CNC positioning device for terminal processing

Abstract

The utility model discloses a CNC (computer numerical control) positioning device for terminal processing, which relates to the technical field of processing and positioning and comprises a positioning tool. The positioning tool comprises a movable tool and a fixed tool which are symmetrical. Two semicircular holes are formed in each of the movable tool and the fixed tool; an internal thread is arranged in a round hole formed in the center of the movable tool. The bottom of the fixing tool is fixedly installed on the supporting base. A bolt is installed in a round hole formed in the center of the fixing tool in a matched mode. During use, a workpiece is placed on the limiting table in the semicircular hole, so that the machining position of the workpiece is effectively and accurately positioned, a worker rotates a bolt through an internal hexagonal wrench, the bolt is matched with an internal thread arranged in the movable tool, and the movable tool moves towards the fixed tool in the moving process; and a guide column arranged on the movable tool is inserted into a guide hole formed in the fixed tool, so that the stability when the movable tool is matched with the fixed tool is effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates specifically to processing positioning technical field, specifically a terminal processing uses CNC positioning device. BACKGROUND

[0002] The CNC positioning device is a very key part in the CNC equipment, which can accurately determine the position of the workpiece, so as to ensure the precision and quality of processing;

[0003] The existing positioning device usually adopts three-jaw chuck or bench vice to realize the positioning and clamping of the workpiece when working, so that the workpiece is always in the same machining angle after clamping and fixing, so that the three-jaw chuck or bench vice cannot realize the effect of angular deflection of the workpiece when the tool processes the workpiece at other angles, and the workpiece needs to be processed twice, which reduces the processing efficiency, and the size of the workpiece may change during the secondary processing.

[0004] After searching, the Chinese patent publication No. CN201920507519.7 discloses a horizontal CNC positioning device; including hydraulic motor, workpiece, the diameter of the hydraulic motor's inner plug shaft matches the diameter of the workpiece to be processed, the two ends of the hydraulic motor are provided with spring three-jaw, the spring three-jaw is sleeved on the workpiece and is embeddedly fixed on the two ends of the hydraulic motor's inner plug shaft;

[0005] The positioning device in the above-mentioned patent can only realize the machining of the surface of the rotary part by arranging the cutter when machining the workpiece; when the end of the workpiece needs to be processed after positioning, the hydraulic motor and spring three-jaw in the above-mentioned patent cannot realize the deflection of the workpiece processing angle, so the end of the workpiece needs to be processed by other equipment, which may change the processing size of the workpiece during the secondary clamping, and cannot effectively ensure the coaxiality of the same workpiece during the two clamping. UTILITY MODEL CONTENTS

[0006] The purpose of this invention is to provide a CNC positioning device for terminal processing. In this structure, the workpiece to be processed is placed in a semi-circular hole opened on a movable fixture and a fixed fixture. The processing position of the workpiece is limited by a limiting stage. The movable fixture and the fixed fixture are clamped and fixed by rotating the bolts with an Allen wrench. During processing, a rotary cylinder drives the mounting base and the support base to rotate the positioning fixture at a certain angle, thereby effectively meeting the different processing angles of the tool during processing. At the same time, the drive device inside the first housing realizes the overall deflection of the second housing. In this way, the processing state of the workpiece at different angles is effectively met during processing, which facilitates the one-time processing of the workpiece and improves processing efficiency, thereby solving the problems of the above-mentioned background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A CNC positioning device for terminal processing includes a positioning fixture. The positioning fixture comprises two symmetrically arranged movable fixtures and a fixed fixture. Both the movable and fixed fixtures have two semi-circular holes. An internal thread is provided in the central hole of the movable fixture. A guide post is integrally formed on the side wall of the movable fixture near the fixed fixture. The bottom of the fixed fixture is fixedly mounted on a support base. A bolt is fitted into the central hole of the fixed fixture. When positioning and clamping a workpiece, the workpiece is first placed on a limiting platform within the semi-circular holes. By rotating the bolt, the engagement between the bolt and the internal thread is achieved, allowing the movable fixture to move towards one side of the fixed fixture, thus achieving the positioning and clamping of the workpiece.

[0009] Both the movable and fixed fixtures have semi-circular holes with limiting platforms inside; multiple limiting platforms are on the same plane; calipers are fixedly installed on the side wall of the fixed fixture; pointers are provided on the side wall of the movable fixture; the calipers and pointers are located on the same side; thus, when positioning and clamping the workpiece, the value pointed to by the pointer effectively ensures that each workpiece is clamped with the same clamping force, avoiding excessive or insufficient clamping force.

[0010] As a further technical solution of this utility model, the support seat is fixedly installed inside the mounting seat; the mounting seat is fixedly installed with the rotary cylinder. During the processing of the workpiece, when the mounting seat is rotated by the rotary cylinder, the support seat simultaneously rotates the positioning fixture, which effectively meets the needs of different processing angles of the workpiece during the processing and facilitates the processing and shaping of the tool.

[0011] As a further technical solution of this utility model, the rotary cylinder is fixedly installed on the top of the inner side of the second housing; both ends of the second housing are movably installed with the first housing and the L-shaped mounting plate through rotating shafts; during the processing, the second housing swings to both sides under the action of the rotating shafts, thereby effectively meeting the different processing angles of the workpiece during processing;

[0012] As a further technical solution of this utility model, a driving device is installed inside the first box; the first box is fixedly mounted on an L-shaped mounting plate; a negative pressure pipe is installed on the side of the L-shaped mounting plate away from the second box; the negative pressure pipe passes through the L-shaped mounting plate and the side wall of the second box and is connected to the rotary cylinder.

[0013] As a further technical solution of this utility model, the bolt surface is connected to the internal thread provided inside the movable tooling; one end of the bolt is engaged with an internal hex wrench.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the workpiece is placed on the limiting platform inside the semi-circular hole, thereby effectively and accurately positioning the workpiece in the processing position. The operator rotates the bolt with an Allen wrench to achieve the engagement of the bolt with the internal thread set inside the movable fixture, so that the movable fixture can move to the fixed fixture. During the movement, the guide post set on the movable fixture is inserted into the guide hole opened on the fixed fixture, effectively ensuring the stability of the movable fixture and the fixed fixture when they are engaged.

[0016] 2. In this utility model, when positioning and clamping, the movable fixture and the fixed fixture are respectively provided with a pointer and a caliper on the same side. By using the value pointed to by the pointer on the movable fixture, the same clamping force is ensured when the workpiece is clamped, so as to avoid the workpiece being damaged due to excessive clamping force or the workpiece shaking during processing due to insufficient clamping force.

[0017] 3. In the processing of this utility model, the positioning fixture is fixedly installed with the rotary cylinder through the support base and the mounting base. The rotary cylinder can realize the alternating processing between the two workpieces on the positioning fixture. At the same time, when the rotary cylinder drives the positioning fixture to rotate, it can also effectively meet the different processing angles of the cutting tool.

[0018] 4. In this utility model, a rotary cylinder is fixedly installed on the top of the inner side of the second housing. The two ends of the second housing are respectively movably installed with the drive device and the L-shaped mounting plate inside the first housing. The drive device realizes the swing of the second housing through the rotating shaft. During the swing of the second housing, the workpiece installed on the positioning fixture swings at the same time. In this way, the different processing angle requirements of the workpiece are effectively met during the processing, thereby effectively realizing the tool clamping and processing of the workpiece in one operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This utility model Figure 1 Another perspective structural diagram.

[0021] Figure 3 This utility model Figure 1 The dominant eye.

[0022] Figure 4 This is an assembly drawing of the first housing, the second housing, and the L-shaped mounting plate in this utility model.

[0023] Figure 5 This utility model Figure 1 Schematic diagram of the internal structure assembly of the second box.

[0024] Figure 6 This utility model Figure 5 Bottom view of the structure.

[0025] Figure 7 This utility model Figure 5 A breakdown diagram.

[0026] Figure 8 This utility model Figure 3 The main view of the positioning fixture.

[0027] In the diagram: 1-First housing, 2-Second housing, 3-L-shaped mounting plate, 4-Negative pressure pipe, 5-Positioning fixture, 50-Moving fixture, 500-Internal thread, 501-Guide post, 51-Fixing fixture, 510-Guide hole, 52-Limiting platform, 53-Bolt, 54-Caliper, 55-Pointer, 56-Semicircular hole, 6-Mounting base, 7-Support base, 8-Rotary cylinder, 9-Hex wrench. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-8 In this embodiment of the present invention, a CNC positioning device for terminal processing includes a positioning fixture 5; the positioning fixture 5 includes two symmetrically arranged movable fixtures 50 and a fixed fixture 51; both the movable fixture 50 and the fixed fixture 51 have two semi-circular holes 56; wherein, the circular hole in the center of the movable fixture 50 is provided with an internal thread 500; a guide post 501 is integrally provided on the side wall of the movable fixture 50 near the fixed fixture 51; the bottom of the fixed fixture 51 is fixedly mounted on a support base 7; a bolt 53 is fitted into the circular hole in the center of the fixed fixture 51.

[0030] Each of the semi-circular holes 56 on the movable fixture 50 and the fixed fixture 51 is provided with a limiting platform 52; multiple limiting platforms 52 are on the same plane; a caliper 54 is fixedly installed on the side wall of the fixed fixture 51; a pointer 55 is provided on the side wall of the movable fixture 50; the caliper 54 and the pointer 55 are located on the same side.

[0031] By adopting the above technical solution, when in use, the workpiece is placed on the limiting platform 52 inside the semi-circular hole 56, thereby effectively and accurately positioning the processing position of the workpiece. The operator rotates the bolt 53 with the internal hex wrench 9 to make the bolt 53 engage with the internal thread 500 set inside the movable fixture 50, so that the movable fixture 50 can move towards the fixed fixture 51. During the movement, the guide post 501 set on the movable fixture 50 is inserted into the guide hole 510 opened on the fixed fixture 51, effectively ensuring the stability of the movable fixture 50 and the fixed fixture 51 when they are engaged.

[0032] The bottom of the support base 7 is fixedly installed inside the mounting base 6; the mounting base 6 is fixedly installed with the rotary cylinder 8.

[0033] In this embodiment, the rotary cylinder 8 is fixedly installed on the top of the inner side of the second housing 2; both ends of the second housing 2 are movably installed with the first housing 1 and the L-shaped mounting plate 3 via rotating shafts.

[0034] By adopting the above technical solution, when positioning and clamping, the movable fixture 50 and the fixed fixture 51 are respectively provided with pointer 55 and caliper 54 on the same side. By the value pointed to by pointer 55 on the movable fixture 50, the same clamping force is ensured when the workpiece is clamped, so as to avoid the workpiece being damaged due to excessive clamping force or the workpiece shaking during processing due to insufficient clamping force.

[0035] Furthermore, during the machining process, the positioning fixture 5 is fixedly installed with the rotary cylinder 8 through the support base 7 and the mounting base 6. The rotary cylinder 8 can realize the alternating machining between the two workpieces on the positioning fixture 5. At the same time, when the rotary cylinder 8 drives the positioning fixture 5 to rotate, it can also effectively meet the different machining angles of the cutting tool.

[0036] In this embodiment, a drive device is installed inside the first housing 1; the bottom of the first housing 1 is fixedly installed on the L-shaped mounting plate 3; a negative pressure pipe 4 is installed on the side of the L-shaped mounting plate 3 away from the second housing 2; the negative pressure pipe 4 passes through the side wall of the L-shaped mounting plate 3 and the second housing 2 and is connected to the rotary cylinder 8; the bottom of the L-shaped mounting plate 3 is fixedly installed on the workbench.

[0037] The surface of the bolt 53 is connected to the internal thread 500 provided inside the movable tooling 50; one end of the bolt 53 is connected to the internal hex wrench 9.

[0038] By adopting the above technical solution, the rotary cylinder 8 is fixedly installed on the top of the inner side of the second housing 2. The two ends of the second housing 2 are respectively movably installed with the drive device and the L-shaped mounting plate 3 inside the first housing 1. The drive device realizes the swing of the second housing 2 through the rotating shaft. During the swing of the second housing 2, the workpiece installed on the positioning fixture 5 swings at the same time. In this way, the different processing angle requirements of the workpiece are effectively met during the processing, thereby effectively realizing the tool clamping and processing of the workpiece in one go.

[0039] The working principle of this utility model is as follows: When in use, the workpiece is placed on the limiting platform 52 inside the semi-circular hole 56, thereby effectively and accurately positioning the processing position of the workpiece. The operator rotates the bolt 53 with the internal hex wrench 9 to make the bolt 53 engage with the internal thread 500 set inside the movable fixture 50, so that the movable fixture 50 can move towards the fixed fixture 51. During the movement, the guide post 501 set on the movable fixture 50 is inserted into the guide hole 510 opened on the fixed fixture 51, effectively ensuring the stability of the movable fixture 50 and the fixed fixture 51 when they are engaged.

[0040] When positioning and clamping, the movable fixture 50 and the fixed fixture 51 are respectively equipped with a pointer 55 and a caliper 54 on the same side. By using the value pointed to by the pointer 55 on the movable fixture 50, the same clamping force is ensured when the workpiece is clamped, so as to avoid excessive clamping force, which may cause damage to the workpiece, or insufficient clamping force, which may cause the workpiece to shake during processing.

[0041] During the processing, the positioning fixture 5 is fixedly installed with the rotary cylinder 8 through the support base 7 and the mounting base 6. The rotary cylinder 8 can realize the alternating processing between the two workpieces on the positioning fixture 5. At the same time, when the rotary cylinder 8 drives the positioning fixture 5 to rotate, it can also effectively meet the different processing angles of the cutting tool.

[0042] The rotary cylinder 8 is fixedly installed on the top of the inner side of the second housing 2. The two ends of the second housing 2 are movably installed with the drive device and the L-shaped mounting plate 3 inside the first housing 1, respectively. The drive device realizes the swing of the second housing 2 through the rotating shaft. During the swing of the second housing 2, the workpiece installed on the positioning fixture 5 swings at the same time. In this way, the different processing angle requirements of the workpiece are effectively met during the processing, thereby effectively realizing the tool clamping and processing of the workpiece in one operation.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CNC positioning device for terminal processing, characterized in that: The fixture includes a positioning fixture (5); the positioning fixture (5) includes two symmetrically arranged movable fixtures (50) and a fixed fixture (51); both the movable fixture (50) and the fixed fixture (51) have two semi-circular holes (56); wherein; the circular hole in the center of the movable fixture (50) is provided with an internal thread (500); the movable fixture (50) has a guide post (501) integrally provided on the side wall near the fixed fixture (51); the bottom of the fixed fixture (51) is fixedly installed on the support base (7); the circular hole in the center of the fixed fixture (51) is fitted with a bolt (53). The movable fixture (50) and the fixed fixture (51) are provided with limiting platforms (52) in the semi-circular holes (56); multiple limiting platforms (52) are on the same plane; a caliper (54) is fixedly installed on the side wall of the fixed fixture (51); a pointer (55) is provided on the side wall of the movable fixture (50); the caliper (54) and the pointer (55) are on the same side.

2. The CNC positioning device for terminal processing according to claim 1, characterized in that: The bottom of the support base (7) is fixedly installed inside the mounting base (6); the mounting base (6) is fixedly installed with the rotary cylinder (8).

3. The CNC positioning device for terminal processing according to claim 2, characterized in that: The rotary cylinder (8) is fixedly installed on the top of the inner side of the second housing (2); both ends of the second housing (2) are movably installed with the first housing (1) and the L-shaped mounting plate (3) through a rotating shaft.

4. The CNC positioning device for terminal processing according to claim 3, characterized in that: The first housing (1) is equipped with a drive device; the bottom of the first housing (1) is fixedly mounted on an L-shaped mounting plate (3); a negative pressure pipe (4) is installed on the side of the L-shaped mounting plate (3) away from the second housing (2); the negative pressure pipe (4) passes through the L-shaped mounting plate (3) and the side wall of the second housing (2) and is connected to a rotary cylinder (8); the bottom of the L-shaped mounting plate (3) is fixedly mounted on a workbench.

5. A CNC positioning device for terminal processing according to claim 4, characterized in that: The surface of the bolt (53) is connected to the internal thread (500) provided inside the movable tooling (50); one end of the bolt (53) is connected to the internal hex wrench (9).

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