CN216098494U

CN216098494U - Clamping and positioning device

Info

Publication number: CN216098494U
Application number: CN202122072522.0U
Authority: CN
Inventors: 陆继波
Original assignee: Jiangsu Jeshine New Material Co ltd; Tunghsu Technology Group Co Ltd
Current assignee: Jiangsu Jeshine New Material Co ltd; Tunghsu Technology Group Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-22
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to a positioning device, and particularly discloses a clamping and positioning device which comprises a positioning device body (1), an upper positioning component, a lower positioning component (2), a left positioning component and a right positioning component (3), wherein a positioning groove (11) for accommodating a workpiece (4) to be processed is formed in the positioning device body, positioning claws (12) are also formed on two sides of the positioning groove, and the upper positioning component and the lower positioning component can be adjusted up and down so as to enable the workpiece to be processed, which is placed in the positioning groove, to be abutted against the positioning claws in a working state, and thus the positioning in the up-and-down direction is realized; the left positioning component (3) and the right positioning component (3) comprise positioning pins (31), one end of each positioning pin, which is arranged in the positioning groove, is provided with a positioning pin positioning contact surface which is used for contacting with a reference surface (41) of a workpiece to be processed, the positioning pins can be adjusted left and right, so that the workpiece to be processed can be abutted against the positioning pin positioning contact surfaces through the reference surfaces in a working state, and the left and right positioning is realized. The clamping and positioning device provided by the utility model is firm in workpiece clamping and has high positioning property.

Description

Clamping and positioning device

Technical Field

The utility model relates to a positioning device, in particular to a clamping and positioning device.

Background

The piezoelectric quartz crystal is an electronic functional material, is one of basic components in the technical field of electronic information, and is widely applied to the technical fields of wireless communication, PC, consumer electronics, automobile electronics and the like.

The intrinsic diffraction angle of the piezoelectric crystal is 35 degrees and 18 minutes, and when the piezoelectric crystal is processed, the angle of the crystal bar is generally required to be adjusted according to different frequency requirements (such as 35 degrees and 15 minutes or 35 degrees and 10 minutes) so as to enable the crystal bar to meet the angle requirement required by a customer by adjusting the angle of the crystal bar.

The clamping and positioning device in the prior art only directly limits the movement in one degree of freedom and indirectly limits the movement in other degrees of freedom through friction force and the like; or can directly restrict the movement in a plurality of degrees of freedom, but the process of location is too loaded down with trivial details, is unfavorable for the location, and the precision of location is not enough, can not satisfy the demand of high accuracy processing.

In view of the above, it is desirable to provide a clamp positioning device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping and positioning device which is simple in structure, easy to position and operate, high in positioning performance and not prone to moving of workpieces.

In order to achieve the purpose of the utility model, the clamping and positioning device provided by the utility model comprises a positioning device body, an upper positioning component, a lower positioning component, a left positioning component and a right positioning component, wherein the positioning device body is provided with a positioning groove for accommodating a workpiece to be processed, positioning claws are further formed on two sides of the positioning groove, and the upper positioning component and the lower positioning component can be adjusted up and down so as to enable the workpiece to be processed placed in the positioning groove to be abutted against the positioning claws in a working state, thereby realizing the positioning in the up-and-down direction; the left positioning assembly and the right positioning assembly comprise positioning pins, one end of each positioning pin, which is arranged in the corresponding positioning groove, is provided with a positioning pin positioning contact surface used for contacting with a reference surface of a workpiece to be processed, the positioning pins can be adjusted left and right, so that the workpiece to be processed can pass through the reference surface and the abutting joint of the positioning pin positioning contact surfaces in a working state, and the positioning in the left and right directions is realized.

Specifically, the locating pin sets up to be a plurality of, and all locate two on one of the lateral wall.

Preferably, the area of the locating pin locating contact surface is larger than the cross-sectional area of the locating pin shaft.

Further, the left and right positioning assembly further comprises side fixing screws, and the side fixing screws are arranged in a plurality of and are arranged on the other side of the two side walls.

Preferably, one end of the side fixing screw, which is arranged in the positioning groove, is provided with a side fixing screw positioning contact surface, and the area of the side fixing screw positioning contact surface is larger than the cross-sectional area of the screw rod of the side fixing screw.

Further preferably, the positioning pin is a manganese steel positioning pin.

Furthermore, the abutting surface of the positioning clamping jaw, which is used for contacting with the workpiece to be processed, is vertical to the side wall of the positioning groove; two of the lateral walls of the positioning groove are perpendicular to the bottom wall of the positioning groove.

Specifically, the upper and lower positioning components penetrate into the positioning groove from the bottom wall.

Further specifically, the upper and lower positioning components are compression screws, and the compression screws are arranged in a plurality of positions on the bottom wall corresponding to the positioning claws.

Preferably, one end of the compression screw, which is arranged in the positioning groove, is provided with a compression screw positioning contact surface, and the area of the compression screw positioning contact surface is larger than the cross-sectional area of the compression screw rod.

According to the clamping and positioning device provided by the utility model, the upper and lower positioning components are matched with the positioning clamping jaws to realize the direct positioning of the workpiece to be processed in the upper and lower directions, and the positioning pin is matched with the side fixing screw to realize the direct positioning of the workpiece to be processed in the left and right directions, namely the direct positioning of the workpiece to be processed in two degrees of freedom is realized, so that the positioning performance of the clamping and positioning device is extremely high, the workpiece to be processed is not easy to displace after being positioned, and the requirement of high-precision processing of the workpiece to be processed can be met; in addition, the positioning pin positioning contact surface on the positioning pin is abutted to the datum plane on the workpiece to be machined, so that the positioning accuracy can be ensured, and the position of the positioning pin can be kept unchanged, so that when a plurality of workpieces to be machined are sequentially positioned on the same clamping and positioning device in the left and right directions, only the side fixing screws need to be adjusted, and the workpieces to be machined can be conveniently positioned.

Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a front view of the clamp positioning device of the present invention;

FIG. 2 is a right side view of the clamp positioning device of the present invention;

FIG. 3 is a left side view of the clamp positioning device of the present invention;

fig. 4 is a schematic structural view of a workpiece to be machined in the clamping and positioning device of the utility model.

Description of the reference numerals

1-positioning device body 11-positioning groove

12-positioning jaw 121-abutment surface

2-up-down positioning component 3-left-right positioning component

31-positioning pin 32-side fixing screw

4-workpiece to be machined 41-datum plane

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the utility model, are given by way of illustration and explanation only, not limitation.

It should be noted that the front, rear, left and right orientations described below are established based on the reference frame of fig. 1 (front view).

As shown in fig. 1 and 4, in one embodiment of the clamping and positioning device of the present invention, the clamping and positioning device includes a positioning device body 1, an upper and lower positioning assembly 2, and a left and right positioning assembly 3. Wherein, the positioning device body 1 is formed with a positioning groove 11 capable of accommodating a workpiece 4 to be processed, the positioning groove 11 can be arranged to penetrate through the front and back direction of the positioning device body 1, or penetrate through one side of the positioning device body 1 in the front and back direction, so as to form at least one workpiece mounting opening to be processed on the positioning device body 1, thereby facilitating the insertion of the workpiece 4 to be processed into the positioning groove 11 through the workpiece mounting opening to be processed, the side walls at both sides of the positioning groove 11 are also formed with positioning claws 12, the upper and lower positioning components 2 can be adjusted up and down, the upper and lower positioning components 2 are adjusted in the direction far away from the positioning claws 12 before the workpiece 4 to be processed is placed, so as to facilitate the workpiece 4 to be processed to be placed into the positioning groove 11, after the workpiece 4 to be processed is placed into the positioning groove 11, the upper and lower positioning components 2 are adjusted in the direction near the positioning claws 12, thereby enabling the workpiece 4 to be processed to abut against the positioning claws, positioning in the up-and-down direction is realized; the left and right positioning components 3 comprise positioning pins 31, one end of each positioning pin 31, which is arranged in the positioning groove 11, is provided with a positioning pin positioning contact surface used for contacting with the reference surface 41 of the workpiece 4 to be processed, wherein, the reference surface 41 and the positioning contact surface of the positioning pin are both set to be planes with high flatness, so that the reference surface 41 and the positioning pin positioning contact surface are ensured not to be influenced by large surface roughness when being abutted, the positioning pin 31 can be adjusted left and right, when the workpiece 4 to be machined is placed, the positioning pin 31 needs to be adjusted in a direction away from the positioning slot 11, so that the workpiece 4 to be machined is placed in the positioning slot 11, after the workpiece 4 to be processed is placed in the positioning groove 11, the positioning pin 31 is adjusted toward the inside of the positioning groove 11, so that the workpiece 4 to be machined is positioned in the left-right direction by the abutment of the reference surface 41 thereof with the positioning pin positioning contact surface.

According to the clamping and positioning device provided by the utility model, the upper and lower positioning components 2 are matched with the positioning clamping jaws 12, so that the workpiece 4 to be processed is directly positioned in the upper and lower directions, the positioning contact surface of the positioning pin is abutted to the reference surface 41 on the workpiece 4 to be processed through the adjusting action of the positioning pin 31, and the workpiece 4 to be processed is directly positioned in the left and right directions, namely the workpiece 4 to be processed is directly positioned in two degrees of freedom, so that the clamping and positioning device is extremely high in positioning performance, the workpiece 4 to be processed is not easy to displace after being positioned, and the requirement for high-precision processing of the workpiece to be processed can be met; in addition, the positioning pin positioning contact surface on the positioning pin 31 is abutted to the reference surface 41 of the workpiece to be processed 4, and both are set to be high-flatness planes, so that the positioning accuracy can be ensured.

Specifically, in an embodiment of the clamping and positioning device of the present invention, the positioning pins 31 are provided in plural and are all provided on one of the two side walls, for example, as shown in fig. 2, one positioning pin 31 is provided at each of the front and rear portions of the positioning device body 1 to improve the stability of fixing the workpiece to be processed, and the positioning pins 31 are all provided at the right side of the positioning device body 1, while no other corresponding left and right positioning components may be provided at the left side of the positioning device body 1, so that the workpiece 4 to be processed moves to the left side of the positioning slot 11 during the adjustment process of the positioning pins 31 until abutting against the side wall at the left side of the positioning slot 11 to realize the positioning of the workpiece 4 to be processed in the left and right directions; or as shown in fig. 1, two positioning pins 31 are disposed on the right side of the positioning device body 1, and a plurality of side fixing screws 32 are disposed on the left side of the positioning device body 1, for example, as shown in fig. 3, one side fixing screw 32 is disposed on each of the front portion, the middle portion and the rear portion of the left side of the positioning device body 1 to improve the fixing stability of the workpiece to be processed, in the design, when a plurality of workpieces 4 to be processed with the same specification are required to be positioned on the same clamping and positioning device in the left-right direction, after the first workpiece 4 to be processed is positioned, the position of the positioning pin is kept unchanged, and the positioning of the workpiece 4 to be processed in the left-right direction can be realized only by adjusting the side fixing screws to make the reference surface 41 of the workpiece 4 to be processed abut against the positioning pins 31, so that the positioning accuracy of the workpiece to be processed can be ensured while the positioning of the workpiece to be processed is facilitated, it is of course understood that the positioning pin 31 is not limited to be disposed on the right side of the positioning apparatus body 1, and the side fixing screw 32 is not limited to be disposed on the left side of the positioning apparatus body 1, but may be disposed on a pair of oppositely disposed sides.

Further, in an embodiment of the clamping and positioning device of the present invention, as shown in fig. 1, the area of the positioning contact surface of the positioning pin is larger than the cross-sectional area of the pin shaft of the positioning pin 31, that is, the end of the positioning pin 31 in contact with the reference surface 41 is enlarged, so that the positioning pin 31 and the reference surface 41 can have a larger contact area, thereby preventing the damage of the reference surface 41 caused by stress concentration, which affects the positioning accuracy and the firmness of the clamping and positioning device for positioning the workpiece 4 to be processed, further, in order to facilitate the rotation adjustment of the positioning pin 31, the end of the positioning pin 31 in contact with the reference surface 41 should be set to a shape having a circumscribed circle diameter smaller than the width of the side wall of the positioning groove 11, for example, to be set to a disk shape having a diameter half of the width of the side wall of the positioning groove 11, in particular, in order to make the positioning contact surface of the positioning pin maintain high flatness after multiple uses, in order to ensure the accuracy of positioning, the positioning pin 31 can preferably be a manganese steel positioning pin made of manganese steel, and because the manganese steel has extremely high strength, the positioning contact surface of the positioning pin can be ensured not to deform after being used for a long time, high flatness can still be kept, and the positioning accuracy is ensured. Of course, it can be understood that, in order to prevent the side fixing screw 32 from extruding the workpiece 4 to be processed so that the workpiece 4 to be processed is damaged and the positioning accuracy is affected, the area of the positioning contact surface of the side fixing screw, which is arranged at the end of the side fixing screw 32 arranged in the positioning groove 11, may also be set to be larger than the cross-sectional area at the screw rod of the side fixing screw 32, so as to prevent the workpiece 4 to be processed from being damaged due to stress concentration, and further affect the positioning accuracy and the fixing degree of the clamping and positioning device to the workpiece 4 to be processed, further, in order to facilitate the rotation adjustment of the side fixing screw 32, the end of the side fixing screw 32 in contact with the workpiece 4 to be processed should be set to be in a shape with a circumscribed circle diameter smaller than the width of the side wall of the positioning groove 11, for example, set to be in a round cake shape with a diameter one half of the width of the side wall of the positioning groove 11.

Further, in one embodiment of the clamping and positioning device of the present invention, as shown in fig. 1, the abutting surface 121 of the positioning jaw 12 for contacting the workpiece 4 to be machined is perpendicular to the side wall of the positioning groove 11, and both side walls of the positioning groove 11 are perpendicular to the bottom wall of the positioning groove 11, and further, of the workpiece abutting surface of the workpiece 4 to be machined which is disposed in the positioning groove and contacts the abutting surface 121, the upper and lower workpiece abutting surfaces of the workpiece which contacts the upper and lower positioning members 2, and the left and right workpiece abutting surfaces which contact the left and right positioning members 3, the workpiece abutting surface is perpendicular to the left and right workpiece abutting surfaces, the design is such that the abutting surface 121 can be kept parallel to the bottom wall of the positioning groove 11 and the workpiece abutting surfaces and the upper and lower workpiece abutting surfaces, thereby facilitating the left and right adjustment of the workpiece 4 to be machined in the positioning groove 11, but also can make the work piece about butt face parallel and the diapire of perpendicular to constant head tank 11 with the lateral wall of constant head tank 11, on the one hand can make the work piece about the butt face can not produce the obstacle when being close to the lateral wall of constant head tank 11, on the other hand can make about 3 spin regulation of locating component in order to treat the in-process that the work piece 4 of processing carried out the displacement adjustment, about 3 locating component can all the time with treat processing work piece 4 and keep contacting steadily, the spin regulation direction of controlling 3 locating component simultaneously can be unanimous with the direction of motion of treating processing work piece 4, thereby can prevent to cause because of the spin regulation direction of controlling 3 locating component can be inconsistent with the direction of motion of treating processing work piece 4 and treat that processing work piece 4 butt at the diapire or the butt face 121 of constant head tank 11 earlier, thereby be difficult to carry out the condition of displacement adjustment under the influence of frictional force.

Further, in an embodiment of the clamping and positioning device of the present invention, as shown in fig. 1 and illustrated, the upper and lower positioning members 2 may be configured as a compression screw, the compression screw preferably vertically penetrates into the positioning groove 11 from the bottom wall, the positioning groove 11 perpendicular to the bottom wall can be adjusted by rotating the compression screw up and down without generating a lateral thrust on the workpiece 4 to be processed, the workpiece 4 to be processed can be prevented from being displaced in the left and right directions, so that the positioning accuracy can be improved, and the positioning contact surface of the compression screw contacting the workpiece 4 to be processed is configured as a plane, and it can be ensured that the entire positioning contact surface can be attached to the workpiece 4 to be processed when the workpiece 4 to be processed is pressed down by the rotation adjustment of the compression screw, so as to prevent the compression screw from damaging the workpiece 4 to be processed, in order to further prevent the compression screw from damaging the workpiece 4 to be processed, the area of the positioning contact surface of the compression screw can be preferably set to be larger than the cross-sectional area of the screw rod of the compression screw, the situation that the stress concentration causes damage to the workpiece 4 to be processed, and further the positioning precision and the firmness of the positioning of the clamping and positioning device on the workpiece 4 to be processed are influenced can be prevented; in addition, in order to ensure the firmness degree of the positioning and fastening of the clamping and positioning device to the workpiece 4 to be processed, the compression screws should be arranged in a plurality of numbers, for example, and preferably arranged at the positions corresponding to the positioning claws 12 on the bottom wall, so that the pressure of the compression screws on the workpiece 4 to be processed can be directly transmitted to the positioning claws 12 by the workpiece 4 to be processed, and can be directly received by the positioning claws 12, and the workpiece 4 to be processed can not be bent or even broken.

The following will describe the use steps of the clamping and positioning device, taking the left and right positioning components 3 as manganese steel positioning pins and side fixing screws 32, and the upper and lower positioning components 2 as fastening screws as examples:

firstly, wiping a positioning pin positioning contact surface of a manganese steel positioning pin to ensure the flatness of the positioning pin positioning contact surface, and specifically using water, alcohol or other special cleaning agents;

then, inserting the workpiece 4 to be processed into the positioning groove 11, rotating the manganese steel positioning pin, adjusting the manganese steel positioning pin to be consistent in length in the positioning groove 11, then rotating the side fixing screw 32 to enable the reference surface 41 of the workpiece 4 to be processed to abut against the positioning pin positioning contact surface of the manganese steel positioning pin, and stopping rotating the side fixing screw 32 when the reference surface 41 of the workpiece 4 to be processed just abuts against the positioning pin positioning contact surface of the manganese steel positioning pin;

then, the fastening screw is rotated and adjusted to enable the workpiece 4 to be machined to be abutted against the positioning clamping jaw 12, and the fastening screw is screwed tightly, so that positioning and fastening in the vertical direction are completed;

finally, the side fixing screws 32 are tightened again to complete positioning and fastening in the left-right direction.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the utility model. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.

Claims

1. The clamping and positioning device is characterized by comprising a positioning device body (1), an upper positioning component, a lower positioning component (2), a left positioning component and a right positioning component (3), wherein a positioning groove (11) for accommodating a workpiece (4) to be machined is formed in the positioning device body (1), positioning clamping jaws (12) are further formed on the side walls of the two sides of the positioning groove (11), and the upper positioning component and the lower positioning component (2) can be adjusted up and down so that the workpiece (4) to be machined placed in the positioning groove can be abutted against the positioning clamping jaws (12) in a working state to realize positioning in the up-and-down direction; control locating component (3) and include locating pin (31), locating pin (31) are arranged in one end in locating slot (11) is equipped with the locating pin location contact surface that is used for with datum plane (41) the contact of waiting to process work piece (4), adjusting about locating pin (31) can be controlled, with at operating condition can with wait to process work piece (4) through datum plane (41) with the butt of locating pin location contact surface, and the ascending location of left right side is realized.

2. The clamping and positioning device according to claim 1, characterized in that said positioning pins (31) are provided in plurality and are each provided on one of said two side walls.

3. The clamp positioning device according to claim 2, characterized in that the area of the positioning pin positioning contact surface is larger than the cross-sectional area of the pin shaft of the positioning pin (31).

4. The clamping and positioning device according to claim 2, characterized in that said left and right positioning assemblies (3) further comprise side fixing screws (32), said side fixing screws (32) being provided in plurality and each being provided on the other of said two side walls.

5. The clamping and positioning device according to claim 4, characterized in that the end of the side fixing screw (32) placed in the positioning slot (11) is provided with a side fixing screw positioning contact surface, and the area of the side fixing screw positioning contact surface is larger than the cross-sectional area at the screw of the side fixing screw (32).

6. The clamping and positioning device according to any of claims 1 to 5, characterized in that the positioning pin (31) is a manganese steel positioning pin.

7. The clamping and positioning device according to claim 6, characterized in that the abutment surfaces (121) of the positioning jaws (12) for contact with the workpiece (4) to be machined are perpendicular to the side walls of the positioning slot (11); the two side walls of the positioning groove (11) are perpendicular to the bottom wall of the positioning groove (11).

8. The clamp positioning device according to claim 7, characterized in that the upper and lower positioning assemblies (2) penetrate into the positioning slot (11) from the bottom wall.

9. The clamping and positioning device according to claim 8, characterized in that the upper and lower positioning members (2) are a plurality of compression screws provided at positions on the bottom wall corresponding to the positioning claws (12).

10. The clamping and positioning device according to claim 9, characterized in that the end of the compression screw placed in the positioning slot (11) is provided with a compression screw positioning contact surface, and the area of the compression screw positioning contact surface is larger than the cross-sectional area at the screw rod of the compression screw.