Machine tool presser foot

Abstract

The utility model belongs to the technical field of circuit board processing equipment, and discloses a machine tool presser foot which comprises a base and a plurality of clamping mechanisms which are evenly arranged in the circumferential direction of the base and used for clamping brushes. The clamping mechanism comprises a clamping piece and a driving piece; the clamping piece is movably arranged on the base, a driving hole is formed in the clamping piece, and a reset piece is arranged between the clamping piece and the base; the driving piece is movably arranged on the base in the axial direction of the base, and the driving piece is matched with the driving hole so as to drive the clamping piece to slide in the radial direction of the base. The brush replacing device can achieve rapid and automatic brush replacing, manual operation is not needed, and the efficiency of the manufacturing process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board processing equipment, in particular to a machine tool presser foot. Background Art

[0002] In the field of printed circuit board processing, the corresponding processing equipment needs to replace the broken drill presser foot brush during operation, and the replacement is usually done manually, which not only requires standby but also requires tools, thus greatly limiting the efficiency of the manufacturing process. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a machine tool presser foot, which can realize fast and automatic brush replacement without manual operation, and is conducive to improving the efficiency of the manufacturing process.

[0004] The specific technical solution of the utility model is as follows:

[0005] A machine tool presser foot, comprising:

[0006] a base; and

[0007] A plurality of clamping mechanisms are evenly arranged along the circumference of the base and are used to clamp the brushes, and the clamping mechanisms include:

[0008] A clamping member, wherein the clamping member is movably disposed on the base, a driving hole is disposed on the clamping member, and a reset member is disposed between the clamping member and the base; and

[0009] The driving member is movably arranged on the base along the axial direction of the base, and the driving member cooperates with the driving hole to drive the clamping member to slide along the radial direction of the base.

[0010] The clamping member is a device for clamping the brush. Since it can move relative to the base, when the driving member acts on the clamping member, it opens and the brush can be loosened. When the driving member unloads the force, the clamping member is reset under the action of the reset member, thereby meeting the clamping requirement for the brush. This process can quickly realize the removal and placement of the brush without human intervention, thereby effectively improving the efficiency of the manufacturing process.

[0011] Preferably, a guide member is provided between the base and the clamping member.

[0012] The guide member can provide a positioning guide for the sliding of the clamping member relative to the base, thereby improving the movement stability of the clamping member.

[0013] Preferably, the base is provided with a baffle plate detachably connected thereto, the clamping member slides between the baffle plate and the base, and the baffle plate is provided with a through hole for the clamping member to pass through;

[0014] The reset member is arranged between the clamping member and the baffle.

[0015] The setting of the baffle is conducive to the removal and installation of the clamping member, that is, after removing the baffle, the clamping member can be quickly installed on the base, and after the installation is completed, the baffle can be installed on the base, so the maintenance of the clamping member can be effectively achieved.

[0016] Preferably, the clamping member is provided with a positioning hole for installing the resetting member.

[0017] The structure is simple and practical, and the reset member can be well positioned and installed between the clamping member and the baffle, thereby meeting actual use requirements.

[0018] Preferably, the clamping mechanism further comprises:

[0019] A cylinder seat, the cylinder seat is connected to the base;

[0020] Wherein, the driving member is configured as a piston arranged in a cylinder seat.

[0021] The cylinder seat is connected to an external air supply device, and air is supplied through the external air supply device to drive the piston to move, so that the driving member configured as a piston can produce driving cooperation with the clamping member, thereby achieving the clamping or loosening requirements for the brush.

[0022] Preferably, the free end of the driving member is in a conical structure.

[0023] Since the free end of the driving member is in a conical structure, it can achieve a good sliding fit with the driving hole. That is to say, the free end of the driving member has a slope, and the slope cooperates with the driving hole in its extension direction, so that when the driving member moves axially along the base, the axial movement is converted into radial movement of the driving member along the base, thereby better meeting the driving requirements of the driving member and making the process smoother.

[0024] Preferably, a positioning groove is provided on the outer side of the base, and a positioning ridge cooperating with the positioning groove is provided on the cylinder seat.

[0025] The arrangement of the positioning groove and the positioning ridge can realize rapid positioning and assembly between the cylinder seat and the base, thereby improving the efficiency of the assembly process.

[0026] Preferably, the positioning groove includes groove 1 and groove 2 where two axes intersect.

[0027] Groove 1 and groove 2 determine the positioning assembly surface of the cylinder seat, which can effectively improve the assembly stability between the cylinder seat and the base.

[0028] Preferably, a roller for cooperating with the driving member is arranged in the driving hole.

[0029] When the driving member contacts the roller, the roller can rotate around its own axis, thereby providing auxiliary drive for the driving member, thereby effectively reducing the movement friction between the driving member and the clamping member. In other words, the roller effectively reduces the movement interference between the driving member and the clamping member, and can better achieve the clamping or loosening of the brush, thereby improving working efficiency.

[0030] Preferably, a mounting groove for fitting on the end of the roller is provided in the driving hole.

[0031] The installation groove can realize the positioning installation of the roller, making the installation process of the roller simple, quick and easy to realize.

[0032] Compared with the prior art, the utility model acts on the clamping member through a driving member, and uses a reset member to drive the clamping member to reset when the driving member unloads force, thereby realizing the rapid replacement of the presser foot brush and solving the problem of low processing efficiency caused by stopping the machine to replace the brush. The utility model has a simple structure, is easy to assemble, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of an embodiment of the utility model;

[0034] Figure 2 for Figure 1 sectional view of;

[0035] Figure 3 for Figure 1 Exploded diagram.

[0036] In the figure: 1-base; 2-clamping member; 3-driving member; 4-driving hole; 5-resetting member; 6-brush; 7-slide groove; 8-sliding block; 9-positioning hole; 10-cylinder seat; 11-roller; 12-mounting groove; 13-positioning groove; 14-positioning ridge; 15-stopper; 16-through hole. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0038] like Figure 1 to Figure 3 As shown, a machine tool presser foot comprises a base 1, and a plurality of clamping mechanisms uniformly arranged along the circumference of the base 1 and used for clamping a brush 6; the clamping mechanism comprises a clamping member 2 and a driving member 3; the clamping member 2 is movably arranged on the base 1, a driving hole 4 is arranged on the clamping member 2, and a reset member 5 is arranged between the clamping member 2 and the base 1; the driving member 3 is movably arranged on the base 1 along the axial direction of the base 1, and the driving member 3 cooperates with the driving hole 4 to drive the clamping member 2 to slide radially along the base 1.

[0039] In the present embodiment, the presser foot of the machine tool can realize positioning locking and loosening when the brush 6 is replaced under the action of the clamping mechanism, so as to effectively prevent positioning errors when the brush 6 is replaced; it should be noted that the presser foot of the machine tool of the present embodiment is arranged on the processing equipment of the printed circuit board PCB, so as to save the processing time of the processing equipment and improve the processing efficiency. It is known that the above-mentioned processing equipment can be a CNC machine tool or an ordinary machine tool. In addition, it should be noted that the presser foot of the machine tool can also be equipped on other plate processing equipment besides the PCB board. Specifically, the clamping mechanism of the present embodiment has at least two, and at least two clamping mechanisms are evenly arranged along the circumference of the base 1. In the general state of clamping the brush 6, the clamping member 2 is pressed against the brush 6 through the deformation force of the reset member 5, so as to achieve the clamping of the brush 6. When the brush 6 needs to be replaced, the driving member 3 moves axially along the base 1, and the driving hole 4 converts the axial movement of the driving member 3 along the base 1 into the radial movement of the clamping member 2 along the base 1, so that the multiple clamping members 2 move away from each other, thereby loosening the brush 6. When the driving member 3 moves in the reverse direction of the above direction, the reset member 5 applies the deformation force to the clamping member 2 again, so as to achieve the reset of the clamping member 2 to clamp the new brush 6. In this embodiment, the direction in which the driving member 3 drives the clamping member 2 to move can be from top to bottom, and in some other embodiments, it can also be achieved from bottom to top. Further, a guide member is provided between the base 1 and the clamping member 2. Specifically, the guide member includes a slide groove 7 provided on the base 1, and a slider 8 configured on the clamping member 2, and the slider 8 and the slide groove 7 are slidably matched. In this embodiment, the slider 8 is actually a protrusion formed on both sides of the clamping member 2 by the clamping member 2, and the connecting line between the two protrusions is perpendicular to the movement direction of the clamping member 2.

[0040] In order to better use this embodiment and realize the quick disassembly and assembly of the clamping member 2, the base 1 is provided with a baffle plate detachably connected thereto, the clamping member 2 slides between the baffle plate and the base 1, and the baffle plate is provided with a through hole 16 for the clamping member 2 to pass through; the reset member 5 is arranged between the clamping member 2 and the baffle plate. The baffle plate includes a first surface body and a second surface body, the plane where the first surface body is located is perpendicular to the plane where the second surface body is located, the first surface body can be detachably connected with the base 1, after the baffle plate is assembled, the second surface body can realize the bearing of the clamping member 2, so that the clamping member 2 is in sliding contact with the second surface body while sliding along the slide groove 7, thereby ensuring the movement stability of the clamping member 2.

[0041] In this embodiment, the clamping member 2 is provided with a positioning hole 9 for installing the reset member 5. In this embodiment, a plurality of positioning holes 9 are arranged side by side, so that a plurality of reset members 5 can be assembled, thereby making the reset force that pushes the clamping member 2 to move act evenly on the clamping member 2, thereby better satisfying the reset effect of the clamping member 2. In this embodiment, the reset member 5 is a cylindrical spring.

[0042] like Figure 1 to Figure 3 As shown, in this embodiment, the clamping mechanism also includes a cylinder seat 10, and the cylinder seat 10 is connected to the base 1; the driving member 3 is configured as a piston arranged in the cylinder seat 10. The cylinder seat 10 is connected to an external air supply device. In this embodiment, the driving member 3 divides the cylinder seat 10 into cavity 1 and cavity 2. When the air supply device supplies air, the space of cavity 1 is expanded and the space of cavity 2 is reduced. At this time, the driving member 3 moves downward, and vice versa. Move upward. Further, the free end of the driving member 3 is a conical structure. A roller 11 for matching the driving member 3 is arranged in the driving hole 4. In this embodiment, the free end of the driving member 3 cooperates with the roller 11. When the driving member 3 moves up and down relative to the base 1, the driving member 3 can drive the roller 11 to rotate around its own axis, effectively reducing the friction between the driving member 3 and the clamping member 2, thereby effectively improving the movement efficiency of the clamping member 2. In some other embodiments, the roller 11 cannot rotate around its own axis, but when the clamp 2 and the roller 11 are in contact, they are in point contact or line contact, so the friction between the clamp 2 and the drive member 3 can be well reduced. Furthermore, a mounting groove 12 for fitting in the end of the roller 11 is provided in the drive hole 4. The mounting groove 12 is provided on the clamp 2, and is located at the end of the drive hole 4 away from the center line of the base 1. The two ends of the roller 11 are placed in two opposite mounting grooves 12, so as to achieve the purpose of rapid assembly, and at the same time, the stability of the roller 11 can be improved. It should be noted that in this embodiment, the free end of the clamp 2 is configured as a cylindrical surface, thereby effectively eliminating the fitting gap, thereby achieving better line of sight and precise positioning. Similarly, the fitting between the drive member 3 and the drive hole 4 is not repeated here.

[0043] like Figure 3As shown, in this embodiment, a positioning groove 13 is provided on the outer side of the base 1, and the cylinder seat 10 is provided with a positioning ridge 14 that cooperates with the positioning groove 13. Specifically, the positioning groove 13 includes a groove 1 and a groove 2 with two intersecting axes. It can be seen that the positioning ridge 14 includes a ridge 1 and a ridge 2 that cooperate with the groove 1 and the groove 2 respectively. In this embodiment, the groove 1 and the groove 2 are two vertical and connected grooves, and the ridge 1 and the ridge 2 are separated from each other. In the specific assembly process, after the ridge 1 is aligned with the groove 1, it slides downward, that is, during the sliding process, the ridge 2 can be embedded in the groove 2, thereby completing the positioning between the cylinder seat 10 and the base 1. This setting greatly simplifies the alignment process of the assembly and effectively improves the efficiency of the assembly process.

[0044] Therefore, in this embodiment, two cylinder seats 10 are respectively installed on both sides of the base 1. Under the action of compressed air, the driving members 3 on both sides move downward, respectively drive the two clamping members 2 to move in the direction away from each other, loosen the brush 6, and thus release the brush 6; when the driving members 3 on both sides move upward, the two driving members 3 are respectively separated from the two clamping members 2, and the driving force of the corresponding reset member 5 drives the two clamping members 2 to move simultaneously in the direction of approaching each other, thereby tightly clamping the brush 6. Through the above reciprocating motion, the presser foot brush 6 can be quickly and automatically replaced. In this way, there is no need to stop the machine to replace the brush 6, and the brush 6 can be automatically and quickly replaced under program control, thereby effectively improving production efficiency.

[0045] Therefore, the mechanical locking method of this embodiment, on the basis of the up and down movement of the driving member 3, satisfies the radial reciprocating movement of the clamping member 2 along the base 1, thereby achieving the function of locking or releasing the brush 6; this embodiment is simple to process, easy to assemble, and can effectively improve the overall efficiency.

[0046] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A machine tool presser foot, characterized in that: include: Pedestal; as well as A plurality of clamping mechanisms are evenly arranged along the circumference of the base and are used to clamp the brushes, and the clamping mechanisms include: A clamping member, wherein the clamping member is movably arranged on the base, a driving hole is arranged on the clamping member, and a reset member is arranged between the clamping member and the base; as well as The driving member is movably arranged on the base along the axial direction of the base, and the driving member cooperates with the driving hole to drive the clamping member to slide along the radial direction of the base.

2. A machine tool presser foot as claimed in claim 1, characterized in that: A guide component is arranged between the base and the clamping member.

3. A machine tool presser foot as claimed in claim 1, characterized in that: The base is provided with a baffle plate detachably connected thereto, the clamping member slides between the baffle plate and the base, and the baffle plate is provided with a through hole for the clamping member to pass through; The reset member is arranged between the clamping member and the baffle.

4. A machine tool presser foot as claimed in claim 1, characterized in that: The clamping member is provided with a positioning hole for installing a resetting member.

5. A machine tool presser foot as claimed in claim 1, characterized in that: The clamping mechanism also includes: A cylinder seat, the cylinder seat is connected to the base; Wherein, the driving member is configured as a piston arranged in a cylinder seat.

6. A machine tool presser foot as claimed in claim 5, characterized in that: The free end of the driving member is in a conical structure.

7. A machine tool presser foot as claimed in claim 5, characterized in that: The outer side of the base is provided with a positioning groove, and the cylinder seat is provided with a positioning convex ridge matched with the positioning groove.

8. A machine tool presser foot as claimed in claim 7, characterized in that: The positioning groove includes a groove 1 and a groove 2 where two axes intersect.

9. A machine tool presser foot as claimed in claim 1 or 6, characterized in that: A roller for cooperating with the driving member is arranged in the driving hole.

10. A machine tool presser foot as claimed in claim 9, characterized in that: The driving hole is provided with a mounting groove for fitting on the end of the roller.

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