CN107838722A - A kind of multi-station clamp for micro part processing - Google Patents

Abstract

The invention relates to a multi-station fixture for processing micro-small parts, which comprises a base, a T-shaped block arranged under the base and can be placed in a T-shaped slot of a machine tool workbench, a connecting base and a fixation of the T-shaped block Bolts, grooves arranged on the upper end of the base and running through both sides, two sets of clamping station groups arranged on the upper end of the base and placed at intervals along the length direction of the groove; each set of clamping station groups includes There are clamping stations on both sides of the groove and corresponding to the shape of the miniature parts; a locking mechanism is provided between each assembly clamping station group in the groove; the present invention can clamp multiple miniature parts at one time, Moreover, the assembly and disassembly are fast and the positioning accuracy is high, thereby improving work efficiency and processing quality, and reducing production cost and scrap rate.

Description

A Multi-station Fixture Used for Micro Parts Processing

technical field

The invention relates to the field of machine tool fixtures, in particular to a multi-station fixture used for processing micro-small parts.

Background technique

Machine tool fixture is a device on the machine tool for clamping the workpiece and guiding the tool. Accurate positioning of the workpiece is its main function. Secondly, there is a correct position between the machine tool and the tool, which does not interfere with the processing and can make the workpiece in a certain direction. Clamping and fixing; the current conventional clamps include vise, pressure plate, chuck, etc., but due to the small structure of the micro-miniature parts, small machining allowance, and high precision requirements, when using the above-mentioned conventional clamps, it is easy to cause waste products due to insufficient positioning accuracy The efficiency is high, and only one workpiece can be processed at a time, resulting in low processing efficiency and increased production costs.

Contents of the invention

The object of the present invention is to provide a multi-station fixture for processing micro-miniature parts in order to overcome the deficiencies of the prior art, which can clamp a plurality of micro-miniature parts at one time, and is quick to assemble and disassemble, and has high positioning accuracy, thereby improving work efficiency. Efficiency, reduce production cost and scrap rate.

In order to achieve the above object, the technical solution adopted by the present invention is: a multi-station fixture for processing micro-small parts, including a base, a T-shaped block arranged under the base and placed in a T-shaped slot of the machine tool table , the fixing bolts connecting the base and the T-block, the grooves set on the upper end of the base and running through both sides, two sets of clamping stations set on the upper end of the base and placed at intervals along the length direction of the groove; The above-mentioned clamping station groups all include clamping stations arranged on both sides of the groove and corresponding to the shape of the miniature parts; a locking mechanism is provided between each assembly clamping station group in the groove; the described The locking mechanism includes two deformation blocks that can be shifted to the corresponding clamping station, and a pressure block that is set between the two deformation blocks and is screwed to the base through locking bolts; the cross section of the pressure block is wide at the top and wide at the bottom Narrow trapezoidal shape, deformation blocks are all provided with slopes matching with pressing blocks.

Preferably, both sides of the bottom of the groove are provided with vertically placed long grooves; The locking block connected with the upper end of the elastic piece in the groove.

Preferably, the locking block, the elastic piece and the base are integrally formed.

Preferably, a square slot is provided in the middle of the upper end of the base; a through hole is provided in the bottom of the square slot; the fixing bolt is screwed to the T-block through the through hole.

Preferably, two sets of clamping stations are arranged symmetrically on both sides of the square groove.

Preferably, fixing grooves are respectively provided on both sides of the base.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

The multi-station fixture for processing micro-miniature parts described in the present invention can clamp a plurality of micro-miniature parts at one time, and has fast assembly and disassembly and high positioning accuracy, thereby improving work efficiency and processing quality, and reducing production costs and waste products Rate.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the structural schematic diagram of the multi-station fixture that is used for micro-miniature part processing according to the present invention;

Accompanying drawing 2 is the exploded view of the multi-station fixture that is used for micro-miniature part processing according to the present invention;

Accompanying drawing 3 is the schematic diagram of the integral molding structure of the base and the deformation block in the present invention;

Accompanying drawing 4 is the working schematic diagram of the multi-station fixture that is used for micro-miniature part processing according to the present invention;

Accompanying drawing 5 is the partial enlarged view of A place in Fig. 4.

Among them: 1. Base; 11. Clamping station; 12. Square groove; 13. Through hole; 14. Fixed groove; 15. Long groove; 16. Groove; 2. Press block; 3. Locking bolt ; 4, T-shaped block; 5, fixing bolt; 6, deformation block; 61, locking block; 62, elastic piece; 7, workpiece; 8, machine tool table.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing 1-5 is the multi-station fixture that is used for the processing of miniature parts described in the present invention, comprises base 1, is arranged under base 1 and can be placed in the T-shaped block in the T-shaped slot of machine table 8 4. The fixing bolts 5 connecting the base 1 and the T-shaped block 4, the grooves 16 arranged on the upper end of the base 1 and running through both sides, two sets of devices arranged on the upper end of the base 1 and placed at intervals along the length direction of the groove 16 Clamping station group; each group of said clamping station group includes clamping stations 11 arranged on both sides of the groove 16 and corresponding to the shape of the miniature parts; Locking mechanisms are provided between them; the locking mechanism includes two deformation blocks 6 that can be shifted to the corresponding clamping station 11, and is arranged between the two deformation blocks 6 through the threaded locking bolt 3 and the base 1. Connected pressing block 2; the section of the pressing block 2 is trapezoidal with a wide top and a narrow bottom, and the deformation blocks 6 are all provided with slopes that cooperate with the pressing block 2.

Further, both sides of the bottom of the groove 16 are respectively provided with vertically placed elongated grooves 15; 62. The locking block 61 arranged in the groove 16 and connected to the upper end of the elastic sheet 62 can quickly reset the locking block 61 through the elastic sheet 62 to facilitate the installation of the workpiece 7 .

Further, the locking block 61, the elastic sheet 62 and the base 1 are integrally formed by wire cutting, which not only reduces the cost of the fixture, but also facilitates the control of the gap between the locking block and the workpiece, and can press the workpiece with a slight deformation. Therefore, the precision is higher and the disassembly and assembly are convenient.

Further, the middle part of the upper end of the base 1 is provided with a square groove 12; the bottom of the square groove 12 is provided with a through hole 13; the fixing bolt 5 is threaded through the through hole 13 and the T-shaped block 4, which is convenient for loosening and fixing The bolt 5 adjusts the position of the base 1, and because the square groove is arranged in the middle of the upper end of the base, the force on the base 1 is more uniform and the fixation is more secure.

Further, the two sets of clamping station groups are respectively arranged symmetrically on both sides of the square groove 12, so that the fixture structure is more compact and the weight is smaller. Among them, the clamping station groups are not limited to two groups, and four or six groups can also be set. group, etc., and are arranged symmetrically on both sides of the square groove 12 respectively, which all belong to the protection scope of this scheme.

Further, the two sides of the base 1 are respectively provided with fixing grooves 14, which are convenient for further fixing the base 1 through the press plate of the machine tool, so as to prevent the base 1 from shifting during processing and affect the processing accuracy.

When working: 1. Place the T-shaped block 4 in the T-shaped groove of the machine tool workbench 8, and initially fix the base 1 on the machine tool workbench 8 through the fixing bolt 5, or use the pressure plate to press the base 1 two times. The fixing groove 14 on the side further fixes the base 1, making the fixing more secure;

2. Make a watch to align the base 1 and finally fix it, so that the base 1 meets the machining requirements of the machine tool, and process the corresponding clamping stations 11 according to the shape and structure of the workpiece 7, which can reduce the repeated positioning error of the fixture and improve the processing efficiency. precision;

3. Place the four workpieces 7 in the clamping station 11 respectively (the three sides and the bottom surface of the clamping station 11 are respectively attached to the workpiece 7, so that the clamping is reliable and the positioning is accurate), and the wrench is used to tighten the two respectively. A locking bolt 3 is used to move the pressing block 2 downward, and the deforming blocks 6 on both sides are pressed to deform to both sides (offset toward the clamping station 11), and the workpiece 7 is clamped by the side of the deforming block 6, so that the workpiece 7 are respectively fixed in the clamping station 11;

4. Start to process four workpieces 7 in sequence;

5. Unscrew the two locking bolts 3, so that the pressing block 2 no longer presses the deformed block 6, and takes out four processed workpieces 7;

6. Repeat the above steps 3-5 until all workpieces 7 are processed in batches.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

The multi-station fixture for processing micro-miniature parts described in the present invention can clamp a plurality of micro-miniature parts at one time, and has fast assembly and disassembly and high positioning accuracy, thereby improving work efficiency and processing quality, and reducing production costs and waste products Rate.

The above are only specific application examples of the present invention, and do not constitute any limitation to the protection scope of the present invention. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (6)

1. A kind of 1. multi-station clamp for micro part processing, it is characterised in that：Comprising pedestal, be arranged on can under pedestal Be placed in platen T-slot T-shaped piece, connection pedestal and T-shaped piece of fixing bolt, be arranged on pedestal upper end and through two The groove of side, two groups be arranged on pedestal upper end and the clamping station group being spaced apart along groove length direction；Clamping described in every group Station group includes being arranged on groove both sides and clamping station corresponding with micro part shape；In every assembling in the groove Retaining mechanism is provided between folder station group；The retaining mechanism includes two pieces can be to the deformation of corresponding clamping station skew Block, it is arranged on the briquetting being connected between two pieces of deformation blocks by clamping screw with base thread；Present width in the section of the briquetting Under it is narrow trapezoidal, deformation block is provided with the inclined-plane coordinated with briquetting.
2. 2. the multi-station clamp according to claim 1 for micro part processing, it is characterised in that：The groove Two bottom sides are respectively arranged with the strip grooves placed vertically；The deformation block includes being vertically arranged in strip grooves and lower end and length The flexure strip of bar trench bottom connection, it is arranged on the latch segment being connected in groove with flexure strip upper end.
3. 3. the multi-station clamp according to claim 2 for micro part processing, it is characterised in that：The locking Block, flexure strip and pedestal are formed in one.
4. 4. the multi-station clamp for being used for micro part processing according to claim 1 or 2 or 3, it is characterised in that：It is described The upper center of pedestal is provided with square groove；The bottom of the square groove is provided with through hole；The fixing bolt passes through through hole and T-shaped piece Threaded connection.
5. 5. the multi-station clamp according to claim 4 for micro part processing, it is characterised in that：Dress described in two groups Folder station group is symmetrically arranged at the both sides of square groove.
6. 6. the multi-station clamp according to claim 5 for micro part processing, it is characterised in that：The pedestal Both sides are also respectively provided with fixing groove.