Rapid clamping device for mandrel machining

Abstract

The utility model discloses a quick clamping device for mandrel machining, which comprises a clamping seat, two groups of moving plates are arranged at the top of the clamping seat, two groups of clamping clamps are arranged at the tops of the moving plates, a moving groove is formed in the top of the clamping seat, a moving block is arranged in an inner cavity of the moving groove, and a clamping block is arranged in the inner cavity of the moving block. A movable screw hole is formed in the front face of the movable block, a movable screw rod is arranged in an inner cavity of the movable screw hole, and a servo motor is arranged on the back face of the clamping base. According to the rapid clamping device for mandrel machining, a mandrel is placed between the clamping clamps, a servo motor is used for driving a moving screw to be matched with a moving screw hole to drive a moving block in a moving groove and the clamping clamps to move towards the middle, and in the process that a sliding block in a sliding groove moves along with the moving screw hole, a clamping plate moves towards the middle and is matched with clamping teeth of a right triangle to limit the position of the sliding block; the position of the movable plate is limited, the purpose of improving the clamping stability of the mandrel is achieved, and the problem that an existing mandrel is prone to falling off and being damaged in the clamping process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of core shaft processing, in particular to a quick clamping device for core shaft processing. Background Art

[0002] The standard mandrel is a mechanical part that connects rotating parts. In the current mechanical field, the parts are interconnected to ensure the normal operation of large equipment. However, some standard mandrels are not convenient for fixing and connecting parts, and are not convenient for disassembly after connection. Some traditional standard mandrels use limit bars to position parts, but traditional limit bars cannot clamp and fix parts well, which affects the service life of parts and the use efficiency of mechanical equipment.

[0003] The patent with the authorization announcement number CN 216326728 U discloses a quick clamping device for mandrel processing, which includes a clamping frame, the top of which is fixedly connected to a clamping seat and a fixed plate, the surface of the fixed plate is connected to a threaded rod through a thread, one end of the threaded rod is rotatably connected to a movable plate through a bearing, and the surface of the movable plate is fixedly connected to a connecting block. The device can be automatically adjusted according to the thickness of the mandrel, thereby effectively avoiding the problem of unstable installation caused by the mandrel being too thick or too thin. At the same time, through the provision of a rubber pad, the surface of the mandrel can be protected, thereby greatly improving the practicality of the device. However, the device has the problem of being difficult to use during use. When this quick clamping device for mandrel processing fixes the mandrel on the clamping seat, although the mandrel can be stably fixed by two independently movable clamping plates, the position of the clamping plates is completely restricted by the action of the threaded rod and the fixed plate. When the mandrel is processed, a large part of the force borne by the mandrel during the processing will act on the junction of the threaded rod and the fixed plate. If the junction between the threaded rod and the fixed plate is damaged, the mandrel may fall off directly during the processing, which may cause damage to the mandrel or injury to the operator. For this reason, a quick clamping device for mandrel processing is proposed to solve the problem of easy falling and damage of the existing mandrel during clamping. Utility Model Content

[0004] The utility model aims to provide a quick clamping device for mandrel processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick clamping device for core shaft processing, comprising a clamping seat, two groups of movable plates are arranged on the top of the clamping seat, two groups of clamping clamps are arranged on the top of the movable plate, a movable groove is opened on the top of the clamping seat, a movable block is arranged in the inner cavity of the movable groove, a movable screw hole is opened on the front of the movable block, a movable screw is arranged in the inner cavity of the movable screw hole, a servo motor is arranged on the back of the clamping seat, two groups of slide grooves are opened on the top of the clamping seat, a slider and a plurality of groups of clamping plates are arranged in the inner cavity of the slide groove, a plurality of clamping teeth are arranged in the inner cavity of the slide groove, and a flexible anti-slip pad is arranged on the front and the back of the clamping clamp.

[0006] Preferably, the moving block is fixedly connected to the moving plate, the moving screw hole passes through the inner cavity of the moving block, the thread directions of the two groups of moving screw holes in the inner cavity of the moving block are opposite, and the output shaft of the servo motor is fixedly connected to the moving screw.

[0007] Preferably, the slider is fixedly connected to the movable plate, and the clamping plate is fixedly connected to the slider.

[0008] Preferably, the shape of the latch teeth is a right triangle, the latch plate is located between two groups of the latch teeth, and the back side of the latch plate is chamfered.

[0009] Preferably, a fixing plate is fixedly connected to both the left and right sides of the clamping seat, and a fixing hole is formed on the top of the fixing plate.

[0010] Preferably, a buffer groove is provided on the top of the movable plate, and a sliding rod, a buffer block and a buffer spring are fixedly connected to the inner cavity of the buffer groove.

[0011] Preferably, the buffer block is fixedly connected to the clamping clamp, the buffer spring on the front side is located on the front side of the buffer block, and the buffer block and the buffer spring are located on the outer ring of the slide rod.

[0012] Preferably, grooves are provided on both sides of the clamping seat, the grooves are communicated with the sliding grooves, a limiting plate is provided in the inner cavity of the groove, the latch teeth are fixed on the top of the limiting plate, and a handle is fixedly connected to the right side of the limiting plate on the right side.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The quick clamping device for mandrel processing, through the coordinated use of a servo motor, a moving screw hole, a moving screw rod, a moving block, a moving groove, a slide groove, a slider, a clamping tooth, and a clamping plate, the mandrel is placed between the clamping clamps, the moving screw rod is driven by the servo motor, and the moving screw hole drives the moving block in the moving groove to move toward the middle together with the clamping clamp, and the slider in the slide groove moves accordingly, and the clamping plate moves toward the middle, and cooperates with the right-angled triangle clamping teeth to limit the position of the slider, that is, the position of the moving plate, thereby achieving the purpose of improving the stability of mandrel clamping and solving the problem that the mandrel is easy to fall off and be damaged during the existing clamping process.

[0015] 2. The quick clamping device for mandrel processing uses a buffer groove, a slide bar, a buffer block, and a buffer spring. When the clamping clamp contacts and clamps the mandrel, the clamping clamp can move outward under the action of the buffer block and the buffer spring on the outer ring of the slide bar in the buffer groove, thereby playing a certain buffering role and ensuring stable clamping of mandrels of different thicknesses, thereby avoiding direct hard contact between the clamping clamp and the mandrel, and achieving the purpose of buffering and clamping the mandrel. 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 cross-sectional view of the structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 4 The utility model structure Figure 3 Enlarged view of point A in the middle.

[0020] In the figure: 1. Clamping seat; 2. Moving plate; 3. Clamping clip; 4. Moving groove; 5. Moving block; 6. Moving screw hole; 7. Moving screw; 8. Servo motor; 9. Slide groove; 10. Slider; 11. Clamping plate; 12. Clamping teeth; 13. Flexible anti-skid pad; 14. Fixed plate; 15. Fixed hole; 16. Buffer groove; 17. Sliding rod; 18. Buffer block; 19. Buffer spring; 20. Groove; 21. Limiting plate; 22. Handle. DETAILED DESCRIPTION

[0021] 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.

[0022] Example: See Figure 1-4 The utility model provides a technical solution: a quick clamping device for mandrel processing, comprising a clamping seat 1, two groups of moving plates 2 are arranged on the top of the clamping seat 1, two groups of clamping clamps 3 are arranged on the top of the moving plate 2, a moving groove 4 is opened on the top of the clamping seat 1, a moving block 5 is arranged in the inner cavity of the moving groove 4, a moving screw hole 6 is opened on the front of the moving block 5, a moving screw rod 7 is arranged in the inner cavity of the moving screw hole 6, a servo motor 8 is arranged on the back of the clamping seat 1, two groups of slide grooves 9 are opened on the top of the clamping seat 1, a slider 10 and a plurality of groups of clamping plates 11 are arranged in the inner cavity of the slide groove 9, a plurality of clamping teeth 12 are arranged in the inner cavity of the slide groove 9, and a flexible anti-skid pad 13 is arranged on the back of the front clamping clamp 3.

[0023] Among them, the moving block 5 is fixedly connected to the moving plate 2, the moving screw hole 6 passes through the inner cavity of the moving block 5, the thread directions of the moving screw holes 6 in the inner cavities of the two groups of moving blocks 5 are opposite, and the output shaft of the servo motor 8 is fixedly connected to the moving screw 7.

[0024] The slider 10 is fixedly connected to the movable plate 2, and the clamping plate 11 is fixedly connected to the slider 10.

[0025] The shape of the latch teeth 12 is a right triangle, the latch plate 11 is located between two groups of latch teeth 12, and the back side of the front latch plate 11 is chamfered.

[0026] In this embodiment, the core shaft is placed between the clamping clamps 3, and the servo motor 8 is used to drive the moving screw 7, which cooperates with the moving screw hole 6 to drive the moving block 5 in the moving groove 4 to move together with the clamping clamp 3 toward the middle. During the movement of the slider 10 in the slide groove 9, the clamping plate 11 moves toward the middle and cooperates with the right-angled triangle clamping teeth 12 to limit the position of the slider 10, that is, the position of the moving plate 2, thereby achieving the purpose of improving the clamping stability of the core shaft.

[0027] The left and right sides of the clamping seat 1 are both fixedly connected with fixing plates 14 , and the top of the fixing plate 14 is provided with fixing holes 15 .

[0028] In this embodiment, the quick clamping device for mandrel processing can be fixed at a desired position through the fixing hole 15 on the fixing plate 14 to process the mandrel.

[0029] A buffer groove 16 is provided on the top of the movable plate 2 , and a slide bar 17 , a buffer block 18 and a buffer spring 19 are fixedly connected to the inner cavity of the buffer groove 16 .

[0030] The buffer block 18 is fixedly connected to the clamping clamp 3 , the front buffer spring 19 is located on the front of the buffer block 18 , and the buffer block 18 and the buffer spring 19 are located on the outer ring of the slide rod 17 .

[0031] In this embodiment, when the clamping clamp 3 contacts and clamps the core shaft, the clamping clamp 3 can move outward under the action of the buffer block 18 and the buffer spring 19 on the outer ring of the slide rod 17 in the buffer groove 16, thereby playing a certain buffering role while ensuring stable clamping of the core shaft at different coarse and fine positions, thereby avoiding direct hard contact between the clamping clamp 3 and the core shaft, thereby achieving the purpose of buffering and clamping the core shaft.

[0032] Among them, grooves 20 are opened on the left and right sides of the clamping seat 1, the grooves 20 are interconnected with the slide groove 9, the inner cavity of the groove 20 is provided with a limit plate 21, the latch tooth 12 is fixed on the top of the limit plate 21, and the right side of the right limit plate 21 is fixedly connected with a handle 22.

[0033] In this embodiment, when the processing of the core shaft is completed, due to the action of the clamping plate 11 and the locking tooth 12, the clamping clamp 3 on the movable plate 2 cannot move outward to loosen the core shaft. At this time, the handle 22 is used to move the limit plate 21 in the groove 20 together with the locking tooth 12 outward, so that the clamping plate 11 is freed from the restraint of the locking tooth 12. In this way, the servo motor 8 can be used to move the movable plate 2 outward to loosen the core shaft, thereby ensuring that the core shaft can be smoothly removed from the quick clamping device for this processing.

[0034] Working principle: When it is necessary to use this quick clamping device for mandrel processing, the mandrel to be processed can be placed between the clamping clamps 3 on the clamping seat 1, and then the servo motor 8 is turned on to drive the moving screw 7 on the output shaft to rotate, and then under the action of the moving screw hole 6, the moving block 5 in the moving groove 4 is driven to move toward the middle together with the clamping clamp 3. At the same time, during the movement of the slider 10 in the slide groove 9, the clamping plate 11 moves toward the middle, and cooperates with the right-angled triangle clamping teeth 12 to ensure that the slider 10 cannot move outward, that is, the moving plate 2 is fixed for the second time, so as to achieve the purpose of improving the stability of the mandrel clamping and solve the problem that the mandrel is easy to fall off and be damaged during the existing clamping process; when the clamping clamp 3 is used to contact and clamp the mandrel, the clamping clamp 3 can It moves outward under the action of the buffer block 18 and the buffer spring 19 on the outer ring of the slide bar 17 in the buffer groove 16, plays a certain buffering role while ensuring stable clamping of the core shaft at different thicknesses, so as to avoid direct hard contact between the clamping clamp 3 and the core shaft, thereby achieving the purpose of buffering and clamping the core shaft; when the core shaft is processed, due to the action of the clamping plate 11 and the clamping tooth 12, the clamping clamp 3 on the movable plate 2 cannot move outward to loosen the core shaft. At this time, the handle 22 is used to move the limit plate 21 in the groove 20 together with the clamping tooth 12 outward, so that the clamping plate 11 is freed from the restraint of the clamping tooth 12, so that the servo motor 8 can be used to move the movable plate 2 outward to loosen the core shaft, ensuring that the core shaft can be smoothly removed from the quick clamping device for this processing.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although 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 quick clamping device for mandrel processing, comprising a clamping seat (1), characterized in that: Two groups of movable plates (2) are arranged on the top of the clamping seat (1), two groups of clamping clips (3) are arranged on the top of the movable plates (2), a movable groove (4) is provided on the top of the clamping seat (1), a movable block (5) is provided in the inner cavity of the movable groove (4), a movable screw hole (6) is provided on the front of the movable block (5), a movable screw rod (7) is provided in the inner cavity of the movable screw hole (6), a servo motor (8) is arranged on the back of the clamping seat (1), two groups of slide grooves (9) are provided on the top of the clamping seat (1), a slider (10) and a plurality of groups of clamping plates (11) are provided in the inner cavity of the slide groove (9), a plurality of clamping teeth (12) are provided in the inner cavity of the slide groove (9), and a flexible anti-skid pad (13) is provided on the front and the back of the clamping clip (3).

2. A quick clamping device for mandrel processing according to claim 1, characterized in that: The moving block (5) is fixedly connected to the moving plate (2), the moving screw hole (6) passes through the inner cavity of the moving block (5), the thread directions of the two groups of the inner cavity moving screw holes (6) of the moving block (5) are opposite, and the output shaft of the servo motor (8) is fixedly connected to the moving screw rod (7).

3. A quick clamping device for mandrel processing according to claim 1, characterized in that: The slider (10) is fixedly connected to the movable plate (2), and the clamping plate (11) is fixedly connected to the slider (10).

4. A quick clamping device for mandrel processing according to claim 1, characterized in that: The shape of the latch teeth (12) is a right triangle, the latch plate (11) is located between two groups of the latch teeth (12), and the back side of the latch plate (11) is chamfered.

5. The quick clamping device for mandrel processing according to claim 1, characterized in that: The left and right sides of the clamping seat (1) are fixedly connected with a fixing plate (14), and the top of the fixing plate (14) is provided with a fixing hole (15).

6. A quick clamping device for mandrel processing according to claim 1, characterized in that: A buffer groove (16) is provided on the top of the movable plate (2), and a sliding rod (17), a buffer block (18) and a buffer spring (19) are fixedly connected to the inner cavity of the buffer groove (16).

7. A quick clamping device for mandrel processing according to claim 6, characterized in that: The buffer block (18) is fixedly connected to the clamping clamp (3), and the buffer spring (19) is located on the front side of the buffer block (18). The buffer block (18) and the buffer spring (19) are located on the outer ring of the slide rod (17).

8. A quick clamping device for mandrel processing according to claim 1, characterized in that: The left and right sides of the clamping seat (1) are both provided with grooves (20), the grooves (20) are interconnected with the slide grooves (9), the inner cavity of the grooves (20) is provided with a limit plate (21), the latching teeth (12) are fixed on the top of the limit plate (21), and the right side of the limit plate (21) on the right side is fixedly connected with a handle (22).

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