Tool clamp

Abstract

The utility model is suitable for the technical field of work fixtures, and provides a work fixture. A placement table; the movable groove is formed in the middle of the top of the placement table; the workbench is movably mounted at the top of the placement table and covers and shields the movable groove; the sliding grooves are formed in the surface of the workbench in a circumferential array mode. The clamping structures are arranged in the movable groove in a circumferential array mode and penetrate through the sliding groove to clamp a workpiece on the workbench. Compared with the prior art, the clamping device has the beneficial effects that when the clamping device is used, the clamping structure is arranged, so that a workpiece can be clamped at multiple angles and multiple directions, the clamping effect is better, and meanwhile, when the clamping structure moves, the shielding structure is driven to rotate, so that the workpiece is prevented from being damaged when being machined. The problems that when cleaning is carried out, generated chippings fall into a movable groove through a sliding groove, a containing table needs to be disassembled in the cleaning process, and the cleaning difficulty is increased are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures, and in particular relates to a tooling fixture. Background Art

[0002] A fixture is a process device used to quickly fasten the workpiece during processing so that the machine tool, tool, and workpiece maintain the correct relative position.

[0003] In a fixture with application number CN202321524365.5, a servo motor drives a rotating rod to rotate, the rotating rod drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear to rotate, the second bevel gear drives a lead screw to rotate, the lead screw drives a wire drum to move, the wire drum drives a moving plate to move toward each other, and the moving plate drives a limit pad to move toward each other, so that the limit pad fits the outer surface of the workpiece, and the workpiece is fixed at multiple angles to avoid the phenomenon that the workpiece is not firmly fixed due to a single fixed angle. By setting the above structure, it has the advantage of better fixing effect, solves the problem of poor fixing effect of existing fixtures, and is conducive to the use of the device;

[0004] Although the above patent can fix the workpiece at multiple angles, it still has certain defects. Since a movable groove is opened on the surface of the box, although it facilitates the movement of the movable plate, when the workpiece is processed, the debris generated by the processing will fall into the movable groove, making the subsequent cleaning more troublesome. In addition, the debris accumulates in the movable groove, which will cause wear to structures such as the screw rod, resulting in a reduced service life.

[0005] Therefore, how to provide a tooling fixture is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a tooling fixture, aiming to solve the problems mentioned in the background technology.

[0007] The utility model is implemented as follows: a tool fixture comprises:

[0008] Placement table;

[0009] A movable groove, which is opened in the middle of the top of the placement table;

[0010] A workbench, which is movably mounted on the top of the placement table and covers the movable slot;

[0011] A slide groove, wherein a circular array of the slide grooves is provided on the surface of the workbench;

[0012] A clamping structure, wherein a circumferential array of the clamping structures is placed in the movable groove and penetrates the slide groove to clamp the workpiece on the workbench;

[0013] The shielding structure is symmetrically arranged on the workbench and rotates along with the movement of the clamping structure.

[0014] Preferably, lifting rods are symmetrically installed on the surface of the clamping structure, the top of the lifting rods passes through the surface of the workbench, through holes are opened on the surface of the lifting rods, and a positioning structure is provided in a circular array on the surface of the workbench, which is movably connected with the lifting rods, and the spacing value of the lifting rods is greater than the maximum spacing value of the shielding structure.

[0015] Preferably, the clamping structure includes a driving gear, a base and a top block, the driving gear is movably installed in the middle of the bottom of the movable groove, the base circular array is movably placed in the movable groove, a ball screw is movably installed in the middle of the base, the inner end of the ball screw passes through the surface of the base and is fixedly installed with a driven gear, the driven gear is meshed and transmission-connected with the driving gear, and the top block is movably installed on the surface of the ball screw and passes through the surface of the slide groove.

[0016] Preferably, the shielding structure includes a positioning shaft, a rotating baffle and a rotating groove. The rotating groove circular array is symmetrically opened on the workbench and symmetrically arranged with the slide groove as the center. The positioning shaft array is installed inside the rotating groove. The rotating baffle is movably sleeved on the surface of the positioning shaft. The inner end of the rotating baffle is provided with an opening, and the upper end of the clamping structure is arranged in the opening.

[0017] Preferably, the edge of the top of the slide groove is arranged to be in an arc shape, and the width of the shielding structure is greater than the radius of the slide groove.

[0018] Preferably, the positioning structure includes a spring, a positioning block and an insertion rod. The positioning blocks are symmetrically installed in a circular array on the top of the workbench. The middle part of the positioning block is movably inserted with a guide rod. The insertion rod is fixedly installed on the outer end of the guide rod. The spring is movably sleeved on the surface of the guide rod and fixedly connected to the surface of the insertion rod and the positioning block. A pull block is fixedly installed in the middle of the outer end of the insertion rod.

[0019] Preferably, when the base rises, the driven gear is not meshed and transmission-connected with the driving gear.

[0020] Compared with the prior art, the beneficial effect of the utility model is that when in use, by setting up a clamping structure, the workpiece can be clamped at multiple angles and in multiple directions, thereby achieving a better clamping effect. At the same time, when the clamping structure moves, it will drive the shielding structure to rotate, thereby preventing the debris generated during the processing of the workpiece from falling into the movable groove through the slide groove, resulting in the need to disassemble the placement table during cleaning, which increases the difficulty of cleaning.

[0021] At the same time, by arranging lifting rods at both ends of the clamping structure, the lower end of the clamping structure can be lifted to separate it from the power source and fixed with a positioning structure, thereby preventing the top blocks in several other redundant clamping directions from being raised and contacting the surface of the unclampable end of the workpiece, thereby causing damage to the workpiece and the power source being unable to continue to rotate, resulting in damage to the power source or the clamping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of the overall appearance structure of a fixture provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of a top cross-sectional structure of a fixture provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a right side cross-sectional structure of a tooling fixture provided in an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of a front cross-sectional structure of a fixture provided by an embodiment of the utility model;

[0027] Figure 5 The embodiment of the utility model provides Figure 1 A schematic diagram of the enlarged structure of part A;

[0028] Figure 6 The embodiment of the utility model provides Figure 2 A schematic diagram of the enlarged structure of part B;

[0029] Figure 7 The embodiment of the utility model provides Figure 3 Schematic diagram of the enlarged structure of part C.

[0030] In the figure: 1-placing table, 2-working table, 3-movable groove, 4-slide groove, 5-positioning shaft, 6-rotating baffle, 7-opening, 8-base, 9-ball screw, 10-top block, 11-driven gear, 12-driving gear, 13-lifting rod, 14-through hole, 15-positioning block, 16-guide rod, 17-spring, 18-insertion rod, 19-pull block, 20-rotating groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The figure is a schematic diagram of the structure of a fixture provided by an embodiment of the utility model, including:

[0034] Placement table 1;

[0035] A movable groove 3, wherein the movable groove 3 is opened in the middle of the top of the placement table 1;

[0036] A workbench 2, wherein the workbench 2 is movably mounted on the top of the placement table 1 and covers and shields the movable slot 3;

[0037] A chute 4, wherein a circumferential array of the chute 4 is provided on the surface of the workbench 2;

[0038] A clamping structure, wherein the clamping structure is placed in a circular array in the movable groove 3 and passes through the slide groove 4 to clamp the workpiece on the workbench 2;

[0039] The shielding structure is symmetrically arranged in the workbench 2 and rotates along with the movement of the clamping structure.

[0040] In the embodiment of the utility model, when in use, the clamping structure in the movable groove 3 is activated, thereby moving along the slide groove 4, and then clamping the workpiece on the workbench 2 to prevent movement;

[0041] By providing a shielding structure, it is possible to prevent the debris generated during processing from entering the movable groove 3 through the slide groove 4, thereby increasing the difficulty of cleaning and affecting the service life of the clamping structure.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, as a preferred embodiment of the utility model, the surface of the clamping structure is symmetrically installed with lifting rods 13, the top of the lifting rods 13 passes through the surface of the workbench 2, the surface of the lifting rods 13 is opened with through holes 14, the surface of the workbench 2 is provided with a circular array of positioning structures, and are movably connected with the lifting rods 13, and the spacing value of the lifting rods 13 is greater than the maximum spacing value of the shielding structure.

[0043] In the embodiment of the utility model, when in use, the lifting rod 13 lifts the base 8 in the movable groove 3, so that the driven gear 11 on its surface is separated from the driving gear 12, and the through hole 14 on the surface of the pull rod 13 is aligned with the position of the insertion rod 18;

[0044] The lifting rod 13 is provided to facilitate lifting the clamping structure and reduce the number and angle of contacts.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment of the utility model, the clamping structure includes a driving gear 12, a base 8 and a top block 10, the driving gear 12 is movably installed in the middle of the bottom of the movable groove 3, the base 8 is movably placed in the movable groove 3 in a circular array, a ball screw 9 is movably installed in the middle of the base 8, the inner end of the ball screw 9 passes through the surface of the base 8 and is fixedly installed with a driven gear 11, the driven gear 11 is meshed and transmission-connected with the driving gear 12, and the top block 10 is movably installed on the surface of the ball screw 9 and passes through the surface of the slide groove 4.

[0046] In the embodiment of the utility model, when in use, the driving gear 12 is started, so that the driven gear 11 rotates, and then the ball screw 9 in the base 8 rotates, and then the top block 10 moves along the slide groove 4 in the workbench 2 and the movable groove 3, thereby clamping the workpiece on the workbench 2 and driving the shielding structure to move;

[0047] By providing the clamping structure, it is convenient to clamp and fix the workpiece on the workbench 2 to avoid movement.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, as a preferred embodiment of the utility model, the shielding structure includes a positioning shaft 5, a rotating baffle 6 and a rotating groove 20. The rotating groove 20 is symmetrically arranged in a circular array on the workbench 2 and is symmetrically arranged with the slide groove 4 as the center. The positioning shaft 5 array is installed inside the rotating groove 20. The rotating baffle 6 is movably sleeved on the surface of the positioning shaft 5. The inner end of the rotating baffle 6 is provided with an opening 7, and the upper end of the clamping structure is arranged in the opening 7.

[0049] In the embodiment of the utility model, when the top block 10 moves, it will drive the rotating baffle 6 in the rotating groove 20 to rotate with the positioning shaft 5 as the rotation center, so as to block the slide groove 4 in real time;

[0050] By providing a shielding structure, it is prevented that the debris falling from the surface of the workpiece during processing falls into the movable groove 3 through the slide groove 4, resulting in the need to disassemble the placement table 1 for cleaning.

[0051] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present utility model, the edge of the top of the slide groove 4 is set to be an arc shape, and the width of the shielding structure is greater than the radius of the slide groove 4.

[0052] In the embodiment of the utility model, when in use, the edge of the top of the chute 4 is set to an arc shape, so that the debris remaining on the surface is cleaned, and the width of the shielding structure is made larger than the radius of the chute 4, so that the baffle seals the chute 4.

[0053] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, as a preferred embodiment of the utility model, the positioning structure includes a spring 17, a positioning block 15 and an insertion rod 18. The positioning blocks 15 are symmetrically installed in a circular array on the top of the workbench 2. The middle part of the positioning block 15 is movably inserted with a guide rod 16, and the insertion rod 18 is fixedly installed on the outer end of the guide rod 16. The spring 17 is movably sleeved on the surface of the guide rod 16 and is fixedly connected to the surface of the insertion rod 18 and the positioning block 15. A pull block 19 is fixedly installed in the middle of the outer end of the insertion rod 18.

[0054] In the embodiment of the utility model, when the through hole 14 on the surface of the pull rod 13 is aligned with the position of the insertion rod 18, the insertion rod 18 is inserted into the through hole 14 from the outside to the inside under the action of the spring 17 and the guide rod 16 on the positioning block 15, and the lifting rod 13 is fixed;

[0055] By providing the positioning structure, it is avoided that the top block at the non-clamping end increases the contact with the workpiece surface, which causes the driving gear 12 to be unable to continue to rotate.

[0056] like Figure 4 As shown, as a preferred embodiment of the present utility model, when the base 8 rises, the driven gear 11 is not meshed and transmission-connected with the driving gear 12.

[0057] In the embodiment of the utility model, when in use, by raising the base 8, the driven gear 11 is not meshed with the driving gear 12 for transmission connection, so that the rotation of the clamping structure at different positions can be controlled.

[0058] The above embodiment of the utility model provides a fixture, when in use, the driving gear 12 is started, so that the driven gear 11 rotates, and then the ball screw 9 in the base 8 rotates, and then the top block 10 is driven to move along the slide groove 4 in the workbench 2 and the movable groove 3, so as to clamp the workpiece on the workbench 2;

[0059] When the top block 10 moves, the rotating baffle 6 in the rotating groove 20 will be driven to rotate with the positioning shaft 5 as the rotation center, so as to block the slide groove 4 in real time, thereby preventing the debris falling from the surface of the workpiece from falling into the movable groove 3 through the slide groove 4 during processing, resulting in the need to disassemble the placement table 1 for cleaning;

[0060] At the same time, when there are only two or three clamping ends on the workpiece surface, in order to prevent the top blocks 10 in the other redundant clamping directions from increasing their contact with the workpiece surface, causing the driving gear 12 to be unable to continue rotating, the base 8 in the movable groove 3 can be lifted by the lifting rod 13, so that the driven gear 11 on its surface is separated from the driving gear 12, and the through hole 14 on the surface of the pull rod 13 is aligned with the position of the insertion rod 18;

[0061] When aligned, the spring 17 and the guide rod 16 on the positioning block 15 will cause the insertion rod 18 to move from the outside to the inside and be inserted into the through hole 14 to fix the lifting rod 13, thereby preventing the top block at the non-clamping end from increasing its contact with the workpiece surface, causing the driving gear 12 to be unable to continue to rotate.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture, characterized in that: include; Placement table; A movable groove, which is opened in the middle of the top of the placement table; A workbench, which is movably mounted on the top of the placement table and covers the movable slot; A slide groove, wherein a circular array of the slide grooves is provided on the surface of the workbench; A clamping structure, wherein a circumferential array of the clamping structures is placed in the movable groove and penetrates the slide groove to clamp the workpiece on the workbench; The shielding structure is symmetrically arranged on the workbench and rotates along with the movement of the clamping structure.

2. A fixture according to claim 1, characterized in that: Lifting rods are symmetrically installed on the surface of the clamping structure, the top of the lifting rods passes through the surface of the workbench, through holes are opened on the surface of the lifting rods, and positioning structures are provided in a circular array on the surface of the workbench and movably connected with the lifting rods. The spacing value of the lifting rods is greater than the maximum spacing value of the shielding structure.

3. A fixture according to claim 1, characterized in that: The clamping structure includes a driving gear, a base and a top block. The driving gear is movably installed in the middle of the bottom of the movable groove. The base circular array is movably placed in the movable groove. A ball screw is movably installed in the middle of the base. The inner end of the ball screw passes through the surface of the base and a driven gear is fixedly installed. The driven gear is meshed and connected with the driving gear. The top block is movably installed on the surface of the ball screw and passes through the surface of the slide groove.

4. A fixture according to claim 1, characterized in that: The shielding structure includes a positioning shaft, a rotating baffle and a rotating groove. The rotating groove circular array is symmetrically opened on the workbench and symmetrically arranged with the slide groove as the center. The positioning shaft array is installed inside the rotating groove. The rotating baffle is movably sleeved on the surface of the positioning shaft. The inner end of the rotating baffle is provided with an opening, and the upper end of the clamping structure is arranged in the opening.

5. A fixture according to claim 1, characterized in that: The edge of the top of the slide groove is arranged to be in an arc shape, and the width of the shielding structure is greater than the radius of the slide groove.

6. A fixture according to claim 2, characterized in that: The positioning structure includes a spring, a positioning block and an insertion rod. The positioning blocks are symmetrically installed in a circular array on the top of the workbench. The middle of the positioning block is movably inserted with a guide rod. The insertion rod is fixedly installed on the outer end of the guide rod. The spring is movably sleeved on the surface of the guide rod and fixedly connected to the surfaces of the insertion rod and the positioning block. A pulling block is fixedly installed in the middle of the outer end of the insertion rod.

7. A fixture according to claim 3, characterized in that: When the base rises, the driven gear is not meshed and transmission-connected with the driving gear.

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