Drilling device for convex v-shaped guide plate

Abstract

The application discloses a kind of drilling devices for convex V-shaped guide plate, it is related to convex V-shaped guide plate drilling technical field.It includes with the upper surface of convex V-shaped guide plate engagement concave V-shaped guide block, concave V-shaped guide block top is equipped with air drill, drill bit can pass through concave V-shaped guide block and drill on convex V-shaped guide plate with air drill lower displacement, air drill upper end and manual pressing block abut, and the top of manual pressing block is hinged with handle rod;Handle rod one end supports connecting rod upper portion hinged, and connecting rod lower end is hinged with concave V-shaped guide block, connecting rod and the hinged axle of concave V-shaped guide block are hinged with safety support, and fixed screw a is equipped on safety support, and auxiliary fixing rod group is further equipped on connecting rod.The application provides a kind of drilling devices for convex V-shaped guide plate, it can be quickly, accurately prepared pinhole, to reduce the dependence on operator skill, improve processing quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of drilling technology for convex V-shaped guide plates, and more particularly to a drilling device for convex V-shaped guide plates. Background Technology

[0002] In the manufacturing process of automotive body panels, to ensure the precision of the parts, wedge trimming and punching, as well as wedge flanging and shaping processes, are widely used in stamping. To improve the reliability of the wedge mechanism's reset and production stability, a double V-shaped guide plate structure with concave and convex components is typically designed between the guide surface and the drive surface of the wedge's moving slider. The concave V-shaped guide plate is mounted on the wedge slider, while the convex V-shaped guide plate is fixed to the upper and lower die bases. Furthermore, after the die assembly and coloring adjustments are completed, pin holes are drilled and assembly pins are installed on both the concave and convex V-shaped guide plates to ensure assembly stability and coloring consistency.

[0003] Currently, for concave V-shaped guide plates on wedge sliders, due to their small size, they can usually be disassembled and drilled using an angle-drilling machine, with the pin holes machined manually by adding shims or adjusting the angle using special tooling. However, drilling pin holes for convex V-shaped guide plates installed on upper and lower mold bases presents many difficulties. Existing drilling methods for convex V-shaped guide plates mainly include two types: one is manual drilling using a pneumatic or electric drill based on the fitter's personal experience, but this method is not only time-consuming and labor-intensive, but also makes it difficult to guarantee the perpendicularity and diameter accuracy of the pin holes, resulting in inconsistent quality; the other is drilling using a magnetic drill or CNC machine tool, but this is often not effectively implemented due to limitations such as the equipment's angle-drilling capability, operating space, and magnetic drill adsorption area, especially in situations where space is limited or the guide plate size is small, making it difficult for the magnetic drill to maintain a stable hold, thus preventing drilling.

[0004] Furthermore, existing methods for drilling convex V-shaped guide plates suffer from problems such as complex clamping, difficult adjustment, and low efficiency. These issues not only severely affect the machining quality of the pin holes but also increase manufacturing costs and operational difficulty, extending the mold assembly cycle. Therefore, there is an urgent need for a specialized device that is simple in structure, easy to operate, highly adaptable, and capable of rapidly and accurately drilling pin holes in convex V-shaped guide plates to address the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a drilling device for a convex V-shaped guide plate, which can quickly and accurately prepare pin holes, thereby reducing reliance on operator skills and improving processing quality and efficiency.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is: a drilling device for a convex V-shaped guide plate, including a concave V-shaped guide block whose lower surface fits with the upper surface of the convex V-shaped guide plate, an air drill that can move up and down and whose drill bit is vertically set at its lower end is provided above the concave V-shaped guide block, the drill bit can pass through the concave V-shaped guide block and drill a hole in the convex V-shaped guide plate as the air drill moves down, the upper end of the air drill abuts against a manual pressure block that can move up and down, and the top of the manual pressure block is hinged to the rod of a handle rod; One end of the handle rod is hinged to the upper part of the vertically arranged support rod, and the lower end of the support rod is hinged to the concave V-shaped guide block. A safety bracket is hinged on the hinge axis of the support rod and the concave V-shaped guide block, and the safety bracket is provided with a fixing screw a for fixing it to the mold base. An auxiliary fixing rod group is also provided on the support rod.

[0007] As a further improvement of the present invention, guide posts are vertically provided on both sides of the upper surface of the concave V-shaped guide block, and a pneumatic drill fixing block is provided between the two guide posts, which slides vertically with the guide posts. A pneumatic drill mounting hole is provided in the middle of the pneumatic drill fixing block, and a spring is sleeved on the guide post between the pneumatic drill fixing block and the concave V-shaped guide block.

[0008] As a further improvement of the present invention, each of the guide posts is coaxially connected to a guide rod at its upper end, and the manual pressure block is vertically slidably mounted on the two guide rods on both sides.

[0009] As a further improvement of the present invention, the bottom of the manual pressure block is provided with an arc-shaped plate that is adapted to the upper end of the air drill and the handle of the air drill. The arc-shaped plate is provided with a switch control ring that can fit the handle of the air drill and the arc-shaped plate. A control ring nut is fixedly connected to the switch control ring. An adjusting screw that is threadedly engaged with the control ring nut is also rotatably installed on the arc-shaped plate.

[0010] As a further improvement of the present invention, the auxiliary fixing rod assembly includes a connecting rod and a safety connecting rod. One end of the connecting rod is hinged to the hinge shaft between the handle rod and the support connecting rod, and the other end of the connecting rod is hinged to a switch-type magnetic seat b. One end of the safety connecting rod is hinged to the support connecting rod, and the other end of the safety connecting rod is provided with a fixing screw b for fixing it to the mold base.

[0011] As a further improvement of the present invention, the support rod, connecting rod and safety rod are each provided with a plurality of pin holes arranged sequentially along the extension direction of the rod body for mounting the hinge shaft.

[0012] As a further improvement of the present invention, the manual pressure block is hinged to the body of a handle rod by a mounting rod vertically set at its top. The mounting rod is provided with a plurality of pin holes arranged sequentially along the extension direction of the rod body for mounting the hinge shaft, and the handle rod is provided with a strip hole arranged sequentially along the extension direction of the rod body for mounting the hinge shaft.

[0013] As a further improvement of the present invention, the lower surface of the concave V-shaped guide block is provided with a concave V-shaped surface that fits with the upper surface of the convex V-shaped guide plate, and a switch-type magnetic seat a is embedded in both sides of the concave V-shaped surface.

[0014] As a further improvement of the present invention, the concave V-shaped guide block is provided with a fixing screw c for fixing and installing the switch-type magnetic base a, and the outer wall of the switch-type magnetic base a is also provided with a ball-head pin for positioning and installing it on the concave V-shaped guide block.

[0015] As a further improvement of the present invention, the upper surface of the concave V-shaped guide block is detachably fitted with a guide tube for the drill bit to pass through.

[0016] Beneficial effects Compared with the prior art, the drilling device for a convex V-shaped guide plate of the present invention has the following advantages: 1. Solves the problems of spatial interference and equipment dependence: The device has a compact structure and does not rely on large swivel drilling machines or CNC machine tools. It effectively overcomes the problem that it is impossible to operate in narrow mold space due to the large size of the equipment swivel head or magnetic drill base. It is especially suitable for small convex V-shaped guide plates or occasions with limited operating space, reducing the dependence on expensive special equipment. 2. Achieved high precision and high perpendicularity drilling: Through the automatic and precise matching of the concave V-shaped guide block and the convex V-shaped guide plate, combined with the precise sliding fit between the guide post and the air drill fixing block, it is ensured that the drill bit axis is always perpendicular to the reference plane of the convex V-shaped guide plate; in addition, the replaceable guide tube can guide and constrain the drill bit, fundamentally guaranteeing the perpendicularity, coaxiality and hole diameter accuracy of the pin hole, and solving the problem of unstable quality of manual drilling; 3. Improved ease of operation and reliability of fixation: The device uses switchable magnetic base a and switchable magnetic base b for quick adsorption and fixation, combined with adjustable safety brackets and screws for safety linkage, which realizes the quick and stable installation of the device on the mold base, avoids displacement or vibration during drilling, simplifies the clamping process, and improves work efficiency and operational safety. 4. Enhanced adaptability and versatility: By setting multiple pin holes and strip holes, the hinge position and length of the support rod, connecting rod, safety rod, and handle rod can be flexibly adjusted; this adjustable rod structure enables the device to adapt to drilling operations of convex V-shaped guide plates of different sizes, angles, and spatial layouts, making it highly versatile. 5. Reduced operational difficulty and skill dependence: This device uses mechanical guidance and levers to transmit operating force, transforming manual drilling, which relies on personal feel and experience, into stable and controllable mechanical feed drilling. Operators only need to press down the handle to complete precise drilling, significantly reducing dependence on the individual skill level of the fitter, ensuring consistent processing quality, and shortening the training cycle.

[0017] The invention will become clearer from the following description, taken in conjunction with the accompanying drawings, which are used to explain embodiments of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the usage state diagrams of the present invention; Figure 2 This is the second usage state diagram of the present invention; Figure 3 This is a schematic diagram of the concave V-shaped guide block of the present invention; Figure 4 This is a schematic diagram showing the positions of the switchable magnetic base a and the conduit of the present invention; Figure 5 This is a schematic diagram of the structure of the air drill fixing block of the present invention; Figure 6 This is a schematic diagram of the manual pressing block of the present invention.

[0020] Wherein: 1-Concave V-shaped guide block; 11-Concave V-shaped surface; 12-Switch type magnetic base a; 121-Fixing screw c; 122-Ball head pin; 13-Conduit; 14-Hinge ear; 141-Safety bracket; 142-Fixing screw a; 2-Guide post; 21-Spring; 3-Air drill fixing block; 31-Air drill mounting hole; 4-Air drill; 41-Drill bit; 5-Manual pressure block; 51-Guide rod; 52-Adjusting screw; 521-Control ring nut; 53-Switch control ring; 54-Handle rod; 6-Support connecting rod; 61-Connecting rod; 611-Hinge; 612-Switch type magnetic base b; 7-Safety connecting rod; 71-Fixing screw b; 8-Pin hole; 9-Convex V-shaped guide plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0024] Example: Specific embodiments of the present invention are as follows: Figure 1-6 As shown, a drilling device for a convex V-shaped guide plate includes a concave V-shaped guide block 1, a guide post 2, a pneumatic drill fixing block 3, a pneumatic drill 4, a manual pressure block 5, a support connecting rod 6, an auxiliary fixing rod assembly, and a safety bracket 141. The pneumatic drill 4 is positioned above the concave V-shaped guide block 1 and can move up and down; the drill bit 41 is vertically positioned at its lower end. In this embodiment, the drill bit 41 can pass through the concave V-shaped guide block 1 and drill a hole in the convex V-shaped guide plate 9 as the pneumatic drill 4 moves down. The upper end of the pneumatic drill 4 abuts against a manually movable pressure block 5, and the top of the manually movable pressure block 5 is hinged to the rod body of a handle rod 54. The concave V-shaped guide block 1 has a concave V-shaped surface 11 on its lower surface that precisely matches the upper surface of the convex V-shaped guide plate 9. A switch-type magnetic seat a12 is embedded in each of the two inclined surfaces of the concave V-shaped surface 11, and the switch-type magnetic seat a12 is firmly fixed to the concave V-shaped guide block 1 by fixing screws c121. In addition, a ball-head pin 122 on the outer wall of the switch-type magnetic seat a12 provides three-point positioning during installation, effectively resisting lateral offset forces. A mounting hole is provided at the center of the upper surface of the concave V-shaped guide block 1. A detachable guide tube 13 for the drill bit 41 to pass through is inserted into the mounting hole. The guide tube 13 is made of high-hardness alloy material, and its inner hole precisely matches the diameter of the drill bit.

[0025] A guide post 2 is vertically fixed on each side of the upper surface of the concave V-shaped guide block 1. A pneumatic drill fixing block 3 is installed between the two guide posts 2, and the pneumatic drill fixing block 3 forms a precision sliding fit with the guide post 2 through a linear bearing. A pneumatic drill mounting hole 31 is machined in the middle of the pneumatic drill fixing block 3, and the diameter of the hole is precisely matched with the body of the pneumatic drill 4. A spring 21 is fitted on the guide post 2 between the pneumatic drill fixing block 3 and the concave V-shaped guide block 1 to provide a restoring force after drilling.

[0026] The upper end of the guide post 2 is coaxially connected to the guide rod 51 via a thread. The manual pressure block 5 is vertically slidably mounted on the two guide rods 51 via sliding bearings on both sides. The bottom of the manual pressure block 5 is machined with an arc-shaped pressure surface that matches the shape of the upper end of the air drill 4 and the handle of the air drill 4. The arc-shaped plate is provided with a switch control ring 53 that can fit the handle of the air drill 4 and the arc-shaped plate, and a control ring nut 521 is fixedly connected to the switch control ring 53; an adjusting screw 53 that is threadedly engaged with the control ring nut 521 is also rotatably mounted on the arc-shaped pressure surface. The switch control ring 53 is installed on the arc-shaped pressure surface, and the quick clamping and switching control of the air drill 4 can be achieved through the threaded engagement of the control ring nut 521 and the adjusting screw 52.

[0027] The manual pressure block 5 is hinged to the body of a handle rod 54 via a vertically mounted mounting rod at its top. The mounting rod has multiple pin holes 8 arranged sequentially along the extension direction of the rod body for mounting the hinge shaft. The handle rod 54 has a strip-shaped hole arranged sequentially along the extension direction of the rod body for mounting the hinge shaft. The handle rod 54 is hinged to the mounting rod via pins, and the strip-shaped hole on the handle rod 54 allows for continuous adjustment of the hinge position.

[0028] One end of the handle rod 54 is hinged to the upper part of the vertically arranged support rod 6, and the lower end of the support rod 6 is hinged to the hinge lug 14 on the concave V-shaped guide block 1. A safety bracket 141 is simultaneously hinged to the hinge axis of the support rod 6 and the concave V-shaped guide block 1. A fixing screw a142 is installed on the safety bracket 141 for fixed connection with the mold base.

[0029] An auxiliary fixing rod assembly, including a connecting rod 61 and a safety connecting rod 7, is provided on the support link 6. One end of the connecting rod 61 is connected to the hinge shaft of the handle rod 54 and the support link 6, and the other end is connected to the switch-type magnetic base b612 via a hinge 611. One end of the safety connecting rod 7 is hinged to the support link 6, and the other end is fitted with a fixing screw b71 for auxiliary fixing to the mold base.

[0030] Multiple pin holes 8 are machined axially on the rods of the support rod 6, connecting rod 61 and safety rod 7, and the length of the rods can be adjusted in multiple stages by selecting different pin hole positions.

[0031] The device operates as follows: Step 1: First, precisely fasten the concave V-shaped surface 11 of the concave V-shaped guide block 1 onto the convex V-shaped guide plate 9. Turn on the switch-type magnetic base a12, and use magnetic force to quickly attract and fix the device onto the surface of the convex V-shaped guide plate 9.

[0032] Therefore, this device does not require large swivel drilling machines or CNC machine tools, effectively overcoming the problem of being unable to operate in narrow mold base spaces due to the excessive size of the equipment's swivel head or magnetic drill base; it is particularly suitable for small convex V-shaped guide plates 9 or situations where operating space is limited, significantly reducing reliance on expensive special equipment.

[0033] Step Two: Based on the available space, adjust the length and angle of each rod by selecting different combinations of pin holes 8 on the support rod 6, connecting rod 61, and safety rod 7, so that the switch-type magnetic base b612 can be attached to the appropriate position on the mold base. Then, use fixing screws a142 and b71 to firmly connect the safety bracket 141 and safety rod 7 to the mold base.

[0034] By setting multiple pin holes 8 and strip holes, the hinge positions and lengths of the support rod 6, connecting rod 61, safety rod 7, and handle rod 54 can all be flexibly adjusted. This adjustable linkage structure allows the device to adapt to drilling operations on convex V-shaped guide plates 9 of different sizes, angles, and spatial layouts, making it highly versatile. Simultaneously, the device uses switchable magnetic bases a12 and b612 for quick adsorption and fixation, combined with the adjustable safety bracket 141 and the screw-assisted fixation of the safety rod 7, achieving rapid and stable installation of the device on the mold base. This effectively improves operational convenience and fixation reliability, avoids displacement or vibration during drilling, simplifies the clamping process, and improves work efficiency and operational safety.

[0035] Step 3: Insert the air drill 4 into the air drill mounting hole 31 of the air drill fixing block 3, and adjust the switch control ring 53 by adjusting the adjusting screw 52 to reliably fix the air drill 4. Select a drill bit 41 of appropriate diameter and pass it through the guide tube 13. When starting to drill, the operator holds the free end of the handle rod 54 and presses it down smoothly. The force is transmitted to the air drill 4 through the lever mechanism via the manual pressure block 5, causing the air drill fixing block 3 to move smoothly down along the guide post 2, and the spring 21 is compressed. Under the precise guidance of the guide tube 13, the drill bit 41 drills a pin hole on the convex V-shaped guide plate 9.

[0036] Through the automatic and precise engagement of the concave V-shaped guide block 1 and the convex V-shaped guide plate 9, combined with the precise sliding fit between the guide post 2 and the air drill fixing block 3, the axis of the drill bit 41 is ensured to always remain perpendicular to the reference plane of the convex V-shaped guide plate 9. Furthermore, the replaceable guide tube 13 guides and constrains the drill bit 41, fundamentally guaranteeing the perpendicularity, coaxiality, and diameter accuracy of the pin hole, thus solving the problem of unstable quality in manual drilling. Simultaneously, this device, through mechanical guidance and lever transmission of operating force, transforms manual drilling, which relies on personal feel and experience, into stable and controllable mechanical feed drilling. The operator only needs to press down the handle lever 54 to complete precise drilling, significantly reducing reliance on the individual skill level of the fitter, ensuring consistent processing quality, and shortening the training cycle.

[0037] Finally, after drilling is complete, slowly release handle 54. Under the reset action of spring 21, all components of the device smoothly return to their initial positions. Close all magnetic seats and loosen all fixing screws to quickly remove the device. The entire operation process demonstrates the comprehensive advantages of the device: compact structure, precise positioning, simple operation, and strong adaptability, showcasing significant technological advancements and practical value in real-world applications.

[0038] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A drilling device for a convex V-shaped guide plate, characterized in that, Includes a concave V-shaped guide block (1) whose lower surface fits the upper surface of the convex V-shaped guide plate (9), and an air drill (4) that can move up and down and whose drill bit (41) is vertically set at its lower end is provided above the concave V-shaped guide block (1). The drill bit (41) can pass through the concave V-shaped guide block (1) and drill a hole in the convex V-shaped guide plate (9) as the air drill (4) moves down. The upper end of the air drill (4) abuts against a manual pressure block (5) that can move up and down, and the top of the manual pressure block (5) is hinged to the rod of a handle rod (54). One end of the handle rod (54) is hinged to the upper part of the vertically arranged support rod (6), and the lower end of the support rod (6) is hinged to the concave V-shaped guide block (1). A safety bracket (141) is hinged on the hinge axis of the support rod (6) and the concave V-shaped guide block (1), and a fixing screw a (142) for fixing it to the mold base is provided on the safety bracket (141). An auxiliary fixing rod group is also provided on the support rod (6).

2. The drilling device for the convex V-shaped guide plate according to claim 1, characterized in that, The upper surface of the concave V-shaped guide block (1) is provided with guide posts (2) on both sides, and a gas drill fixing block (3) is provided between the two guide posts (2) and slides vertically with the guide posts (2). A gas drill mounting hole (31) is provided in the middle of the gas drill fixing block (3), and a spring (21) is sleeved on the guide post (2) between the gas drill fixing block (3) and the concave V-shaped guide block (1).

3. The drilling device for the convex V-shaped guide plate according to claim 2, characterized in that, The upper ends of the guide posts (2) are all coaxially connected to guide rods (51), and the manual pressure block (5) is vertically slidably mounted on the two guide rods (51) on both sides.

4. The drilling device for the convex V-shaped guide plate according to any one of claims 1-3, characterized in that, The bottom of the manual pressure block (5) is provided with an arc-shaped plate that is compatible with the upper end of the air drill (4) and the handle of the air drill (4). The arc-shaped plate is provided with a switch control ring (53) that can fit the handle of the air drill (4) and the arc-shaped plate. A control ring nut (521) is fixedly connected to the switch control ring (53). An adjusting screw (53) that is threadedly engaged with the control ring nut (521) is also rotatably installed on the arc-shaped plate.

5. The drilling device for the convex V-shaped guide plate according to claim 1, characterized in that, The auxiliary fixing rod group includes a connecting rod (61) and a safety connecting rod (7). One end of the connecting rod (61) is hinged to the hinge shaft between the handle rod (54) and the support connecting rod (6), and the other end of the connecting rod (61) is hinged to a switch-type magnetic base b (612) via a hinge (611). One end of the safety connecting rod (7) is hinged to the support connecting rod (6), and the other end of the safety connecting rod (7) is provided with a fixing screw b (71) for fixing it to the mold base.

6. The drilling device for the convex V-shaped guide plate according to claim 5, characterized in that, The support rod (6), connecting rod (61) and safety rod (7) are each provided with a plurality of pin holes (8) arranged sequentially along the extension direction of the rod body for installing the hinge shaft.

7. The drilling device for the convex V-shaped guide plate according to claim 1, characterized in that, The manual pressure block (5) is hinged to the body of a handle rod (54) by a mounting rod vertically set at its top. The mounting rod is provided with a plurality of pin holes (8) arranged sequentially along the extension direction of the rod body for installing the hinge shaft. The handle rod (54) is provided with a strip hole arranged sequentially along the extension direction of the rod body for installing the hinge shaft.

8. The drilling device for the convex V-shaped guide plate according to claim 1, characterized in that, The lower surface of the concave V-shaped guide block (1) is provided with a concave V-shaped surface (11) that fits with the upper surface of the convex V-shaped guide plate (9), and a switch-type magnetic seat a (12) is embedded on both sides of the concave V-shaped surface (11).

9. The drilling device for the convex V-shaped guide plate according to claim 8, characterized in that, The concave V-shaped guide block (1) is provided with a fixing screw c (121) for fixing and installing the switch-type magnetic base a (12). The outer wall of the switch-type magnetic base a (12) is also provided with a ball head pin (122) for positioning and installing it on the concave V-shaped guide block (1).

10. The drilling device for the convex V-shaped guide plate according to claim 1, characterized in that, The upper surface of the concave V-shaped guide block (1) is detachably fitted with a guide tube (13) through which the drill bit (41) passes.

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