CN211465970U

CN211465970U - Cylindrical grinding tool

Info

Publication number: CN211465970U
Application number: CN201922049391.7U
Authority: CN
Inventors: 龙泽华; 龙轶
Original assignee: Sichuan Ruigong Heavy Hydraulic Parts Factory
Current assignee: Sichuan Ruigong Heavy Hydraulic Parts Factory
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-11
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses an excircle grinding tool, which relates to the field of tool machining fixtures and is used for clamping a workpiece when the excircle grinding is carried out on the workpiece with higher brittleness, wherein the workpiece is placed between an upper clamping block and a lower clamping block of a clamping device, the clamping block is moved through a lead screw guide rail device to clamp the workpiece, and then the workpiece is placed on a grinding machine tool or a grinding machine is placed on the grinding tool for excircle grinding operation; the output shaft of the motor drives the clamping device through the conveyor belt so as to drive the workpiece to be machined to rotate.

Description

Cylindrical grinding tool

Technical Field

The utility model relates to a frock machining anchor clamps field, in particular to cylindrical grinding frock.

Background

When the outer surface of a cylindrical, conical or other-shaped plain line of a workpiece is machined, a cylindrical grinding machine is required to be used for cylindrical grinding, and when the cylindrical grinding is conducted, a cylindrical grinding tool is required to be used, namely, a cylindrical grinding clamp clamps the workpiece to be machined, and under the ordinary condition, double tips are used for supporting at two ends of the workpiece, the workpiece with higher brittleness is not suitable for supporting by the double tips, and when the workpiece with higher brittleness is conducted, a special cylindrical grinding tool clamp is required to be specially used for clamping.

When the workpiece with higher brittleness is subjected to cylindrical grinding, no special cylindrical grinding tool clamp specially aiming at clamping is provided.

Disclosure of Invention

The utility model aims to provide a: the utility model provides an external grinding frock has solved when carrying out external grinding to the work piece that the fragility is higher and adds man-hour, does not have the special external grinding frock clamp that a special aim at to carry out the problem of centre gripping.

The utility model adopts the technical scheme as follows:

an outer circle grinding tool comprises a base and a support frame, wherein the support frame is fixed on one side of the base, a rotary clamping device is fixed on one side, close to the base, of the support frame, a motor is arranged at the top end of the support frame, and an output shaft of the motor is connected with a rotating shaft of the clamping device through a conveying belt;

the clamping device mainly comprises a fixed plate and clamping blocks which are respectively arranged at the corresponding positions of the top end and the bottom end of the fixed plate, and the clamping blocks are fixed on a lead screw guide rail device on the fixed plate.

The utility model relates to an external grinding tool, which is used for clamping a workpiece when the external grinding is carried out on the workpiece with higher brittleness, the workpiece is placed between an upper clamping block and a lower clamping block of a clamping device, the clamping blocks are moved through a lead screw guide rail device to clamp the workpiece, and then the workpiece is placed on a grinding machine tool, or the grinding machine is placed on the grinding tool for external grinding operation; the output shaft of the motor drives the clamping device through the conveyor belt so as to drive the workpiece to be machined to rotate.

Furthermore, the base is further provided with a supporting rod, the supporting rod is arranged on a vertical surface of the rotating shaft of the clamping device, and a rotating abutting block is arranged on one side, corresponding to the clamping device, of the supporting rod.

For longer work piece, if only carry out the centre gripping at clamping device this end, because the action of gravity of work piece self can make the work piece produce the skew downwards, cause the axis of work piece and clamping device's rotation axis inconsistent, and then make machining precision greatly reduced, probably destroy the work piece even, therefore we set up the bracing piece, can support the tight work piece other end for the work piece is rotatory along clamping device's rotation axis firmly.

Further, the abutting block is connected with the supporting rod through a bearing structure, and the supporting rod is connected with the base through a screw rod guide rail structure.

In detail, the abutting block abuts against the workpiece tightly, so that the abutting block also needs a rotating structure in order to be matched with the workpiece to rotate, the abutting block is connected with the supporting rod through the bearing, generally speaking, an outer ring of the bearing is connected with the supporting rod, a protruding structure is arranged at the connecting position of the abutting block and the supporting rod, an inner ring of the bearing is sleeved on the protruding structure of the abutting block, and the abutting block can also rotate to be matched with the workpiece to rotate.

Furthermore, the fixed plate of the clamping device is connected with the support frame through a bearing structure, the support frame is provided with a protruding block on one side close to the base, and the clamping device is connected with the protruding block.

In detail, the clamping device is also connected with the support frame by using a bearing structure, a convex block is arranged on the support frame, a bearing is arranged on the convex block, the convex block is connected to an outer ring of the bearing, and a bulge which is suitable for an inner ring of the bearing is arranged on a fixing plate of the inner ring sleeve street clamping device of the bearing.

Furthermore, the clamping block is provided with an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block are mutually contacted through a mutually matched inclined plane, and the upper clamping block and the lower clamping block are fixed through the cushion blocks on the side surfaces and the screws of the cushion blocks.

For a hollow cylindrical workpiece, the clamping block can be used for tightly supporting the inner wall of the hollow cylindrical workpiece from inside to outside so as to fix the workpiece tightly, so that the clamping block is arranged into an upper clamping block and a lower clamping block which are mutually matched and connected through an inclined surface, and the clamping block and the lower clamping block are fixedly connected through a cushion block and a screw.

Further, the cushion blocks cover partial side surfaces of the upper clamping block and the lower clamping block, and the screws are screwed into the upper clamping block and the lower clamping block through the cushion blocks.

Further, one of the upper and lower clamping blocks is made of a flexible material.

The flexible material is used, one end of the clamping block made of the flexible material is close to the brittle workpiece, and therefore the flexible material is contacted with the brittle workpiece, and the workpiece can be effectively prevented from being damaged due to the fact that the workpiece is contacted with the clamping block, and the clamping block is too high in hardness.

Further, the concrete fixed mode that the grip block is fixed on the lead screw guide rail device on the fixed plate mainly does, lead screw guide rail device's lead screw both ends screw thread opposite direction, set up a montant behind the lead screw, the grip block cup joints on lead screw and montant.

Set up the lead screw of lead screw guide rail device into the screw rod that both ends screw thread opposite direction, when rotating the lead screw like this, cup joint the grip block at the lead screw both ends and can remove to direction in opposite directions, the grip block that can guarantee both ends like this is the same apart from the distance of lead screw central authorities, and the central point of lead screw is clamping device's rotation axis promptly, guarantee that the axle center of the tight work piece of grip block clamp is in on the rotation axis, lead screw and montant cooperation grip block form a simple and easy lead screw guide rail device, the displacement of montant restriction grip block horizontal direction, make it only can produce the displacement in vertical direction.

Furthermore, the screw rod extends upwards out of the fixing plate and is sleeved with a handle.

The handle is used to more conveniently rotate the lead screw.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model relates to an external grinding tool, which uses the upper and lower clamping blocks to clamp the brittle workpiece in a matching way, ensures that the brittle workpiece can be stably processed by rotating and matching the external grinding machine, and reduces the possibility of damaging the brittle workpiece;

2. the utility model relates to an excircle grinding frock uses simple structure's frock clamp, when producing to the small batch of fragile work piece, the fragile work piece is pressed close to the flexible material part of grip block, guarantees that the fragile work piece is difficult impaired.

3. The utility model relates to an excircle grinding frock uses the lead screw guide device cooperation grip block that contains both ends screw thread opposite direction lead screw for the grip block can all carry out the centre gripping to the frock in the certain size, and the range of application is wide.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the clamping device of the present invention;

fig. 3 is a schematic structural view of the screw guide rail device of the present invention;

in the figure, 1-base, 2-support frame, 3-clamping device, 4-motor, 5-conveyor belt, 6-screw guide rail device, 7-support rod, 8-abutting block, 201-convex block, 301-fixing plate, 302-clamping block, 303-upper clamping block, 304-lower clamping block, 305-inclined plane, 306-cushion block, 307-screw, 601-screw rod, 602-vertical rod, 603-handle.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The present invention will be described in detail with reference to fig. 1, 2 and 3.

Example 1

An outer circle grinding tool comprises a base 1 and a support frame 2, wherein the support frame 2 is fixed on one side of the base 1, a rotary clamping device 3 is fixed on one side, close to the base 1, of the support frame 2, a motor 4 is arranged at the top end of the support frame 2, and an output shaft of the motor 4 is connected with a rotating shaft of the clamping device 3 through a conveying belt 5;

the clamping device 3 mainly comprises a fixing plate 301 and clamping blocks 302 respectively installed at corresponding positions of the top end and the bottom end of the fixing plate 301, and the clamping blocks 302 are fixed on the screw rod guide rail device 6 on the fixing plate 301.

The utility model relates to an external grinding frock for when carrying out external grinding to the work piece that the fragility is higher, carry out the work piece centre gripping, the work piece is placed between two upper and lower grip blocks 302 of clamping device 3, moves grip block 302 through lead screw guide rail device 6 and presss from both sides tight work piece, then puts on the grinding machine tool, or uses the grinding machine to arrange on the grinding frock and carry out the external grinding operation; the output shaft of the motor 4 drives the clamping device 3 through the conveyor belt 5 to further drive the workpiece to be machined to rotate, generally speaking, when a workpiece with high brittleness is machined, the rotating speed of the workpiece is not too high, and the rotating speed is kept low, so that the workpiece can be machined by using a grinding machine or a grinding machine tool.

Example 2

In this embodiment, as further described in embodiment 1, as shown in fig. 1, a support rod 7 is further disposed on the base 1, the support rod 7 is disposed on a vertical surface of a rotation shaft of the clamping device 3, and a rotating abutting block 8 is disposed on the support rod 7 at a side corresponding to the clamping device 3.

For longer work piece, if only carry out the centre gripping at clamping device 3 this end, because the action of gravity of work piece self can make the work piece produce the skew downwards, cause the axis of work piece and clamping device 3's rotation axis inconsistent, and then make machining precision greatly reduced, probably destroy the work piece even, therefore we set up bracing piece 7, can support the tight work piece other end for the work piece is firm along the rotation axis rotation of clamping device 3.

Example 3

This embodiment is a further description of embodiment 2, and as shown in fig. 1, the abutting block 8 is connected to the supporting rod 7 through a bearing structure, and the supporting rod 7 is connected to the base 1 through a screw rod guide rail structure.

In detail, the abutting block 8 is abutted against the workpiece tightly, so that the abutting block 8 also needs a rotating structure for matching the workpiece to rotate, and therefore the abutting block 8 is connected with the supporting rod 7 through a bearing, generally speaking, an outer ring of the bearing is connected with the supporting rod 7, a protruding structure is arranged at the position where the abutting block 8 is connected with the supporting rod 7, and an inner ring of the bearing is sleeved on the protruding structure of the abutting block, so that the abutting block 8 can also rotate to match the workpiece to rotate.

Example 4

This embodiment is further explained in embodiment 1, as shown in fig. 1, the fixing plate 301 of the clamping device 3 is connected to the supporting frame 2 through a bearing structure, the supporting frame 2 has a protruding block 201 on a side close to the base 1, and the clamping device 3 is connected to the protruding block 201.

In detail, the holding device 3 is also connected to the supporting frame 2 by using a bearing structure, a protruding block 201 is arranged on the supporting frame 2, a bearing is arranged on the protruding block 201, the protruding block 201 is connected to the outer ring of the bearing, and a protrusion adapted to the inner ring of the bearing is arranged on the fixing plate 301 of the inner ring housing street holding device 3 of the bearing.

Example 5

This embodiment is further described in embodiment 1, as shown in fig. 1 and fig. 2, the clamping block 302 is provided with an upper clamping block 303 and a lower clamping block 304, the upper clamping block 303 and the lower clamping block 304 are contacted with each other through a mutually matched inclined surface 305, and the upper clamping block 303 and the lower clamping block 304 are fixed through a lateral spacer block 306 and a screw 307 of the spacer block 306.

For a hollow cylindrical workpiece, the clamping block 302 can be used to tightly press against the inner wall of the hollow cylindrical workpiece from the inside to the outside so as to fix the workpiece, so that the clamping block 302 is provided with an upper clamping block 303 and a lower clamping block 304 which are mutually matched and connected through an inclined surface 305, and is fixedly connected through a cushion block 306 and a screw 307.

Example 6

This embodiment is further explained in embodiment 5, as shown in fig. 2, the spacer block 306 covers part of the side surfaces of the upper clamping block 303 and the lower clamping block 304, and the screw 307 is screwed into the upper clamping block 303 and the lower clamping block 304 through the spacer block 306.

Further, one of the upper and

lower clamp blocks

303 and 304 is made of a flexible material.

The flexible material is used, one end of the clamping block 302 made of the flexible material is close to the brittle workpiece, so that the flexible material is contacted with the brittle workpiece, and the workpiece can be effectively prevented from being damaged due to the fact that the workpiece is contacted with the clamping block 302 with too high hardness.

Example 7

The embodiment is further described in embodiment 1, as shown in fig. 3, a specific fixing manner of fixing the clamping block 302 on the lead screw guide rail device 6 on the fixing plate 301 is mainly that, as shown in fig. 3-a, two ends of a lead screw 601 of the lead screw guide rail device 6 are opposite in thread direction, as shown in fig. 3-B, a vertical rod 602 is arranged behind the lead screw 601, and the clamping block 302 is sleeved on the lead screw 601 and the vertical rod 602.

The lead screw 601 of the lead screw guide rail device 6 is set to be a screw with opposite thread directions at two ends, when the lead screw 601 is rotated, the clamping blocks 302 sleeved at two ends of the lead screw 601 can move towards opposite directions, so that the distance between the clamping blocks 302 at two ends and the center of the lead screw 601 is the same, the central position of the lead screw 601 is the rotating shaft of the clamping device 3, the axle center of a workpiece clamped by the clamping blocks 302 is ensured to be positioned on the rotating shaft, the lead screw 601 and the vertical rod 602 are matched with the clamping blocks 302 to form the simple lead screw guide rail device 6, the vertical rod 602 limits the displacement of the clamping blocks 302 in the horizontal direction, and the lead screw 601 can only generate displacement in the.

Example 8

This embodiment is a further description of embodiment 7, and as shown in fig. 3, the screw 601 extends upward out of the fixing plate 301 and is sleeved with a handle 603.

The handle 603 is used to more conveniently rotate the lead screw 601.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an external grinding frock, includes base (1), support frame (2), its characterized in that: the supporting frame (2) is fixed on one side of the base (1), a rotary clamping device (3) is fixed on one side, close to the base (1), of the supporting frame (2), a motor (4) is arranged at the top end of the supporting frame (2), and an output shaft of the motor (4) is connected with a rotating shaft of the clamping device (3) through a conveying belt (5);

the clamping device (3) mainly comprises a fixing plate (301) and clamping blocks (302) which are respectively arranged at the corresponding positions of the top end and the bottom end of the fixing plate (301), wherein the clamping blocks (302) are fixed on a screw rod guide rail device (6) on the fixing plate (301).

2. The cylindrical grinding tool according to claim 1, characterized in that: still be provided with bracing piece (7) on base (1), bracing piece (7) set up on the vertical face of clamping device (3) rotation axis, clamping device (3) correspond one side on bracing piece (7) and be provided with rotatory piece (8) that supports.

3. The cylindrical grinding tool according to claim 2, characterized in that: the abutting block (8) is connected with the supporting rod (7) through a bearing structure, and the supporting rod (7) is connected with the base (1) through a screw rod guide rail structure.

4. The cylindrical grinding tool according to claim 1, characterized in that: fixing plate (301) of clamping device (3) are connected with support frame (2) through bearing structure, there is protruding piece (201) support frame (2) in one side that is close to base (1), clamping device (3) and protruding piece (201) are connected.

5. The cylindrical grinding tool according to claim 1, characterized in that: the clamping block (302) is provided with an upper clamping block (303) and a lower clamping block (304), the upper clamping block (303) and the lower clamping block (304) are contacted with each other through a mutually matched inclined surface (305), and the upper clamping block (303) and the lower clamping block (304) are fixed through a lateral cushion block (306) and a screw (307) of the cushion block (306).

6. The cylindrical grinding tool according to claim 5, characterized in that: the cushion block (306) covers partial side surfaces of the upper clamping block (303) and the lower clamping block (304), and the screw (307) is screwed into the upper clamping block (303) and the lower clamping block (304) through the cushion block (306).

7. The cylindrical grinding tool according to claim 5 or 6, characterized in that: one of the upper clamping block (303) and the lower clamping block (304) is made of a flexible material.

8. The cylindrical grinding tool according to claim 1, characterized in that: the concrete fixed mode that centre gripping piece (302) were fixed on lead screw guide rail device (6) on fixed plate (301) mainly does, lead screw (601) both ends screw thread opposite direction of lead screw guide rail device (6), set up a montant (602) behind lead screw (601), centre gripping piece (302) cup joints on lead screw (601) and montant (602).

9. The cylindrical grinding tool according to claim 8, characterized in that: the screw rod (601) extends upwards out of the fixing plate (301) and is sleeved with a handle (603).