Drilling jig device with adjustable drilling position
By designing a drilling jig device with adjustable drilling position and adopting a limit and transmission wheel adjustment mechanism, synchronous processing of multiple holes is achieved, which solves the problem of poor versatility of existing drilling jig devices in multi-variety, small-batch production, improves processing efficiency and accuracy, and reduces costs.
Patent Information
- Application Number
- CN202522529363.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-11-28
AI Technical Summary
Existing drilling jig devices have poor versatility in multi-variety, small-batch production, are cumbersome to operate, have large cumulative errors, and are complex and costly, making it difficult to meet the needs of modern flexible production.
A drilling jig device with adjustable drilling position was designed. It adopts a limit mechanism, a transmission wheel adjustment mechanism and a servo motor adjustment plate. The active wheel drives the driven wheel and the drill rod to rotate, realizing synchronous processing of multiple holes. The clamping mechanism and the pressing mechanism ensure the stability and accuracy of the workpiece.
It improves processing efficiency and equipment versatility, ensures precise consistency of hole spacing, reduces production costs, eliminates transmission instability and vibration problems, and enhances drilling accuracy and safety.
Smart Images
Figure CN223733916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling jig technology, specifically a drilling jig device with adjustable drilling position. Background Technology
[0002] In the field of machining, especially in drilling disc and plate parts such as flanges and end caps with evenly distributed holes, drill jigs are an indispensable fixture used to guide the drill bit, ensure hole position accuracy, and improve machining efficiency. For workpieces that need to be machined with multiple holes of the same diameter and equally distributed at angles on the same circumference, traditional solutions are mainly divided into two categories: one is to use fixed drill jigs, and the other is to use adjustable devices such as indexing plates.
[0003] Fixed drill jigs are designed specifically for certain products, and the position of their guide sleeves is fixed and cannot be adjusted. Although these drill jigs have high precision and good rigidity, their fatal flaw is their extremely poor versatility. For each workpiece with a different distribution of circle diameter or a different number of holes, a new set of dedicated drill jigs needs to be designed and manufactured, resulting in high production costs and long production cycles. They are suitable for mass production of single varieties, but cannot meet the needs of modern flexible production of multiple varieties and small batches.
[0004] While indexing tables or coordinate drilling jigs can achieve machining at different positions through rotation or movement, improving flexibility to some extent, they typically have the following problems: 1. Cumbersome operation: After machining each hole, indexing or repositioning and locking are required, resulting in low automation and low machining efficiency; 2. Cumulative error: Multiple indexing or movement may generate cumulative errors, affecting the relative positional accuracy between multiple holes; 3. Complex structure: Precision indexing devices or coordinate movement platforms are expensive, making the entire fixture system large and costly. Therefore, we propose a drilling jig device with adjustable drilling position. Utility Model Content
[0005] The purpose of this invention is to provide a drill jig device with adjustable drilling position to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a drilling jig device with adjustable drilling position, including a limiting mechanism, and a sleeve is mounted on the upper end of the limiting mechanism. Four equally angularly distributed drilling mechanisms and a transmission wheel adjustment mechanism are fixedly connected to the top of the inner cavity of the sleeve. A transmission wheel is mounted on the lower end of the transmission wheel adjustment mechanism. Each drilling mechanism includes a driven shaft and a driven wheel. The driven shaft is movably mounted inside the sleeve, and the driven wheel is fixedly installed on the surface of the driven shaft. A drill rod is mounted on the lower end of the driven shaft. A driving wheel is rotatably mounted inside the sleeve, and the transmission wheel meshes with both the driving wheel and the driven wheel. An adjustment mechanism is mounted on the lower end of the inner cavity of the sleeve, and the adjustment mechanism includes a servo motor and an adjustment plate. The servo motor is fixedly installed at the bottom of the inner cavity of the sleeve. The output shaft of the servo motor is fixedly connected to the adjustment plate, and an arc-shaped groove is formed on the inner surface of the adjustment plate. One opening of the arc-shaped groove is close to the center of the adjustment plate, and the other opening is close to the outer ring of the adjustment plate. The driven shaft is inserted into the arc-shaped groove.
[0007] Preferably, the inner cavity of the sleeve is fixedly connected with four sets of baffles distributed at equal angles on the upper and lower sides of the adjusting plate.
[0008] Preferably, the drilling mechanism further includes a slide block, which is fixedly connected to the top of the inner cavity of the sleeve, and the top of the driven shaft is slidably connected to the inner side of the slide block. A limiting groove is formed at the bottom of the sleeve, and the lower end of the driven shaft passes through the limiting groove.
[0009] Preferably, the transmission wheel adjustment mechanism includes a fixed plate, which is fixedly connected to the top of the inner cavity of the sleeve. A frame is fixedly connected to the surface of the fixed plate, and a sleeve is fitted onto the surface of the frame. A third spring is fixedly connected to the inner surface of the sleeve, and the end of the third spring is fixedly connected to the surface of the fixed plate. A fixed shaft is fixedly connected to the bottom of the sleeve, and a transmission wheel is rotatably mounted on the bottom of the fixed shaft.
[0010] Preferably, the limiting mechanism includes a connecting rod, the inner side of which is fixedly connected to the surface of the sleeve, and a second limiting rod is slidably connected to both ends of the inner surface of the connecting rod, and a base is fixedly connected to the bottom of the second limiting rod.
[0011] Preferably, it further includes a pressing mechanism, which includes a second spring located outside the second limiting rod and fixedly connected to the bottom of the connecting rod. A pressure plate is fixedly connected to the bottom of the second spring, and both ends of the pressure plate are sleeved on the second limiting rod. The inner surface of the pressure plate is provided with an elongated groove corresponding to the limiting groove.
[0012] Preferably, both ends of the top of the base are provided with clamping mechanisms. The clamping mechanism includes a connecting block. A V-shaped clamping plate is movably connected to the inner side of the connecting block through a first spring. A first limiting rod is slidably connected to the inner surface of the connecting block. The first limiting rod is located inside the first spring and its end is fixedly connected to the outer side of the V-shaped clamping plate. The inner side of the V-shaped clamping plate has a stepped structure.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention enables a single power source to simultaneously drive multiple drilling operations by one driving wheel via a transmission wheel, which in turn drives four driven wheels, a driven shaft, and a drill rod. This significantly improves processing efficiency. Furthermore, the position of the driven wheels and drill rod can be adjusted via an adjustment mechanism, ensuring precise consistency in the spacing between multiple holes. It also adapts to drilling on workpieces with different hole spacing requirements, achieving "one mold for multiple uses." This greatly enhances the versatility and economy of the equipment, avoiding the cost of manufacturing expensive fixed drill jigs for different product specifications.
[0015] The transmission wheel adjustment mechanism, drilling mechanism, transmission wheel and drive wheel are highly integrated inside the sleeve, which has high space utilization and good overall rigidity. The third spring in the transmission wheel adjustment mechanism continuously provides clamping force to the transmission wheel, ensuring that it always maintains stable engagement with the drive wheel and driven wheel, effectively eliminating the transmission instability or vibration problems that may be caused by gear meshing clearance, and ensuring the accuracy and smoothness of drilling.
[0016] The clamping mechanism uses a V-shaped clamping plate in conjunction with a first spring to achieve automatic centering and clamping, which can effectively fix workpieces of different sizes. The stepped structure enhances clamping stability and also prevents the drill rod from contacting the base and causing damage to the base. At the same time, the pressing mechanism provides downward pressure through a second spring and a pressure plate, which can effectively prevent the workpiece from tilting and vibrating during drilling, further ensuring the quality and safety of drilling. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective.
[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective.
[0019] Figure 3 This is a three-dimensional structural diagram of the present invention from a third-view perspective;
[0020] Figure 4 This is a schematic diagram of the internal structure of the sleeve of this utility model. Figure 1 ;
[0021] Figure 5This is a schematic diagram of the internal structure of the sleeve of this utility model. Figure 2 .
[0022] In the diagram: 1. Drill rod; 2. Limiting mechanism; 21. Base; 22. Connecting rod; 23. Second limiting rod; 3. Clamping mechanism; 3. First spring; 31. V-shaped clamp; 32. Connecting block; 33. First limiting rod; 34. Transmission wheel; 4. Sleeve; 5. Limiting groove; 51. Adjusting mechanism; 6. Arc groove; 61. Servo motor; 62. Adjusting plate; 63. Baffle; 64. Drilling mechanism; 7. Driven shaft; 71. Slide; 72. Driven wheel; 73. Transmission wheel adjusting mechanism; 8. Fixed plate; 81. Frame; 82. Sleeve; 83. Third spring; 84. Fixed shaft; 85. Pressing mechanism; 9. Second spring; 91. Pressure plate; 92. Long groove; 93. Drive wheel; 10. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 A drill jig device with adjustable drilling position includes a limiting mechanism 2, and a sleeve 5 is mounted on the upper end of the limiting mechanism 2. Four equally angled drilling mechanisms 7 and a transmission wheel adjustment mechanism 8 are fixedly connected to the top of the inner cavity of the sleeve 5. A transmission wheel 4 is mounted on the lower end of the transmission wheel adjustment mechanism 8. Each drilling mechanism 7 includes a driven shaft 71 and a driven wheel 73. The driven shaft 71 is movably mounted inside the sleeve 5, and the driven wheel 73 is fixedly mounted on the surface of the driven shaft 71. A drill rod 1 is mounted on the lower end of the driven shaft 71, and a driving wheel is rotatably mounted inside the sleeve 5. 10, and the transmission wheel 4 meshes with the driving wheel 10 and the driven wheel 73 respectively. The lower end of the inner cavity of the sleeve 5 is equipped with an adjustment mechanism 6, and the adjustment mechanism 6 includes a servo motor 62 and an adjustment plate 63. The servo motor 62 is fixedly installed at the bottom of the inner cavity of the sleeve 5. The output shaft of the servo motor 62 is fixedly connected to the adjustment plate 63. An arc-shaped groove 61 is opened on the inner surface of the adjustment plate 63. One groove of the arc-shaped groove 61 is close to the center of the adjustment plate 63, and the other groove is close to the outer ring of the adjustment plate 63. The driven shaft 71 is inserted into the arc-shaped groove 61.
[0025] The sleeve 5 is installed on the drilling machine, and the top of the drive wheel 10 is connected to the drilling machine spindle. When the drilling machine spindle rotates, it will drive the drive wheel 10 to rotate, and with the cooperation of the transmission wheel 4 and the driven shaft 71, it can drive the driven wheel 73 to rotate, so that the four drill rods 1 can drill the workpiece synchronously. When drilling holes at different positions on the workpiece surface or drilling workpieces of different sizes, the servo motor 62 is controlled to rotate, which in turn drives the adjustment plate 63 to rotate. At this time, under the restriction of the arc groove 61 and the movable installation of the driven shaft 71, the driven shaft 71 will be driven to move radially, thereby adjusting the position of the drill rod 1, and the synchronous adjustment of multiple drill rods 1 can be completed at the same time.
[0026] The inner cavity of the sleeve 5 is fixedly connected with four sets of baffles 64 distributed at equal angles on the upper and lower sides of the adjusting plate 63. The baffles 64 can improve the stability of the adjusting plate 63 when it rotates.
[0027] The drilling mechanism 7 also includes a slide 72, which is fixedly connected to the top of the inner cavity of the sleeve 5. The top of the driven shaft 71 is slidably connected to the inner side of the slide 72. A limiting groove 51 is provided at the bottom of the sleeve 5, and the lower end of the driven shaft 71 passes through the limiting groove 51. The positions of the slide 72 and the limiting groove 51 are corresponding. When the adjusting plate 63 rotates, the driven shaft 71 can move in a straight line under the restriction of the slide 72 and the limiting groove 51.
[0028] The transmission wheel adjustment mechanism 8 includes a fixed plate 81, which is fixedly connected to the top of the inner cavity of the sleeve 5. A frame 82 is fixedly connected to the surface of the fixed plate 81, and a sleeve 83 is fitted onto the surface of the frame 82. A third spring 84 is fixedly connected to the inner surface of the sleeve 83, and the end of the third spring 84 is fixedly connected to the surface of the fixed plate 81. A fixed shaft 85 is fixedly connected to the bottom of the sleeve 83, and a transmission wheel 4 is rotatably mounted on the bottom of the fixed shaft 85. The third spring 84 is always in a stretched state, so that the transmission wheel 4 can always maintain stable meshing with the driving wheel 10 and the driven wheel 73 with the cooperation of the frame 82 and the sleeve 83. This effectively eliminates the transmission instability or vibration problems that may be caused by gear meshing clearance, and ensures the accuracy and smoothness of drilling.
[0029] When the driven wheel 73 moves to the closest and furthest positions from the driving wheel 10, the transmission wheel adjustment mechanism 8 ensures that the transmission wheel 4 is always located on the same side of the driving wheel 10 and the driven wheel 73. This is to maintain engagement and provide transmission, while also limiting the range of movement of the driven wheel 73 to prevent it from moving too far and causing the transmission wheel 4 to move to the middle or the other side of the driven wheel 73 and the driving wheel 10, thus preventing engagement from being maintained when the driven wheel 73 moves back.
[0030] The limiting mechanism 2 includes a connecting rod 22, the inner side of which is fixedly connected to the surface of the sleeve 5. Both ends of the inner surface of the connecting rod 22 are slidably connected to a second limiting rod 23, and the bottom of the second limiting rod 23 is fixedly connected to a base 21. The second limiting rod 23 can play an auxiliary limiting and guiding role for the sleeve 5.
[0031] It also includes a pressing mechanism 9, which includes a second spring 91. The second spring 91 is located outside the second limiting rod 23 and is fixedly connected to the bottom of the connecting rod 22. A pressure plate 92 is fixedly connected to the bottom of the second spring 91, and both ends of the pressure plate 92 are sleeved on the second limiting rod 23. The inner surface of the pressure plate 92 is provided with a long groove 93 corresponding to the limiting groove 51. The pressure plate 92 provides downward pressure when the drill press descends, which can effectively prevent the workpiece from tilting and vibrating during drilling, further ensuring the quality and safety of drilling. The purpose of the second spring 91 is to ensure that after the pressure plate 92 is pressed on the workpiece and fixed in position, it does not affect the continued downward movement of the sleeve 5 to complete the drilling work. The long groove 93 is equivalent to a drill sleeve, which is used to determine the position of the hole to be processed on the workpiece and guide the drill rod 1 to be processed. It is designed to be in the shape of a long hole so that the drill rod 1 can pass through after its position is adjusted.
[0032] Both ends of the top of the base 21 are equipped with clamping mechanisms 3. The clamping mechanism 3 includes a connecting block 33. The inner side of the connecting block 33 is movably connected to a V-shaped clamping plate 32 through a first spring 31. The inner surface of the connecting block 33 is slidably connected to a first limiting rod 34. The first limiting rod 34 is located inside the first spring 31 and its end is fixedly connected to the outer side of the V-shaped clamping plate 32. The inner side of the V-shaped clamping plate 32 has a stepped structure, which can effectively fix workpieces of different sizes. While enhancing the clamping stability, it also avoids the phenomenon of damage to the base 21 caused by contact between the drill rod 1 and the base 21. The first spring 31 is always in a compressed state and can generate sufficient spring force to clamp the workpiece in the middle position on the base 21. At the same time, for workpieces with heavier weight, the first spring 31 and the first limiting rod 34 can be replaced with electric push rods, hydraulic cylinders or pneumatic cylinders to ensure the accuracy of the workpiece position.
[0033] The drilling operation steps in this application are as follows:
[0034] First, place the circular workpiece to be processed on the step inside the V-shaped clamp 32. With the cooperation of the first spring 31, circular workpieces of different sizes can be effectively fixed.
[0035] The drilling machine moves the sleeve 5 downwards. The pressure plate 92 provides downward pressure when the drilling machine descends, which can effectively prevent the workpiece from tilting and vibrating during drilling, further ensuring the quality and safety of drilling. The purpose of the second spring 91 is to ensure that after the pressure plate 92 is fixed on the workpiece, it does not affect the continued downward movement of the sleeve 5 to complete the drilling work.
[0036] The drilling machine's operation control system rotates its spindle, which drives the drive wheel 10 to rotate. With the cooperation of the transmission wheel 4 and the driven shaft 71, it can drive the driven wheel 73 to rotate, thereby enabling the four drill rods 1 to simultaneously drill the workpiece.
[0037] The specific process for drilling holes in circular workpieces of different sizes is as follows:
[0038] When it is necessary to move the drill rod 1 outward, the servo motor 62 is controlled to drive the adjusting plate 63 to rotate smoothly. At this time, the arc groove 61 generates an outward thrust on the driven shaft 71, and under the guidance of the slide 72 and the limiting groove 51, the driven shaft 71 moves radially to complete the adjustment of the position of the drill rod 1. At the same time, the driven wheel 73 moves outward, and the transmission wheel 4 moves inward under the elastic force of the third spring 84, always maintaining engagement with the driving wheel 10 and the driven wheel 73, maintaining the transmission of the driven wheel 73. After the drill rod 1 reaches the set position, the servo motor 62 is stopped, and then the drilling operation can be performed.
[0039] When it is necessary to move the drill rod 1 inward, similar to the above process, first control the adjusting plate 63 to rotate in the opposite direction. At this time, the arc groove 61 generates an inward pulling force on the driven shaft 71, and under the guidance of the slide 72 and the limiting groove 51, the driven shaft 71 moves radially to complete the adjustment of the position of the drill rod 1. At the same time, the driven wheel 73 moves inward, and the transmission wheel 4 moves outward under the elastic force of the third spring 84, always maintaining engagement with the driving wheel 10 and the driven wheel 73, maintaining the transmission of the driven wheel 73. After the drill rod 1 reaches the set position, the servo motor 62 stops, and then the drilling operation can be performed.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drill jig device with adjustable drilling position, comprising a limiting mechanism (2), and a sleeve (5) is assembled on the upper end of the limiting mechanism (2), characterized in that: The top of the inner cavity of the sleeve (5) is fixedly connected with four equiangularly distributed drilling mechanisms (7) and transmission wheel adjusting mechanisms (8), the lower end of the transmission wheel adjusting mechanism (8) is equipped with a transmission wheel (4), and the drilling mechanism (7) comprises a driven shaft (71) and a driven wheel (73), the driven shaft (71) is movably equipped in the sleeve (5), the driven wheel (73) is fixedly installed on the surface of the driven shaft (71), the lower end of the driven shaft (71) is provided with a drill rod (1), a driving wheel (10) is rotatably equipped in the sleeve (5), and the transmission wheel (4) is engaged with the driving wheel (10) and the driven wheel (73) respectively, the lower end of the sleeve (5) is equipped with an adjusting mechanism (6), and the adjusting mechanism (6) comprises a servo motor (62) and an adjusting plate (63), the servo motor (62) is fixedly installed at the bottom of the inner cavity of the sleeve (5), the output shaft of the servo motor (62) is fixedly connected with the adjusting plate (63), and the inner surface of the adjusting plate (63) is provided with an arc-shaped groove (61), one of the slots of the arc-shaped groove (61) is close to the center of the adjusting plate (63), and the other slot is close to the outer circle of the adjusting plate (63), and the driven shaft (71) is inserted into the arc-shaped groove (61).
2. A drill guide device with adjustable drilling position according to claim 1, characterized in that: The inner cavity of the sleeve (5) is fixedly connected with four groups of equiangularly distributed baffles (64) on the upper and lower sides of the adjusting plate (63).
3. A drill guide device with adjustable drilling position according to claim 1, characterized in that: The drilling mechanism (7) further comprises a sliding seat (72), the sliding seat (72) is fixedly connected to the top of the inner cavity of the sleeve (5), the top of the driven shaft (71) is slidingly connected to the inner side of the sliding seat (72), and the bottom of the sleeve (5) is provided with a limiting groove (51), and the lower end of the driven shaft (71) penetrates through the limiting groove (51).
4. A drill guide device with adjustable drilling position according to claim 1, characterized in that: The transmission wheel adjusting mechanism (8) comprises a fixed plate (81), the fixed plate (81) is fixedly connected to the top of the inner cavity of the sleeve (5), the surface of the fixed plate (81) is fixedly connected with a frame (82), the surface of the frame (82) is sleeved with a clamping sleeve (83), the inner surface of the clamping sleeve (83) is fixedly connected with a third spring (84), the end of the third spring (84) is fixedly connected with the surface of the fixed plate (81), the bottom of the clamping sleeve (83) is fixedly connected with a fixed shaft (85), and the bottom of the fixed shaft (85) is rotatably equipped with a transmission wheel (4).
5. A drill guide device with adjustable drilling position according to claim 3, characterized in that: The limiting mechanism (2) comprises a connecting rod (22), the inner side of the connecting rod (22) is fixedly connected with the surface of the sleeve (5), and the inner surface of the connecting rod (22) is slidingly connected with second limiting rods (23) at both ends, and the bottom of the second limiting rod (23) is fixedly connected with a base (21).
6. A drill guide device with adjustable drilling position according to claim 5, characterized in that: It also comprises a pressing mechanism (9), the pressing mechanism (9) comprises a second spring (91), the second spring (91) is located outside the second limiting rod (23) and is fixedly connected with the bottom of the connecting rod (22), the bottom of the second spring (91) is fixedly connected with a pressing plate (92), and the both ends of the pressing plate (92) are sleeved with the second limiting rod (23), and the inner surface of the pressing plate (92) is provided with a long slot (93) corresponding to the limiting groove (51).
7. A drill guide device with adjustable drilling position according to claim 5, characterized in that: The base (21) top is provided with clamping mechanism (3) at both ends, clamping mechanism (3) includes connecting block (33), the inner side of connecting block (33) is movably connected with V type clamping plate (32) through first spring (31), the inner surface of connecting block (33) is slidably connected with first limiting rod (34), first limiting rod (34) is located at the inner side of first spring (31) and the tail end thereof is fixedly connected with the outer side of V type clamping plate (32), and the inner side of V type clamping plate (32) is a stepped structure.