Clamp for center hole machining

Abstract

The utility model relates to a center hole machining clamp which comprises a hollow base, a clamping structure used for hole machining is arranged at the top of the hollow base, a scrap collecting structure is arranged outside the hollow base, and the clamping structure comprises two supporting plates fixedly installed at the top of the hollow base. And a movable insertion plate is mounted between the two supporting plates in a sliding manner. According to the clamp for center hole machining, the multiple workpieces are supported through the movable inserting plate and the multiple containing frames, then the advancing and retreating air cylinder is unfolded to push the movable inserting plate and the multiple workpieces to move leftwards, and when two infrared sensors detect that the workpieces are located between the two movable clamps, the two movable clamps are controlled to clamp the workpieces; and after the workpieces are punched, the advancing and retreating air cylinder can be controlled to be unfolded again to push the second workpiece to move leftwards and be clamped by the two movable clamps, so that automatic feeding and clamping are performed in sequence, the working procedures of personnel can be reduced, and the effect of high clamping production efficiency is achieved.

Description

Technical Field

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

[0002] Chinese patent publication number CN220196960U proposes "a clamping device for processing the hole in the ball valve body". This technical solution points out the problem that "the existing technology is not convenient for clamping and positioning the center position of the ball valve body, which easily causes the ball valve body to deviate and affects the positioning accuracy during clamping, and further improves the reliability of valve body clamping". The utility model provides the following technical solution: "Through the cooperation between the positioning mechanism, the support seat, the sliding rod and the positioning plate, it can preferentially position the two sides of the valve body quickly. This arrangement ensures that the valve body is not prone to deviation during clamping, prevents the ball valve body from deviating and affects the positioning accuracy during clamping, and further improves the reliability of valve body clamping."

[0003] The above scheme has the following defects: the above fixture can only clamp one workpiece at a time when in use. After the workpiece drilling is completed, personnel need to take out the workpiece and then install a new workpiece for drilling. This repeated operation greatly reduces production efficiency. Therefore, a fixture for center hole processing is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a clamp for center hole processing, which has the advantage of high clamping production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fixture for center hole processing, comprising a hollow base, a clamping structure for hole processing is arranged on the top of the hollow base, and a debris collection structure is arranged on the outside of the hollow base.

[0006] The clamping structure includes two support plates fixedly installed on the top of the hollow base, a movable plug plate is slidably installed between the two support plates, a plurality of loading racks are fixedly installed on the bottom of the movable plug plate, a side bracket is fixedly installed on the right side of the two support plates, an advance and retreat cylinder that penetrates to the left side thereof is fixedly installed on the right side of the side bracket, a limit box is fixedly installed on the top of the two support plates, a movable clamp that penetrates to the inside thereof is movably installed on the top of the two limit boxes, a DC motor is fixedly installed on the outer side of the two limit boxes, a threaded rod that penetrates to the inside of the movable clamp is fixedly installed on the output end of the two DC motors, an infrared sensor is fixedly installed on the top of the two movable clamps, and a controller is fixedly installed on the top of the support plates.

[0007] Furthermore, the debris collection structure includes a collection box fixedly mounted on the surface of the hollow base, a No. 1 air duct penetrating into the interior of the hollow base is fixedly mounted on the left side of the collection box, a metal blocking net is slidably mounted inside the collection box, a suction fan is fixedly mounted on the right side of the collection box, and a No. 2 air duct penetrating into the interior of the collection box is fixedly mounted on the extraction end of the suction fan.

[0008] Furthermore, the top of the hollow base is an open structure, the width of the two support plates is smaller than the width of the hollow base, and the movable plug plate penetrates into the interior of the two support plates.

[0009] Furthermore, the plurality of the containing racks are through-connected to the movable plug plate, the bottoms of the plurality of the containing racks are provided with chip removal holes, the inner diameter of the chip removal holes is smaller than the inner diameter of the containing racks, and the left telescopic end of the advancing and retreating air cylinder is fixedly connected to the right side of the movable plug plate.

[0010] Furthermore, the two limit boxes are both located at the midpoint of the support plate, the two movable clamps slide forward and backward inside the two limit boxes respectively, and the two threaded rods are rotatably installed inside the two limit boxes respectively.

[0011] Furthermore, the two threaded rods are respectively threadedly installed inside the two movable clamps, the two infrared sensors are electrically connected to the controller, and the controller is electrically connected to the advance and retreat cylinder.

[0012] Furthermore, the hollow base is connected to the collection box through a No. 1 air duct, and the metal blocking net is located at one end close to the bottom of the collection box.

[0013] Furthermore, a sealing cover is hinged on the front of the collection box and is located in front of the metal blocking net, and the No. 2 air duct is located at the bottom of the metal blocking net.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The center hole processing fixture supports multiple workpieces through a movable insert plate and multiple loading racks. Then the advance and retreat cylinder can be expanded to push the movable insert plate and the multiple workpieces to the left. When the two infrared sensors detect that the workpiece is between the two movable clamps, the two movable clamps are controlled to clamp the workpiece. When the workpiece is completed, the advance and retreat cylinder can be controlled to expand again to push the second workpiece to the left and be clamped by the two movable clamps. In this way, automatic feeding and clamping in sequence can reduce the operating procedures of personnel, thereby achieving the effect of high clamping production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a back view of the utility model;

[0018] Figure 3 This is a component breakdown diagram of the utility model;

[0019] Figure 4 This is a structural diagram of the connection between the movable plugboard and the storage rack of the utility model;

[0020] Figure 5 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. Hollow base; 2. Support plate; 3. Mobile plug-in plate; 4. Container rack; 5. Side bracket; 6. Advance and retreat cylinder; 7. Limit box; 8. Mobile clamp; 9. DC motor; 10. Threaded rod; 11. Infrared sensor; 12. Controller; 13. Collection box; 14. No. 1 air duct; 15. Metal barrier net; 16. Suction fan; 17. No. 2 air duct. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 A medium-hole processing fixture in this embodiment includes a hollow base 1. The top of the hollow base 1 is an open structure. A clamping structure for hole processing is arranged on the top of the hollow base 1. A debris collection structure is arranged on the outside of the hollow base 1.

[0024] The clamping structure includes two support plates 2 fixedly installed on the top of the hollow base 1, the width of the two support plates 2 is smaller than the width of the hollow base 1, a movable plug plate 3 is slidably installed between the two support plates 2, the movable plug plate 3 penetrates into the interior of the two support plates 2, and a plurality of holding racks 4 are fixedly installed at the bottom of the movable plug plate 3, the movable plug plate 3 and the holding rack 4 are supported to slide on the top of the hollow base 1 by the two support plates 2, and the plurality of holding racks 4 are through-connected with the movable plug plate 3, and a chip discharge hole is opened at the bottom of the plurality of holding racks 4, and the inner diameter of the chip discharge hole is smaller than the inner diameter of the holding rack 4, and the bottom of the workpiece is supported by the installed holding rack 4, and then the metal debris generated by the opening falls into the interior of the hollow base 1 from the chip discharge port.

[0025] A side bracket 5 is fixedly installed on the right side of the two support plates 2, and an advance and retreat cylinder 6 is fixedly installed on the right side of the side bracket 5 and penetrates to its left side. The left telescopic end of the advance and retreat cylinder 6 is fixedly connected to the right side of the movable plug plate 3. The telescopic end of the advance and retreat cylinder 6 can drive the movable plug plate 3 and the loading rack 4 as well as the workpieces inside it to move left and right.

[0026] A limit box 7 is fixedly installed on the top of the two support plates 2, and the two limit boxes 7 are located at the midpoint of the support plate 2. A movable clamp 8 is movably installed on the top of the two limit boxes 7 and penetrates therein. The two movable clamps 8 slide forward and backward in the interior of the two limit boxes 7 respectively. A DC motor 9 is fixedly installed on the outer side of the two limit boxes 7. A threaded rod 10 that penetrates into the interior of the movable clamp 8 is fixedly installed on the output end of the two DC motors 9. The two threaded rods 10 are respectively rotatably installed in the interior of the two limit boxes 7. The two threaded rods 10 are respectively threadedly installed in the interior of the two movable clamps 8. The two DC motors 9 drive the two threaded rods 10 to rotate forward and reverse in the interior of the two limit boxes 7 respectively. The forward rotation of the two threaded rods 10 can make the two movable clamps 8 approach each other. When the two movable clamps 8 contact the outside of the workpiece, the workpiece can be clamped and fixed.

[0027] An infrared sensor 11 is fixedly installed on the top of the two movable clamps 8, and a controller 12 is fixedly installed on the top of the support plate 2. The two infrared sensors 11 are electrically connected to the controller 12, and the controller 12 is electrically connected to the advance and retreat cylinder 6. The two infrared sensors 11 emit infrared rays to detect the workpiece inside the movable plug plate 3. When the workpiece is detected, the signal is transmitted to the controller 12, and then the controller 12 controls the advance and retreat cylinder 6 to stop extending and retracting.

[0028] In this embodiment, the debris collection structure includes a collection box 13 fixedly mounted on the surface of the hollow base 1, a No. 1 air duct 14 penetrating into the interior of the hollow base 1 is fixedly mounted on the left side of the collection box 13, the hollow base 1 and the collection box 13 are connected through the No. 1 air duct 14, a metal blocking net 15 is slidably mounted inside the collection box 13, the metal blocking net 15 is located at one end close to the bottom of the collection box 13, a sealing cover located in front of the metal blocking net 15 is hinged on the front of the collection box 13, and a suction fan 16 is fixedly mounted on the right side of the collection box 13. The extraction end of 16 is fixedly installed with a No. 2 air duct 17 that penetrates into the collection box 13. The No. 2 air duct 17 is located at the bottom of the metal blocking net 15. The suction fan 16 operates through the No. 2 air duct 17 to extract the air inside the collection box 13. The collection box 13 in a vacuum state extracts the debris inside the hollow base 1 through the No. 1 air duct 14. The debris entering the collection box 13 is intercepted by the metal blocking net 15, and then the air is discharged to the outside with the operation of the suction fan 16. Finally, the sealing cover can be opened to remove the metal blocking net 15 to clean the debris inside the collection box 13.

[0029] It should be noted that, in this article, the control method of the utility model is controlled by a controller, the control circuit of the controller can be implemented by simple programming by technicians in this field, the provision of power is also common knowledge in this field, and the utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0030] The working principle of the above embodiment is:

[0031] When in use, first insert multiple workpieces that need to be drilled into the interior of multiple loading racks 4 from the top of the movable plug plate 3 in turn, then the advance and retreat cylinder 6 expands to push the movable plug plate 3 and the multiple workpieces to move to the left, when the two infrared sensors 11 detect that the workpiece is between the two movable clamps 8, the signal is transmitted to the controller 12, and then the controller 12 controls the advance and retreat cylinder 6 to stop expanding, and then the two DC motors 9 respectively drive the two threaded rods 10 to rotate forward so that the two movable clamps 8 are close to each other, so that the workpiece can be clamped and fixed, and after fixation, the external punching equipment can drill holes in the workpieces. After the drilling is completed, the two DC motors 9 drive the two threaded rods 10 to rotate in the opposite direction so that the two movable clamps 8 are away from each other, and then the advance and retreat cylinder 6 expands again to push the movable plug plate 3 and the workpiece to move to the left, and when the two infrared sensors 11 detect that the second workpiece is between the two movable clamps 8, the advance and retreat cylinder 6 is controlled to stop expanding, and then the above steps are repeated to reduce the process of personnel feeding and clamping.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing a middle hole, comprising a hollow base (1), characterized in that: The top of the hollow base (1) is provided with a clamping structure for hole processing, and the outside of the hollow base (1) is provided with a debris collection structure; The clamping structure comprises two support plates (2) fixedly mounted on the top of the hollow base (1), a movable plug plate (3) being slidably mounted between the two support plates (2), a plurality of loading racks (4) being fixedly mounted on the bottom of the movable plug plate (3), a side bracket (5) being fixedly mounted on the right side of the two support plates (2), an advance and retreat cylinder (6) penetrating to the left side thereof being fixedly mounted on the right side of the side bracket (5), a limit box (7) being fixedly mounted on the top of the two support plates (2), a movable clamp (8) penetrating to the inside thereof being movably mounted on the top of the two limit boxes (7), a DC motor (9) being fixedly mounted on the outer side of the two limit boxes (7), a threaded rod (10) penetrating to the inside of the movable clamp (8) being fixedly mounted on the output ends of the two DC motors (9), an infrared sensor (11) being fixedly mounted on the top of the two movable clamps (8), and a controller (12) being fixedly mounted on the top of the support plate (2).

2. A center hole processing fixture according to claim 1, characterized in that: The debris collection structure comprises a collection box (13) fixedly mounted on the surface of the hollow base (1); a first air duct (14) penetrating into the interior of the hollow base (1) is fixedly mounted on the left side of the collection box (13); a metal blocking net (15) is slidably mounted inside the collection box (13); a suction fan (16) is fixedly mounted on the right side of the collection box (13); and a second air duct (17) penetrating into the interior of the collection box (13) is fixedly mounted on the extraction end of the suction fan (16).

3. A center hole processing fixture according to claim 1, characterized in that: The top of the hollow base (1) is an open structure, the width of the two support plates (2) is smaller than the width of the hollow base (1), and the movable plug plate (3) penetrates into the interior of the two support plates (2).

4. A center hole processing fixture according to claim 1, characterized in that: The plurality of containing racks (4) are through-connected with the movable plug plate (3); the bottoms of the plurality of containing racks (4) are provided with chip removal holes, the inner diameter of the chip removal holes is smaller than the inner diameter of the containing racks (4); the left telescopic end of the advancing and retreating cylinder (6) is fixedly connected to the right side of the movable plug plate (3).

5. The hole processing fixture according to claim 1, characterized in that: The two limit boxes (7) are both located at the midpoint of the support plate (2), the two movable clamps (8) slide forward and backward inside the two limit boxes (7), and the two threaded rods (10) are rotatably installed inside the two limit boxes (7).

6. A center hole processing fixture according to claim 1, characterized in that: The two threaded rods (10) are respectively threadedly installed inside the two movable clamps (8), the two infrared sensors (11) are electrically connected to the controller (12), and the controller (12) is electrically connected to the advancing and retreating cylinder (6).

7. A center hole processing fixture according to claim 2, characterized in that: The hollow base (1) is connected to the collection box (13) via a No. 1 air duct (14), and the metal blocking net (15) is located at one end close to the bottom of the collection box (13).

8. A center hole processing fixture according to claim 2, characterized in that: The front of the collection box (13) is hinged with a sealing cover located in front of the metal blocking net (15), and the No. 2 air duct (17) is located at the bottom of the metal blocking net (15).

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