Quick positioning device for lathing concave-convex surface flange piece

Abstract

The utility model discloses a quick positioning device for turning a concave-convex surface flange piece, which comprises a four-jaw chuck for clamping the concave-convex surface flange piece, and a positioning support mechanism is arranged on the working surface of the four-jaw chuck close to the concave-convex surface flange piece and is used for positioning and matching the concave-convex surface flange piece; the positioning and supporting mechanism comprises a plurality of T-shaped bases. According to the utility model, the workpiece is clamped by the four-jaw chuck, rapid positioning of the workpiece is realized in cooperation with the positioning and supporting mechanism, whether the workpiece is parallel to the working surface of the four-jaw chuck can be measured after the workpiece is pre-clamped, and when the parallelism is poor, the position of the supporting block is changed by changing the screwing depth of the adjusting screw rod in the bolt hole, so that the workpiece can be accurately positioned. The device is suitable for being used when the concave-convex face flange pieces of different specifications are used, rapid material correction and positioning are achieved, the clamping and alignment time can be saved, the workload of workers is relieved, and economic losses caused by work alignment errors are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a rapid positioning device for turning concave and convex flange parts. Background Art

[0002] In processing Figure 1 When the concave-convex flange 01 shown in the figure is removed from the mold cavity, it does not meet the required precision and needs to be fine-machined using a cutting machine. Using a machine tool with a chuck mechanism, the concave-convex flange 01 is first clamped and fixed, and then cut using a cutting tool.

[0003] Because the casting surface of the concave-convex flange 01 is uneven, it cannot be quickly aligned when clamped using the chuck mechanism. The existing technology suffers from poor parallelism and slow alignment after the concave-convex flange 01 is placed, affecting production efficiency. Furthermore, the end face of the concave-convex flange 01 is close to the chuck, requiring re-clamping and machining on the side closest to the chuck mechanism, further impacting processing efficiency and accuracy.

[0004] Therefore, it is necessary to develop a rapid positioning device for machining concave and convex flanges. Utility Model Content

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and to provide a rapid positioning device for machining concave and convex flanges, so as to solve the technical problems raised in the background art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A rapid positioning device for machining concave-convex flanges, comprising a four-jaw chuck for clamping the concave-convex flanges, wherein a positioning support mechanism is provided on a working surface of the four-jaw chuck close to the concave-convex flanges for positioning and fitting the concave-convex flanges;

[0008] The positioning support mechanism includes:

[0009] A plurality of T-shaped bases are slidably connected in a plurality of T-shaped slots provided on the four-jaw chuck in a one-to-one correspondence. Bolt holes are provided on the T-shaped bases, and a movable sleeve is fixedly connected to the bottom end of the T-shaped bases.

[0010] A plurality of adjusting screws are threadedly connected to the bolt holes of the plurality of T-shaped bases in a one-to-one correspondence, and a support block is provided at one end of the adjusting screw away from the T-shaped base;

[0011] The screw rod is rotatably connected to the four-jaw chuck and is located at the bottom of the T-slot. The screw rod corresponds to the movable sleeve one by one and drives the movable sleeve in cooperation.

[0012] The drive motor is fixedly installed in the axial center cavity of the four-jaw chuck. The output shaft of the drive motor is fixedly connected to the driving bevel gear. The ends of multiple screw rods extend to the axial center cavity of the four-jaw chuck and are fixedly connected to the driven bevel gears, and the multiple driven bevel gears are all engaged with the driving bevel gear for transmission.

[0013] Preferably, the plurality of T-slots are distributed in a circular array, and the plurality of T-slots are staggered with the four jaws of the four-jaw chuck.

[0014] Preferably, a plurality of driven bevel gears arranged corresponding to the plurality of T-slots are distributed in a ring array outside the driving bevel gear, and each screw connected to the plurality of driven bevel gears is arranged parallel to the working surface of the four-jaw chuck.

[0015] Preferably, the support block and the adjusting screw are detachably mounted via threads, and the exterior of the support block is made of rubber.

[0016] Preferably, a groove is formed at one end of the T-slot close to the axial cavity of the four-jaw chuck, and the other end of the T-slot passes through the outer wall of the four-jaw chuck.

[0017] Preferably, a proximity sensor is installed in the groove for sensing a proximity signal of the T-shaped base;

[0018] The connection end of the proximity sensor is electrically connected to the processor, and the input end and output end of the processor are electrically connected to the A / D converter and the D / A converter respectively. The proximity sensor is electrically connected to the A / D converter, and the drive motor is electrically connected to the D / A converter.

[0019] Preferably, a radial scale bar is provided on the working surface of the four-jaw chuck and located on the side of the T-slot.

[0020] Preferably, an axial scale bar is provided on the outer side of the adjusting screw.

[0021] Preferably, the jaws of the four-jaw chuck are configured as a replaceable structure.

[0022] Preferably, the side of the four-jaw chuck away from the working surface is mounted on an external machine tool through a flange.

[0023] The utility model has the following beneficial effects:

[0024] The workpiece is clamped by a four-jaw chuck and quickly positioned in conjunction with a positioning support mechanism. After the workpiece is pre-clamped, it is possible to measure whether the workpiece is parallel to the working surface of the four-jaw chuck. When the parallelism is poor, the position of the support block is changed by changing the screw-in depth of the adjusting screw in the bolt hole to achieve alignment of the concave and convex flanges. This device is suitable for use with concave and convex flanges of different specifications, enabling rapid calibration and positioning, saving time in clamping and alignment, reducing the workload of staff, and reducing economic losses caused by alignment errors.

[0025] By adjusting the variable length of the screw, space for the tool's running trajectory is reserved without turning over. When the workpiece is clamped, the position of the support block is adjusted through the driving structure of the T-shaped base, thereby reducing the processing blind area and achieving one-time clamping and overall processing, improving processing efficiency and accuracy. The proximity sensor senses the position of the T-shaped base and feeds back the signal to the processor to avoid mold collision and improve the safety of the device during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an effect diagram of the use state of the rapid positioning device provided by the utility model;

[0027] Figure 2 A first-perspective stereoscopic view of the rapid positioning device provided by the utility model;

[0028] Figure 3 A second perspective stereoscopic image of the rapid positioning device provided by the utility model;

[0029] Figure 4 A top view of the rapid positioning device provided by the utility model;

[0030] Figure 5 For this utility model Figure 4 AA-section structural stereogram;

[0031] Figure 6 For this utility model Figure 4 Middle BB section view;

[0032] Figure 7 An exploded view of the rapid positioning device provided by the utility model;

[0033] Figure 8 This is a control flow chart of the automatic control system of the rapid positioning device provided by the utility model.

[0034] Among them are:

[0035] Concave and convex flange-01;

[0036] Four-jaw chuck-1; T-shaped base-2; T-shaped slot-3; bolt hole-4; movable sleeve-5; adjusting screw-6; support block-7; screw-8; drive motor-9; driving bevel gear-10; driven bevel gear-11; claw-12; groove-13; proximity sensor-14; processor-15; flange-16. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0038] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of a component and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are merely for illustrative purposes and do not limit the scope of protection of the present invention.

[0039] like Figure 1-6 As shown, a rapid positioning device for machining concave-convex flanges includes a four-jaw chuck 1 for clamping the concave-convex flange 01. A positioning support mechanism is provided on the working surface of the four-jaw chuck 1 near the concave-convex flange 01 for positioning and matching the concave-convex flange 01.

[0040] The positioning support mechanism includes:

[0041] Multiple T-shaped bases 2 are slidably connected to multiple T-shaped slots 3 provided on the four-jaw chuck 1 in a one-to-one correspondence. Bolt holes 4 are provided on the T-shaped bases 2. A movable sleeve 5 is fixedly connected to the bottom end of the T-shaped bases 2.

[0042] Multiple adjusting screws 6 are threadedly connected to the bolt holes 4 of the multiple T-shaped bases 2 in a one-to-one correspondence. A support block 7 is provided at one end of the adjusting screw 6 away from the T-shaped base 2. The length of the adjusting screw 6 can be planned and replaced according to actual needs;

[0043] The screw rod 8 is rotatably connected to the four-jaw chuck 1 and is located at the bottom of the T-slot 3. The screw rod 8 corresponds to the movable sleeve 5 one by one and drives the movable sleeve 5;

[0044] The driving motor 9 is fixedly installed in the axial cavity of the four-jaw chuck 1. The output shaft of the driving motor 9 is fixedly connected to the active bevel gear 10. The ends of multiple screw rods 8 extend to the axial cavity of the four-jaw chuck 1 and are fixedly connected to the driven bevel gear 11. The multiple driven bevel gears 11 are all engaged with the active bevel gear 10 for transmission, and the multiple driven bevel gears 11 corresponding to the multiple T-slots 3 are distributed in a ring array on the outside of the active bevel gear 10, and the multiple screw rods 8 connected to the multiple driven bevel gears 11 are all arranged parallel to the working surface of the four-jaw chuck 1, so as to facilitate the synchronous movement of multiple T-shaped bases 2 on multiple screw rods 8.

[0045] Specifically, the plurality of T-slots 3 are distributed in a ring array, and the plurality of T-slots 3 are staggered with the four jaws 12 of the four-jaw chuck 1 , and there is no interference between the two.

[0046] Specifically, the support block 7 and the adjusting screw 6 are detachably mounted via threads, and the exterior of the support block 7 is made of rubber material, which protects the concave and convex flange 01 and avoids the hidden danger of hard materials scratching the surface of the workpiece.

[0047] Specifically, a groove 13 is provided at one end of the T-slot 3 close to the axial cavity of the four-jaw chuck 1, and the other end of the T-slot 3 passes through the outer wall of the four-jaw chuck 1. The T-slot 3 with one end open can facilitate the removal of the T-base 2 for maintenance.

[0048] like Figure 8 As shown, a proximity sensor 14 is installed in the groove 13 for sensing the proximity signal of the T-shaped base 2; the connection end of the proximity sensor 14 is electrically connected to the processor 15, and the input end and output end of the processor 15 are electrically connected to the A / D converter and the D / A converter respectively, and the proximity sensor 14 is electrically connected to the A / D converter, and the drive motor 9 is electrically connected to the D / A converter. When the adjusting screw 6 moves from the outside to the inside, the proximity sensor 14 senses that the T-shaped base 2 is about to hit the side wall of the end of the T-shaped slot 3, a feedback signal is given to the processor 15, and the drive motor 9 is actively controlled to stop to avoid mold collision and improve the safety of the device during adjustment.

[0049] Specifically, a radial scale bar is provided on the working surface of the four-jaw chuck 1 and located on the side of the T-slot 3 to facilitate observation of the position of the adjustment screw 6 so as to adjust it according to the size of the concave and convex flange 01.

[0050] Specifically, an axial scale bar is provided on the outside of the adjusting screw 6 to facilitate observation of the exposed length of the adjusting screw 6 .

[0051] like Figure 7As shown, the jaws 12 of the four-jaw chuck 1 are set as a replaceable structure. The jaws 12 will inevitably wear out during use. When the wear of the jaws 12 affects the clamping calibration accuracy, it is usually necessary to replace the jaws 12. The replacement structure provided in this embodiment is as shown in FIG. Figure 3 、 Figure 6 and Figure 7 As shown, the bottom of the claw 12 is detachably connected via a support rod, an external thread and a nut, so as to facilitate replacement and maintenance.

[0052] Specifically, the side of the four-jaw chuck 1 away from the working surface is installed on the external machine tool through the flange 16. The overall structure is convenient for disassembly and maintenance, and the use specifications of the device can be adjusted according to the size of the concave and convex flange part 01.

[0053] When the device is in use, the four claws 12 of the four-jaw chuck 1 are first expanded outward so that the clamping area between the four claws 12 is larger than the outer diameter of the clamped area of ​​the concave-convex flange 01. According to the overall outer diameter of the concave-convex flange 01, the positions of the multiple adjusting screws 6 are adjusted. Specifically, the drive motor 9 is started, and its output end drives the active bevel gear 10, which synchronously meshes and drives the multiple driven bevel gears 11. At this time, the multiple screws 8 drive the multiple T-shaped bases 2 to synchronously retract toward the axis of the four-jaw chuck 1 or to synchronously expand outward, so that the multiple support blocks 7 can contact the surface of the concave-convex flange 01 when it is installed;

[0054] After the adjustment is completed, the concave-convex flange 01 is hoisted to the front end of the four-jaw chuck 1 and pushed close to the jaws 12. The clamped area of ​​the concave-convex flange 01 enters the clamping area between the four jaws 12 until the support block 7 abuts and supports the side of the concave-convex flange 01. At this time, the four jaws 12 are adjusted to retract inward at the same time to pre-clamp the concave-convex flange 01, and the contact degree between the multiple support blocks 7 and the concave-convex flange 01 is observed. In combination with the measuring instrument, the distance between the side wall of the concave-convex flange 01 and the working surface of the four-jaw chuck 1 is measured in a circular shape to determine whether the concave-convex flange 01 and the working surface of the four-jaw chuck 1 are parallel. If the parallelism is poor, the position of the support block 7 is changed by changing the screw-in depth of the adjusting screw 6 in the bolt hole 4, thereby achieving the alignment of the concave-convex flange 01.

[0055] After alignment, the surface of the concave and convex flange 01 is cut using a cutting tool. Since the length of the adjusting screw 6 reserves space for the tool's running trajectory, both sides and the outer ring side of the concave and convex flange 01 can be processed without turning it over. In the clamping state, the driving structure of the T-type base 2 is used to start the driving motor 9, so that the T-type base 2 can drive the adjusting screw 6 and the support block 7 to change position, thereby reducing the processing blind area and realizing the overall processing in one clamping, thereby improving the processing efficiency and accuracy. During adjustment, when the proximity sensor 14 senses that the T-type base 2 is about to hit the side wall of the end of the T-slot 3, it feeds back a signal to the processor 15 and actively controls the driving motor 9 to stop, so as to avoid mold collision and improve the safety of the device during adjustment.

[0056] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A rapid positioning device for machining concave-convex flanges, comprising a four-jaw chuck (1) for clamping the concave-convex flange (01), characterized in that: A positioning support mechanism is provided on the working surface of the four-jaw chuck (1) close to the concave-convex flange (01), for positioning and matching the concave-convex flange (01); The positioning support mechanism includes: A plurality of T-shaped bases (2) are slidably connected one by one to a plurality of T-shaped slots (3) provided on the four-jaw chuck (1); a bolt hole (4) is provided on the T-shaped base (2); and a movable sleeve (5) is fixedly connected to the bottom end of the T-shaped base (2); A plurality of adjusting screws (6) are threadedly connected to the bolt holes (4) of the plurality of T-shaped bases (2) in a one-to-one correspondence, and a support block (7) is provided at one end of the adjusting screw (6) away from the T-shaped base (2); A screw rod (8) is rotatably connected to the four-jaw chuck (1) and is located at the bottom of the T-slot (3), wherein the screw rod (8) corresponds to the movable sleeve (5) one by one and drives the movable sleeve (5); A drive motor (9) is fixedly mounted in the axial center cavity of the four-jaw chuck (1), and an output shaft of the drive motor (9) is fixedly connected to a driving bevel gear (10). Ends of a plurality of screw rods (8) extend to the axial center cavity of the four-jaw chuck (1) and are fixedly connected to driven bevel gears (11), and the plurality of driven bevel gears (11) are all meshed with the driving bevel gear (10) for transmission.

2. A rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: The plurality of T-slots (3) are distributed in a ring array, and the plurality of T-slots (3) and the four jaws (12) of the four-jaw chuck (1) are distributed in an alternating manner.

3. The rapid positioning device for machining concave and convex flanges according to claim 2, characterized in that: A plurality of driven bevel gears (11) arranged corresponding to the plurality of T-slots (3) are distributed in a ring array outside the driving bevel gear (10), and each screw rod (8) connected to the plurality of driven bevel gears (11) is arranged parallel to the working surface of the four-jaw chuck (1).

4. The rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: The support block (7) and the adjusting screw (6) are detachably mounted via threads, and the exterior of the support block (7) is made of rubber.

5. The rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: A groove (13) is provided at one end of the T-slot (3) close to the axial center cavity of the four-jaw chuck (1), and the other end of the T-slot (3) passes through the outer side wall of the four-jaw chuck (1).

6. A rapid positioning device for machining concave and convex flanges according to claim 5, characterized in that: A proximity sensor (14) is installed in the groove (13) for sensing a proximity signal of the T-shaped base (2); The connection end of the proximity sensor (14) is electrically connected to the processor (15), and the input end and output end of the processor (15) are electrically connected to an A / D converter and a D / A converter respectively, and the proximity sensor (14) is electrically connected to the A / D converter, and the drive motor (9) is electrically connected to the D / A converter.

7. The rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: The working surface of the four-jaw chuck (1) is provided with a radial scale bar located on the side of the T-slot (3).

8. The rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: An axial scale bar is provided on the outside of the adjusting screw (6).

9. The rapid positioning device for machining concave and convex flanges according to claim 2, characterized in that: The clamping jaws (12) of the four-jaw chuck (1) are configured as a replaceable structure.

10. The rapid positioning device for machining concave and convex flanges according to claim 1, characterized in that: The side of the four-jaw chuck (1) away from the working surface is mounted on an external machine tool via a flange (16).

Images