Workpiece clamp for five-axis numerical control grinding machine

Abstract

The workpiece clamp for the five-axis numerical control grinding machine comprises a working table, the outer side of the working table is fixedly connected with a plurality of installation bases which are evenly distributed, the top of the working table is connected with two sliding bases which are symmetrically distributed in a sliding mode, clamping blocks are connected into the sliding bases in a sliding and sleeved mode, the clamping blocks are connected with the sliding bases in a sliding mode, and the clamping blocks are connected with the sliding bases in a sliding mode. The left end and the right end of the workbench are fixedly connected with driving motors. Through the design of the driving motor, the output end of the driving motor can drive the threaded rod to rotate, threaded movement of the connecting block can be achieved, the connecting block can drive the sliding base and the clamping block to move, a workpiece can be clamped and positioned in the horizontal direction through movement of the clamping block, and after positioning in the horizontal direction is completed, the workpiece can be clamped and positioned. The pressing cylinder can be pressed downwards by starting the rotating motor, the workpiece can be pressed downwards and positioned through the pressing cylinder, the workpiece can be fixed in the horizontal direction and the vertical direction, and the workpiece clamping stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece fixture technical field, concretely is a workpiece fixture for five -axis numerical control grinding machine. BACKGROUND

[0002] Five -axis numerical control grinding machine is a kind of numerical control grinding machine with five coordinate axes, it can carry out multi-axis linkage movement in different directions, realizes the high-precision processing to complex surface.Five -axis numerical control grinding machine is suitable for the processing of high-difficulty, high-precision parts, such as automobile engine camshaft, aerospace parts etc.This grinding machine has the advantages such as high processing efficiency, high precision, good stability, can satisfy the processing needs of high-end manufacturing industry.In the use process of five -axis numerical control grinding machine, workpiece is fixed by fixture.

[0003] In prior art, during workpiece clamping and positioning, workpiece positioning is usually carried out in the way of horizontal direct clamping, workpiece lacks vertical direction limiting, workpiece positioning stability is insufficient, which affects subsequent workpiece processing effect.Therefore, improvement is needed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a workpiece fixture for five -axis numerical control grinding machine, solve the problem of insufficient workpiece clamping and positioning effect.

[0005] To achieve the above object, the utility model provides the following technical scheme: a workpiece fixture for five -axis numerical control grinding machine, including workbench, the outside of workbench is fixedly connected with a plurality of mounting seats that are evenly distributed, the top of workbench is slidably connected with two symmetrical slide blocks, the inside of slide block is slidably sleeved with clamping block, clamping block is slidably connected with slide block, the left and right ends of workbench are fixedly connected with driving motor, the output end of driving motor is rotatably connected with workbench, the outside of driving motor output end is fixedly connected with threaded rod, threaded rod is rotatably connected with workbench through bearing, the outside of threaded rod is connected with connecting block through screw thread, connecting block is slidably connected with workbench, connecting block is fixedly connected with slide block, the upper end of slide block is hingedly connected with support, the inside of support is hingedly connected with pressing cylinder, the support is provided with pressing mechanism, clamping block is provided with connecting mechanism.

[0006] Preferably, the bottom of connecting block is fixedly connected with sliding block, and the sliding block is slidably connected with the workbench.Through the design of sliding block, the movement of connecting block can be guided.

[0007] Preferably, the pressing mechanism comprises a rotating motor, the outer side of the sliding base is fixedly connected with the rotating motor, the outer side of the output end of the rotating motor is fixedly connected with a bevel gear one, the outer side of the bevel gear one is engaged with a bevel gear two, the bevel gear two and the bevel gear one are rotationally connected with the sliding base, the inner side of the bevel gear two is fixedly sleeved with a screw rod, the screw rod is rotationally connected with the sliding base through a bearing, the outer side of the screw rod is threadedly connected with a top block, the top block is slidably connected with the sliding base, the upper end of the top block is slidably connected with an inclined block, and the inclined block is fixedly connected with the support. Through the design of the pressing mechanism, the workpiece can be conveniently positioned by pressing down.

[0008] Preferably, the outer side of the top block is fixedly connected with a guide block, and the guide block is slidably connected with the sliding base. Through the design of the guide block, the movement of the top block can be guided.

[0009] Preferably, the connecting mechanism comprises a fixed rod, the inner side of the sliding base is fixedly connected with the fixed rod, the outer side of the fixed rod is provided with a spring, the outer side of the fixed rod is slidably sleeved with a supporting block, the supporting block is slidably connected with the sliding base, the inner side of the supporting block is movably sleeved with a clamping ball, the clamping ball is movably connected with the sliding base, the outer side of the clamping ball is movably sleeved with an insertion block, the insertion block is slidably connected with the sliding base, and the insertion block is fixedly connected with the clamping block. Through the design of the connecting mechanism, the clamping block can be conveniently disassembled.

[0010] Preferably, one end of the spring is fixedly connected with the sliding base, and the other end of the spring is fixedly connected with the supporting block. Through the design of the spring, the acting force of the spring can act on the supporting block.

[0011] Preferably, the inner side of the insertion block is provided with a groove, and the inner side of the groove is movably sleeved with a clamping ball. Through the design of the groove, the clamping ball can roll in the insertion block.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、Through the action of the driving motor, the output end of the driving motor can drive the threaded rod to rotate, the threaded motion of the connecting block can be realized, the connecting block can drive the sliding base and the clamping block to move, the workpiece can be horizontally clamped and positioned through the movement of the clamping block, after the horizontal positioning is completed, the rotating motor is started to realize the pressing of the cylinder, the workpiece can be positioned by pressing, the workpiece can be fixed in the horizontal and vertical directions, and the workpiece clamping stability is improved.

[0014] 2, the utility model discloses the plug -in of plug -in block and sliding seat can be preliminary positioned to the clamping block, and under the plug -in cooperation of ball and plug -in block, the limit of plug -in block can be carried out, realize the connection fixed of plug -in block and sliding seat, reach the purpose that the clamping block and sliding seat are connected fixed, and the clamping block can be extracted from the inside of sliding seat through horizontal movement clamping block, and clamping block dismantles conveniently, when positioning the workpiece of different shapes, the replacement of clamping block can be carried out, and it is convenient to adapt to the positioning work of different workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure perspective drawing of the utility model;

[0016] Figure 2 It is the partial structure perspective sectional view of the utility model Figure 1 ;

[0017] Figure 3 It is the sliding seat front view sectional view of the utility model Figure 2 ;

[0018] Figure 4 It is the clamping block planar sectional view of the utility model Figure 1 .

[0019] In the drawing: 1, workbench;2, mounting seat;3, sliding seat;4, clamping block;5, drive motor;6, threaded rod;7, connecting block;8, pressing mechanism;9, connecting mechanism;10, sliding block;11, support;12, pressing cylinder;81, rotation motor;82, bevel gear one;83, bevel gear two;84, screw;85, top block;86, guide block;87, inclined block;91, fixed rod;92, spring;93, support block;94, ball;95, plug -in block;96, recess. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0021] Please refer to Figure 1 , Figure 2A workpiece clamp for a five-axis numerical control grinding machine, comprising a workbench 1, a plurality of mounting seats 2 are fixedly connected to the outer side of the workbench 1 in a uniform distribution, two symmetrical slide blocks 3 are slidingly connected to the top of the workbench 1, a clamping block 4 is slidingly sleeved in the slide block 3, the clamping block 4 is slidingly connected with the slide block 3, a drive motor 5 is fixedly connected to the left and right ends of the workbench 1, the output end of the drive motor 5 is rotatably connected with the workbench 1, a threaded rod 6 is fixedly connected to the outer side of the output end of the drive motor 5 and rotatably connected with the workbench 1 through a bearing, a connecting block 7 is threadedly connected to the outer side of the threaded rod 6 and slidingly connected with the workbench 1, the connecting block 7 is fixedly connected with the slide block 3, a sliding block 10 is fixedly connected to the bottom of the connecting block 7 and slidingly connected with the workbench 1, the sliding movement of the connecting block 7 is guided through the design of the sliding block 10, a support 11 is hingedly connected to the upper end of the slide block 3, a pressing cylinder 12 is hingedly connected to the inner side of the support 11, a pressing mechanism 8 is arranged on the support 11, and a connecting mechanism 9 is arranged on the clamping block 4.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 The pressing mechanism 8 comprises a rotating motor 81, the outer side of the slide block 3 is fixedly connected with the rotating motor 81, the outer side of the output end of the rotating motor 81 is fixedly connected with a bevel gear one 82, the outer side of the bevel gear one 82 is engaged with a bevel gear two 83, the bevel gear two 83 and the bevel gear one 82 are rotatably connected with the slide block 3, a screw rod 84 is fixedly sleeved in the inner side of the bevel gear two 83 and rotatably connected with the slide block 3 through a bearing, a top block 85 is threadedly connected to the outer side of the screw rod 84 and slidingly connected with the slide block 3, a guide block 86 is fixedly connected to the outer side of the top block 85 and slidingly connected with the slide block 3, the movement of the top block 85 is guided through the design of the guide block 86, an inclined block 87 is slidingly connected to the upper end of the top block 85 and fixedly connected with the support 11, the workpiece is conveniently positioned by pressing through the design of the pressing mechanism 8.

[0023] Please refer to Figure 1 、 Figure 4The connecting mechanism 9 comprises a fixed rod 91, the inside of the sliding block 3 is fixedly connected with the fixed rod 91, the outer side of the fixed rod 91 is provided with a spring 92, one end of the spring 92 is fixedly connected with the sliding block 3, the other end of the spring 92 is fixedly connected with a supporting block 93, the spring 92 is designed so that the force of the spring 92 can act on the supporting block 93, the outer side of the fixed rod 91 is slidably sleeved with the supporting block 93, the supporting block 93 is slidably connected with the sliding block 3, the inside of the supporting block 93 is movably sleeved with a clamping ball 94, the clamping ball 94 is movably connected with the sliding block 3, the outer side of the clamping ball 94 is movably sleeved with an insertion block 95, the inside of the insertion block 95 is provided with a groove 96, the inside of the groove 96 is movably sleeved with the clamping ball 94, the groove 96 is designed so that the clamping ball 94 can roll in the insertion block 95, the insertion block 95 is slidably connected with the sliding block 3, the insertion block 95 is fixedly connected with the clamping block 4, and the connecting mechanism 9 is designed so that the clamping block 4 is convenient to disassemble.

[0024] The specific implementation process of the utility model is as follows: when using, when needing to position workpieces, first, the workpieces are placed on the workbench 1, then the driving motor 5 is started, the output end of the driving motor 5 drives the threaded rod 6 to rotate, the connecting block 7 does threaded motion, the connecting block 7 drives the sliding block 10 to slide along the workbench 1, at the same time, the sliding block 3 drives the clamping block 4 to move so that the clamping block 4 contacts the workpiece, and the workpiece can be clamped and positioned, then the rotating motor 81 is started, the rotating motor 81 drives the bevel gear one 82 to rotate, the bevel gear one 82 drives the bevel gear two 83 to rotate, the bevel gear two 83 drives the screw rod 84 to rotate, the top block 85 does threaded motion, the top block 85 drives the guide block 86 to slide along the sliding block 3, at the same time, the top block 85 slides along the inclined block 87 and can extrude and push the bracket 11 to deflect, and then the pressing cylinder 12 can press down the workpiece, the workpiece can be fixed in the horizontal and vertical directions, and the workpiece clamping stability is improved.

[0025] When needing to disassemble the clamping block 4, the clamping block 4 is directly pulled outward, the clamping block 4 drives the insertion block 95 to move horizontally, the insertion block 95 slides in the sliding block 3, the insertion block 95 relatively slides with the clamping ball 94, the arc surface of the groove 96 in the insertion block 95 can extrude and push the clamping ball 94 to move, the clamping ball 94 drives the supporting block 93 to slide along the fixed rod 91 and extrude the spring 92, the clamping ball 94 can be separated from the insertion block 95, then the insertion block 95 can be pulled out from the inside of the sliding block 3, and the clamping block 4 can be disassembled, the clamping block 4 is convenient to disassemble, when positioning workpieces of different shapes, the clamping block 4 can be replaced, and the positioning work of different workpieces is facilitated.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece fixture for a five-axis CNC grinding machine, comprising a worktable (1), characterized in that: The workbench (1) has multiple evenly distributed mounting seats (2) fixedly connected to its outer side. The top of the workbench (1) has two symmetrically distributed slide blocks (3) slidably connected to it. The slide blocks (3) have clamping blocks (4) slidably fitted inside them. The clamping blocks (4) are slidably connected to the slide blocks (3). Both the left and right ends of the workbench (1) are fixedly connected to drive motors (5). The output ends of the drive motors (5) are rotatably connected to the workbench (1). The output ends of the drive motors (5) are fixedly connected to screws on their outer sides. The threaded rod (6) is rotatably connected to the worktable (1) via a bearing. A connecting block (7) is threadedly connected to the outer side of the threaded rod (6). The connecting block (7) is slidably connected to the worktable (1). The connecting block (7) is fixedly connected to the slide (3). A bracket (11) is hinged to the upper end of the slide (3). A pressure cylinder (12) is hinged to the inner side of the bracket (11). A pressing mechanism (8) is provided on the bracket (11). A connecting mechanism (9) is provided on the clamping block (4).

2. The workpiece fixture for a five-axis CNC grinding machine according to claim 1, characterized in that: The bottom of the connecting block (7) is fixedly connected to a slider (10), and the slider (10) is slidably connected to the worktable (1).

3. The workpiece fixture for a five-axis CNC grinding machine according to claim 1, characterized in that: The clamping mechanism (8) includes a rotary motor (81). The rotary motor (81) is fixedly connected to the outside of the slide (3). A bevel gear (82) is fixedly connected to the outside of the output end of the rotary motor (81). A bevel gear (83) meshes with the outside of the bevel gear (82). Both the bevel gear (83) and the bevel gear (82) are rotatably connected to the slide (3). A screw (84) is fixedly sleeved inside the bevel gear (83). The screw (84) is rotatably connected to the slide (3) through a bearing. A top block (85) is threadedly connected to the outside of the screw (84). The top block (85) is slidably connected to the slide (3). An inclined block (87) is slidably connected to the upper end of the top block (85). The inclined block (87) is fixedly connected to the bracket (11).

4. A workpiece fixture for a five-axis CNC grinding machine according to claim 3, characterized in that: A guide block (86) is fixedly connected to the outside of the top block (85), and the guide block (86) is slidably connected to the slide (3).

5. A workpiece fixture for a five-axis CNC grinding machine according to claim 1, characterized in that: The connecting mechanism (9) includes a fixed rod (91), the fixed rod (91) is fixedly connected inside the slide (3), a spring (92) is provided on the outside of the fixed rod (91), a support block (93) is slidably sleeved on the outside of the fixed rod (91), the support block (93) is slidably connected to the slide (3), a retaining ball (94) is movably sleeved inside the support block (93), the retaining ball (94) is movably connected to the slide (3), an insert (95) is movably sleeved on the outside of the retaining ball (94), the insert (95) is slidably connected to the slide (3), and the insert (95) is fixedly connected to the clamping block (4).

6. A workpiece fixture for a five-axis CNC grinding machine according to claim 5, characterized in that: One end of the spring (92) is fixedly connected to the slide (3), and the other end of the spring (92) is fixedly connected to the support block (93).

7. A workpiece fixture for a five-axis CNC grinding machine according to claim 5, characterized in that: The insert (95) has a groove (96) inside, and a retaining ball (94) is movably fitted inside the groove (96).

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