Clamp for CNC machining center

Abstract

The utility model relates to the technical field of CNC machining, and discloses a clamp for a CNC machining center, which comprises a base, a motor is fixedly connected to one side of the base, a fixing mechanism for fixing a workpiece is arranged on an output shaft of the motor, a bottom plate is fixedly connected to the top of the base, four containing grooves are formed in the top of the bottom plate, and the four containing grooves are uniformly formed in a square shape. Second supporting plates are rotatably connected to one sides of the interiors of the four storage grooves, first supporting plates are slidably connected to one sides of the four second supporting plates, the same supporting plate is rotatably connected to the surfaces of the sides, away from the second supporting plates, of the four first supporting plates, and an adjusting mechanism used for adjusting the supporting plates is arranged at the bottom of the supporting plate. By means of the arrangement of the supporting plates, impurities can be dumped while a workpiece is lifted, the supporting plates are installed on the periphery of the supporting plate, after the supporting plates are lifted, the supporting plates can incline along with the supporting plates, and therefore the falling impurities can be dumped, and workers are prevented from conducting cleaning work.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining, in particular to a clamp for a CNC machining center. Background Art

[0002] A fixture for a CNC machining center is a device used to fix a workpiece for machining operations on a CNC machining center. The fixture is usually composed of a fixture bed, a fixture jaw, and a fixture base. The fixture for a CNC machining center can be designed and manufactured according to the shape of the workpiece and the machining requirements. They can be used to clamp workpieces of various shapes, such as flat parts, curved parts, hole machining, etc. The design and manufacture of the fixture needs to consider factors such as the material, shape, size, and machining requirements of the workpiece to ensure that the fixture can provide sufficient fixing force and stability, as well as meet the requirements of machining accuracy and efficiency.

[0003] However, when some existing CNC machining center fixtures are in use, many processing impurities will fall on their surfaces. Therefore, when the workpiece is processed, the fixture surface needs to be cleaned to avoid affecting subsequent processing. In addition, some existing workpieces are inside the fixture during processing, which requires them to be taken out for observation. After being taken out, it is difficult to reset them again. Therefore, this problem needs to be solved. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a clamp for a CNC machining center.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamp for a CNC machining center comprises a base, one side of the base is fixedly connected to a motor, the motor output shaft is provided with a fixing mechanism for fixing a workpiece, the top of the base is fixedly connected to a bottom plate, the top of the bottom plate is provided with four receiving grooves, the four receiving grooves are evenly arranged in a square shape, one side of the four receiving grooves is rotatably connected to a second support plate, one side of the four second support plates is slidably connected to a first support plate, the four first support plates are rotatably connected to the same support plate on the surface of the side away from the second support plate, an adjusting mechanism for adjusting the support plate is provided at the bottom of the support plate, and through the setting of the support plate, impurities can be dumped while the workpiece is raised.

[0007] As a further solution of the utility model, the fixing mechanism includes a bidirectional screw rod, which is fixedly connected to the output shaft of the motor, and the surface of the bidirectional screw rod is symmetrically sleeved with two sliders, and the surfaces of the two sliders away from the screw rod are fixedly connected with a first clamping plate, and the two first clamping plates are slidably connected to one side of the base, and the surface of the bidirectional screw rod is symmetrically sleeved with two gears, and the surfaces of the two gears are matched with two racks, and the two racks are cross-symmetrically arranged, and the other ends of the two racks are fixedly connected to one side of the connecting plate, and the surface of the connecting plate away from the rack is fixedly connected with a second clamping plate, and the workpiece can be fixed by the arrangement of the clamping plate.

[0008] As a further solution of the present invention, the adjusting mechanism includes a worm, which is arranged on the surface of a bidirectional screw, and a worm wheel is matched on the surface of the worm, and the worm wheel is rotatably connected to the top side of the base, and a screw is sleeved on the top of the worm wheel, and the top of the screw is fixedly connected to the bottom of the support plate, and the bottom of the support plate close to the screw is fixedly connected to a limiting rod, and the limiting rod slides on the top of the base, and an extension cloth is fixedly connected between the four first support plates and the second support plates, and the bottom of the extension cloth is fixedly connected to the top of the base plate, and the support plate can be adjusted by setting the screw.

[0009] The beneficial effects of the utility model are:

[0010] 1. The workpiece can be propped up by setting the support plate. A lead screw is installed on the top of the worm wheel. Since the position of the worm wheel does not change, the lead screw can be lifted when the worm wheel rotates. A support plate is installed on the top of the lead screw. After the lead screw is lifted, the processed workpiece can be propped up by the support plate for easy observation. And because it is not picked up manually, the previous processing can be continued after resetting.

[0011] 2. Through the setting of the support plate, impurities can be dumped while the workpiece is raised. Support plates are installed around the support plate. When the support plate is raised, the support plate will also tilt accordingly, so that the fallen impurities can be dumped to avoid workers from cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a clamp for a CNC machining center proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a clamp for a CNC machining center proposed by the utility model;

[0014] Figure 3 The utility model is a schematic diagram of an adjustment mechanism of a clamp for a CNC machining center.

[0015] In the figure: 1. base; 2. motor; 3. support plate; 201. bidirectional screw; 202. gear; 203. worm; 204. slider; 205. first clamping plate; 206. connecting plate; 207. second clamping plate; 208. rack; 301. bottom plate; 302. storage slot; 303. limit rod; 304. screw; 305. worm gear; 306. first support plate; 307. second support plate; 308. extension cloth. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] Reference Figure 1-Figure 3 A clamp for a CNC machining center includes a base 1, one side of the base 1 is fixedly connected to a motor 2, the output shaft of the motor 2 is provided with a fixing mechanism for fixing a workpiece, the top of the base 1 is fixedly connected to a bottom plate 301, the top of the bottom plate 301 is provided with four receiving grooves 302, the four receiving grooves 302 are evenly arranged in a square shape, one side of the four receiving grooves 302 is rotatably connected to a second support plate 307, one side of the four second support plates 307 is slidably connected to a first support plate 306, the four first support plates 306 are rotatably connected to the same support plate 3 on the surface of the side away from the second support plate 307, and an adjusting mechanism for adjusting the support plate is provided at the bottom of the support plate 3. Through the setting of the support plate, impurities can be dumped while the workpiece is raised.

[0019] Reference Figure 1 and Figure 2 In a preferred embodiment, the fixing mechanism includes a bidirectional screw rod 201, which is fixedly connected to the output shaft of the motor 2. Two sliders 204 are symmetrically sleeved on the surface of the bidirectional screw rod 201. The surfaces of the two sliders 204 away from the screw rod 201 are fixedly connected with a first clamping plate 205. The two first clamping plates 205 are slidably connected to one side of the base 1. Two gears 202 are symmetrically sleeved on the surface of the bidirectional screw rod 201. The surfaces of the two gears 202 are equipped with two racks 208. The two racks 208 are cross-symmetrically arranged. The other ends of the two racks 208 are fixedly connected to one side of the connecting plate 206. The surface of the connecting plate 206 away from the rack 208 is fixedly connected with a second clamping plate 207. The workpiece can be fixed by setting the clamping plate.

[0020] Reference Figure 2 and Figure 3 In a preferred embodiment, the adjustment mechanism includes a worm 203, which is arranged on the surface of the bidirectional screw 201. The surface of the worm 203 is matched with a worm wheel 305, which is rotatably connected to the top side of the base 1. A screw 304 is sleeved on the top of the worm wheel 305, and the top of the screw 304 is fixedly connected to the bottom of the support plate 3. The bottom of the support plate 3 close to the screw 304 is fixedly connected to a limiting rod 303, and the limiting rod 303 slides on the top of the base 1. Extension cloth 308 is fixedly connected between the four first support plates 306 and the second support plates 307, and the bottom of the extension cloth 308 is fixedly connected to the top of the base plate 301. The support plate 3 can be adjusted by setting the screw 304.

[0021] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: when in use, the workpiece is placed on the top of the base plate 301, and then clamped and fixed by the second clamping plate 207 and the first clamping plate 205. A motor 2 is installed on one side of the base 1. When it is necessary to observe it, the motor 2 can be started. A bidirectional screw rod 201 is installed on the output shaft of the motor 2, and the first clamping plate 205 is sleeved on the surface of the bidirectional screw rod 201, so that when the bidirectional screw rod 201 rotates, the first clamping plate 205 can be moved away from each other. A gear 202 is sleeved on the surface of the bidirectional screw rod 201, and two racks 208 are matched on the surface of the gear 202. Because the two racks 208 are arranged in a cross-symmetrical manner, the second clamping plate 207 can be moved away from each other under the rotation of the gear 202. A worm 203 is also installed on the surface of 201, and the worm 203 cooperates with the worm wheel 305, so that when the worm 203 rotates, the worm wheel 305 will also rotate synchronously, and a screw 304 is installed on the top of the worm wheel 305. Because the position of the worm wheel 305 does not change, when the worm wheel 305 rotates, the screw 304 can be lifted, and a support plate 3 is installed on the top of the screw 304, so that after the screw 304 is lifted, the processed workpiece can be propped up by the support plate 3 to facilitate observation, and because it is not manually lifted, the previous processing can be continued after resetting, and support plates are installed around the support plate 3. When the support plate 3 is lifted, the support plate will also tilt accordingly, so that the fallen impurities can be dumped to avoid workers from cleaning.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fixture for a CNC machining center, comprising a base (1), characterized in that: A motor (2) is fixedly connected to one side of the base (1); an output shaft of the motor (2) is provided with a fixing mechanism for fixing a workpiece; a bottom plate (301) is fixedly connected to the top of the base (1); four receiving grooves (302) are provided on the top of the bottom plate (301); the four receiving grooves (302) are evenly arranged in a square shape; a second support plate (307) is rotatably connected to one side of the four receiving grooves (302); a first support plate (306) is slidably connected to one side of the four second support plates (307); a surface of the four first support plates (306) away from the second support plates (307) is rotatably connected to the same support plate (3); an adjustment mechanism for adjusting the support plate is provided at the bottom of the support plate (3).

2. The fixture for a CNC machining center according to claim 1, characterized in that: The fixing mechanism comprises a bidirectional screw (201), the bidirectional screw (201) being fixedly connected to the output shaft of the motor (2), two sliders (204) being symmetrically sleeved on the surface of the bidirectional screw (201), the surfaces of the two sliders (204) being fixedly connected to a first clamping plate (205) on a side away from the screw (201), the two first clamping plates (205) being slidably connected to one side of the base (1), and two gears (202) being symmetrically sleeved on the surface of the bidirectional screw (201).

3. The fixture for a CNC machining center according to claim 2, characterized in that: The surfaces of the two gears (202) are matched with two racks (208), the two racks (208) are arranged in a cross-symmetrical manner, the other ends of the two racks (208) are fixedly connected to one side of the connecting plate (206), and the surface of the connecting plate (206) away from the racks (208) is fixedly connected to a second clamping plate (207).

4. The fixture for a CNC machining center according to claim 3, characterized in that: The adjustment mechanism comprises a worm (203), wherein the worm (203) is arranged on the surface of a bidirectional screw (201), and the surface of the worm (203) is matched with a worm wheel (305), and the worm wheel (305) is rotatably connected to the inner top side of the base (1).

5. The fixture for a CNC machining center according to claim 4, characterized in that: A screw rod (304) is sleeved on the top of the worm wheel (305); the top of the screw rod (304) is fixedly connected to the bottom of the support plate (3); the bottom of the support plate (3) close to the screw rod (304) is fixedly connected to a limiting rod (303); and the limiting rod (303) slides on the top of the base (1).

6. The fixture for a CNC machining center according to claim 5, characterized in that: An extension cloth (308) is fixedly connected between each of the four first support plates (306) and the four second support plates (307), and the bottom of the extension cloth (308) is fixedly connected to the top of the bottom plate (301).

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