CN203611034U - Double-head turning and rotating clamp - Google Patents

Abstract

The utility model discloses a double-head turning and rotating clamp, comprising a workbench (1), a first clamping head, a second clamping head, a motor (2) and a machining piece rotation guiding device, wherein the first clamping head and the second clamping head are arranged in a guide rail (1.1) of the workbench (1) in a sliding matching manner; the machining piece rotation guiding device is arranged on the workbench (1) between the first clamping head and the second clamping head; the motor (2) is fixedly arranged on the workbench (1); the motor (2) is connected with the machining piece rotation guiding device. The double-head turning and rotating clamp disclosed by the utility model has the advantages of high machining efficiency and good coaxiality.

Description

Double head turning and turning fixture

technical field

The utility model relates to a turning fixture for processing step shafts, in particular to a double-head turning parallel turning fixture.

Background technique

The turning fixtures of the prior art are all single-head fixtures. That is, when processing the processed shaft, first fix one end of the processed shaft on the single-head fixture, and then turn the other end of the processed shaft; after processing one end of the processed shaft, remove the shaft and reverse it, and then Turning is performed on the unmachined end of the machined shaft. The turning fixture of the above structure has the following disadvantages in actual use: since only one end of the machined shaft can be processed at a time, the processing time of the single-head fixture is long and the efficiency is low; One end, after processing, clamps the other end of the processed shaft, so when replacing the clamping end, the concentricity of the shaft cannot be guaranteed, resulting in poor coaxiality of the processed product. Therefore, based on the above reasons, there is an urgent need for a double-head turning fixture with high processing efficiency and good coaxiality to solve the above problems.

Utility model content

The technical problem to be solved by the utility model is to overcome the above defects of the prior art, and provide a double-head turning and turning fixture with high processing efficiency and good coaxiality.

The technical scheme of the present invention is to provide a double-head turning and rotating fixture, including a workbench, a first clamping head, a second clamping head, a motor and a workpiece guiding device, and the first clamping head and the second clamping head are slidingly fitted in the guide rail on the workbench; the workpiece guide device is arranged on the workbench between the first clamping head and the second clamping head; the motor is fixed On the workbench; the motor is connected with the workpiece guide device.

The structure of the first clamping head and the second clamping head is the same: the first clamping head and the second clamping head all include a slider, a fixed block, a return spring and a top shaft, and the The sliding block is slidably fitted in the guide rail on the workbench; one end of the top shaft is slidably fitted in the fixed block, and the return spring is arranged between the top shaft and the fixed block; the other end of the top shaft is a Conical head; the conical head of the first clamping head is opposite to the conical head of the second clamping head.

The workpiece guide device includes a support frame, a connecting sleeve, a bearing, a workpiece sleeve and a first synchronous pulley; the bottom end of the support frame is fixed on the workbench; There is a through hole arranged horizontally, the outer circular surface of the bearing is closely matched with the inner wall of the through hole; the inner circular surface of the bearing is closely matched with the outer circular surface of the connecting sleeve; the outer circular surface of the connecting sleeve is also Tightly fit with the inner surface of the first synchronous pulley; a radially arranged L-shaped power transmission pin is also arranged in the connecting sleeve; the workpiece sleeve is sleeved in the connecting sleeve; the outer surface of the workpiece sleeve A screw is provided on the circular surface, and a linkage column is provided on the outer circular surface of the workpiece sleeve opposite to the screw.

The motor is provided with a second synchronous pulley, and the first synchronous pulley is connected to the second synchronous pulley through a belt.

After adopting the above structure, the utility model has the following advantages compared with the prior art:

When the double-head turning and turning fixture of the utility model is working, firstly, the processed shaft passes through the connecting sleeve, and then the power transmission pin radially resists the processed shaft, and then the first clamping head and the second clamping head are used to The head axially clamps the processed shaft, and then the motor starts to drive the synchronous pulley to rotate, and the connecting sleeve rotates to enter the tool to process both sides of the processed shaft. Because both ends of the shaft can be processed at one time, the utility model has a short processing time and high efficiency of the double-head turning and turning fixture. Since the shafts of the first clamping head and the second clamping head respectively fix the processed shaft during processing, without replacing the clamping end, the concentricity of the processed shaft is guaranteed, so that the coaxiality of the processed product is relatively high. good.

Description of drawings

Fig. 1 is a structural schematic diagram of the double-head turning parallel turning fixture of the present invention.

Figure 2 is a cross-sectional view of the connecting sleeve and the power transmission pin.

Fig. 3 is a cross-sectional view of the clamping head.

As shown in the figure 1, workbench, 1.1, guide rail, 2, motor, 3, slide block, 4, top shaft, 5, conical head, 6, support frame, 7, connecting sleeve, 8, bearing, 9, The first synchronous pulley, 10, through hole, 11, power transmission pin, 12, the second synchronous pulley, 13, belt, 14, fixed block, 15, return spring, 16, workpiece cover, 17, screw, 18, linkage column.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is a double-head turning parallel turning fixture, which includes a workbench 1, a first clamping head, a second clamping head, a motor 2 and a workpiece guiding device, Both the first clamping head and the second clamping head are slidably fitted in the guide rail 1.1 on the workbench 1. In this embodiment, there are two guide rails 1.1, that is, the first clamping head and the second clamping head. Each head is provided with two sliding blocks (not shown in the figure); the workpiece guide device is arranged on the workbench 1 between the first clamping head and the second clamping head; the motor 2 It is fixed on the workbench 1; the motor 2 is connected with the workpiece guiding device.

The structure of the first clamping head and the second clamping head is the same: the first clamping head and the second clamping head all include a slider 3, a fixed block 14, a return spring 15 and a top shaft 4. The slider 3 is slidably fitted in the guide rail 1.1 on the workbench 1; one end of the top shaft 4 is slidably fitted in the fixed block 14, and the return spring 15 is set on the top shaft 4 and the fixed block 14 Between; the other end of the top shaft 4 is a conical head 5; the conical head 3 of the first clamping head is opposite to the conical head 3 of the second clamping head.

The workpiece guiding device includes a support frame 6, a connecting sleeve 7, a bearing 8, a workpiece cover 16 and a first synchronous pulley 9; the bottom end of the support frame 6 is fixed on the workbench 1; The support frame 6 is provided with a transversely arranged through hole 10, the outer circular surface of the bearing 8 is closely matched with the inner wall of the through hole 10; tight fit; the outer circular surface of the connecting sleeve 7 is also tightly fitted with the inner surface of the first synchronous pulley 9; the connecting sleeve 7 is also provided with a radially arranged L-shaped power transmission pin 11, so The workpiece cover 16 is sleeved in the connecting sleeve 7; a screw 17 is provided on the outer surface of the workpiece cover 16, and a linkage column 18 is provided on the outer surface of the workpiece cover 16 opposite to the screw 17.

The motor 2 is provided with a second synchronous pulley 12 , and the first synchronous pulley 9 is connected to the second synchronous pulley 12 through a belt 13 .

When the double-head turning and turning fixture of the utility model is working, the processed shaft is first passed through the connecting sleeve 7, and then the power transmission pin 11 is radially pressed against the processed shaft, and then the first clamping head and the second clamping head are used The clamping head axially clamps the processed shaft, and then the motor 2 starts to drive the synchronous pulley to rotate, and the connecting sleeve 7 rotates to enter the tool to process both sides of the processed shaft.

The above only illustrates the best embodiments of the present utility model, but should not be construed as a limitation on the claims. All the various changes made within the scope of protection of the independent claims of the utility model are within the scope of protection of the utility model.

Claims (4)

1. a double end turning turn fixture, it is characterized in that: comprise that workbench (1), the first clamping head, the second clamping head, motor (2) and workpiece lead rotary device, the first described clamping head and the second clamping head are all slidably fitted in the guide rail (1.1) on workbench (1); Described workpiece is led rotary device and is located on the workbench (1) between the first clamping head and the second clamping head; Described motor (2) is fixed on workbench (1); Described motor (2) is led rotary device with workpiece and is connected.

2. a kind of double end turning according to claim 1 turn fixture, it is characterized in that: the first described clamping head is identical with the structure of the second clamping head: the first described clamping head and the second clamping head include a slide block (3), fixed block (14), back-moving spring (15) and an apical axis (4), described slide block (3) is slidably fitted in the guide rail (1.1) on workbench (1); One end of described apical axis (4) is slidably fitted in fixed block (14), and described back-moving spring (15) is located between apical axis (4) and fixed block (14); The other end of described apical axis (4) is a conical head (5); The conical head (3) of described the first clamping head is relative with the conical head (3) of the second clamping head.

3. a kind of double end turning according to claim 1 turn fixture, is characterized in that: described workpiece is led rotary device and comprised a bracing frame (6), a branch sleeve (7), a bearing (8), workpiece cover (16) and the first synchronous pulley (9); The bottom of support frame as described above (6) is fixed on workbench (1); Described bracing frame (6) is provided with the through hole (10) of a horizontally set, the inwall tight fit of the periphery of described bearing (8) and through hole (10); The periphery tight fit of the inner headed face of described bearing (8) and branch sleeve (7); The periphery of described branch sleeve (7) also with the inner surface tight fit of the first synchronous pulley (9); In described branch sleeve (7), be also provided with the L shaped power radially arranging and carry pin (11); Described workpiece cover (16) is socketed in branch sleeve (7); The periphery of described workpiece cover (16) is provided with a screw (17), and the periphery of the described workpiece cover (16) relative with screw (17) is provided with a linkage post (18).

4. a kind of double end turning according to claim 3 turn fixture, is characterized in that: described motor (2) is provided with the second synchronous pulley (12), described the first synchronous pulley (9) is connected by belt (13) with the second synchronous pulley (12).

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