Center water outlet water spraying block

Abstract

The utility model provides a center water outlet water spraying block, and belongs to the technical field of machine tool accessories. The water outlet seat solves the problem that the water outlet direction of an existing water outlet seat is tedious and inconvenient to adjust when products are replaced and machined on a lathe. The center water outlet water spraying block comprises a main body and a spraying head, a through water through hole is formed in the main body, the spraying head comprises a fixing sleeve inserted and fixed to the end opening of the water through hole and a spraying pipe penetrating through the fixing sleeve and capable of rotating, and the two ends of the spraying pipe extend out of the fixing sleeve and are in a conical shape with the outer diameter decreasing in the direction of extending out of the fixing sleeve. The outer end of the spray pipe extends out of the body, a spherical hinge part is arranged in the middle of the spray pipe, and a spherical cavity matched with the spherical hinge part is formed in the fixing sleeve. After the center water outlet water spraying block is installed on a lathe, when a product is replaced for machining, only the water outlet direction needs to be adjusted by rotating the spraying pipe, the water spraying block does not need to be replaced, and the operation of adjusting the water outlet direction is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lathe accessory technical field relates to a center water -out water spray block. BACKGROUND

[0002] Lathe is the equipment of workpiece turning, including bed, spindle box, drag plate assembly, tailstock and tool holder etc.. Spindle box is fixedly connected on the bed, and the spindle box is provided with a main shaft, the front end of the main shaft is out of the spindle box and is fixed with a chuck, the rear end of the main shaft is out of the spindle box and is fixed with a belt pulley, the belt pulley is connected with motor, and the motor drives the belt pulley to rotate through the belt, so as to drive the main shaft to rotate. The main shaft is also provided with a pull tube, the front end of the pull tube is connected with the chuck, and the rear end of the pull tube is connected with the oil cylinder, and the oil cylinder drives the chuck to act through the pull tube, so as to realize the chuck clamping workpiece and loosening workpiece.

[0003] When the lathe turns the inner hole of the workpiece, the temperature of the workpiece will rise, which will cause the workpiece to deform easily during the machining process, and the chips will easily adhere to the workpiece, which will cause the chips to be difficult to discharge. In order to cool the workpiece and clean the chips, a pipe or channel is generally arranged at the center of the main shaft for water. Such as the patent literature with central water outlet lathe spindle device [application number: CN200720140711.4; publication number: CN 201023134 Y] is disclosed, including main shaft seat, spray pipe installed in the main shaft seat, water injection seat and water outlet seat arranged at both ends of the spray pipe and connecting seat arranged around the spray pipe. The main shaft seat includes a seat body, a main shaft installed in the seat body, a hollow pull tube installed in the main shaft, and a hollow chuck assembled and connected at one end of the seat body. The seat body has a chuck end and a base end arranged at intervals, and the main shaft is provided with an axial hole. The pull tube is arranged along the axial hole and has an axial through pipe, and the chuck is arranged on the chuck end. The spray pipe is arranged along the pipe of the pull tube, including a water outlet end adjacent to the chuck end and a water inlet end adjacent to the base end. The water injection seat is arranged at the water inlet end of the spray pipe, including a water injection port formed on the outer surface of the water injection seat and a water injection hole extending inward from the water injection port and connected with the spray pipe. The water outlet seat is arranged at the water outlet end of the spray pipe, including a water outlet port formed on the end surface of the water outlet seat and an outlet hole extending inward from the water outlet port and connected with the spray pipe.

[0004] The water outlet is generally arranged on the water outlet seat in the axial direction, and when the product with a small inner hole is machined, the water can still be sprayed to the machining position on the inner hole wall of the product after being sprayed out of the water outlet seat in the axial direction, so as to cool and remove the chips of the machining position. However, when the lathe is replaced by the product with a large inner hole for machining, most of the water sprayed out of the water outlet seat in the axial direction will directly pass through the inner hole of the product and cannot be sprayed to the machining position of the inner hole of the product, resulting in poor cooling and chip removal effect. Therefore, at present, different water outlet seats with different water outlet directions are prepared according to the size of the inner hole of different products, and when the lathe is replaced by the product for machining, the corresponding water outlet seat needs to be replaced, so that the water sprayed by the water outlet can be sprayed to the machining position of the inner hole of the product. The water outlet seat is fixed on the inner side of the chuck, and when the water outlet seat is replaced, the clamping jaw on the chuck needs to be expanded outward first, then the fastener for fixing the water outlet seat is disassembled, the water outlet seat is taken out, and then the new water outlet seat is reassembled and fixed by the fastener. The operation of replacing the water outlet seat is complicated and inconvenient, that is, the operation of adjusting the water outlet direction is complicated and inconvenient. Practical new type content

[0005] The utility model discloses a center water outlet water spray block, and solves the technical problem of how to conveniently adjust the water outlet direction of the water outlet block when the lathe is replaced by the product for machining.

[0006] The utility model discloses a center water outlet water spray block, and solves the technical problem of how to conveniently adjust the water outlet direction of the water outlet block when the lathe is replaced by the product for machining.

[0007] A center water outlet water spray block, comprising a main body, the main body is provided with a water through hole, characterized by further comprising a spray head, the spray head comprises a fixed sleeve inserted and fixed at the water through hole port and a spray pipe rotatably arranged in the fixed sleeve, both ends of the spray pipe extend out of the fixed sleeve and are conical in shape with a diameter decreasing along the direction of extending out of the fixed sleeve, and the outer end of the spray pipe extends out of the main body, the middle part of the spray pipe is a spherical hinge part, and the fixed sleeve is provided with a spherical cavity matched with the spherical hinge part.

[0008] The center water outlet spray block is used to replace the water outlet seat in the prior art, and the center water outlet spray block is fixed inside the chuck, and the spray head is arranged outward, and the spray pipe is communicated with the other port of the water passage hole of the center water outlet spray block. Since the middle part of the spray pipe is a spherical hinge part, and the fixing sleeve has a spherical cavity matched with the spherical hinge part, the spray pipe and the fixing sleeve form a spherical hinge joint structure, the spray pipe can rotate around the center of the spherical cavity on the fixing sleeve with multiple degrees of freedom, so that the orientation of the spray pipe is changed, that is, the direction of water outlet is changed; since the two ends of the spray pipe extend out of the fixing sleeve, the rotation angle of the spray pipe can be limited, so that the port of the spray pipe is prevented from rotating into the fixing sleeve to cause water to be unable to be sprayed, and the center water outlet spray block can spray water to cool and remove chips; meanwhile, the two ends of the spray pipe are conical and the outer diameter of the two ends decreases along the direction of extending out of the fixing sleeve, compared with the structure that the two ends of the spray pipe are cylindrical, the rotation angle of the spray pipe can be increased, and the adjustment of the water outlet direction of the spray pipe is facilitated; and the outer end of the spray pipe, that is, the end of the spray pipe extending out of the main body outward, not only can reduce the limitation of the main body on the rotation angle of the spray pipe, but also can prevent the water sprayed obliquely from being blocked by the main body, so that the water can be smoothly sprayed to the machining position in the hole of the product to cool and remove chips.

[0009] Therefore, after the center water outlet spray block is installed on the lathe, when the product is replaced for machining, the water outlet direction can be adjusted only by rotating the spray pipe, and the spray block does not need to be replaced, so that the operation of adjusting the water outlet direction is convenient.

[0010] In the center water outlet spray block, a shoulder is arranged on the hole wall surface of the water passage hole, and the inner end surface of the fixing sleeve abuts against the shoulder. The shoulder has an axial positioning effect on the fixing sleeve, so that the fixing sleeve is prevented from being inserted into the water passage hole too much to affect the rotation of the spray pipe, and the rotation direction of the spray pipe, that is, the water outlet direction, is facilitated to be adjusted conveniently.

[0011] In the center water outlet spray block, the outer end of the fixing sleeve extends out of the main body. In this way, the outer end of the spray pipe is closer to the clamping jaw of the chuck, so that the angle of the spray pipe is more conveniently adjusted.

[0012] In the center water outlet spray block, a sealing ring is arranged between the spherical hinge part of the spray pipe and the fixing sleeve. The sealing ring can improve the sealing property between the spherical hinge part and the fixing sleeve on one hand, and improve the friction resistance between the spherical hinge part and the fixing sleeve on the other hand, so that the spray pipe is prevented from rotating under the impact of water flow, the spray pipe is kept aligned with the workpiece after the water outlet direction is adjusted, and the cooling and chip removal effects on the workpiece are achieved.

[0013] In the center water outlet spray block, a protruding connecting ring is integrally arranged on the outer side surface of the main body, and the connecting ring is provided with a connecting hole and a positioning pin hole.

[0014] The bolt can fix the connecting ring on the base of the chuck after penetrating through the connecting hole, and the positioning pin is inserted into the positioning pin hole, so that the water spraying block can be accurately and stably fixed on the base of the chuck.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The spray head is installed at the port of the water passing hole, the spray pipe of the spray head is provided with a spherical hinge part, and the two ends of the spray pipe are conically arranged out of the fixing sleeve of the spray head, so that the water outlet direction can be adjusted by rotating the spray pipe, and the water outlet direction of the water spraying block can be conveniently adjusted when the lathe changes the product processing. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the sectional view of the center water outlet water spraying block.

[0018] Figure 2 is the sectional view of the center water outlet water spraying block.

[0019] Figure 3 is Figure 2 the enlarged view of A in FIG.

[0020] Figure 4 is the sectional structure schematic view of the center water outlet water spraying block when being installed on the lathe.

[0021] In the figure, 1 is a main body; 1a is a water passing hole; 1a1 is a shoulder; 1b is a connecting ring; 1b1 is a connecting hole; 1b2 is a positioning pin hole; 2 is a spray head; 2a is a fixing sleeve; 2a1 is a first sleeve body; 2a2 is a second sleeve body; 2a3 is a spherical cavity; 2b is a spray pipe; 2b1 is a spherical hinge part; 2c is a sealing ring; 3 is a chuck; 3a is a base; 3b is a clamping jaw; and 4 is a water spraying pipe. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0023] As Figure 1 and Figure 2 shown, a center water outlet water spraying block comprises a cylindrical main body 1 and a spray head 2 fixed on the main body 1, the main body 1 is provided with a cylindrical water passing hole 1a penetrating along the axial direction in the center, and the spray head 2 is fixed at the water outlet port of the water passing hole 1a. A protruding connecting ring 1b is integrally arranged on the outer side of one end of the main body 1, the connecting ring 1b is hexagonal, and three connecting holes 1b1 and three positioning pin holes 1b2 are formed in the connecting ring 1b.

[0024] As Figure 2 and Figure 3As shown, the nozzle 2 includes a fixing sleeve 2a inserted and fixed at the outlet of the water passage 1a, and a nozzle 2b that passes through the fixing sleeve 2a and is rotatable. To facilitate the installation of the nozzle 2b, the fixing sleeve 2a includes a first sleeve 2a1 and a second sleeve 2a2 that are fixed separately. The second sleeve 2a2 is inserted into the second sleeve 2a2 and tightly fitted, while the first sleeve 2a1 is inserted into the outlet of the water passage 1a and tightly fitted to the wall of the water passage 1a. Both ends of the nozzle 2b extend beyond the fixing sleeve 2a and are conical in shape with a decreasing outer diameter along the direction of extension from the fixing sleeve 2a. There is a gap between the outer surface of the inner end of the nozzle 2b and the wall of the water passage 1a, providing clearance for the rotation of the inner end of the nozzle 2b. The middle part of the nozzle 2b is a spherical ball joint 2b1, and the fixing sleeve 2a has a spherical cavity 2a3 that mates with the ball joint 2b1. A shoulder 1a1 is provided on the wall of the water outlet of the water passage 1a. The fixing sleeve 2a is inserted into the water passage 1a, and the inner end face of the fixing sleeve 2a abuts against the shoulder 1a1. The outer end of the fixing sleeve 2a extends out of the main body 1. Correspondingly, the outer end of the nozzle 2b extends out of the main body 1. The outer surface of the outer end of the fixing sleeve 2a is a conical surface to reduce the possibility of water and chips accumulating at the outer end of the fixing sleeve 2a. A sealing ring 2c is provided between the ball joint 2b1 of the nozzle 2b and the fixing sleeve 2a. The sealing ring 2c is fixed in the fixing sleeve 2a and clamped between the second sleeve 2a2 and the first sleeve 2a1.

[0025] like Figure 4 As shown, this water spray block replaces the water outlet seat in the prior art, fixing the water spray block inside the chuck 3 with the nozzle 2 facing outwards. The water spray pipe 4 is connected to the inlet of the water passage hole 1a of the water spray block. The chuck 3 includes a base 3a and a jaw 3b slidably connected to the base 3a. A central hole is provided at the center of the base 3a, and the main body 1 of the water spray block is inserted into the central hole of the base 3a. The connecting ring 1b abuts against the end face of the base 3a. Bolts are inserted into the three connecting holes 1b1 of the connecting ring 1b, and the water spray block is fixed to the base 3a of the chuck 3 by the bolts. When installing the water spray block on the base 3a, a positioning pin is inserted into one of the positioning pin holes 1b2, and the other end of the positioning pin is inserted into the base 3a for installation and positioning. Then, the bolts are tightened to fix the water spray block to the base 3a. A sealing ring is also fixed on the wall of the water passage hole 1a. The water spray pipe 4 in the spindle is inserted into the water passage hole 1a and forms a seal with the sealing ring. After installing this water spray block on the lathe, when changing products for processing, simply rotate the spray nozzle 2b to adjust the water outlet direction; there is no need to replace the water spray block, making the operation of adjusting the water outlet direction convenient. To facilitate the rotation of the spray nozzle 2b, a metal rod can be inserted into the spray nozzle 2b, then the metal rod can be turned to rotate the spray nozzle 2b, and then the metal rod can be pulled out.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A center-outflow water jet block comprising a main body (1) having a water passage hole (la) therethrough, characterized in that, The nozzle (2) comprises a fixed sleeve (2a) inserted and fixed at the port of the water passage hole (1a) and a spray pipe (2b) penetrating the fixed sleeve (2a) and capable of rotating, both ends of the spray pipe (2b) extending out of the fixed sleeve (2a) and both being conical with the outer diameter decreasing along the direction extending out of the fixed sleeve (2a), and the outer end of the spray pipe (2b) extending out of the main body (1), the middle part of the spray pipe (2b) being a spherical hinge part (2b1), and the fixed sleeve (2a) having a spherical cavity (2a3) matched with the spherical hinge part (2b1).

2. The central water outlet water jet block according to claim 1, characterized in that The hole wall surface of the water passage hole (1a) is provided with a stop shoulder (1a1), the fixed sleeve (2a) is inserted into the water passage hole (1a) and the inner end surface of the fixed sleeve (2a) abuts against the stop shoulder (1a1).

3. The center outlet water jet block of claim 1, wherein, The outer end of the fixed sleeve (2a) extends out of the main body (1).

4. A central outlet water block according to any one of claims 1 to 3, wherein A sealing ring (2c) is arranged between the spherical hinge part (2b1) of the spray pipe (2b) and the fixed sleeve (2a).

5. A central outlet water jet block according to any one of claims 1-3, characterized in that The outer side surface of the main body (1) is integrally provided with a protruding connecting ring (1b), the connecting ring (1b) is provided with a connecting hole (1b1) and a positioning pin hole (1b2).

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