CN110181399A - A kind of oblique grinding machine locating unit of fluid pressure type - Google Patents

Abstract

The invention discloses a hydraulic feeding and positioning device for an inclined grinding machine. The rotating part is arranged on the frame of the grinding machine, and the rotating part is used for positioning workpieces. The tailstock positioning part includes a tailstock center point and a tailstock driving part, and the tailstock driving part is arranged on the frame. The top end of the tailstock is arranged on the driving part of the tailstock. The feeding part includes a bearing part, an inclined lifting part, a positioning component and a moving part. The moving part is arranged on the frame. The inclined lifting part is arranged on the moving part. The bearing part is arranged on the output shaft of the inclined lifting part, and the bearing part is provided with a positioning surface for positioning the workpiece. The positioning component is arranged in the accommodating cavity in the bearing part. The first end of the fixing block in the positioning assembly is connected with the first end of the accommodating cavity. The first end of the ejecting block is connected with the second end of the fixed block, and the ejecting block and the fixed block cooperate with the inner wall of the accommodating cavity to form a closed cavity, and the second end of the ejecting block is connected with the workpiece. The gas delivery part communicates with the closed cavity. The two ends of the return spring are respectively connected with the push-out block and the accommodating cavity.

Description

A hydraulic feeding positioning device for inclined grinder

technical field

The invention belongs to the technical field of grinding machines, in particular to a hydraulic feeding and positioning device for inclined grinding machines.

Background technique

When grinding shaft products on a grinding machine, the product needs to be fixed and clamped on the machine tool, and the workpiece is driven to rotate through the rotation of the main shaft, and the grinder rotates for grinding. During production and processing, usually the product to be ground is manually clamped by the worker, first hold the product with the left hand, then align the center of the product with the center of the two ends of the grinding machine, and then use the right hand to hold the product on the tailstock. The moving top supports the workpiece, so that after the workpiece is fixed, the operator's hands are freed. For small and light products, the general operator can afford it. However, when producing relatively heavy batch products, the operator has to bear a large force when holding the product with his arm and clamping it. If the operation is repeated for a long time, The work intensity is too great for ordinary people to bear. For products that do not require high precision, if an automatic CNC grinding machine is used, the processing and production costs are relatively high.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hydraulic feeding positioning device for an inclined grinding machine to solve the problem of manual loading by workers.

In order to solve the above problems, the technical solution of the present invention is:

A hydraulic inclined grinding machine feeding positioning device of the present invention comprises:

a rotating part, the first end of the rotating part is arranged on the frame of the grinding machine, and the second end of the rotating part is used for positioning the first end of the workpiece;

Tailstock positioning part, the tailstock positioning part includes a tailstock top and a tailstock driving part, the tailstock driving part is arranged on the frame; the tailstock top is arranged on the first part of the tailstock driving part At one end, the tailstock driving part is used to push the tailstock center to move; the first end of the tailstock center is used to position the second end of the workpiece;

The feeding part, the feeding part includes a bearing part, an oblique lifting part, a positioning component, and a moving part;

The inclined lifting part includes a motor, a gear, a rack, and a rotating frame; the motor is arranged in the frame and the output shaft of the motor protrudes from the frame; the gear is arranged in the output on the shaft; the first end of the rotating frame is rotatably connected to the frame; the first end of the rack is rotatably connected to the second end of the rotating frame, and the second end of the rack is connected to the gear meshing;

The carrying part is arranged at the second end of the rotating frame, the carrying part is used to carry the workpiece, and the carrying part is also provided with a positioning surface for positioning the workpiece;

The moving part is arranged on the rotating frame, and the output end of the moving part is connected with the bearing part;

The positioning assembly is arranged in the accommodating cavity in the carrying part, and is used to push the workpiece and make the positioning surface of the workpiece contact with the positioning surface of the carrying part; the positioning assembly includes a fixing block, a push-out Block, return spring, air delivery part; the first end of the fixed block is connected to the first end of the accommodating cavity; the first end of the pushing block is connected to the second end of the fixed block, and The push-out block and the fixed block cooperate with the inner wall of the accommodating cavity to form a closed cavity, and the second end of the push-out block is installed on the bearing part and connected with the workpiece; The first end of the air part is pierced through the bearing part and communicates with the closed cavity; the first end of the return spring is connected with the push-out block, and the second end of the return spring is connected with the container The second end of the cavity is connected.

In the feeding and positioning device for a hydraulic inclined grinding machine of the present invention, the rotating part includes a grinding machine head frame, a rotating head, a rotating top, an auxiliary bracket, a rotating spring, and a clamping ring; the first end of the grinding machine head frame is connected to the The frame is connected; the first end of the rotating head is connected with the second end of the grinding machine head frame; the first end of the rotating center is connected with the second end of the rotating head, and the second end of the rotating center end is used for positioning the first end of the workpiece; the first end of the auxiliary bracket is connected with the rotating head, and the second end of the auxiliary bracket is connected with the clamping ring; the clamping The ring is used to be sleeved on the workpiece, and the clamping ring locks the workpiece through bolts; the first end of the rotating spring is connected with the second end of the rotating head, and the rotating The second end of the spring is adapted to engage the workpiece.

In the feeding and positioning device for a hydraulic inclined grinding machine of the present invention, the tailstock driving part includes a tailstock motor and a tailstock guide rail; the tailstock guide rail is arranged on the frame; the tailstock motor is arranged on the tailstock on the seat guide rail; the top of the tailstock is connected with the output shaft of the tailstock motor.

In the hydraulic inclined grinding machine feeding positioning device of the present invention, the moving part includes a hydraulic pump, a hydraulic cylinder, a piston rod, a first reversing valve, and a travel switch, and the hydraulic pump is connected to the hydraulic cylinder through a hydraulic pipeline; The first reversing valve is set on the hydraulic pipeline; the piston rod is set in the hydraulic cylinder, and the output end of the piston rod is installed in the hydraulic cylinder and connected with the inclined lifting part The travel switch is set under the processing station, when the inclined lifting part moves to the bottom of the processing station, the inclined lifting part contacts the travel switch, and the travel switch stops sending The signal causes the piston rod to stop pushing the inclined lifting part.

In the feeding and positioning device for a hydraulic inclined grinding machine of the present invention, the air delivery part includes an air pump, a second reversing valve, a hose and a first air hole arranged in the bearing part; the air pump is connected to the first air hole. The first end of the air hole is connected through the flexible pipe; the second reversing valve is arranged on the flexible pipe; the second end of the first air hole communicates with the closed cavity.

In the feeding and positioning device for a hydraulic inclined grinding machine of the present invention, the rack is an arc rack, and a guide groove is provided in the length direction of the rack, and a pin is penetrated in the guide groove and connected with the frame. connect.

In the feeding positioning device for a hydraulic inclined grinding machine of the present invention, the bearing part is a bearing block with a V-shaped groove; the bearing block is also provided with a groove tangent to the direction of the V-shaped groove, and the The first side of the groove is a positioning surface for positioning the workpiece; the bearing block is provided with a guide hole, and the guide rod is passed through the guide hole.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical scheme:

In one embodiment of the present invention, a part for rotating the workpiece and a tailstock positioning part are provided on the frame of the grinding machine, and a feeding part is also provided on the frame. The feeding part includes a bearing part, an oblique lifting part, a positioning assembly, The moving part, the bearing part is set on the inclined lifting part, which is used to carry the workpiece; the inclined lifting part is set on the frame, used to lift the bearing part; In the bearing part, it is used for positioning operation of the workpiece; by placing the workpiece on the bearing part at the loading and unloading station, and setting the shape and positioning operation by the positioning component, the workpiece is moved to the processing station by the moving part and the inclined lifting part On the top, the rotating part and the tailstock positioning part are used for positioning and processing. After the processing is completed, the rotating part and the tailstock positioning part cancel the positioning of the workpiece, and the workpiece is carried by the bearing part again, and the workpiece is moved by the inclined lifting part and moving The part moves back to the loading and unloading station. Through the automation of the workpiece loading process, the problem of manual loading by workers is solved, which can effectively reduce the labor intensity of manual clamping and improve production efficiency. At the same time, the device has a simple structure, convenient installation, and low cost.

Description of drawings

Fig. 1 is the front view of the feeding positioning device of hydraulic type inclined grinder of the present invention;

Fig. 2 is the front view of the inclined lifting part of the feeding positioning device of the hydraulic inclined grinding machine of the present invention;

Fig. 3 is the front view of the positioning assembly of the hydraulic inclined grinder feeding positioning device of the present invention;

Fig. 4 is a front view of the clamping ring of the hydraulic inclined grinder feeding positioning device of the present invention.

Explanation of reference signs: 1: grinder head frame; 2: rotating head; 3: rotating center; 4: auxiliary support; 5: rotating spring; 6: clamping ring; 7: tailstock center; 8: tailstock motor; 9: tailstock guide rail; 10: fixed block; 11: ejection block; 12: return spring; 13: air pump; 14: second reversing valve; 15: hose; 16: first vent hole; 17: hydraulic pump; 18: Hydraulic cylinder; 19: Piston rod; 20: First reversing valve; 21: Travel switch; 22: Gear; 23: Rack; 24: Swivel frame; 25: Guide groove; 26: Pin; ;28: Workpiece.

Detailed ways

The feeding and positioning device for a hydraulic inclined grinder proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims.

Referring to Fig. 1 and Fig. 3, in one embodiment, a kind of hydraulic type inclined grinding machine feeding positioning device includes: a rotating part, the first end of the rotating part is arranged on the frame of the grinding machine, and the second end of the rotating part is used for The first end of the workpiece 28 is positioned. The tailstock positioning part, the tailstock positioning part comprises the tailstock top 7 and the tailstock driving part, and the tailstock driving part is arranged on the frame. The tailstock center 7 is arranged at the first end of the tailstock driving part, and the tailstock driving part is used to push the tailstock center 7 to move. The first end of the tailstock center 7 is used for positioning the second end of the workpiece 28 . The feeding part, the feeding part includes a bearing part 27, an oblique lifting part, a positioning assembly, and a moving part. Inclined lifting portion comprises motor, gear 22, rack 23, swivel frame 24; Motor is located in the frame and the output shaft of motor stretches out from frame; Gear 22 is located on the output shaft of motor; One end is rotatably connected with the frame; the first end of the rack 23 is rotatably connected with the second end of the rotatable frame 24, and the second end of the rack 23 is meshed with the gear 22; , the carrying part 27 is used to carry the workpiece, and the carrying part 27 is also provided with a positioning surface for positioning the workpiece; The positioning assembly includes a fixed block 10, a pushing block 11, a return spring 12, and an air delivery part. The first end of the fixing block 10 is connected with the first end of the accommodating cavity. The first end of the push-out block 11 is connected to the second end of the fixed block 10, and the push-out block 11 and the fixed block 10 cooperate with the inner wall of the accommodating cavity to form a closed cavity, and the second end of the push-out block 11 is installed on the bearing The part 27 is in contact with the workpiece 28. The first end of the gas transmission part is passed through the bearing part 27 and communicates with the closed cavity. The first end of the return spring 12 is connected to the pushing block 11, and the second end of the return spring 12 is connected to the second end of the accommodating cavity. A sealing ring is also provided on the contact surface between the ejection block 11 and the accommodating chamber to achieve a better sealing effect. By setting the rotating part and the tailstock positioning part for the workpiece 28 on the frame of the grinding machine, a feeding part is also set on the frame, and the feeding part includes a bearing part 27, an oblique lifting part, a positioning assembly, and a moving part. The carrying part 27 is arranged on the inclined lifting part for carrying the workpiece 28 . The oblique lifting part is arranged on the frame and is used for lifting and lowering the carrying part 27 . The moving part is arranged on the rotating frame and is used for moving the carrying part. The positioning assembly is arranged in the carrying portion 27 for positioning the workpiece 28 . The workpiece 28 is placed on the bearing part 27 at the loading and unloading station, and is fixed and positioned by the positioning assembly, and then the workpiece 28 is moved to the processing station by the moving part and the inclined lifting part, and positioned by the rotating part and the tailstock After the processing is completed, the rotating part and the tailstock positioning part cancel the positioning of the workpiece 28, and the workpiece 28 is carried by the bearing part 27 again, and the workpiece 28 is moved back to the loading and unloading by the inclined lifting part and the moving part. Station. Through the automation of the workpiece 28 loading process, the problem of manual loading by workers is solved, the labor intensity of manual clamping can be effectively reduced, and the production efficiency is improved. At the same time, the device has simple structure, convenient installation and low cost.

Further, referring to FIG. 1 and FIG. 4 , the rotating part includes a grinder head frame 1 , a rotating head 2 , a rotating center 3 , an auxiliary bracket 4 , a rotating spring 5 , and a clamping ring 6 . The first end of the grinder head frame 1 is connected with the frame. The first end of the rotary head 2 is connected with the second end of the grinder head frame 1 . The first end of the rotating center 3 is connected with the second end of the rotating head 2 , and the second end of the rotating center 3 is used for positioning the first end of the workpiece 28 . The first end of the auxiliary bracket 4 is connected with the rotating head 2 , and the second end of the auxiliary bracket 4 is connected with the clamping ring 6 . The clamping ring 6 is used for sheathing on the workpiece 28, and the clamping ring 6 locks the workpiece 28 through bolts. The first end of the rotating spring 5 is connected with the second end of the rotating head 2 , and the second end of the rotating spring 5 is used to connect with the workpiece 28 . The rotating part is respectively connected with the workpiece 28 and the rotary head 2 through the clamping ring 6 and the auxiliary bracket 4, so that the rotary head 2 can drive the workpiece 28 to rotate together. The rotary spring 5 can push the workpiece 28 out of the rotary center 3 when the workpiece 28 is processed and blanked to the bearing part 27, so as to ensure that the rotary center 3 is completely separated from the center hole of the end surface of the workpiece 28, and avoid operations such as blanking errors.

Further, the tailstock driving part includes a tailstock motor 8 and a tailstock guide rail 9 . Tailstock guide rail 9 is located on the frame. The tailstock motor 8 is located on the tailstock guide rail 9 . Tailstock top 7 links to each other with the output shaft of tailstock motor 8. There is a pressure sensor inside the tailstock top 7. When the tailstock top 7 pushes the workpiece 28 and fixes the rotating top 3. When the set pressure is reached, the tailstock motor 8 stops working to avoid damage to parts due to excessive pressure and avoid clamping. Not tight situation.

Further, referring to FIG. 2 , the moving part includes a hydraulic pump 17 , a hydraulic cylinder 18 , a piston rod 19 , a first reversing valve 20 , and a travel switch 21 . The hydraulic pump 17 is connected to the hydraulic cylinder 18 through a hydraulic pipeline. The first reversing valve 20 is arranged on the hydraulic pipeline. The piston rod 19 is arranged in the hydraulic cylinder 18, and the output end of the piston rod 19 passes through the hydraulic cylinder 18 and is connected with the inclined lifting part. The travel switch 21 is arranged below the processing station. When the inclined lifting part moves to the bottom of the processing station, the inclined lifting part contacts the travel switch 21, and the travel switch 21 sends a stop signal to make the piston rod 19 stop pushing the inclined lifting part. Setting the travel switch 21 can make the formation of the moving part pushing the inclined lifting part more precise, avoid the problem of wrong position of the moving part pushing the inclined lifting part, and improve the accuracy. The first reversing valve 20 is provided with a first solenoid valve and a second solenoid valve for controlling the reversing valve to perform reversing.

Preferably, the air delivery part includes an air pump 13 , a second reversing valve 14 , a hose 15 and a first vent hole 16 provided in the bearing part 27 . The air pump 13 is connected to the first end of the first ventilation hole 16 through a hose 15 . The second reversing valve 14 is arranged on the hose 15 . The second end of the first ventilation hole 16 communicates with the closed cavity. The second reversing valve 14 is provided with a third solenoid valve for controlling the second reversing valve 14 .

Further, the rack 23 is an arc rack, the rack 24 defines a guide groove 25 along its length, and a pin 26 passes through the guide groove 25 and connects with the machine frame. The guide groove 25 is provided on the rack 23 and the pin 26 is penetrated in the guide groove, so that the rack and pinion drive is more stable, and the rack will not deviate from the predetermined track.

Further, the bearing part 27 is a bearing block with a V-shaped groove. A groove tangent to the direction of the V-shaped groove is also provided on the bearing block, and the first side of the groove is a positioning surface for positioning the workpiece 28 . The bearing block is provided with a guide hole, and the guide rod 27 is passed through the guide hole. The V-groove facilitates the placement of rotary parts. The setting of the groove facilitates the placement of the stepped shaft, and the positioning surface of the groove also facilitates the positioning of the stepped shaft.

The following is a further elaboration through the working principle and steps of the feeding positioning device of the hydraulic inclined grinder.

1. The worker puts the workpiece 28 into the V-shaped groove in the bearing part 27 .

2. The third solenoid valve is energized, the second reversing valve 14 is reversing, and the air pump 13 enters the gas into the sealed cavity in the bearing block through the hose 15, and the pressure acts on the left end surface of the pushing block 11, compressing the return spring 12 to contract, The push-out block 11 is ejected, and the first end surface of the workpiece 28 is pushed to move to the right until the positioning surface of the bearing part 27 contacts with the positioning surface of the workpiece 28 .

3. The first electromagnetic valve is energized, and under the action of the hydraulic pump 17, the liquid enters the lower end of the hydraulic cylinder 18 to push the piston rod 19 to move, so that the entire inclined lifting part moves forward.

4. When one end of the inclined lifting part touches the travel switch 21 and reaches the designated position, the first electromagnetic valve is powered off, and the first reversing valve 20 returns to the neutral position. The motor drives the gear 22 to rotate forward, and under the guidance of the rack and pinion transmission and the guide groove 25, it drives the rotating frame 24 and the bearing part 27 on the rotating frame 24 to rotate around the connection point between the rotating frame 24 and the frame, and after reaching the set position stop. Simultaneously, the third electromagnetic valve is de-energized, and the compressed air is discharged, and under the action of the back-moving spring 12, the push-out block 11 is reset.

5. The tailstock motor 8 rotates forward, pushes the tip of the tailstock 7 to move toward the center of the workpiece 28, touches and pushes the workpiece 28 to move to the left, and compresses the rotating spring 5 to contract until both ends of the workpiece 28 are fixed by the tip.

6. When the internal pressure sensor of the tailstock top 7 reaches the set pressure, the tailstock motor 8 stops rotating. Simultaneously, the motor drives the gear 22 to reverse, and the bearing part 27 and the rotating frame 24 descend and reset.

7. The auxiliary bracket 4 drives the clamping ring 6, thereby driving the workpiece 28 to rotate, and the grinding starts.

8. After the processing is completed, first the motor drives the gear 22 to rotate forward, and drives the rotating frame 24 and the bearing part 27 to move upward to reach the specified height.

9. The tailstock motor 8 reverses, the tailstock top 7 moves to the right, and at the same time, under the elastic force of the rotary spring 5, the workpiece 28 is moved out of the positioning center hole. At this time, the workpiece 28 falls on the bearing part 27.

10. The motor drives the gear 22 to reverse again, and the rotating frame 24 is reset. At the same time, the second electromagnetic valve is energized, and the first reversing valve 20 is reversed. Under the action of the liquid, the piston rod 19 returns, and the worker takes out the workpiece 28.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and equivalent technologies, they still fall within the protection scope of the present invention.

Claims (7)

1. A feeding positioning device for a hydraulic inclined grinder, characterized in that it comprises: a rotating part, the first end of the rotating part is arranged on the frame of the grinding machine, and the second end of the rotating part is used for positioning the first end of the workpiece; Tailstock positioning part, the tailstock positioning part includes a tailstock top and a tailstock driving part, the tailstock driving part is arranged on the frame; the tailstock top is arranged on the first part of the tailstock driving part At one end, the tailstock driving part is used to push the tailstock center to move; the first end of the tailstock center is used to position the second end of the workpiece; The feeding part, the feeding part includes a bearing part, an oblique lifting part, a positioning component, and a moving part; The inclined lifting part includes a motor, a gear, a rack, and a rotating frame; the motor is arranged in the frame and the output shaft of the motor protrudes from the frame; the gear is arranged in the output on the shaft; the first end of the rotating frame is rotatably connected to the frame; the first end of the rack is rotatably connected to the second end of the rotating frame, and the second end of the rack is connected to the gear meshing; The carrying part is arranged at the second end of the rotating frame, the carrying part is used to carry the workpiece, and the carrying part is also provided with a positioning surface for positioning the workpiece; The moving part is arranged on the rotating frame, and the output end of the moving part is connected with the bearing part; The positioning assembly is arranged in the accommodating cavity in the carrying part, and is used to push the workpiece and make the positioning surface of the workpiece contact with the positioning surface of the carrying part; the positioning assembly includes a fixing block, a push-out Block, return spring, air delivery part; the first end of the fixed block is connected to the first end of the accommodating cavity; the first end of the pushing block is connected to the second end of the fixed block, and The push-out block and the fixed block cooperate with the inner wall of the accommodating cavity to form a closed cavity, and the second end of the push-out block is installed on the bearing part and connected with the workpiece; The first end of the air part is pierced through the bearing part and communicates with the closed cavity; the first end of the return spring is connected with the push-out block, and the second end of the return spring is connected with the container The second end of the cavity is connected. 2. The feeding and positioning device for a hydraulic inclined grinding machine according to claim 1, wherein the rotating part comprises a grinding machine head frame, a rotating head, a rotating top, an auxiliary bracket, a rotating spring, and a clamping ring; The first end of the grinding machine head frame is connected with the frame; the first end of the rotating head is connected with the second end of the grinding machine head frame; the first end of the rotating center is connected with the second end of the rotating head The second end of the rotating center is used to position the first end of the workpiece; the first end of the auxiliary bracket is connected to the rotating head, and the second end of the auxiliary bracket is connected to the The clamping ring is connected; the clamping ring is used to be sleeved on the workpiece, and the clamping ring locks the workpiece through bolts; the first end of the rotating spring is connected to the rotating The second end of the head is connected, and the second end of the rotating spring is used to contact the workpiece. 3. The feeding and positioning device for a hydraulic inclined grinding machine according to claim 1, wherein the tailstock driving part comprises a tailstock motor and a tailstock guide rail; the tailstock guide rail is arranged on the frame; The tailstock motor is arranged on the tailstock guide rail; the tailstock tip is connected with the output shaft of the tailstock motor. 4. The feeding positioning device for a hydraulic inclined grinding machine according to claim 1, wherein the moving part comprises a hydraulic pump, a hydraulic cylinder, a piston rod, a first reversing valve, and a travel switch, and the hydraulic pump and The hydraulic cylinders are connected through a hydraulic pipeline; the first reversing valve is set on the hydraulic pipeline; the piston rod is set in the hydraulic cylinder, and the output end of the piston rod is installed in the hydraulic pressure The cylinder is connected with the inclined lifting part; the travel switch is set under the processing station, when the inclined lifting part moves to the bottom of the processing station, the inclined lifting part contacts the The travel switch, the travel switch sends a stop signal to make the piston rod stop pushing the inclined lifting part. 5. The feeding and positioning device for a hydraulic inclined grinding machine according to claim 1, wherein the air transmission part includes an air pump, a second reversing valve, a hose and a first air hole arranged in the bearing part The air pump is connected to the first end of the first air hole through the flexible pipe; the second reversing valve is arranged on the flexible pipe; the second end of the first air hole is connected to the The closed cavity communicates. 6. The feeding and positioning device for a hydraulic inclined grinding machine according to claim 1, wherein the rack is an arc rack, a guide groove is provided in the length direction of the rack, and a pin penetrates the The guide groove is connected with the frame. 7. According to the hydraulic type inclined grinding machine feeding positioning device according to claim 6, it is characterized in that, the bearing part is a bearing block with a V-shaped groove; the bearing block is also provided with the V-shaped groove A groove with a tangential direction, the first side of the groove is a positioning surface for positioning the workpiece.