Multi-hole positioning mechanism of pneumatic puncher

Abstract

This utility model discloses a multi-hole positioning mechanism for a pneumatic drilling machine, relating to the technical field of pneumatic drilling equipment. The mechanism includes a drilling base, a base plate, and an insert block. The base plate is fixed to the bottom of the drilling base, and a slot is formed within the base plate. The insert block is inserted into the slot, and a drilling head is mounted on its bottom. A positioning seat and a sliding movable positioning seat are mounted on a support within the drilling base. A limiting ball is installed in the groove at the bottom of the positioning seat and the movable positioning seat via a spring. The limiting groove at the top of the insert block cooperates with the limiting ball to achieve positioning. Simultaneously, the movable positioning seat is slidably connected to the sliding groove of the support via a slider. The slider's screw hole and the lead screw form a transmission pair, and the lead screw is driven by a servo motor. This utility model utilizes the cooperation of the limiting ball and the limiting groove to achieve rapid and stable positioning of the insert block. The servo motor drives the lead screw to move the movable positioning seat, flexibly and accurately adjusting the hole position, improving drilling accuracy and efficiency, expanding its application range, and making it suitable for various multi-hole drilling scenarios.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine technology, and in particular to a multi-hole positioning mechanism for a pneumatic drilling machine. Background Technology

[0002] In the use of pneumatic punching machines, the accuracy and flexibility of multi-hole positioning are key factors affecting punching quality and work efficiency.

[0003] Currently, traditional pneumatic punching machines rely heavily on manual operation for alignment and fixing of insert blocks during multi-hole positioning. This method is prone to inaccurate positioning of the insert blocks due to human error, which in turn causes deviation in the initial position of the punching head, ultimately resulting in inaccurate punching positions and affecting product processing quality. This positioning method is particularly unsuitable for production needs in high-precision processing scenarios, often requiring subsequent correction processing, which increases production and time costs.

[0004] Meanwhile, the existing multi-hole positioning mechanisms of pneumatic punching machines are cumbersome to operate when adjusting the hole position. Most mechanisms require manual adjustment of the position of the insert or positioning component, which is not only inconvenient to operate, but also makes it difficult to achieve fine adjustment of the hole position. As a result, when facing the drilling needs of various different hole positions, the adjustment process is time-consuming and has poor adaptability. Although some mechanisms use mechanical drive for adjustment, due to unreasonable drive structure design, the adjustment accuracy is low and it is impossible to accurately switch and position different hole positions, which limits the application range of pneumatic punching machines and makes it difficult to meet diverse processing needs.

[0005] Therefore, in view of the problems of insufficient positioning accuracy of the insert block and poor flexibility and precision of hole adjustment in the above-mentioned existing technologies, there is an urgent need for a multi-hole positioning mechanism for pneumatic drilling machines that can achieve rapid and stable positioning of the insert block and facilitate flexible and precise adjustment of the hole position. Utility Model Content

[0006] One objective of this invention is to provide a multi-hole positioning mechanism for a pneumatic drilling machine. This invention utilizes the spring and limiting ball at the bottom of the positioning seat and the movable positioning seat to cooperate with the limiting groove at the top of the insertion block, thereby achieving rapid and stable positioning of the insertion block, effectively improving the positioning accuracy of the insertion block, and ensuring the accuracy of the drilling position. At the same time, by using a servo motor to drive the lead screw to move the movable positioning seat, the hole position can be flexibly and accurately adjusted to meet various multi-hole drilling needs, thereby improving the applicability and operating efficiency of the mechanism.

[0007] A multi-hole positioning mechanism for a pneumatic punching machine according to an embodiment of the present invention includes a punching base, a base plate, and an insert block. The base plate is fixedly installed at the bottom of the punching base, and a slot is formed inside the base plate. The insert block is inserted into the slot, and a punching head is vertically fixedly installed at the bottom of the insert block. A bracket is fixedly installed at the top of the slot and inside the punching base. A positioning seat is fixedly installed in the center of the inner side of the bracket. Movable positioning seats are slidably installed on both sides of the positioning seat inside the bracket. A groove is formed in the center of the bottom of the positioning seat and the movable positioning seat. A spring is fixedly installed in the groove. A limit ball is fixedly installed at the bottom of the spring. A limit groove is formed in the center of the top of the insert block, and the limit ball is embedded in the limit groove.

[0008] Furthermore, a mounting base is fixedly installed at the center of the top of the punching base, and a mounting hole is provided circumferentially along the center of the mounting base.

[0009] Furthermore, sliders are fixedly installed on the outer walls of both sides of the movable positioning seat, and sliding grooves are provided through both sides of the bracket. The sliders are slidably installed in the sliding grooves, and screw holes are provided through the sliders.

[0010] Furthermore, lead screws are symmetrically installed on the top of the base plate and at both ends of the front side of the bracket via the bracket. Servo motors are installed on the inner side of both sets of lead screws, and the lead screws pass through the screw holes to form a transmission pair.

[0011] Furthermore, the mounting base has one mounting hole, which is distributed at equal angular intervals along the center of the mounting base.

[0012] Furthermore, the slot and the plug are in a clearance fit, with a clearance value of 0.05-0.1mm.

[0013] Furthermore, the spring is a cylindrical helical compression spring, and its length in its natural state is greater than the depth of the groove.

[0014] Furthermore, the limiting ball is a steel sphere with a diameter of 3-5mm, and the cross-sectional shape of the limiting groove is adapted to the cross-sectional shape of the limiting ball.

[0015] Furthermore, the lead screw is a ball screw with a precision grade of C3-C5.

[0016] Furthermore, both the slider and the groove have T-shaped cross-sections, and the length of the slider is adapted to the length of the groove.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this utility model, the spring at the bottom of the positioning seat and the movable positioning seat, along with the limiting ball and the limiting groove at the top of the insert block, cooperate to achieve rapid and stable initial positioning of the insert block when it is inserted into the slot. This mechanical positioning method reduces errors caused by human operation, provides a precise initial position reference for the drilling head, and effectively ensures the accuracy of the drilling position.

[0019] 2. In this utility model, a servo motor drives the lead screw to rotate. The transmission pair formed by the lead screw and the screw hole of the slider drives the slider to slide in the groove, thereby moving the movable positioning seat. The movement of the movable positioning seat can drive the corresponding insertion block to adjust its position. Combined with the fixed positioning seat in the center to fix and position the middle insertion block, it is possible to flexibly realize the switching and positioning of different hole positions. This electric drive adjustment method is not only convenient to operate, but also can realize the micro-adjustment of hole position through the precise control of the servo motor, which can meet the needs of drilling multiple holes and greatly improve the applicability of the mechanism. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a multi-hole positioning mechanism for a pneumatic punching machine proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the bottom structure of a multi-hole positioning mechanism for a pneumatic punching machine proposed in this utility model;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of a multi-hole positioning mechanism for a pneumatic punching machine proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the movable positioning seat structure of a multi-hole positioning mechanism for a pneumatic punching machine proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the insert block structure of a multi-hole positioning mechanism for a pneumatic punching machine proposed in this utility model.

[0026] In the diagram: 1. Drilling base; 2. Mounting base; 3. Base plate; 4. Slot; 5. Insert block; 6. Drilling head; 7. Bracket; 8. Slide groove; 9. Movable positioning seat; 10. Positioning seat; 11. Slider; 12. Lead screw; 13. Servo motor; 14. Screw hole; 15. Groove; 16. Spring; 17. Limit ball; 18. Limit groove. Detailed Implementation

[0027] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0028] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] like Figure 1-5As shown, this utility model discloses a multi-hole positioning mechanism for a pneumatic punching machine, including a punching base 1, a base plate 3, and an insert block 5. The base plate 3 is fixedly installed at the bottom of the punching base 1, and a slot 4 is formed inside the base plate 3. The insert block 5 is inserted into the slot 4, and a punching head 6 is vertically fixedly installed at the bottom of the insert block 5. A bracket 7 is fixedly installed at the top of the slot 4 and inside the punching base 1. A positioning seat 10 is fixedly installed in the center of the inner side of the bracket 7. Movable positioning seats 9 are slidably installed in the inner side of the bracket 7 and on both sides of the positioning seat 10. A groove 15 is formed in the center of the bottom of the positioning seat 10 and the movable positioning seat 9. A spring 16 is fixedly installed in the groove 15. The bottom of the spring 16... A limiting ball 17 is fixedly installed, and a limiting groove 18 is centrally located on the top of the insert block 5, into which the limiting ball 17 is embedded. A mounting base 2 is fixedly installed centrally on the top of the punching base 1, and a mounting hole is circumferentially opened along the center of the mounting base 2. Slider blocks 11 are fixedly installed on the outer walls of both sides of the movable positioning base 9. A sliding groove 8 is opened through both sides of the bracket 7, and the slider 11 is slidably installed in the sliding groove 8. A screw hole 14 is opened through the slider 11. A lead screw 12 is symmetrically installed on the top of the base plate 3 and on both ends of the front side of the bracket 7 through the bracket. A servo motor 13 is driven and installed on the inner side of both sets of lead screws 12, and the lead screw 12 passes through the screw hole 14 to form a transmission pair.

[0032] This application discloses a multi-hole positioning mechanism for a pneumatic punching machine. In use, the positioning mechanism is mounted on the pneumatic punching machine via a mounting base 2 on the top of the punching base 1. The mounting holes in the mounting base 2 ensure a secure installation. According to the punching requirements, an insert 5 with a suitable punching head 6 is inserted into the slot 4 of the base plate 3. During insertion, the insert 5 compresses the limiting ball 17 at the bottom of the positioning base 10 and the movable positioning base 9, causing the spring 16 to contract. When the limiting groove 18 on the top of the insert 5 corresponds to the position of the limiting ball 17, the spring 16 returns to its original position, pushing the limiting ball 17 into the limiting groove 18, thus achieving initial positioning of the insert 5.

[0033] When it is necessary to adjust the drilling position to achieve multi-hole drilling, the servo motor 13 is started. The servo motor 13 drives the lead screw 12 to rotate. Since the lead screw 12 and the screw hole 14 of the slider 11 form a transmission pair, the rotation of the lead screw 12 causes the slider 11 to slide in the slide groove 8 of the bracket 7, thereby driving the movable positioning seat 9 to move. During the movement of the movable positioning seat 9, the corresponding insertion block 5 can be adjusted to adjust its position. At the same time, the positioning seat 10 plays a fixed positioning role for the middle insertion block 5, thereby achieving precise positioning of different hole positions and meeting the needs of multi-hole drilling.

[0034] The multi-hole positioning mechanism of the pneumatic punching machine described in this application uses a positioning seat 10 and a sliding movable positioning seat 9 to achieve rapid positioning of the insert block 5 by means of a spring 16, a limiting ball 17 and a limiting groove 18. At the same time, the servo motor 13 drives the lead screw 12 to move the movable positioning seat 9, thereby achieving flexible adjustment of the hole position. This improves the accuracy and efficiency of multi-hole punching, and the structure is reasonably designed and easy to operate.

[0035] As a preferred example of this application, the mounting base 2 has 4-8 mounting holes, which are distributed at equal angular intervals along the center of the mounting base 2. This arrangement makes the connection between the mounting base 2 and the pneumatic drilling machine more stable, avoids shaking during the drilling process, and ensures drilling accuracy.

[0036] As a preferred example of this application, the slot 4 and the insert 5 are in a clearance fit, with a clearance value of 0.05-0.1mm. This clearance fit facilitates the insertion and removal of the insert 5, while also ensuring the stability of the insert 5 within the slot 4 and reducing shaking during drilling.

[0037] As a preferred example of this application, the spring 16 is a cylindrical helical compression spring, and its length in its natural state is greater than the depth of the groove 15. This design ensures that the spring 16 always applies a certain pressure to the limiting ball 17, guaranteeing a tight fit between the limiting ball 17 and the limiting groove 18, and improving positioning reliability.

[0038] As a preferred example of this application, the limiting ball 17 is a steel sphere with a diameter of 3-5 mm, and the cross-sectional shape of the limiting groove 18 is adapted to the cross-sectional shape of the limiting ball 17. The steel sphere has high strength and good wear resistance, which can extend its service life, while the adapted cross-sectional shape can ensure a good fit between the limiting ball 17 and the limiting groove 18, enhancing the positioning effect.

[0039] As a preferred example of this application, the lead screw 12 is a ball screw with a precision grade of C3-C5. Ball screws offer high transmission efficiency and high positioning accuracy, ensuring more precise movement of the movable positioning seat 9, thereby guaranteeing the accuracy of hole position adjustment.

[0040] As a preferred example of this application, both the slider 11 and the groove 8 have T-shaped cross-sections, and the length of the slider 11 is adapted to the length of the groove 8. The T-shaped structure can prevent the slider 11 from falling out of the groove 8, ensuring the stability of the sliding process of the movable positioning seat 9. At the same time, the adapted length can limit the movement range of the movable positioning seat 9, avoiding excessive movement that could cause structural damage.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-hole positioning mechanism for a pneumatic punch, comprising: The device includes a punch holder (1), a base plate (3), and an insert (5). The base plate (3) is fixedly installed at the bottom of the punch holder (1). A slot (4) is provided inside the base plate (3). The insert (5) is inserted into the slot (4). A punch head (6) is vertically fixedly installed at the bottom of the insert (5). A bracket (7) is fixedly installed at the top of the slot (4) and inside the punch holder (1). A positioning seat (10) is fixedly installed in the center of the inner side of the bracket (7). The bracket (7) is slidably mounted on the inner side and on both sides of the positioning seat (10). The positioning seat (10) and the movable positioning seat (9) have a groove (15) in the center at the bottom. A spring (16) is fixedly installed in the groove (15). A limit ball (17) is fixedly installed at the bottom of the spring (16). A limit groove (18) is opened in the center at the top of the insert (5). The limit ball (17) is embedded in the limit groove (18).

2. The multi-hole positioning mechanism for a pneumatic punching machine according to claim 1, characterized in that, The top of the punching base (1) is fixedly mounted with a mounting base (2), and the mounting base (2) has a mounting hole circumferentially opened along the center of the circle.

3. The multi-hole positioning mechanism for a pneumatic drilling machine according to claim 1, characterized in that, The movable positioning seat (9) has sliders (11) fixedly installed on both outer walls. The bracket (7) has through grooves (8) on both sides. The sliders (11) are slidably installed in the grooves (8). The sliders (11) have through screw holes (14).

4. The multi-hole positioning mechanism for a pneumatic punching machine according to claim 1, characterized in that, The bottom plate (3) is symmetrically mounted with lead screws (12) on both ends of the support (7) via the support. Both sets of lead screws (12) are equipped with servo motors (13) inside the screws (12). The lead screws (12) pass through the screw holes (14) to form a transmission pair.

5. A multi-hole positioning mechanism for a pneumatic punching machine according to claim 2, characterized in that, The mounting base (2) has 4-8 mounting holes, which are distributed at equal angles along the center of the mounting base (2).

6. The multi-hole positioning mechanism for a pneumatic drilling machine according to claim 1, characterized in that, The slot (4) and the insert (5) are in clearance fit, and the clearance value is 0.05-0.1mm.

7. The multi-hole positioning mechanism for a pneumatic drilling machine according to claim 1, characterized in that, The spring (16) is a cylindrical helical compression spring, and its length in its natural state is greater than the depth of the groove (15).

8. The multi-hole positioning mechanism for a pneumatic drilling machine according to claim 1, characterized in that, The limiting ball (17) is a steel ball with a diameter of 3-5 mm, and the cross-sectional shape of the limiting groove (18) is adapted to the cross-sectional shape of the limiting ball (17).

9. A multi-hole positioning mechanism for a pneumatic punching machine according to claim 4, characterized in that, The lead screw (12) is a ball screw with a precision grade of C3-C5.

10. A multi-hole positioning mechanism for a pneumatic punching machine according to claim 3, characterized in that, The cross-sectional shape of both the slider (11) and the groove (8) is T-shaped, and the length of the slider (11) is matched with the length of the groove (8).

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