CN205415059U - Clamping device surges - Google Patents

Abstract

The utility model discloses a clamping device surges sets up the clamping device on the base, and this clamping device is driven by hydraulic pressure elevating gear, through bar connection between clamping device and the hydraulic pressure elevating gear, and the one end of depression bar and hydraulic pressure elevating gear rigid coupling, the hydraulic pressure elevating gear other end is connected with clamping device, and when hydraulic pressure elevating gear did the elevating movement, the depression bar was along with hydraulic pressure elevating gear does the elevating movement together to compress tightly the work piece. This device convenient operation, location accuracy, labour saving and time saving and high efficiency, the simple flexibility of hydraulic clamping device is pressed from both sides tightly steadily, has effectively shortened the supplementary process time of work piece, has improved the output of work piece, and its permission simultaneously has to be revealed on a small quantity, therefore not high to the required precision of the component that surges, the manufacturing of being convenient for.

Description

A hydraulic clamping device

【Technical field】

The utility model belongs to the field of machine tools, in particular to a hydraulic clamping device.

【Background technique】

With the continuous improvement of my country's economy and technology in recent years, my country's comprehensive national strength has become stronger and stronger, and people's living standards have become higher and higher. In the development of various manufacturing industries, the development of the automobile industry is particularly obvious. Although there is still a certain gap between us and developed countries, the gap is constantly narrowing with our continuous efforts. We cannot do without machine tools in the production of auto parts, but we have not made much changes to the machine tools commonly used in the production of auto parts, which not only limits our processing of parts, but also directly affects The development of our country's automobile manufacturing industry.

At present, we often use the CY-VMC850 machining center in the production of automobile steering knuckles. When processing automobile steering knuckles, we often use the bearing hole to fit a positioning pin for the clamping device at the bearing hole, and then Place the upper and lower platen and secure it with a suitable nut. Although the original fixture can ensure the normal production of the automobile steering knuckle, it is very cumbersome for fixing the parts, which is time-consuming and labor-intensive, and affects the production output of the steering knuckle at the same time. And once the clamping work is not done well, it may cause large errors in the production of parts, resulting in unnecessary waste.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a hydraulic clamping device which is easy to operate, accurate in positioning, and saves time and effort in view of the above-mentioned deficiencies in the prior art.

The utility model adopts the following technical solutions:

A hydraulic clamping device, including a clamping device arranged on a base, the clamping device is driven by a hydraulic lifting device, the clamping device and the hydraulic lifting device are connected by a pressure rod, and one end of the pressure rod is connected to the hydraulic lifting device Fixed connection, the other end of the hydraulic lifting device is connected with the clamping device. When the hydraulic lifting device moves up and down, the pressure rod moves up and down together with the hydraulic lifting device, thereby compressing the workpiece.

The hydraulic lifting device includes a hydraulic cylinder arranged on the base, and a piston is arranged in the hydraulic cylinder, and the piston is fixedly connected with a pressure rod through a piston rod arranged thereon.

Preferably, the upper and lower sides of the outer wall of the hydraulic cylinder are respectively provided with an upper oil port and a lower oil port for oil filling, and are used for adjusting the position of the piston.

The clamping device includes a positioning pin arranged on the base. The workpiece to be clamped is set on the positioning pin. A sleeve is installed in the bearing hole of the workpiece, and the sleeve compresses the workpiece under the action of the pressing rod.

Preferably, a pressing block is further arranged between the pressing rod and the sleeve, and the sleeve is pressed by the pressing block and the sleeve.

Preferably, the pressure block has a convex structure to facilitate cooperation with the sleeve and the positioning pin.

Preferably, the positioning pin has a stepped structure from bottom to top for mounting workpieces of different sizes.

Preferably, the workpiece comprises a steering knuckle.

Compared with the prior art, the utility model has at least the following beneficial effects: convenient operation, accurate positioning, time-saving, labor-saving and high efficiency, the hydraulic clamping device is simple and flexible, and the clamping is stable, which effectively shortens the auxiliary processing time of the workpiece and improves the At the same time, a small amount of leakage is allowed, so the precision of the hydraulic components is not high, and it is easy to manufacture.

The hydraulic clamping device of the utility model can realize the complete clamping of the workpiece, and in order to improve the precision of the workpiece during processing, the utility model is provided with a positioning pin on the workbench, so that the workpiece is set on the positioning pin, and the supporting seat Support, the rigidity of the workpiece is greatly increased.

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

【Description of drawings】

Fig. 1 is the structural representation of the utility model.

Among them: 1. Briquetting block; 2. Sleeve; 3. Work piece; 4. Locating pin; 5. Base; 6. Lower oil port; 7. Piston; 8. Upper oil port; 9. Hydraulic cylinder; 10. Piston rod 11. Pressure rod.

【detailed description】

The utility model provides a hydraulic clamping device, which adopts the bearing hole of the steering knuckle to be inserted into the large positioning pin on the clamp base, and the sleeve is put on, and then the pressure block is driven by the pressure bar to press down to make the bearing hole be fixed. Wherein the power device of the briquetting block and the pressing rod adopts a hydraulic device.

Please refer to Fig. 1, the utility model discloses a hydraulic clamping device, including a clamping device arranged on the base 5, the clamping device is driven by a hydraulic lifting device, between the clamping device and the hydraulic lifting device Connected through the pressure rod 11, one end of the pressure rod 11 is fixedly connected with the hydraulic lifting device, and the other end of the hydraulic lifting device is connected with the clamping device. thereby compressing the workpiece.

Specifically, the hydraulic lifting device includes a hydraulic cylinder 9 arranged on the base 5, and a piston 7 that can move up and down inside the hydraulic cylinder 9 is arranged. , the upper and lower sides of the outer wall of the hydraulic cylinder 9 are respectively provided with an upper oil port 8 and a lower oil port 6 for oil filling, and the hydraulic cylinder 9 is filled with oil through the upper oil port 8 and the lower oil port 6 respectively so that the piston 7 moves up and down in the hydraulic cylinder 9 move.

The clamping device includes a positioning pin 4 set on the base 5, and the workpiece 3 is set on the positioning pin 4. In order to facilitate the installation and processing of workpieces of different sizes, especially the processing of steering knuckle workpieces, the positioning pin 4 is designed as a stepped shape from bottom to top structure to meet the needs of different sizes. A sleeve 2 is arranged between the workpiece 3 and the positioning pin 4, the sleeve 2 is installed in the bearing hole of the workpiece 3, the sleeve 2 is used to fill the gap between the workpiece 3 and the positioning pin 4, and the workpiece is set on the positioning pin 4 Finally, the workpiece 3 is clamped on the positioning pin 4 through the sleeve 2, and the pressing bar 11 is provided with a convex structure pressing block 1 for pressing the sleeve 2, and the entire workpiece 3 is clamped by pressing the sleeve 2 through the pressing block 1. Clamp.

The clamping device and the hydraulic lifting device are moved by the horizontally arranged pressure rod 11, the height of the hydraulic cylinder 9 together with the piston rod 10 is consistent with the height of the positioning pin 4, and the lifting of the hydraulic rod 10 drives the pressure rod 11 to lift and compress. Or loosen the briquetting block 1 to clamp the entire workpiece 3, the hydraulic lifting device drives the pressure rod 11 to move by moving up and down, and the pressure rod 11 drives the clamping device to move up and down for clamping the workpiece 3.

When the machine tool starts to work, first fill the lower oil port 6 of the hydraulic cylinder with a certain amount of hydraulic oil, the piston 7 moves up, the piston rod 10 drives the pressure rod 11 and the pressure block 1 at the end of the pressure rod 11 to move up, and then the workpiece 3 sets into the positioning pin 4 on the base 5, put the sleeve 2 into the bearing hole of the workpiece 3, and then fill the hydraulic oil into the oil port 8 of the hydraulic cylinder 9, and under the action of the hydraulic oil, the piston 7 moves down At the same time, the piston rod 10 drives the pressure rod 11 and the pressure block 1 at the end of the pressure rod 11 to move downward to press the steering knuckle 3, and continue to fill the upward oil port 8 with hydraulic oil until the piston 7 is no longer moving or cannot move upward to the oil port 8 The workpiece is clamped when the hydraulic oil is applied. The clamping of other parts keeps the original clamping scheme unchanged.

Claims (8)

1. the clamping device that surges, it is characterized in that: include the clamping device being arranged on base (5), this clamping device is driven by hydraulic lift, connected by depression bar (11) between described clamping device and hydraulic lift, one end of described depression bar (11) is affixed with described hydraulic lift, the described hydraulic lift other end is connected with clamping device, when hydraulic lift moves up and down, described depression bar moves up and down together along with hydraulic lift, thus workpiece pressing.

One the most according to claim 1 is surged clamping device, it is characterized in that: described hydraulic lift includes the hydraulic cylinder (9) being arranged on described base (5), being provided with piston (7) in described hydraulic cylinder (9), described piston (7) is affixed with described depression bar (11) by the piston rod (10) being disposed thereon.

One the most according to claim 2 is surged clamping device, it is characterised in that described hydraulic cylinder (9) outer wall is separately provided for oil-filled upper hydraulic fluid port (8) and lower hydraulic fluid port (6) up and down, for the position of regulating piston.

One the most according to claim 1 is surged clamping device, it is characterized in that: described clamping device includes the alignment pin (4) being arranged on described base (5), workpiece to be clamped is enclosed within this alignment pin (4), sleeve (2), this sleeve (2) workpiece pressing under the effect of depression bar are installed in the dead eye of workpiece.

One the most according to claim 4 is surged clamping device, it is characterized in that: between described depression bar (11) and described sleeve (2), be additionally provided with briquetting (1), coordinate the described sleeve of compression (2) with sleeve (2) by described briquetting (1).

One the most according to claim 5 is surged clamping device, it is characterised in that: described briquetting (1) is that convex structure is easy to and described sleeve (2) and alignment pin (4) coordinate.

One the most according to claim 4 is surged clamping device, it is characterised in that: described alignment pin (4) is used for installing various sizes of workpiece (3) for ladder-type structure from top to bottom.

One the most according to claim 7 is surged clamping device, it is characterised in that: described workpiece (3) includes knuckle.