Machining fixing clamp

Abstract

The invention discloses a machining fixing clamp which comprises a base and a positioning assembly, and the positioning assembly is installed on the base. The multiple sets of positioning assemblies are arranged on the two sides of the base and used for clamping the two ends of a steel pipe. The positioning assembly comprises a positioning seat, a driving mechanism and a clamping mechanism, and the driving mechanism and the clamping mechanism are both arranged in the positioning seat; the driving mechanism is in transmission connection with the clamping mechanism, and the driving mechanism is used for driving the clamping mechanism to open so as to position inner holes of steel pipes with various diameters; the device further comprises an auxiliary positioning assembly which is used for conducting auxiliary positioning on the middle position of the steel pipe. By arranging the positioning assembly composed of the driving mechanism and the clamping mechanism, the driving mechanism can drive the clamping mechanism to open so as to position inner holes of steel pipes with various diameters, so that the machining cost is effectively reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, and in particular to a mechanical processing fixing clamp. Background Art

[0002] The machining process refers to the process of directly changing the shape, size, relative position and properties of the blank by machining to make it a qualified part.

[0003] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a clamp. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture.

[0004] When clamping and fixing steel pipes, the mechanical processing fixtures on the market can usually only clamp steel pipes of a single diameter. When clamping steel pipes of multiple diameters, multiple sets of fixtures are needed, which increases the processing cost and reduces work efficiency. Summary of the invention

[0005] The problem to be solved by the present invention is to provide a mechanical processing fixing fixture, by setting a positioning assembly composed of a driving mechanism and a clamping mechanism, the driving mechanism can drive the clamping mechanism to open to position the inner holes of steel pipes of various diameters, thereby effectively reducing processing costs and improving work efficiency.

[0006] The technical solution provided by the present invention to solve the above problems is: a mechanical processing fixing fixture, comprising a base and a positioning assembly, the positioning assembly is installed on the base; the positioning assembly has multiple groups and is arranged on both sides of the base for clamping the two ends of the steel pipe; the positioning assembly comprises a positioning seat, a driving mechanism and a clamping mechanism, the driving mechanism and the clamping mechanism are both arranged in the positioning seat;

[0007] The driving mechanism is in transmission connection with the clamping mechanism, and the driving mechanism is used to drive the clamping mechanism to open so as to position the inner holes of steel pipes of various diameters;

[0008] It also includes an auxiliary positioning component, which is used to assist in positioning the middle position of the steel pipe.

[0009] Preferably, the clamping mechanism includes a mounting column, a transmission mechanism and a plurality of top plates, a positioning hole is provided on the positioning seat, one end of the mounting column is connected to the bottom of the positioning hole, the transmission mechanism is provided on the mounting column, the top plate is connected to the transmission mechanism, and the transmission mechanism can drive the top plate to expand or retract to position the inner holes of steel pipes of various diameters.

[0010] Preferably, the transmission mechanism includes a movable ring, a fixed ring 1, a fixed ring 2 and a plurality of connecting rods, the movable ring 1 is movably mounted on the mounting column, the fixed ring 1 and the fixed ring 2 are respectively arranged on both sides of the mounting column, and the movable ring, the fixed ring 1 and the fixed ring 2 are all movably connected to the top plate through the connecting rods.

[0011] Preferably, the clamping mechanism further comprises a positioning sleeve, one end of which is connected to the bottom of the positioning hole, the mounting column is located in the positioning sleeve, and the positioning sleeve is provided with a movable groove for allowing the top plate to move.

[0012] Preferably, a limiting ring for axially limiting the steel pipe is also provided on the outer circumferential surface of the positioning sleeve.

[0013] Preferably, the driving mechanism includes a driving member, a driving ring and a transmission rod, the mounting column is provided with an installation cavity for installing the driving ring, a plurality of driving rods are provided on the circumferential surface of the driving ring, the cavity wall of the mounting cavity is provided with a through groove for the driving rod to move, the driving rod is transmission-connected to the movable ring, the transmission rod is threadedly connected to the driving ring, and one end of the transmission rod is transmission-connected to the driving member.

[0014] Preferably, the driving member is a motor.

[0015] Preferably, the driving mechanism further comprises a follower ring and a spring, wherein the follower ring and the spring are both sleeved on the mounting column, the follower ring is connected to the driving rod, one end of the spring abuts against the follower ring, and the other end abuts against the movable ring.

[0016] Preferably, the auxiliary positioning assembly includes a plurality of positioning rods, the plurality of positioning rods are arranged at intervals on the base, and the positioning rods are provided with a plurality of positioning grooves cooperating with the steel pipes.

[0017] Preferably, it further comprises a movable seat, the positioning assembly is arranged on the movable seat, and the movable seat can drive the positioning assembly to perform longitudinal displacement and lateral displacement.

[0018] Compared with the prior art, the advantages of the present invention are: by setting a positioning assembly consisting of a driving mechanism and a clamping mechanism, the driving mechanism can drive the clamping mechanism to open to position the inner holes of steel pipes of various diameters, thereby effectively reducing processing costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a cross-sectional view of a positioning assembly of the present invention;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 yes Figure 3 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 is a cross-sectional view of the mounting column;

[0025] Figure 6 It is a cross-sectional view of the clamping mechanism in the positioning assembly of the present invention after being expanded.

[0026] The attached drawings are marked with: 1. base, 2. steel pipe, 3. movable seat, 4. positioning seat, 5. positioning rod, 6. motor, 7. positioning sleeve, 8. limiting ring, 9. positioning hole, 10. movable groove, 11. top plate, 12. fixed ring 2, 13. connecting rod, 14. mounting column, 15. fixed ring 1, 16. movable ring, 17. spring, 18. follower ring, 19. mounting cavity, 20. transmission rod, 21. through groove, 22. driving rod, 23. driving ring. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0033] The specific embodiment of the present invention is shown in the accompanying drawings, a mechanical processing fixture, comprising a base 1 and a positioning assembly, the positioning assembly is installed on the base 1; the positioning assembly has multiple groups and is arranged on both sides of the base 1 for clamping the two ends of the steel pipe 2; the positioning assembly comprises a positioning seat 4, a driving mechanism and a clamping mechanism, the driving mechanism and the clamping mechanism are both arranged in the positioning seat 4;

[0034] The driving mechanism is in transmission connection with the clamping mechanism, and the driving mechanism is used to drive the clamping mechanism to open so as to position the inner holes of the steel pipes 2 of various diameters;

[0035] It also includes an auxiliary positioning component, which is used to assist in positioning the middle position of the steel pipe 2.

[0036] In the above scheme, by providing a positioning assembly consisting of a driving mechanism and a clamping mechanism, the driving mechanism can drive the clamping mechanism to expand so as to position the inner holes of steel pipes of various diameters, thereby effectively reducing processing costs and improving work efficiency.

[0037] As another embodiment of the present invention, the clamping mechanism includes a mounting column 14, a transmission mechanism and a plurality of top plates 11. A positioning hole 9 is provided on the positioning seat 4. One end of the mounting column 14 is connected to the bottom of the positioning hole 9. The transmission mechanism is provided on the mounting column 14. The top plate 11 is connected to the transmission mechanism. The transmission mechanism can drive the top plate 11 to expand or retract to position the inner holes of steel pipes 2 of various diameters.

[0038] Specifically, the transmission mechanism includes a movable ring 16, a fixed ring 15, a fixed ring 2 12 and a plurality of connecting rods 13. The movable ring 16 is movably mounted on the mounting column 14. The fixed ring 15 and the fixed ring 2 12 are respectively arranged on both sides of the mounting column 14. The movable ring 16, the fixed ring 15 and the fixed ring 2 12 are all movably connected to the top plate 11 through the connecting rods 13.

[0039] In this embodiment, further, the clamping mechanism also includes a positioning sleeve 7, one end of which is connected to the bottom of the positioning hole 9, the mounting column 14 is located in the positioning sleeve 7, and the positioning sleeve 7 is provided with a movable groove 10 for the top plate 11 to move.

[0040] In order to facilitate the positioning of the steel pipe when placing it, a limiting ring 8 for axially limiting the steel pipe 2 is also provided on the outer circumferential surface of the positioning sleeve 7 .

[0041] In this embodiment, further, the driving mechanism includes a driving member, a driving ring 23 and a transmission rod 20, the mounting column 14 is provided with a mounting cavity 19 for mounting the driving ring 23, a plurality of driving rods 22 are provided on the circumferential surface of the driving ring 23, a through groove 21 for the driving rod 22 to move is provided on the cavity wall of the mounting cavity 19, the driving rod 22 is transmission-connected with the movable ring 16, the transmission rod 20 is threadedly connected with the driving ring 23, and one end of the transmission rod 20 is transmission-connected with the driving member. The driving member is a motor 6.

[0042] In this embodiment, the driving mechanism also includes a follower ring 18 and a spring 17, both of which are mounted on the mounting column 14, the follower ring 18 is connected to the driving rod 22, one end of the spring 17 abuts against the follower ring 18, and the other end abuts against the movable ring 16.

[0043] As another embodiment of the present invention, the auxiliary positioning assembly includes a plurality of positioning rods 5 , and the plurality of positioning rods 5 are arranged on the base 1 at intervals, and the positioning rods 5 are provided with a plurality of positioning grooves matching with the steel pipes 2 .

[0044] As another embodiment of the present invention, it further comprises a movable seat 3, the positioning assembly is arranged on the movable seat 3, and the movable seat 3 can drive the positioning assembly to perform longitudinal displacement and lateral displacement. It should be noted that the specific structure of the movable seat in this embodiment belongs to the prior art, and it only needs to be able to realize the function of driving the positioning assembly to perform longitudinal displacement and lateral displacement, so it will not be described in detail in this application.

[0045] In this scheme, the specific positioning process of the positioning assembly for the steel pipe is as follows: first, place the steel pipe on the auxiliary positioning assembly on the base, then move the movable bases on both sides so that the two ends of the steel pipe are inserted into the positioning holes on the positioning seat, fix the movable seat, and then turn on the motor. The rotation of the motor drives the transmission rod to rotate. The rotation of the transmission rod drives the driving ring and the follower ring to move in the direction of spring compression, thereby driving the movable ring to move to the right. During the movement of the movable ring to the right, the top plate is pushed outward to contact the inner wall of the steel pipe (such as Figure 6 As shown), the steel pipe is positioned; in the above scheme, when the steel pipe is positioned, the displacement distance of the drive ring is the same. By setting the spring, the compression amount of the spring is smaller when positioning some steel pipes with larger diameters, and the compression amount of the spring is larger when positioning some steel pipes with smaller diameters. In this way, the positioning component of the present scheme can be applied to steel pipes of various diameters, reducing the processing cost.

[0046] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A mechanical processing fixture, comprising a base (1) and a positioning assembly, wherein the positioning assembly is mounted on the base (1); characterized in that: The positioning components have multiple groups and are arranged on both sides of the base (1) for clamping the two ends of the steel pipe (2); the positioning components include a positioning seat (4), a driving mechanism and a clamping mechanism, and the driving mechanism and the clamping mechanism are both arranged in the positioning seat (4); The driving mechanism is in driving connection with the clamping mechanism, and the driving mechanism is used to drive the clamping mechanism to expand so as to position the inner holes of steel pipes (2) of various diameters; It also comprises an auxiliary positioning component, which is used to assist in positioning the middle position of the steel pipe (2).

2. A mechanical processing fixture according to claim 1, characterized in that: The clamping mechanism comprises a mounting column (14), a transmission mechanism and a plurality of top plates (11); a positioning hole (9) is provided on the positioning seat (4); one end of the mounting column (14) is connected to the bottom of the positioning hole (9); the transmission mechanism is arranged on the mounting column (14); the top plate (11) is connected to the transmission mechanism in a transmission manner; the transmission mechanism can drive the top plate (11) to expand or retract so as to position the inner holes of steel pipes (2) of various diameters.

3. A mechanical processing fixture according to claim 2, characterized in that: The transmission mechanism comprises a movable ring (16), a fixed ring 1 (15), a fixed ring 2 (12) and a plurality of connecting rods (13); the movable ring (16) is movably mounted on the mounting column (14); the fixed ring 1 (15) and the fixed ring 2 (12) are respectively arranged on both sides of the mounting column (14); and the movable ring (16), the fixed ring 1 (15) and the fixed ring 2 (12) are all movably connected to the top plate (11) through the connecting rods (13).

4. A mechanical processing fixture according to claim 3, characterized in that: The clamping mechanism also includes a positioning sleeve (7), one end of which is connected to the bottom of the positioning hole (9), the mounting column (14) is located in the positioning sleeve (7), and the positioning sleeve (7) is provided with a movable groove (10) for allowing the top plate (11) to move.

5. A mechanical processing fixture according to claim 4, characterized in that: A limiting ring (8) for axially limiting the steel pipe (2) is also provided on the outer circumferential surface of the positioning sleeve (7).

6. A mechanical processing fixture according to claim 3, characterized in that: The driving mechanism comprises a driving member, a driving ring (23) and a transmission rod (20); the mounting column (14) is provided with a mounting cavity (19) for mounting the driving ring (23); a plurality of driving rods (22) are provided on the circumferential surface of the driving ring (23); a through groove (21) for the driving rod (22) to move is provided on the cavity wall of the mounting cavity (19); the driving rod (22) is drivingly connected to the movable ring (16); the transmission rod (20) is threadedly connected to the driving ring (23); and one end of the transmission rod (20) is drivingly connected to the driving member.

7. A mechanical processing fixture according to claim 6, characterized in that: The driving member is a motor (6).

8. The mechanical processing fixture according to claim 6, characterized in that: The driving mechanism further comprises a follower ring (18) and a spring (17), wherein the follower ring (18) and the spring (17) are both sleeved on the mounting column (14), the follower ring (18) is connected to the driving rod (22), and one end of the spring (17) is in contact with the follower ring (18), and the other end is in contact with the movable ring (16).

9. The mechanical processing fixture according to claim 1, characterized in that: The auxiliary positioning assembly comprises a plurality of positioning rods (5), wherein the plurality of positioning rods (5) are arranged at intervals on the base (1), and the positioning rods (5) are provided with a plurality of positioning grooves matching the steel pipes (2).

10. The mechanical processing fixture according to claim 1, characterized in that: It also comprises a movable seat (3), the positioning assembly is arranged on the movable seat (3), and the movable seat (3) can drive the positioning assembly to perform longitudinal displacement and lateral displacement.

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