PCB drill bit with positioning structure

Abstract

The utility model discloses a PCB (printed circuit board) drill bit with a positioning structure, relates to the technical field of drill bits, and solves the problems that a drill hole depth positioning structure is not arranged, the drill hole depth is too short or the drill hole is drilled through easily, original parts are scrapped, and resources are wasted. The bottom end of the connector rod and the top end of the drill bit rod are integrally formed, a positioning structure is installed at the bottom end of the connector rod and comprises a nut and a sleeve, the outer circle side wall of the bottom end of the connector rod is sleeved with the sleeve, the edge of the top of the sleeve is fixedly connected with three annularly-arranged arc-shaped long plates, and the sleeve and the arc-shaped long plates are obliquely arranged. Threads matched with the nut are formed in the side face of the outer circle of the top end of the arc-shaped long plate, and the outer side wall of the sleeve is fixedly sleeved with a lantern ring. And through manual punching, the accurate depth can be controlled when a drill bit is installed on drill bit equipment for punching, the phenomenon that raw materials are drilled through or are drilled too deep is prevented, and resource waste is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to drill bit technical field, concretely is a PCB drill bit with positioning structure. BACKGROUND

[0002] Drill bit is used to drill out through hole or blind hole on solid material, and can ream the existing hole. Commonly used drill bits mainly include twist drill, flat drill, center drill, deep hole drill and sleeve drill.

[0003] The PCB drill bit is used for drilling the mounting area of the printed circuit board, and the drilling process of the handheld drill bit equipment is prone to short drilling depth or drilling through due to the wrong operation of workers, the short drilling installation screw cannot be normally and completely positioned, the drilling through causes the excess drilling of the part, the appearance and the overall strength are all decreased, and even the original part is scrapped, causing resource waste. UTILITY MODEL CONTENT

[0004] The utility model discloses a PCB drill bit with positioning structure, which can control the accurate depth of drilling by the drill bit installation drilling equipment, prevent the drilling through or drilling into the excessive depth of the raw material, prevent the resource waste, and solve the problems in the background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a PCB drill bit with positioning structure, including drill rod body, the drill rod body includes joint stem and drill bit stem, the bottom of joint stem and the top of drill bit stem are integrally formed, the bottom of joint stem is installed with positioning structure, the positioning structure includes nut and sleeve, the bottom of joint stem is equipped with the sleeve of the outer circle side wall, the top edge of sleeve is fixedly connected with three annular settings arc long boards, sleeve and arc long board are inclined to set, the outer edge side of the top of arc long board is provided with the screw thread matched with nut, the outer side wall of sleeve is fixedly equipped with the sleeve ring, the sleeve ring is installed with the measuring structure.

[0006] Preferably, the arc long board and the sleeve are integrally formed, which is more flat and beautiful than the welding method.

[0007] Preferably, the inner arc side wall of the top of the arc long board is fixedly connected with a plurality of elastic blocks, a plurality of evenly distributed concaves are formed in the outer side wall of the drill bit stem, and a part of the elastic blocks are extruded into the concaves, so that the friction force is increased after fitting, the maximum possibility of falling off is reduced, and the fixing firmness of the whole positioning structure is increased after adjustment.

[0008] Preferably, the overall length of the sleeve and the arc long board is less than the length of the drill bit stem, the overall length of the sleeve and the arc long board is greater than the length of the drill bit stem, and the maximum or minimum hole depth distance along the whole drill bit stem 102 can be drilled, and the vertical direction positioning can be completed through adjustment.

[0009] Preferably, the measuring structure comprises a pressing plate and a measuring scale, the bottom outer wall of the measuring scale is fixedly connected with the pressing plate, the outer wall of the sleeve ring is fixedly connected with the protrusion, the sleeve ring is located in the long cavity formed in the protrusion, the top end of the measuring scale is slidably connected with the long cavity, the whole distance between the bottom of the drill rod and the bottom of the sleeve ring can be measured during the downward movement of the measuring scale, the specific drill rod depth can be measured, and the drilling depth accuracy is ensured.

[0010] Preferably, the outer side of the protrusion is threadedly connected with a pressing bolt, the bottom of the protrusion is provided with a groove matched with the pressing plate, the pressing bolt is tightened to complete extrusion and fixation, and the protrusion is not easy to fall off during drilling, so that danger is caused.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: until the inner arc surface of the arc-shaped long plate is in contact with the outer wall of the joint rod to form extrusion, the extrusion force is increased, and thus fixation is completed, the drilling depth can be controlled accurately during the manual drilling process, the raw material is prevented from being drilled through or drilled too deep, the waste of resources is prevented, the positioning effect in the vertical direction is achieved, and the drilling convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the utility model;

[0013] Figure 2 It is a whole front view structure schematic view of the utility model;

[0014] Figure 3 It is a three-dimensional structure schematic view of the drill rod body and the positioning structure in the utility model;

[0015] Figure 4 It is a three-dimensional enlarged structure schematic view of the positioning structure in the utility model;

[0016] Figure 5 It is a three-dimensional enlarged structure schematic view of the measuring structure in the utility model.

[0017] In the drawing: 1, drill rod body; 101, joint rod; 102, drill rod; 2, positioning structure; 201, nut; 202, sleeve; 203, arc-shaped long plate; 204, sleeve ring; 205, inner recess; 206, thread; 207, elastic block; 3, measuring structure; 301, protrusion; 302, pressing plate; 303, measuring scale; 304, pressing bolt; 305, long cavity. DETAILED DESCRIPTION

[0018] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.

[0019] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , a PCB drill bit with positioning structure is shown in the drawing, including drill rod body 1, the drill rod body 1 includes joint rod 101 and drill bit rod 102, the bottom end of joint rod 101 and the top end of drill bit rod 102 are integrally formed, the bottom end of joint rod 101 is provided with positioning structure 2, positioning structure 2 includes nut 201 and sleeve 202, the bottom end of joint rod 101 is provided with sleeve 202 on the outer circular sidewall, three annular arc long plates 203 are fixedly connected to the top edge of sleeve 202, sleeve 202 and arc long plate 203 are inclinedly arranged, the outer circular side of the top end of arc long plate 203 is provided with thread 206 matched with nut 201, sleeve ring 204 is fixedly arranged on the outer sidewall of sleeve 202, it should be noted that nut 201 is manually screwed by spanner, so that nut 201 moves towards the upper side of arc long plate 203, the included angle of the joint of arc long plate 203 and sleeve 202 increases, so that the opening of three arc long plates 203 increases, sleeve 202 can be manually pushed to move vertically, sleeve ring 204 can be adjusted in height along drill bit rod 102, after adjustment, nut 201 is manually screwed by spanner, so that nut 201 moves towards the lower side of arc long plate 203, the included angle of the joint of arc long plate 203 and sleeve 202 decreases until the inner arc surface of arc long plate 203 is in contact with the outer sidewall of joint rod 101 and is extruded, the extrusion force increases, so that the fixing is completed, so that the depth of manual punching of drill bit installation drill bit equipment can be controlled, the waste of resources caused by drilling through or drilling too deep is prevented, the positioning effect in the vertical direction is achieved, and the convenience of drilling is improved.

[0020] Please refer to Figure 3 , arc long plate 203 and sleeve 202 are integrally formed, it should be noted that the integrally formed connection is more smooth and beautiful compared with the welding mode.

[0021] Please refer to Figure 2 And Figure 5The inner arc side wall of the top end of the arc-shaped long plate 203 is fixedly connected with a plurality of elastic blocks 207, and the outer side wall of the drill rod 102 is provided with a plurality of concaves 205 which are uniformly distributed. It should be noted that after the arc-shaped long plate 203 is separated from the drill rod 102, a part of the elastic blocks 207 are extruded into the concaves 205, so that the friction after fitting is increased, the maximum possibility of falling off is reduced, and the fixing firmness of the whole positioning structure 2 after adjustment is increased.

[0022] Referring to Figure 4 The overall length of the sleeve 202 and the arc-shaped long plate 203 is less than the length of the joint rod 101, and the overall length of the sleeve 202 and the arc-shaped long plate 203 is greater than the length of the drill rod 102. It should be noted that the overall length of the sleeve 202 and the arc-shaped long plate 203 is ensured to be fitted with the overall length of the drill rod 102, and the vertical positioning can be completed by adjustment along the maximum or minimum depth distance of the whole drill rod 102.

[0023] Referring to Figure 2 The measuring structure 3 comprises a pressure plate 302 and a measuring scale 303. The bottom outer side wall of the measuring scale 303 is fixedly connected with the pressure plate 302, the outer side wall of the sleeve 204 is fixedly connected with a protrusion 301, the sleeve 204 located in the protrusion 301 is provided with a long cavity 305, and the top end of the measuring scale 303 is slidably connected with the long cavity 305. It should be noted that when the overall positioning structure 2 is adjusted in length, the pressure plate 302 can be pulled downward, and the distance from the bottom of the whole drill rod 102 to the bottom of the sleeve 204 can be measured during the downward movement of the measuring scale 303. The specific drill rod depth can be measured, the drilling depth accuracy is ensured, the drilling depth distance is memorized in a digital way, the drilling depth of different types of raw materials is counted, and the positioning structure 2 can be quickly adjusted next time for different types of raw materials.

[0024] Referring to Figure 2 And Figure 5 The outer side surface of the protrusion 301 is threadedly connected with a pressing bolt 304, and the bottom of the protrusion 301 is provided with a groove matched with the pressure plate 302. It should be noted that after the measuring scale 303 is measured, it is placed back to the original position, and the extrusion is completed by tightening the pressing bolt 304, so that the falling off is not easy to occur, and the danger caused by falling off during drilling is prevented. The groove is fitted with the pressure plate 302, and the pressure plate 302 will not cause the local protrusion of the bottom of the sleeve 202, so that the normal positioning effect is ensured.

[0025] Working principle: manually turn the nut 201 with wrench, make the nut 201 move towards the upper of the arc long plate 203, the included angle of the connection between the arc long plate 203 and the sleeve 202 increases, so that the three arc long plates 203 open larger, manually push the sleeve 202 to move vertically, the sleeve ring 204 can adjust the height along the drill rod 102, after the adjustment is completed, manually turn the nut 201 with wrench, make the nut 201 move towards the lower of the arc long plate 203, the included angle of the connection between the arc long plate 203 and the sleeve 202 decreases, until the inner arc surface of the arc long plate 203 and the outer side wall of the joint rod 101 form contact and extrusion, the extrusion force increases, so as to complete the fixation.

[0026] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and scope of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PCB drill bit having a positioning structure, comprising a drill shaft body (1), characterized in that, The drill rod body (1) includes a joint rod (101) and a drill bit rod (102), the bottom end of the joint rod (101) and the top end of the drill bit rod (102) are integrally formed, a positioning structure (2) is installed at the bottom end position of the joint rod (101), the positioning structure (2) includes a nut (201) and a sleeve (202), the bottom end position of the joint rod (101) is sleeved with the sleeve (202) on the outer circular side wall, three annular arc-shaped long plates (203) are fixedly connected to the top edge of the sleeve (202), the top end outer circular side of the arc-shaped long plate (203) is provided with a thread (206) matched with the nut (201), the sleeve (202) and the arc-shaped long plate (203) are inclined, and the sleeve (202) is fixedly sleeved with a sleeve ring (204) on the outer side wall. A measuring structure (3) is installed on the sleeve ring (204).

2. The PCB drill bit with a positioning structure according to claim 1, wherein: The arc-shaped long plate (203) is integrally formed with the sleeve (202).

3. The PCB drill bit with a positioning structure according to claim 1, wherein: A plurality of elastic blocks (207) are fixedly connected to the top end inner arc side wall of the arc-shaped long plate (203), and a plurality of concaves (205) are uniformly arranged on the outer side wall of the drill bit rod (102).

4. The PCB drill bit with a positioning structure according to claim 1, wherein: The overall length of the sleeve (202) and the arc-shaped long plate (203) is less than the length of the joint rod (101), and the overall length of the sleeve (202) and the arc-shaped long plate (203) is greater than the length of the drill bit rod (102).

5. The PCB drill bit having a positioning structure according to claim 1, wherein: The measuring structure (3) includes a pressing plate (302) and a measuring scale (303), the bottom outer side wall of the measuring scale (303) is fixedly connected with the pressing plate (302), the outer circular side wall of the sleeve ring (204) is fixedly connected with a protrusion (301), the sleeve ring (204) is provided with a long cavity (305) at the position of the protrusion (301), and the top end of the measuring scale (303) is slidably connected with the long cavity (305).

6. The PCB drill bit having a positioning structure according to claim 5, wherein: The outer side of the protrusion (301) is threadedly connected with a pressing bolt (304), and the bottom of the protrusion (301) is provided with a groove matched with the pressing plate (302).

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