CN210938765U

CN210938765U - Limiting and fixing device for numerically-controlled grinding machine

Info

Publication number: CN210938765U
Application number: CN201921628889.2U
Authority: CN
Inventors: 张金凤
Original assignee: Kunshan Yicai Precision Machinery Co Ltd
Current assignee: Kunshan Yicai Precision Machinery Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-07
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a spacing fixing device for numerically control grinder, including fixing device body, bearing and servo motor, bearing and main shaft interconnect are passed through at the middle part of fixing device body, and the lower extreme of main shaft is connected with servo motor, the spacing groove is all installed to the inner wall both sides of fixing device body, and the inside of spacing groove is provided with the fixture block, the connecting block is installed to the up end of activity strip, and the upper end of connecting block is connected with the centre gripping arm, the surface of fixing device body and centre gripping arm all is provided with the cushion, and the stopper is all installed to the surperficial both sides of centre gripping arm, the outside cover of stopper is equipped with the gag lever post. This spacing fixing device for numerically control grinder can the fixed work piece of the different specifications of centre gripping to convenient operation, thereby can polish the work piece of different specifications, and can carry out the secondary to the work piece and fix, prevent that the work piece from taking place to drop when polishing.

Description

Limiting and fixing device for numerically-controlled grinding machine

Technical Field

The utility model relates to a fixed equipment technical field for the numerically control grinder specifically is a spacing fixing device for numerically control grinder.

Background

The numerically controlled grinder is a machine tool for grinding and polishing the surface of a workpiece, can grind the rough surface of the workpiece smoothly, needs to fix the workpiece on the numerically controlled grinder during grinding, and needs to prevent the workpiece from falling or even falling off during grinding.

However, the conventional fixing device for the numerically controlled grinder has the following problems in the use process:

1. workpieces of different specifications are inconvenient to be fixedly clamped, so that the machining types of the workpieces are simplified, and the workpieces of different specifications are inconvenient to be polished;

2. the workpiece cannot be fixed for the second time, so that the workpiece is easy to drop when being polished, and polishing deviation of the workpiece is caused.

In order to solve the problems, innovative design is urgently needed on the basis of the original fixing equipment for the numerically controlled grinder.

Disclosure of Invention

An object of the utility model is to provide a spacing fixing device for numerically control grinder to solve above-mentioned background art and carry out fixed centre gripping to the work piece of different specifications that the fixing device for numerically control grinder that has appeared is inconvenient, lead to the processing type simplification to the work piece, inconvenient polishing the work piece of different specifications, can not carry out the secondary to the work piece and fix, make the work piece take place the phenomenon that drops easily when polishing, cause the problem to the deviation of polishing of work piece.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spacing fixing device for numerically control grinder, includes fixing device body, bearing and servo motor, bearing and main shaft interconnect are passed through at the middle part of fixing device body, and the lower extreme of main shaft is connected with servo motor to the pot head of main shaft is equipped with the gear, the spacing groove is all installed to the inner wall both sides of fixing device body, and the inside of spacing groove is provided with the fixture block to the end connection of fixture block has movable strip, the connecting block is installed to the up end of activity strip, and the upper end of connecting block is connected with the centre gripping arm, and the centre gripping arm passes through bracing piece and connecting block interconnect, the surface of fixing device body and centre gripping arm all is provided with the cushion, and the stopper is all installed to the surperficial both sides of centre gripping arm, the outside cover of stopper is equipped with the gag lever post, and.

Preferably, the overlooking cross section of the fixture block is of a T-shaped structure, the fixture block and the limiting groove form a sliding installation structure, and the outer wall of the fixture block is attached to the inner wall of the limiting groove.

Preferably, the outer side of the movable strip is provided with a saw-toothed structure, the movable strip is in meshed connection with the gear, and the 2 movable strips are arranged in parallel.

Preferably, the clamping arms are symmetrically arranged about a central axis of the fixing device body, and the moving directions of the 2 clamping arms are opposite.

Preferably, the side section of the supporting rod is of an inclined structure, and the supporting rod is fixedly connected with the connecting block and the clamping arm.

Preferably, the limiting rod and the clamping arm form a rotating structure through a limiting block, the overlooking cross section of the limiting rod is a bending structure, and the limiting rod is symmetrically arranged around the central axis of the clamping arm.

Compared with the prior art, the beneficial effects of the utility model are that: the limiting and fixing device for the numerical control grinding machine can be used for fixedly clamping workpieces of different specifications and is convenient to operate, so that the workpieces of different specifications can be ground, the workpieces can be secondarily fixed, and the workpieces are prevented from falling off during grinding;

1. the movable strip is meshed with the gear, the movable strip is fixedly connected with the clamping block, and the clamping block is in sliding connection with the limiting groove, so that when the movable strip is meshed with the gear, the clamping block slides in the limiting groove to limit the movement of the movable strip;

2. the clamping arm passes through stopper and gag lever post interconnect, is connected for rotating between gag lever post and the stopper, and the gag lever post passes through extrusion spring and clamping arm interconnect, and under extrusion spring's elastic action, extrusion spring extrusion gag lever post makes the gag lever post take place rotatoryly, carries out the secondary centre gripping to the work piece and fixes, prevents that the work piece from dropping at the in-process of polishing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall top view structure of the present invention;

FIG. 3 is a schematic view of the overall side-sectional structure of the present invention;

fig. 4 is the schematic view of the connection structure of the connection block and the clamping arm of the present invention.

In the figure: 1. a fixing device body; 2. a bearing; 3. a main shaft; 4. a servo motor; 5. a gear; 6. a limiting groove; 7. a clamping block; 8. a movable bar; 9. connecting blocks; 10. a clamp arm; 11. a support bar; 12. a soft cushion; 13. a limiting block; 14. a limiting rod; 15. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a limiting and fixing device for a numerical control grinding machine comprises a fixing device body 1, a bearing 2, a spindle 3, a servo motor 4, a gear 5, a limiting groove 6, a fixture block 7, a movable strip 8, a connecting block 9, a clamping arm 10, a supporting rod 11, a cushion 12, a limiting block 13, a limiting rod 14 and an extrusion spring 15, wherein the middle part of the fixing device body 1 is connected with the spindle 3 through the bearing 2, the lower end of the spindle 3 is connected with the servo motor 4, the upper end of the spindle 3 is sleeved with the gear 5, the limiting groove 6 is arranged on both sides of the inner wall of the fixing device body 1, the fixture block 7 is arranged inside the limiting groove 6, the end part of the fixture block 7 is connected with the movable strip 8, the connecting block 9 is arranged on the upper end surface of the movable strip 8, the upper end of the connecting block 9 is connected with the clamping arm 10, the clamping arm 10 is connected with the connecting block 9 through the supporting, and the stopper 13 is all installed to the surperficial both sides of centre gripping arm 10, and the outside cover of stopper 13 is equipped with gag lever post 14, and gag lever post 14 passes through extrusion spring 15 and centre gripping arm 10 interconnect.

Overlooking cross section of the fixture block 7 is set to be of a T-shaped structure, the fixture block 7 and the limiting groove 6 form a sliding installation structure, the outer wall of the fixture block 7 and the inner wall of the limiting groove 6 are mutually attached, the fixture block 7 limits movement of the movable strip 8, and the movable strip 8 is installed inside the fixing device body 1.

The outside of activity strip 8 is provided with sawtooth structure, and is connected for the meshing between activity strip 8 and the gear 5 to 2 activity strips 8 are parallel arrangement each other, and 8 movements of activity strip make centre gripping arm 10 can carry out the centre gripping to the work piece of different specifications fixed, make numerically control grinder's processing kind diversified.

The centre axis symmetry setting about fixing device body 1 of

centre gripping arm

10, and 2 centre gripping arms 10's motion opposite direction, and centre gripping arm 10 can carry out the centre gripping to the work piece of different specifications to it is swift to dismantle simple to operate.

The side section of the supporting rod 11 is set to be an inclined structure, the supporting rod 11 is fixedly connected with the connecting block 9 and the clamping arm 10, the supporting rod 11 plays a role of fixed supporting for the clamping arm 10, and the position of the clamping arm 10 is reinforced.

The limiting rod 14 and the clamping arm 10 form a rotating structure through the limiting block 13, the overlooking cross section of the limiting rod 14 is of a bending structure, the limiting rod 14 is symmetrically arranged relative to the central axis of the clamping arm 10, secondary clamping can be carried out on a workpiece, and the workpiece is prevented from falling off in the grinding process.

The working principle is as follows: when the limiting and fixing device for the numerical control grinding machine is used, according to the figures 1-4, a workpiece is placed on the fixing device body 1, the servo motor 4 is opened, the servo motor 4 works as shown in figure 3 to drive the spindle 3 fixed on the fixing device body 1 through the bearing 2 to rotate, the gear 5 sleeved at the upper end of the fixing device body 1 synchronously rotates, as shown in figures 1 and 3, the gear 5 is in meshing connection with the movable strip 8, the movable strip 8 is fixedly connected with the fixture block 7, the outer wall of the fixture block 7 is mutually attached to the inner wall of the limiting groove 6, so that the fixture block 7 limits the position and the movement of the movable strip 8, and as the movable strip 8 is symmetrically arranged relative to the central axis of the gear 5, the gear 5 rotates to drive the 2 movable strips 8 to simultaneously move towards the center of the fixing device body 1 or simultaneously towards the two sides of the fixing device body 1, the movable strip 8 is connected with the clamping arm 10 through the connecting block 9, so that the clamping arm 10 moves synchronously along with the movable strip 8, the clamping arm 10 can clamp and fix workpieces with different specifications, soft pads 12 are arranged on the surfaces of the clamping arm 10 and the fixing device body 1, the soft pads 12 are made of elastic rubber materials and can protect the outer wall of the workpiece, the clamping arm 10 is connected with the connecting block 9 through a supporting rod 11 as shown in fig. 4, and the supporting rod 11 strengthens and fixes the connection between the clamping arm 10 and the connecting block 9;

as shown in fig. 2, the limiting block 13 is symmetrically arranged about the central axis of the clamping arm 10, the limiting block 13 is rotatably connected with the limiting rod 14, the limiting rod 14 is connected with the clamping arm 10 through the extrusion spring 15, and the limiting rod 14 can fix the workpiece for the second time under the elastic supporting action of the extrusion spring 15, so that the workpiece is prevented from falling off in the polishing process.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a spacing fixing device for numerically control grinder, includes fixing device body (1), bearing (2) and servo motor (4), its characterized in that: the middle part of the fixing device body (1) is connected with the main shaft (3) through a bearing (2), the lower end of the main shaft (3) is connected with a servo motor (4), the upper end of the main shaft (3) is sleeved with a gear (5), both sides of the inner wall of the fixing device body (1) are provided with limiting grooves (6), the inside of each limiting groove (6) is provided with a clamping block (7), the end part of each clamping block (7) is connected with a movable strip (8), the upper end face of each movable strip (8) is provided with a connecting block (9), the upper end of each connecting block (9) is connected with a clamping arm (10), each clamping arm (10) is connected with the connecting block (9) through a supporting rod (11), the surfaces of the fixing device body (1) and the clamping arms (10) are provided with cushions (12), and both sides of the surface of each clamping arm (10) are provided with, the outside cover of stopper (13) is equipped with gag lever post (14), and gag lever post (14) through extrusion spring (15) and centre gripping arm (10) interconnect.

2. The spacing fixing device for the numerically controlled grinder as claimed in claim 1, wherein: the overlooking cross section of the clamping block (7) is of a T-shaped structure, the clamping block (7) and the limiting groove (6) form a sliding installation structure, and the outer wall of the clamping block (7) is attached to the inner wall of the limiting groove (6).

3. The spacing fixing device for the numerically controlled grinder as claimed in claim 1, wherein: the outside of activity strip (8) is provided with sawtooth structure, and is meshing connection between activity strip (8) and gear (5) to 2 activity strips (8) are parallel arrangement each other.

4. The spacing fixing device for the numerically controlled grinder as claimed in claim 1, wherein: the clamping arms (10) are symmetrically arranged about the central axis of the fixing device body (1), and the moving directions of the 2 clamping arms (10) are opposite.

5. The spacing fixing device for the numerically controlled grinder as claimed in claim 1, wherein: the side section of the supporting rod (11) is of an inclined structure, and the supporting rod (11), the connecting block (9) and the clamping arm (10) are fixedly connected.

6. The spacing fixing device for the numerically controlled grinder as claimed in claim 1, wherein: the limiting rod (14) and the clamping arm (10) form a rotating structure through the limiting block (13), the overlooking cross section of the limiting rod (14) is of a bending structure, and the limiting rod (14) is symmetrically arranged around the central axis of the clamping arm (10).