Quick replacement clamp for machining center

Abstract

The utility model discloses a quick-change fixture for a machining center, which comprises a turntable, a plurality of groups of annularly distributed chutes are arranged in the turntable, magnetic sheets are fixedly connected to the front and rear walls of the middle of the inner side of each chute, connecting blocks are slidably connected to the inner sides of the chutes, and fixture bodies are arranged at the tops of the connecting blocks. Connecting grooves are formed in the middles of the side walls, close to the magnetic pieces, of the inserting blocks, and limiting rods are fixedly connected to the middles of the inner walls of the connecting grooves. According to the rapid replacement clamp for the machining center, when the clamp needs to be replaced, a push rod is pushed towards the inner side, and the push rod extrudes a clamping block towards the inner side in the pushing process, so that the clamping block retracts towards one side of a connecting groove; the clamping blocks are drawn out from the inner sides of the clamping grooves in the contraction process, the clamping blocks are separated from the clamping grooves, then the clamp body is pulled leftwards, the inserting blocks are drawn out of the inserting grooves, the clamp body can be detached, the detaching difficulty during clamp body replacement is reduced, and the clamp replacement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing fixture technical field, concretely is quick replacement fixture for machining center. BACKGROUND

[0002] At present, most domestic mechanical processing industry has realized the flexible production of machining center, and the products processed by machining center are diversified, and the special fixture is also diversified. When the machining center needs to process different types of products, the fixture needs to be replaced.

[0003] In the prior art, when the machining center needs to use different fixtures to clamp different workpieces, the fixture replacement steps are relatively cumbersome, which will cause a lot of time to be wasted on fixture replacement, affecting the working efficiency of the machining center, so there is an urgent need for quick replacement fixture for machining center. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0005] The utility model discloses a quick replacement fixture for machining center, which comprises a machining platform, and a quick replacement mechanism is arranged on the left side of the machining platform.

[0006] The quick replacement mechanism comprises a rotating disc, a plurality of groups of annularly distributed sliding grooves are arranged in the rotating disc, magnetic sheets are fixedly connected to the front and rear walls of the middle part of the inner side of the sliding groove, connecting blocks are slidably connected to the inner side of the sliding groove, fixture main bodies are arranged on the top of the connecting blocks, plug blocks are fixedly connected to the side wall away from the middle part of the rotating disc, connecting grooves are arranged in the middle part of the side wall close to the magnetic sheet of the plug block, limit rods are fixedly connected to the middle part of the inner wall of the connecting groove, the limit rods are connected to the inner side of the clamping block in a penetrating and sliding manner, springs are fixedly connected to the side wall away from the sliding groove, and the other end of the spring is fixedly connected to the middle part of the inner wall of the connecting groove.

[0007] As a preferred technical scheme of the utility model, a rotating shaft is fixedly connected to the middle part of the bottom wall of the rotating disc, and the rotating shaft is rotatably connected to the middle part of the left end of the top wall of the machining platform.

[0008] As a preferred technical scheme of the utility model, an installation groove is arranged in the middle part of the top wall of the machining platform, and an electric sliding table is arranged on the inner bottom wall of the installation groove.

[0009] As a preferred technical scheme of the utility model, a U-shaped plate is fixedly connected to the output end of the electric sliding table, and the U-shaped plate is gap matched with the connecting block.

[0010] As a preferred technical scheme of the utility model, an insertion groove is arranged in the middle part of the right wall of the installation groove, and clamping grooves are arranged in the middle part of the front and rear walls of the inner side of the insertion groove.

[0011] As a preferred technical scheme of the utility model, the clamping grooves are matched with the clamping blocks in gaps, and the insertion grooves are matched with the insertion blocks in gaps.

[0012] As a preferred technical scheme of the utility model, the clamping grooves are matched with the clamping blocks in gaps, and the insertion grooves are matched with the insertion blocks in gaps.

[0013] The utility model discloses the beneficial effect is:

[0014] 1, this kind of quick replacement fixture for machining center, when needing to replace the fixture, the push rod is pushed to the inboard, and the push rod is extruded to the inboard during the push process, and the clamping block is retracted to the one side of the connecting groove, and the clamping block is separated from the clamping groove after being extracted from the inboard of the clamping groove, and the fixture main body is pulled to the left side after the insertion block is extracted from the inside of the insertion groove, so that the fixture main body can be disassembled, the disassembly difficulty when the fixture main body is replaced is reduced, and the fixture replacement efficiency is improved.

[0015] 2, this kind of quick replacement fixture for machining center, after the fixture main body is disassembled, the rotary table is rotated, the corresponding fixture main body is selected, and the electric sliding table is started, and the electric sliding table works to make the U-shaped plate move to the right side, the connecting block and the upper fixture main body are moved during the movement of the U-shaped plate, the insertion block is inserted into the inside of the insertion groove, the insertion groove exerts the inward thrust on the clamping block during the insertion process of the insertion block, the clamping block is retracted and is popped out into the inside of the clamping groove under the action of the spring, the fixture replacement operation is completed, and the fixture replacement efficiency is further improved. DRAWINGS

[0016] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0017] Figure 1 It is the overall structure of the quick replacement fixture for machining center of the utility model and is a top view schematic diagram;

[0018] Figure 2 It is the rotary table structure schematic diagram of the quick replacement fixture for machining center of the utility model;

[0019] Figure 3 It is the machining table structure schematic diagram of the quick replacement fixture for machining center of the utility model;

[0020] Figure 4 It is the structure schematic diagram of the quick replacement fixture for machining center of the utility model.

[0021] In the diagram: 1. Machining platform; 2. Quick change mechanism; 3. Rotary shaft; 4. Turntable; 5. Slide groove; 6. Connecting block; 7. Insertion block; 8. Fixture body; 9. Magnetic sheet; 10. Connecting groove; 11. Locking block; 12. Limiting rod; 13. Spring; 14. Mounting groove; 15. Electric slide table; 16. U-shaped plate; 17. Slot; 18. Card slot; 19. Push rod. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figures 1-4 As shown, the quick-change fixture for machining centers of this utility model includes a machining platform 1, and a quick-change mechanism 2 is provided on the left side of the machining platform 1;

[0024] The quick-change mechanism 2 includes a turntable 4. During rotation, the turntable 4 allows the clamp body 8 to rotate, facilitating the selection and use of different clamps. The turntable 4 has multiple sets of annularly distributed sliding grooves 5 inside. Magnetic plates 9 are fixedly connected to the front and rear walls of the inner center of each groove 5. Connecting blocks 6 are slidably connected to the inner sides of each groove 5. The magnetic plates 9 determine the position of the connecting blocks 6, ensuring that the connecting blocks 6 are always fed into the inner side of the U-shaped plate 16 during the rotation of the turntable 4. The clamp body 8 is mounted on the top of each connecting block 6, away from the center of the turntable 4. Each side wall of the component is fixedly connected to an insert block 7. Each insert block 7 has a connecting groove 10 in the middle of the side wall near the magnetic sheet 9. The connecting groove 10 provides space for the installation of the locking block 11, the limiting rod 12 and the spring 13. Each connecting groove 10 has a limiting rod 12 fixedly connected in the middle of the inner wall. Each limiting rod 12 passes through and slides inside the locking block 11. Each locking block 11 has a spring 13 fixedly connected in the side wall away from the sliding groove 5. The other end of each spring 13 is fixedly connected in the middle of the inner wall of the connecting groove 10. The limiting rod 12 can restrict the spring 13 and the locking block 11.

[0025] Furthermore, a rotating shaft 3 is fixedly connected to the middle of the bottom wall of the turntable 4. The rotating shaft 3 is rotatably connected to the left end of the middle of the top wall of the processing platform 1. During the rotation of the rotating shaft 3, it can drive the turntable 4 and its top components to rotate.

[0026] Furthermore, a mounting groove 14 is provided in the middle of the top wall of the processing platform 1, and an electric slide 15 is provided in the bottom wall of the mounting groove 14. The operation of the electric slide 15 enables the U-shaped plate 16 to move left and right.

[0027] Furthermore, a U-shaped plate 16 is fixedly connected to the output end of the electric slide table 15. The U-shaped plate 16 is in clearance fit with the connecting block 6. During the movement of the U-shaped plate 16, it can move the connecting block 6 left and right, thereby moving the fixture body 8 left and right.

[0028] Further, the middle part of the right wall of the mounting groove 14 is provided with a slot 17, the middle part of the front and rear walls of the inner side of the slot 17 is provided with a clamping groove 18, the clamping groove 18 can limit the clamping block 11, so that the plug-in block 7 is fixed in the slot 17.

[0029] Further, the clamping groove 18 is in clearance fit with the clamping block 11, and the slot 17 is in clearance fit with the plug-in block 7. After the plug-in block 7 is fixed in the slot 17, the replacement operation of the clamp body 8 can be completed.

[0030] Further, the middle part of the clamping groove 18 is penetrated and slidably connected with a push rod 19, the push rod 19 is in the same horizontal line with the clamping block 11 on the inner side of the clamping groove 18, and the push rod 19 can push the clamping block 11 into the connecting groove 10.

[0031] Working principle: when the clamp needs to be replaced, the push rod 19 is pushed inward, and the push rod 19 extrudes the clamping block 11 inward during the pushing process, so that the clamping block 11 is retracted to one side of the connecting groove 10. After the clamping block 11 is separated from the clamping groove 18 during the retraction process, the clamp body 8 is pulled to the left side, so that the plug-in block 7 is pulled out from the slot 17. The clamp body 8 can be disassembled, which reduces the disassembly difficulty of the clamp body 8 during replacement. After the clamp body 8 is disassembled, the rotating disc 4 is rotated, the corresponding clamp body 8 is selected, and the electric sliding table 15 is started. The U-shaped plate 16 moves to the right side under the action of the electric sliding table 15. The connecting block 6 and the upper clamp body 8 are moved during the movement of the U-shaped plate 16, so that the plug-in block 7 is inserted into the slot 17. During the insertion process of the plug-in block 7, the slot 17 applies an inward pushing force to the clamping block 11, so that it is retracted and pops out into the clamping groove 18 under the action of the spring 13. The clamp replacement operation is completed.

[0032] Finally, it should be pointed out that: in the description of the utility model, it should be pointed out that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation of the utility model.

[0033] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A quick-change fixture for a machining center, comprising a machining platform (1), characterized in that: A quick-change mechanism (2) is provided on the left side of the processing platform (1); The quick-change mechanism (2) includes a turntable (4), which has multiple sets of annularly distributed sliding grooves (5) inside. Magnetic plates (9) are fixedly connected to the front and rear walls of the inner middle of the sliding grooves (5). Connecting blocks (6) are slidably connected to the inner side of the sliding grooves (5). Clamp bodies (8) are provided on the top of the connecting blocks (6). Insert blocks (7) are fixedly connected to the side wall of the connecting blocks (6) away from the middle of the turntable (4). Connecting grooves (10) are provided in the middle of the side wall of the insert blocks (7) near the magnetic plates (9). Limiting rods (12) are fixedly connected to the middle of the inner wall of the connecting grooves (10). The limiting rods (12) pass through and are slidably connected to the inner side of the locking block (11). Springs (13) are fixedly connected to the side wall of the locking block (11) away from the sliding grooves (5). The other end of the springs (13) is fixedly connected to the middle of the inner wall of the connecting grooves (10).

2. The quick-change fixture for a machining center according to claim 1, characterized in that, A rotating shaft (3) is fixedly connected to the middle of the bottom wall of the turntable (4), and the rotating shaft (3) is rotatably connected to the left end of the middle of the top wall of the processing platform (1).

3. The quick-change fixture for a machining center according to claim 1, characterized in that, The processing platform (1) has an installation groove (14) in the middle of its top wall, and an electric slide (15) is provided on the bottom wall of the installation groove (14).

4. The quick-change fixture for a machining center according to claim 3, characterized in that, The output end of the electric slide (15) is fixedly connected to a U-shaped plate (16), and the U-shaped plate (16) is clearance-fitted with the connecting block (6).

5. The quick-change fixture for a machining center according to claim 3, characterized in that, The mounting groove (14) has a slot (17) in the middle of the right wall, and the slot (17) has a card slot (18) in the middle of the front and rear walls inside.

6. The quick-change fixture for a machining center according to claim 5, characterized in that, The slots (18) are all clearance-fitted with the blocks (11), and the slots (17) are all clearance-fitted with the inserts (7).

7. The quick-change fixture for a machining center according to claim 5, characterized in that, Each of the card slots (18) has a push rod (19) that runs through and slides through the middle of the slot, and the push rod (19) is at the same horizontal line as the card block (11) inside the card slot (18).

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