CN103465068B - A kind of lower planker is to milling both ends of the surface fixture - Google Patents

Abstract

The invention relates to a fixture for milling both ends of a lower carriage, comprising a base, a pressing block, and a connecting device. Two opposite identical spacers and positioning pins A, A, and A are fixedly arranged on the upper end of the base for placing workpieces to be processed Positioning pin B, positioning pin C, the connection device is arranged between the base and the pressure block, the connection device includes a support rod, a joint seat, a joint rod, and the left and right sides of the base are respectively fixed with Vertical support rod and joint seat, the upper end of the support rod passes through the groove A and is connected with the pin shaft of the pressing block, the pin shaft on the joint seat is connected with the joint rod, and the upper end of the joint rod passes through the groove A Groove B, and the upper end of the joint rod is sleeved with a nut against the top surface of the pressing block. In the present invention, the buffer block arranged on the pressing block is used to press the lower carriage, so that it can be processed more conveniently, the precision of the lower carriage can be improved during the processing process, and the error can be minimized.

Description

A jig for milling both ends of the lower carriage

technical field

The invention relates to a fixture for milling both ends, in particular to a fixture for milling two ends of a lower carriage.

Background technique

The lower carriage (as shown in Figure 1, the lower carriage is a block structure with a positioning slot that penetrates up and down in the middle) is an important supporting part on the machine tool, and its dynamic performance directly affects the accuracy and production efficiency of the workpiece, so Its accuracy is particularly important in the process of production and processing. When milling both ends of the face, the precision requirements for the processing of the end face are very high, which affects the final product. Most of the existing processing methods use fixtures to Processing, but the accuracy of the end faces on both sides cannot be well guaranteed.

Contents of the invention

The technical problem to be solved by the present invention is to provide a jig for milling both ends of the lower pallet, which can well solve the problem of not fastening the processing parts during the production of the lower pallet. The accuracy of the end faces on both sides is inaccurate, and finally products that do not meet the specifications are produced.

In order to solve the above problems, the technical solution of the present invention is a fixture for milling both ends of the lower carriage, including a base, a pressing block, and a connecting device. The same spacer and positioning pin A, positioning pin B, and positioning pin C, the positioning pin A and the positioning pin B are against the same side of the workpiece to be processed, and the positioning pin C passes through the workpiece to be processed. The upper and lower positioning grooves; the left and right ends of the pressure block are respectively provided with grooves A and B that penetrate up and down, and the connection device is arranged between the base and the pressure block. The connection device includes a support Rod, joint seat, joint rod, the left and right sides of the base are respectively fixed with vertical support rods and joint seats, the upper end of the support rod passes through the groove A and is connected with the pin of the pressing block, and the joint The pin shaft on the seat is connected with a joint rod, the upper end of the joint rod passes through the groove B, and the upper end of the joint rod is covered with a nut against the top surface of the pressing block.

Further, the pressing block is provided with a hole A passing through front and back, and a groove C is provided at the middle position of the bottom surface of the pressing block, and the hole A penetrates the side wall of the groove C.

Further, a buffer block is provided between the pressure block and the workpiece to be processed, and the buffer block is connected to the pin shaft of the pressure block, and the buffer block includes a straight rod and a pressing device connected to the lower end of the straight rod, The upper end of the straight rod is provided with a hole B passing through its outer circular surface, the upper end of the straight rod extends into the groove C, and the pressing block is provided with a pin shaft through the hole A and the hole B.

Further, the pressing device includes a connecting rod and a pair of vertical side plates respectively connected with screws on both sides of the supporting rod, and the connecting rod is connected with the straight rod by screws.

Compared with the prior art, the present invention can process the lower carriage more conveniently by pressing the buffer block on the pressing block to prevent the error from being caused during the processing. At the same time, the cooperation between the joint seat and the hitch rod makes it more convenient to equip the lower carriage, which can improve the precision of the lower carriage during processing and minimize the error.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a partial sectional view of the present invention.

Fig. 3 is a top view of the structure of the present invention.

Fig. 4 is a partial sectional view of the present invention.

Fig. 5 is a partial sectional view of the present invention.

Description of main component symbols

Base 1 Press block 2 Buffer block 4 Pad block 11 Locating pin A12 Locating pin B13 Locating pin C14 Locating groove 141 Groove A21 Groove B22 Hole A23 Groove C24 Pin shaft 25 Support rod 31 Joint seat 32 Joint rod 33 Nut 331 straight rod 41 holes B411 connecting rod 421 side plate 422

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5, a fixture for milling both ends of the lower carriage includes a base 1, a pressing block 2, and a connecting device. Place the two opposite identical pads 11 and positioning pin A12, positioning pin B13, and positioning pin C14 of the workpiece to be processed. The positioning pin A12 and positioning pin B13 are against the same side of the workpiece to be processed, and the positioning pin C14 passes through the same side of the workpiece to be processed. The preset positioning grooves 141 that penetrate up and down on the lower carriage for processing can fix the lower carriage to be processed by using these three positioning pins, so that the error during processing is minimized. The briquetting block 2 is provided with a hole A23 through the front and back, and a groove C24 is provided in the middle of the bottom surface of the briquetting block 2, and the hole A23 runs through the side wall of the groove C24. The pin shaft is connected to the buffer block 4, and the buffer block can be used to better press the lower pallet to be processed, so as to prevent the error caused by the unbalanced force of the lower pallet during processing. The buffer block 4 includes a straight rod 41 and a straight rod 41 The pressing device connected to the lower end, the upper end of the straight rod 41 is provided with a hole B411 through its outer circular surface, and the upper end of the straight rod 41 extends into the groove C24, and the pressing block 2 is provided with a through hole A23 and a hole B411. Bearing pin 25, hold-down device comprises connecting rod 421 and a pair of vertical side plates 422 connected with the both sides screws of support rod 421 respectively, connecting rod 421 is connected with straight rod 41 screws, and the left and right ends of briquetting block 2 respectively have Groove A21 and groove B22 through up and down. The connecting device is arranged between the base 1 and the briquetting block 2, and the connecting device includes a support rod 31, a joint seat 32, and a joint rod 33. The left and right sides of the base 1 are respectively fixed with vertical support rods 31 and joint seats. 32. The upper end of the support rod 31 passes through the groove A21 and is connected with the pin shaft of the pressure block 2. The pin shaft on the joint seat 32 is connected with the joint rod 33. The upper end of the joint rod 33 passes through the groove B22, and the joint rod The 33 upper ends are covered with the nut 331 that pushes against the upper top surface of the briquetting block 2, and the nut 331 on the joint seat, the joint bar and the joint bar can make the processing operation more convenient.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equal changes and improvements made according to the application scope of the present invention should still belong to the scope of the patent of the present invention.

Claims (2)

1. A fixture for milling both ends of the lower carriage, characterized in that it includes a base (1), a pressing block (2), and a connecting device, and the upper end surface of the base (1) is fixedly provided with a holder for placing workpieces to be processed. Two opposite identical pads (11) and alignment pin A (12), alignment pin B (13), alignment pin C (14), described alignment pin A (12) and described alignment pin B (13) On the same side of the workpiece to be processed, the positioning pin C (14) passes through the preset positioning groove (141) that penetrates up and down the workpiece to be processed; Groove A (21) and groove B (22), the connection device is arranged between the base (1) and the pressure block (2), the connection device includes a support rod (31), a joint Seat (32), joint bar (33), base (1) left and right sides are respectively fixedly provided with vertical support bar (31) and joint seat (32), and the upper end of support bar (31) passes groove A (21) is connected with the pin shaft of the briquetting block (2), and the pin shaft on the joint seat (32) is connected with a joint rod (33), and the upper end of the joint rod (33) passes through the groove B ( 22), and the upper end of the joint rod (33) is covered with a nut (331) against the upper surface of the briquetting block (2); the briquetting block (2) is provided with a hole A (23) passing through front and rear, A groove C (24) is provided at the middle position of the bottom surface of the briquetting block, and the hole A (23) runs through the sidewall of the groove C (24); between the briquetting block (2) and the workpiece to be processed, a buffer block (4), and the buffer block is connected with the press block pin, the buffer block (4) includes a straight rod (41) and a pressing device connected to the lower end of the straight rod (41), the straight rod ( 41) The upper end is provided with a hole B (411) penetrating through its outer circular surface, the upper end of the straight rod (41) extends into the groove C (24), and the pressing block (2) is provided with a through hole B (411). The pin shaft (25) of hole A (23) and hole B (411). 2. A fixture for milling both ends of the lower carriage according to claim 1, characterized in that: the pressing device includes a connecting rod (421) and a pair of vertical screws respectively connected to the two sides of the supporting rod. The side plate (422), the connecting rod (421) is screwed to the straight rod (41).