PCB drilling machine tool sleeve with error compensation function

Abstract

This utility model relates to the field of PCB drilling machine tool holder technology, and in particular to a PCB drilling machine tool holder with error compensation function, including a mounting assembly, a tool holder assembly, and an error compensation assembly. The tool holder assembly includes a receiving cylinder and a housing; the error compensation assembly includes an O-ring and a spring. This device realizes the adaptive adjustment capability of the PCB drilling machine tool holder assembly. The O-ring design on the housing allows for compression movement, providing a movable margin and lateral buffering capability during tool holder use. Combined with the longitudinal buffering force provided by the spring, it helps the tool holder adapt to different pressures during operation, effectively reducing the possibility of tool jamming or falling off. The arc-shaped block clamps and releases, effectively protecting the tool. Overall, it achieves reliable stability of the PCB drilling machine tool holder and reduces wear.

Description

Technical Field

[0001] This utility model relates to the field of PCB drilling machine tool holder technology, and in particular to a PCB drilling machine tool holder with error compensation function. Background Technology

[0002] In an automatic tool changer system for PCB drilling machines, the tool holder is a precision component. Currently, the core function of the tool holder is to safely and accurately store the tool, cooperating with the machine to complete the tool change operation. Its performance directly affects the success rate of tool changes, machining accuracy, and efficiency of the drilling machine. Most current tool holders are of a single, integral structure, with a simple cylindrical housing. To enhance wear resistance, the core of the tool holder is typically made of an alloy. The tool holder generates clamping force by tightening a mechanical pressure cap.

[0003] In actual high-speed operation, due to factors such as mechanical vibration, thermal deformation, or deviations in repeatability accuracy, a slight positional error inevitably exists between the spindle and the tool holder during the spindle's descent. Existing rigid tool holders cannot compensate for or absorb such errors, leading to difficulties in smoothly guiding the tool into the tool holder. This can easily result in the tool colliding with the tool holder opening (i.e., "tool ejection"), tool slippage, or jamming. This not only reduces tool changing efficiency and success rate but may also damage expensive tools and the spindle, increasing equipment maintenance costs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the problem to be solved by this utility model is the instability and detachment of the PCB drilling machine tool sleeve.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a PCB drilling machine tool holder with error compensation function, including a mounting assembly, including a sealing plate and a tool holder, wherein the sealing plate is disposed above the tool holder; a tool holder assembly, disposed between the tool holder and the sealing plate, wherein a receiving cylinder is disposed inside; and an error compensation assembly, including an O-ring and a spring, wherein the O-ring is disposed between the tool holder assembly and the mounting assembly, and the spring is disposed at one end of the receiving cylinder.

[0008] As a preferred embodiment of the PCB drilling machine tool holder with error compensation function described in this utility model, the tool holder assembly further includes a rubber ring, a housing, and a retaining ring. The housing is located outside the receiving cylinder, the rubber ring is located between the receiving cylinder and the end face of the housing, and the retaining ring is located at the bottom of the housing and connected to one end of the spring.

[0009] As a preferred embodiment of the PCB drilling machine tool sleeve with error compensation function described in this utility model, wherein: an arc-shaped block is provided at the end of the receiving cylinder away from the retaining ring; and a chamfer is provided at the end of the arc-shaped block away from the receiving cylinder.

[0010] As a preferred embodiment of the PCB drilling machine tool sleeve with error compensation function described in this utility model, the outer side of the housing is provided with a mounting groove, and the O-ring is disposed in the mounting groove.

[0011] As a preferred embodiment of the PCB drilling machine tool sleeve with error compensation function described in this utility model, the contour of the O-ring is adapted to the shape of the mounting groove.

[0012] As a preferred embodiment of the PCB drilling machine tool holder with error compensation function described in this utility model, wherein: the tool holder is provided with screw holes, which are consistent with the screw hole specifications on the sealing plate.

[0013] The beneficial effects of this invention are as follows: This device realizes the adaptive adjustment capability of the PCB drilling machine tool holder assembly. The O-ring design on the housing allows for compression movement, providing a movable margin for the tool holder during use and offering lateral buffering capability. Combined with the longitudinal buffering force provided by the inner spring, it helps the tool holder adapt to different pressures during operation, effectively reducing the possibility of tool jamming or falling off. The arc-shaped block clamps and releases, effectively protecting the tool. Overall, this invention achieves reliable stability of the PCB drilling machine tool holder and reduces wear. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall blade sheath assembly of this utility model;

[0018] Figure 4 This is an exploded view of the blade sheath assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the housing of this utility model;

[0020] Figure 6 This is a schematic diagram of the housing cylinder of this utility model. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0024] Example 1, referring to Figures 1-6 This is the first embodiment of the present invention, which provides a PCB drilling machine tool holder with error compensation function. The PCB drilling machine tool holder includes: a mounting assembly 1, including a sealing plate 11 and a tool holder 12, with the sealing plate 11 disposed above the tool holder 12; a tool holder assembly 2, disposed between the tool holder 12 and the sealing plate 11, with a receiving cylinder 21 disposed inside; an error compensation assembly 3, including an O-ring 31 and a spring 32, with the O-ring 31 disposed between the tool holder assembly 2 and the mounting assembly 1, and the spring 32 disposed at one end of the receiving cylinder 21; the tool holder assembly 2 also includes a rubber ring 22 and a housing 23. A retaining ring 24 and a housing 23 are located on the outside of the receiving cylinder 21. A rubber ring 22 is located between the end faces of the receiving cylinder 21 and the housing 23. The retaining ring 24 is located at the bottom of the housing 23 and is connected to one end of the spring 32. An arc-shaped block 211 is provided at the end of the receiving cylinder 21 away from the retaining ring 24. A chamfer 212 is provided at the end of the arc-shaped block 211 away from the receiving cylinder 21. An installation groove 231 is provided on the outside of the housing 23, and an O-ring 31 is located in the installation groove 231. The outline of the O-ring 31 is adapted to the shape of the installation groove 231. A screw hole is provided on the tool holder 12, which is consistent with the screw hole specification on the sealing plate 11.

[0025] The housing 21 houses the tool. When the spindle picks up and puts in the tool, the O-ring 31 provides the tool sleeve with a movable margin on the outside of the housing 23, generating a lateral buffer force. The overall offset can be adjusted according to the change of the force direction. The spring 32 set inside the housing 23 provides elasticity when the spindle picks up and puts in the tool, and at the same time plays a longitudinal adjustment role. It provides a buffer when pressing down or springing up, which can effectively reduce the wear and accuracy error caused by frictional contact.

[0026] When in use, the drilling machine spindle presses the tool down into the tool holder, the receiving cylinder 21 moves downward under pressure, compressing the spring 32 inside the housing 23. During this process, the chamfer 212 at the upper end of the receiving cylinder 21 protects the tool and ensures its smooth entry, while the arc block 211 tightens the tool. When removing the tool, the spindle releases the pressure, the spring 32 rebounds, and lifts the receiving cylinder 21 and the tool, making it easier to grasp and improving work efficiency.

[0027] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0028] Specifically, the blade sheath assembly 2 also includes a rubber ring 22, a housing 23, and a retaining ring 24. The housing 23 is located outside the receiving cylinder 21, the rubber ring 22 is located between the end faces of the receiving cylinder 21 and the housing 23, and the retaining ring 24 is located at the bottom of the housing 23 and is connected to one end of the spring 32.

[0029] The rubber ring 22 between the housing 23 and the receiving tube 21 effectively avoids rigid contact between the receiving tube 21 and the housing 23, and can also provide a buffer force for the overall structure, reducing the wear caused by friction; the retaining ring 24 is used to connect the bottom of the spring 32, fix the connection between the receiving tube 21, the spring 32 and the housing 23, and bear the pressure of the upper structure.

[0030] Specifically, an arc-shaped block 211 is provided at the end of the receiving cylinder 21 away from the retaining ring 24; a chamfer 212 is provided at the end of the arc-shaped block 211 away from the receiving cylinder 21.

[0031] The arc-shaped block 211 has four parts for fixing the tool and preventing it from falling off. There is a certain gap between its contact surface with the housing 23. The purpose is to allow for effective deformation and movement when subjected to pressure during operation, which increases the adjustment capability and makes it more stable. When placing the tool, the chamfer 212 design of the arc-shaped block 211 can make the tool placement smoother and more convenient.

[0032] Specifically, the outer side of the housing 23 is provided with a mounting groove 231, and the O-ring 31 is disposed in the mounting groove 231 on the outer side of the housing 23 and is connected to the inner side of the tool holder 12.

[0033] There are two mounting slots 231 on the outside of the housing 23, located at the upper and lower ends of the connection between the housing 23 and the tool holder 12, respectively. There are also two corresponding O-rings 31. If needed, the number of mounting slots 231 and O-rings 31 can be increased. The O-rings are made of rubber or other elastic materials, which can be compressed, providing the tool holder 12 with a movable margin and a lateral buffering capacity. They can be adjusted to adapt to different pressures, thereby making the overall structure more stable and avoiding jamming or tool ejection.

[0034] Specifically, the outline of the O-ring 31 is adapted to the shape of the mounting groove 231;

[0035] Eliminating the gap between the O-ring 31 and the mounting groove 231 can effectively improve the buffering force when in contact with the tool holder 12. When the housing 23 is modified, the size of the mounting groove 231 can be changed, and the size of the O-ring 31 can be changed to fit the mounting groove, so as to increase the contact surface and improve stability.

[0036] Specifically, the outer side of the tool holder 1 is provided with screw holes, which are consistent with the screw holes on the cover plate 11. Since the tool holder 12 itself has three screw holes for other places, the cover plate 11 is designed with three arc-shaped recesses to avoid the screw holes of the tool holder 12 itself.

[0037] The tool holder 12 and the cover plate 11 each have two screw holes. After screwing the nut into the corresponding screw hole, the position of the tool sleeve assembly 2 can be locked. The buckle can be used to replace the nut for installation as needed, which facilitates the disassembly of the tool sleeve assembly 2.

[0038] During use, the tool holder 12 and the sealing plate 11 lock the tool sleeve assembly 2, and the receiving cylinder 21 carries the tool. When placing the tool, the spring 32 is compressed downwards, and the O-ring 31 on the outside of the tool sleeve assembly 2 is compressed. When removing the tool, the spring 32 rebounds elastically, lifting the receiving cylinder 21 and the tool. Combined with the movable allowance provided by the O-ring 31, the problem of unstable tool holder of drilling machine, easy fall-off or jamming of the top tool is effectively reduced in the whole process.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A PCB drill machine tool sleeve with error compensation function, characterized in that: include, The mounting assembly (1) includes a sealing plate (11) and a tool holder (12), wherein the sealing plate (11) is disposed above the tool holder (12); The blade sheath assembly (2) is disposed between the blade holder (12) and the sealing plate (11), and a receiving tube (21) is disposed inside it; The error compensation component (3) includes an O-ring (31) and a spring (32). The O-ring (31) is disposed between the blade sleeve assembly (2) and the mounting assembly (1), and the spring (32) is disposed at one end of the receiving cylinder (21).

2. The PCB drill jig sleeve with error compensation function according to claim 1, characterized in that; The blade sheath assembly (2) also includes a rubber ring (22), a housing (23), and a retaining ring (24). The housing (23) is located outside the receiving cylinder (21). The rubber ring (22) is located between the end faces of the receiving cylinder (21) and the housing (23). The retaining ring (24) is located at the bottom of the housing (23) and is connected to one end of the spring (32).

3. The PCB drill sleeve with error compensation function according to claim 2, characterized in that: An arc-shaped block (211) is provided at the end of the receiving tube (21) away from the retaining ring (24); The arc-shaped block (211) has a chamfer (212) at the end away from the receiving cylinder (21).

4. The PCB drill sleeve with error compensation function according to claim 3, characterized in that: The outer side of the housing (23) is provided with a mounting groove (231), and the O-ring (31) is disposed in the mounting groove (231).

5. The PCB drilling machine tool holder with error compensation function as described in claim 4, characterized in that: The outline of the O-ring (31) is adapted to the shape of the mounting groove (231).

6. The PCB drilling machine tool holder with error compensation function as described in claim 5, characterized in that: The tool holder (12) is provided with screw holes, which are the same as the screw holes on the sealing plate (11).

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