second locking component (32) includes: The second vertical positioning stud (321) is disposed on the side of the third workpiece support (23) and is used to position the traction arm (40) in the vertical direction. The second auxiliary support stud (322) is located in front of the third workpiece support (23) and is used to assist the second vertical positioning stud (321) in fixing the traction arm (40).

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