Clamping and positioning assembly of machining center

Abstract

The utility model belongs to the technical field of milling machine machining, and particularly relates to a clamping and positioning assembly of a machining center, which comprises a suction cup and a cross rod, the top of the suction cup is fixedly connected with a sliding groove, a plurality of convex blocks are assembled on the periphery of the sliding groove in an array sliding mode, and the bottoms of the convex blocks are fixedly connected with connecting blocks. The connecting blocks are fixedly connected through connecting columns, the cross rods are symmetrically and fixedly connected to the two ends of the connecting blocks, the two ends of the cross rods are slidably connected with second sliding rods, and the second sliding rods are fixedly connected with fixing bases through connecting rods with one ends fixedly connected. During cleaning, the protruding blocks are contained in the suction cup, and disintegrating slag and chippings formed by machining are prevented from being adhered and accumulated in gaps formed by the protruding blocks, so that the situation that the workpiece machining quality and the clamping and fixing function of the suction cup are affected due to accumulation of the slag and chippings is avoided, and cleaning work can be conducted more conveniently and rapidly.

Description

Technical Field

[0001] The utility model belongs to the technical field of milling machine processing, and in particular relates to a clamping and positioning component of a processing center. Background Art

[0002] The machining center is developed from the CNC milling machine. The biggest difference between the machining center and the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing tools of different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changer in one clamping to achieve multiple machining functions. The CNC machining center is a high-efficiency automated machine tool composed of mechanical equipment and CNC systems suitable for machining complex parts. Generally, the workpiece is fixedly clamped by fixtures (i.e., clamping and positioning components) that can achieve different functions. Commonly used fixtures include vises, vacuum suction cups, chucks, etc.

[0003] The vacuum suction cup in the prior art uses a vacuum pump to extract the air between the suction cup and the workpiece to form a vacuum space and adsorb and fix the workpiece. However, during the processing of the workpiece, debris and slag are generated and accumulated and adhered to the gaps between the bumps on the surface of the suction cup. It is difficult to remove them well, and too much accumulation will affect the adsorption and fixing effect of the suction cup and the processing quality of the workpiece. Utility Model Content

[0004] The utility model aims to provide a clamping and positioning component for a machining center, which can prevent the debris formed during machining from adhering and accumulating in the gap formed by the protrusion by storing the protrusion inside the suction cup during cleaning, thereby avoiding the accumulation of debris and affecting the machining quality of the workpiece and the clamping and fixing effect of the suction cup, so that the cleaning work can be carried out more conveniently and quickly.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A clamping and positioning assembly for a machining center, comprising a suction cup and a cross bar, wherein the top of the suction cup is fixedly connected with a sliding groove, the sliding groove is slidably assembled with a plurality of protrusions in an array, the bottom of the protrusion is fixedly connected with a connecting block, a plurality of the connecting blocks are fixedly connected through a connecting column, the cross bar is symmetrically fixedly connected to the two ends of the connecting block, the two ends of the cross bar are slidably connected with a second sliding rod, and the second sliding rod is fixedly connected with a fixed seat through a connecting rod fixedly connected at one end;

[0007] The suction cup is rotatably connected with a rotating rod on both sides, and a sliding rod 1 is slidably connected to the inner wall of the rotating rod. Wing plates are fixedly connected to both sides of the sliding rod 1 and one side of the suction cup. One end of the rotating rod is fixedly connected with a rotating plate, and both ends of the rotating plate are fixedly connected with top columns. The middle part of the cross bar is integrally cast with a snap-fitting opening for the top column to be rotatably embedded.

[0008] A sealing ring is fixedly connected to the outer wall of the protrusion and located below the sliding groove.

[0009] The bottom of the suction cup is fixedly connected to the fixing seat.

[0010] Positioning rods are fixedly connected in an array at both sides of the suction cup and located outside the first sliding rod.

[0011] A hole groove for the positioning rod to be embedded and fixed is provided inside the wing plate.

[0012] A fixing plate is fixedly connected inside the suction cup and located on one side of the cross bar.

[0013] The rotating rod is rotatably connected to the fixing plate.

[0014] The technical effect achieved by the utility model is that when cleaning, the protrusion is stored inside the suction cup to prevent the debris formed by processing from adhering and accumulating in the gap formed by the protrusion, thereby avoiding the accumulation of debris to affect the processing quality of the workpiece and the clamping and fixing effect of the suction cup, making the cleaning work more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall appearance diagram of the clamping and positioning assembly of the machining center provided by the embodiment of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 It is a structural disassembly diagram of a clamping and positioning assembly of a machining center provided in an embodiment of the utility model;

[0018] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0019] Figure 5 yes Figure 3 A partial enlarged view of point C in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Suction cup; 101. Bump; 102. Sliding groove; 103. Sliding rod 1; 104. Positioning rod; 105. Wing plate; 106. Rotating rod; 107. Fixed plate; 108. Rotating plate; 109. Top column; 2. Cross bar; 201. Engaging opening; 202. Connecting column; 203. Connecting block; 204. Sealing ring; 205. Sliding rod 2; 206. Fixed seat; 207. Connecting rod. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0023] like Figure 1-5 As shown, a clamping and positioning assembly for a machining center includes a suction cup 1 and a cross bar 2, the top of the suction cup 1 is fixedly connected with a sliding groove 102, the sliding groove 102 is slidably assembled with a plurality of protrusions 101 in an array, the bottom of the protrusion 101 is fixedly connected with a connecting block 203, the plurality of connecting blocks 203 are fixedly connected through a connecting column 202, the cross bar 2 is symmetrically fixedly connected to the two ends of the connecting block 203, the outer wall of the protrusion 101 and located below the sliding groove 102 is fixedly connected with a sealing ring 204, the two ends of the cross bar 2 are slidably connected with a second sliding rod 205, the second sliding rod 205 is fixedly connected with a fixing seat 206 through a connecting rod 207 fixedly connected at one end, and the bottom of the suction cup 1 is fixedly connected to the fixing seat 206;

[0024] Refer to the attached Figure 1-5 , rotating rods 106 are rotatably connected to the two sides of the suction cup 1, and the inner wall of the rotating rod 106 is slidably connected to the sliding rod 103, and wing plates 105 are fixedly connected to the two sides of the sliding rod 103 and on one side of the suction cup 1, and positioning rods 104 are fixedly connected in an array manner on both sides of the suction cup 1 and on the outer side of the sliding rod 103, and the interior of the wing plate 105 is provided with a hole groove for the positioning rod 104 to be embedded and fixed, and a fixing plate 107 is fixedly connected to the interior of the suction cup 1 and on one side of the cross bar 2, the rotating rod 106 is rotatably connected to the fixing plate 107, one end of the rotating rod 106 is fixedly connected to a rotating plate 108, and both ends of the rotating plate 108 are fixedly connected to top columns 109, and the middle part of the cross bar 2 is integrally cast with a snap-fitting opening 201 for the top column 109 to be rotatably embedded.

[0025] According to the above structure, after the processing work is completed, the sliding rod 103 is pulled outward to make the wing plate 105 disengage from the positioning rod 104, and the sliding rod 103 is rotated to drive the rotating rod 106 to rotate, and the fixed plate 107 fixes and supports the rotating rod 106. The rotation of the rotating rod 106 drives the rotating plate 108 and the top column 109 to rotate. When the rotating plate 108 rotates, the top column 109 leaves the engaging opening 201 and no longer engages with the engaging opening 201. The cross bar 2 is subjected to the pressure of the protrusion 101 and the connecting column 202 and descends along the sliding rod 205. The descent of the cross bar 2 will drive the connecting column 202, the connecting block 203 and the protrusion 101 to descend together, so that the protrusion 10 1 is retracted under the sliding groove 102, and the top of the protrusion 101 is flush with the sliding groove 102. At this time, the debris and chips on the top of the suction cup 1 can be cleaned. After cleaning, the above steps are reversed to reset the protrusion 101. The sealing ring 204 can prevent gas from leaking from the gap between the protrusion 101 and the sliding groove 102 after resetting. When cleaning, the utility model stores the protrusion 101 into the suction cup 1 to prevent the debris and chips formed during processing from adhering and accumulating in the gap formed by the protrusion 101, thereby avoiding the accumulation of debris and affecting the processing quality of the workpiece and the clamping and fixing function of the suction cup 1, so that the cleaning work can be carried out more conveniently and quickly.

[0026] The working principle of the utility model is as follows: after the processing work is completed, the sliding rod 103 is pulled outward to make the wing plate 105 separate from the positioning rod 104, the sliding rod 103 is rotated to drive the rotating rod 106 to rotate, the fixed plate 107 fixes and supports the rotating rod 106, the rotating rod 106 rotates to drive the rotating plate 108 and the top column 109 to rotate, when the rotating plate 108 rotates, the top column 109 leaves the engaging opening 201 and no longer engages with the engaging opening 201, and the cross bar 2 is subjected to the protrusion 101 and the connecting column 202. The pressure decreases along the sliding rod 205, and the decrease of the cross bar 2 will drive the connecting column 202, the connecting block 203 and the protrusion 101 to decrease together, so that the protrusion 101 is retracted under the sliding groove 102, and the top of the protrusion 101 is flush with the sliding groove 102. At this time, the debris on the top of the suction cup 1 can be cleaned. After cleaning, the above steps are reversed to reset the protrusion 101. The sealing ring 204 can prevent gas from leaking from the gap between the protrusion 101 and the sliding groove 102 after resetting.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A clamping and positioning assembly for a machining center, comprising a suction cup (1) and a crossbar (2), characterized in that: The top of the suction cup (1) is fixedly connected to a sliding groove (102), the sliding groove (102) is slidably assembled with a plurality of protrusions (101) in an array, the bottom of the protrusion (101) is fixedly connected to a connecting block (203), a plurality of the connecting blocks (203) are fixedly connected via a connecting column (202), the cross bar (2) is symmetrically fixedly connected to the two ends of the connecting block (203), the two ends of the cross bar (2) are slidably connected to a second sliding rod (205), and the second sliding rod (205) is fixedly connected to a fixing seat (206) via a connecting rod (207) fixedly connected at one end; The two sides of the suction cup (1) are rotatably connected to a rotating rod (106), the inner wall of the rotating rod (106) is slidably connected to a sliding rod (103), the two sides of the sliding rod (103) and one side of the suction cup (1) are fixedly connected to wing plates (105), one end of the rotating rod (106) is fixedly connected to a rotating plate (108), both ends of the rotating plate (108) are fixedly connected to a top column (109), and the middle part of the cross bar (2) is integrally cast with a snap-fitting opening (201) for the top column (109) to be rotatably embedded.

2. A clamping and positioning assembly for a machining center according to claim 1, characterized in that: A sealing ring (204) is fixedly connected to the outer wall of the protrusion (101) and located below the sliding groove (102).

3. The clamping and positioning assembly of a machining center according to claim 1, characterized in that: The bottom of the suction cup (1) is fixedly connected to the fixing seat (206).

4. The clamping and positioning assembly of a machining center according to claim 1, characterized in that: Positioning rods (104) are fixedly connected in an array on both sides of the suction cup (1) and located outside the sliding rod 1 (103).

5. The clamping and positioning assembly of a machining center according to claim 4, characterized in that: A hole groove for the positioning rod (104) to be embedded and fixed is provided inside the wing plate (105).

6. The clamping and positioning assembly of a machining center according to claim 1, characterized in that: A fixing plate (107) is fixedly connected inside the suction cup (1) and located on one side of the cross bar (2).

7. A clamping and positioning assembly for a machining center according to claim 6, characterized in that: The rotating rod (106) is rotatably connected to the fixing plate (107).

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