A spindle rotation driving mechanism of a hardware machining machine

Abstract

The utility model discloses a kind of main shaft rotation driving mechanism of hardware machining machine, it includes fixed plate, is fixed on upper support frame;Several servo motors, install on fixed plate, and along the circumferential interval of fixed plate Around arrangement;Driving wheel, linkage in servo motor;Driven wheel, install above machining tool bit;Synchronous belt, connect between one driving wheel and at least one driven wheel, the utility model is installed multiple servo motors on fixed plate, each servo motor can individually drive respective driving wheel rotation, since including one driving wheel and at least one driven wheel in same synchronous belt wheel subassembly, equivalent to one servo motor can drive one or more driven wheel rotation, and the rotating speed of each servo motor can be individually adjusted according to demand, parameter adjustment is convenient, control precision, furthermore, synchronous belt does not slip in equipment operation process, stable operation can satisfy the high-speed operation of equipment, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of hardware processing equipment technology, and in particular to a spindle rotation drive mechanism for a hardware processing machine. Background Technology

[0002] The working principle of a precision machining center for hardware involves high-precision cutting, forming, or surface treatment technologies, which aim to process metal raw materials into parts that meet strict requirements for size, shape, and surface quality, so as to be suitable for precision assembly on different products.

[0003] Currently, precision machining machines for hardware parts on the market are generally divided into linear stepper type and rotary type. Linear stepper type precision machining machines use a chain as the medium and indexing cams to achieve stepping conveying action. During the chuck conveying process, processing is performed at various workstations. This type of equipment has many chucks, the chain is prone to misalignment, and the processing accuracy is relatively poor. Therefore, rotary type precision machining machines are now more commonly chosen for precision machining of hardware parts.

[0004] Regarding disc-type precision metal processing machines, Chinese patent CN201710525911.X discloses a disc-type multi-station pen tip processing device. In this design, the rotation drive of the processing cutter head uses a servo motor and multi-stage pulleys to control the rotational speed of the rotating wheel. In practical applications, since there is only one servo motor, although the speed of each rotating wheel can be made different through the multi-stage pulleys, it is not possible to adjust the speed of a single rotating wheel. If speed adjustment of a single rotating wheel is required, the corresponding pulley must be disassembled and replaced, which is cumbersome. In addition, the belts between the pulleys mentioned above are round belts, which are prone to slippage during operation and are not suitable for high-speed operation of the equipment, requiring improvement. Utility Model Content

[0005] To solve the above problems, this utility model proposes a spindle rotation drive mechanism for a hardware processing machine.

[0006] The technical solution adopted by this utility model is: a spindle rotation drive mechanism for a hardware processing machine. The hardware processing machine includes a frame and an upper support frame installed above the frame. The upper support frame is used to support a chassis. A middle plate and an upper plate are arranged sequentially above the chassis. A plurality of mutually spaced processing cutters are arranged around the edge of the upper plate. The spindle rotation drive mechanism includes:

[0007] The fixing plate is fixed to the upper support frame;

[0008] Several servo motors are mounted on the fixed plate and arranged at intervals around the fixed plate in a circumferential manner.

[0009] The drive wheel is linked to the servo motor;

[0010] The driven wheel is mounted above the machining head;

[0011] A timing belt connects one of the driving pulleys and at least one driven pulley.

[0012] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0013] Preferably, the upper end of the upper support frame is provided with a top cover, the fixing plate is disposed below the top cover, and a plurality of fixing rods are provided between the top cover and the fixing plate.

[0014] Preferably, the servo motor is fixed above the fixed plate by a motor mounting plate, and the drive wheel is located below the fixed plate.

[0015] Preferably, the fixing plate is provided with a plurality of clearance openings, and the clearance openings correspond to the positions of the drive wheel.

[0016] Preferably, there are one, two, or three driven pulleys connected to the same synchronous belt.

[0017] Preferably, the width of both the driving pulley and the driven pulley is greater than the bandwidth of the timing belt.

[0018] More preferably, the timing belt is a quick-release type installed between the driving pulley and the driven pulley.

[0019] Compared with the prior art, this utility model has the following beneficial effects:

[0020] 1. By mounting multiple servo motors on the fixed plate, each servo motor can drive its own drive pulley to rotate independently. Since the same synchronous belt pulley assembly includes one drive pulley and at least one driven pulley, it is equivalent to one servo motor driving one or more driven pulleys to rotate. Furthermore, through this servo motor, the speed of one or more driven pulleys can be precisely controlled. The speed of each servo motor can be adjusted individually according to requirements. Parameter adjustment is convenient and control is precise.

[0021] 2. A synchronous belt is used to drive the driven pulley to rotate synchronously with the driving pulley. The synchronous belt will not slip, the operation is stable, and it can meet the high-speed operation of the equipment.

[0022] 3. The timing belt is a quick-release type installed between the driving pulley and the driven pulley, which is easy to remove. After the timing belt is removed, the machining head can be repaired or replaced. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a partial front view of a hardware processing machine according to one embodiment of this application;

[0025] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0026] Figure 3 This is a side view of the spindle rotation drive mechanism mounted on a metal processing machine in one embodiment of this application;

[0027] Figure 4 This is an assembly structure diagram of the fixed plate, servo motor and drive wheel in one embodiment of this application;

[0028] Figure 5 This is a top view of a spindle rotation drive mechanism mounted on a metalworking machine according to an embodiment of this application;

[0029] Figure 6 This is an overall structural diagram of the hardware processing machine involved in one embodiment of this application.

[0030] The attached diagram is labeled as follows: 1-frame, 2-upper support frame, 21-top cover, 22-fixed rod, 3-fixed plate, 31-gap opening, 4-servo motor, 41-drive wheel, 5-upper plate, 6-processing cutter head, 61-driven wheel.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] 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.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Detailed implementation plan: See below Figures 1-6 This utility model relates to a spindle rotation drive mechanism for a hardware processing machine. The hardware processing machine includes a frame 1 and an upper support frame 2 mounted above the frame 1. The upper support frame 2 is used to support the chassis. A middle plate and an upper plate 5 are arranged sequentially above the chassis. A plurality of processing cutters 6 are arranged around the edge of the upper plate 5 at intervals. The spindle rotation drive mechanism includes:

[0036] Fixing plate 3 is fixed on upper support frame 2;

[0037] Several servo motors 4 are mounted on a fixed plate 3 and arranged around the fixed plate 3 at circumferential intervals.

[0038] The drive wheel 41 is linked to the servo motor 4;

[0039] Driven wheel 61 is mounted above machining head 6;

[0040] A timing belt is connected between one of the driving pulleys 41 and at least one driven pulley 61.

[0041] In this embodiment, the timing belt, along with the driving pulley 41 and the driven pulley 61 located on the timing belt, together form a timing belt pulley assembly.

[0042] Please see Figure 1 , Figure 3 As shown in Figure 6, in this embodiment, the upper end of the upper support frame 2 is provided with a top cover 21, the fixing plate 3 is provided below the top cover 21, and a number of fixing rods 22 are provided between the top cover 21 and the fixing plate 3.

[0043] Here, the fixing plate 3 is fixed to the bottom of the top cover 21 by fixing rods 22. There are multiple fixing rods 22 to ensure the stability of the fixing plate 3, so that multiple servo motors 4 can be installed on the fixing plate 3.

[0044] Then, please see Figure 4 As can be seen, in this embodiment, the servo motor 4 is fixed above the fixed plate 3 by the motor mounting plate, and the drive wheel 41 is located below the fixed plate 3.

[0045] In addition, in this embodiment, the fixed plate 3 is provided with a plurality of clearance openings 31, and the clearance openings 31 correspond to the positions of the drive wheel 41.

[0046] Here, since the servo motor 4 is relatively heavy, it is mounted on the top of the mounting plate 3 to ensure stable installation of the servo motor 4. In addition, by providing a clearance opening 31 on the mounting plate 3, it is convenient to install the drive wheel 41 on the motor shaft of the servo motor 4, and to install a timing belt between the drive wheel 41 and the driven wheel 61.

[0047] It should be noted that in this embodiment, there is one, two, or three driven pulleys 61 connected to the same timing belt.

[0048] As is well known, the driving pulley 41 and driven pulley 61 located on the same synchronous belt rotate at the same speed. Therefore, by adjusting the number of driven pulleys 61 located on the same synchronous belt, a single servo motor 4 can control different numbers of driven pulleys 61 to maintain the same speed. In practical applications, machining heads 6 requiring the same speed can be rationally placed on the same synchronous belt according to the required speed of the machining heads 6 at each workstation. This reduces the number of servo motors 4, thereby reducing energy consumption and equipment costs.

[0049] For ease of understanding, the following example is provided: Please refer to Figure 3 and Figure 5 As can be seen, when there are 16 machining ends on the upper plate 5, four servo motors 4 can be set on the fixed plate 3. The four servo motors 4 respectively drive four driving wheels 41 to rotate. The four driving wheels 41 are respectively set on different synchronous belts, and the four synchronous belts are respectively equipped with one, one, two, and three driven wheels 61. As described above, when there are three driven wheels 61 on the same synchronous belt, the servo motor 4 corresponding to the driving wheel 41 on the synchronous belt can control the speed of the three driven wheels 61 by controlling the speed of the driving wheel 41. The parameters of the servo motor 4 are easy to adjust, the control is precise, and each servo motor 4 can be speed adjusted independently.

[0050] Note that since this application uses a synchronous belt pulley structure to drive the machining head 6, the synchronous belt will not slip during operation, thus enabling high-speed driving of the machining head 6.

[0051] In addition, the use of a servo motor 4 + synchronous pulley assembly to drive the machining head 6 to rotate ensures very smooth operation during equipment startup and shutdown.

[0052] Furthermore, in this embodiment, the timing belt is installed between the driving pulley 41 and the driven pulley 61 in a quick-release manner (the quick-release principle of the timing belt is existing technology and will not be explained in detail here). When it is necessary to replace or repair the machining head 6, the timing belt can be quickly removed, making the operation convenient.

[0053] In this embodiment, the widths of both the driving wheel 41 and the driven wheel 61 are greater than the bandwidth of the synchronous belt.

[0054] During the operation of the metal processing machine, the processing head 6 needs to be driven down to process the metal parts fixed on the chuck. As the processing head 6 descends, the driven wheel 61 also descends, while the driving wheel 41 remains in its original position. At this time, there is a height difference between the driving wheel 41 and the driven wheel 61. Since the width of both the driving wheel 41 and the driven wheel 61 is greater than the bandwidth of the synchronous belt, the normal operation of the synchronous belt will not be affected even though there is a height difference between them.

[0055] The spindle rotation drive mechanism of this utility model is described above only as a preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. All equivalent structural transformations made under the inventive concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A spindle rotation drive mechanism for a hardware processing machine, the hardware processing machine comprising a frame and an upper support frame mounted above the frame, the upper support frame being used to support a chassis, a middle plate and an upper plate being sequentially arranged above the chassis, the upper plate having a plurality of mutually spaced processing cutters arranged around its edge, characterized in that, The spindle rotation drive mechanism includes: The fixing plate is fixed to the upper support frame; Several servo motors are mounted on the fixed plate and arranged at intervals around the fixed plate in a circumferential manner. The drive wheel is linked to the servo motor; The driven wheel is mounted above the machining head; A timing belt connects one of the driving pulleys and at least one driven pulley.

2. The spindle rotation drive mechanism of a hardware processing machine according to claim 1, characterized in that, The upper end of the upper support frame is provided with a top cover, the fixing plate is located below the top cover, and a number of fixing rods are provided between the top cover and the fixing plate.

3. The spindle rotation drive mechanism of a hardware processing machine according to claim 2, characterized in that, The servo motor is fixed above the fixed plate by a motor mounting plate, and the drive wheel is located below the fixed plate.

4. The spindle rotation drive mechanism of a hardware processing machine according to claim 3, characterized in that, The fixed plate is provided with several clearance openings, and the clearance openings correspond to the positions of the drive wheel.

5. The spindle rotation drive mechanism of a hardware processing machine according to any one of claims 1-4, characterized in that, There are one, two, or three driven pulleys connected to the same synchronous belt.

6. The spindle rotation drive mechanism of a hardware processing machine according to claim 5, characterized in that, The width of both the driving wheel and the driven wheel is greater than the bandwidth of the timing belt.

7. The spindle rotation drive mechanism of a hardware processing machine according to claim 1, characterized in that, The timing belt is a quick-release type installed between the driving pulley and the driven pulley.

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