Quick-change enhanced chuck to prevent the chuck from falling off

Abstract

The utility model discloses a quick change reinforced anti -batch head falling chuck relates to tool technical field, the tightening nut is connected on the connecting thread of mandril, and the front side of mandril is equipped with the pin hole, and the sleeve pipe is sleeved on the front end of mandril and is fixedly connected on the pin hole of mandril through the pin, and the spring is sleeved on the sleeve pipe, and the rear sleeve is sleeved on the sleeve pipe, and three mounting holes are equipped on the rear sleeve, three steel balls are arranged in the mounting hole respectively, the front sleeve is sleeved on the rear sleeve, and the front side of sleeve pipe is fixedly connected with the clamping spring, and the front sleeve is contacted with the clamping spring, the utility model realizes the installation and locking of batch head, makes batch head not easy to appear the phenomenon of falling, is applicable to the use under the complex environment, and is convenient to operate simultaneously, realizes the installation of batch head through the sleeve pipe, and realizes the clamping of batch head through the steel ball, makes batch head can install on the sleeve pipe fast, realizes the adhesion with rear sleeve through the tightening nut, makes rear sleeve not easy to move back, makes batch head not easy to fall off, can realize the locking of batch head.

Description

Technical Field

[0001] This utility model belongs to the field of tool technology, specifically relating to a quick-change enhanced chuck to prevent bit detachment. Background Technology

[0002] Chucks, also known as spring chucks or collets, are widely used in electric wrenches. They work by using a spring and a steel ball to hold the bit in place. However, in some complex environments, the following problems may arise: 1. When the bit is held in place by the steel ball, it can be fixed inside the sleeve. However, when it touches the front sleeve, the steel ball will disengage from the bit's slot, causing the bit to slip out.

[0003] Second, if the front sleeve becomes loose due to vibration or other reasons during use, the bit may easily fall off. Summary of the Invention

[0004] To address the problems mentioned in the background section, the purpose of this invention is to provide a quick-change, enhanced chuck to prevent bit detachment.

[0005] This utility model discloses a quick-change, enhanced anti-tweezers bit detachment chuck, comprising a spindle, a tightening nut, a pin, a rear sleeve, a spring, a tubing, a front sleeve, steel balls, and a retaining ring. The front side of the spindle has a connecting thread, and the tightening nut is connected to the connecting thread of the spindle. The front side of the spindle has a pin hole. The tubing is fitted onto the front end of the spindle and fixedly connected to the pin hole of the spindle by the pin. The spring is fitted onto the tubing. The rear sleeve is fitted onto the tubing and has three mounting holes, with three steel balls respectively placed in the mounting holes. The front sleeve is fitted onto the rear sleeve, and a retaining ring is fixedly connected to the front side of the tubing, with the front sleeve in contact with the retaining ring.

[0006] As a preferred embodiment: the tightening nut includes a tightening anti-slip body and a tightening hexagonal body, the rear side of the tightening anti-slip body is integrally connected to the tightening hexagonal body, and the outer side wall of the tightening anti-slip body is provided with anti-slip knurling.

[0007] As a preferred embodiment: the outer wall of the sleeve is provided with three steel ball movable grooves, the steel balls are movably connected to the steel ball movable grooves, and the front end of the sleeve is provided with a concave bit mounting groove, the steel ball movable grooves are connected to the bit mounting grooves.

[0008] Compared with existing technologies, the beneficial effects of this utility model are as follows: The installation and locking of the screwdriver bit are achieved through the cooperation of the mandrel, tightening nut, pin, rear sleeve, spring, sleeve, front sleeve, steel ball, and snap ring, making the bit less prone to falling off. This makes it suitable for use in complex environments and facilitates operation. Specific advantages include: I. This utility model uses a sleeve to install the screwdriver bit and uses steel balls to lock the bit in place, allowing the bit to be quickly installed on the sleeve.

[0009] Second, this utility model achieves a close fit with the rear sleeve by tightening the nut, making the rear sleeve less likely to shift backward and the bit less likely to fall off, thus locking the bit in place and making it suitable for use in complex environments. Attached Figure Description

[0010] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the screwdriver bit installation in this utility model; Figure 4 This is an exploded view of the present invention.

[0012] In the diagram: 1-Mandrel; 2-Tightening nut; 3-Pin; 4-Rear sleeve; 5-Spring; 6-Sleeve; 7-Front sleeve; 8-Steel ball; 9-Snap ring; 10-Screwdriver bit; 1-1-Connecting thread; 1-2-Pin hole; 4-1-Mounting holes; 6-1-Steel ball movement groove. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0014] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0015] Combination Figures 1 to 4The following is a description of this specific embodiment, which adopts the following technical solution: It includes a mandrel 1, a tightening nut 2, a pin 3, a rear sleeve 4, a spring 5, a sleeve 6, a front sleeve 7, steel balls 8, and a retaining ring 9. The front side of the mandrel 1 has a connecting thread 1-1, and the tightening nut 2 is connected to the connecting thread 1-1 of the mandrel 1. A pin hole 1-2 is opened on the front side of the mandrel 1. The sleeve 6 is sleeved on the front end of the mandrel 1 and fixedly connected to the pin hole 1-2 of the mandrel 1 by the pin 3. The pin 3 can fix the sleeve 6 to the mandrel 1. The spring 5 is sleeved on the sleeve 6. The rear sleeve 4 is sleeved on the sleeve 6. Three mounting holes 4-1 are opened on the rear sleeve 4, allowing the installation of steel balls 8. The three steel balls 8 are respectively set in the mounting holes 4-1. The front sleeve 7 is sleeved on the rear sleeve 4. A retaining ring 9 is fixedly connected to the front side of the sleeve 6, and the front sleeve 7 contacts the retaining ring 9, allowing the retaining ring 9 to fix the front sleeve 7.

[0016] Combination Figures 1 to 4 The illustration shows this specific embodiment. In this specific embodiment, the tightening nut 2 includes a tightening anti-slip body and a tightening hexagonal body. The tightening anti-slip body is integrally connected to the rear side of the tightening hexagonal body. The outer side wall of the tightening anti-slip body is provided with anti-slip knurling. The tightening anti-slip body can be tightened by hand, while the tightening hexagonal body can be tightened by a wrench, so that the tightening nut 2 fits against the rear sleeve 4.

[0017] Combination Figures 1 to 4 The illustration shows a specific embodiment. In this embodiment, the outer wall of the sleeve 6 is provided with three steel ball movable grooves 6-1. The steel ball movable grooves 6-1 can realize the movement of the steel ball 8. The steel ball 8 is movably connected to the steel ball movable grooves 6-1. The front end of the sleeve 6 is provided with a concave bit mounting groove. The steel ball movable grooves 6-1 are connected to the bit mounting groove.

[0018] The assembly method of this specific embodiment is as follows: tighten nut 2 onto mandrel 1, then install sleeve 6 onto mandrel 1, then place the assembly on a special machine to drill pin holes 1-2 on mandrel 1, then assemble pin 3 with mandrel 1, fixing pin 3 in pin holes 1-2, then assemble spring 5, rear sleeve 4 with sleeve 6, then install three steel balls 8 into the three mounting holes 4-1 of rear sleeve 4, then press front sleeve 7 onto steel balls 8, and use a press to compact front sleeve 7 with the assembly, finally installing snap ring 9 into the front groove of sleeve 6. The assembly is then complete. Figure 1 Its function is that when the user inserts the bit 10 into the sleeve 6, the hexagonal tail of the bit 10 will contact the steel ball 8 and push the steel ball 8 to move in the steel ball movable groove 6-1 of the sleeve 6. At the same time, the rear sleeve 4 will be pushed backward by the steel ball 8. After the bit 10 is installed, the bit 10 is locked by the steel ball 8. When the rear sleeve 4 stops moving, tighten the nut 2 forward to fit against the rear sleeve 4, thereby locking the bit 10 and preventing the bit 10 from falling off.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-change, enhanced anti-bite chuck, characterized in that: The assembly includes a spindle (1), a tightening nut (2), a pin (3), a rear sleeve (4), a spring (5), a sleeve (6), a front sleeve (7), steel balls (8), and a snap ring (9). The front side of the spindle (1) is provided with a connecting thread (1-1). The tightening nut (2) is connected to the connecting thread (1-1) of the spindle (1). The front side of the spindle (1) is provided with a pin hole (1-2). The sleeve (6) is sleeved on the front end of the spindle (1) and fixedly connected to the pin hole (1-2) of the spindle (1) by the pin (3). The spring (5) is sleeved on the sleeve (6). The rear sleeve (4) is sleeved on the sleeve (6). The rear sleeve (4) is provided with three mounting holes (4-1). Three steel balls (8) are respectively set in the mounting holes (4-1). The front sleeve (7) is sleeved on the rear sleeve (4). The front side of the sleeve (6) is fixedly connected with a snap ring (9). The front sleeve (7) is in contact with the snap ring (9).

2. The quick-change enhanced anti-bit-fall-off chuck according to claim 1, characterized in that: The tightening nut (2) includes a tightening anti-slip body and a tightening hexagonal body. The tightening anti-slip body is integrally connected to the rear side of the tightening hexagonal body, and anti-slip knurling is provided on the outer side wall of the tightening anti-slip body.

3. The quick-change enhanced anti-bit-fall-off chuck according to claim 1, characterized in that: The outer wall of the sleeve (6) is provided with three steel ball movable grooves (6-1), the steel ball (8) is movably connected to the steel ball movable grooves (6-1), and the front end of the sleeve (6) is provided with a concave bit mounting groove, the steel ball movable groove (6-1) is connected to the bit mounting groove.

Images