Compound cutting tap with inner cooling hole and helical groove

Abstract

The utility model discloses a kind of inner cooling hole and spiral groove composite cutting tap, including bracing plate, sliding slot, butt joint rod, cutting tap and linkage mechanism, sliding slot is set on bracing plate, butt joint rod is slidably connected at bracing plate top, cutting tap is connected at butt joint rod one end, linkage mechanism is set on bracing plate.The beneficial effects of the utility model are:in the utility model, by setting linkage mechanism, and then by the meshing linkage of driving gear in linkage mechanism driving driven gear, and then by first adjusting rod and second adjusting rod respectively driving driving push-pull rod and driven push-pull rod linkage, and drive first pulley, second pulley reciprocating motion as a whole, and by sprocket and chain enable cutting tap to be driven fast reciprocating motion, by chain drive to replace cylinder / motor direct drive, avoid leakage problem caused by cylinder sealing element abrasion, simultaneously eliminate motor frequent forward and reverse rotation caused by winding overheating and gear abrasion, prolong the life of equipment.

Description

Technical Field

[0001] This utility model relates to a tap, specifically a composite cutting tap with internal cooling hole and spiral groove, belonging to the field of tap technology. Background Technology

[0002] A tap is a tool for machining internal threads. According to its shape, it can be divided into spiral flute taps, angled taps, straight flute taps, and pipe thread taps. According to the environment in which it is used, it can be divided into hand taps and machine taps. According to its specifications, it can be divided into metric, US, and imperial taps. Taps are the most mainstream machining tool used by operators in the manufacturing industry when tapping threads.

[0003] However, most existing taps have various problems. For example, in a cutting tap disclosed in publication number CN222078194U, although it can prevent chips from adhering to the rake face of the cutting tap, in this technical solution and most current taps, the tap needs to be linked with the feed mechanism during milling. Most current feed mechanisms include cylinder drive and motor combined with lead screw drive. First, cylinder drive has problems such as easy wear of the sealing ring and internal / external leakage caused by piston rod eccentricity. Frequent reciprocating motion will accelerate the failure of the buffer mechanism and fatigue fracture of parts. Second, when the motor is used in conjunction with the lead screw drive, frequent forward and reverse rotation will cause overheating of the winding, accelerated wear of gears and aging of grease. These defects together lead to low processing efficiency and increased equipment maintenance costs. Therefore, there is an urgent need for a composite cutting tap with internal cooling hole and spiral groove to solve this problem. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a composite cutting tap with an internal cooling hole and a spiral groove.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A composite cutting tap with internal cooling hole and spiral groove includes a support plate, a sliding groove, a connecting rod, a cutting tap, and a linkage mechanism. The sliding groove is disposed on the support plate, the connecting rod is slidably connected to the top of the support plate, the cutting tap is connected to one end of the connecting rod, and the linkage mechanism is disposed on the support plate. The linkage mechanism includes a first pulley, a second pulley, a docking plate, a sprocket, a chain, and a drive unit. The first and second pulleys are both rolled and engaged in the sliding groove and are arranged side by side. The two ends of the docking plate are respectively rotatably connected to the axes of the first and second pulleys. The two sprockets are coaxially fixed with the first and second pulleys and are located on one side of the docking plate. The chain is arranged between two adjacent sprockets. The other end of the docking rod is connected to the top of the chain, and the drive unit is connected to the bottom of the chain.

[0006] As a further embodiment of this utility model: the drive unit includes a drive gear, a first adjusting rod, and a drive push-pull rod. The drive gear is rotatably connected to one side of the support plate. One end of the first adjusting rod and one end of the drive push-pull rod are rotatably connected to each other. The other end of the first adjusting rod is fixed at the axis of the drive gear. The other end of the drive push-pull rod is connected to the bottom of the chain.

[0007] As a further embodiment of this utility model: the drive unit further includes a driven gear, a second adjusting rod, and a driven push-pull rod. The driven gear is rotatably connected to one side of the support plate. One end of the second adjusting rod and the driven push-pull rod are rotatably connected to each other. The other end of the second adjusting rod is fixed at the axis of the driven gear. The other end of the driven push-pull rod is rotatably connected to the axis of the sprocket.

[0008] As a further embodiment of this utility model: the driving gear is coaxially fixed with the output shaft of the external drive device, and the driving gear and the driven gear mesh with each other.

[0009] As a further improvement of this utility model: a recessed hole is provided at one end of the connecting rod near the cutting tap, the cutting tap is connected to the recessed hole, and is detachably connected and locked to the connecting rod by screws.

[0010] As a further embodiment of this utility model: a water inlet pipe is provided at the other end of the connecting rod, the water inlet pipe is connected to the concave hole, and a flow guiding cavity is provided at the axis of the cutting tap, and a spray hole is provided on the outer surface of the cutting tap.

[0011] The beneficial effects of this utility model are: In this invention, a linkage mechanism is set up, in which the driving gear drives the driven gear to mesh and link together. Then, the first adjusting rod and the second adjusting rod drive the driving push-pull rod and the driven push-pull rod to link together, and drive the first pulley and the second pulley to reciprocate as a whole. Through the sprocket and chain, the cutting tap can be driven to reciprocate rapidly. The chain drive replaces the cylinder / motor direct drive, avoiding the leakage problem caused by the wear of cylinder seals. At the same time, it eliminates the winding overheating and gear wear caused by the frequent forward and reverse rotation of the motor, extending the service life of the equipment. Moreover, the instantaneous response characteristics of the chain drive are better than the inertial delay of the screw drive, making it suitable for high-frequency reciprocating conditions and greatly improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the linkage mechanism of this utility model; Figure 3 This is a schematic diagram of the chain and its connecting structure of this utility model; Figure 4 This is a schematic diagram of the connecting rod and its connection structure of the present invention.

[0013] In the diagram: 1. Support plate, 2. Sliding groove, 3. Connecting rod, 4. Cutting tap, 5. Linkage mechanism, 51. First pulley, 52. Second pulley, 53. Connecting plate, 54. Sprocket, 55. Chain, 56. Drive gear, 57. First adjusting rod, 58. Driven push-pull rod, 59. Driven gear, 510. Second adjusting rod, 511. Driven push-pull rod, 6. Water inlet pipe. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0015] like Figures 1 to 4 As shown, a composite cutting tap with internal cooling hole and spiral groove includes a support plate 1, a sliding groove 2, a connecting rod 3, a cutting tap 4 and a linkage mechanism 5. The sliding groove 2 is disposed on the support plate 1, the connecting rod 3 is slidably connected to the top of the support plate 1, the cutting tap 4 is connected to one end of the connecting rod 3, and the linkage mechanism 5 is disposed on the support plate 1. The linkage mechanism 5 includes a first pulley 51, a second pulley 52, a docking plate 53, a sprocket 54, a chain 55, and a drive unit. The first pulley 51 and the second pulley 52 are both rolled and engaged in the sliding groove 2, and they are arranged side by side. The two ends of the docking plate 53 are respectively rotatably connected to the shafts of the first pulley 51 and the second pulley 52. ​​The two sprockets 54 are respectively coaxially fixed with the first pulley 51 and the second pulley 52, and are located on one side of the docking plate 53. The chain 55 is arranged between two adjacent sprockets 54. The other end of the docking rod 3 is connected to the top of the chain 55, and the drive unit is connected to the bottom of the chain 55. The drive unit includes a drive gear 56, a first adjusting rod 57, and a drive push-pull rod 58. The drive gear 56 is rotatably connected to one side of the support plate 1. One end of the first adjusting rod 57 and the drive push-pull rod 58 are rotatably connected to each other. The other end of the first adjusting rod 57 is fixed at the shaft of the drive gear 56. The other end of the drive push-pull rod 58 is connected to the bottom of the chain 55. The drive unit also includes a driven gear 59, a second adjusting rod 510, and a driven push-pull rod 511. The driven gear 59 is rotatably connected to one side of the support plate 1. One end of the second adjusting rod 510 and the driven push-pull rod 511 are rotatably connected to each other. The other end of the second adjusting rod 510 is fixed at the axis of the driven gear 59. The other end of the driven push-pull rod 511 is rotatably connected to the axis of the sprocket 54. The driving gear 56 is coaxially fixed with the output shaft of the external drive device, and the driving gear 56 and the driven gear 59 mesh with each other.

[0016] In this invention, a linkage mechanism 5 is provided, in which the driving gear 56 drives the driven gear 59 to mesh and link together. Then, the first adjusting rod 57 and the second adjusting rod 510 respectively drive the driving push-pull rod 58 and the driven push-pull rod 511 to link together, and drive the first pulley 51 and the second pulley 52 to reciprocate as a whole. Through the sprocket 54 and the chain 55, the cutting tap 4 can be driven to reciprocate quickly. By replacing the cylinder / motor direct drive with chain drive, leakage problems caused by cylinder seal wear are avoided. At the same time, the overheating of the winding and gear wear caused by the frequent forward and reverse rotation of the motor are eliminated, extending the service life of the equipment. Moreover, the instantaneous response characteristics of chain drive are better than the inertial delay of the screw drive, which is suitable for high-frequency reciprocating conditions and greatly improves work efficiency. Example 2

[0017] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes: A recessed hole is provided on one end of the connecting rod 3 near the cutting tap 4. The cutting tap 4 is connected to the recessed hole and is detachably connected and locked to the connecting rod 3 by screws. The screws allow the cutting tap 4 to be quickly disassembled and assembled.

[0018] The other end of the connecting rod 3 is provided with a water inlet pipe 6, which is connected to the concave hole. A guide cavity is provided at the axis of the cutting tap 4. Spray holes are provided on the outer surface of the cutting tap 4. The coolant can enter the interior of the cutting tap 4 through the water inlet pipe 6 and be sprayed out through the spray holes to achieve the internal cooling effect of the cutting tap 4.

[0019] Working principle: When using this tap, first fix the cutting tap 4 in the concave hole at one end of the connecting rod 3 with screws, and connect the water inlet pipe 6 to the external guide pipe. Then, drive the drive gear 56 to rotate through the external drive device, and drive the driven gear 59 to mesh and move together. Then, drive the drive push-pull rod 58 and the driven push-pull rod 511 to move together through the first adjusting rod 57 and the second adjusting rod 510 respectively, and drive the first pulley 51 and the second pulley 52 to reciprocate as a whole. Through the sprocket 54 and the chain 55, the cutting tap 4 can be driven to reciprocate quickly.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

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