Machine tool clamp quick-changing device and machining center

Abstract

The utility model relates to a machine tool clamp quick-changing device and a machining center, the machine tool clamp quick-changing device comprises a support frame, a clamp quick-changing frame horizontally connected to the support frame in a sliding mode and a linear driving piece installed at one end of the support frame, one end of the support frame is used for being supported outside a machine tool, and the other end of the support frame is used for being supported outside the machine tool. The other end of the linear driving part is used for stretching into and being supported in a machine tool, the clamp quick-changing frame is used for supporting a clamp, and the driving end of the linear driving part is in transmission connection with the clamp quick-changing frame. By the adoption of the technical scheme, the technical problems that when an existing hoisting mode is suitable for a large integrated die-casting part machining center clamp, the occupied area is large, the hoisting efficiency is low, and the high-altitude hoisting risk is high can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to a machine tool fixture quick-change device and a machining center. Background Art

[0002] For the fixtures of the integrated die-casting parts processing center, they can usually be installed by cantilever crane into the machine tool. This lifting method is used for fixtures with a weight generally less than 300KG, such as: fixtures used for traditional machining of engine cylinder blocks, cylinder heads, new energy electric drives, power supplies, electronic controls and other small die-casting parts.

[0003] For this traditional lifting method, when it is used for machining fixtures for large (usually weighing about 1000KG) integrated die-casting parts processing, larger lifting equipment is required, such as KBK (lifting equipment of flexible combined suspension crane system), which has the disadvantages of occupying production space, low efficiency, and high safety risks. Utility Model Content

[0004] The utility model provides a machine tool fixture quick-change device and a machining center to solve the technical problems that the existing lifting method is suitable for large integrated die-casting parts machining center fixtures, such as large floor space occupation, low lifting efficiency and high risk of high-altitude lifting.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] In the first aspect, the utility model provides a machine tool fixture quick-change device, including a support frame, a fixture quick-change frame horizontally slidably connected to the support frame, and a linear drive component installed at one end of the support frame, one end of the support frame is used to support outside the machine tool, and the other end is used to extend into and support the machine tool, the fixture quick-change frame is used to support the fixture, and the driving end of the linear drive component is transmission-connected to the fixture quick-change frame.

[0007] The beneficial effects of the utility model are as follows: when the fixture needs to be replaced, the support frame is installed first, specifically, the other end of the support frame is extended into and supported in the machine tool, and the other end of the support frame is located directly below the fixture to maintain stable support of the support frame; then the fixture quick-change frame is driven by the linear drive to move and support directly below the fixture; then the installation and fixation of the fixture is loosened, so that the fixture is supported by the fixture quick-change frame; thereafter, the fixture quick-change frame and the fixture are pulled out of the machine tool at the same time by the linear drive, and then the replacement can be carried out, and finally the replaced fixture can be indirectly pushed into the machine tool by the linear drive; through the replacement device, no special lifting equipment is required, so as to improve the existing lifting method, which is suitable for large-scale integrated die-casting parts processing center fixtures, and has the technical problems of large floor space occupation, low lifting efficiency and high risk of high-altitude lifting.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the fixture quick-change rack includes a fixture tray horizontally slidably connected to the support frame and at least four lifting members installed on the fixture tray, each of the lifting members is evenly distributed on the fixture tray, and the lifting ends are used to support the fixture.

[0010] The beneficial effect of adopting the above further scheme is: when the fixture quick-change frame supports the fixture, before loosening the machine tool's fixation on the fixture, the lifting piece is first started so that the lifting end of the lifting piece abuts against the lower side of the fixture to form a stable support for the fixture, preventing the fixture from freely falling and ensuring safety.

[0011] Furthermore, the fixture quick-change rack also includes at least two positioning pins installed on the fixture tray, each of the positioning pins is distributed on the fixture tray, and the positioning pins are used to vertically position the fixture.

[0012] The beneficial effect of adopting the above further solution is that when the lifting member is started and the lifting end of the lifting member abuts against the lower side of the clamp, the positioning pin simultaneously positions the clamp to prevent the clamp from shifting during movement and ensure stability.

[0013] Furthermore, support grooves are provided on both sides of the fixture tray in the horizontal direction, and the support frame is horizontally slidably connected to the fixture tray through the two support grooves.

[0014] The beneficial effect of adopting the above further solution is that the support groove forms a limiting effect to ensure the consistency of the sliding direction of the fixture tray.

[0015] Furthermore, the fixture tray is rotatably connected to a connecting shaft, and the connecting shaft is connected to the driving end of the linear drive member.

[0016] The beneficial effect of adopting the above further solution is that the connection between the fixture tray and the linear drive member is achieved through the connecting shaft.

[0017] Furthermore, two sides of the clamp quick-change frame are slidably connected to the support frame, and the middle part of the clamp quick-change frame is connected to the linear drive component.

[0018] The beneficial effect of adopting the above further scheme is that when the fixture quick-change rack and the fixture are pulled out of the machine tool at the same time by the linear drive component and the fixture is replaced, it is convenient for the fork of a tool such as a forklift to enter between the sliding connection point and the middle connection point to realize the replacement of the fixture.

[0019] Furthermore, the support frame includes a support platform for supporting outside the machine tool and two parallel and spaced rails, one end of the two rails is fixedly connected to the support platform, and the other end extends into and is supported in the machine tool, and the two rails are horizontally slidably connected to the fixture quick-change frame at the same time.

[0020] The beneficial effect of adopting the above further solution is: using the track as the installation base for the fixture quick-change frame to slide and enter the machine tool, ensuring that the fixture is stably supported and replaced by the fixture quick-change frame.

[0021] Furthermore, the two rails are each provided with a plurality of support rollers spaced apart along the length direction thereof, and the support rollers are supported on the fixture quick-change frame.

[0022] The beneficial effect of adopting the above further solution is: by utilizing the rolling effect of the support roller, under the action of the linear drive component, the fixture quick-change frame is moved quickly and smoothly, driving the fixture to move, so as to quickly complete the replacement work.

[0023] In the second aspect, the utility model provides a machining center, including the machine tool fixture quick change device, and also includes a machine tool and a fixture installed on the machine tool, one end of the machine tool fixture quick change device is supported outside the machine tool, and the other end extends into and is supported inside the machine tool, and the other end of the machine tool fixture quick change device is supported on the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an axonometric drawing of the machining center of the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure;

[0026] Figure 3 This is a diagram of the use state of the machine tool fixture quick change device of the utility model;

[0027] Figure 4 It is an axonometric view of the machine tool fixture quick change device of the utility model;

[0028] Figure 5 for Figure 4 Enlarged view of part A in the middle;

[0029] Figure 6 It is a front view of the machine tool fixture quick-changing device of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Machine tool; 11. Connectors;

[0032] 2. Fixture;

[0033] 3. Support frame; 31. Support platform; 32. Track; 33. Support roller; 331. Horizontal fixing rod; 332. First roller; 34. Limiting roller; 341. Vertical rod; 342. Second roller;

[0034] 4. Clamp quick-change rack; 41. Clamp tray; 411. Support slot; 412. Connecting shaft; 42. Lifting piece; 43. Positioning pin;

[0035] 5. Linear drive components;

[0036] 6. Quick change space. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] In a first aspect, the utility model provides a quick-change device for machine tool fixtures, as described in detail below.

[0039] Example 1

[0040] like Figures 1 to 4 A machine tool fixture quick-change device includes a support frame 3, a fixture quick-change frame 4 horizontally slidably connected to the support frame 3, and a linear drive component 5 installed at one end of the support frame 3. One end of the support frame 3 is used to support outside the machine tool 1, and the other end is used to extend into and support the machine tool 1. The fixture quick-change frame 4 is used to support the fixture 2, and the driving end of the linear drive component 5 is transmission-connected to the fixture quick-change frame 4.

[0041] The beneficial effects of this embodiment are as follows: when the fixture 2 needs to be replaced, the support frame 3 is installed first, specifically, the other end of the support frame 3 is extended into and supported in the machine tool 1, and the other end of the support frame 3 is located directly below the fixture 2, so as to maintain the stable support of the support frame 3; then the linear drive 5 is used to drive the fixture quick-change frame 4 to move and support it directly below the fixture 2; then the installation and fixation of the fixture 2 is loosened, so that the fixture 2 is supported by the fixture quick-change frame 4; thereafter, the fixture quick-change frame 4 and the fixture 2 are pulled out of the machine tool 1 at the same time by the linear drive 5, and the replacement can be carried out, and finally the replaced fixture 2 is indirectly pushed into the machine tool 1 by the linear drive 5; through the replacement device, no special lifting equipment is required, so as to improve the existing lifting method, which is suitable for large-scale integrated die-casting parts machining center fixtures, and has technical problems such as large floor space, low lifting efficiency and high risk of high-altitude lifting.

[0042] Specifically, one end of the support frame 3 is fixed and supported at the operating door of the machine tool 1, the operating door of the machine tool 1 is opened, and the other end of the support frame 3 is extended into and supported in the machine tool 1. The fixture 2 enters and exits the machine tool 1 through the operating door of the machine tool 1.

[0043] When the fixture 2 to be replaced is removed from the fixture quick-change rack 4 and a new fixture 2 is placed on the fixture quick-change rack 4, this can be done by a forklift with a suitable rated lifting capacity.

[0044] By adopting the above scheme, it is only necessary to make a support frame 3 suitable for the machine tool 1, and install the support frame 3, the fixture quick-change frame 4 and the linear drive 5. It only needs to occupy part of the doorway of the machine tool 1, and the area of ​​the production site is very small. It can be dismantled and installed at any time, and can greatly save costs. In addition, in this replacement method, only the linear drive 5 is needed to complete the removal and replacement of the fixture 2, which can greatly shorten the replacement time. The traditional fixture replacement time using hoisting is at least 4h-5h, and this method can be achieved in 20mins at the fastest.

[0045] As a specific solution of the above embodiment, the linear drive 5 can be a scissor-type linear drive, a hydraulic cylinder, a pneumatic cylinder, a ball screw transmission mechanism, a crank slider transmission mechanism, and a push rod transmission mechanism, etc. In the figure, the linear drive 5 is shown as a scissor-type linear drive and is arranged horizontally.

[0046] Example 2

[0047] like Figures 4 to 6 On the basis of Example 1, the fixture quick-change rack 4 includes a fixture tray 41 horizontally slidably connected to the support frame 3 and at least four lifting members 42 installed on the fixture tray 41, each lifting member 42 is evenly distributed on the fixture tray 41, and the lifting end is used to support the fixture 2.

[0048] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the fixture quick-change frame 4 supports the fixture 2, before loosening the fixation of the machine tool 1 to the fixture 2, the lifting member 42 is first started, so that the lifting end of the lifting member 42 abuts against the lower side of the fixture 2 to form a stable support for the fixture 2, thereby preventing the fixture 2 from freely falling and ensuring safety.

[0049] As a specific solution of the above embodiment, the fixture tray 41 is a polygonal frame structure made of steel plates or steel pipes.

[0050] The lifting member 42 may be a hydraulic cylinder, the cylinder body of which is fixed on the fixture tray 41, and the piston end of which extends vertically upward. In the figure, four lifting members 42 are shown, and two are arranged at the two ends of the fixture tray 41. In other schemes, the lifting members 42 can also be five, six, seven, eight, etc.

[0051] Based on the above embodiment, a flexible block (not shown in the figure) is fixed to the piston end of the lifting member 42 . The flexible block can be made of hard rubber to form a flexible contact with the clamp 2 .

[0052] Example 3

[0053] like Figure 4 and Figure 5 On the basis of embodiments 1 and 2, the fixture quick-change rack 4 further includes at least two positioning pins 43 mounted on the fixture tray 41 , each positioning pin 43 is evenly distributed on the fixture tray 41 , and the positioning pins 43 are used to vertically position the fixture 2 .

[0054] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the lifting member 42 is started and the lifting end of the lifting member 42 abuts against the lower side of the clamp 2, the positioning pin 43 simultaneously forms a position for the clamp 2 to prevent the clamp 2 from being displaced during movement and ensure stability.

[0055] When in use, a socket for the upper end of the positioning pin 43 to fit and insert is provided at a corresponding position on the lower side of the clamp 2 .

[0056] As a specific solution of the above embodiment, the positioning pin 43 can be formed and installed by the market, and a VXF / VXE-PD type round pin can be selected, and a VXF / VXE-PC type diamond pin can also be selected. In the figure, two positioning pins 43 are provided, and are arranged at the two ends of the fixture tray 41 and are located between the two lifting parts 42. In other solutions, the positioning pins 43 can also be three, four, five, six, etc.

[0057] Example 4

[0058] like Figure 4 and Figure 5 On the basis of embodiments 1-3, support grooves 411 are provided on both sides of the fixture tray 41 in the horizontal direction, and the support frame 3 is horizontally slidably connected to the fixture tray 41 through the two support grooves 411 .

[0059] The beneficial effect of adopting the preferred solution in the above embodiment is that the support groove 411 forms a limiting function to ensure the consistency of the sliding direction of the clamp tray 41.

[0060] As a specific solution of the above embodiment, the support groove 411 may be opened in a horizontal direction, or may be opened vertically downward.

[0061] Example 5

[0062] like Figure 4 On the basis of embodiments 1-4, the fixture tray 41 is rotatably connected to a connecting shaft 412 , and the connecting shaft 412 is connected to the driving end of the linear driving member 5 .

[0063] The beneficial effect of adopting the preferred solution in the above embodiment is that the connection between the fixture tray 41 and the linear drive member 5 is achieved through the connecting shaft 412.

[0064] As a specific solution of the above embodiment, the connecting shaft 412 is vertically arranged, and its lower end can be fixedly or rotatably connected to the driving end of the linear drive member 5. In this embodiment, the lower end of the connecting shaft 412 can be fixedly or rotatably connected to the scissor-type structure end of the linear drive member 5. The upper end of the connecting shaft 412 can be rotatably connected to the fixture tray 41 through a bearing.

[0065] Example 6

[0066] like Figure 4 and Figure 6 On the basis of Examples 1-5, both sides of the clamp quick-change frame 4 are slidably connected to the support frame 3 to form two sliding support positions, and the middle part of the clamp quick-change frame 4 is connected to the linear drive member 5 to form a drive connection position, which is located in the middle of the two sliding support positions and forms a quick-change space 6 with the two sliding support positions respectively.

[0067] The beneficial effect of adopting the preferred scheme in the above embodiment is that when the fixture quick-change frame 4 and the fixture 2 are simultaneously pulled out of the machine tool 1 by the linear drive member 5 and the fixture 2 is replaced, it is convenient for the fork of a tool such as a forklift to enter the quick-change space 6 to replace the fixture 2.

[0068] As a specific solution of the above embodiment, the quick-change space 6 is a space formed by the driving connection position and the sliding support position in the horizontal direction to facilitate the entry of the forklift into the shelf.

[0069] Example 7

[0070] like Figure 3 and Figure 4 On the basis of Examples 1-6, the support frame 3 includes a support platform 31 for supporting outside the machine tool 1 and two parallel and spaced rails 32, one end of the two rails 32 is fixedly connected to the support platform 31, and the other end is used to extend into and support the machine tool 1, and the two rails 32 are horizontally slidably connected to the fixture quick-change frame 4 at the same time.

[0071] The beneficial effect of adopting the preferred solution in the above embodiment is that the track 32 is used as the installation base for the fixture quick-change frame 4 to slide and enter the machine tool 1, ensuring that the fixture 2 is stably supported and replaced by the fixture quick-change frame 4.

[0072] As a specific solution of the above embodiment, the support platform 31 is a frame structure welded by square steel, etc. The rail 32 can be made of square steel, and one end is welded to the upper end of the support platform 31 .

[0073] As one of the installation methods for the other end of the rail 32, a socket can be opened on the inner wall of the machine tool 1 for the other end of the rail 32 to be inserted into, so as to achieve stable support for the rail 32; as another installation method, a vertical support rod can be detachably connected to the other end of the rail 32, and the other end of the rail 32 is stably supported in the machine tool 1 through the vertical support rod. When dismantling is required, the vertical support rod can be removed first.

[0074] On the basis of the above embodiment, a universal wheel is fixed at the bottom of the supporting platform 31 , and the universal wheel can be a universal wheel with a braking function, so as to realize the movement of the supporting frame 3 .

[0075] On the basis of the above embodiment, a counterweight block may be arranged on the supporting platform 31 to keep the balance of the supporting frame 3 when the clamp 2 is moved.

[0076] Based on the above embodiment, a distance sensor facing the fixture tray 41 is provided at the other end of the track 32 to determine whether the fixture tray 41 is moved into position through the distance sensor, so that the newly replaced fixture 2 can be accurately positioned at the installation position after movement.

[0077] Example 8

[0078] like Figure 4 and Figure 5 On the basis of Embodiments 1-7, the two rails 32 are provided with a plurality of support rollers 33 at intervals along the length direction thereof, and the support rollers 33 are supported on the fixture quick-change frame 4 .

[0079] The beneficial effect of adopting the preferred solution in the above embodiment is that by utilizing the rolling effect of the support roller 33, under the action of the linear drive member 5, the fixture quick-change frame 4 is moved quickly and smoothly, driving the fixture 2 to move, so as to quickly complete the replacement work.

[0080] As a specific solution of the above embodiment, the support roller 33 includes a transverse fixing rod 331 and a first roller 332. The transverse fixing rod 331 is arranged transversely, and one end is fixedly connected to the track 32, and the other end extends transversely; the first roller 332 is rotatably connected to the other end of the transverse fixing rod 331 through a bearing, and the wheel surface of the first roller 332 is supported on the groove wall of the support groove 411 to form a rolling support for the clamp tray 41. Under the rolling action of the first roller 332, the clamp tray 41 can drive the clamp 2 to quickly complete the movement.

[0081] Based on the above embodiment, a plurality of limiting rollers 34 are arranged at intervals along the length direction on the upper sides of the two rails 32. The limiting rollers 34 include a vertical rod 341 whose lower end is fixedly connected to the rail 32 and a second roller 342 rotatably connected to the upper end of the vertical rod 341. The second roller 342 can be rotatably connected to the vertical rod 341 via a bearing, and the wheel surface of the second roller 342 abuts against the side wall of the clamp tray 41.

[0082] During the process of moving the fixture tray 41 , the second rollers 342 on the two rails 32 can form a horizontal limit for the fixture tray 41 to prevent the fixture tray 41 from moving out of position.

[0083] In a second aspect, the utility model provides a machining center, as described in detail below.

[0084] Example 9

[0085] like Figures 1 to 3 On the basis of embodiments 1-8, a machining center includes the above-mentioned machine tool fixture quick change device, and also includes a machine tool 1 and a fixture 2 installed in the machine tool 1. Connectors 11 arranged opposite to each other are fixed on the inner wall of the machine tool 1 by bolts, one end of the connector 11 is fixed to the inner wall of the machine tool 1 by bolts, and the other ends of the two connectors 11 are bent laterally toward each other and fixed to the fixture 2 by bolts.

[0086] The beneficial effect of adopting the preferred solution in the above embodiment is that when replacing the clamp 2, after the clamp 2 is supported by the lifting member 42 of the clamp quick-change frame 4, the connecting bolts between the two connecting members 11 and the clamp 2 are unscrewed to move and replace the clamp.

[0087] On the basis of the above embodiment, a V-shaped positioning block is provided on the connecting member 11 , and a positioning groove matched with the V-shaped positioning block is provided on the clamp 2 so as to facilitate the positioning and installation of the clamp 2 .

[0088] Based on the above embodiment, a plurality of evenly distributed Latin cylinders and reference pins are fixed on the connecting member 11, and the piston end of the Latin cylinder is connected to the clamp 2, so that the clamp 2 can be lowered by the Latin cylinder. The reference pin can form a positioning function when the clamp 2 rises and abuts against the connecting member 11, and serves as an installation reference.

[0089] In a third aspect, the utility model provides a method for quick-changing a machine tool fixture, as described in detail below.

[0090] Example 10

[0091] This embodiment is a method for quick-changing machine tool fixtures, which is implemented by the machining center described in Embodiment 9 and includes the following steps:

[0092] Maintaining the state of the machine tool 1 fixing the fixture 2 to be replaced;

[0093] The other end of the support frame 3 is extended into and supported in the machine tool 1 and fixed. Specifically, the support platform is fixed at the operating position door of the machine tool 1, and the other end of the track 32 is extended into the machine tool 1, and the end of the track 32 is fixed to the inner wall of the machine tool 1.

[0094] The linear drive component 5 drives the fixture quick-change frame 4 to move until the fixture quick-change frame 4 moves into the machine tool 1 and supports the fixture 2 to be replaced; during this process, the linear drive component 5 drives the fixture tray 41 to move, and after the lifting component 42 moves to the bottom of the fixture 2, the piston end of the lifting component 42 rises and abuts against the lower side of the fixture 2. At the same time, the positioning pin 43 realizes the positioning of the fixture 2, or the lifting component 42 is lowered onto the lifting component 42 by the Latin cylinder.

[0095] The machine tool 1 releases the fixation of the fixture 2 to be replaced, and the linear drive 5 drives the fixture quick-change frame 4 to move in the reverse direction until the fixture quick-change frame 4 moves to the outside of the machine tool 1, and drives the fixture 2 to be replaced to move to one end of the support frame 3; during this process, the linear drive 5 drives the fixture tray 41 to move in the reverse direction until the fixture tray 41 moves to the support platform 31 and is located outside the machine tool 1 to facilitate replacement.

[0096] The fixture 2 to be replaced is removed, and a new fixture 2 is placed on the fixture quick-change rack 4 . In this process, the fixture 2 to be replaced is removed by a forklift, and a new fixture 2 is placed on the fixture tray 41 .

[0097] The linear drive 5 drives the fixture quick-change frame 4 to move until the new fixture 2 moves to the installation position in the machine tool 1, and then it can be installed and fixed.

[0098] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0100] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0103] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A machine tool fixture quick change device, characterized in that: The invention comprises a support frame (3), a fixture quick-change frame (4) horizontally slidably connected to the support frame (3), and a linear drive component (5) installed at one end of the support frame (3); one end of the support frame (3) is used to be supported outside the machine tool (1), and the other end is used to extend into and be supported inside the machine tool (1); the fixture quick-change frame (4) is used to support the fixture (2); and the driving end of the linear drive component (5) is transmission-connected to the fixture quick-change frame (4).

2. A machine tool fixture quick change device according to claim 1, characterized in that: The clamp quick-change frame (4) comprises a clamp tray (41) horizontally slidably connected to the support frame (3) and at least four lifting members (42) installed on the clamp tray (41), each of the lifting members (42) is evenly distributed on the clamp tray (41), and the lifting ends are used to support the clamp (2).

3. A machine tool fixture quick change device according to claim 2, characterized in that: The fixture quick-change rack (4) further comprises at least two positioning pins (43) mounted on the fixture tray (41), each of the positioning pins (43) being evenly distributed on the fixture tray (41), and the positioning pins (43) are used to vertically position the fixture (2).

4. A machine tool fixture quick change device according to claim 2, characterized in that: Support grooves (411) are provided on both sides of the clamp tray (41) in the horizontal direction, and the support frame (3) is horizontally slidably connected to the clamp tray (41) via the two support grooves (411).

5. The machine tool fixture quick change device according to claim 2, characterized in that: The clamp tray (41) is rotatably connected to a connecting shaft (412), and the connecting shaft (412) is connected to the driving end of the linear driving member (5).

6. The machine tool fixture quick change device according to claim 1, characterized in that: Both sides of the clamp quick-change frame (4) are slidably connected to the support frame (3), and the middle part of the clamp quick-change frame (4) is connected to the linear drive component (5).

7. A machine tool fixture quick change device according to any one of claims 1 to 6, characterized in that: The support frame (3) comprises a support platform (31) for supporting outside the machine tool (1) and two parallel and spaced rails (32), one end of the two rails (32) being fixedly connected to the support platform (31), and the other end being used to extend into and be supported in the machine tool (1), and the two rails (32) being horizontally slidably connected to the fixture quick-change frame (4) at the same time.

8. A machine tool fixture quick change device according to claim 7, characterized in that: Both rails (32) are provided with a plurality of support rollers (33) at intervals along their length direction, and the support rollers (33) are supported on the clamp quick-change frame (4).

9. A machining center, characterized in that: It comprises a machine tool fixture quick-change device as described in any one of claims 1 to 8, and also comprises a machine tool (1) and a fixture (2) installed in the machine tool (1), one end of the machine tool fixture quick-change device is supported outside the machine tool (1), the other end extends into and is supported in the machine tool (1), and the other end of the machine tool fixture quick-change device is supported on the fixture (2).

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