Accurate punching device for synchronous wheel machining

Abstract

The utility model relates to the technical field of drilling machining, and discloses an accurate punching device for synchronous wheel machining, which comprises a mounting base, a servo motor is fixedly mounted on the upper surface of the mounting base, a rotating shaft of the servo motor is fixedly provided with a rotating table, and a T-shaped sliding rail is fixedly mounted on the upper surface of the rotating table. A positioning seat is slidably mounted on the upper side of the T-shaped sliding rail, a locking bolt is mounted on the side face of the positioning seat in a threaded mode, a positioning hole is formed in the side face of the positioning seat, a drilling guide hole is formed in the upper surface of the positioning seat and communicated with the positioning hole, and a drilling assembly capable of sliding up and down is arranged on the upper side of the mounting base. According to the punching device, the positioning hole is formed in the positioning seat, the synchronous wheel to be machined is installed in the positioning hole, the abutting air cylinder is used for abutting and fixing, the drill bit downwards drills the synchronous wheel to be machined in the radial direction along the drilling guide hole, the effect of limiting the drill bit is achieved, the drill bit can be well prevented from being bent, and the punching precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling processing, in particular to a precise hole punching device for synchronous pulley processing. Background Technique

[0002] During the production process of synchronous pulleys, hole punching processing is often required. For example, in the prior art, the publication number is CN213794371U, which discloses a precise hole punching device for synchronous pulley processing. In view of the problem that the punching depth cannot be precisely controlled in the prior art, the following scheme is now proposed. It includes an operation board, and is characterized in that a cleaning port is opened at the top of the operation board, a clamping ring is fixedly installed on the top of the operation board, multiple telescopic rods are fixedly installed on the outside of the clamping ring, the output ends of the multiple telescopic rods all extend into the inside of the clamping ring, and clamping blocks are fixedly installed at the ends of the multiple telescopic rods located inside the clamping ring. The structure of the utility model is reasonable, the structure is stable, and the operation is simple. It not only realizes precise control of the drilling depth of the workpiece, but also can buffer and protect the drilling tool when the drilling tool machine is performing drilling operations, prevent the drilling tool from being damaged, and also realizes the collection of chips generated by drilling, prevent the chips from spreading everywhere, protect the production environment, and is easy to promote and use.

[0003] In the actual processing process, the above scheme is applicable to hole punching at the end face position. When the drilling position is on the outer cylindrical surface of the synchronous pulley, that is, radial hole punching, the holes are used to install locking bolts to fix the synchronous pulley on the installation shaft. Since the outer cylindrical surface of the synchronous pulley is not a plane, the drilling position is difficult to control. Based on this, the common hole punching devices have the problem of being inconvenient for radial hole punching and need to be further improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precise hole punching device for synchronous pulley processing to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A precise hole punching device for synchronous pulley processing, including an installation base, a servo motor is fixedly installed on the upper surface of the installation base, a rotating table is fixedly installed on the rotating shaft of the servo motor, a T-shaped slide rail is fixedly installed on the upper surface of the rotating table, a positioning seat is slidably installed on the upper side of the T-shaped slide rail, a locking bolt is threadedly installed on the side surface of the positioning seat, a positioning hole is opened on the side surface of the positioning seat, a drilling guide hole is arranged on the upper surface of the positioning seat, and the drilling guide hole communicates with the positioning hole.

[0006] An installation vertical plate is fixedly installed on the upper surface of the installation base, a pressing cylinder is fixedly installed on the front surface of the installation vertical plate, the synchronous pulley to be processed is slidably inserted into the positioning hole, the pressing cylinder presses the synchronous pulley to be processed tightly, and a drilling assembly that can slide up and down is arranged on the front surface of the installation vertical plate.

[0007] Preferably, the drilling assembly includes a rotary motor. A three-jaw chuck is fixedly installed at the rotary end of the rotary motor. A drill bit is clamped at the bottom end of the three-jaw chuck. A telescopic cylinder is fixedly installed on the front surface of the installation vertical plate. A lifting seat is fixedly installed at the telescopic end of the telescopic cylinder. The rotary motor is fixedly connected to the lifting seat. When the telescopic cylinder extends downward, the drill bit can slide into the drilling guide hole. The rotating table rotates to switch positions, and the synchronous pulleys to be processed can be loaded and unloaded on the two positioning seats respectively, realizing the function of double-station processing.

[0008] Preferably, two T-shaped sliding rails are arranged on the upper surface of the rotating table. The two T-shaped sliding rails are arranged in parallel, and positioning seats are arranged on the upper sides of the two T-shaped sliding rails. There are multiple drilling guide holes, and a drilling sleeve is tightly inserted in each drilling guide hole. The drill bit can extend through the drilling sleeve into the positioning hole. The position of the positioning seat can be adjusted slidably to select a suitable drilling cylinder according to needs.

[0009] Preferably, an intermediate partition is fixedly installed on the upper surface of the rotating table. The two positioning seats are respectively arranged on both sides of the intermediate partition, and both positioning seats are closely attached to the surface of the intermediate partition. Exhaust holes are opened on the front and rear sides of the intermediate partition, and the exhaust holes on both sides are respectively communicated with the positioning holes of the two positioning seats.

[0010] Two connecting seats are fixedly installed on the upper surface of the installation base. Injecting gas pipes are respectively fixedly installed on the surfaces of the two connecting seats. Air guide channels extending into the intermediate partition are opened on the outer circular surface of the rotating table. The two injecting gas pipes are respectively communicated with the exhaust holes on both sides through the air guide channels. A sliding groove is opened on one side of the connecting seat close to the rotating table. A telescopic sleeve is slidably installed in the sliding groove. A pressing spring is arranged in the connecting seat. The pressing spring presses against the telescopic sleeve, making the telescopic sleeve in sliding contact with the outer circular surface of the rotating table. When the rotating table rotates to a certain angle, the injecting gas pipe is communicated with the mouth of the air guide channel through the telescopic sleeve, and compressed air is discharged from the exhaust hole to purge the inner cavity of the positioning hole, facilitating chip removal, and the air flow can push the processed synchronous pulley out of the positioning seat, achieving the effect of assisting in unloading.

[0011] Preferably,

[0012] Beneficial effects

[0013] The utility model provides a precise punching device for synchronous pulley processing, which has the following beneficial effects:

[0014] 1. For this punching device, by opening a positioning hole in the positioning seat, installing the synchronous pulley to be processed in the positioning hole, and using the pressing cylinder to press and fix it, the drill bit drills radially downward along the drilling guide hole for the synchronous pulley to be processed, playing a role in limiting the drill bit, which can well prevent the drill bit from bending and improve the punching accuracy.

[0015] 2. The punching device is provided with a plurality of drilling sleeves at the drilling guide holes. The inner hole diameters of each drilling sleeve are different, and different drill bits can be replaced according to needs, so that the drill bit can pass through the drilling sleeve matching the drill bit. By arranging two symmetrically arranged positioning seats on the rotating table, and the rotating table rotates to switch positions, the synchronous wheels to be processed can be installed on the two positioning seats respectively to achieve a double-station, which has the effect of facilitating loading and unloading. Moreover, exhaust holes are provided on the middle partition. When loading and unloading, the exhaust holes discharge air to blow the positioning holes, which is convenient for chip removal and auxiliary unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0017] Figure 2 is a schematic front-sectional structure diagram of the middle partition;

[0018] Figure 3 is a schematic side view structure diagram of the present invention;

[0019] Figure 4 is a schematic front view structure diagram of the present invention.

[0020] In the figure: 1 mounting base, 2 servo motor, 3 rotating table, 4 T-shaped slide rail, 5 positioning seat, 6 locking bolt, 7 positioning hole, 8 mounting vertical plate, 9 pressing cylinder, 10 rotating motor, 11 three-jaw chuck, 12 drill bit, 13 telescopic cylinder, 14 lifting seat, 15 drilling sleeve, 16 middle partition, 17 exhaust hole, 18 connecting seat, 19 injection pipe, 20 air guide channel, 21 telescopic sleeve, 22 pressing spring, 23 synchronous wheel to be processed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4, the present utility model provides a technical solution: a precise drilling device for synchronous pulley processing, including a mounting base 1. A servo motor 2 is fixedly installed on the upper surface of the mounting base 1. A rotating table 3 is fixedly installed on the rotating shaft of the servo motor 2. A T-shaped slide rail 4 is fixedly installed on the upper surface of the rotating table 3. A positioning seat 5 is slidably installed on the upper side of the T-shaped slide rail 4. A locking bolt 6 is threadedly installed on the side surface of the positioning seat 5. By pressing the locking bolt 6, the positioning seat 5 is fixed on the T-shaped slide rail 4. A positioning hole 7 is provided on the side surface of the positioning seat 5. A drilling guide hole is arranged on the upper surface of the positioning seat 5, and the drilling guide hole communicates with the positioning hole 7.

[0023] An installation vertical plate 8 is fixedly installed on the upper surface of the mounting base 1. A pressing cylinder 9 is fixedly installed on the front surface of the installation vertical plate 8. The synchronous pulley 23 to be processed is slidably inserted into the positioning hole 7, and the pressing cylinder 9 presses the synchronous pulley 23 to be processed. A drilling component that can slide up and down is arranged on the front surface of the installation vertical plate 8.

[0024] Specifically, the drilling component includes a rotating motor 10. A three-jaw chuck 11 is fixedly installed on the rotating end of the rotating motor 10. A drill bit 12 is clamped at the bottom end of the three-jaw chuck 11. A telescopic cylinder 13 is fixedly installed on the front surface of the installation vertical plate 8. A lifting seat 14 is fixedly installed on the telescopic end of the telescopic cylinder 13. The rotating motor 10 is fixedly connected to the lifting seat 14. When the telescopic cylinder 13 extends downward, the drill bit 12 can slide into the drilling guide hole.

[0025] In this embodiment, two T-shaped slide rails 4 are arranged on the upper surface of the rotating table 3. The two T-shaped slide rails 4 are arranged in parallel, and positioning seats 5 are arranged on the upper sides of both T-shaped slide rails 4. There are multiple drilling guide holes, and a drilling sleeve 15 is tightly inserted into each drilling guide hole. The drill bit 12 can extend through the drilling sleeve 15 into the positioning hole 7. By arranging multiple drilling sleeves 15 at the drilling guide holes, the inner hole diameters of each drilling sleeve 15 are different. Different drill bits 12 can be replaced as needed. The position of the positioning seat 5 is slidably adjusted to align the matching drilling sleeve 15 with the drill bit 12, so that the drill bit 12 can pass through the drilling sleeve 15 to perform radial drilling on the synchronous pulley 23 to be processed.

[0026] An intermediate partition 16 is fixedly installed on the upper surface of the rotating table 3. The two positioning seats 5 are respectively arranged on both sides of the intermediate partition 16, and both positioning seats 5 are closely attached to the surface of the intermediate partition 16. Exhaust holes 17 are provided on the front and rear sides of the intermediate partition 16. The exhaust holes 17 on both sides communicate with the positioning holes 7 of the positioning seats 5 on both sides respectively. By arranging two symmetrically arranged positioning seats 5 on the rotating table 3 and rotating and switching the position of the rotating table 3, the synchronous pulley 23 to be processed can be installed on the two positioning seats 5 respectively to achieve a double-station, as Figure 3 shown, which is convenient for sliding the synchronous pulley 23 to be processed into the positioning hole 7, achieving the effect of convenient loading and unloading.

[0027] Two connecting seats 18 are fixedly installed on the upper surface of the installation base 1. The surfaces of the two connecting seats 18 are respectively fixedly installed with air injection pipes 19. Two air guiding channels 20 extending into the middle partition plate 16 are formed on the outer circular surface of the rotating table 3. The two air injection pipes 19 are respectively communicated with the exhaust holes 17 on both sides through the air guiding channels 20.

[0028] A chute is formed on one side of the connecting seat 18 close to the rotating table 3. A telescopic sleeve 21 is slidably installed in the chute. A tightening spring 22 is arranged in the connecting seat 18. The tightening spring 22 abuts against the telescopic sleeve 21, so that the telescopic sleeve 21 is in sliding contact with the outer circular surface of the rotating table 3. When the rotating table 3 rotates to a certain angle, the air injection pipe 19 is communicated with the mouth of the air guiding channel 20 through the telescopic sleeve 21.

[0029] Since the exhaust holes 17 are arranged on the middle partition plate 16, during loading and unloading, air is injected into the air guiding channel 20 through the air injection pipe 19, and the compressed air is discharged from the exhaust holes 17 to purge the inner cavity of the positioning hole 7, which is convenient for discharging the iron chips generated by drilling. Moreover, the air flow can push the processed synchronous pulley out of the positioning seat 5, playing an auxiliary unloading effect.

[0030] For this drilling device, by forming the positioning hole 7 in the positioning seat 5, the synchronous pulley 23 to be processed is installed in the positioning hole 7 and is tightly fixed by using the tightening cylinder 9. The drill bit 12 drills radially downward on the synchronous pulley 23 to be processed along the drilling guide hole (or the inner hole of the drilling sleeve 15), playing a role in limiting the drill bit 12, which can well prevent the drill bit 12 from bending and improve the drilling accuracy. This design realizes the functions of double-station loading and unloading and pneumatic purging and chip removal, and is more convenient to use.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision punching device for synchronous wheel processing, comprising a mounting base (1), characterized in that: A servo motor (2) is fixedly mounted on the upper surface of the mounting base (1), a rotating table (3) is fixedly mounted on the rotating shaft of the servo motor (2), a T-shaped slide rail (4) is fixedly mounted on the upper surface of the rotating table (3), a positioning seat (5) is slidably mounted on the upper side of the T-shaped slide rail (4), a locking bolt (6) is threadedly mounted on the side of the positioning seat (5), a positioning hole (7) is opened on the side of the positioning seat (5), and a drilling guide hole is arranged on the upper surface of the positioning seat (5), and the drilling guide hole is communicated with the positioning hole (7); A mounting vertical plate (8) is fixedly mounted on the upper surface of the mounting base (1), a pressing cylinder (9) is fixedly mounted on the front face of the mounting vertical plate (8), the synchronous wheel (23) to be processed is slidably inserted into the positioning hole (7), the pressing cylinder (9) presses the synchronous wheel (23) to be processed, and a drilling assembly that can slide up and down is arranged on the front face of the mounting vertical plate (8).

2. The precise punching device for synchronous wheel processing according to claim 1, characterized in that: The drilling assembly comprises a rotating motor (10), a three-jaw chuck (11) is fixedly mounted on the rotating end of the rotating motor (10), and a drill bit (12) is clamped at the bottom end of the three-jaw chuck (11).

3. The precise punching device for synchronous wheel processing according to claim 2 is characterized in that: A telescopic cylinder (13) is fixedly mounted on the front of the mounting vertical plate (8), a lifting seat (14) is fixedly mounted on the telescopic end of the telescopic cylinder (13), the rotary motor (10) is fixedly connected to the lifting seat (14), and when the telescopic cylinder (13) is extended downward, the drill bit (12) can be slidably inserted into the drilling guide hole.

4. The precise punching device for synchronous wheel processing according to claim 3 is characterized in that: The upper surface of the rotating platform (3) is provided with two T-shaped slide rails (4), the two T-shaped slide rails (4) are arranged in parallel, and the upper sides of the two T-shaped slide rails (4) are both provided with positioning seats (5).

5. The precise punching device for synchronous wheel processing according to claim 4, characterized in that: There are a plurality of drilling guide holes, each of which is tightly fitted with a drilling sleeve (15), and the drill bit (12) can pass through the drilling sleeve (15) and extend into the positioning hole (7).

6. The precise punching device for synchronous wheel processing according to claim 5, characterized in that: A middle partition (16) is fixedly mounted on the upper surface of the rotating table (3); two positioning seats (5) are respectively arranged on both sides of the middle partition (16), and the two positioning seats (5) are both in close contact with the surface of the middle partition (16); exhaust holes (17) are provided on both the front and rear sides of the middle partition (16); and the exhaust holes (17) on both sides are respectively connected to the positioning holes (7) of the positioning seats (5) on both sides.

7. The precise punching device for synchronous wheel processing according to claim 6, characterized in that: Two connecting seats (18) are fixedly mounted on the upper surface of the mounting base (1), and gas injection pipes (19) are fixedly mounted on the surfaces of the two connecting seats (18). The outer circumferential surface of the rotating table (3) is provided with two gas guide channels (20) extending into the middle partition (16), and the two gas injection pipes (19) are respectively connected to the exhaust holes (17) on both sides through the gas guide channels (20).

8. The precise punching device for synchronous wheel processing according to claim 7, characterized in that: A sliding groove is provided on one side of the connecting seat (18) close to the rotating table (3), a telescopic sleeve (21) is slidably installed in the sliding groove, and a pressing spring (22) is arranged in the connecting seat (18), the pressing spring (22) presses against the telescopic sleeve (21), so that the telescopic sleeve (21) and the outer cylindrical surface of the rotating table (3) are in sliding contact, and when the rotating table (3) rotates to a certain angle, the gas injection pipe (19) is connected with the mouth of the gas guide channel (20) through the telescopic sleeve (21).

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