An apparatus for opening

Abstract

The utility model provides a kind of trepanning device, including cabinet, the upper portion of cabinet is provided with at least one puncher, rotaryly being provided with carousel on cabinet, at least two fixed clamps are provided on carousel, fixed clamp can be clamped and fixed to the workpiece to be punched, carousel can be rotated with the workpiece to be punched of fixed clamp upper clamping and fixed to the just below of puncher, fixed clamp includes the fixed frame being set on carousel, the upper portion of fixed frame is provided with positioning slot and suction accessory, positioning slot can be guided and positioned to the workpiece to be punched, suction accessory can be adsorbed and positioned to the workpiece to be punched in positioning slot, the utility model can be realized to the workpiece to be punched by at least two fixed clamps set on carousel High efficient fixed effect, can be realized in the process of punching in one workpiece, without affecting the other workpiece's pick and put piece operation, greatly improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hole-opening equipment technology, and specifically to a hole-opening device. Background Technology

[0002] As we all know, with the development of the electronics industry, terminal blocks, as an accessory product for realizing electrical connections, are being used in an increasingly wide range of applications, and the types of terminal blocks are also increasing. Generally, terminal blocks consist of an insulating shell and a metal wire body set inside the insulating shell. During the production of terminal blocks, it is necessary to drill holes in the insulating shell.

[0003] Currently, the hole-opening devices on the market have relatively complex structures and high manufacturing costs. Furthermore, these devices cannot process multiple holes simultaneously, resulting in low work efficiency.

[0004] According to the patent document with announcement number CN212849264U, by cooperating with the support plate and the positioning housing on which the motor is installed, multi-hole processing of terminal block production equipment can be performed according to user needs, thereby improving processing efficiency; at the same time, the positioning housing is equipped with a pad to prevent adjacent motors from working simultaneously and causing undesirable resonance.

[0005] However, when using the device with announcement number CN212849264U, the machine needs to be stopped to change the workpiece after each drilling operation, which greatly extends the workpiece change time and reduces the hourly production capacity, making it difficult to meet the needs of mass production. Although it is possible to change the workpiece without stopping the machine, the drill bit rotates at high speed, and the operator needs to reach into the vicinity of the drill bit to pick up and put down the workpiece, which poses certain safety hazards. Utility Model Content

[0006] In view of this, the present invention provides a hole-opening device that can efficiently pick up and place workpieces without stopping the machine or requiring the operator's hand to reach near the drill bit by using at least two fixed clamps on a rotating turntable. This greatly improves the efficiency of workpiece processing and changeover, and solves the problem that traditional hole-opening devices require stopping the machine to change workpieces after each hole is drilled, which greatly extends the changeover time and reduces the hourly output, making it difficult to meet the needs of mass production. Although it is possible to change workpieces without stopping the machine, the drill bit rotates at high speed, and the changeover requires the operator's hand to reach near the drill bit to pick up and place workpieces, which poses certain safety hazards.

[0007] To solve the above-mentioned technical problems, this utility model provides a hole-opening device, including a chassis, at least one hole-punching machine mounted on the upper part of the chassis, a turntable rotatably mounted on the chassis, and at least two fixing clamps mounted on the turntable. The fixing clamps can clamp and fix the workpiece to be punched. The turntable can rotate with the fixing clamps and the workpiece to be punched held in the fixing clamps to directly below the hole-punching machine. The fixing clamps include a fixing frame mounted on the turntable, and a positioning slot and a suction element are provided on the upper part of the fixing frame. The positioning slot can guide and position the workpiece to be punched, and the suction element can suction and position the workpiece to be punched in the positioning slot. This utility model can achieve efficient fixing of the workpiece to be punched by at least two fixing clamps mounted on the turntable. It can realize that the punching of one workpiece does not affect the picking and placing of another workpiece, which greatly improves processing efficiency, reduces unnecessary downtime for production changes or waiting time during idle operation, and eliminates the need for the operator to put their hands near the hole-punching machine during the entire process, greatly improving safety and making operation more convenient and efficient.

[0008] The adsorption component includes a vacuum pump located at the bottom of the frame. A suction pipe is installed at the vacuum pump's intake port, penetrating the upper wall of the frame. An adsorption plate is located above the suction pipe. This invention allows for the creation of a negative pressure within the suction pipe and adsorption plate by activating the vacuum pump, facilitating the firm adsorption and fixation of workpieces pre-placed on the adsorption plate. This significantly increases the stability of the drilling operation. The straw is equipped with a protective cover on the outside. This utility model can effectively protect the straw by the protective cover and prevent it from being crushed by flying processing debris.

[0009] The adsorption plate is made of rubber, which can prevent excessive adsorption force from damaging the workpiece. Furthermore, the toughness of the rubber adsorption plate itself can prevent hard contact from damaging the workpiece.

[0010] The drilling machine includes a mounting frame on the upper part of the machine casing, a telescopic push rod at the lower part of the mounting frame, an electric push rod or a hydraulic push rod, a drive component at the output rod end of the telescopic push rod, a clamp at the output shaft end of the drive component, and a drill bit inside the clamp. This invention can rotate the drill bit together with the drive component by rotating it. At the same time, by activating the extension and retraction of the output rod of the telescopic push rod, the drive component and the drill bit move up and down to achieve drilling of the workpiece and retraction after drilling.

[0011] There are four fixed clamps, which are evenly distributed on the turntable, making it easy to clamp four workpieces at the same time, saving more time and effort.

[0012] The chassis is also equipped with a controller, which is a PLC controller. The controller is electrically connected to the telescopic push rod, drive components, servo motor and vacuum pump.

[0013] The driving component is a servo motor.

[0014] The servo motor is located inside the chassis on the axis of the turntable, and the output shaft of the servo motor is located at the bottom of the turntable.

[0015] A baffle is provided on the upper part of the machine casing and on the outside of the turntable. The baffle has loading and unloading ports. This utility model can effectively block grinding debris by using the baffle on the machine casing, preventing it from splashing everywhere and greatly reducing the difficulty of cleaning. Moreover, the loading and unloading ports can be used to make it convenient and efficient to pick up and put down materials.

[0016] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Solving the problem of low processing efficiency: The four evenly distributed fixed fixtures in this utility model, together with the turntable step switching, realize the parallel operation of "drilling-loading-picking". The loading and unloading can be completed simultaneously during drilling, which greatly shortens the processing cycle of a single workpiece and greatly improves the production capacity, thus solving the efficiency problem of traditional single-station downtime for changing parts.

[0017] 2. Solving the problem of poor operational safety: This utility model can physically separate the loading and unloading station from the drilling station through the turntable, so that the operator can complete the loading and unloading without having to get close to the high-speed drill bit; and the PLC is equipped with interlock protection, that is, the drilling machine is prohibited from starting when the turntable is rotating, which greatly reduces the risk of accidental activation and solves the safety hazards of manual operation.

[0018] 3. Solving the problem of unstable workpiece fixation: This utility model can achieve preliminary positioning by matching the positioning slot with the contour of the workpiece. With the help of vacuum adsorption to generate uniform pressure, the workpiece has no radial displacement. The rubber adsorption plate avoids hard contact, greatly reducing the scrap rate of indentation and solving the problems of clamping displacement and damage.

[0019] 4. Solving the problem of equipment wear and tear: This utility model uses a protective cover to block flying debris, which greatly reduces the clogging rate of the suction pipe; the vacuum pump response time is greatly shortened, the adsorption and release actions are fast and stable, the idle wear of parts is reduced, the maintenance cycle is greatly extended, and the problem of frequent maintenance is solved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the opening device of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is an isometric view of the hole-opening device of this utility model; Figure 4 This is a front view of the hole-opening device of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, chassis; 200, punching machine; 201, mounting bracket; 202, telescopic push rod; 203, driving component; 300, turntable; 400, fixing clamp; 410, fixing frame; 420, positioning slot; 430, suction component; 431, vacuum pump; 432, suction tube; 433, suction plate; 434, protective cover; 500, controller. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-4 As shown: This embodiment provides a hole-opening device, including a chassis 100, which is welded from Q235 steel plate and coated with antistatic paint. An internal partition is provided for installing components such as a vacuum pump 431 and a controller 500. The top surface is made of 304 stainless steel, which is wear-resistant and easy to clean. At least one hole punch 200 is provided on the upper part of the chassis 100. A turntable 300 is rotatably mounted on the chassis 100. The turntable 300 has a circular structure, is made of aluminum alloy, and its bottom center is rigidly connected to the servo motor output shaft. Figure 1As shown, there are four fixed clamps 400, spaced 90 degrees apart and evenly distributed on the turntable 300. This facilitates the simultaneous clamping of four workpieces, saving time and effort, and enabling continuous processing through station switching. The turntable 300 has at least two fixed clamps 400, which clamp and fix the workpiece to be punched. The turntable 300 rotates with the fixed clamps 400 and the workpiece clamped on them to directly below the punching machine 200. Each fixed clamp 400 includes a fixing frame 410 on the turntable 300, made of 45# steel with a chrome-plated surface for rust prevention, and bolted to the turntable 300. A positioning slot 420 is provided at the top, its shape matching the bottom of the workpiece, such as rectangular or circular, based on the specific outline of the workpiece, to achieve rapid workpiece guidance and positioning. The upper part of the fixing frame 410 is provided with a positioning slot 420 and a suction member 430. The positioning slot 420 can guide and position the workpiece to be punched, and the suction member 430 can suction and position the workpiece with holes in the positioning slot 420. This utility model can achieve efficient fixing of the workpiece to be punched by at least two fixing clamps 400 set on the turntable 300. It can realize that the punching of one workpiece does not affect the picking and placing of the other workpiece, which greatly improves the processing efficiency, reduces unnecessary downtime for production changeover or waiting time during idle operation, and the operator does not need to put their hand near the punching machine 200 during the whole process, which greatly improves the safety performance and makes the operation more convenient and efficient.

[0024] According to one embodiment of the present invention, such as Figure 1-4 As shown, the adsorption component 430 includes a vacuum pump 431 located at the bottom of the frame. A suction pipe 432 is installed at the suction port of the vacuum pump 431, penetrating the upper wall of the frame. An adsorption plate 433 is located above the suction pipe 432. The vacuum pump 431 is a Festo VADM-100 vacuum pump, installed at the bottom of the frame and connected to the adsorption plate 433 via the PU material suction pipe 432. The adsorption plate 433 is made of nitrile rubber with annular adsorption grooves on its surface to increase the adsorption area and ensure a secure fit of the workpiece. This invention can create a negative pressure in the suction pipe 432 and adsorption plate 433 by activating the vacuum pump 431, facilitating the firm adsorption and fixation of workpieces pre-placed on the adsorption plate 433, greatly increasing the stability of the drilling machine 200 during the drilling process. According to another embodiment of the present invention, such as Figure 1 and Figure 2As shown, a protective cover 434 is provided on the outside of the straw 432. The protective cover 434 is made of 304 stainless steel cylinder and is sleeved on the outside of the straw 432. It can block most of the splashing debris and protect the straw 432 from damage. This utility model can effectively protect the straw 432 through the protective cover 434, avoiding it from being crushed by splashing processing debris.

[0025] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the adsorption plate 433 is a rubber adsorption plate 433, which can avoid excessive adsorption force from damaging the workpiece. In addition, the rubber adsorption plate 433 can avoid hard contact pad damage to the workpiece due to its own toughness.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the drilling machine 200 includes a mounting bracket 201 mounted on the upper part of the chassis 100. The mounting bracket 201 is welded and fixed to the top of the chassis 100 using aluminum alloy profiles. An Airtac DT32 electric actuator is mounted on the lower part to drive the drill bit to move up and down, ensuring consistent drilling depth. A telescopic actuator 202 is provided at the lower part of the mounting bracket 201. The telescopic actuator 202 is an electric actuator or a hydraulic actuator. A drive component 203 is provided at the output rod end of the telescopic actuator 202. The drive component 203 is a servo motor. The drive component 203 is a Delta ECMA-C20604RS servo motor, which is fixed to the output end of the electric actuator. The output shaft is connected to a 40Cr... The material is used to connect the drill bit to the collet. The output shaft end of the drive component 203 is provided with a collet, and the drill bit is provided inside the collet. This utility model can rotate the drill bit together with the drive component 203 by rotating it. At the same time, the drive component 203 and the drill bit move up and down by extending and retracting the output rod of the telescopic push rod 202 to realize the drilling of the workpiece and the retraction operation after drilling.

[0027] The chassis 100 is also equipped with a controller 500, which is a PLC controller 500. The controller 500 is electrically connected to the telescopic push rod 202, the drive component 203, the servo motor and the vacuum pump 431. The controller 500 is a Siemens S7-200 SMARTSR40 PLC controller 500, which is connected to each actuator through a relay module and supports parameter setting, such as drilling depth, speed, and suction force, and is linked with the process.

[0028] The human-machine interface uses a 7-inch touchscreen from Kunlun Tongtai TPC7062Hi, which displays the equipment status in real time, such as the current workstation and drilling progress. It can be switched between manual and automatic modes for easy debugging and emergency operation.

[0029] A servo motor is installed inside the housing 100 located on the axis of the turntable 300. The output shaft of the servo motor is located at the lower part of the turntable 300. The servo motor is a Futaba S3010 model, which is installed at the central axis inside the housing 100. The output shaft passes through the top table of the housing 100 and connects to the turntable 300, which can drive the turntable 300 to rotate in steps of 90 degrees each time, ensuring that the workpiece is accurately aligned with the drilling machine 200.

[0030] According to another embodiment of the present invention, such as Figure 1 and Figure 4 As shown, a baffle is provided on the upper part of the housing 100 and on the outside of the turntable 300. The baffle has loading and unloading ports. This utility model can effectively block grinding debris by using the baffle provided on the housing 100, preventing it from splashing everywhere and greatly reducing the difficulty of cleaning. Moreover, the loading and unloading ports can be used to make it convenient and efficient to pick up and put down materials.

[0031] Working principle and usage of this utility model: First, it should be clarified that the hole-opening device involved in this utility model is mainly used for drilling various parts. Taking the hole-opening for the production of terminal block housings as an example, this utility model will explain its working principle and usage method in detail. The working principle is as follows: The operation of this device is based on a collaborative mechanism of "multi-station rotation - positioning adsorption - coordinated drilling", the specific principle of which is as follows: Workstation switching principle: The PLC controls the servo motor to drive the turntable to rotate in 300 steps. If there are four clamps, the rotation angle is 90 degrees each time. The four fixed clamps 400 sequentially cycle to "loading position - drilling position - inspection position - part removal position". When a workpiece is being processed at the drilling position, the operator can load the part at the loading position and remove the part at the part removal position, realizing parallel operation of the process without downtime.

[0032] Workpiece fixing principle: The workpiece is placed in the positioning slot 420, and the slot guides and restricts horizontal displacement; the PLC triggers the vacuum pump 431 to start, and a negative pressure is formed in the suction tube 432. The rubber adsorption plate 433 tightly adheres to the bottom of the workpiece through the annular groove, generating a vertical adsorption force to prevent the workpiece from jumping during drilling.

[0033] Drilling linkage principle: After the workpiece reaches the drilling position, the turntable 300 stops and triggers the positioning signal; the electric push rod drives the servo motor and the drill bit to descend, and at the same time the motor drives the drill bit to rotate; after contacting the workpiece, the drilling is completed at the set depth, then the push rod resets, the drill bit retracts, and the turntable 300 switches to the next station.

[0034] Safety control principle: The PLC monitors the status of each workstation in real time and sets up a triple interlock: the drilling machine 200 is prohibited from operating when the turntable 300 is rotating, the turntable 300 cannot rotate when the drilling machine 200 is working, and drilling will not start when the vacuum suction force is insufficient, ensuring equipment and operation safety.

[0035] The usage method is as follows: Equipment debugging: After powering on, select the workpiece model and set the parameters via the touch screen; check whether the turntable 300 rotates smoothly (without jamming at each 90-degree step), whether the vacuum pump 431 adsorbs or releases normally, and whether the drill bit is securely installed.

[0036] Batch processing flow: Loading: The operator places the workpiece into the positioning slot 420 of the loading position. After the slot is guided and positioned, the operator clicks "Adsorption" on the touch screen, the vacuum pump 431 is started, and the rubber adsorption plate 433 fixes the workpiece.

[0037] Workstation switching: Press "Automatic Start", the turntable rotates 300 degrees and 90 degrees, the workpiece to be processed enters the drilling position, and the processed workpiece moves to the picking position at the same time.

[0038] Drilling: After the workpiece is in position for drilling, the electric push rod drives the drill bit to descend and rotate, completing the drilling to the set depth. Then the push rod returns to its original position, and the drill bit retracts.

[0039] Retrieval: The operator clicks "Release" at the retrieval position, the vacuum pump 431 stops, the processed workpiece is removed, and a new workpiece is placed at the loading position. The operation is repeated.

[0040] Troubleshooting: If an insufficient adsorption alarm occurs, check if the suction tube 432 is leaking or if the adsorption plate 433 is worn, and replace any damaged parts; if the drill bit is stuck, the equipment will automatically stop, check if the workpiece is misaligned, clean up the debris, and then reset and restart via the touch screen.

[0041] Changeover operation: When changing to different workpieces, replace the corresponding positioning slot 420 and fix it with quick-change bolts. Call the new parameters on the touch screen without adjusting other parts.

[0042] This invention enables efficient workpiece handling without stopping the machine or requiring the operator to reach near the drill bit via at least two fixed clamps 400 mounted on a rotating turntable 300. This significantly improves workpiece processing and changeover efficiency, solving the problem that traditional drilling devices require stopping the machine to change workpieces after each drilling operation, greatly extending changeover time and reducing hourly production capacity, making it difficult to meet mass production needs. Although changeover can be performed without stopping the machine, the high-speed rotation of the drill bit necessitates the operator reaching near the drill bit to pick up or place workpieces, posing certain safety hazards.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A hole-drilling device, comprising a housing (100), wherein at least one hole punch (200) is disposed on the upper part of the housing (100), characterized in that: A turntable (300) is rotatably mounted on the chassis (100). At least two fixing clamps (400) are mounted on the turntable (300). The fixing clamps (400) can clamp and fix the workpiece to be punched. The turntable (300) can rotate the fixing clamps (400) and the workpiece to be punched held and fixed on the fixing clamps (400) to directly below the punching machine (200). The fixing clamps (400) include a fixing frame (410) mounted on the turntable (300). The upper part of the fixing frame (410) is provided with a positioning slot (420) and an adsorption component (430). The positioning slot (420) can guide and position the workpiece to be punched. The adsorption component (430) can adsorb and position the workpiece with holes in the positioning slot (420).

2. The opening device as described in claim 1, characterized in that: The adsorption component (430) includes a vacuum pump (431) located at the lower part of the frame. A suction pipe (432) is provided at the air inlet of the vacuum pump (431). The suction pipe (432) penetrates the upper wall of the frame. An adsorption plate (433) is provided at the upper part of the suction pipe (432).

3. The opening device as described in claim 2, characterized in that: The straw (432) is provided with a protective cover (434) on the outside.

4. The opening device as described in claim 2, characterized in that: The adsorption plate (433) is a rubber adsorption plate (433).

5. The opening device as described in claim 1, characterized in that: The drilling machine (200) includes a mounting bracket (201) disposed on the upper part of the housing (100). A telescopic push rod (202) is disposed on the lower part of the mounting bracket (201). A driving member (203) is disposed at the output rod end of the telescopic push rod (202). A clamp is disposed at the output shaft end of the driving member (203). A drill bit is disposed inside the clamp.

6. The opening device as described in claim 1, characterized in that: There are four fixing clamps (400), which are evenly distributed on the turntable (300).

7. The opening device as described in claim 1, characterized in that: The chassis (100) is also equipped with a controller (500).

8. The opening device as described in claim 5, characterized in that: The driving component (203) is a servo motor.

9. The opening device as described in claim 1, characterized in that: A servo motor is installed inside a housing (100) located on the axis of the turntable (300), and the output shaft end of the servo motor is located at the lower part of the turntable (300).

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