Sleeve quick-changing device

Abstract

The utility model relates to a sleeve quick-changing device which comprises a driving rod, a tightening sleeve and a supporting clamping block, a notch is formed in the side, facing the tightening sleeve, of the supporting clamping block, the tightening sleeve is arranged in the notch, the tightening sleeve is sleeved with a clamping sleeve in a sliding mode, and a spring is installed at the upper end of the clamping sleeve. The top of the spring is connected with the top of the tightening sleeve, and wedge-shaped blocks are arranged on the two symmetrical side walls of the notch in a protruding mode. According to the quick sleeve replacement device, during replacement, the tightening sleeve is aligned to the notch and then moves towards the interior of the notch, so that the tightening sleeve moves along the wedge-shaped block, the clamping sleeve slides upwards through abutting of the wedge-shaped block to compress the spring, and the ball in the tightening sleeve is arranged in the containing cavity of the clamping sleeve and is separated from the clamping groove of the driving rod; the driving rod can move out and then is arranged in the corresponding tightening sleeve, so that the tightening sleeve is slid to retreat from the notch, the spring rebounds, the clamping sleeve resetting ball is clamped into the clamping groove to form fixation, and rapid replacement is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a sleeve quick-change device. Background Art

[0002] Early brake master cylinders were mostly center valve and compensation hole structures, with two piston components inside. Both piston components have springs to control the piston return. One of the springs is fixed to the piston through a limit seat and a limit screw to form a piston component. With the gradual upgrade of vehicle braking systems, the brake master cylinder is required to have a large displacement and stable hydraulic output. The brake master cylinder has evolved into the current plunger structure. The piston component of the plunger structure is a riveted structure, and the riveting method is manual riveting. The high consistency of the components cannot be guaranteed, which affects product quality. Manual riveting requires different tooling and auxiliary tools due to different product types and sizes. A set of brake master cylinder assemblies and two piston components require auxiliary tools. The auxiliary tools are made of steel. Manual riveting is labor-intensive for operators, which consumes manpower and material resources and increases the labor intensity of operators. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a sleeve quick-change device, which can quickly and automatically replace the sleeve corresponding to the size of different product types.

[0004] The cam is secured to the upper edge of the support frame, and the cam is secured to the lower edge of the support frame by a spring, the spring being secured to the lower edge of the support frame by a spring.

[0005] A connecting plate is installed above the tightening sleeve, and the spring is located between the connecting plate and the clamping sleeve.

[0006] The tightening sleeve is connected to the connecting inner groove of the driving rod, the driving rod is provided with a connecting rod matched with the connecting inner groove, and the clamping groove is arranged on the connecting rod.

[0007] The cross section of the connecting inner groove is arranged in a square shape, and there are four balls, which are respectively slidably arranged on four surfaces of the connecting inner groove.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model discloses a sleeve quick-change device. When replacing, the tightening sleeve is aligned with the notch and then moved toward the inside of the notch, thereby moving along the wedge block, and the ferrule slides upward through the abutment of the wedge block to compress the spring, so that the ball in the tightening sleeve is placed in the accommodating cavity of the ferrule and disengages from the slot of the driving rod, so that the driving rod can go out and then be placed in the corresponding tightening sleeve, so that the tightening sleeve is slid out of the notch to make the spring rebound, and the ferrule resets the ball into the slot to be fixed, thereby realizing quick replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the sleeve quick-change device of the utility model;

[0011] Figure 2 It is a schematic cross-sectional structure diagram of the sleeve quick-change device of the utility model;

[0012] Figure 3 It is a schematic diagram of the enlarged structure of the inner groove of the utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the driving rod of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure of the tightening sleeve of the utility model;

[0015] Figure 6 It is a structural schematic diagram of the support block of the utility model.

[0016] Markings in the figure: 1. driving rod; 2. tightening sleeve; 3. supporting block; 4. clamping sleeve; 5. spring; 6. wedge block; 7. accommodating chamber; 8. slot; 9. connecting plate; 10. connecting inner groove; 11. connecting rod; 12. auxiliary plate; 13. ball. DETAILED DESCRIPTION

[0017] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0018] like Figure 1-Figure 6As shown, this embodiment provides a sleeve quick-change device, including a driving rod 1, a tightening sleeve 2 and a supporting block 3. The supporting block 3 is provided with a notch on one side facing the tightening sleeve 2. The tightening sleeve 2 is placed in the notch. A sleeve 4 is provided on the tightening sleeve 2. A spring 5 is installed on the upper end of the sleeve 4. The top of the spring 5 is connected to the top of the tightening sleeve 2. A connecting plate 9 is installed above the tightening sleeve 2. The spring 5 is located between the connecting plate 9 and the sleeve 4. The symmetrical side walls of the notch are A wedge block 6 is protruded, and the thickness of the wedge block 6 is arranged from large to small along the direction of the tightening sleeve 2 toward the supporting block 3. An inclined groove is provided at the bottom of the ferrule 4 to fit with the top of the wedge block 6. The tightening sleeve 2 is located below the ferrule 4 and an auxiliary plate 12 is installed to resist the bottom of the wedge block 6. The tightening sleeve 2 is provided with a ball 13 corresponding to the internal sliding of the ferrule 4. An accommodating cavity 7 for accommodating the ball 13 is provided at the bottom of the ferrule 4, and a groove 8 cooperating with the ball 13 is provided at the bottom of the driving rod 1. When replacing, the tightening sleeve 2 is aligned with the slot and then moved toward the inside of the slot, thereby moving along the wedge block 6, and the ferrule 4 slides upward through the support of the wedge block 6 to compress the spring 5, so that the ball 13 in the tightening sleeve 2 is placed in the accommodating cavity 7 of the ferrule 4 and disengaged from the slot 8 of the drive rod 1, so that the drive rod 1 can go out and then be placed in the corresponding tightening sleeve 2, so that the tightening sleeve 2 is slid out of the slot to make the spring 5 rebound, and the reset ball 13 of the ferrule 4 is stuck in the slot 8 to be fixed, so as to achieve quick replacement.

[0019] Furthermore, the connecting inner groove 10 connecting the tightening sleeve 2 and the driving rod 1 is provided with a connecting rod 11 matched with the connecting inner groove 10, and the clamping groove 8 is provided on the connecting rod 11. Specifically, the cross section of the connecting inner groove is arranged in a square shape, and there are four balls 13, which are respectively slidably arranged on the four faces of the square connecting inner groove 10. The connection and matching between the connecting rod 11 and the connecting inner groove 10 makes the rotation more stable, and the provision of four balls 13 makes the clamping more stable.

[0020] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A sleeve quick-change device, characterized in that: The cam is provided with a sleeve which is slidably mounted on the tightening sleeve, and a spring is installed on the upper end of the sleeve. The top of the spring is connected with the top of the tightening sleeve. The symmetrical side walls of the slot are protruding with wedge blocks. The thickness of the wedge blocks is arranged from large to small along the direction of the tightening sleeve toward the supporting block. An inclined groove which fits with the top of the wedge block is arranged below the sleeve. An auxiliary plate which abuts against the bottom of the wedge block is installed below the sleeve, and a ball is provided for the tightening sleeve to slide inside the sleeve corresponding to the sleeve. A receiving cavity for accommodating the ball is provided below the sleeve, and a slot which cooperates with the ball is provided below the driving rod.

2. A sleeve quick-change device according to claim 1, characterized in that: A connecting plate is installed above the tightening sleeve, and the spring is located between the connecting plate and the clamping sleeve.

3. A sleeve quick-change device according to claim 1, characterized in that: The tightening sleeve is connected to the connecting inner groove of the driving rod, the driving rod is provided with a connecting rod matched with the connecting inner groove, and the clamping groove is arranged on the connecting rod.

4. A sleeve quick-change device according to claim 3, characterized in that: The cross section of the connecting inner groove is in a square shape, and there are four balls, which are slidably disposed on four surfaces of the connecting inner groove.

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