High precision machining equipment

Abstract

The present invention aims to provide a high-precision machining equipment with high machining accuracy, stable operation and high efficiency. The present invention includes a frame, and a vibration plate, a base, a positioning clamping assembly and a processing device fixed on the frame. The base is provided with a feed chute docking with the output end of the vibration plate, and the bottom surface of the feed chute is inclined downward in the direction away from the vibration plate. A processing positioning groove is provided on one side of the feed chute. The processing positioning groove is an arc groove, and the processing positioning groove is coaxial with the tool of the processing device. The positioning clamping assembly cooperates with the processing positioning groove to clamp the product to be processed. The present invention is applied to the technical field of processing equipment.

Description

Technical Field

[0001] The invention is applied to the technical field of processing equipment. Background Art

[0002] In the field of mechanical processing, cylindrical parts are often processed from rods. Rods are usually cut and cut by lathes to form products. The outer end and outer side of the product can be processed by turning tools. However, due to the volume and angle limitations of the tool, the inner edge of the cut surface of the product cannot be chamfered and processed. In order to process this surface, it is often necessary to re-clamp the product before chamfering and other processing can be performed. At the same time, traditional lathes require frequent loading and unloading and cannot efficiently process batch columnar products. For example, the Chinese patent with publication number 107225293A discloses a chamfering machine and an automatic chamfering device using the chamfering machine. It transports materials through a turntable structure. There is a certain running error after the turntable rotates. When the chamfering process is performed, the product cannot remain coaxial with the tool, resulting in low chamfering accuracy and a certain deviation in the chamfering position. At the same time, the turntable processing requires a loading and unloading mechanism to perform loading and unloading actions, and the turntable drives the product to switch workstations. It takes a certain amount of time. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a high-precision machining equipment with high machining accuracy, stable operation and high efficiency.

[0004] The technical solution adopted by the present invention is: the present invention includes a frame, and a vibration plate, a base, a positioning clamping assembly and a processing device fixed on the frame, the base is provided with a feed chute docking with the output end of the vibration plate, the bottom surface of the feed chute is inclined downward in the direction away from the vibration plate, and a processing positioning groove is provided on one side of the feed chute, the processing positioning groove is a circular arc groove, the processing positioning groove is coaxial with the tool of the processing device, and the positioning clamping assembly cooperates with the processing positioning groove to clamp the product to be processed.

[0005] It can be seen from the above scheme that the materials are arranged and supplied through the vibration plate, and then the products are neatly transported to the feed chute. By adopting the design that the bottom surface of the feed chute is tilted downward in the direction away from the vibration plate, when the product falls into the feed chute from the output end of the vibration plate, it can slide directly to the clamping processing position under the action of gravity. By adopting the design that the processing positioning groove is coaxial with the tool of the processing device, the product is always in the standard processing position each time chamfering or tapping is performed, thereby ensuring that the position of the chamfer and the thread will not deviate, thereby improving the processing accuracy and working stability. By adopting the automatic drop-down method to replenish the products to be processed, the replenishment speed of the replenished products is increased, and the production efficiency is improved. The present invention occupies a small space, and there is no need to set up a loading and unloading robot for product handling.

[0006] A preferred solution is that the positioning and clamping assembly includes a driving cylinder, a clamping block, a limit block and a transmission rod, the clamping block is fixedly connected to the movable end of the driving cylinder, the limit block is transmission-connected to the movable end of the driving cylinder through the transmission rod, a first through hole matching the clamping block is provided on the side of the feed chute away from the processing positioning groove, a first limit groove matching the processing positioning groove is provided at the end of the clamping block, a second through hole matching the limit block is provided at the bottom of the processing positioning groove, a second limit groove is provided at the end of the limit block, and the limit block is close to the output end of the feed chute.

[0007] It can be seen from the above scheme that the clamp is driven by the driving cylinder to the direction of the processing positioning groove, so that the first limiting groove cooperates with the processing positioning groove to clamp and fix the product, so that the product is kept on the processing station, and then the product is processed by the processing device. The clamp slides on the base through the first through hole, and the limiting block slides on the base through the second through hole. The second limiting groove on the limiting block blocks the processed product, so that it forms support for the next product to be processed, so that the product to be processed is kept at the same position height as the processing positioning groove and the first limiting groove. The limiting block is connected to the active end of the driving cylinder through the transmission rod to realize the linkage between the limiting block and the clamp, so as to ensure that the limiting block can timely support the processed product after the clamp releases the product, and at the same time, after the clamp is clamped with a new product, the limiting block can immediately release the processed product and output it to the external collection structure.

[0008] A further preferred solution is that the clamping block is fixedly connected to the movable end of the driving cylinder by a stud bolt, a first screw is provided at the end of the transmission rod away from the limit block, a sliding sleeve is provided on the first screw, two first locking nuts are also provided on the first screw, the two first locking nuts are respectively located at both ends of the sliding sleeve, a sliding hole matched with the sliding sleeve is provided at the lower end of the clamping block, and the length of the sliding sleeve is greater than the length of the sliding hole.

[0009] It can be seen from the above scheme that by using stud bolts as the connection structure between the clamp block and the driving cylinder, the relative distance between the clamp block and the driving cylinder can be adjusted, so that the first limiting groove can be conveniently adjusted to cooperate with the processing positioning groove to form a circular limiting space. By using a sliding hole to cooperate with the sliding sleeve, and the length of the sliding sleeve is greater than the length of the sliding hole, a time difference is realized in the linkage between the clamp block and the limiting block, that is, after the clamp block moves a certain distance to ensure that the product will not fall, the limiting block releases the processed product to ensure that the unprocessed product will not accidentally fall out during switching. The sliding sleeve is fixed by the two first locking nuts, and the position of the sliding sleeve is adjustable by using a screw as a limiting structure, so as to adjust the pre-pressure of the reset structure of the sliding rod.

[0010] A further preferred solution is that a stepped hole matched with the transmission rod is provided in the base, a limit block is provided on the transmission rod, a return spring is sleeved on the transmission rod, and the return spring is located between the stepped hole and the limit block.

[0011] It can be seen from the above scheme that by setting the return spring, the limit block can be extended synchronously when the clamp block is retracted, thereby preventing the processed product from accidentally slipping out and failing to support the product to be processed, causing the product to fall into the support position without being processed.

[0012] A further preferred solution is that a limiting bolt is further provided on the limiting block, and the end of the limiting bolt cooperates with the side surface of the base.

[0013] It can be seen from the above scheme that the maximum extension distance of the limit block can be adjusted by setting the limit bolt to ensure the limit effect.

[0014] A further preferred solution is that both the first limiting groove and the second limiting groove are arc grooves, and the distance between the arc center of the first limiting groove and the arc center of the second limiting groove in the length direction of the feed chute is the diameter of the product to be processed.

[0015] It can be seen from the above solution that the product processed on the second limiting groove can effectively and reliably support the product to be processed, and keep the product to be processed at the same level as the first limiting groove and the processing positioning groove.

[0016] A further preferred solution is that a second screw is provided at one end of the transmission rod away from the driving cylinder, the second screw passes through the limit block, and two second locking nuts are also provided on the second screw, and the two second locking nuts are respectively located at both ends of the limit block.

[0017] It can be seen from the above solution that by adopting a screw rod as a connecting structure, the matching position of the limit block and the transmission rod can be adjusted, thereby facilitating the adjustment of the moving stroke of the limit block.

[0018] A further preferred solution is that a push block cooperating with the processed positioning groove is provided on the limit block, the second through hole is communicated with the processed positioning groove, and the push block cooperates with the lower side surface of the product.

[0019] It can be seen from the above solution that the processed product is pushed out from the processing positioning groove when the clamping block is retracted by the pushing block.

[0020] A preferred solution is that the base is provided with a plurality of groups of photoelectric sensors cooperating with the feed chute.

[0021] It can be seen from the above scheme that by setting the photoelectric sensor to sense the amount of material in the feed chute, when the photoelectric sensor is triggered, it means that the material has been loaded to that position, which makes it easier to control the start and stop of the vibration plate and save energy.

[0022] A preferred solution is that a dust cover is provided on the feed chute, the dust cover is fixedly connected to the base, a processing hole is provided on the dust cover which is connected to the processing positioning groove, and the edge of the processing hole is chamfered.

[0023] It can be seen from the above scheme that the dust cover is provided to prevent chips from falling into the feed chute during chamfering or tapping, thereby affecting the movement of the product. The processing hole is used for the passage of the tool of the processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the positioning and clamping assembly and the base;

[0026] Figure 3 is a schematic diagram of the structure of the feed chute;

[0027] Figure 4 is a schematic diagram of the exploded structure of the positioning and clamping assembly from a first viewing angle;

[0028] Figure 5 is a schematic diagram of the exploded structure of the positioning and clamping assembly from a second viewing angle;

[0029] Figure 6 is a cross-sectional view of the positioning clamping assembly and the base. DETAILED DESCRIPTION

[0030] like Figures 1 to 6 As shown, in this embodiment, the present invention includes a frame 1, and a vibration plate 2, a base 3, a positioning clamping assembly and a processing device fixed on the frame 1. The base 3 is provided with a feed chute 4 docking with the output end of the vibration plate 2, and the bottom surface of the feed chute 4 is inclined downward in the direction away from the vibration plate 2. A processing positioning groove 5 is provided on one side of the feed chute 4. The processing positioning groove 5 is an arc groove, and the processing positioning groove 5 is coaxial with the tool of the processing device. The positioning clamping assembly cooperates with the processing positioning groove 5 to clamp the product to be processed. The processing device is a common electric-driven processing device on the market that is loaded with a chamfering cutter or a tap.

[0031] In this embodiment, the positioning and clamping assembly includes a driving cylinder 6, a clamping block 7, a limit block 8 and a transmission rod 9. The clamping block 7 is fixedly connected to the movable end of the driving cylinder 6, and the limit block 8 is transmission-connected to the movable end of the driving cylinder 6 through the transmission rod 9. The side of the feed chute 4 away from the processing positioning groove 5 is provided with a first through hole 10 adapted to the clamping block 7, the end of the clamping block 7 is provided with a first limit groove 11 matched with the processing positioning groove 5, the bottom of the processing positioning groove 5 is provided with a second through hole 12 matched with the limit block 8, the end of the limit block 8 is provided with a second limit groove 13, and the limit block 8 is close to the output end of the feed chute 4.

[0032] In this embodiment, the clamping block 7 is fixedly connected to the movable end of the driving cylinder 6 by a stud bolt, and a first screw 14 is provided at the end of the transmission rod 9 away from the limit block 8, and a sliding sleeve 15 is sleeved on the first screw 14. Two first locking nuts 16 are also provided on the first screw 14, and the two first locking nuts 16 are respectively located at the two ends of the sliding sleeve 15. A sliding hole 17 adapted to the sliding sleeve 15 is provided at the lower end of the clamping block 7, and the length of the sliding sleeve 15 is greater than the length of the sliding hole 17.

[0033] In this embodiment, a stepped hole 18 adapted to the transmission rod 9 is provided in the base 3, a limiting truncated cone 19 is provided on the transmission rod 9, a reset spring 20 is sleeved on the transmission rod 9, and the reset spring 20 is located between the stepped hole 18 and the limiting truncated cone 19.

[0034] In this embodiment, a limiting bolt 21 is further provided on the limiting block 8 , and the end of the limiting bolt 21 cooperates with the side surface of the base 3 .

[0035] In this embodiment, the first limiting groove 11 and the second limiting groove 13 are both arc grooves, and the distance between the arc center of the first limiting groove 11 and the arc center of the second limiting groove 13 in the length direction of the feeding chute 4 is the diameter of the product to be processed.

[0036] In this embodiment, a second screw 22 is provided at one end of the transmission rod 9 away from the driving cylinder 6, and the second screw 22 passes through the limit block 8. Two second locking nuts 23 are also provided on the second screw 22, and the two second locking nuts 23 are respectively located at both ends of the limit block 8. The transmission rod 9, the second screw 22 and the first screw 14 are integrally formed.

[0037] In this embodiment, a push block 24 cooperating with the processing positioning groove 5 is provided on the limiting block 8, the second through hole 12 is connected with the processing positioning groove 5, and the push block 24 cooperates with the lower side surface of the product.

[0038] In this embodiment, three groups of photoelectric sensors 25 cooperating with the feed chute 4 are provided on the base 3. The three groups of photoelectric sensors 25 are respectively located at the input end of the feed chute 4, the input side of the clamp 7 and the middle of the first two groups of photoelectric sensors 25.

[0039] In this embodiment, a dust cover 26 is provided on the feed chute 4, and the dust cover 26 is fixedly connected to the base 3. A processing hole 27 connected to the processing positioning groove 5 is provided on the dust cover 26, and the edge of the processing hole 27 is chamfered.

[0040] In this embodiment, the bottom surface of the feed chute 4 is provided with an output hole 28 that passes through the base 3, and the output hole 28 is located between the end of the feed chute 4 away from the vibration plate 2 and the limit block 8. The frame 1 is also provided with a collecting trough and a discharging chute 29, and the input end of the discharging chute 29 is located directly below the output hole 28, and the output end of the discharging chute 29 is located above the collecting trough.

[0041] Working principle of the present invention:

[0042] When the three groups of photoelectric sensors 25 are not triggered, the vibration plate 2 is activated to transport the material to the feed chute 4. When the material enters the feed chute 4, it slides downward along the slope under the action of gravity and then slides to the top of the clamping block 7. The clamping block 7 blocks the material from falling further. The driving cylinder 6 and the processing device will not be activated until at least one group of the photoelectric sensors 25 is in the triggered state.

[0043] When processing is required, the driving cylinder 6 is started to first drive the clamping block 7 to approach the processing positioning groove 5. During the approaching process, the first limiting groove 11 contacts the outer edge of the material and pushes it to approach the processing positioning groove 5. After the clamping block 7 slides a certain distance on the sliding sleeve 15, it drives the transmission rod 9 to move, and at the same time compresses the return spring 19, and the limiting block 8 is forced to retract into the second through hole 12. The material is clamped by the first limiting groove 11 and the processing positioning groove 5. The processing device chamfers or taps the inner hole of the material.

[0044] After the processing is completed, the driving cylinder 6 retracts, the clamping block 7 retracts into the first through hole 10, and the limit block 8 extends out of the second through hole 12 to block the processed product. When the driving cylinder 6 extends again, the limit block 8 retracts under force, and the processed product is released and slides to the output hole 28 and falls, and then falls into the collection tank through the discharge chute 29.

Claims

1. High-precision machining equipment, characterized by: The invention comprises a frame (1), a vibration plate (2), a base (3), a positioning clamping assembly and a processing device fixed on the frame (1); the base (3) is provided with a feed chute (4) docking with the output end of the vibration plate (2); the bottom surface of the feed chute (4) is inclined downward in a direction away from the vibration plate (2); one side of the feed chute (4) is provided with a processing positioning groove (5); the processing positioning groove (5) is a circular arc groove; the processing positioning groove (5) is aligned with the processing device. The tool is coaxial, the positioning clamping assembly cooperates with the processing positioning groove (5) to clamp the product to be processed, the positioning clamping assembly comprises a driving cylinder (6), a clamping block (7), a limit block (8) and a transmission rod (9), the clamping block (7) is fixedly connected to the movable end of the driving cylinder (6), the limit block (8) is transmission-connected to the movable end of the driving cylinder (6) through the transmission rod (9), and the feeding chute (4) is provided with a side thereof away from the processing positioning groove (5) and connected to the clamping block (7). ), the end of the clamping block (7) is provided with a first limiting groove (11) matching with the processing positioning groove (5), the bottom of the processing positioning groove (5) is provided with a second through hole (12) matching with the limiting block (8), the end of the limiting block (8) is provided with a second limiting groove (13), the limiting block (8) is close to the output end of the feed chute (4), the clamping block (7) is fixedly connected to the movable end of the driving cylinder (6) by a stud bolt, and the transmission rod (9) A first screw rod (14) is provided at one end away from the limit block (8), a sliding sleeve (15) is sleeved on the first screw rod (14), and two first locking nuts (16) are also provided on the first screw rod (14), and the two first locking nuts (16) are respectively located at two ends of the sliding sleeve (15), and a sliding hole (17) adapted to the sliding sleeve (15) is provided at the lower end of the clamping block (7), and the length of the sliding sleeve (15) is greater than the length of the sliding hole (17).

2. The high-precision machining equipment according to claim 1, characterized in that: The base (3) is provided with a stepped hole (18) adapted to the transmission rod (9), the transmission rod (9) is provided with a limiting truncated table (19), the transmission rod (9) is sleeved with a return spring (20), and the return spring (20) is located between the stepped hole (18) and the limiting truncated table (19).

3. The high-precision machining equipment according to claim 1, characterized in that: The limiting block (8) is also provided with a limiting bolt (21), and the end of the limiting bolt (21) cooperates with the side surface of the base (3).

4. The high-precision machining equipment according to claim 2, characterized in that: The first limiting groove (11) and the second limiting groove (13) are both arc grooves, and the distance between the arc center of the first limiting groove (11) and the arc center of the second limiting groove (13) in the length direction of the feed chute (4) is the diameter of the product to be processed.

5. The high-precision machining equipment according to claim 1, characterized in that: A second screw rod (22) is provided at one end of the transmission rod (9) away from the driving cylinder (6), the second screw rod (22) passes through the limit block (8), and two second locking nuts (23) are also provided on the second screw rod (22), the two second locking nuts (23) are respectively located at two ends of the limit block (8).

6. The high-precision machining equipment according to claim 1, characterized in that: The limit block (8) is provided with a push block (24) that cooperates with the processed positioning groove (5), the second through hole (12) is communicated with the processed positioning groove (5), and the push block (24) cooperates with the lower side surface of the product.

7. The high-precision machining equipment according to claim 1, characterized in that: The base (3) is provided with a plurality of groups of photoelectric sensors (25) that cooperate with the feed chute (4).

8. The high-precision machining equipment according to claim 1, characterized in that: The feed chute (4) is provided with a dust cover (26), the dust cover (26) is fixedly connected to the base (3), and the dust cover (26) is provided with a processing hole (27) connected to the processing positioning groove (5), and the edge of the processing hole (27) is chamfered.

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