Screw tap clamping tool

Abstract

The utility model relates to the technical field of screw tap machining, in particular to a screw tap clamping tool which comprises a support, a circular shaft connected to the support, a sleeve nested on the circular shaft, an external thread arranged on the surface of the rear end of the circular shaft, an internal thread arranged on the inner wall of the rear end of the sleeve and matched with the external thread in a threaded mode, and an external spline arranged on the surface of the front end of the circular shaft. The front end of the sleeve is rotationally connected with a group of moving rings; the clamping blocks can be controlled to synchronously move towards the inner side or the outer side of the clamping sleeve by rotating the sleeve, and after a screw tap is inserted into the clamping sleeve, the clamping blocks are controlled to synchronously move towards the inner side of the clamping sleeve until the clamping blocks abut against the surface of the screw tap. The screw taps can be clamped in the clamping sleeve through the multiple sets of clamping blocks, so that the screw taps with different diameters can be fixed to the middle position of the clamping sleeve, and therefore the screw tap clamping device can adapt to the screw taps with different diameters and specifications and is high in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of wire tapping processing, in particular to a wire tap clamping tool. Background Art

[0002] A tap is a tool for processing internal threads, also known as a screw tap or a screw tap. It has grooves along the axial direction and is mainly used to tap out corresponding threads on the material to make the threads fit tightly. Taps are widely used in mechanical processing, especially in situations where internal threads are required.

[0003] During the tapping process, a clamping tool is needed to fix the tap. The existing tap clamping tool can only clamp taps of fixed diameter specifications. When taps of different diameter specifications need to be produced, multiple clamping tools need to be prepared, which has poor applicability. Utility Model Content

[0004] The utility model provides a tap clamping tool, which solves the technical problem in the prior art that only taps with fixed diameter specifications can be clamped and the applicability is poor.

[0005] In view of the above problems, the technical solution proposed by the present invention is:

[0006] The top end face of the fixing shaft is provided with a toothed connecting strip which is cooperatively connected with the toothed connecting strip and the toothed connecting strip is connected with the toothed connecting strip.

[0007] Furthermore, the driving assembly includes a gear ring fixedly sleeved on the plurality of groups of the screw sleeves, and a plurality of groups of racks fixedly connected to the movable ring and respectively meshed with the plurality of groups of the gear rings.

[0008] Furthermore, a rotating wheel is fixedly sleeved on the surface of the sleeve, and the surface of the rotating wheel is provided with anti-slip grooves.

[0009] Furthermore, a lighting lamp is installed on the top of the bracket.

[0010] Furthermore, the clamping block is an arc-shaped structure, and a rubber gasket is provided on its surface.

[0011] Furthermore, mounting holes are provided around the bottom plate of the bracket.

[0012] Compared with the prior art, the beneficial effect of the present invention is that by rotating the sleeve, several groups of clamping blocks can be controlled to move synchronously toward the inside or outside of the jacket. When the tap is inserted into the inside of the jacket, several groups of clamping blocks are controlled to move synchronously toward the inside of the jacket until several groups of clamping blocks touch the surface of the tap. Several groups of clamping blocks can clamp the tap in the jacket, so that taps of different diameters can be fixed in the middle position of the jacket. Therefore, it can adapt to taps of different diameters and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the circular shaft and sleeve in the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the circular shaft, sleeve and jacket in the utility model;

[0017] Figure 4 This is a schematic structural diagram of the internal thread and the movable ring in the present utility model;

[0018] Figure 5 This is a schematic structural diagram of the jacket and guide hole in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the clamping block and rubber gasket in the utility model.

[0020] In the figure: 1. Bracket; 2. Round shaft; 3. Sleeve; 4. External thread; 5. Internal thread; 6. External spline; 7. Moving ring; 8. Internal spline; 9. Jacket; 10. Screw sleeve; 11. Screw; 12. Clamping block; 13. Guide hole; 14. Rack; 15. Rotor; 16. Anti-slip groove; 17. Lighting lamp; 18. Rubber gasket; 19. Mounting hole; 20. Gear ring. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] See also Figure 1-6The cam 3 is provided with an internal thread 5 that cooperates with the external thread 4 and the internal thread 5, so that the cam 3 can move forward or backward along the surface of the cam 2 under the action of the thread drive between the external thread 4 and the internal thread 5. The front end surface of the cam 3 is provided with an external spline 6, and the front end of the cam 3 is rotatably connected to a group of movable rings 7, which are nested in the front end of the cam 2. The inner wall of the cam 3 is provided with an internal spline 8 that fits with the external spline 6. The movable ring 7 is rotatably connected to the front end of the cam 3. When the cam 3 drives the movable ring 7 at its front end to move back and forth, the movable ring 7 will be nested in the front end of the sleeve 3 to move back and forth. In this process, the movable ring 7 will not rotate with the sleeve 3 under the restriction of the external spline 6 and the internal spline 8 that fit together, so that the movable ring 7 can move back and forth along the front end surface of the sleeve 3 without Deflection occurs, the end of the circular shaft 2 is connected with a jacket 9, the inside of which can be inserted with a tap for processing, the outer side of the jacket 9 is rotatably connected with a plurality of sets of screw sleeves 10, and a driving assembly is provided between the mobile ring 7 and the plurality of sets of screw sleeves 10. When the sleeve 3 drives the mobile ring 7 to translate back and forth, the driving assembly can drive the plurality of sets of screw sleeves 10 to rotate synchronously, the internal thread of the screw sleeve 10 is connected with a screw 11, and the bottom end of the screw 11 is fixedly connected with a clamping block 12. The surface of the jacket 9 is provided with a plurality of guide Toward the hole 13, the clamping block 12 passes through the guide hole 13 and extends into the inner side of the jacket 9. The guide hole 13 matches the contour of the clamping block 12. Therefore, the clamping block 12 can slide toward the outside or inside of the jacket 9 under the guidance of the guide hole 13 without deflection. When the screw sleeve 10 rotates, it drives the screw 11 inside it to move toward the outside or inside of the jacket 9, and then the screw 11 can drive the clamping block 12 to slide toward the outside or inside of the jacket 9.

[0024] When in use, the tapping to be processed is inserted into the jacket 9. At this time, several groups of clamping blocks 12 extending into the interior of the jacket 9 will be located around the tapping. By rotating the sleeve 3, the movable ring 7 at the front end is driven to translate forward along the surface of the circular shaft 2. In this process, several groups of screw sleeves 10 can be driven to rotate synchronously by the driving assembly. At this time, the screws 11 threadedly connected to the interior of the several groups of screw sleeves 10 will move synchronously toward the inner side of the jacket 9, so that the clamping blocks 12 at the bottom end of the jacket 9 move synchronously toward the inner side of the jacket 9 until the several groups of clamping blocks 12 located around the tapping touch the surface of the tapping during the inward movement. Several groups of clamping blocks 12 can clamp the tapping in the jacket 9. The taps are clamped by synchronously moving inward, so that taps of different diameters can be fixed in the middle position of the sleeve 9. Therefore, it can adapt to taps of different diameters and has high applicability. After processing is completed, the sleeve 3 is rotated to drive the moving ring 7 at the front end to move backward along the surface of the circular shaft 2. During this process, several groups of screw sleeves 10 can be driven to rotate synchronously in the opposite direction through the driving assembly. At this time, the screws 11 threadedly connected to the inside of several groups of screw sleeves 10 will move synchronously toward the outside of the jacket 9, so that the clamping block 12 at the bottom end of the jacket 9 will move synchronously toward the outside of the jacket 9, and then the taps inside the jacket 9 are no longer clamped by the clamping block 12, and the processed taps can be taken out at this time.

[0025] For further information, see Figure 1-3 The driving assembly includes a gear ring 20 fixedly sleeved on several groups of screw sleeves 10, and several groups of racks 14 fixedly connected to the moving ring 7 and respectively meshed with several groups of gear rings 20. When the moving ring 7 moves back and forth, it will drive several groups of racks 14 to move back and forth. At this time, the several groups of racks 14 will drive the several groups of gear rings 20 meshed with them to rotate synchronously, thereby causing several groups of screw sleeves 10 to rotate synchronously under the drive of the gear rings 20.

[0026] For further information, see Figure 3 A rotating wheel 15 is fixedly mounted on the surface of the sleeve 3, and an anti-slip groove 16 is provided on the surface of the rotating wheel 15. When the sleeve 3 is rotated, the rotating wheel 15 is provided for the user to grasp. At the same time, the anti-slip groove 16 increases the friction resistance between the hand and the rotating wheel 15, making it easier for the user to rotate the sleeve 3.

[0027] For further information, see Figure 1 A lighting lamp 17 is installed on the top of the bracket 1. When the working environment is relatively dim, the lighting lamp 17 can illuminate the clamped tap, thereby facilitating the processing of the tap.

[0028] For further information, see Figure 6The clamping block 12 is an arc-shaped structure, and a rubber gasket 18 is provided on its surface. The arc-shaped clamping block 12 can fit more closely with the surface of the tap during the clamping process of the tap, and when the clamping block 12 clamps the tap, the rubber gasket 18 increases the frictional resistance between the surface of the clamping block 12 and the tap, effectively preventing sliding during the tapping process.

[0029] For further information, see Figure 1 The bottom plate of the bracket 1 is provided with mounting holes 19 around it. The bracket 1 can be fixed on the workbench as a whole by passing screws through the mounting holes 19.

[0030] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A tapping clamping tool, comprising a bracket (1), characterized in that: The bracket (1) is connected to a circular shaft (2), a sleeve (3) is nested on the circular shaft (2), a rear end surface of the circular shaft (2) is provided with an external thread (4), an inner wall of the rear end of the sleeve (3) is provided with an internal thread (5) threadedly matched with the external thread (4), a front end surface of the circular shaft (2) is provided with an external spline (6), a front end of the sleeve (3) is rotatably connected to a group of moving rings (7), the moving ring (7) is nested in the front end of the circular shaft (2), an inner spline (8) is provided on the inner wall of the moving ring (7) and is mutually matched with the external spline (6), the moving ring (7) and the front end of the sleeve (3) are connected. Rotationally connected, the end of the circular shaft (2) is connected with a jacket (9), the outer side of the jacket (9) is rotationally connected with a plurality of groups of screw sleeves (10), a driving assembly for driving the plurality of groups of screw sleeves (10) to rotate synchronously is provided between the movable ring (7) and the plurality of groups of the screw sleeves (10), the internal thread of the screw sleeve (10) is connected with a screw rod (11), the bottom end of the screw rod (11) is fixedly connected with a clamping block (12), the surface of the jacket (9) is provided with a plurality of groups of guide holes (13), the clamping block (12) passes through the guide holes (13) and extends into the inner side of the jacket (9).

2. The tapping clamping tool according to claim 1, characterized in that: The driving assembly comprises a gear ring (20) fixedly sleeved on a plurality of groups of the screw sleeves (10), and a plurality of groups of racks (14) fixedly connected to the moving ring (7) and respectively meshed with the plurality of groups of the gear rings (20).

3. The tapping clamping tool according to claim 1, characterized in that: A rotating wheel (15) is fixedly sleeved on the surface of the sleeve (3), and the surface of the rotating wheel (15) is provided with anti-slip grooves (16).

4. The tapping clamping tool according to claim 1, characterized in that: A lighting lamp (17) is installed on the top end of the bracket (1).

5. The tapping clamping tool according to claim 1, characterized in that: The clamping block (12) is an arc-shaped structure, and a rubber gasket (18) is provided on its surface.

6. The tapping clamping tool according to claim 1, characterized in that: The bottom plate of the bracket (1) is provided with mounting holes (19) around its periphery.

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