CNC feeding and clamping device

Abstract

The utility model provides a CNC feeding clamping device which comprises a base, two supporting plates arranged on the two sides of the upper end of the base and a fixing assembly connected with the upper ends of the two supporting plates, the fixing assembly comprises a top fixing plate, a bottom fixing plate and a lifting mechanism, and at least one side of the top fixing plate and at least one side of the bottom fixing plate are provided with clamping plates. Deformation notches are formed in the positions, corresponding to the fixing grooves, of the clamping plate, so that an elastic pressing block is formed in a groove opening of each fixing groove. According to the CNC feeding and clamping device, during clamping, the two ends of a material bar are fixed through the top fixing plate, the bottom fixing plate and the corresponding clamping plates, the deformation notches are formed in the positions, corresponding to the fixing grooves, of the clamping plates correspondingly, so that an elastic pressing block is formed in the notch of each fixing groove, and elastic pressing of the material bar is achieved; when the size of the material bar is small, the material bar can be clamped, and the problem that the material bar with the small size is prone to loosening when clamped is solved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a CNC feeding clamping device. Background Art

[0002] CNC lathes are one of the most widely used CNC machine tools. They are mainly used for cutting the inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads. They can also perform grooving, drilling, reaming, boring, etc.

[0003] In existing CNC machine tools, the material rod needs to be clamped and fixed by a clamping device. The existing clamping device includes a fixed plate and a clamping plate arranged on one side of the fixed plate, and one side of the fixed plate is provided with multiple fixing grooves. When clamping, the material rod is first placed in the fixing groove and then clamped by the clamping plate.

[0004] The above clamping method has a problem that due to the tolerance of the size of the material rod, the material rod with a smaller size is easy to loosen after the clamp is clamped. In addition, the traditional clamping method is generally a single clamping method. When clamping multiple products or materials, some of them may not be clamped tightly due to tolerance reasons. Therefore, a clamping device is needed to solve the problem that some materials or products cannot be clamped tightly due to tolerance problems when clamping multiple materials or products. Utility Model Content

[0005] The utility model aims to provide a CNC feeding clamping device to solve the problem that a material rod with a smaller size is easily loosened when being clamped by a clamping device on a CNC lathe.

[0006] The utility model provides a CNC feeding clamping device, comprising a base, two support plates arranged on both sides of the upper end of the base, a fixing assembly connecting the upper ends of the two support plates, the fixing assembly comprising a top fixing plate connecting the upper ends of the two support plates, a bottom fixing plate arranged on the lower side of the top fixing plate, and a lifting mechanism connected to the bottom fixing plate, at least one side of the top fixing plate and the bottom fixing plate is provided with a clamping plate, the clamping plate is detachably connected to the top fixing plate and the bottom fixing plate, a plurality of fixing grooves are provided at intervals on the outer sides of the top fixing plate and the bottom fixing plate, and a deformation notch is provided at the position corresponding to the clamping plate and each fixing groove to form an elastic pressing block at the notch of each fixing groove.

[0007] The above-mentioned CNC feeding clamping device, when clamping, fixes the two ends of the material rod through the top fixed plate, the bottom fixed plate and the corresponding clamping plate, and then drives the bottom fixed plate to rise through the lifting mechanism to realize automatic loading. Among them, a deformation notch is set at the position corresponding to each fixed slot through the clamping plate to form an elastic pressing block at the notch of each fixed slot to realize elastic pressing of the material rod. When the size of the material rod is relatively small, the material rod can also be clamped, which solves the problem of easy loosening when clamping material rods with small sizes.

[0008] Furthermore, two positioning columns are spaced apart in the middle of the base, and the upper ends of the two positioning columns are fixedly connected to the top fixing plate.

[0009] Furthermore, the lifting mechanism includes a bidirectional rotating motor, a rotating shaft connected to the bidirectional rotating motor, and two rotating gears arranged at both ends of the rotating shaft. A lifting gear plate is provided at the positions corresponding to the two support plates and the corresponding rotating gears. The rotating shaft is also rotatably connected to the bottom fixed plate, and an avoidance hole is provided on one side of the support plate corresponding to the bidirectional rotating motor.

[0010] Furthermore, two mounting plates are provided at the lower end of the bottom fixing plate, and a mounting hole is provided in the middle of each mounting plate. Both ends of the rotating shaft pass through the corresponding mounting holes and are connected to the corresponding rotating gears.

[0011] Furthermore, the clamping plate is detachably connected to the top fixing plate and the bottom fixing plate through a plurality of threaded fasteners.

[0012] Furthermore, the deformation notch includes an arc-shaped portion and a circular portion, and the arc-shaped portion passes through the corresponding fixing groove and extends to one side of the corresponding fixing groove.

[0013] Furthermore, the depth of the fixing groove is smaller than the thickness of the smallest material rod.

[0014] Furthermore, the bidirectional rotating motor is connected to a PLC controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the CNC feeding and clamping device in the first embodiment of the present utility model;

[0016] Figure 2 for Figure 1 A top view of the CNC feeding clamping device;

[0017] Figure 3 for Figure 2 Cross-section view in the AA direction.

[0018] Description of main component symbols:

[0019] base 10 Lifting mechanism 33 Circular part 412 Support plate 20 Bidirectional rotation motor 331 Elastic pressure block 42 Avoidance hole 21 Rotation axis 332 Positioning column 50 Fixed components 30 Turning gears 333 Lifting gear plate 60 Top fixing plate 31 splint 40 Mounting plate 70 Fixed slot 311 Deformation gap 41 threaded fasteners 80 Bottom fixing plate 32 Arc 411 Material stick 100

[0020] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] See also Figure 1 Character Figure 3 The cam 32 is provided with a plurality of fixing grooves 311 on the outer sides of the top fixing plate 31 and the bottom fixing plate 32, and a plurality of fixing grooves 311 are provided on the outer sides of the cam 32 and the bottom fixing plate 32, respectively.

[0025] The above-mentioned CNC feeding clamping device, when clamping, fixes the two ends of the material rod 100 through the top fixed plate 31, the bottom fixed plate 32 and the corresponding clamping plate 40, and then drives the bottom fixed plate 32 to rise through the lifting mechanism 33 to realize automatic loading. Among them, a deformation notch 41 is set at the position corresponding to each fixed groove 311 through the clamping plate 40 to form an elastic clamping block 42 at the notch of each fixed groove 311 to realize elastic compression of the material rod. When the size of the material rod 100 is relatively small, the material rod 100 can also be clamped, which solves the problem of easy loosening when clamping the material rod 100 with a relatively small size.

[0026] In one embodiment of the present invention, two positioning columns 50 are spaced apart in the middle of the base 10 , and the upper ends of the two positioning columns 50 are fixedly connected to the top fixing plate 31 to improve the stability of the bottom fixing plate 32 when it is raised or lowered.

[0027] In one embodiment of the present invention, the lifting mechanism 33 includes a bidirectional rotating motor 331, a rotating shaft 332 connected to the bidirectional rotating motor 331, and two rotating gears 333 provided at both ends of the rotating shaft 332. A lifting gear plate 60 is provided at positions corresponding to the corresponding rotating gears 333 on the two support plates 20. The rotating shaft 332 is also rotatably connected to the bottom fixed plate 32. During lifting, the bidirectional rotating motor 331 drives the rotating shaft 332 to rotate, thereby driving the two rotating gears 33 to rotate on the lifting gear plate 60, causing the bottom fixed plate 32 to rise or fall. When the bottom fixed plate 32 rises, automatic loading can be achieved. A side of the support plate 20 corresponding to the bidirectional rotating motor 331 is provided with an avoidance hole 21, so that the bidirectional rotating motor 331 can rise and fall freely.

[0028] In one embodiment of the present invention, two mounting plates 70 are provided at the lower end of the bottom fixing plate 32, and a mounting hole (not shown) is provided in the middle of each mounting plate 70. Both ends of the rotating shaft 332 pass through the corresponding mounting holes and are connected to the corresponding rotating gear 333.

[0029] In one embodiment of the present invention, the clamping plate 40 is detachably connected to the top fixing plate 31 and the bottom fixing plate 32 via a plurality of threaded fasteners 80. Specifically, the threaded fasteners 80 may be bolts.

[0030] In one embodiment of the present invention, the deformation notch 41 includes an arcuate portion 411 and a circular portion 412. The arcuate portion 411 passes through the corresponding fixing slot 311 and extends to one side of the corresponding fixing slot 311. This structural design enhances the bending resistance of the deformation notch 41, thereby improving its deformation capacity, compared to a linear design.

[0031] In one embodiment of the present invention, the depth of the fixing groove 311 is smaller than the thickness of the smallest material rod 100 , so that the elastic pressing block 42 can press all the material rods 100 .

[0032] In one embodiment of the present invention, the bidirectional rotating motor 331 is connected to a PLC controller to realize the forward and reverse rotation of the bidirectional rotating motor 311 .

[0033] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A CNC feeding clamping device, comprising a base, two support plates provided on both sides of the upper end of the base, and a fixing assembly connecting the upper ends of the two support plates, characterized in that: The fixing assembly includes a top fixing plate connecting the upper ends of the two support plates, a bottom fixing plate arranged on the lower side of the top fixing plate, and a lifting mechanism connected to the bottom fixing plate, at least one side of the top fixing plate and the bottom fixing plate is provided with a clamping plate, the clamping plate is detachably connected to the top fixing plate and the bottom fixing plate, and the outer sides of the top fixing plate and the bottom fixing plate are spaced apart by a plurality of fixing grooves, and the position of the clamping plate corresponding to each of the fixing grooves is provided with a deformation notch to form an elastic pressure block at the notch of each fixing groove.

2. The CNC feeding clamping device according to claim 1, characterized in that: Two positioning columns are spaced apart in the middle of the base, and the upper ends of the two positioning columns are fixedly connected to the top fixing plate.

3. The CNC feeding clamping device according to claim 1, characterized in that: The lifting mechanism includes a bidirectional rotating motor, a rotating shaft connected to the bidirectional rotating motor, and two rotating gears arranged at both ends of the rotating shaft. A lifting gear plate is provided at the positions corresponding to the two support plates and the corresponding rotating gears. The rotating shaft is also rotatably connected to the bottom fixed plate. An avoidance hole is provided on one side of the support plate corresponding to the bidirectional rotating motor.

4. The CNC feeding clamping device according to claim 3, characterized in that: Two mounting plates are provided at the lower end of the bottom fixing plate. A mounting hole is provided in the middle of each mounting plate. Both ends of the rotating shaft pass through the corresponding mounting holes and are connected to the corresponding rotating gears.

5. The CNC feeding clamping device according to claim 1, characterized in that: The clamping plate is detachably connected to the top fixing plate and the bottom fixing plate by a plurality of threaded fasteners.

6. The CNC feeding clamping device according to claim 1, characterized in that: The deformation notch includes an arc-shaped portion and a circular portion, and the arc-shaped portion passes through the corresponding fixing groove and extends to one side of the corresponding fixing groove.

7. The CNC feeding clamping device according to claim 1, characterized in that: The depth of the fixing groove is smaller than the thickness of the smallest material rod.

8. The CNC feeding clamping device according to claim 3, characterized in that: The bidirectional rotating motor is connected to a PLC controller.

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