Single-side double-layer electric protective door for horizontal machining center

Abstract

The utility model discloses a single-side double-layer electric protective door for a horizontal machining center. The single-side double-layer electric protective door comprises a supporting seat, a driving mechanism, a transmission mechanism, an outer side protective door and an inner side protective door, the outer side protective door is higher than the inner side protective door, and the outer side protective door and the inner side protective door are the same in width. The driving mechanism comprises a servo motor, a speed reducer, a large driving wheel and a small driving wheel, and the tooth number of the large driving wheel is twice that of the small driving wheel; the transmission mechanism comprises a driven wheel, a long transmission belt, a short transmission belt, an outer transmission support and an inner transmission support, the long transmission belt is connected between the large driving wheel and the driven wheel, and the short transmission belt is connected between the small driving wheel and the driven wheel. The device has the advantages that the large door opening range and the small door opening and closing occupied space can be achieved, clamping of large parts and the small machine tool occupied area are guaranteed, control is easy, cost is low, installation and adjustment are easy, and the door opening range can be controlled according to the size of the parts.

Description

Technical Field

[0001] The utility model belongs to the field of protective structures for horizontal machining centers, and in particular relates to a single-sided double-layer electric protective door for a horizontal machining center. Background Art

[0002] Horizontal machining centers generally use a full protection structure to avoid the splashing of iron chips and cutting fluid during machining. In order to ensure that the workpiece can be placed inside the machine tool, a protective door will be added to the front side of the full protection structure to facilitate loading and unloading of the workpiece.

[0003] At present, protective doors are roughly divided into two structures: vertical opening and horizontal opening.

[0004] The vertical door opening structure will increase the height of the machine tool after the door is opened and is greatly affected by gravity. The protective door is prone to shaking due to uneven force when moving up and down, so it is seldom used.

[0005] The horizontal door opening structure is basically divided into a single-door structure with a single door on one side and a double-door structure with two doors on both sides. For a single-door structure with a single door on one side, if the single door is large, although the door opening range can be guaranteed, the rigidity is weak, the resistance is large when moving, and the machine tool occupies a large space after the door is fully opened; if the single door is small, it cannot guarantee a sufficient door opening range, which limits the size of the processed parts. For a double-door structure with two doors on both sides, although the size of a single door can be reduced, since the door opens to both sides, the machine tool will occupy a large space. If it is equipped with an automatic door, two sets of drive structures are required, which is costly.

[0006] In order to improve the processing efficiency of horizontal machining centers to meet the needs of automation, most of its protective doors use automatic doors with variable drive modes and structures, mostly pneumatic doors, hydraulically driven doors and electric doors. Pneumatic doors are driven by cylinders, which are slow and cannot control the door opening range. Different door opening ranges require cylinders with different strokes. There is no buffer and the jitter is large during movement. Hydraulically driven doors are driven by oil cylinders, which are similar to pneumatic doors. They are slow and cannot control the door opening range. Different door opening ranges require cylinders with different strokes. There is no buffer and the jitter is large during movement. Electric doors are driven by motors and can be used with gears, racks, gear chains, gear belts and other structures to transmit power to the protective doors, but the installation and adjustment of gears, racks, gear chains, etc. are more complicated. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a single-sided double-layer electric protective door for a horizontal machining center in view of the deficiencies in the prior art, which realizes a large door opening range and a small door opening and closing space, ensures the clamping of large parts and a smaller machine tool footprint, and has simple control, low cost, simple installation and adjustment, and the door opening range can be controlled according to the part size.

[0008] The technical solution adopted by the utility model to solve the above technical problems is: a single-sided double-layer electric protective door for a horizontal machining center, comprising a support seat, a driving mechanism, a transmission mechanism, and an outer protective door and an inner protective door of the same width, wherein the outer protective door is higher than the inner protective door, and the outer protective door and the inner protective door are respectively installed on the support seat so as to be movable left and right, and the outer protective door and the inner protective door are arranged front and back perpendicular to their moving directions, and the driving mechanism comprises a servo motor, a reducer, a large driving wheel and a small driving wheel, and the servo motor is installed on the support seat, and the output end of the servo motor is connected to the reducer, and the The large driving wheel and the small driving wheel are respectively connected to the output end of the reducer, the number of teeth of the large driving wheel is twice the number of teeth of the small driving wheel, the transmission mechanism includes three driven wheels, a long transmission belt, a short transmission belt, an outer transmission bracket and an inner transmission bracket, the three driven wheels are respectively fixed on the support seat, the long transmission belt is connected between the large driving wheel and the two driven wheels, the short transmission belt is connected between the small driving wheel and one driven wheel, the outer transmission bracket is respectively connected to the short transmission belt and the outer protective door, and the inner transmission bracket is respectively connected to the long transmission belt and the inner protective door.

[0009] The utility model single-sided double-layer electric protective door uses a servo motor as a power source and is equipped with a reducer to ensure speed while increasing output torque. It is matched with a large driving wheel and a small driving wheel with a multiple number of teeth, and with the cooperation of the large driving wheel, the small driving wheel, the driven wheel, the long transmission belt and the short transmission belt, the rotational motion of the large driving wheel and the small driving wheel is respectively converted into linear motion, so that at the same speed, the linear speed of the large driving wheel is twice the linear speed of the small gear, the movement speed of the long transmission belt is twice the movement speed of the short transmission belt, the running stroke of the inner protective door is twice the running stroke of the outer protective door, and the movement speed of the inner protective door is twice the movement speed of the outer protective door, so that the opening and closing of the outer protective door and the inner protective door are realized on the same side, synchronously, and simultaneously. After the door is fully opened, the outer protective door and the inner protective door are completely overlapped in the front and rear directions to reduce the space after the door is opened; after closing, the outer protective door and the inner protective door are completely separated in the left and right directions. The single-sided double-layer electric protective door of the utility model can realize a large door opening range and a small door opening and closing space, thereby ensuring the clamping of large parts and a small machine tool footprint.

[0010] The utility model adopts a single-sided double-layer electric protective door, which can drive two doors with a servo motor through the cooperation of a large driving wheel, a small driving wheel and a driven wheel. The control is simple and the cost can be effectively controlled. The servo motor drive can control the door opening stroke by controlling the number of rotations of the servo motor. When clamping small parts, the protective door does not need to be fully opened. At this time, controlling the door opening range can shorten the door opening and closing time and improve the overall processing efficiency. Through belt drive, the installation and adjustment are simple, the structure is reliable, the price is low, and the maximum operating stroke of the outer protective door and the inner protective door can be changed by changing the position of the driven wheel and the length of the belt, thereby achieving the maximum door opening range of the protective door.

[0011] Preferably, the support seat is provided with a first short linear guide and a first long linear guide parallel to each other, the full protection structure where the outer protective door and the inner protective door are located is provided with a second short linear guide and a second long linear guide parallel to each other, the upper end and the lower end of the outer protective door are provided with a first upper slider and a first lower slider respectively, the first lower slider and the first upper slider are slidably mounted on the first short linear guide and the second short linear guide respectively, the upper end and the lower end of the inner protective door are provided with a second upper slider and a second lower slider respectively, the second lower slider and the second upper slider are slidably mounted on the first long linear guide and the second long linear guide respectively. The outer protective door and the inner protective door are both supported and guided by linear guides, with strong support rigidity, low friction during movement, and high overall stability.

[0012] Preferably, each driven wheel comprises a spindle, a gear, a bearing, an anti-slip ring and a locking nut, wherein the bearing is mounted on the outside of the spindle, the anti-slip ring is arranged on the front side of the bearing, the gear is mounted on the outside of the bearing, and the spindle is locked and fixed on the support seat by the locking nut. The driven wheel is installed with a bearing, which can effectively reduce rolling friction and ensure support rigidity; the spindle is locked on the support seat by the locking nut, and will not loosen during movement, ensuring the locking torque.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model adopts a two-layer door structure consisting of an outer protective door and an inner protective door for a single-sided double-layer electric protective door for a horizontal machining center. The operating stroke of the inner protective door is twice the operating stroke of the outer protective door, so that the maximum door opening range is twice the door width, and it can be ensured that after the door is fully opened, the protective door and the inner protective door completely overlap in the front and rear directions, reducing the space after the door is opened. After the door is closed, the outer protective door and the inner protective door are completely separated in the left and right directions, thereby achieving a large door opening range and a small door opening and closing space, ensuring the clamping of large parts and a smaller machine tool footprint. The utility model uses a single-sided double-layer electric protective door for a horizontal machining center, which can be driven by only one servo motor, and can achieve high-speed and high-torque output and fast and stable door opening and closing, and has simple control and low cost. At the same time, the door opening range is controllable, and the door opening range can be controlled according to the size of the parts, thereby reducing the door opening and closing time and improving the overall machining efficiency. Through belt transmission, the installation and adjustment are simple, the structure is reliable, and the price is low. In addition, the maximum operating stroke of the outer protective door and the inner protective door can be changed by changing the position of the driven wheel and the length of the belt, thereby achieving the maximum door opening range of the protective door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of a single-sided double-layer electric protective door for a horizontal machining center in the embodiment;

[0015] Figure 2 For the enlarged Figure 1 Middle AA section view;

[0016] Figure 3 For the enlarged Figure 1 Middle BB section view;

[0017] Figure 4 It is a front side view of the single-sided double-layer electric protective door for the horizontal machining center in the embodiment when the door is open;

[0018] Figure 5 It is a front side view of a closed state of a single-sided double-layer electric protective door for a horizontal machining center in an embodiment;

[0019] Figure 6 It is a rear side view of the single-sided double-layer electric protective door for the horizontal machining center in the embodiment in the closed state;

[0020] The specific reference numerals in the figure are as follows:

[0021] 1-support seat, 11-first short linear guide, 12-first long linear guide, 13-second short linear guide, 14-second long linear guide, 21-servo motor, 22-reducer, 23-large driving wheel, 24-small driving wheel, 31-driven wheel, 311-core shaft, 312-gear, 313-bearing, 314-anti-slip ring, 315-anti-loosening nut, 32-long transmission belt, 33-short transmission belt, 34-external transmission bracket, 35-inner transmission bracket, 41-outer protective door, 42-inner protective door, 43-first upper slider, 44-second upper slider. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] The horizontal machining center of the embodiment uses a single-sided double-layer electric protective door, such as Figure 1-Figure 6 As shown, it includes a support base 1, a driving mechanism, a transmission mechanism, and an outer protective door 41 and an inner protective door 42 of the same width. The height of the outer protective door 41 is higher than that of the inner protective door 42 by the thickness of a door. The outer protective door 41 and the inner protective door 42 are respectively installed on the support base 1 so as to be movable left and right. The outer protective door 41 and the inner protective door 42 are arranged front and back perpendicular to their moving directions. The driving mechanism includes a servo motor 21, a reducer 22, a large driving wheel 23 and a small driving wheel 24. The servo motor 21 is installed on the support base 1. The output end of the servo motor 21 is connected to the reducer 22. The large driving wheel 23 and the small driving wheel 24 are respectively connected to the output end of the reducer 22. The number of teeth of the large driving wheel 23 is twice the number of teeth of the small driving wheel 24. The transmission mechanism includes three driven wheels 31, A long transmission belt 32, a short transmission belt 33, an outer transmission bracket 34 and an inner transmission bracket 35, each driven wheel 31 includes a core shaft 311, a gear 312, a bearing 313, an anti-slip ring 314 and a lock nut 315, the bearing 313 is installed on the outside of the core shaft 311, the anti-slip ring 314 is arranged on the front side of the bearing 313, the gear 312 is installed on the outside of the bearing 313, the core shaft 311 is locked and fixed on the support seat 1 by the lock nut 315, the long transmission belt 32 is connected between the large driving wheel 23 and the two driven wheels 31, the short transmission belt 33 is connected between the small driving wheel 24 and a driven wheel 31, the outer transmission bracket 34 is respectively connected to the short transmission belt 33 and the outer protective door 41, and the inner transmission bracket 35 is respectively connected to the long transmission belt 32 and the inner protective door 42.

[0024] Specifically, in this embodiment, a first short linear guide 11 and a first long linear guide 12 which are parallel to each other are installed on the support seat 1, and a second short linear guide 13 and a second long linear guide 14 which are parallel to each other are installed on the full protection structure (not shown in the figure) where the outer protective door 41 and the inner protective door 42 are located, and a first upper slider 43 and a first lower slider (not shown in the figure) are installed on the upper and lower ends of the outer protective door 41, respectively, and the first lower slider and the first upper slider 43 are slidably installed on the first short linear guide 11 and the second short linear guide 13, respectively, and a second upper slider 44 and a second lower slider (not shown in the figure) are installed on the upper and lower ends of the inner protective door 42, respectively, and the second lower slider and the second upper slider 44 are slidably installed on the first long linear guide 12 and the second long linear guide 14, respectively.

[0025] After the above-mentioned horizontal machining center is installed with a single-sided double-layer electric protective door, during use, under the drive of the servo motor 21, the large driving wheel 23 and the small driving wheel 24 rotate synchronously, and at the same speed, the linear speed of the large driving wheel 23 is twice the linear speed of the small gear 312, the movement speed of the long transmission belt 32 is twice the movement speed of the short transmission belt 33, the running stroke of the inner protective door 42 is twice the running stroke of the outer protective door 41, and the movement speed of the inner protective door 42 is twice the movement speed of the outer protective door 41, thereby realizing the same-side, synchronous, and simultaneous movement of the outer protective door 41 and the inner protective door 42 when opening and closing. After the door is fully opened, the outer protective door 41 and the inner protective door 42 completely overlap in the front-to-back direction to reduce the space after opening the door; after closing the door, the outer protective door 41 and the inner protective door 42 are completely separated in the left-right direction. The above-mentioned horizontal machining center uses a single-sided double-layer electric protective door to achieve a large door opening range and a small door opening and closing space, ensuring the clamping of large parts and a smaller machine tool footprint.

Claims

1. A single-sided double-layer electric protective door for a horizontal machining center, characterized in that: It includes a support seat, a driving mechanism, a transmission mechanism, and an outer protective door and an inner protective door of the same width. The height of the outer protective door is higher than that of the inner protective door. The outer protective door and the inner protective door are respectively installed on the support seat so as to be movable left and right. The outer protective door and the inner protective door are arranged front and back perpendicular to their moving directions. The driving mechanism includes a servo motor, a reducer, a large driving wheel and a small driving wheel. The servo motor is installed on the support seat. The output end of the servo motor is connected to the reducer. The large driving wheel and the small driving wheel are respectively connected to the reducer. The output end of the machine is connected, the number of teeth of the large driving wheel is twice the number of teeth of the small driving wheel, the transmission mechanism includes three driven wheels, a long transmission belt, a short transmission belt, an outer transmission bracket and an inner transmission bracket, the three driven wheels are respectively fixed on the support seat, the long transmission belt is connected between the large driving wheel and two of the driven wheels, the short transmission belt is connected between the small driving wheel and one of the driven wheels, the outer transmission bracket is respectively connected to the short transmission belt and the outer protective door, and the inner transmission bracket is respectively connected to the long transmission belt and the inner protective door.

2. The single-sided double-layer electric protective door for a horizontal machining center according to claim 1 is characterized in that: A first short linear guide and a first long linear guide which are parallel to each other are installed on the support seat, and a second short linear guide and a second long linear guide which are parallel to each other are installed on the full protection structure where the outer protective door and the inner protective door are located. A first upper slider and a first lower slider are installed on the upper and lower ends of the outer protective door, respectively, and the first lower slider and the first upper slider are slidably installed on the first short linear guide and the second short linear guide, respectively. A second upper slider and a second lower slider are installed on the upper and lower ends of the inner protective door, respectively, and the second lower slider and the second upper slider are slidably installed on the first long linear guide and the second long linear guide, respectively.

3. The single-sided double-layer electric protective door for a horizontal machining center according to claim 1 is characterized in that: Each of the driven wheels includes a core shaft, a gear, a bearing, an anti-slip ring and a lock nut. The bearing is installed on the outside of the core shaft, the anti-slip ring is arranged on the front side of the bearing, the gear is installed on the outside of the bearing, and the core shaft is locked and fixed on the support seat by the lock nut.

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