CN209793889U - Small deep hole machining tool for insulating material part - Google Patents

Abstract

The utility model relates to a small BTA frock of insulating material part can include bottom plate, an at least pivot, an at least latch segment and drive arrangement, the pivot is installed through an installing support on the bottom plate, the latch segment is installed serve of pivot for the insulating material part of the small BTA of locking waiting to process, drive arrangement with the other end drive of pivot is connected, makes the insulating material part can overturn to the second machined surface from first machined surface, first machined surface with the second machined surface differs 180. The utility model discloses compact structure, in the aspect of the use, can guarantee that the position of processing is unchangeable, and the hole center of the deep hole of processing out is unanimous, avoids the aperture to appear the big-end-up condition.

Description

Small deep hole machining tool for insulating material part

Technical Field

The utility model relates to an insulating material parts machining field specifically relates to a small BTA frock of insulating material part.

Background

FR4 insulation has high mechanical and electrical properties, is moisture resistant and has a heat resistance rating of class F or class H. According to the property of FR4 insulating material, after CNC machine tool processing, it can be used in various motors, electrical appliances, switches, transformers, wires, cables, electrical instruments and radios. The main functions of the device are as follows:

(1) Insulating the conductor from other parts;

(2) Isolating charged parts having different potentials in the electrical equipment;

(3) For changing the potential gradient in the high-voltage electric field;

(4) It can ensure the required capacitance of capacitor and other electric appliances.

The development history of metal materials is long, the processing mode of the metal materials is various, and the processing mode of linear cutting can be adopted for complicated metal pieces such as micro deep holes. A micro-deep hole generally refers to a hole having a diameter of less than 5 mm and a depth of more than 1 cm. The wire cutting has the outstanding advantages of small machining allowance, high machining precision, short production period, low manufacturing cost and the like.

However, the insulating material such as FR4 is not electrically conductive and has poor thermal conductivity, and cannot be processed by a machining process such as electric discharge machining or wire cutting, and only can be processed by a drill or a milling cutter. Because the overall dimension of the insulating material part has certain error, when a common tool is used for machining, the part is turned to the other side after one side is machined, and the concentricity of the holes is difficult to ensure.

disclosure of Invention

the utility model aims at providing a small BTA frock of insulating material part to solve the problem that current frock can't keep the hole concentricity. Therefore, the utility model discloses a specific technical scheme as follows:

The utility model provides a small deep hole processing frock of insulating material part, can include bottom plate, an at least pivot, at least a latch segment and drive arrangement, the pivot is installed through a installing support on the bottom plate, the latch segment is installed on one end of pivot for the insulating material part of the small deep hole of locking treating processing, drive arrangement with the other end drive of pivot is connected, makes the insulating material part can be followed first machined surface and overturn to the second machined surface, first machined surface with the difference of second machined surface is 180.

Further, the insulating material part micro deep hole machining tool can further comprise a positioning device, and the positioning device is used for fixing the locking block at a machining position.

Furthermore, the positioning device comprises a positioning seat, a positioning pressing plate and a jacking mechanism, wherein the positioning seat is fixed on the bottom plate, the upper surface of the positioning seat is provided with a first positioning concave part for receiving the rotating shaft, the positioning pressing plate is fixed on the jacking mechanism, the lower surface of the positioning pressing plate is provided with a second positioning concave part matched with the first positioning concave part, and under the action of the jacking mechanism, the first positioning concave part and the second positioning concave part are matched to press or loosen the rotating shaft.

Still further, the jacking mechanism comprises an air cylinder, and the positioning plate is fixed on a piston rod of the air cylinder.

furthermore, the driving device is in driving connection with the rotating shaft through a mode that a gear is meshed with a rack.

furthermore, the driving device comprises a linear reciprocating mechanism for driving the rack to move between the first position and the second position, and the gear is fixedly mounted on the rotating shaft.

Specifically, linear reciprocating motion mechanism includes mounting panel, cylinder, slide rail, slider and rack connecting plate, the mounting panel perpendicular to the bottom plate, cylinder and slide rail fixed mounting be in on the mounting panel, the slider sliding joint is in on the slide rail, rack connecting plate fixed connection be in on the slider and with the piston rod drive of cylinder is connected, the rack is fixed on the rack connecting plate.

Still further, the driving device further includes first and second sensing elements and first and second stoppers, the first and second sensing elements are respectively and fixedly mounted at two ends of the rack connecting plate, the first and second stoppers are respectively and fixedly mounted on the mounting plate, and the first and second sensing elements respectively cooperate with the first and second stoppers to confirm that the rack moves to the first position or the second position.

Preferably, the first and second inductive elements are proximity switches or contact switches.

further, the number of the rotating shafts is 2.

the utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses compact structure, in the aspect of the use, can guarantee that the position of processing is unchangeable, and the hole center of the deep hole of processing out is unanimous, avoids the aperture to appear the big-end-up condition.

Drawings

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Fig. 1 is a schematic perspective view of a tooling for machining a micro deep hole of an insulating material part according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the tooling for machining a micro deep hole on the insulating material part shown in FIG. 1;

Fig. 3 is a perspective view of an insulating material part machined by using the insulating material part micro-deep-hole machining tool shown in fig. 1.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, a tooling for machining a micro deep hole on an insulating material part may include a base plate 1, at least one rotating shaft 2 (two shown), at least one locking block 3 (two shown), and a driving device 4. The base plate 1 is a rectangular plate, and may be generally machined from a steel plate. The rotating shaft 2 is mounted on the bottom plate 1 through a mounting bracket 5. Specifically, the mounting bracket 5 is fixedly mounted on the bottom plate 1, a bearing 51 is mounted in the mounting bracket 5, and the rotating shaft 2 penetrates through the bearing 51. The locking block 3 is arranged at one end of the rotating shaft 2 and used for locking the insulating material part 10 of the micro deep hole to be processed, and the driving device 4 is in driving connection with the other end of the rotating shaft 2, so that the locking block 3 can be turned over by 180 degrees. That is, the insulating material member 10 can be reversed from the first processed surface 101 to the second processed surface 102 by the driving device 4, and the first processed surface 101 is different from the second processed surface 102 by 180 °. Therefore, the tool can ensure that the machining point position is unchanged, so that the hole centers of the machined deep holes 103 are consistent (concentricity), and the situation that the hole diameter is large in size and small in size is avoided.

In the illustrated embodiment, the tooling for machining the micro deep hole in the insulating material part further comprises a positioning device 6, and the positioning device is used for fixing the locking block 3 at the machining position. Specifically, the positioning device 6 includes two positioning seats 61, a positioning pressing plate 62 and an air cylinder 63. The two positioning seats 61 are fixed to the base plate 1 at intervals (for example, by screws or welding) and have first positioning recesses 611 on the upper surface thereof for receiving the rotating shafts 2. The positioning pressure plate 62 is fixed to a piston rod 631 fixed to the cylinder 63 and has two second positioning recesses 621 on its lower surface that fit into the first positioning recesses. The cylinder 63 is mounted between the two positioning seats 61. The first positioning recess 611 and the second positioning recess 621 cooperate to press or release the rotating shaft 2. Specifically, when the piston rod 631 of the air cylinder 63 is pushed out, the positioning pressing plate 62 is jacked up to release the rotating shaft 2, and the rotating shaft 2 can rotate; when the piston rod 631 retracts, the positioning pressing plate 62 descends to press the rotating shaft 2, and the rotating shaft 2 cannot rotate.

It should be understood that the cylinder 63 may be replaced with other types of jacking mechanisms.

In the embodiment shown, the drive connection of the drive means 4 to the shaft 2 is realized by means of a gear wheel 7 engaging with a toothed rack 8. Specifically, the driving device 4 may include a mounting plate 41, a cylinder 42, a slide rail 43, a slider 44, and a rack attachment plate 45. The mounting plate 41 is vertically fixed (e.g., by screws or welding) to the base plate 1. The air cylinder 42 and the slide rail 43 are fixedly mounted on the mounting plate 41. The slider 43 is slidably engaged on the slide rail 41. The rack connecting plate 45 is fixedly connected to the slider 43 and is drivingly connected to the piston rod 421 of the air cylinder 42 (e.g., via the connecting member 46). The rack 8 is fixed on the rack connecting plate 45; the gear 7 is fixedly arranged on the rotating shaft 3. The air cylinder 42 drives the rack 8 to move from the first position to the second position, and further drives the insulating material part 10 to overturn from the first processing surface 101 to the second processing surface 102; and vice versa.

It will be appreciated that the drive means 4 may also employ other forms of linear reciprocating motion (e.g. electrical or hydraulic). Alternatively, the driving device 4 may be a servo motor, and the rotating shaft 2 is drivingly connected to an output shaft of the servo motor.

In addition, the driving device 4 may further include first and second sensing elements 47a, 47b and first and second stoppers 48a, 48b, the first and second sensing elements 47a, 47b being fixedly installed at both ends of the rack attachment plate 45, respectively. First and second stops 48a, 48b, respectively, are fixedly mounted on the mounting plate. The first and second inductive elements 47a, 47b cooperate with said first and second stops 48a, 48b, respectively, to confirm that the rack 8 is moved to said first position or to said second position, i.e. that the piece of insulating material 10 is at the first machined face or at the second machined face. It should be understood that the mounting positions of the first and second sensing elements and the first and second stops may be interchanged.

Preferably, the first and second inductive elements 47a, 47b are proximity switches or contact switches. For example, the first and second inductive elements 47a, 47b may be piezoelectric contact switches or hall-type proximity switches.

Now, the working process of the present invention will be briefly described. When the cylinder 63 loosens the positioning pressing plate 62, the cylinder 42 pushes the connecting piece 46 to drive the sliding block 44 to slide, the rack 8 moves along with the sliding block 44 to drive the gear 7 to rotate, and further drive the rotating shaft 2 and the locking block 3 fixed on the rotating shaft 2 to rotate, when the first sensing element 47a on the rack connecting plate 45 touches the first stop dog 48a, the cylinder 42 stops extending, and the cylinder 63 tightens the positioning pressing plate 62 to fix the rotating shaft 2. After the insulating material part 10 to be processed is placed into the locking block 3 and fixed, the micro deep hole 103 (see fig. 3) can be processed on the insulating material part 10 for the first time. After one side (the first processing side 101) is processed, the air cylinder 63 releases the positioning pressing plate 62, the air cylinder 42 pushes the connecting piece 46 to drive the sliding block 44 and the rack to move, at the moment, the gear 7 rotates, and the insulating material part 10 is turned to the other side (the second processing side 102). When the second sensing element 47b on the rack connecting plate 45 hits the second stop 48b, the air cylinder 42 stops contracting, the part 10 is completely turned over (180 °), and the air cylinder 63 tightens the positioning pressing plate 62 again, so that the part 10 can be subjected to micro-deep-hole machining again. The finished part 10 is shown in fig. 3.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a small BTA frock of insulating material part which characterized in that: the machining device comprises a bottom plate, at least one rotating shaft, at least one locking block and a driving device, wherein the rotating shaft is installed on the bottom plate through an installation support, the locking block is installed at one end of the rotating shaft and used for locking an insulating material part to be machined in a small deep hole, the driving device is in driving connection with the other end of the rotating shaft, so that the insulating material part can be overturned to a second machining surface from a first machining surface, and the difference between the first machining surface and the second machining surface is 180 degrees.

2. The tooling for machining the micro deep hole of the insulating material part according to claim 1, characterized in that: the locking device comprises a locking block and a positioning device, wherein the locking block is fixed on a machining position by the positioning device.

3. The tooling for machining the micro deep hole of the insulating material part according to claim 2, characterized in that: the positioning device comprises a positioning seat, a positioning pressing plate and a jacking mechanism, the positioning seat is fixed on the bottom plate, the upper surface of the positioning seat is provided with a first positioning concave part for receiving the rotating shaft, the positioning pressing plate is fixed on the jacking mechanism, the lower surface of the positioning pressing plate is provided with a second positioning concave part matched with the first positioning concave part, and under the action of the jacking mechanism, the first positioning concave part and the second positioning concave part are matched to press or loosen the rotating shaft.

4. The tooling for machining the micro deep hole of the insulating material part according to claim 3, characterized in that: the jacking mechanism comprises an air cylinder, and the positioning pressing plate is fixed on a piston rod of the air cylinder.

5. The tooling for machining the micro deep hole of the insulating material part according to claim 1, characterized in that: the driving device is in driving connection with the rotating shaft in a gear and rack meshing mode.

6. The tooling for machining the micro deep hole of the insulating material part according to claim 5, characterized in that: the driving device comprises a linear reciprocating mechanism, the linear reciprocating mechanism is used for driving the rack to move between a first position and a second position, and the gear is fixedly arranged on the rotating shaft.

7. the tooling for machining the micro deep hole of the insulating material part according to claim 6, characterized in that: linear reciprocating motion mechanism includes mounting panel, cylinder, slide rail, slider and rack bar connection board, the mounting panel perpendicular to the bottom plate, cylinder and slide rail fixed mounting are in on the mounting panel, the slider sliding joint is in on the slide rail, rack bar connection board fixed connection be in on the slider and with the piston rod drive of cylinder is connected, the rack is fixed on the rack bar connection board.

8. The tooling for machining the micro deep hole of the insulating material part according to claim 7, characterized in that: the driving device further comprises a first sensing element, a second sensing element, a first stop block and a second stop block, the first sensing element and the second sensing element are respectively and fixedly installed at two ends of the rack connecting plate, the first stop block and the second stop block are respectively and fixedly installed on the installation plate, and the first sensing element and the second sensing element are respectively matched with the first stop block and the second stop block to confirm that the rack moves to the first position or the second position.

9. The tooling for machining the micro deep hole of the insulating material part according to claim 8, is characterized in that: the first and second inductive elements are proximity switches or contact switches.

10. The tooling for machining the micro deep hole of the insulating material part according to claim 1, characterized in that: the number of the rotating shafts is 2.