CN221849516U - Numerical control machine tool capable of reducing probability of mechanical injury accident - Google Patents

Abstract

The utility model discloses a numerical control machine tool capable of reducing the probability of mechanical injury accidents, which comprises a fixed operation table, wherein a supporting underframe is welded at the bottom end of the fixed operation table, an installation transverse plate is detachably arranged at the bottom end of the supporting underframe, a driving motor is arranged at one side of the installation transverse plate, one side of the fixed operation table is electrically connected with an operation center, and a fixed support column is embedded and arranged at the back of the fixed operation table. According to the utility model, the protection component, the driven teeth, the auxiliary teeth, the mounting side plate, the fixing bolt and the mounting plate are arranged, and the mutual matching of the protection component, the driven teeth and the mounting side plate are utilized, so that the rack on the side surface of the protection door and the driven teeth are meshed and rotated relatively when the protection door is pulled, the inside of the fixed operation table is protected, the mounting side plate at the bottom end of the auxiliary teeth is blocked by the limiting disc at the top end of the fixed rotating shaft, the protection door is prevented from being opened accidentally when being closed, and the safety performance of the device in processing is further improved.

Description

A CNC machine tool capable of reducing the probability of mechanical injury accidents

Technical Field

The utility model relates to the technical field of numerical control machine tools, and more specifically, to a numerical control machine tool capable of reducing the probability of mechanical injury accidents.

Background Art

CNC machine tools are mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, reaming and boring, etc. CNC machine tools automatically process the parts to be processed according to the pre-compiled processing program. First, the processing route, process parameters, tool motion trajectory, displacement, cutting parameters and auxiliary functions of the parts are compiled into a processing program sheet according to the instruction code and program format specified by the CNC machine tool. The contents of this program sheet are then recorded on the control medium and then input into the CNC device of the CNC machine tool to command the machine tool to process the parts. When the CNC machine tool processes the parts, in order to prevent the parts from accidentally falling off the chuck of the machine tool and being thrown out to cause damage to external personnel or equipment, a safety door is usually installed on the machine tool.

According to the existing patent with application number CN201910842864.0, it is known that it provides a safety door for CNC machine tools. The device includes a cover body, a mounting frame, a first slide rail, a door body, a second slide rail, a glass window, a locking mechanism, a protective sheet, a handle, a control button and a power cord. A mounting frame is welded to the outer side of the bottom of the cover body, and a first slide rail is embedded on the front side of the top of the cover body. The inner top of the first slide rail is slidably connected to the door body by clearance fit.

Although the above patent has certain advantages, it still has some disadvantages in actual use, such as: the existing safety door mechanism is generally opened and closed by means of a slide rail, and when locked, it is fixed by friction sleeve engagement through a card slot. When the machine tool is performing cutting work, the safety door is not firm enough, which may cause metal debris or metal parts to splash out. On the other hand, since the current safety door adopts a tempered glass structure, when larger debris or metal parts are dislocated and hit the four corners of the glass, it is easy to cause the tempered glass door to directly break and explode, thereby causing an accident.

Therefore, in view of this, the inventor, based on his many years of rich experience in design, development and actual production in the relevant industry, has conducted research and improvements on the existing structures and deficiencies, and provided a CNC machine tool that can reduce the probability of mechanical injury accidents, in order to achieve a more practical purpose.

Utility Model Content

In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a CNC machine tool that can reduce the probability of mechanical injury accidents. By setting a protection component, a driven tooth, an auxiliary tooth, a mounting side plate, a fixing bolt and a second mounting plate, and utilizing the mutual cooperation of the several, the protection door is pulled. At this time, the rack on the side of the protection door and the driven tooth are relatively meshed and rotated, so that the inside of the fixed operating table is protected. The mounting side plate at the bottom of the auxiliary tooth is stuck by the limiting disc at the top of the fixed shaft, thereby preventing the protection door from being accidentally opened when closed, and further improving the safety performance of the device during processing. By providing a protective angle plate, a first mounting plate, a buffer plate and a fixed slider, when larger metal chips collide with the four corners of the protection door during cutting, the buffer plate and the buffer spring on its side can be used to release force and buffer it. At the same time, the protective angle plate is used to directly fit and contact the four corners of the protection door, which can directly prevent external debris from colliding and contacting its surface, further improving the safety of the device, avoiding the probability of the protective door being broken during work, and solving the problems raised in the above-mentioned background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machine tool that can reduce the probability of mechanical injury accidents, comprising a fixed operating table, a supporting base frame welded to the bottom end of the fixed operating table, a mounting cross plate detachably installed at the bottom end of the supporting base frame, a driving motor is installed on one side of the mounting cross plate, a control center is electrically connected to one side of the fixed operating table, a fixed pillar is inlaid on the back side of the fixed operating table, a protective door is movably sleeved on one side of the fixed operating table, a fixed plate is fixedly installed on the bottom end of the fixed operating table; a fixed frame is inlaid on one side of the fixed plate, a roller is movably sleeved on the side of the fixed frame, a protective component is arranged on the fixed plate located on the side of the fixed operating table, a fixed handle is inlaid on the side of the protective door, a movable rack is inlaid on one side of the protective door, and a protective angle plate is detachably installed inside the fixed operating table.

In a preferred embodiment, a mounting hole is provided at the top of the fixing plate, a first mounting plate is integrally formed on one side of the protective angle plate, a fixing hole is provided on the surface of the first mounting plate, and the surface of the fixing hole is smooth.

In a preferred embodiment, a sliding slot is provided on one side of the first mounting plate, a mounting pin is embedded and installed inside the fixing hole, and a bottom end of the mounting pin extends to the inner surface of the mounting hole.

In a preferred embodiment, a fixed sliding block is slidably sleeved inside the sliding slot, a buffer plate is inlaid on the bottom end of the fixed sliding block, and a buffer spring is inlaid on one side of the buffer plate close to the protective angle plate.

In a preferred embodiment, a supporting cylinder is embedded and installed on one side of the first mounting plate. The number of the supporting cylinders is two, and the two supporting cylinders are respectively located on the left and right sides of the first mounting plate.

In a preferred embodiment, the protection component includes a fixed cylinder, the bottom end of the fixed cylinder is rotatably mounted inside a fixed plate, and the top end of the fixed plate is rotatably mounted with a rotating shaft.

In a preferred embodiment, the top end of the fixed cylinder is inlaid with a fixed sleeve, the surface of the fixed sleeve is covered with driven teeth, and the top end of the fixed cylinder is inlaid with a fixed sleeve.

In a preferred embodiment, the side surface of the driven tooth is meshedly connected with an auxiliary tooth, a second mounting plate is inlaid and mounted on one side of the auxiliary tooth, and a threaded hole is opened on the surface of the second mounting plate.

In a preferred embodiment, a fixing bolt is installed on the internal thread of the threaded hole, and the top end of the fixing bolt is threadedly connected to a limiting disc. A mounting circular hole is opened on one side of the limiting disc. A fixed rotating shaft is fixedly sleeved inside the mounting circular hole. The bottom end of the fixed rotating shaft extends to the inner surface of the fixed plate. The overall number of teeth of the driven teeth and the auxiliary teeth is greater than or equal to seventeen, and the surfaces of the driven teeth and the auxiliary teeth are evenly coated with a layer of gear lubricating oil.

Technical effects and advantages of the utility model:

1. The utility model sets a protection component, a driven tooth, an auxiliary tooth, a mounting side plate, a fixing bolt and a second mounting plate, and utilizes the mutual cooperation of the several to pull the protection door. At this time, the rack on the side of the protection door and the driven tooth are relatively meshed and rotated, so that the inside of the fixed operating table is protected. The mounting side plate at the bottom of the auxiliary tooth is locked by the limiting disc at the top of the fixed shaft, thereby preventing the protection door from being accidentally opened when closed, and further improving the safety performance of the device in processing;

2. The utility model is provided with a protective angle plate, a first mounting plate, a buffer plate and a fixed slider. When large metal chips collide with the four corners of the protective door during cutting, the buffer plate and the buffer springs on its side can be used to release force and buffer the metal chips. At the same time, the protective angle plate is used to directly fit and contact the four corners of the protective door to directly prevent external debris from hitting and contacting the surface, further improving the safety of the device and avoiding the probability of the protective door being broken during operation.

3. The utility model sets driven teeth and auxiliary teeth, and utilizes the overall number of driven teeth and auxiliary teeth to be greater than or equal to seventeen, so as to avoid the situation that under normal circumstances, when the tooth top line of the rack cutter just passes the limit meshing point, the cutter and the cut gear will continue to move, the blade will separate from the cut involute tooth profile, and continue to act on the next part. However, when the number of teeth is too small, the intersection of the gear tooth top and the meshing line will exceed the limit meshing point of the cut gear. The cutter will continue to move when the involute tooth profile part has been completely cut, and cut off a part of the gear tooth profile that has been cut at the root, causing root cutting problem, further ensuring the quality and overall high strength of the gear.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a partial enlarged structural schematic diagram of the utility model;

FIG3 is a schematic diagram of a three-dimensional assembly structure of a protection component of the present invention;

FIG4 is a schematic diagram of the internal structure of the protective door of the present invention;

FIG5 is a schematic diagram of a partial three-dimensional structure of the utility model;

FIG. 6 is an enlarged structural schematic diagram of point A in FIG. 4 of the present invention.

The accompanying drawings are marked as follows: 1. Fixed operating table; 2. Support frame; 3. Mounting cross plate; 4. Drive motor; 5. Control center; 6. Fixed pillar; 7. Protective door; 8. Fixed frame; 9. Roller; 10. Protection component; 11. Fixed plate; 12. Fixed handle; 13. Moving rack; 14. Protective angle plate; 15. Mounting hole; 16. First mounting plate; 17. Fixed hole; 18. Sliding slot; 19. Mounting pin; 20. Fixed slider; 21. Buffer plate; 22. Buffer spring; 23. Support cylinder; 101. Fixed cylinder; 102. Rotating shaft; 103. Fixed shaft sleeve; 104. Driven gear; 105. Fixed sleeve; 106. Auxiliary gear; 107. Mounting side plate; 108. Second mounting plate; 109. Threaded hole; 110. Fixed bolt; 111. Limiting disc; 112. Mounting circular hole; 113. Fixed rotating shaft.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

As shown in Figures 1 to 6, a CNC machine tool that can reduce the probability of mechanical injury accidents includes a fixed operating table 1, a supporting base frame 2 is welded to the bottom end of the fixed operating table 1, a mounting cross plate 3 is detachably installed on the bottom end of the supporting base frame 2, a driving motor 4 is installed on one side of the mounting cross plate 3, a control center 5 is electrically connected to one side of the fixed operating table 1, a fixed pillar 6 is inlaid on the back of the fixed operating table 1, a protective door 7 is movably sleeved on one side of the fixed operating table 1, a fixed plate 11 is fixedly installed on the bottom end of the fixed operating table 1, a fixed row frame 8 is inlaid on one side of the fixed plate 11, a roller 9 is movably sleeved on the side of the fixed row frame 8, and the fixed plate A protection component 10 is provided on the side of the fixed operating table 11, a fixed handle 12 is embedded in the side of the protection door 7, a movable rack 13 is embedded in one side of the protection door 7, a protective angle plate 14 is detachably installed inside the fixed operating table 1, a mounting hole 15 is provided at the top of the fixed plate 11, a first mounting plate 16 is integrally formed on one side of the protective angle plate 14, a fixing hole 17 is provided on the surface of the first mounting plate 16, the surface of the fixing hole 17 is smooth, a sliding groove 18 is provided on one side of the first mounting plate 16, a mounting pin 19 is embedded in the fixing hole 17, and the bottom end of the mounting pin 19 extends to the inner surface of the mounting hole 15.

The sliding groove 18 is internally slidably sleeved with a fixed slider 20, and a buffer plate 21 is inlaid and installed at the bottom end of the fixed slider 20, and a buffer spring 22 is inlaid and installed on the side of the buffer plate 21 close to the protective angle plate 14, and a supporting cylinder 23 is inlaid and installed on one side of the first mounting plate 16. The number of the supporting cylinders 23 is two, and the two supporting cylinders 23 are respectively located on the left and right sides of the first mounting plate 16. The protection component 10 includes a fixed cylinder 101, and the bottom end of the fixed cylinder 101 is rotatably sleeved with the inside of the fixed plate 11, and the top end of the fixed plate 11 is rotatably sleeved with a rotating shaft 102, and the top end of the fixed cylinder 101 is inlaid and sleeved with a fixed shaft sleeve 103, and the surface of the fixed shaft sleeve 103 is sleeved with a driven tooth 104, and the top end of the fixed cylinder 101 is inlaid and connected with a fixed sleeve 105, and the side of the driven tooth 104 is meshed and connected with an auxiliary tooth 106, and one side of the auxiliary tooth 106 is inlaid and installed with A second mounting plate 108 is provided with a threaded hole 109 on the surface of the second mounting plate 108, and a fixing bolt 110 is installed with the internal thread of the threaded hole 109. The top of the fixing bolt 110 is threadedly connected to a limiting disc 111, and a mounting circular hole 112 is provided on one side of the limiting disc 111. A fixed rotating shaft 113 is fixedly sleeved inside the mounting circular hole 112, and the bottom end of the fixed rotating shaft 113 extends to the inner surface of the fixing plate 11. The overall number of teeth of the driven teeth 104 and the auxiliary teeth 106 is greater than or equal to seventeen, and the surfaces of the driven teeth 104 and the auxiliary teeth 106 are evenly coated with a layer of gear lubricating oil. The second mounting plate 108 and the fixing bolt 110 are threadedly installed with each other, so that the mounting side plate 107 at the bottom end of the auxiliary teeth 106 can be stuck through the limiting disc 111 at the top of the fixing rotating shaft 113, thereby preventing the protective door from being accidentally opened when it is closed, and further improving the safety performance of the device during processing.

The total number of teeth of the driven teeth 104 and the auxiliary teeth 106 is greater than or equal to seventeen. The reason is that according to the principle that when a pair of gears are meshing and transmitting, the tooth profiles of the two wheels are conjugate curves to each other, and the processing is like a pair of gears meshing with each other. Finally, the tool cuts the tooth blank into an involute tooth profile. When processing the gear using this method, a part of the involute tooth profile of the cut gear tooth root may be cut off. This is usually also called root cutting, which will cause the thickness of the gear root to become thinner, the bending resistance to decrease, and the stability of the transmission to be affected. The fundamental reason for this phenomenon is that the number of gear teeth is too large. Small. Under normal circumstances, when the tooth top line of the rack cutter just passes the limit meshing point, the cutter and the cut gear will continue to move, and the blade will separate from the cut involute tooth profile and continue to act on the next part. However, when the number of teeth is too small, the intersection of the gear tooth top and the meshing line will exceed the limit meshing point of the cut gear. The cutter will continue to move when the involute tooth profile has been completely cut, and cut off a part of the gear tooth profile that has been cut at the root. Through calculation, the minimum index without root cutting is 17, so that the gear is not prone to root cutting during processing.

The working process of the utility model is as follows:

Step 1: The operator assembles the various components of the device normally, and then starts the device normally;

The second step: the operator places the workpiece inside the fixed operating table 1 and uses the existing cutting tools to set the program and perform the cutting operation. Then, the protective door 7 is slid to protect the inside of the fixed operating table 1. Then, the mounting side plate 107 at the bottom of the auxiliary tooth 106 is locked by the limiting disc 111 at the top of the fixed rotating shaft 113, so as to prevent the protective door from being accidentally opened when it is closed, thereby further improving the safety performance of the device during processing. At the same time, when larger metal chips collide with the four corners of the protective door 7 during the cutting process, the buffer plate 21 and the buffer spring 22 on its side can be used to release force and buffer it. At the same time, the protective angle plate 14 is used to directly fit and contact the four corners of the protective door 7 to directly prevent external debris from colliding with its surface, thereby further improving the safety of the device and avoiding the probability of the protective door 7 being broken during operation. Finally, the device completes the protection of the protective door 7 and avoids the wrong opening of the protective door 7.

Step 3: The operator shuts down the device normally, then checks whether the fixation between the various components of the device is normal, and then replaces and repairs the aged and severely worn parts inside the device.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a numerical control machine tool capable of reducing probability of mechanical injury accident, includes fixed operation panel (1), the bottom welding of fixed operation panel (1) has support chassis (2), install diaphragm (3) can be dismantled to the bottom of support chassis (2), driving motor (4) are installed to one side of installation diaphragm (3), its characterized in that: one side of the fixed operation table (1) is electrically connected with an operation center (5), a fixed support column (6) is embedded and installed on the back surface of the fixed operation table (1), a protective door (7) is movably sleeved on one side of the fixed operation table (1), and a fixed plate (11) is fixedly installed at the bottom end of the fixed operation table (1);

A fixed row frame (8) is embedded and installed on one side of the fixed plate (11), a rolling shaft (9) is movably sleeved on the side face of the fixed row frame (8), a protection component (10) is arranged on the side face of the fixed plate (11) positioned on the fixed operation table (1), a fixed handle (12) is embedded and installed on the side face of the protection door (7),

A movable rack (13) is embedded and installed on one side of the protective door (7), and a protective angle plate (14) is detachably installed in the fixed operation table (1).

2. The numerical control machine tool capable of reducing probability of mechanical injury accidents according to claim 1, wherein: the top of fixed plate (11) has seted up mounting hole (15), one side of protection scute (14) is formed with first mounting panel (16) in an organic whole, fixed orifices (17) have been seted up on the surface of first mounting panel (16), the surface of fixed orifices (17) is smooth.

3. The numerical control machine tool capable of reducing the probability of mechanical injury accidents according to claim 2, wherein: a sliding notch (18) is formed in one side of the first mounting plate (16), a mounting pin (19) is embedded in the fixing hole (17), and the bottom end of the mounting pin (19) extends to the inner surface of the mounting hole (15).

4. A numerical control machine tool for reducing the probability of mechanical injury accidents according to claim 3, characterized in that: the inside slip of sliding notch (18) has cup jointed fixed slider (20), the bottom of fixed slider (20) is inlayed and is installed buffer board (21), one side that is close to protection scute (14) of buffer board (21) is inlayed and is installed buffer spring (22).

5. A numerical control machine tool for reducing the probability of mechanical injury accidents according to claim 3, characterized in that: support columns (23) are embedded and installed on one side of the first mounting plate (16), the number of the support columns (23) is two, and the two support columns (23) are respectively located on the left side face and the right side face of the first mounting plate (16).

6. The numerical control machine tool capable of reducing probability of mechanical injury accidents according to claim 1, wherein: the protection assembly (10) comprises a fixed cylinder (101), the bottom end of the fixed cylinder (101) is rotatably sleeved with the inside of the fixed plate (11), and the top end of the fixed plate (11) is rotatably sleeved with a rotating shaft body (102).

7. The numerically-controlled machine tool capable of reducing the probability of mechanical injury accidents according to claim 6, wherein: the fixed shaft sleeve (103) is embedded and sleeved at the top end of the fixed cylinder (101), the driven teeth (104) are sleeved on the surface of the fixed shaft sleeve (103), and the fixed sleeve (105) is embedded and connected at the top end of the fixed cylinder (101).

8. The numerically-controlled machine tool capable of reducing the probability of a mechanical injury accident according to claim 7, wherein: the side meshing of driven tooth (104) is connected with auxiliary tooth (106), second mounting panel (108) are inlayed and are installed to one side of auxiliary tooth (106), screw hole (109) have been seted up on the surface of second mounting panel (108).

9. The numerically-controlled machine tool capable of reducing the probability of a mechanical injury accident according to claim 8, wherein: fixing bolt (110) is installed to the internal thread of screw hole (109), the top threaded connection of fixing bolt (110) has spacing disc (111), installation round hole (112) have been seted up to one side of spacing disc (111), fixed pivot (113) have been cup jointed to the inside of installation round hole (112), in the bottom of fixed pivot (113) extends to the internal surface of fixed plate (11), the whole number of teeth of driven tooth (104) and auxiliary tooth (106) is greater than or equal to seventeen, and the surface of driven tooth (104) and auxiliary tooth (106) evenly coats there is one deck gear lubrication fluid.