Quick replacement mechanism for machine tool clamp

Abstract

The utility model discloses a machine tool clamp quick replacement mechanism which comprises a clamp body, an installation block is installed in the clamp body, an installation mechanism is installed on the surface of the installation block, the installation mechanism is fixedly connected with a limiting mechanism, a chuck is arranged at the outer end of the limiting mechanism in a sleeved mode, a pushing mechanism is installed in the limiting mechanism, and the pushing mechanism is fixedly connected with the installation block. And the surface of the mounting block is fixedly connected with a positioning column. The chuck is arranged on the surface of the inserting column in a sleeving mode, the adjusting stud can be rotated, the pushing block moves on the surface of the adjusting stud, at the moment, the pushing block extrudes the two sets of telescopic clamping blocks, the two sets of telescopic clamping blocks stretch out of the interior of the inserting column and are inserted into the chuck, the chuck can be installed, and the pushing block is far away from the telescopic clamping blocks; and the telescopic clamping block can be contracted into the inserting column through the elastic force of the reset spring, so that the chuck can be quickly disassembled, assembled and replaced effectively and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool fixtures, in particular to a quick replacement mechanism for machine tool fixtures. Background Technique

[0002] A machine tool fixture is a device on a machine tool used to clamp workpieces and guide cutting tools. It refers to a fixture specifically designed for a certain process of a certain workpiece. Its characteristics are compact structure, rapid, convenient and labor-saving operation, and it can ensure high machining accuracy and production efficiency.

[0003] When the existing machine tool fixture is in use, the anti-slip patterns on the surface of the clamping jaws will wear after long-term use. Therefore, when replacing, it is necessary to use auxiliary tools to disassemble them one by one and then install them one by one, resulting in a cumbersome replacement process. For this reason, we propose a quick replacement mechanism for machine tool fixtures to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a quick replacement mechanism for machine tool fixtures.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A quick replacement mechanism for machine tool fixtures includes a fixture main body. An installation block is installed inside the fixture main body, and an installation mechanism is installed on the surface of the installation block. The installation mechanism is fixedly connected with a limit mechanism, and a chuck is sleeved outside the limit mechanism. A pushing mechanism is installed inside the limit mechanism. A positioning column is fixedly connected to the surface of the installation block.

[0007] Preferably, the installation mechanism includes installation bolts. A connecting plate is installed on the surface of the installation block through the installation bolts, and the connecting plate is fixedly connected to the surface of the limit mechanism. By symmetrically arranging two groups of plug-in columns on the surface of the connecting plate through the installation bolts, the installation stability of the plug-in columns can be increased.

[0008] Preferably, the limit mechanism includes a plug-in column. A plug-in column is fixedly connected to the end face of the connecting plate, and one end of a return spring is welded to the inner wall of the plug-in column. The other end of the return spring is welded to a driving plate, and a telescopic clamping block is fixedly connected to the end of the driving plate. The return spring and the driving plate can facilitate the reset of the telescopic clamping block.

[0009] Preferably, first sliders are fixedly connected to both sides of the telescopic clamping block, and a chute adapted to the first sliders is opened on the inner wall of the plug-in column. The first sliders can play a role in limiting and guiding the telescopic clamping block.

[0010] Preferably, a jack adapted to the insertion post is provided inside the chuck. A through hole adapted to the telescopic latch is provided on the surface of the insertion post, and a groove adapted to the telescopic latch is provided on the inner wall of the jack. By providing the jack inside the chuck, the chuck can be sleeved on the surface of the insertion post.

[0011] Preferably, the pushing mechanism includes an adjusting stud. The outer end of the insertion post is mounted with an adjusting stud through a bearing, and a pushing block is sleeved on the surface of the adjusting stud. Second sliders are fixedly connected to both sides of the pushing block, and sliding grooves adapted to the second sliders are provided on the inner wall of the insertion post. By moving the pushing block, the second sliders can slide along the sliding grooves, playing a role in limiting and guiding the pushing block.

[0012] Preferably, the surfaces of both ends of the pushing block are beveled, and the surface of the telescopic latch is beveled, so that the pushing block can push the two telescopic latches.

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

[0014] 1. By sleeving the chuck on the surface of the insertion post, the adjusting stud can be rotated to move the pushing block on its surface. At this time, the pushing block squeezes the two telescopic latches, so that the two telescopic latches extend out of the insertion post and are inserted into the chuck, and the chuck can be installed. By moving the pushing block away from the telescopic latch, the telescopic latch can be contracted into the insertion post by the elastic force of the return spring itself, so that the chuck can be effectively and conveniently disassembled, assembled and replaced quickly.

[0015] 2. By passing the mounting bolt through the connecting plate, the whole insertion post can be conveniently disassembled and installed, and it is convenient to replace the accessories when they are damaged. At the same time, by the positioning posts fixed on both ends of the mounting block, the chuck can be conveniently positioned and installed, improving the stability after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of a rapid replacement mechanism for a machine tool fixture proposed by the present utility model;

[0017] Figure 2 is Figure 1 a three-dimensional schematic diagram of the structure of the chuck and the pushing mechanism in

[0018] Figure 3 is Figure 1 a three-dimensional schematic sectional view of the structure of the chuck in

[0019] Figure 4 is Figure 1 a three-dimensional schematic sectional view of the structure of the connecting plate and the insertion post in

[0020] In the figure: 1. Fixture main body; 2. Mounting block;

[0021] 3. Mounting mechanism; 31. Mounting bolt; 32. Connecting plate;

[0022] 4. Limiting mechanism; 41. Insertion column; 42. Return spring; 43. Driving plate; 44. Telescopic clamping block; 45. First slider;

[0023] 5. Chuck;

[0024] 6. Pushing mechanism; 61. Adjusting stud; 62. Pushing block; 63. Second slider;

[0025] 7. Positioning column. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Refer to Figures 1-4 , a rapid replacement mechanism for a machine tool fixture, including a fixture main body 1. An installation block 2 is installed inside the fixture main body 1, and an installation mechanism 3 is installed on the surface of the installation block 2. The installation mechanism 3 is fixedly connected to a limiting mechanism 4, and a chuck 5 is sleeved on the outer end of the limiting mechanism 4. A pushing mechanism 6 is installed inside the limiting mechanism 4. A positioning column 7 is fixedly connected to the surface of the installation block 2. Two groups of positioning columns 7 are symmetrically arranged on the surface of the installation block 2, and both groups of positioning columns 7 are cylindrical. Moreover, grooves adapted to the two groups of positioning columns 7 are provided inside the chuck 5, which can facilitate the insertion of the positioning columns 7 into the grooves, playing a role in positioning and installing the chuck 5.

[0028] Furthermore, referring to Figure 3 and Figure 4 it can be known that the installation mechanism 3 includes an installation bolt 31. A connecting plate 32 is installed on the surface of the installation block 2 through the installation bolt 31, and the connecting plate 32 is fixedly connected to the surface of the limiting mechanism 4. By threading the installation bolt 31 through the connecting plate 32 and screwing it into the installation block 2, it can facilitate the installation of the insertion column 41.

[0029] Furthermore, referring to Figure 3 and Figure 4 it can be known that the limiting mechanism 4 includes an insertion column 41. The insertion column 41 is fixedly connected to the end face of the connecting plate 32. One end of a return spring 42 is welded to the inner wall of the insertion column 41, and the other end of the return spring 42 is welded to a driving plate 43. The end of the driving plate 43 is fixedly connected to a telescopic clamping block 44. Through the elastic force of the driving plate 43 itself, it can facilitate the reset of the driving plate 43 driving the telescopic clamping block 44.

[0030] Further, referring to Figure 3 and Figure 4 it can be known that both sides of the telescopic clamping block 44 are fixedly connected with first sliders 45, and a sliding groove adapted to the first sliders 45 is formed in the inner wall of the insertion column 41. By moving the telescopic clamping block 44, the first sliders 45 can slide along the sliding groove, playing a role in limiting and guiding the telescopic clamping block 44.

[0031] Further, referring to Figure 3 and Figure 4 it can be known that a jack adapted to the insertion column 41 is formed inside the chuck 5, a through hole adapted to the telescopic clamping block 44 is formed on the surface of the insertion column 41, and a groove adapted to the telescopic clamping block 44 is formed in the inner wall of the jack. By inserting the telescopic clamping block 44 through the insertion column 41 into the chuck 5, it is convenient to install the chuck 5.

[0032] Further, referring to Figure 3 and Figure 4 it can be known that the pushing mechanism 6 includes an adjusting stud 61. The outer end of the insertion column 41 is installed with the adjusting stud 61 through a bearing, and a pushing block 62 is sleeved on the surface of the adjusting stud 61. Both sides of the pushing block 62 are fixedly connected with second sliders 63, and a sliding groove adapted to the second sliders 63 is formed in the inner wall of the insertion column 41. By rotating the adjusting stud 61, the pushing block 62 can move along its surface, facilitating the pushing block 62 to push the two telescopic clamping blocks 44.

[0033] Further, referring to Figure 3 and Figure 4 it can be known that the two end surfaces of the pushing block 62 are both arranged as inclined surfaces, and the surface of the telescopic clamping block 44 is provided with an inclined surface. By arranging the two end surfaces of the pushing block 62 as inclined surfaces, the inclined surface of the pushing block 62 can be pressed against the inclined surface of the telescopic clamping block 44, facilitating the pushing block 62 to push the two telescopic clamping blocks 44.

[0034] Working principle: When the present utility model is in use, when the fixture main body 1 is in use, according to the attached Figure 1 , attached Figure 2 , attached Figure 3 and attached Figure 4, by passing the installation bolt 31 through the connecting plate 32 and threadedly connecting it to the installation block 2, the plug post 41 can be installed on the surface of the installation block 2. At this time, the chuck 5 is sleeved on the surface of the plug post 41, and the positioning post 7 is inserted into the chuck 5. Thus, when the adjusting screw post 61 is rotated, the pushing block 62 can move along its surface. By the pushing block 62 squeezing the two sets of telescopic locking blocks 44, the telescopic locking blocks 44 can extend out from the inside of the plug post 41. And when the telescopic locking blocks 44 move, the driving plate 43 can drive the return spring 42 to be in a contracted state. Thus, when the telescopic locking blocks 44 pass through the plug post 41 and are inserted into the chuck 5, the chuck 5 can be installed on the surface of the plug post 41;

[0035] The above is the entire working principle of the present utility model.

[0036] In the present utility model, the installation methods, connection methods or setting methods of all the above-mentioned components are common mechanical methods, and the specific structures, models and coefficient indexes of all its components are its own technologies. As long as they can achieve their beneficial effects, they can be implemented, so no more details will be given.

[0037] The above embodiments are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

[0038] In the present utility model, unless otherwise stated, the orientation words such as "up and down, left and right, front and back, inside and outside, and vertical and horizontal" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms. At the same time, the numerical sequence terms such as "first", "second" and "third" do not represent specific quantities and orders, but are only used for name distinction. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A quick-change mechanism for a machine tool fixture, comprising a fixture body (1), characterized in that: A mounting block (2) is installed inside the clamp body (1), and a mounting mechanism (3) is installed on the surface of the mounting block (2); the mounting mechanism (3) is fixedly connected to a limiting mechanism (4), and a clamp (5) is sleeved on the outer end of the limiting mechanism (4); a pushing mechanism (6) is installed inside the limiting mechanism (4), and a positioning column (7) is fixedly connected to the surface of the mounting block (2).

2. A machine tool fixture quick change mechanism according to claim 1, characterized in that: The mounting mechanism (3) comprises mounting bolts (31), a connecting plate (32) is mounted on the surface of the mounting block (2) via the mounting bolts (31), and the connecting plate (32) is fixedly connected to the surface of the limiting mechanism (4).

3. A machine tool fixture quick change mechanism according to claim 2, characterized in that: The limiting mechanism (4) comprises a plug-in column (41), the end surface of the connecting plate (32) is fixedly connected to the plug-in column (41), and the inner wall of the plug-in column (41) is welded to one end of a return spring (42), the other end of the return spring (42) is welded to a driving plate (43), and the end of the driving plate (43) is fixedly connected to a telescopic block (44).

4. A machine tool fixture quick change mechanism according to claim 3, characterized in that: Both sides of the telescopic block (44) are fixedly connected to a first sliding block (45), and the inner wall of the plug-in column (41) is provided with a sliding groove matched with the first sliding block (45).

5. The machine tool fixture quick change mechanism according to claim 1, characterized in that: The chuck (5) has an insert hole inside that matches the insert column (41), the insert column (41) has a through hole on its surface that matches the telescopic block (44), and the inner wall of the insert hole has a groove that matches the telescopic block (44).

6. A machine tool fixture quick change mechanism according to claim 5, characterized in that: The pushing mechanism (6) comprises an adjusting stud (61), the outer end of the plug-in column (41) is mounted with the adjusting stud (61) via a bearing, and a pushing block (62) is sleeved on the surface of the adjusting stud (61), both sides of the pushing block (62) are fixedly connected with a second sliding block (63), and the inner wall of the plug-in column (41) is provided with a sliding groove matched with the second sliding block (63).

7. A machine tool fixture quick change mechanism according to claim 6, characterized in that: Both end surfaces of the pushing block (62) are arranged as inclined surfaces, and the surface of the telescopic clamping block (44) is arranged as an inclined surface.

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