A quick positioning drilling fixture for automobile parts

Abstract

The utility model relates to the technical field of automobile parts processing, especially to a quick positioning drilling clamp for automobile parts, solveed the problem that the clamp can only realize drilling operation to the single position of the part after clamping and fixing the automobile part in the prior art, cannot complete multi-position continuous drilling under the same clamping state, leads to the need of frequently changing the clamp or readjusting the workpiece position, seriously influence the processing efficiency. The clamp comprises a collecting bin and a positioning frame arranged on the top of the collecting bin, a through groove and an inclined surface are arranged in the center of the positioning frame, two ends are connected with mounting plates, end clamping plates and horizontal pushing structures are arranged in the inside, and lower pressing rods and moving plates are arranged on the two sides of the top. The utility model can complete drilling processing to multiple positions of the workpiece in one clamping through the multi-point clamping structure design, significantly improves the processing efficiency and positioning accuracy, and has the advantages of stable structure, convenient operation, strong adaptability and the like.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a quick positioning drilling fixture for automotive parts. Background Technology

[0002] As fundamental units constituting the overall vehicle structure and enabling its functionality, automotive parts play a crucial role in the automobile manufacturing process. With the automotive industry's ever-increasing demands for precision, efficiency, and safety in parts manufacturing, every step of the processing requires highly precise operation, with drilling being particularly critical. In automotive parts production, drilling not only affects the connection strength and assembly accuracy between components but also directly impacts the safety and reliability of the entire vehicle. Therefore, to ensure the accuracy of drilling positions and processing efficiency, the rational design and selection of efficient positioning drilling fixtures have become important means of guaranteeing product quality.

[0003] Utility model patent CN220445724U discloses a drilling fixture for automotive parts, comprising: a base, a clamping mechanism slidably connected to the base, a driving mechanism for driving the clamping mechanism to slide on the base, and a locking mechanism for limiting the rotation of the driving mechanism. The clamping mechanism includes: a bracket, a first clamping block mounted on the bracket, and a second clamping block mounted on the base; a clamping frame slidably connected to the second clamping block, and a clamping plate mounted on the second clamping block; a threaded rod rotatably connected to the base; and a clamping frame threadedly connected to the threaded rod. Both the first and second clamping blocks have through holes, thereby enabling the clamping of workpieces of different specifications, preventing the drilling position from shifting, and improving the pass rate.

[0004] Although the patent has made some improvements in clamping adaptability and positioning accuracy, it still reveals obvious technical problems in actual use: after the fixture has clamped and fixed the car parts, it can only perform drilling operations on a single position of the parts and cannot perform continuous drilling in multiple positions under the same clamping state. This results in the need to frequently change the fixture or readjust the workpiece position, which seriously affects the processing efficiency.

[0005] In summary, existing drilling fixtures still have significant shortcomings in terms of multi-point machining capabilities, structural flexibility, and automation adaptability. There is an urgent need to develop a rapid positioning drilling fixture for automotive parts to overcome these problems, further improve the efficiency and accuracy of drilling, and meet the pressing needs of modern automobile manufacturing for a high-efficiency, high-quality production environment. Utility Model Content

[0006] The purpose of this invention is to provide a quick positioning drilling fixture for automotive parts, which solves the problem that in the prior art, after the fixture has finished clamping and fixing the automotive parts, it can only perform drilling operations on a single position of the parts, and cannot complete continuous drilling at multiple positions under the same clamping state, which leads to the need to frequently change the fixture or readjust the workpiece position, seriously affecting the processing efficiency.

[0007] To achieve the above objectives, this utility model provides a quick positioning drilling fixture for automotive parts, including a collection bin and a positioning frame disposed on the top of the collection bin. A through slot is provided at the top center of the positioning frame, and the top of both inner walls of the through slot are provided with inclined surfaces.

[0008] Both ends of the positioning frame are connected to mounting plates. Both sides of the inside of the through groove are provided with end clamping plates. The end clamping plates are connected to the adjacent mounting plates through a horizontal pushing structure. Both sides of the top of the positioning frame are provided with pressing rods. Both ends of the pressing rods are connected to moving plates that slide with the side wall of the positioning frame through a vertical sliding structure. One side of the moving plate is connected to a positioning structure that is detachably connected to the side wall of the positioning frame. The bottom of the moving plate on the other side is provided with a vertical pushing structure that cooperates with the adjacent vertical sliding structure.

[0009] The horizontal pushing structure includes an adjusting screw located on one side of the mounting plate, one end of which is threaded through the mounting plate and rotatably connected to the side wall of the end clamping plate.

[0010] The positioning structure includes a vertical plate fixedly connected to one side of the top of the movable plate and a positioning screw with one end threaded through the vertical plate. The side wall of the positioning frame is provided with several positioning holes that are adapted to the positioning screw.

[0011] The end clamping plate has a vertical rod fixedly connected to the top of one side. One end of the vertical rod slides through the mounting plate. The vertical sliding structure includes a round rod. One end of the round rod is connected to the end of the pressing rod, and the other end slides through the moving plate. The vertical pushing structure includes a lifting cylinder installed at the bottom of the moving plate. The output end of the lifting cylinder is connected to the end of the round rod.

[0012] The positioning frame has two support frames on both sides. One end of the support frame is bolted to the side wall of the positioning frame, and the other end is bolted to the top of the collection chamber.

[0013] The positioning frame has guide rods on both sides, and both ends of the guide rods are connected to the side walls of the adjacent support frame. The moving plate is slidably engaged with the adjacent guide rods, and the outer ring of the pressing rod is connected with a rubber sleeve.

[0014] This utility model discloses a quick-positioning drilling fixture for automotive parts. Through the combined design of through slots and inclined surfaces, it achieves automatic workpiece centering, improving clamping efficiency and positioning accuracy. The end clamping plate combined with the horizontal pushing structure enables adaptive clamping of parts of different sizes, enhancing the fixture's versatility. The synergistic effect of the pressure rod, moving plate, and vertical pushing structure allows the fixture to perform continuous drilling operations on multiple parts of the workpiece under the same clamping state, significantly improving processing efficiency and stability. In addition, by setting up a positioning structure and a collection bin, the fixture's ease of operation and on-site cleaning capability are further enhanced, meeting the actual needs of modern automotive manufacturing for a high-efficiency, high-quality, and automated production environment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the mounting plate and end clamping plate of an embodiment of the present utility model.

[0018] Figure 3 This is a structural schematic diagram of the inclined surface and positioning hole of an embodiment of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the support frame and guide rod according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the pressure rod and rubber sleeve in an embodiment of this utility model.

[0021] In the diagram: 1. Collection chamber; 2. Positioning frame; 3. Mounting plate; 4. End clamping plate; 5. Downward pressure rod; 6. Vertical rod; 7. Adjusting screw; 8. Inclined surface; 9. Positioning hole; 10. Through groove; 11. Support frame; 12. Guide rod; 13. Lifting cylinder; 14. Moving plate; 15. Rubber sleeve; 16. Positioning screw; 17. Vertical plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1

[0024] Please see Figure 1-5As shown, a quick positioning drilling fixture for automotive parts in this embodiment includes a collection chamber 1 and a positioning frame 2 disposed on the top of the collection chamber 1. A through groove 10 is provided at the top center of the positioning frame 2, and inclined surfaces 8 are provided on the top of the two inner walls of the through groove 10.

[0025] Mounting plates 3 are connected to both ends of the positioning frame 2. End clamping plates 4 are provided on both sides of the inside of the through groove 10. The end clamping plates 4 are connected to the adjacent mounting plates 3 through a horizontal pushing structure. Down pressure rods 5 are provided on both sides of the top of the positioning frame 2. The two ends of the down pressure rods 5 are connected to the moving plates 14 that slide with the side wall of the positioning frame 2 through a vertical sliding structure. The moving plate 14 on one side is connected to a positioning structure that is detachably connected to the side wall of the positioning frame 2. The bottom of the moving plate 14 on the other side is provided with a vertical pushing structure that cooperates with the adjacent vertical sliding structure.

[0026] In actual operation, the automotive part to be processed is first placed in the through groove 10 inside the positioning frame 2. At this time, both ends of the part are in contact with the inclined surface 8. Under the action of gravity and guidance, they automatically move towards the center, improving the initial positioning efficiency. Then, the horizontal pushing structure is activated to drive the end clamping plate 4 to move inward and clamp the two ends of the part. Next, the vertical pushing structure drives the moving plate 14 on one side to drive the lower pressure rod 5 to press down, so that the middle part of the workpiece is also firmly fixed, avoiding displacement due to vibration or uneven force during drilling. After multi-point clamping is completed, drilling can be performed on different positions of the part in the same clamping state without repeated disassembly and adjustment. After processing is completed, the driving structures are reversed to release the workpiece and remove it. At the same time, the generated debris can fall into the collection bin 1 below for centralized cleaning.

[0027] Example 2

[0028] Please see Figure 1-5 As shown in the figure, a quick-positioning drilling fixture for automotive parts in this embodiment includes an adjusting screw 7 disposed on one side of a mounting plate 3. One end of the adjusting screw 7 is threaded through the mounting plate 3 and rotatably connected to the side wall of the end clamping plate 4. Specifically, through the cooperative arrangement of the adjusting screw 7, the mounting plate 3, and the end clamping plate 4, when clamping automotive parts of different sizes, the operator can rotate the adjusting screw 7 to push the end clamping plate 4 to move horizontally, thereby achieving clamping or releasing of both ends of the workpiece. This structure has good adjustment accuracy and clamping stability, achieving the effect of improving the adaptability of the fixture and meeting the processing needs of parts of various specifications.

[0029] A vertical rod 6 is fixedly connected to the top of one side of the end clamping plate 4. One end of the vertical rod 6 slides through the mounting plate 3. The vertical sliding structure includes a round rod. One end of the round rod is connected to the end of the pressure rod 5, and the other end slides through the moving plate 14. The vertical pushing structure includes a lifting cylinder 13 installed at the bottom of the moving plate 14. The output end of the lifting cylinder 13 is connected to the end of the round rod. Specifically, through the coordinated arrangement of the vertical rod 6, the mounting plate 3, the round rod, the lifting cylinder 13, and the moving plate 14, the top of the end clamping plate 4 is provided with a vertical rod 6, which slides through the mounting plate 3 to guide the movement direction of the clamping plate. The vertical sliding structure is composed of a round rod, one end of which is connected to the pressure rod 5, and the other end passes through the moving plate 14. It is driven to move up and down by the lifting cylinder 13 at the bottom. Under the action of power, the pressure rod 5 is driven to press and fix the middle of the workpiece, thereby improving the clamping accuracy and automation and ensuring the clamping stability.

[0030] Example 3

[0031] Please see Figure 1-5 As shown in the figure, a quick positioning drilling fixture for automotive parts in this embodiment includes a positioning structure comprising a vertical plate 17 fixedly connected to one side of the top of a movable plate 14 and a positioning screw 16 with one end threaded through the vertical plate 17. The side wall of the positioning frame 2 is provided with several positioning holes 9 that are adapted to the positioning screw 16. Specifically, through the cooperative arrangement of the vertical plate 17, the positioning screw 16 and the positioning holes 9, after the pressure rod 5 applies pressure to the middle of the workpiece, the operator can tighten the positioning screw 16 to insert it into any one of the positioning holes 9 on the side wall of the positioning frame 2, thereby locking the movable plate 14 in the current position and preventing it from shifting due to vibration or external force, thus achieving the effect of enhancing clamping stability and ensuring drilling position accuracy.

[0032] Two support frames 11 are provided on both sides of the positioning frame 2. One end of the support frame 11 is bolted to the side wall of the positioning frame 2, and the other end is bolted to the top of the collection chamber 1. Specifically, through the coordinated arrangement of the support frame 11, the positioning frame 2, and the collection chamber 1, one end of the support frame 11 is bolted to the side wall of the positioning frame 2, and the other end is bolted to the top of the collection chamber 1, which is used to support the entire device and enhance the overall structural rigidity. It effectively prevents structural deformation or loosening during frequent clamping and drilling, thereby improving the load-bearing capacity and stability of the fixture.

[0033] Guide rods 12 are provided on both sides of the positioning frame 2. Both ends of the guide rods 12 are connected to the side walls of the adjacent support frame 11. The moving plate 14 slides with the adjacent guide rods 12. The outer ring of the pressing rod 5 is connected with a rubber sleeve 15. Specifically, through the cooperative arrangement of the guide rods 12, the moving plate 14 and the rubber sleeve 15, the guide rods 12 are set on both sides of the positioning frame 2 and connected to the support frame 11. The moving plate 14 slides on it to ensure the stability of the vertical movement of the pressing rod 5. At the same time, the rubber sleeve 15 wraps around the outer ring of the pressing rod 5, which can play a buffering and protective role when clamping the workpiece to prevent damage to the workpiece surface. This achieves the dual effect of improving the stability of the fixture operation and protecting the workpiece from scratches.

[0034] In the actual workflow, the operator first places the automotive part to be processed in the through groove 10, with both ends of the part contacting the inclined surface 8. Under the influence of gravity and guidance, the part automatically moves towards the center to complete the initial positioning. Then, the operator rotates the adjusting screw 7 to push the end clamping plate 4 inward along the vertical rod 6 to clamp both ends of the part. Next, the lifting cylinder 13 is activated, which drives the lower pressure rod 5 downward through the round rod to perform a secondary clamping of the middle of the workpiece. After clamping, the positioning screw 16 is tightened and inserted into the positioning hole 9 to lock the moving plate 14 to maintain the clamping state. At this time, drilling can be performed on different positions of the workpiece in the same clamping state without repeated disassembly and adjustment, which significantly improves processing efficiency. After processing, the operation is reversed to release the workpiece and remove it. The generated debris falls into the collection bin 1 below for centralized cleaning. The entire process achieves multi-point synchronous clamping of the workpiece, automatic centering, stable clamping, and precise positioning, and has good adaptability and automated control capabilities.

[0035] This utility model effectively solves the problem of low processing efficiency caused by existing drilling jigs being able to clamp only in a single position and requiring frequent jig changes or workpiece position readjustments. Specifically, the through groove 10 and the inclined surface 8 cooperate to achieve automatic centering, improving initial positioning efficiency; the adjusting screw 7 and the end clamping plate 4 improve the jig's adaptability to parts of different specifications; the vertical rod 6 enhances the guiding accuracy during clamping; the pressing rod 5, the moving plate 14, and the lifting cylinder 13 work together to enable the jig to firmly clamp the middle of the workpiece in the same clamping state, avoiding displacement problems during drilling; the positioning structure achieves locking in the clamping state through the upright plate 17, the positioning screw 16, and the positioning hole 9, further improving clamping stability; the support frame 11 enhances the rigidity of the whole machine and prevents structural deformation; the guide rod 12 and the moving plate 14 cooperate to ensure smooth pressing action, and the rubber sleeve 15 protects the workpiece surface from damage; the collection bin 1 facilitates centralized cleaning of drilling debris and improves the working environment.

[0036] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A quick-positioning drilling fixture for automotive parts, characterized in that, include: The collection chamber and the positioning frame set on the top of the collection chamber, wherein a through groove is provided at the top center of the positioning frame and the top of the two inner walls of the through groove are provided with inclined surfaces; Both ends of the positioning frame are connected to mounting plates. Both sides of the inside of the through groove are provided with end clamping plates. The end clamping plates are connected to the adjacent mounting plates through a horizontal pushing structure. Both sides of the top of the positioning frame are provided with pressing rods. Both ends of the pressing rods are connected to moving plates that slide with the side wall of the positioning frame through a vertical sliding structure. One side of the moving plate is connected to a positioning structure that is detachably connected to the side wall of the positioning frame. The bottom of the moving plate on the other side is provided with a vertical pushing structure that cooperates with the adjacent vertical sliding structure.

2. The quick positioning drilling fixture for automotive parts according to claim 1, characterized in that, The horizontal pushing structure includes an adjusting screw disposed on one side of the mounting plate, one end of which is threaded through the mounting plate and rotatably connected to the side wall of the end clamping plate.

3. The quick positioning drilling fixture for automotive parts according to claim 1, characterized in that, The positioning structure includes a vertical plate fixedly connected to one side of the top of the movable plate and a positioning screw with one end threaded through the vertical plate. The side wall of the positioning frame is provided with a number of positioning holes that are adapted to the positioning screw.

4. The quick positioning drilling fixture for automotive parts according to claim 2, characterized in that, A vertical rod is fixedly connected to the top of one side of the end clamping plate. One end of the vertical rod slides through the mounting plate. The vertical sliding structure includes a round rod. One end of the round rod is connected to the end of the pressing rod, and the other end slides through the moving plate. The vertical pushing structure includes a lifting cylinder installed at the bottom of the moving plate. The output end of the lifting cylinder is connected to the end of the round rod.

5. A quick-positioning drilling fixture for automotive parts according to claim 3, characterized in that, Two support frames are provided on both sides of the positioning frame. One end of the support frame is fixedly connected to the side wall of the positioning frame with bolts, and the other end is fixedly connected to the top of the collection chamber with bolts.

6. A quick-positioning drilling fixture for automotive parts according to claim 5, characterized in that, Guide rods are provided on both sides of the positioning frame, and both ends of the guide rods are connected to the side walls of the adjacent support frame. The moving plate is slidably engaged with the adjacent guide rods, and the outer ring of the pressing rod is connected with a rubber sleeve.

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