Drilling machine Z-axis fixing structure for PCB machining

Abstract

The utility model discloses a drilling machine Z-axis fixing structure for PCB (printed circuit board) processing, which is characterized in that a slide rail component is arranged at the lower end of a mounting plate in parallel, bases are relatively connected to the slide rail component in a sliding manner, a clamping locking block is fixedly arranged between the bases, a main shaft is arranged at the upper end of the clamping locking block, and two sides of the main shaft are fixedly connected with thrust rods; the middle of the thrust rod is arranged on the transmission assembly in a sleeving mode, the upper end of the transmission assembly is in transmission connection with the driving assembly, the inner side of the driving assembly is fixedly arranged on the mounting plate, and the clamping locking block, the main shaft and the transmission lead screw are coaxially arranged. According to the utility model, the axis of the main shaft and the stroke center line of the transmission screw rod can be collinear, so that the offset distance effect is avoided in the drilling or milling process of a PCB (Printed Circuit Board), the machining precision is improved, and meanwhile, as parts such as a sliding plate are reduced, the weight of a Z-axis moving part is reduced, the Z-axis acceleration performance is improved, and the machining efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB processing device technical field, concretely relates to a kind of Z axis fixing structure of drilling machine for PCB processing. BACKGROUND

[0002] In the drilling or milling processing of PCB, servo motor is needed to drive screw rod to push spindle to move up and down, and accurate fixing of spindle is crucial to ensure processing quality and precision, and is generally fixed by clamping. The traditional method is to install screw nut on the slide plate, and the drill spindle or milling spindle is installed on the slide plate by clamping. In order to ensure sufficient rigidity, the thickness of the slide plate is more than 50mm, which also makes the offset between the center position of the drill spindle and the center position of the screw stroke larger, affecting the processing precision.

[0003] The slide plate in the prior art is too heavy, and the offset between the center position of the spindle and the center position of the screw stroke is large, which is difficult to meet the increasing requirements of efficiency and precision in processing.

[0004] Therefore, it is necessary to design a Z-axis fixing structure of drilling machine for PCB processing, which reduces the weight of the moving parts and reduces the offset between the center position of the spindle and the center position of the transmission screw stroke, so as to improve the processing efficiency and precision of the Z-axis in the drilling or milling of PCB, which is the direction for further improvement. SUMMARY

[0005] To solve the above technical problems, the utility model provides a kind of Z-axis fixing structure of drilling machine for PCB processing, it is characterized by including mounting plate, slide rail assembly, base, clamping lock block, spindle, push rod, transmission assembly and drive assembly, the slide rail assembly is parallelly arranged at the lower end of the mounting plate, the base is slidably connected to the slide rail assembly, the clamping lock block is fixed between the bases, the spindle is arranged at the upper end of the clamping lock block, the push rod is fixedly connected to the two sides of the spindle, the transmission assembly is sleeved on the middle part of the push rod, the drive assembly is drivingly connected to the upper end of the transmission assembly, and the drive assembly is fixedly arranged on the inner side of the mounting plate.

[0006] Preferably, the transmission assembly includes a support seat, a screw nut, a transmission screw and a screw bearing, the output end of the drive assembly is drivingly connected to the transmission screw through the support seat, the screw nut is sleeved on the transmission screw, and the screw nut is fixedly connected to the push rod; the transmission screw is provided with a screw bearing at the lower end, and the screw bearing is fixedly connected to the mounting plate.

[0007] Preferably, the driving assembly comprises a servo motor, a motor fixing base and a shaft coupling, the motor fixing base is fixed on the mounting plate, the servo motor is fixed on the upper end of the motor fixing base, the output end of the servo motor is connected with the shaft coupling, and the lower end of the shaft coupling is connected with the transmission screw through the support base.

[0008] Preferably, the motor fixing base is fixedly connected with buffer springs on both sides, and the lower ends of the buffer springs are fixedly connected with the thrust rod.

[0009] Preferably, the dust suction assembly comprises a dust suction cylinder, a guide rod and a dust collector, the dust suction cylinder is fixed on the inner side of the thrust rod in a opposite manner, the output end of the dust suction cylinder is connected with the guide rod, and the lower end of the guide rod is fixedly connected with the dust collector.

[0010] Preferably, the inner side of the base is provided with an avoiding through hole, and the guide rod is arranged in the avoiding through hole.

[0011] Preferably, the clamping lock block, the main shaft and the transmission screw are coaxially arranged.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1) the utility model discloses a mounting plate lower end parallelly equipped with slide rail assembly, the slide rail assembly upper opposite slide joint has the base, the base between fixedly equipped with clamping lock block, the clamping lock block upper end is equipped with main shaft, the main shaft both sides are fixedly connected with the thrust rod, the thrust rod middle part is equipped on transmission assembly, the transmission assembly upper end is connected with the driving assembly transmission, the driving assembly inner side is fixed on the mounting plate, and the clamping lock block, the main shaft and the transmission screw are coaxially arranged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the structural schematic diagram of the utility model; Figure 1 It is the A place enlarged structural schematic diagram of the utility model;

[0016] Figure 3 It is the main view of standby state of the utility model;

[0017] Figure 4 It is the main view of working state of the utility model. DETAILED DESCRIPTION

[0018] The utility model makes further explanation to the utility model in combination with the drawings and specific implementation.

[0019] As Figures 1 to 4 As shown in a kind of PCB processing drilling machine Z axis fixed structure, including mounting plate 1, slide rail assembly 2, base 3, embrace and clamp lock block 4, main shaft 5, push rod 6, buffer spring 7, drive assembly 8, transmission assembly 9, servo motor 801, motor fixed seat 802, shaft coupling 803, support seat 901, lead screw nut 902, transmission lead screw 903, lead screw bearing 904, dust absorption cylinder 10, guide rod 11 and dust collector 12.

[0020] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes, and cannot be understood as indicative or implied relative importance.

[0021] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] As Figures 1 to 4 As shown in the figure, the lower end of mounting plate 1 is provided with slide rail assembly 2 in parallel, slide rail assembly 2 is relatively slidably connected with base 3, embrace and clamp lock block 4 is fixedly arranged between base 3, main shaft 5 is arranged at the upper end of embrace and clamp lock block 4, push rod 6 is fixedly connected to the two sides of main shaft 5, push rod 6 is sleeved on transmission assembly 9 in the middle, transmission assembly 9 is in transmission connection with drive assembly 8 at the upper end, drive assembly 8 is fixedly arranged on the inner side of mounting plate 1. Embrace and clamp lock block 4, main shaft 5 and transmission lead screw 903 are coaxially arranged. Because the force arm between main shaft 5 and transmission lead screw 903 is zero, main shaft 5 and transmission lead screw 903 are in the structure of upper and lower concentric circles, so that the nodding phenomenon of main shaft 5 in the previous processing process is excluded, and the processing quality is improved.

[0023] The transmission assembly 9 comprises a support seat 901, a screw nut 902, a transmission screw 903 and a screw bearing 904, the output end of the driving assembly 8 is in transmission connection with the transmission screw 903 through the support seat 901, the screw nut 902 is sleeved on the transmission screw 903, and the screw nut 902 is fixedly connected with the thrust rod 6; the lower end of the transmission screw 903 is provided with the screw bearing 904, the screw bearing 904 is fixedly connected with the mounting plate 1, and the screw bearing 904 is arranged, so that the spindle 5 will not be inclined in front, back, left and right directions during work, and the overall machining precision is improved.

[0024] The driving assembly 8 comprises a servo motor 801, a motor fixing seat 802 and a shaft coupling 803, the motor fixing seat 802 is fixedly arranged on the mounting plate 1, the servo motor 801 is fixedly arranged at the upper end of the motor fixing seat 802, the output end of the servo motor 801 is connected with the shaft coupling 803, and the lower end of the shaft coupling 803 is connected with the transmission screw 903 through the support seat 901.

[0025] The motor fixing seat 802 is fixedly connected with the upper end of the buffer spring 7, and the lower end of the buffer spring 7 is fixedly connected with the thrust rod 6. The buffer spring 7 is used for providing buffer protection for the spindle 5 and the thrust rod 6 during work.

[0026] The dust suction assembly moves synchronously with the base 3, and the dust suction assembly comprises a dust suction cylinder 10, a guide rod 11 and a dust collector 12. The dust suction cylinder 10 is fixedly arranged on the inner side of the thrust rod 6, the output end of the dust suction cylinder 10 is connected with the guide rod 11, the inner side of the base 3 is provided with an avoiding through hole, and the guide rod 11 is arranged in the avoiding through hole. The lower end of the guide rod 11 is fixedly connected with the dust collector 12, and the dust generated in the machining process of the spindle 5 on the PCB is sucked by the dust collector 12.

[0027] The working principle of the utility model is as follows:

[0028] The servo motor 801 rotates clockwise to drive the transmission screw 903 to rotate through the shaft coupling 803, so that the screw nut 902 moves downward to push the thrust rod 6 to move downward, so that the spindle 5 moves to the drilling position, and vice versa, the servo motor 801 rotates counterclockwise to drive the spindle 5 to move upward.

[0029] The utility model can make the axis of the spindle 5 and the stroke center line of the transmission screw 903 be in the collinear position, so that the machining process of drilling or milling the PCB is not affected by the offset, and the machining precision is improved. At the same time, since the slide plate and other parts are reduced, the weight of the Z-axis moving part is reduced, the Z-axis acceleration performance is improved, and the machining efficiency is improved. After reducing the weight, the acceleration during machining movement can be improved, the production efficiency is improved, and the continuity and stability of production are ensured.

[0030] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the right scope of the utility model, therefore, the modification, equivalent change, improvement and the like made according to the utility model patent application scope still belong to the range covered by the utility model.

Claims

1. A Z-axis fixing structure of a drill for PCB processing, characterized by: The utility model provides a kind of automatic dust collection and locking device, including mounting plate (1), slide rail assembly (2), pedestal (3), embrace and lock block (4), main shaft (5), push rod (6), transmission assembly (9) and drive assembly (8), the lower end of the mounting plate (1) is provided with slide rail assembly (2) in parallel, the slide rail assembly (2) is oppositely slidably connected with pedestal (3), the pedestal (3) is fixed with embrace and lock block (4) between, the upper end of the embrace and lock block (4) is provided with main shaft (5), the main shaft (5) is fixedly connected with push rod (6) on both sides, the push rod (6) middle part is sleeved on transmission assembly (9), the upper end of the transmission assembly (9) is transmissionally connected with drive assembly (8), the inside of the drive assembly (8) is fixed on the mounting plate (1).

2. The Z-axis fixing structure of a PCB drilling machine according to claim 1, characterized in that: The transmission assembly (9) includes support seat (901), screw nut (902), transmission screw (903) and screw bearing (904), the output end of the drive assembly (8) is transmissionally connected with transmission screw (903) by support seat (901), the transmission screw (903) is sleeved with screw nut (902), and the screw nut (902) is fixedly connected with the push rod (6); the lower end of the transmission screw (903) is provided with screw bearing (904), and the screw bearing (904) is fixedly connected with the mounting plate (1).

3. The Z-axis fixing structure of a PCB drilling machine according to claim 2, characterized in that: The drive assembly (8) includes servo motor (801), motor fixing seat (802) and shaft coupling (803), the motor fixing seat (802) is fixed on the mounting plate (1), the upper end of the motor fixing seat (802) is fixedly provided with servo motor (801), the output end of the servo motor (801) is connected with shaft coupling (803), and the lower end of the shaft coupling (803) is connected with transmission screw (903) by the support seat (901).

4. The Z-axis fixing structure of a PCB drilling machine according to claim 3, characterized in that: The both sides of the motor fixing seat (802) are fixedly connected with the upper end of buffer spring (7), and the lower end of the buffer spring (7) is fixedly connected with the push rod (6).

5. The Z-axis fixing structure of a PCB drilling machine according to claim 3 or 4, characterized in that: It also includes a dust collection assembly, the dust collection assembly includes dust collection cylinder (10), guide rod (11) and dust collector (12), the inside of the push rod (6) is oppositely fixed with dust collection cylinder (10), the output end of the dust collection cylinder (10) is connected with guide rod (11), and the lower end of the guide rod (11) is fixedly connected with dust collector (12).

6. The Z-axis fixing structure of a PCB drilling machine according to claim 5, characterized in that: The inside of the pedestal (3) is provided with an avoiding through hole, and the guide rod (11) is arranged in the avoiding through hole.

7. The Z-axis fixing structure of a PCB drilling machine according to claim 5, characterized in that: The embrace and lock block (4), main shaft (5) and transmission screw (903) are coaxially arranged.

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