Feeding and discharging mechanism of CNC machining center

Abstract

The utility model belongs to the technical field of CNC machining center feeding and discharging, and particularly relates to a CNC machining center feeding and discharging mechanism which comprises a pair of machine frames used for supporting a feeding mechanism and further comprises telescopic shafts, clamping shafts and a second transmission supporting plate, the telescopic shafts are slidably connected in the machine frames, the telescopic ends are fixedly connected with the first transmission supporting plate, and the clamping shafts are fixedly connected with the second transmission supporting plate. A fixing block is fixedly connected to the surface of the first transmission supporting plate, an extending mechanism is arranged on the surface of the fixing block, a rotating shaft is arranged on the surface of the fixing block, a telescopic shaft moves upwards, meanwhile, a clamping shaft can be driven to move, the clamping shaft is clamped in a notch through cooperation of gravity and a spring, and the height of the rack is adjusted; therefore, the problems that the height of the machine frame cannot be adjusted, machining centers with different heights cannot be correspondingly adjusted according to the needed height, use is still inconvenient, and limitation is large are solved, and practicability is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loading and unloading materials in a CNC machining center, in particular to a loading and unloading material mechanism in a CNC machining center. Background Art

[0002] CNC is the abbreviation of computer numerical control machine tool, which is an automated machine tool controlled by a program. According to the position of the spindle in space, it can be divided into vertical machining center and horizontal machining center.

[0003] A Chinese patent application CN202022427742.6 discloses a loading and unloading mechanism for a CNC machining center, the key points of its technical solution are: it includes a frame, a first transmission support plate arranged on both sides of the frame, a fixed plate arranged on the inner side of the first transmission support plate, a first transmission plate arranged on the first transmission support plate, and a second transmission support plate arranged on the first transmission plate; a plurality of rollers are rotatably arranged on the second support plate; a plurality of first rotating shafts and second rotating shafts are arranged side by side on the first transmission support plate, and the first rotating shafts and the second rotating shafts form a first gap relative to the outer side of the first transmission support plate, and form a second gap relative to the inner side of the first transmission support plate. The utility model solves the problems in the prior art that the transmission control structure of the loading and unloading mechanism of the CNC machining center is relatively complex, the control accuracy is poor, and the cost is high, it is difficult to be used in a miniaturized CNC machining center, and the applicability is poor.

[0004] The CNC loading and unloading mechanisms in the prior art and the above technologies cannot adjust the height of the frame during use. For machining centers of different heights, corresponding adjustments cannot be made according to the required height, and there are still problems of inconvenience in use and great limitations. Therefore, a CNC machining center loading and unloading mechanism is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and solve the problem that the height of the frame cannot be adjusted, and for machining centers of different heights, corresponding adjustments cannot be made according to the required height, and there are still problems of inconvenience in use and great limitations, the utility model proposes a loading and unloading mechanism for a CNC machining center.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a CNC machining center loading and unloading mechanism described in the utility model includes a pair of frames for supporting the loading mechanism;

[0007] It also includes a telescopic shaft, a clamping shaft and a transmission support plate 2;

[0008] The telescopic shaft is slidably connected in the frame, and the telescopic end is fixedly connected to a transmission support plate 1, a surface of the transmission support plate 1 is fixedly connected to a fixed block, an extension mechanism is provided on the surface of the fixed block, a rotating shaft is provided on the surface of the fixed block, and the transmission support plate 2 is slidably connected to the surface of the fixed block through the rotating shaft;

[0009] The telescopic shaft surface is provided with a groove, a clamping shaft is rotatably connected to the groove via an elastic member, and a plurality of notches are provided on the surface of the frame relative to the clamping shaft;

[0010] The grooves are provided with two, and a pair of the grooves and a telescopic shaft, and the central axes of the telescopic shafts are symmetrically distributed.

[0011] Preferably, two telescopic shafts are provided and are slidably connected on two rack surfaces respectively. A connecting rod is provided on the surface of the telescopic shaft, and the connecting rod is used to connect the two telescopic shafts.

[0012] Preferably, a cavity is opened on the surface of the telescopic shaft, both ends of the connecting rod pass through the cavity and are rotatably connected thereto, and a connecting rope is fixedly connected to the surface of the connecting rod located in the cavity, and one end of the connecting rope away from the connecting rod is fixedly connected to the surface of the clamping shaft.

[0013] Preferably, the surface of the card shaft is connected to a rotating wheel.

[0014] Preferably, a connecting block is fixedly connected to the surface of the connecting rod, and a top shaft is slidably connected to the surface of the connecting block via a spring, the end of the top shaft is an arc surface, a sliding groove is provided on the surface of the telescopic shaft, the sliding groove is arc-shaped, and a limiting hole is provided in the sliding groove.

[0015] Preferably, a plurality of extension blocks are arranged on one side of the fixed block, a pair of limit grooves are opened on the surface of each of the extension blocks, a plurality of frame rods 1 and 2 are movably connected in the limit grooves, each pair of frame rods 1 and 2 are of "X" shape design, and the head and tail of each pair of frame rods 1 and 2 are rotatably connected by hinges, a reinforcing shaft is rotatably connected to the surface of the fixed block through a thread, the other end of the reinforcing shaft passes through the extension block for sliding connection, the reinforcing shaft passes through an extension block farthest from the fixed block for rotational connection, and a knob is fixedly connected to the surface of the reinforcing shaft.

[0016] Preferably, the cross section of the connecting rod is circular, and an anti-skid pad is bonded to the surface, and the surface of the anti-skid pad is provided with anti-skid patterns.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model moves the telescopic shaft upward and drives the clamping shaft to move at the same time. The clamping shaft relies on gravity and the spring to clamp the clamping shaft in the slot to adjust the height of the frame, thereby solving the problem that the height of the frame cannot be adjusted. For machining centers of different heights, corresponding adjustments cannot be made according to the required height, and there are still problems of inconvenience in use and great limitations, which greatly improves the practicality.

[0019] 2. The utility model can achieve the effect of equidistant and synchronous sliding of multiple extension blocks through the cross-designed frame rods 1 and 2, avoiding uneven sliding distances and unequal distances between the rotating shafts, which would cause unstable sliding of the transmission support plate 2 during loading and unloading, affecting loading. The rigidity of the frame rods 1 and 2 can be improved by strengthening the shaft, making them less likely to deform, thereby ensuring the supporting effect of the extension blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the rack structure of the first embodiment;

[0022] Figure 2 For Example 1 Figure 1 Schematic diagram of the structure at A in the middle;

[0023] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a rack of Embodiment 1;

[0024] Figure 4 For Example 1 Figure 3 Schematic diagram of the structure at B in the middle;

[0025] Figure 5 This is a schematic diagram of the limiting groove structure of the first embodiment;

[0026] Figure 6 This is a schematic diagram of the reinforced shaft structure of the first embodiment;

[0027] Figure 7 This is a schematic structural diagram of the anti-slip mat of the second embodiment.

[0028] In the figure: 1, frame; 3, transmission support plate 2; 5, rotating shaft; 6, fixing block; 7, transmission support plate 1; 8, telescopic shaft; 9, connecting rod; 11, connecting block; 12, top shaft; 13, slide groove; 14, limiting hole; 15, clamping shaft; 16, notch; 17, cavity; 18, groove; 21, rotating wheel; 22, connecting rope; 24, rack rod 1; 25, rack rod 2; 26, extension block; 27, limiting groove; 28, reinforcing shaft; 29, knob; 30, anti-slip pad. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1

[0031] See also Figure 1-6 As shown, a loading and unloading mechanism of a CNC machining center includes a pair of frames 1 for supporting the loading mechanism;

[0032] It also includes a telescopic shaft 8, a card shaft 15 and a transmission support plate 2 3;

[0033] The telescopic shaft 8 is slidably connected in the frame 1, and the telescopic end is fixedly connected to a transmission support plate 7, the surface of the transmission support plate 7 is fixedly connected to a fixed block 6, the surface of the fixed block 6 is provided with an extension mechanism, the surface of the fixed block 6 is provided with a rotating shaft 5, and the transmission support plate 2 3 is slidably connected to the surface of the fixed block 6 through the rotating shaft 5;

[0034] The telescopic shaft 8 has a groove 18 on its surface, and a clamping shaft 15 is rotatably connected to the groove 18 via an elastic member. A plurality of notches 16 are formed on the surface of the frame 1 at positions corresponding to the clamping shaft 15.

[0035] The grooves 18 are provided with two, a pair of the grooves 18 and a telescopic shaft 8, and the central axis of the telescopic shaft 8 is symmetrically distributed. The telescopic shaft 8 is provided with two, and is slidably connected on the surfaces of the two frames 1 respectively. The surface of the telescopic shaft 8 is provided with a connecting rod 9, and the connecting rod 9 is used to connect the two telescopic shafts 8; when working, the connecting rod 9 is slid so that the connecting rod 9 drives the telescopic shafts 8 at both ends to move up at the same time, and the transmission support plate is driven to move through the telescopic rod. When the telescopic shaft 8 moves up, it will drive the card shaft 15 to move. At this time, the card shaft 15 is restricted by the notch 16 and rotates into the groove 18. The telescopic shaft 8 is rotated and the spring is squeezed to generate elastic force. When the telescopic shaft 8 slides to the appropriate position, the connecting rod 9 is released, and the clamping shaft 15 is clamped in the groove 16 by relying on gravity and the spring to adjust the height of the frame 1. The telescopic shafts 8 at both ends are connected by the connecting rod 9, and then the linkage can be achieved to avoid the different telescopic lengths of the telescopic shafts 8 on both sides, which may cause jamming. This solves the problem of being unable to adjust the height of the frame 1. For machining centers of different heights, it is impossible to make corresponding adjustments according to the required height. There are still problems of inconvenience in use and large limitations, which greatly improves practicality.

[0036] The telescopic shaft 8 is provided with a cavity 17 on its surface, both ends of the connecting rod 9 penetrate through the cavity 17 and are rotatably connected thereto, and a connecting rope 22 is fixedly connected to the surface of the connecting rod 9 located in the cavity 17, and one end of the connecting rope 22 away from the connecting rod 9 is fixedly connected to the surface of the clamping shaft 15, and a rotating wheel 21 is provided on the surface of the clamping shaft 15, and a connecting block 11 is fixedly connected to the surface of the connecting rod 9, and a top shaft 12 is slidably connected to the surface of the connecting block 11 through a spring, and the end of the top shaft 12 is an arc surface, and a sliding groove 13 is provided on the surface of the telescopic shaft 8, and the sliding groove 13 is arc-shaped, and a limiting hole 14 is provided in the sliding groove 13;

[0037] During operation, when it is necessary to lower the telescopic shaft 8, the connecting rod 9 is directly rotated so that the two ends of the connecting rod 9 rotate in the cavity 17. At the same time, the connecting rod 9 will be located in the cavity 17 and the part of the connecting rod 9 will retract the connecting rope 22. At this time, the connecting rope 22 will drive the card shafts 15 at both ends to retract into the slots 16. While the connecting rod 9 is rotating, it will also drive the connecting block 11 to rotate in the slide groove 13. When the connecting rope 22 is completely wound, the card shaft 15 will disengage from the slot 16. At the same time, the connecting block 11 drives the top shaft 12 to be located above the limiting hole 14. At this time, the spring on one side of the top shaft 12 is reset, driving the top shaft 12 to be stuck in the limiting hole 14, positioning the connecting rod 9, avoiding the situation of self-rotation, avoiding affecting the restriction effect on the card shaft 15, and further improving the convenience during use.

[0038] A plurality of extension blocks 26 are arranged on one side of the fixed block 6, and a pair of limiting grooves 27 are opened on the surface of each of the extension blocks 26, and a plurality of frame rods 24 and frame rods 25 are movably connected in the limiting grooves 27, and each pair of the frame rods 24 and frame rods 25 are of "X"-shaped design, and each pair of the frame rods 24 and frame rods 25 are rotatably connected at the head and tail by hinges, and a reinforcing shaft 28 is rotatably connected to the surface of the fixed block 6 through a thread, and the other end of the reinforcing shaft 28 passes through the extension block 26 for sliding connection, and the reinforcing shaft 28 passes through an extension block 26 farthest from the fixed block 6 for rotation connection, and a knob 29 is fixedly connected to the surface of the reinforcing shaft 28; when working, the knob 29 is turned so that the knob 29 drives the reinforcing shaft 28 to rotate, and the reinforcing shaft 28 rotates in the fixed block 6 at the same time, and the reinforcing shaft 28 rotates under the restriction of the thread. It will move in the direction away from the fixed block 6. At the same time, the reinforcing shaft 28 is connected to the extension block 26 farthest from the fixed block 6 for rotation and cannot slide left and right. Therefore, when the reinforcing shaft 28 moves, it will drive the extension block 26 to move. At the same time, with the "X"-shaped cross-designed frame rod 1 24 and frame rod 25, when the extension block 26 slides, it will drive it to rotate around the intersection and drive other extension blocks 26 to slide. Through the cross-designed frame rod 1 24 and frame rod 25, the effect of equidistant and synchronous sliding of multiple extension blocks 26 can be achieved, avoiding uneven sliding distances and unequal distances between the rotating shafts 5, which leads to unstable sliding of the transmission support plate 23 during loading and unloading, affecting loading. The reinforcing shaft 28 can improve the rigidity of the frame rod 1 24 and the frame rod 25, making them not easily deformed, thereby ensuring the supporting effect of the extension block 26.

[0039] Embodiment 2

[0040] See also Figure 7 As shown, compared with Example 1, as another implementation of the utility model, the cross-section of the connecting rod 9 is circular, and an anti-skid pad 30 is bonded to the surface, and the surface of the anti-skid pad 30 is provided with anti-skid patterns; when working, the anti-skid pad 30 on the surface of the connecting rod 9 can increase the friction of the staff's hands, thereby facilitating the staff's rotation, and the circular connecting rod 9 is also easier for the staff to grasp.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A loading and unloading mechanism for a CNC machining center, comprising a pair of frames (1) for supporting the loading mechanism; Features: It also includes a telescopic shaft (8), a clamping shaft (15) and a second transmission support plate (3); The telescopic shaft (8) is slidably connected in the frame (1), and the telescopic end is fixedly connected to a transmission support plate (7), the surface of the transmission support plate (7) is fixedly connected to a fixed block (6), the surface of the fixed block (6) is provided with an extension mechanism, the surface of the fixed block (6) is provided with a rotating shaft (5), and the transmission support plate (2) (3) is slidably connected to the surface of the fixed block (6) via the rotating shaft (5); The surface of the telescopic shaft (8) is provided with a groove (18), a clamping shaft (15) is rotatably connected in the groove (18) via an elastic member, and a plurality of notches (16) are provided on the surface of the frame (1) at positions relative to the clamping shaft (15); Two grooves (18) are provided, and a pair of the grooves (18) and a telescopic shaft (8) are provided, and the central axes of the telescopic shaft (8) are symmetrically distributed.

2. A CNC machining center loading and unloading mechanism according to claim 1, characterized in that: Two telescopic shafts (8) are provided and are respectively slidably connected on the surfaces of two frames (1); a connecting rod (9) is provided on the surface of the telescopic shaft (8); and the connecting rod (9) is used to connect the two telescopic shafts (8).

3. A CNC machining center loading and unloading mechanism according to claim 2, characterized in that: A cavity (17) is provided on the surface of the telescopic shaft (8), both ends of the connecting rod (9) pass through the cavity (17) and are rotatably connected thereto, and a connecting rope (22) is fixedly connected to the surface of the connecting rod (9) located in the cavity (17), and one end of the connecting rope (22) away from the connecting rod (9) is fixedly connected to the surface of the clamping shaft (15).

4. A CNC machining center loading and unloading mechanism according to claim 3, characterized in that: The surface of the clamping shaft (15) is rotatably connected to a rotating wheel (21).

5. A CNC machining center loading and unloading mechanism according to claim 4, characterized in that: The surface of the connecting rod (9) is fixedly connected to a connecting block (11), the surface of the connecting block (11) is slidably connected to a top shaft (12) via a spring, the end of the top shaft (12) is an arc surface, the surface of the telescopic shaft (8) is provided with a slide groove (13), the slide groove (13) is arc-shaped, and a limiting hole (14) is provided in the slide groove (13).

6. A CNC machining center loading and unloading mechanism according to claim 5, characterized in that: A plurality of extension blocks (26) are arranged on one side of the fixed block (6), and a pair of limiting grooves (27) are provided on the surface of each of the extension blocks (26). A plurality of frame rods (24) and frame rods (25) are movably connected in the limiting grooves (27). Each pair of frame rods (24) and frame rods (25) are designed in an "X" shape, and each pair of frame rods (24) and frame rods (25) are rotatably connected at the head and tail ends via hinges. A reinforcing shaft (28) is rotatably connected to the surface of the fixed block (6) via a thread, and the other end of the reinforcing shaft (28) passes through the extension block (26) for sliding connection. The reinforcing shaft (28) passes through an extension block (26) farthest from the fixed block (6) for rotational connection, and a knob (29) is fixedly connected to the surface of the reinforcing shaft (28).

7. A CNC machining center loading and unloading mechanism according to claim 6, characterized in that: The cross section of the connecting rod (9) is circular, and an anti-skid pad (30) is bonded to the surface, and the surface of the anti-skid pad (30) is provided with anti-skid patterns.

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