Large machine tool collet chuck

Abstract

The utility model discloses a large-scale machine tool collet chuck, which relates to the technical field of collet chucks, and is characterized by comprising a collet chuck body, the auxiliary abutting mechanism is fixedly installed on the inner side of the circumference of the spring chuck body. The tightening rotating sleeve is connected to the peripheral side of the spring chuck body in a threaded rotating mode; the large machine tool machining milling cutter is fixedly installed in the middle of the front end of the collet chuck body, and the large machine tool machining milling cutter has the technical effects that the auxiliary abutting mechanism can be effectively extruded to move inwards by screwing down the rotating sleeve, so that an abutting pressing rod and an abutting pressing head in the auxiliary abutting mechanism move inwards to abut against the large machine tool machining milling cutter; therefore, the large machine tool machining milling cutter is more stable in machining.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring chuck technical field, concretely is a large -scale machine tool spring chuck. BACKGROUND

[0002] The chuck is called elastic chuck or collet, is a kind of cylindrical clamp for imprisoning drill bit or milling cutter, and is a kind of fixing device for fixing and reinforcing parts needing modification, when large -scale machine tool is processed, spring chuck is needed to effectively fix drill bit or milling cutter.

[0003] The existing spring chuck is extruded by the tightening sleeve on the outside in clamping, so that the chuck can extrude and clamp the drill bit or milling cutter, but only by extrusion to imprison, lack the second auxiliary fixing structure, so that the problem of instability in the imprisonment processing.

[0004] Therefore, we propose a new large -scale machine tool spring chuck to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] (I) the technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a large -scale machine tool spring chuck, which solves the problem that the existing spring chuck is extruded by the tightening sleeve on the outside in clamping, so that the chuck can extrude and clamp the drill bit or milling cutter, but only by extrusion to imprison, lack the second auxiliary fixing structure, so that the problem of instability in the imprisonment processing.

[0007] (II) technical scheme

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a large -scale machine tool spring chuck, comprising:

[0009] Spring chuck body;

[0010] Auxiliary contact mechanism, the auxiliary contact mechanism is installed and fixed in the circumferential inner side of spring chuck body;

[0011] Tightening rotating sleeve, the tightening rotating sleeve is screw thread rotationally connected on the side of spring chuck body;

[0012] Large -scale machine tool processing milling cutter, the large -scale machine tool processing milling cutter is installed and fixed in the front end intermediate position of spring chuck body;

[0013] The spring collet body comprises a first extruding head, one side of the first extruding head is provided with a second extruding head, one side of the second extruding head is provided with a third extruding head, a fourth extruding head is arranged between the second extruding head and the first extruding head, the lower end of the first extruding head, the second extruding head, the third extruding head and the fourth extruding head is fixedly connected with an extruding head base, the auxiliary abutting mechanism comprises a hollow sleeve, the outer end of the hollow sleeve is movably provided with an outer pressing ball head, the inner end of the outer pressing ball head is fixedly connected with a ball head connecting block, the inner end of the ball head connecting block is fixedly connected with a connecting end plate, the inner end of the connecting end plate is fixedly connected with a metal spring, the inner side of the metal spring is fixedly connected with an abutting pressing rod on the connecting end plate, and the inner end of the abutting pressing rod is fixedly connected with an abutting pressing head.

[0014] Preferably, the fourth extruding head comprises a bottom connecting block fixedly connected with the extruding head base, the upper end of the bottom connecting block is fixedly connected with an extruding lower end block, the inner side of the extruding lower end block is provided with an abutting mechanism mounting groove, and the upper end of the extruding lower end block is fixedly connected with an extruding upper end head.

[0015] Preferably, the outer wall of the extruding head base is provided with an outer thread groove.

[0016] Preferably, the metal spring, the ball head connecting block, the abutting pressing rod, the connecting end plate and the abutting pressing head are movably sleeved on the inner side of the hollow sleeve.

[0017] Preferably, the inner side of the first extruding head, the second extruding head, the third extruding head and the fourth extruding head is provided with a milling cutter clamping groove.

[0018] Preferably, the inner side of the first extruding head, the second extruding head, the third extruding head and the fourth extruding head is provided with an auxiliary abutting mechanism.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the utility model provides a large -scale machine tool spring collet, has the following beneficial effects:

[0021] 1, the utility model discloses a tightening rotary sleeve can effectively extrude auxiliary abutting mechanism and move in, make auxiliary abutting mechanism and abutting pressing rod and abutting pressing head move in and abut the large -scale machine tool processing milling cutter, so that the large -scale machine tool processing milling cutter is more stable in processing.

[0022] 2, the utility model discloses a supplementary mechanism structure is set up to fixedly assist the contact, and the outer pressure ball head is in the hollow sleeve and moves in when being extruded from outside, and the inner end of the outer pressure ball head is fixedly connected with the ball head connecting block, and the outer pressure ball head moves in and drives the ball head connecting block to move in, and the inner end of the ball head connecting block is fixedly connected with the connecting end plate, and the ball head connecting block drives the connecting end plate to move in, and the inner end of the connecting end plate is fixedly connected with the metal spring, and the metal spring is blocked in the hollow sleeve when moving in, and thus deforms, and the metal spring generates deformation restoring force, so that the external extrusion force can be effectively elastically restored when disappearing, and the inner side of the metal spring is fixedly connected with the contact pressure rod on the connecting end plate, and the contact pressure rod moves in when the connecting end plate moves in, and the inner end of the contact pressure rod is fixedly connected with the contact pressure head, and the contact pressure rod drives the contact pressure head to expose from the hollow sleeve, so that the large machine tool processing milling cutter can be effectively extruded and imprisoned. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is assembly three-dimensional structure schematic view of the utility model;

[0024] Figure 2 It is internal structure schematic view of the utility model;

[0025] Figure 3 It is fourth extrusion head structure schematic view of the utility model;

[0026] Figure 4 It is supplementary mechanism structure schematic view of the utility model;

[0027] Figure 5 It is supplementary mechanism partial structure schematic view of the utility model.

[0028] In the drawing:

[0029] 1, first extrusion head;2, large machine tool processing milling cutter;3, second extrusion head;4, third extrusion head;5, fourth extrusion head;51, extrusion upper end head;52, bottom connecting block;53, extrusion lower end block;54, contact mechanism installation slot;6, tight rotation cover;7, extrusion head base;71, outer thread groove;8, milling cutter clamping groove;9, outer pressure ball head;91, hollow sleeve;92, metal spring;93, ball head connecting block;94, contact pressure rod;95, contact pressure head;96, connecting end plate. DETAILED DESCRIPTION

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Example 1

[0032] This embodiment provides a technical solution: a large machine tool spring collet, such as... Figures 1-5 As shown, it includes a spring collet body, an auxiliary contact mechanism, a tightening rotating sleeve 6, and a large machine tool milling cutter 2.

[0033] The auxiliary abutment mechanism is installed and fixed on the inner circumference of the spring collet body. The spring collet body can play an auxiliary abutment role through the auxiliary abutment mechanism on the inner side. The tightening rotating sleeve 6 is threaded and rotated on the circumference of the spring collet body. When the tightening rotating sleeve 6 rotates and rises on the circumference of the spring collet body, the tightening rotating sleeve 6 can effectively tighten the upper end of the spring collet body, so that the upper end of the spring collet body can squeeze and imprison the machining tool inserted on the inner side. The large machine tool milling cutter 2 is installed and fixed at the middle position of the front end of the spring collet body. The spring collet body can effectively squeeze and imprison the large machine tool milling cutter 2 for machining.

[0034] The outer wall of the extrusion head base 7 is provided with an outer threaded groove 71, which allows the tightening rotating sleeve 6 to rotate and move in position.

[0035] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the auxiliary abutment mechanism includes a hollow sleeve 91. An external pressure ball head 9 is movably installed on the inner side of the outer end of the hollow sleeve 91. When the external pressure ball head 9 is subjected to external pressure, it moves inward within the hollow sleeve 91. A ball head connecting block 93 is fixedly connected to the inner end of the external pressure ball head 9. As the external pressure ball head 9 moves inward, it drives the ball head connecting block 93 to move inward. A connecting end plate 96 is fixedly connected to the inner end of the ball head connecting block 93. The ball head connecting block 93 then drives the connecting end plate 96 to move inward. A metal spring 92 is fixedly connected to the inner end of the connecting end plate 96. When the connecting end plate 96 moves inward... Because the metal spring 92 is blocked by the hollow sleeve 91, it deforms and generates a deformation restoration force. In this way, it can effectively elastically restore itself when the external extrusion pressure disappears. The inner side of the metal spring 92 is fixed to the connecting end plate 96 with an abutting rod 94. When the connecting end plate 96 moves inward, the abutting rod 94 moves inward. The inner end of the abutting rod 94 is fixed to an abutting head 95. The abutting rod 94 drives the abutting head 95 to protrude from the hollow sleeve 91, so that the large machine tool milling cutter 2 can be effectively squeezed and imprisoned.

[0036] The metal spring 92, the ball head connecting block 93, the abutting pressure rod 94, the connecting end plate 96 and the abutting pressure head 95 are movably sleeved on the inside of the hollow sleeve 91, so that the metal spring 92 can effectively deform, and the metal spring 92 can effectively drive the ball head connecting block 93, the abutting pressure rod 94, the connecting end plate 96 and the abutting pressure head 95 to restore to the original position when the deformation is restored.

[0037] In use, the spring chuck body and the tightening rotating sleeve 6 are correspondingly installed on a large machine tool, when the large machine tool is installed for machining a milling cutter 2, personnel place the large machine tool machining milling cutter 2 in the milling cutter clamping groove 8 on the inside of the first extrusion head 1, the second extrusion head 3, the third extrusion head 4 and the fourth extrusion head 5, and then the large machine tool drives the tightening rotating sleeve 6 to rotate and move upward on the side of the spring chuck body, so that the first extrusion head 1, the second extrusion head 3, the third extrusion head 4 and the fourth extrusion head 5 of the spring chuck body are tightened and extrude the milling cutter clamping groove 8, and the tightening rotating sleeve 6 can effectively extrude and assist the abutting mechanism to move inward, so that the abutting pressure rod 94 and the abutting pressure head 95 in the abutting mechanism move inward and abut against the large machine tool machining milling cutter 2, so that the large machine tool machining milling cutter 2 is more stable during machining.

[0038] Embodiment two

[0039] This embodiment is further optimized on the basis of embodiment one, and the same parts as the foregoing technical solutions will not be described again here, such as Figures 1-3 As shown in the figure, further, in order to better achieve the utility model, in particular, the following setting mode is adopted: the spring chuck body comprises a first extrusion head 1, one side of the first extrusion head 1 is provided with a second extrusion head 3, one side of the second extrusion head 3 is provided with a third extrusion head 4, a fourth extrusion head 5 is installed between the second extrusion head 3 and the first extrusion head 1, the lower end of the first extrusion head 1, the second extrusion head 3, the third extrusion head 4 and the fourth extrusion head 5 is fixedly connected with an extrusion head base 7, when the outside of the first extrusion head 1, the second extrusion head 3, the third extrusion head 4 and the fourth extrusion head 5 is extruded, the first extrusion head 1, the second extrusion head 3, the third extrusion head 4 and the fourth extrusion head 5 can deform and extrude and clamp on the extrusion head base 7;

[0040] The fourth extrusion head 5 comprises a bottom connecting block 52 fixedly connected with the extrusion head base 7, so as to be stably placed, the upper end of the bottom connecting block 52 is fixedly connected with an extrusion lower end block 53, the inside of the extrusion lower end block 53 is provided with an abutting mechanism installation slot 54, the extrusion lower end block 53 is fixedly connected with an auxiliary abutting mechanism through the abutting mechanism installation slot 54, the auxiliary abutting mechanism can be correspondingly installed, the upper end of the extrusion lower end block 53 is fixedly connected with an extrusion upper end head 51, so that the extrusion lower end block 53, the bottom connecting block 52 and the extrusion upper end head 51 can effectively deform when being extruded from the outside;

[0041] The inner side of the first extruding head 1, the second extruding head 3, the third extruding head 4 and the fourth extruding head 5 is provided with a milling cutter clamping groove 8, so that a large machine tool machining milling cutter 2 can be placed and installed, and the first extruding head 1, the second extruding head 3, the third extruding head 4 and the fourth extruding head 5 are the same in structure, so that effective installation can be realized.

[0042] The inner side of the first extruding head 1, the second extruding head 3, the third extruding head 4 and the fourth extruding head 5 is provided with a milling cutter clamping groove 8, so that a large machine tool machining milling cutter 2 can be placed and installed, and the first extruding head 1, the second extruding head 3, the third extruding head 4 and the fourth extruding head 5 are the same in structure, so that effective installation can be realized.

[0043] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification, etc. made on the basis of the present application to solve the same technical problem and realize the same technical effect is included in the protection scope of the present application.

Claims

1. A large machine tool spring collet, characterized in that, include: Spring collet body; An auxiliary abutment mechanism is installed and fixed on the inner circumference of the spring collet body; Tighten the rotating sleeve (6), which is threadedly rotatably connected to the periphery of the spring collet body; Large machine tool milling cutter (2), the large machine tool milling cutter (2) is installed and fixed at the middle position of the front end of the spring collet body; The spring collet body includes a first compression head (1), a second compression head (3) is installed on one side of the first compression head (1), a third compression head (4) is installed on one side of the second compression head (3), and a fourth compression head (5) is installed between the second compression head (3) and the first compression head (1). A compression head base (7) is fixedly connected to the lower ends of the first compression head (1), the second compression head (3), the third compression head (4), and the fourth compression head (5). The auxiliary abutment mechanism includes a hollow sleeve ( 91), an external pressure ball head (9) is movably installed on the inner side of the outer end of the hollow sleeve (91). A ball head connecting block (93) is fixedly connected to the inner end of the external pressure ball head (9). A connecting end plate (96) is fixedly connected to the inner end of the ball head connecting block (93). A metal spring (92) is fixedly connected to the inner end of the connecting end plate (96). An abutting pressure rod (94) is fixedly connected to the inner side of the metal spring (92) on the connecting end plate (96). An abutting pressure head (95) is fixedly connected to the inner end of the abutting pressure rod (94).

2. A large machine tool spring collet according to claim 1, characterized in that: The fourth extrusion head (5) includes a bottom connecting block (52) fixedly connected to the extrusion head base (7). The upper end of the bottom connecting block (52) is fixedly connected to an extrusion lower end block (53). The inner side of the extrusion lower end block (53) is provided with an abutment mechanism mounting groove (54). The upper end of the extrusion lower end block (53) is fixedly connected to an extrusion upper end head (51). The extrusion lower end block (53) is fixedly connected to an auxiliary abutment mechanism through the abutment mechanism mounting groove (54).

3. A large machine tool spring collet according to claim 1, characterized in that: The outer wall of the extrusion head base (7) is provided with an outer threaded groove (71).

4. A large machine tool spring collet according to claim 1, characterized in that: The metal spring (92), ball head connecting block (93), abutting rod (94), connecting end plate (96) and abutting head (95) are movably sleeved on the inside of the hollow sleeve (91).

5. A large machine tool spring collet according to claim 1, characterized in that: The inner sides of the first extrusion head (1), the second extrusion head (3), the third extrusion head (4) and the fourth extrusion head (5) are provided with milling cutter clamping grooves (8).

6. A large machine tool spring collet according to claim 1, characterized in that: An auxiliary abutment mechanism is installed on the inner side of the first extrusion head (1), the second extrusion head (3), the third extrusion head (4) and the fourth extrusion head (5).

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