Double-station clamping mechanism for numerical control machining center

Abstract

The utility model belongs to clamping mechanism technical field, concretely relates to a double position clamping mechanism for numerical control machining center, including base, the lower end fixed mounting of base has the motor, the lower fixedly connected with gear of motor's pivot, the upper fixedly connected with support of base, be provided with limit mechanism on the support, the gear is engaged with the toothed disc, be provided with clamping mechanism on the toothed disc. The utility model discloses through the toothed disc rotation drives the sliding plate movement, and further makes the compression plate through the compression spring drive the clamping plate movement, simultaneously, through the rotation screw rod and the sliding plate do the screw thread movement, and further make the device can carry out the clamping fixation to the workpiece of different size size ratio.

Description

Technical Field

[0001] This utility model relates to the field of clamping mechanism technology, specifically a dual-station clamping mechanism for CNC machining centers. Background Technology

[0002] Utility model patent CN217071608U discloses a dual-station clamping mechanism for CNC machining centers, including a first fixed base, a connecting rotating rod, a second fixed base, a sliding base, a first linkage screw, a first stepper motor, a second linkage screw, and a second stepper motor. The beneficial effects of this utility model are: the overall structure composed of support rods and sliding rods is symmetrically arranged in two sets, with the clamping base connected to one set of sliding rods. A first clamping plate is fixed to the other set of sliding rods, and a second clamping plate is connected to the clamping base. The two sets of clamping plates with different shapes enable the device to clamp and fix two different types of workpieces. The clamping base has an arc-shaped structure with two concave arc-shaped slots at one end, each containing a limiting block. The back of the second clamping plate has a concave limiting groove. The sliding of the second clamping plate within the clamping base allows it to clamp and fix pipes of different diameters. However, this device has some shortcomings in use: it is not easy to adjust and control the clamping and limiting of workpieces with different size ratios; also, the device is not stable enough after clamping the workpiece and may loosen. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a dual-station clamping mechanism for CNC machining centers, which solves the problems of inconvenient adjustment and control of the device for clamping and limiting workpieces with different size ratios, and the lack of stability of the device after clamping the workpiece, which may cause loosening.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-station clamping mechanism for a CNC machining center, comprising a base, a motor fixedly mounted on the lower end of the base, a gear fixedly connected to the lower end of the motor's shaft, a support fixedly connected to the upper end of the base, a limit mechanism provided on the support, a gear meshing with the gear, and a clamping mechanism provided on the gear.

[0005] Preferably, the limiting mechanism includes a cylinder. The cylinder is fixedly mounted on the upper center of the support. The cylinder rod passes through the support and is slidably connected to it. A connecting plate is fixedly connected to the lower end of the cylinder rod. A connecting rod is fixedly connected to the lower end of the connecting plate. The connecting rod is slidably connected to the base. A sliding cylinder is slidably connected to the outer side of the connecting rod. A pressure ring is fixedly connected to the lower end of the sliding cylinder. A spring is installed inside the sliding cylinder. The cylinder drives the connecting rod to move, causing the spring to compress the pressure ring. This allows the insert block to engage with the gear, facilitating the limiting of the position after gear rotation. This makes the device more stable after adjustment and less prone to loosening.

[0006] Preferably, one end of the spring is fixedly connected to the connecting rod, and the other end of the spring is fixedly connected to the pressure ring. By setting the spring, the pressure ring is elastically pressed down.

[0007] Preferably, a plug is fixedly connected to the lower end of the pressure ring, and the plug is slidably connected to the gear. The plug limits the movement of the gear.

[0008] Preferably, the clamping mechanism includes a support shaft, with the upper end of the geared disc fixedly connected to the support shaft. The support shaft and the base are connected via bearings. A sliding plate is slidably connected to the upper end of the geared disc. A screw is threadedly connected inside the sliding plate, and the screw is rotatably connected to the base. A clamping plate is slidably connected inside the base, and the clamping plate is movably connected to the screw. A pressure plate is mounted on the outer side of the screw via bearings, and the pressure plate is slidably connected to the base. A compression spring is provided on the outer side of the screw. The rotation of the geared disc drives the sliding plate to move, which in turn causes the pressure plate to drive the clamping plate to move via the compression spring. Simultaneously, the screw and sliding plate rotate to perform threaded motion, thereby enabling the device to clamp and fix workpieces with different size ratios.

[0009] Preferably, a sliding pin is fixedly connected to the lower end of the slide plate, and the sliding pin is slidably connected to the toothed disc. The movement of the slide plate is controlled by setting the sliding pin.

[0010] Preferably, one end of the compression spring is fixedly connected to the clamping plate, and the other end of the compression spring is fixedly connected to the pressure plate. By setting the compression spring, the clamping plate is elastically compressed.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses a cylinder to drive the connecting rod to move, which in turn causes the spring to compress the pressure ring, allowing the insert block to engage with the gear. This makes it easier to limit the position after the gear rotates, making the device more stable and less prone to loosening after adjustment.

[0013] 2. This utility model uses the rotation of the gear plate to drive the slide plate to move, which in turn causes the pressure plate to drive the clamping plate to move through the compression spring. At the same time, by rotating the screw and the slide plate to make threaded motion, the device can clamp and fix workpieces with different size ratios. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A sectional view of the base;

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0018] In the diagram: 1. Base; 2. Motor; 3. Gear; 4. Support; 5. Limiting mechanism; 6. Gear plate; 7. Clamping mechanism; 51. Cylinder; 52. Connecting plate; 53. Connecting rod; 54. Slide cylinder; 55. Pressure ring; 56. Spring; 57. Insert block; 71. Support shaft; 72. Slide plate; 73. Sliding pin; 74. Screw; 75. Clamping plate; 76. Pressure plate; 77. Compression spring. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-2 A dual-station clamping mechanism for a CNC machining center includes a base 1, a motor 2 fixedly mounted on the lower end of the base 1, a gear 3 fixedly connected to the lower end of the shaft of the motor 2, a support 4 fixedly connected to the upper end of the base 1, a limit mechanism 5 provided on the support 4, a gear 6 meshing on the gear 3, and a clamping mechanism 7 provided on the gear 6.

[0021] Please see Figures 1-3The limiting mechanism 5 includes a cylinder 51. The cylinder 51 is fixedly installed at the middle of the upper end of the support 4. The cylinder rod of the cylinder 51 passes through the support 4 and is slidably connected to the support 4. A connecting plate 52 is fixedly connected to the lower end of the cylinder rod of the cylinder 51. A connecting rod 53 is fixedly connected to the lower end of the connecting plate 52. The connecting rod 53 is slidably connected to the base 1. A slide cylinder 54 is slidably connected to the outer side of the connecting rod 53. A pressure ring 55 is fixedly connected to the lower end of the slide cylinder 54. A spring 56 is provided inside the slide cylinder 54. One end of the spring 56 is fixed to the connecting rod 53. The other end of the spring 56 is fixedly connected to the pressure ring 55. By setting the spring 56, the pressure ring 55 is elastically pressed down. The lower end of the pressure ring 55 is fixedly connected to the insert block 57, which is slidably connected to the gear 3. By setting the insert block 57, the gear 3 is limited. The connecting rod 53 is driven to move by the cylinder 51, which causes the spring 56 to squeeze the pressure ring 55, so that the insert block 57 can cooperate with the gear 3. This makes it easier to limit the rotation of the gear 3, making the device more stable after adjustment and less prone to loosening.

[0022] Please see Figure 1 , Figure 2 , Figure 4 The clamping mechanism 7 includes a support shaft 71. The upper end of the gear disk 6 is fixedly connected to the support shaft 71. The support shaft 71 and the base 1 are connected by bearings. The upper end of the gear disk 6 is slidably connected to a slide plate 72. The lower end of the slide plate 72 is fixedly connected to a sliding pin 73. The sliding pin 73 and the gear disk 6 are slidably connected. The movement of the slide plate 72 is controlled by setting the sliding pin 73. The inside of the slide plate 72 is connected to a screw 74 by a thread. The screw 74 is rotatably connected to the base 1. The inside of the base 1 is slidably connected to a clamping plate 75. The clamping plate 75 and the screw 74 are movably connected. The outer side of the screw 74... A pressure plate 76 is mounted on a bearing and is slidably connected to the base 1. A compression spring 77 is provided on the outside of the screw 74. One end of the compression spring 77 is fixedly connected to the clamping plate 75, and the other end of the compression spring 77 is fixedly connected to the pressure plate 76. By setting the compression spring 77, the clamping plate 75 is elastically compressed. The rotation of the gear disc 6 drives the slide plate 72 to move, which in turn causes the pressure plate 76 to drive the clamping plate 75 to move through the compression spring 77. At the same time, by rotating the screw 74 and the slide plate 72 to make threaded movements, the device can clamp and fix workpieces with different size ratios.

[0023] The specific implementation process of this utility model is as follows: In use, according to the workpiece size ratio adjustment device, the screw 74 is manually rotated, and the screw 74 and the slide plate 72 make threaded movements, thereby changing the distance between the slide plate 72 and the pressure plate 76. The motor 2 is started, and the motor 2 drives the gear 3 to rotate. The gear 3 drives the gear disc 6 to rotate, and the gear disc 6 drives the sliding pin 73 to move. The sliding pin 73 drives the slide plate 72 to move, and the slide plate 72 drives the pressure plate 76 to move. The pressure plate 76 moves and compresses the compression spring 77. The compression spring 77 moves and drives the clamping plate 75 to move, so that the clamping plate 75 contacts the workpiece. The rotation of the gear disc 6 drives the slide plate 72 to move, and then the pressure plate 76 drives the clamping plate 76 through the compression spring 77. 5. Simultaneously, by rotating the screw 74 and the slide plate 72 to perform threaded motion, the device can clamp and fix workpieces with different size ratios. The rotation of gear 3 causes the slot and the insert 57 to misalign, which in turn causes the insert 57 to move upward. The upward movement of the insert 57 causes the pressure ring 55 to move upward, which in turn compresses the spring 56 until gear 3 stops rotating. The spring 56 returns to its original position, causing the insert 57 to be elastically pressed downward, which in turn causes the insert 57 to enter the corresponding insertion hole. The cylinder 51 is activated, and the cylinder 51 drives the connecting rod 53 to move, which compresses the spring 56 to its limit, limiting gear 3 and making the device more stable after adjustment and less prone to loosening.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-station clamping mechanism for a CNC machining center, comprising a base (1), characterized in that: A motor (2) is fixedly installed at the lower end of the base (1), and a gear (3) is fixedly connected to the lower end of the shaft of the motor (2). A support (4) is fixedly connected to the upper end of the base (1), and a limit mechanism (5) is provided on the support (4). A gear plate (6) meshes with the gear (3), and a clamping mechanism (7) is provided on the gear plate (6).

2. The dual station clamping mechanism for CNC machining center as claimed in claim 1, wherein: The limiting mechanism (5) includes a cylinder (51). The cylinder (51) is fixedly installed in the middle of the upper end of the support (4). The cylinder rod of the cylinder (51) passes through the support (4) and is slidably connected to the support (4). A connecting plate (52) is fixedly connected to the lower end of the cylinder rod of the cylinder (51). A connecting rod (53) is fixedly connected to the lower end of the connecting plate (52). The connecting rod (53) is slidably connected to the base (1). A slide cylinder (54) is slidably connected to the outer side of the connecting rod (53). A pressure ring (55) is fixedly connected to the lower end of the slide cylinder (54). A spring (56) is provided inside the slide cylinder (54).

3. The dual-station clamping mechanism for a CNC machining center according to claim 2, characterized in that: One end of the spring (56) is fixedly connected to the connecting rod (53), and the other end of the spring (56) is fixedly connected to the pressure ring (55).

4. The dual-station clamping mechanism for a CNC machining center according to claim 2, characterized in that: The lower end of the pressure ring (55) is fixedly connected to the insert (57), and the insert (57) and the gear (3) are slidably connected.

5. The dual station clamping mechanism for CNC machining center as claimed in claim 1 wherein: The clamping mechanism (7) includes a support shaft (71). The upper end of the gear disc (6) is fixedly connected to the support shaft (71). The support shaft (71) and the base (1) are connected by bearings. The upper end of the gear disc (6) is slidably connected to a slide plate (72). The interior of the slide plate (72) is connected to a screw (74) by a thread. The screw (74) and the base (1) are rotatably connected. The interior of the base (1) is slidably connected to a clamping plate (75). The clamping plate (75) and the screw (74) are movably connected. The outer side of the screw (74) is fitted with a pressure plate (76) by a bearing. The pressure plate (76) and the base (1) are slidably connected. The outer side of the screw (74) is provided with a compression spring (77).

6. A dual-station clamping mechanism for a CNC machining center according to claim 5, characterized in that: The lower end of the slide plate (72) is fixedly connected to a sliding pin (73), and the sliding pin (73) is slidably connected to the toothed disc (6).

7. The dual station clamping mechanism for CNC machining center as claimed in claim 5 wherein: One end of the compression spring (77) is fixedly connected to the clamping plate (75), and the other end of the compression spring (77) is fixedly connected to the pressure plate (76).

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