Positioning clamp for precision part machining

Abstract

The utility model discloses a positioning fixture for processing precision parts, which comprises a bottom plate and a mounting column, a plurality of mounting grooves are uniformly arranged on the bottom plate, clamping plates are arranged on two sides of the mounting column, elastic connecting structures are arranged between the clamping plates and the mounting column, and mounting limit structures are arranged between the outer sides of the clamping plates and the mounting grooves. A fixing column is arranged at the top end of the mounting column and sleeved with a mounting sleeve, a locking piece is arranged on the mounting sleeve in a threaded mode, the inner end of the locking piece abuts against the side wall of the fixing column, an adjusting column is arranged on the mounting sleeve in a threaded mode, a clamping block is arranged at the inner end of the adjusting column, and an adjusting knob is arranged at the outer end of the adjusting column. According to the shape of the precise part, the precise part can be clamped and fixed in the machining process, use is more convenient, and disassembly is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing fixtures, and specifically to a positioning fixture used for precision parts processing. Background Art

[0002] During the processing of precision parts, the parts need to be clamped and fixed. The existing positioning fixtures for parts processing mainly include precision flat-nose pliers, three-jaw chucks, magnetic suction cups, special pressure plates, etc. The advantage of these fixtures is good specialization, but due to the different shapes of different parts, it is not convenient to flexibly adjust the clamping position according to the shape of the parts, and the convenience of use is poor; and the above-mentioned fixtures are not convenient to install and disassemble during use, nor are they convenient to flexibly adjust the clamping angle, so it is necessary to improve them. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a positioning fixture for precision parts processing to solve the above technical problems mentioned in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for precision parts processing, comprising a bottom plate, on which a plurality of mounting grooves are evenly formed;

[0005] It also includes a mounting column, clamping plates are provided on both sides of the mounting column, an elastic connection structure is provided between the clamping plate and the mounting column, an installation limiting structure is provided between the outer side of the clamping plate and the mounting groove, a fixing column is provided at the top of the mounting column, a mounting sleeve is provided on the fixing column, a locking piece is threaded on the mounting sleeve, the inner end portion of the locking piece is abutted against the side wall of the fixing column, an adjusting column is threaded on the mounting sleeve, a clamping block is provided at the inner end portion of the adjusting column, and an adjusting knob is provided at the outer end portion.

[0006] The utility model is further configured such that an anti-skid pad is provided on the outer surface of the clamping block, and anti-skid patterns are provided on the surface of the anti-skid pad. The anti-skid property of the surface of the clamping block can be improved by the cooperation of the anti-skid pad and the anti-skid patterns.

[0007] The utility model is further configured such that a locking groove is provided on the inner side of the clamping block, and a locking block is provided on the end of the adjusting column away from the adjusting knob, and the locking block and the locking groove are engaged with each other. Through the setting of the locking groove and the locking block, the clamping block can be detachably installed on the adjusting column, which is convenient for selecting clamping blocks of different shapes for more precision parts to be processed.

[0008] The utility model is further configured such that the installation limit structure includes a limit block arranged on the outer side of the bottom of the clamping plate, and a limit groove is opened on the inner wall of the installation groove. The setting of the limit block and the limit groove can improve the connection stability between the clamping plate and the inner wall of the installation groove, and improve the installation stability of the installation column inside the installation groove.

[0009] The utility model is further configured such that the elastic connection structure includes a connecting column arranged on the inner side of the clamping plate, a connecting groove is opened on the mounting column, the connecting column is slidably located in the connecting groove, and a spring is arranged between the connecting column and the inner wall of the connecting groove, and the elastic connection between the clamping plate and the mounting column can be improved by the cooperation of the connecting groove, the connecting column and the spring.

[0010] The utility model is further configured such that a fixing hole is opened at an edge position of the bottom plate, and a fixing bolt is arranged in the fixing hole. Through the cooperation of the fixing hole and the fixing bolt, the base can be stably installed on the external installation interface.

[0011] The utility model is further configured that a protective pad is arranged at the bottom end of the base plate, and the installation stability of the base plate can be improved by the provision of the protective pad.

[0012] The utility model is further configured that the upper end of the side wall of the clamping plate is provided with an anti-skid ridge, and the anti-skid property of the surface of the clamping plate during kneading can be improved by the provision of the anti-skid ridge.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model includes a base plate, on which a plurality of mounting grooves are evenly arranged, and also includes mounting columns, clamping plates are arranged on both sides of the mounting columns, an elastic connection structure is arranged between the clamping plate and the mounting columns, the elastic connection structure includes a connecting column arranged on the inner side of the clamping plate, a connecting groove is arranged on the mounting column, the connecting column is slidably located in the connecting groove, and a spring is arranged between the connecting column and the inner wall of the connecting groove, an installation limiting structure is arranged between the outer side of the clamping plate and the mounting groove, the installation limiting structure includes a limiting block arranged on the outer side of the bottom of the clamping plate, and a limiting groove is arranged on the inner wall of the mounting groove; during installation, the positioning fixture can be flexibly installed on the base plate through the cooperation of the mounting column and the mounting groove, so that the positioning, clamping and fixing can be flexibly performed according to the shape of the precision parts, thereby improving the flexibility of use.

[0015] 2. When installing the utility model, the clamping plates on both sides are pinched to make the clamping plates lean inwardly toward the installation column. The installation column carries the clamping plates into the installation groove. Then, the pinching force of the clamping plates is released. Under the action of the spring, the connecting column can be pushed to drive the clamping plates to move outward. The clamping plates drive the limit blocks into the limit grooves. The installation limit of the installation column in the installation groove can be achieved through the cooperation of the limit grooves and the limit blocks, thereby improving the installation stability of the installation column in the installation groove. At the same time, the installation and disassembly are convenient.

[0016] 3. The utility model provides a fixing column at the top of the mounting column, a mounting sleeve is sleeved on the fixing column, a locking piece is threadedly provided on the mounting sleeve, and the inner end of the locking piece is abutted against the side wall of the fixing column; an adjusting column is threadedly provided on the mounting sleeve, a clamping block is provided at the inner end of the adjusting column, and an adjusting knob is provided at the outer end; when in use, after the mounting column carrying the clamping plate is engaged into the mounting groove, the adjusting knob is rotated, and the adjusting column can be controlled to rotate by the adjusting knob, so that the adjusting column generates a horizontal movement at the top of the mounting sleeve, thereby realizing the adjustment of the clamping position of the clamping block.

[0017] 4. In the utility model, the installation sleeve is arranged on the fixed column, so that the installation sleeve can be rotated and adjusted relative to the fixed column. When the installation sleeve rotates relative to the fixed column, the adjustment column can be driven to rotate, and the clamping angle of the clamping block can be flexibly adjusted.

[0018] 5. The utility model can also adjust the installation position of the installation sleeve on the fixed column, so as to realize flexible adjustment of the clamping height of the clamping block to the precision parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture used for precision parts processing in the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of a local connection structure between the mounting column and the base plate in the utility model;

[0021] Figure 3 It is a schematic diagram of a partial cross-sectional exploded view of the connection structure between the mounting column and the base plate in the utility model;

[0022] Figure 4 It is an exploded schematic diagram of the connection structure between the installation sleeve and the fixing column in the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of the connection structure between the mounting column and the clamping plate in the utility model.

[0024] In the figure: 1. Base plate; 2. Mounting groove; 3. Mounting column; 4. Clamping plate; 5. Fixed column; 6. Mounting sleeve; 7. Locking piece; 8. Adjusting column; 9. Clamping block; 10. Adjusting knob; 11. Anti-skid pad; 12. Anti-skid pattern; 13. Engaging groove; 14. Engaging block; 15. Limiting block; 16. Limiting groove; 17. Connecting column; 18. Connecting groove; 19. Spring; 20. Fixing hole; 21. Fixing bolt; 22. Protective pad; 23. Anti-skid ridge. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5 , a positioning fixture for precision parts processing, comprising a base plate 1, on which a plurality of mounting grooves 2 are evenly formed;

[0029] It also includes a mounting column 3, with clamping plates 4 provided on both sides of the mounting column 3, an elastic connection structure provided between the clamping plate 4 and the mounting column 3, the elastic connection structure including a connecting column 17 provided on the inner side of the clamping plate 4, a connecting groove 18 provided on the mounting column 3, the connecting column 17 is slidably located in the connecting groove 18, and a spring 19 is provided between the connecting column 17 and the inner wall of the connecting groove 18, an installation limiting structure is provided between the outer side of the clamping plate 4 and the mounting groove 2, the installation limiting structure including a limiting block 15 provided on the outer side of the bottom of the clamping plate 4, and a limiting groove 16 is provided on the inner wall of the mounting groove 2;

[0030] During installation, the positioning fixture can be flexibly installed on the base plate 1 through the cooperation of the mounting column 3 and the mounting groove 2, so that the positioning, clamping and fixing of the precision parts during processing can be flexibly performed according to the shape of the precision parts, thereby improving the overall flexibility during use;

[0031] The clamping plates 4 on both sides are pinched so that the clamping plates 4 are pressed inwardly toward the mounting column 3, so that the mounting column 3 carries the clamping plates 4 into the mounting groove 2. Afterwards, the pinching force of the clamping plates 4 is released, and under the action of the spring 19, the connecting column 17 can be pushed to drive the clamping plates 4 to move outward, thereby driving the limit block 15 into the limit groove 16 through the clamping plates 4. The installation limit of the mounting column 3 in the mounting groove 2 can be achieved through the cooperation of the limit groove 16 and the limit block 15, thereby improving the installation stability of the mounting column 3 in the mounting groove 2, and making installation and disassembly convenient.

[0032] The utility model is provided with a fixing column 5 at the top end of the mounting column 3, a mounting sleeve 6 is sleeved on the fixing column 5, a locking piece 7 is threadedly provided on the mounting sleeve 6, the inner end of the locking piece 7 is abutted against the side wall of the fixing column 5, an adjusting column 8 is threadedly provided on the mounting sleeve 6, a clamping block 9 is provided at the inner end of the adjusting column 8, and an adjusting knob 10 is provided at the outer end.

[0033] When in use, after the mounting column 3 carrying the clamping plate 4 is clamped into the mounting groove 2, the adjusting knob 10 is turned, and the adjusting column 8 can be controlled to rotate by the adjusting knob 10, so that the adjusting column 8 moves horizontally at the top end of the mounting sleeve 6, thereby adjusting the clamping position of the clamping block 9, thereby achieving the clamping and fixing of the clamping block 9 during the processing of precision parts;

[0034] At the same time, the mounting sleeve 6 is sleeved on the fixed column 5, so that the mounting sleeve 6 can be rotated and adjusted relative to the fixed column 5, and the adjusting column 8 can be driven to rotate when the mounting sleeve 6 rotates relative to the fixed column 5, so that the clamping angle of the clamping block 9 can be adjusted, thereby realizing the flexible adjustment of the clamping angle of the precision parts by the clamping block 9;

[0035] At the same time, the installation position of the installation sleeve 6 on the fixing column 5 can be adjusted, so that the clamping height of the clamping block 9 for the precision parts can be flexibly adjusted.

[0036] See also Figure 1-Figure 5 As an implementation of the clamping block 9 , an outer surface of the clamping block 9 is provided with an anti-skid pad 11 , and the surface of the anti-skid pad 11 is provided with anti-skid patterns 12 .

[0037] Specifically, the anti-skid pad 11 and the anti-skid pattern 12 can cooperate to improve the anti-skid property of the surface of the clamping block 9, thereby improving the clamping stability of the clamping block 9 when clamping precision parts.

[0038] See also Figure 1-Figure 5 As an implementation of the clamping block 9: a clamping groove 13 is provided on the inner side of the clamping block 9, and a clamping block 14 is provided at one end of the adjusting column 8 away from the adjusting knob 10, and the clamping block 14 and the clamping groove 13 are engaged with each other.

[0039] Specifically, the clamping block 9 is fixed on the adjusting column 8 by the mutual engagement of the engaging block 14 and the engaging groove 13. In this way, it is convenient for the clamping block 9 to flexibly adjust the clamping angle on the adjusting column 8. Preferably, a damping pad is bonded to the inner wall of the engaging groove 13 to increase the friction between the engaging block 14 and the engaging groove 13. At the same time, the engaging block 14 and the engaging groove 13 are cylindrical structures.

[0040] See also Figure 1-Figure 5 As an implementation of the bottom plate 1 , a fixing hole 20 is opened at the edge of the bottom plate 1 , and a fixing bolt 21 is arranged in the fixing hole 20 .

[0041] Specifically, for wind guidance, the cooperation between the fixing bolts 21 and the fixing holes 20 can realize the stable installation of the base plate 1 on the external installation interface.

[0042] See also Figure 1-Figure 5 As an implementation of the base plate 1 : a protective pad 22 is provided at the bottom end of the base plate 1 .

[0043] Specifically, the installation stability of the base plate 1 can be improved by disposing the protection pad 22 .

[0044] See also Figure 1-Figure 5 As an implementation of the clamping plate 4 , an anti-slip ridge 23 is provided at the upper end of the side wall of the clamping plate 4 .

[0045] Specifically, the anti-skid ridges 23 can be provided to improve the anti-skid property of the clamping plate 4 during kneading.

[0046] In summary, when the positioning fixture is used:

[0047] Pass the fixing bolt 21 through the fixing hole 20 and connect it to the installation interface of the external CNC machine tool workbench, so as to realize the installation and fixation of the base;

[0048] The precision parts to be processed are placed on the bottom plate 1, and the clamping plates 4 on both sides are pinched so that the clamping plates 4 are inwardly leaned against the mounting column 3, so that the mounting column 3 carries the clamping plates 4 into the mounting groove 2, and then the pinching force of the clamping plates 4 is released. Under the action of the spring 19, the connecting column 17 can be pushed to drive the clamping plates 4 to move outward, thereby driving the limit block 15 into the limit groove 16 through the clamping plate 4. The installation limit of the mounting column 3 in the mounting groove 2 can be achieved through the cooperation of the limit groove 16 and the limit block 15, thereby improving the installation stability of the mounting column 3 in the mounting groove 2;

[0049] The mounting column 3 is installed at a suitable position outside the precision component, and the clamping block 9 is facing the precision component;

[0050] The adjusting knob 10 is turned to control the rotation of the adjusting column 8, so that the adjusting column 8 moves horizontally at the top of the mounting sleeve 6, thereby adjusting the clamping position of the clamping block 9, thereby achieving the clamping and fixing of the clamping block 9 during the processing of precision parts;

[0051] The utility model sets the installation sleeve 6 on the fixed column 5, so that the installation sleeve 6 can be rotated and adjusted relative to the fixed column 5, and the adjustment column 8 can be driven to rotate when the installation sleeve 6 rotates relative to the fixed column 5, so that the clamping angle of the clamping block 9 can be adjusted, thereby realizing the flexible adjustment of the clamping angle of the precision parts by the clamping block 9;

[0052] At the same time, the installation position of the installation sleeve 6 on the fixing column 5 can be adjusted, so that the clamping height of the clamping block 9 for the precision parts can be flexibly adjusted.

[0053] In all the schemes mentioned above, the connection between two parts can be selected according to the actual situation by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably considered to be welding. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents;

[0054] In all the schemes mentioned above, those involving the operation of electrical components are controlled by the controller unless otherwise clearly described. Since the devices matched with the controller are commonly used devices, their control principles and line connections are all existing well-known and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A positioning fixture for precision parts processing, comprising a base plate (1), characterized in that: The bottom plate (1) is evenly provided with a plurality of mounting grooves (2); It also includes a mounting column (3), clamping plates (4) are arranged on both sides of the mounting column (3), an elastic connection structure is arranged between the clamping plate (4) and the mounting column (3), an installation limit structure is arranged between the outer side of the clamping plate (4) and the mounting groove (2), a fixing column (5) is arranged at the top end of the mounting column (3), a mounting sleeve (6) is sleeved on the fixing column (5), a locking piece (7) is threadedly arranged on the mounting sleeve (6), the inner end of the locking piece (7) is abutted against the side wall of the fixing column (5), an adjusting column (8) is threadedly arranged on the mounting sleeve (6), a clamping block (9) is arranged at the inner end of the adjusting column (8), and an adjusting knob (10) is arranged at the outer end.

2. A positioning fixture for precision parts processing according to claim 1, characterized in that: The outer surface of the clamping block (9) is provided with an anti-skid pad (11), and the surface of the anti-skid pad (11) is provided with anti-skid patterns (12).

3. A positioning fixture for precision parts processing according to claim 2, characterized in that: A snap-fit ​​groove (13) is provided on the inner side of the clamping block (9), and a snap-fit ​​block (14) is provided on one end of the adjusting column (8) away from the adjusting knob (10), wherein the snap-fit ​​block (14) and the snap-fit ​​groove (13) are snap-fitted with each other.

4. The positioning fixture for precision parts processing according to claim 1 is characterized in that: The installation limiting structure comprises a limiting block (15) arranged on the outside of the bottom of the clamping plate (4), and a limiting groove (16) is provided on the inner wall of the installation groove (2).

5. A positioning fixture for precision parts processing according to claim 4, characterized in that: The elastic connection structure comprises a connection column (17) arranged on the inner side of the clamping plate (4), a connection groove (18) is provided on the mounting column (3), the connection column (17) is slidably located in the connection groove (18), and a spring (19) is provided between the connection column (17) and the inner wall of the connection groove (18).

6. A positioning fixture for precision parts processing according to any one of claims 1 to 5, characterized in that: A fixing hole (20) is provided at the edge of the bottom plate (1), and a fixing bolt (21) is arranged in the fixing hole (20).

7. The positioning fixture for precision parts processing according to claim 1 is characterized in that: A protective pad (22) is provided at the bottom end of the bottom plate (1).

8. The positioning fixture for precision parts processing according to claim 1 is characterized in that: An anti-slip ridge (23) is provided at the upper end of the side wall of the clamping plate (4).

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