Clamp with workpiece overturning function

Abstract

The clamp with the workpiece overturning function comprises a base, a first rotating shaft is arranged at the top of the base in a rotating and penetrating mode, a tray is fixedly connected to the top end of the first rotating shaft, a first driving mechanism used for driving the first rotating shaft is installed on the base, a U-shaped seat is fixedly connected to the top of the tray, and the U-shaped seat is fixedly connected to the top end of the first rotating shaft. A connecting seat is arranged on the inner side of the U-shaped seat, a second rotating shaft and a third rotating shaft are symmetrically and fixedly connected to the two ends of the connecting seat, and a driving box is fixedly connected to the outer wall of the U-shaped seat; the connection angles between the base and the U-shaped seat, between the U-shaped seat and the connecting seat and between the connecting seat and the three-jaw chuck are adjusted through the matching of the worm gear and the worm, the self-locking characteristic of the worm gear and the worm is utilized, and the jackscrew, the first hand-screwing bolt and the second hand-screwing bolt are used in a matched mode, so that the stability of a workpiece in the machining process can be ensured, and the machining precision is improved. And the overturning angle of the workpiece cannot be limited or interfered, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to a clamp, in particular to a clamp with a workpiece turning function. Background Art

[0002] In the process of machining workpieces, it is often necessary to flip or rotate the workpiece to process different outer surfaces of the workpiece. Therefore, it is necessary to use a fixture with a flipping function to clamp the workpiece to reduce the number of clamping times of the workpiece and improve processing efficiency.

[0003] After searching, the patent with announcement number CN218657963U discloses a workpiece clamp with a flipping structure, in which the handle can drive the chuck to rotate, so that the part can be rotated, and the processing of the circumferential part and the outer end face of the part can be realized, and the handle can be locked by pin 2, which is convenient for subsequent operations; by rotating the rotating handle, the rotating frame can be rotated to complete the flipping of the part, and the fixed block can lock the gear 1 to fix the flipping position; by rotating the rotating frame first, the rotating frame and the upper device can be rotated as a whole, so as to realize the use requirements of multiple angles of the circumference.

[0004] However, the above scheme has some defects in use. For example, the locking between the chuck and the shell is achieved by the cooperation of pin 2 and the circular hole on the fixed ring, which will greatly limit the connection angle between the chuck and the shell. The angle locking between the shell and the rotating frame is achieved by the meshing of the gear and the fixed block, so there is a great limitation on the connection angle between the shell and the rotating frame. Similarly, the angle locking between the rotating frame and the base is achieved by the cooperation of pin 1 and different fixing holes, which also has a great limitation on the connection angle. For this reason, we propose a clamp with a workpiece flipping function. Utility Model Content

[0005] The purpose of the utility model is to provide a clamp with a workpiece flipping function to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The top end of the first rotating shaft is fixedly connected to the tray, and the top end of the first rotating shaft is fixedly connected to the tray, and the base is installed with a first driving mechanism for driving the first rotating shaft. The top of the tray is fixedly connected with a U-shaped seat, and a connecting seat is arranged on the inner side of the U-shaped seat, and two ends of the connecting seat are symmetrically fixedly connected to the second rotating shaft and the third rotating shaft. The outer wall of the U-shaped seat is fixedly connected to the driving box, and one end of the third rotating shaft penetrates into the driving box and is fixedly sleeved with a second worm gear. The second worm gear and the second worm gear are meshed with each other. The outer wall of the connecting seat is rotatably penetrated by a fourth rotating shaft, and one end of the fourth rotating shaft is fixedly connected to a three-jaw chuck, and the outer wall of the fourth rotating shaft located in the connecting seat is fixedly connected to the third worm gear, and the third worm gear is rotatably connected to the third worm gear in the connecting seat, and the third worm gear and the third worm gear are meshed with each other.

[0008] As a further solution of the utility model: the first driving mechanism includes a first worm gear rotatably installed in the base, one end of the first worm gear passes through the base and is fixedly connected to a handwheel, the outer wall of the first rotating shaft located in the base is fixedly sleeved with a first worm wheel, and the first worm wheel and the first worm gear are meshed with each other.

[0009] As a further solution of the utility model: a collar is fixedly connected to the top of the base, the tray is located on the inner side of the collar, and a top screw is connected to the outer wall of the collar through a threaded hole.

[0010] As a further solution of the utility model: one end of the second rotating shaft passes through the U-shaped seat and is rotatably sleeved with a sleeve, the sleeve is fixedly connected to the U-shaped seat, and the outer wall of the sleeve is connected with a first hand-tightened bolt through a threaded hole.

[0011] As a further solution of the utility model: the other end of the fourth rotating shaft passes through the connecting seat and is fixedly connected to a turntable, the rear wall of the connecting seat is fixedly connected to a U-shaped frame, the turntable is located on the inner side of the U-shaped frame, and the outer wall of the U-shaped frame is penetrated by a second hand-tightened bolt through a threaded hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The U-shaped seat and the connecting seat are connected by a screw thread, and the connecting seat and the three-jaw chuck are connected by a screw thread, and the connecting seat and the three-jaw chuck are connected by a screw thread. The U-shaped seat and the connecting seat are connected by a screw thread, and the connecting seat and the three-jaw chuck are connected by a screw thread, and the connecting seat and the three-jaw chuck are connected by a screw thread, and the two-jaw chuck are connected by a screw thread. The U-shaped seat and the connecting seat are connected by a screw thread, and the connecting seat and the three-jaw chuck are connected by a screw thread, and the two ... BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1The figure is a schematic diagram of the structure of a fixture with a workpiece flipping function.

[0015] Figure 2 for Figure 1 sectional view of .

[0016] Figure 3 The figure is a schematic diagram of the structure of a three-jaw chuck in a fixture with a workpiece flipping function.

[0017] Among them, the base 1, the first rotating shaft 2, the first worm gear 3, the first worm 4, the tray 5, the collar 6, the top screw 7, the U-shaped seat 8, the connecting seat 9, the second rotating shaft 10, the sleeve 11, the first hand-tightening bolt 12, the third rotating shaft 13, the driving box 14, the second worm gear 15, the second worm 16, the fourth rotating shaft 17, the three-jaw chuck 18, the third worm gear 19, the third worm 20, the handwheel 21, the turntable 22, the U-shaped frame 23, and the second hand-tightening bolt 24. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail in conjunction with the embodiments below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0022] See also Figures 1 to 3In an embodiment of the utility model, a fixture with a workpiece flipping function includes a base 1, a first rotating shaft 2 is rotatably penetrated through the top of the base 1, a tray 5 is fixedly connected to the top end of the first rotating shaft 2, a first driving mechanism for driving the first rotating shaft 2 is installed on the base 1, a U-shaped seat 8 is fixedly connected to the top of the tray 5, a connecting seat 9 is arranged on the inner side of the U-shaped seat 8, a second rotating shaft 10 and a third rotating shaft 13 are symmetrically fixedly connected at both ends of the connecting seat 9, a driving box 14 is fixedly connected to the outer wall of the U-shaped seat 8, one end of the third rotating shaft 13 is inserted into the driving box 14 and fixedly sleeved with a second worm gear 15, and a The second worm 16, the second worm wheel 15 and the second worm 16 are meshed with each other, the outer wall of the connecting seat 9 is rotatably penetrated with a fourth shaft 17, one end of the fourth shaft 17 is fixedly connected to a three-jaw chuck 18, the outer wall of the fourth shaft 17 located in the connecting seat 9 is fixedly connected to a third worm wheel 19, the connecting seat 9 is rotatably connected with a third worm 20, the third worm wheel 19 and the third worm 20 are meshed with each other, the cooperation between the second worm wheel 15 and the second worm 16, the third worm wheel 19 and the third worm 20 is self-locking, that is, the unfolded helix angle of the worm is smaller than the friction angle of contact between the worm wheel and the worm, and one end of the second worm 16 and the third worm 20 are connected to a handwheel 21.

[0023] By adopting the above-mentioned scheme, when in use, the utility model uses the three-jaw chuck 18 to clamp the workpiece, and then operates the first driving mechanism to drive the tray 5 to rotate, thereby driving the workpiece to rotate with the first rotating shaft as the rotating shaft. By operating the second worm 16 to rotate, the second worm 16 and the second worm wheel 15 can be used to drive the connecting seat 9 to rotate, thereby driving the workpiece to rotate with the third rotating shaft 13 as the rotating shaft. By rotating the third worm 20, the third worm wheel 19 can drive the fourth rotating shaft 17 to rotate, thereby driving the three-rotation chuck 18 to rotate, so as to rotate the workpiece. The operation is simple and convenient.

[0024] Specific combination Figure 2 In one embodiment of the utility model, the first driving mechanism includes a first worm 4 rotatably installed in the base 1, one end of the first worm 4 passes through the base 1 and is fixedly connected to a handwheel 21, the outer wall of the first rotating shaft 2 located in the base 1 is fixedly sleeved with a first worm wheel 3, the first worm wheel 3 and the first worm 4 are meshed with each other, and the cooperation between the first worm wheel 3 and the first worm 4 also has self-locking properties.

[0025] By rotating the first worm 4 through the hand wheel 21, the first worm wheel 3 and the first rotating shaft 2 can be driven to rotate, thereby driving the U-shaped seat 8 to rotate, and the operation is simple and convenient.

[0026] Specific combination Figure 2In one embodiment of the utility model, a collar 6 is fixedly connected to the top of the base 1, the tray 5 is located on the inner side of the collar 6, and a top screw 7 is connected to the outer wall of the collar 6 through a threaded hole.

[0027] By rotating the top screw 7 on the collar 6 so that its end is tightly against the peripheral wall of the tray 5, the tray 5 can be additionally fixed on the base 1 to improve the stability between the base 1 and the tray 5 during workpiece processing.

[0028] Specific combination Figure 2 In one embodiment of the utility model, one end of the second rotating shaft 10 passes through the U-shaped seat 8 and is rotatably sleeved with a sleeve 11, the sleeve 11 is fixedly connected to the U-shaped seat 8, and the outer wall of the sleeve 11 is connected with a first hand-tightened bolt 12 through a threaded hole.

[0029] By tightening the first hand-tightening bolt 12 so that its end is tightly against the outer surface of the second rotating shaft 10, the second rotating shaft 10 can be locked in the sleeve 11 to improve the stability between the connecting seat 9 and the U-shaped seat 8 during workpiece processing.

[0030] Specific combination Figure 1 In one embodiment of the utility model, the other end of the fourth rotating shaft 17 passes through the connecting seat 9 and is fixedly connected to a turntable 22. The rear wall of the connecting seat 9 is fixedly connected to a U-shaped frame 23. The turntable 22 is located on the inner side of the U-shaped frame 23. The outer wall of the U-shaped frame 23 is provided with a second hand-tightened bolt 24 through a threaded hole.

[0031] Tightening the second hand-tightening bolt 24 can fix the turntable 22 and the connecting seat 9, thereby improving the stability of the three-jaw chuck 18 on the connecting seat 9 during the workpiece processing.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixture with a workpiece flipping function, characterized in that: The invention comprises a base (1), a first rotating shaft (2) is rotatably penetrated through the top of the base (1), a tray (5) is fixedly connected to the top end of the first rotating shaft (2), a first driving mechanism for driving the first rotating shaft (2) is installed on the base (1), a U-shaped seat (8) is fixedly connected to the top of the tray (5), a connecting seat (9) is arranged on the inner side of the U-shaped seat (8), a second rotating shaft (10) and a third rotating shaft (13) are symmetrically fixedly connected at both ends of the connecting seat (9), a driving box (14) is fixedly connected to the outer wall of the U-shaped seat (8), one end of the third rotating shaft (13) penetrates into the driving box (14), and a driving box (14) is fixedly connected to the outer wall of the U-shaped seat (8). A second worm gear (15) is fixedly sleeved in the rear of the driving box (14), a second worm (16) is rotatably connected in the driving box (14), the second worm gear (15) and the second worm (16) are meshed with each other, a fourth rotating shaft (17) is rotatably penetrated through the outer wall of the connecting seat (9), one end of the fourth rotating shaft (17) is fixedly connected to a three-jaw chuck (18), the outer wall of the fourth rotating shaft (17) located in the connecting seat (9) is fixedly connected to a third worm gear (19), a third worm (20) is rotatably connected in the connecting seat (9), the third worm gear (19) and the third worm (20) are meshed with each other.

2. A fixture with a workpiece flipping function according to claim 1, characterized in that: The first driving mechanism comprises a first worm (4) rotatably mounted in the base (1); one end of the first worm (4) passes through the base (1) and is fixedly connected to a hand wheel (21); the outer wall of the first rotating shaft (2) located in the base (1) is fixedly sleeved with a first worm wheel (3); the first worm wheel (3) and the first worm (4) are meshed with each other.

3. A fixture with a workpiece flipping function according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a collar (6), the tray (5) is located inside the collar (6), and the outer wall of the collar (6) is connected with a top screw (7) through a threaded hole.

4. The fixture with workpiece flipping function according to claim 1, characterized in that: One end of the second rotating shaft (10) passes through the U-shaped seat (8) and is rotatably sleeved with a sleeve (11), the sleeve (11) is fixedly connected to the U-shaped seat (8), and the outer wall of the sleeve (11) is connected with a first hand-tightened bolt (12) through a threaded hole.

5. The fixture with workpiece flipping function according to claim 1, characterized in that: The other end of the fourth rotating shaft (17) passes through the connecting seat (9) and is fixedly connected to a rotating disk (22). The rear wall of the connecting seat (9) is fixedly connected to a U-shaped frame (23). The rotating disk (22) is located on the inner side of the U-shaped frame (23). The outer wall of the U-shaped frame (23) is provided with a second hand-tightened bolt (24) through a threaded hole.

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