A workpiece auxiliary positioning device for a drilling machine

Abstract

A workpiece auxiliary positioning device for a drilling machine, belonging to the field of drilling machine positioning technology, includes a worktable and further includes: a through slot, a positioning frame, a strip slot, a first positioning bolt, a first positioning nut, a mounting plate, an adjusting slot, a second positioning bolt, and a second positioning nut. Two through slots are provided, each horizontally penetrating the worktable; two positioning frames are also provided. This invention breaks through the limitations of traditional screw clamps on workpiece specifications, adapting to the clamping requirements of workpieces of different lengths and contours, accurately meeting the high-precision positioning requirements of diverse processing scenarios. Utilizing the connection structure between multiple equally spaced adjusting slots and the second positioning bolt, equidistant displacement adjustment is achieved, meeting the requirements for equidistant hole processing, reducing tooling change frequency, and lowering processing costs and time losses. The device integrates two adjustment methods to form a dual-mode collaborative mechanism, supporting dynamic switching between stepless fine control and equidistant step adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of drilling machine positioning technology, and specifically relates to a workpiece auxiliary positioning device for drilling machines. Background Technology

[0002] Drilling workpiece positioning is a process in which the workpiece is accurately fixed at a designated position on the drilling machine table using a positioning device before drilling. Its purpose is to ensure that the drilling position and dimensional accuracy of the workpiece meet the design requirements, prevent the workpiece from shifting during processing, improve processing quality and efficiency, and ensure the consistency and stability of mass production.

[0003] A related technology (Chinese Patent No. CN216503602U) discloses a positioning device for a bench drill, including a drill and a positioning structure. The positioning structure is located on the upper part of the drill, and an auxiliary structure is provided on the top of the positioning structure. The positioning structure includes a base plate fixedly installed on the top of the drill, a processing table fixedly connected to the top of the base plate, and two fixed plates fixedly connected to the top of the processing table. A first placement groove is formed on the top of the fixed plate, and a first electric push rod is fixedly connected to the inner side of the first placement groove. A top plate is movably connected to the top of the fixed plate, and a second placement groove is formed on each opposite side of the two top plates. A second electric push rod is fixedly connected to the inner side of the second placement groove, and a movable block is movably connected to each opposite side of the two top plates. This positioning device for a bench drill can clamp and fix the position of the workpiece, thereby facilitating workpiece positioning by the user.

[0004] See Figure 4 As shown, existing workpiece positioning technologies for drilling machines mostly use screw-type clamps. These clamps have significant technical limitations: their installation position on the drilling machine is fixed and singular, making it difficult to flexibly adjust the spatial position of the positioning device relative to the drilling machine. Consequently, the clamping position of the workpiece on the drilling machine cannot be changed as needed, limiting the adaptability of workpieces of different specifications and sizes and making it difficult to meet the diverse positioning accuracy requirements of drilling. Utility Model Content

[0005] Existing drilling machine workpiece positioning technologies often employ screw-type clamps, which have a fixed and singular installation position on the drilling machine. This makes it difficult to flexibly adjust the spatial position of the positioning device relative to the drilling machine, thus limiting the adaptability of the workpiece clamping position and restricting the processing needs of workpieces of different specifications and sizes. It also fails to meet the diverse positioning accuracy requirements of drilling operations. This invention provides a drilling machine workpiece auxiliary positioning device. By adjusting the position of the second positioning bolt and the second positioning nut relative to the slot, the workpiece can be adjusted in the front-to-back direction relative to the worktable. This allows the positioning device to adapt to the clamping needs of workpieces of different lengths and contours, breaking through the limitations of traditional screw clamps on workpiece specifications. Furthermore, it can precisely adjust the relative position of the workpiece according to the specific requirements of drilling operations, meeting the high-precision positioning needs of diverse processing scenarios. The specific technical solution is as follows: A workpiece auxiliary positioning device for a drilling machine includes a worktable and further comprises: a through slot, a positioning frame, a strip groove, a first positioning bolt, a first positioning nut, a mounting plate, an adjusting groove, a second positioning bolt, and a second positioning nut. Two through slots are provided, each horizontally extending through the worktable. Two positioning frames are provided, positioned above the through slots in a front-to-back direction and arranged parallel to each other horizontally. The strip groove extends through the positioning frame. The first positioning bolt extends vertically through the inner cavity of the through slot. The first positioning nut is threaded onto the first positioning bolt and rotatably engages with the inner wall of the positioning frame. The mounting plate is mounted on the positioning frame. Multiple adjusting grooves are provided, symmetrically arranged on the mounting plate. The second positioning bolt extends vertically through the inner cavity of the adjusting groove. The second positioning nut is threaded onto the second positioning bolt and rotatably engages with the upper surface of the mounting plate.

[0006] In the above technical solution, the spacing between two adjacent adjustment slots is the same.

[0007] In the above technical solution, the mounting plate is arranged perpendicularly to the positioning frame.

[0008] In the above technical solution, the cross-sectional shape of the positioning frame is set to U-shape.

[0009] In the above technical solution, the mounting plate is provided with a clamping assembly, which includes: a first positioning platform, a first positioning groove, a second positioning platform and a second positioning groove. The first positioning platform is fixed and vertically mounted on the mounting plate; the first positioning groove is formed on the first positioning platform; the second positioning platform is movably mounted on the mounting plate in the horizontal direction; and the second positioning groove is formed on the second positioning platform.

[0010] In the above technical solution, the first positioning groove and the second positioning groove have the same shape.

[0011] In the above technical solution, a workpiece is positioned between the first positioning groove and the second positioning groove.

[0012] In the above technical solution, the clamping assembly further includes: a support arm and a lead screw, the support arm being fixedly and vertically mounted on the mounting plate; the lead screw threaded through the outer wall of the support arm in a horizontal direction, and the lead screw being rotatably connected to the right side wall of the second positioning table.

[0013] In the above technical solution, the clamping assembly further includes: a movable plate, a sliding seat, and a sliding ram. The movable plate is fixedly installed on the bottom end of the second positioning platform. Two sliding seats are provided, and the two sliding seats are respectively installed on the front and rear sides of the bottom end of the movable plate. The sliding ram is fixedly installed on the mounting plate in the horizontal direction, and the sliding seat is slidably sleeved on the sliding ram.

[0014] The auxiliary positioning device for drilling machine workpieces of this utility model has the following advantages compared with the prior art: I. Existing workpiece positioning technologies for drilling machines mostly employ screw-type clamps, whose fixed installation positions on the drilling machine make it difficult to flexibly adjust the spatial position of the positioning device relative to the drilling machine. This results in the workpiece's clamping position on the drilling machine being unable to be changed as needed, limiting the adaptability of workpieces of different specifications and sizes and failing to meet the diverse positioning accuracy requirements of drilling processing. This utility model addresses the problem that by adjusting the position of the second positioning bolt and the second positioning nut relative to the strip groove, the workpiece can be adjusted in the front-to-back direction relative to the worktable. This allows the positioning device to adapt to the clamping requirements of workpieces of different lengths and contours, breaking through the limitations of traditional screw clamps on workpiece specifications. Furthermore, it can precisely adjust the relative position of the workpiece according to the specific requirements of drilling processing, meeting the high-precision positioning needs of diverse processing scenarios. II. This utility model achieves equidistant displacement adjustment of the workpiece in the front-back direction by fixing the relative position of the second positioning bolt and the second positioning nut and using the connection structure of multiple equally spaced adjustment grooves with the second positioning bolt. This setting can meet the processing requirements of equidistant holes in the front-back direction of the workpiece, support the same equipment to adapt to different types of workpieces, effectively reduce the frequency of tooling changes, and reduce the processing cost and time loss of multi-specification workpieces. Third, this utility model integrates two adjustment methods to build a dual-mode collaborative mechanism of continuous adjustment of the workpiece's front and rear directions and equidistant graded adjustment. By dynamically switching between the two adjustment modes, the workpiece's position parameters can be steplessly finely controlled or equidistantly stepped adjusted according to the processing requirements, accurately adapting to the complex and ever-changing processing conditions. In summary, this invention overcomes the limitations of traditional screw clamps on workpiece specifications by adjusting the position of the second positioning bolt and the second positioning nut relative to the strip groove. It can adapt to the clamping requirements of workpieces of different lengths and contours, accurately meeting the high-precision positioning requirements of diverse processing scenarios. By utilizing the connection structure between multiple equally spaced adjustment grooves and the second positioning bolt, equidistant displacement adjustment is achieved, meeting the processing requirements of equidistant holes, reducing the frequency of tooling changes, and lowering processing costs and time losses. The integration of two adjustment methods forms a dual-mode collaborative mechanism, supporting dynamic switching between stepless fine control and equidistant step adjustment. It can accurately adapt to complex and ever-changing processing conditions, greatly improving the process applicability and flexible manufacturing level of the equipment. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the workbench; Figure 2 This is a schematic diagram of the regulating groove; Figure 3 This is a schematic diagram of the strip groove structure; Figure 4 This is a structural diagram of existing screw-type clamps on the market; Figures 1 to 4 In the middle, 1. Workbench, 2. Through slot, 3. Positioning frame, 4. Strip slot, 5. First positioning bolt, 6. First positioning nut, 7. Mounting plate, 8. Adjustment slot, 9. Second positioning bolt, 10. Second positioning nut, 11. First positioning platform, 12. First positioning slot, 13. Slide block, 14. Sliding seat, 15. Moving plate, 16. Second positioning platform, 17. Second positioning slot, 18. Support arm, 19. Lead screw, 20. Extension platform, 21. Cylinder, 22. Mounting plate, 23. Drill bit, 24. Workpiece. Detailed Implementation

[0016] The following are specific implementation cases and appendices. Figures 1 to 4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0017] A workpiece auxiliary positioning device for a drilling machine includes a worktable 1, and further includes: a through groove 2, a positioning frame 3, a strip groove 4, a first positioning bolt 5, a first positioning nut 6, a mounting plate 7, an adjusting groove 8, a second positioning bolt 9, and a second positioning nut 10. Two through grooves 2 are provided, and the two through grooves 2 are respectively opened horizontally through the worktable 1. Two positioning frames 3 are provided, and the two positioning frames 3 are arranged above the through grooves 2 in a front-back direction, and the two positioning frames 3 are arranged horizontally parallel to each other. The strip groove 4 is opened through the positioning frame 3. The first positioning bolt 5 is opened vertically through the inner cavity of the through groove 2. The first positioning nut 6 is threaded onto the first positioning bolt 5, and the first positioning nut 6 is rotatably fitted with the inner wall of the positioning frame 3. The mounting plate 7 is provided on the positioning frame 3. Multiple adjusting grooves 8 are provided, and the adjusting grooves 8 are symmetrically opened horizontally on the mounting plate 7. The second positioning bolt 9 is opened vertically through the inner cavity of the adjusting groove 8. The second positioning nut 10 is threaded onto the second positioning bolt 9, and the second positioning nut 10 is rotatably fitted with the upper surface of the mounting plate 7. The mounting plate 7 is set perpendicularly to the positioning frame 3; the cross-sectional shape of the positioning frame 3 is set to U-shape, which can not only meet the positioning requirements of the mounting plate 7, but also have sufficient contact area with the upper surface of the workbench 1 to ensure the stability of the position of the mounting plate 7 after positioning.

[0018] This utility model can adjust the position of the workpiece 24 relative to the worktable 1 in the front-back direction by moving the second positioning bolt 9 and the second positioning nut 10 relative to the strip groove 4. This allows the positioning device to adapt to the clamping requirements of workpieces 24 of different lengths and contours, breaking through the limitations of traditional screw clamps on workpiece specifications. It can also accurately adjust the relative position of the workpiece according to the specific requirements of drilling, meeting the high-precision positioning requirements of diverse processing scenarios.

[0019] The spacing between two adjacent adjustment slots 8 is the same. This utility model achieves equidistant displacement adjustment of workpiece 24 in the front and rear directions by fixing the relative positions of the second positioning bolt 9 and the second positioning nut 10 and using the connection structure of multiple adjustment slots 8 with equal spacing and the second positioning bolt 9. This setting can meet the processing requirements of equidistant holes in the front and rear directions of workpiece 24, support the same equipment to adapt to different types of workpieces, effectively reduce the frequency of tooling change, and reduce the processing cost and time loss of multi-specification workpieces.

[0020] A clamping assembly is provided on the mounting plate 7. The clamping assembly includes: a first positioning platform 11, a first positioning groove 12, a second positioning platform 16, and a second positioning groove 17. The first positioning platform 11 is fixed and vertically mounted on the mounting plate 7; the first positioning groove 12 is formed on the first positioning platform 11; the second positioning platform 16 is movably mounted on the mounting plate 7 in the horizontal direction; and the second positioning groove 17 is formed on the second positioning platform 16. The clamping assembly also includes: a support arm 18 and a lead screw 19. The support arm 18 is fixed and vertically mounted on the mounting plate 7; the lead screw 19 is threaded horizontally through the outer wall of the support arm 18, and the lead screw 19 is rotatably connected to the right side wall of the second positioning platform 16. The fixture assembly also includes: a movable plate 15, a sliding seat 14, and a sliding ram 13. The movable plate 15 is fixedly installed on the bottom end of the second positioning table 16. Two sliding seats 14 are provided, and the two sliding seats 14 are respectively installed on the front and rear sides of the bottom end of the movable plate 15. The sliding ram 13 is fixedly installed on the mounting plate 7 in the horizontal direction, and the sliding seat 14 is slidably sleeved on the sliding ram 13. The first positioning groove 12 and the second positioning groove 17 have the same shape. The workpiece 24 is positioned between the first positioning groove 12 and the second positioning groove 17 to ensure that the workpiece 24 can be stably positioned between the first positioning groove 12 and the second positioning groove 17.

[0021] This invention integrates two adjustment methods to construct a dual-mode collaborative mechanism of continuous adjustment of the workpiece 24 in the front and rear directions and equidistant step adjustment. By dynamically switching between the two adjustment modes, the position parameters of the workpiece 24 can be infinitely finely controlled or equidistantly stepped adjusted according to the processing requirements, accurately adapting to the complex and ever-changing processing conditions.

[0022] It is worth noting that the first positioning nut 6 and mounting plate 7, the second positioning bolt 9 and the second positioning nut 10 in this application are all commercially available bolts and nuts, which are sufficient to meet the positioning requirements of the positioning frame 3. Their models are not described or limited here. The screw 19 is a self-locking screw 19 available on the market. It can self-lock when it stops rotating and will not be affected by external forces to rotate. Its model is not described or limited here. The cylinder 21 used is a commonly used self-locking cylinder on the market. Its output end can stay at any position and lock. It adopts a commercially available model that meets the usage requirements. The model of the above-mentioned existing components is not limited or described in detail here.

[0023] The working principle of the workpiece auxiliary positioning device for a drilling machine in this embodiment is as follows: When positioning the workpiece 24, the second positioning table 16 is moved closer to the first positioning table 11 by rotating the drive screw 19, and the sliding seats 14 at both ends of the moving plate 15 are moved along the outer wall of the slide block 13, thereby achieving the clamping and positioning of the workpiece 24 in the inner cavity of the first positioning groove 12 and the second positioning groove 17. When the workpiece 24 is clamped and positioned, it is allowed to be freely adjusted in the front and back directions to adjust the workpiece 24 before processing at different positions in the front and back directions: the second positioning nut 10 is unscrewed from the corresponding second positioning bolt 9. At this time, the mounting plate 7 is released from the lock between the mounting plate 7 and the positioning frame 3. The position of the mounting plate 7 relative to the strip groove 4 is moved, that is, the relative position of the second positioning bolt 9 relative to the inner cavity of the strip groove 4 is adjusted so that it can be freely displaced in the front and back directions. After the movement, the second positioning nut 10 is re-threaded onto the second positioning bolt 9 so that it fits tightly against the upper surface of the mounting plate 7. This achieves stable locking of the mounting plate 7 relative to the strip groove 4 after displacement adjustment, that is, the positioning of the workpiece 24 after free and flexible adjustment in the front and back directions is achieved. When the workpiece 24 is clamped and positioned, it is adjusted equidistantly in the front and back directions to facilitate machining operations such as drilling holes equidistantly in the front and back directions: by unscrewing the second positioning nut 10 from the corresponding second positioning bolt 9, and lifting the mounting plate 7 upward to disengage the adjustment groove 8 from the corresponding second positioning bolt 9, the position of the mounting plate 7 is adjusted so that the adjacent adjustment groove 8 on the rear side corresponds to the top of the second positioning bolt 9, and the adjustment groove 8 in this position is moved downward to penetrate the top of the second positioning bolt 9. After adjustment, the second positioning nut 10 is rotated and re-sleeved on the second positioning bolt 9, and the second positioning nut 10 is made to fit tightly against the mounting plate 7. This achieves the forward displacement of the mounting plate 7 by the distance between the two adjustment grooves 8, and locks it after displacement. Thus, the workpiece 24 can be moved equidistantly forward by the distance between the two adjustment grooves 8, so as to perform equidistant machining on the workpiece 24. This invention overcomes the limitations of traditional screw clamps on workpiece specifications by adjusting the position of the second positioning bolt 9 and the second positioning nut 10 relative to the strip groove 4. It can adapt to the clamping requirements of workpieces of different lengths and contours, and accurately meet the high-precision positioning requirements of diverse processing scenarios. By utilizing the connection structure between multiple equally spaced adjustment grooves 8 and the second positioning bolt 9, equidistant displacement adjustment is achieved, meeting the processing requirements of equidistant holes, reducing the frequency of tooling changes, and lowering processing costs and time losses. The integration of two adjustment methods forms a dual-mode collaborative mechanism, supporting the dynamic switching between stepless fine control and equidistant step adjustment. It can accurately adapt to complex and ever-changing processing conditions, greatly improving the process applicability and flexible manufacturing level of the equipment.

[0024] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0025] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0026] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0027] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0028] Unless otherwise stated, the term "multiple" means two or more.

[0029] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A workpiece auxiliary positioning device for a drilling machine comprising a table (1), characterised in that: Also includes: Two through slots (2) are provided, and the two through slots (2) are respectively opened horizontally through the workbench (1); Positioning frame (3), two positioning frames (3) are provided, and the two positioning frames (3) are arranged above the through groove (2) in the front-back direction, and the two positioning frames (3) are arranged parallel to each other in the left and right directions; A strip groove (4) is formed through the positioning frame (3); The first positioning bolt (5) penetrates the inner cavity of the through groove (2) in a vertical direction; The first positioning nut (6) is threaded onto the first positioning bolt (5), and the first positioning nut (6) rotates and fits against the inner wall of the positioning frame (3); Mounting plate (7), which is disposed on the positioning frame (3); Adjustment groove (8), multiple adjustment grooves (8) are provided, and the adjustment grooves (8) are symmetrically opened on the mounting plate (7); The second positioning bolt (9) penetrates the inner cavity of the adjusting groove (8) in a vertical direction; The second positioning nut (10) is threaded onto the second positioning bolt (9), and the second positioning nut (10) rotates and fits against the upper surface of the mounting plate (7).

2. The workpiece auxiliary positioning device for a drilling machine according to claim 1, characterized in that: The spacing between two adjacent adjustment slots (8) is the same.

3. The workpiece auxiliary positioning device for a drilling machine according to claim 1, characterized in that: The mounting plate (7) is set perpendicular to the positioning frame (3).

4. The workpiece auxiliary positioning device for a drilling machine according to claim 1, characterized in that: The positioning frame (3) has a U-shaped cross-section.

5. The workpiece auxiliary positioning device for a drilling machine according to claim 1, characterized in that: The mounting plate (7) is provided with a clamping assembly, the clamping assembly comprising: The first positioning platform (11) is fixed and vertically installed on the mounting plate (7); The first positioning groove (12) is formed on the first positioning platform (11); The second positioning stage (16) is horizontally movable and mounted on the mounting plate (7); The second positioning groove (17) is formed on the second positioning platform (16).

6. The workpiece auxiliary positioning device for a drilling machine according to claim 5, characterized in that: The first positioning groove (12) and the second positioning groove (17) have the same shape.

7. The workpiece auxiliary positioning device for a drilling machine according to claim 5, characterized in that: A workpiece (24) is positioned between the first positioning groove (12) and the second positioning groove (17).

8. The workpiece auxiliary positioning device for a drilling machine according to claim 5, characterized in that: The clamp assembly further includes: Support arm (18), which is fixed and vertically mounted on the mounting plate (7); A lead screw (19) is threaded through the outer wall of the support arm (18) in a horizontal direction, and the lead screw (19) is rotatably connected to the right side wall of the second positioning table (16).

9. A workpiece auxiliary positioning device for a drilling machine according to claim 8, characterized in that: The clamp assembly further includes: A movable plate (15) is fixedly installed at the bottom of the second positioning platform (16); Sliding seat (14), two sliding seats (14) are provided, and the two sliding seats (14) are respectively installed on the front and rear sides of the bottom end of the moving plate (15); The slide (13) is fixedly installed on the mounting plate (7) in the horizontal direction, and the sliding seat (14) is slidably sleeved on the slide (13).

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