Straight spring clamp tool

Abstract

The utility model relates to the technical field of straight spring clamp tools, in particular to a straight spring clamp tool which comprises a fixing seat, a barrel is rotatably connected to the middle of the fixing seat, a threaded column is rotatably connected to the end, away from the fixing seat, of the barrel, and a fixing ring is fixedly connected to the side, close to the fixing seat, of the side wall of the barrel. The side wall of the threaded column is in threaded connection with a movable ring, the side wall of the fixed ring is rotationally connected with multiple sets of first connecting arms, the side wall of the movable ring is rotationally connected with multiple sets of second connecting arms, the multiple sets of first connecting arms are rotationally connected with the multiple sets of second connecting arms in a staggered mode, and the ends of the first connecting arms and the ends of the second connecting arms are jointly rotationally connected with opening and closing plates used for sleeving straight springs; by rotating the threaded column, controlling the moving ring to move, enabling the multiple sets of opening and closing plates to be opened and closed, sleeving the multiple sets of opening and closing plates with the straight spring and controlling the multiple sets of opening and closing plates to be opened, expanding type clamping can be conducted from the interior of the straight spring, clamping of the exterior of the straight spring is not needed, deformation of the straight spring due to uneven pressure is prevented, and the machining precision of the straight spring is improved.

Description

Technical Field

[0001] The utility model relates to the field of straight spring clamp tooling, in particular to a straight spring clamp tooling. Background Art

[0002] A straight spring is a linear spring, usually made of steel. Also known as a compression spring, it is a mechanical elastic element that is compressed in the axial direction. It has linear elastic properties and will be compressed in the axial direction when subjected to force. During the processing of straight springs, a fixture is required to fix the springs for easy processing.

[0003] Existing straight spring clamp tooling, such as a spring processing clamping device proposed in patent application number "CN202022090319.1", has the advantages of simple structure and easy use through structures such as the clamping part, cover plate, movable shaft, and movable block, which makes it convenient to place and remove the spring.

[0004] However, the device for clamping the straight spring in the prior art clamps both sides of the outer portion of the straight spring. When the clamping force is large, the outer portion of the straight spring will be compressed and deformed inward, and the processing accuracy of the straight spring will be affected. Therefore, a straight spring clamp tooling is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a straight spring clamp fixture to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A straight spring clamp tooling comprises a fixed seat, a cylinder body is rotatably connected to the middle part of the fixed seat, a threaded column is rotatably connected to one end of the cylinder body away from the fixed seat, a fixed ring is fixedly connected to the side wall of the cylinder body close to the fixed seat, a movable ring is threadedly connected to the side wall of the threaded column, the side wall of the fixed ring is rotatably connected to multiple groups of connecting arms one, the side wall of the movable ring is rotatably connected to multiple groups of connecting arms two, the multiple groups of connecting arms one are respectively rotatably connected to the multiple groups of connecting arms two in an interlaced manner, and the ends of the connecting arm one and the connecting arm two are rotatably connected to an opening and closing plate for the straight spring sleeve.

[0008] Preferably, the side wall of the fixed ring is fixedly connected to multiple groups of shaft seats 1, the multiple groups of shaft seats 1 are arranged in a circular array, and one end of multiple groups of connecting arms 1 are respectively rotatably connected to the multiple groups of shaft seats 1; the side wall of the movable ring is fixedly connected to multiple groups of shaft seats 2, the multiple groups of shaft seats 2 are arranged in a circular array, and one end of multiple groups of connecting arms 2 are respectively rotatably connected to the multiple groups of shaft seats 2.

[0009] Preferably, multiple groups of shaft seats 1 correspond to multiple groups of shaft seats 2 respectively, and the middle parts of the corresponding connecting arms 1 and 2 are rotatably connected via a rotating column. The cross-sectional shape of the opening and closing plate is set to an arc shape. The opening and closing plate is fixedly connected to a connecting plate on one side close to the cylinder, and one end of the connecting arm 1 and the connecting arm 2 is rotatably connected to the opening and closing plate via the connecting plate.

[0010] Preferably, one end of the opening and closing plate away from the side wall of the cylinder is fixedly connected to a limit plate for abutting against one end of the straight spring, and the other end is fixedly connected to a stopper for preventing the straight spring from falling off.

[0011] Preferably, a knob is fixedly connected to one end of the threaded column away from the fixing seat, and a gear is fixedly connected to one end of the cylinder away from the threaded column, and the gear is located on a side of the fixing seat away from the threaded block.

[0012] Preferably, one end of the threaded column located in the cylinder is fixedly connected to a rotating block, and a rotating groove is opened on the inner wall of the cylinder, and the rotating block is rotatably connected in the rotating groove.

[0013] Beneficial effects of the utility model:

[0014] The utility model controls the movement of the movable ring by rotating the threaded column to open and close the multiple groups of opening and closing plates. The straight springs are sleeved on the outside of the multiple groups of opening and closing plates to control the opening of the multiple groups of opening and closing plates. The straight springs can be expanded and clamped from the inside, so that the straight springs are evenly stressed inside and there is no need to clamp the outside of the straight springs, thereby preventing the straight springs from being unevenly compressed and deformed, and improving the processing accuracy of the straight springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 This is a schematic diagram of the installation structure of the straight spring of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cylinder structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the opening and closing plate of the utility model;

[0020] The reference numerals in the figures are as follows:

[0021] 1. Fixed seat; 3. Cylinder; 4. Threaded column; 5. Rotating groove; 6. Rotating block; 7. Knob; 8. Fixed ring; 81. Shaft seat 1; 9. Moving ring; 91. Shaft seat 2; 10. Connecting arm 1; 11. Connecting arm 2; 12. Connecting plate; 13. Opening and closing plate; 14. Limiting plate; 15. Block; 16. Rotating column; 17. Gear. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] A straight spring fixture, such as Figure 1-Figure 4 As shown, it includes a fixed seat 1, which is convenient for the installation and fixation of the fixture. The middle part of the fixed seat 1 is rotatably connected to a cylinder 3, the middle part of the cylinder 3 is hollow, and the end of the cylinder 3 away from the fixed seat 1 is rotatably connected to a threaded column 4, and the threaded column 4 and the cylinder 3 are not threadedly connected. A fixed ring 8 is fixed to the side of the cylinder 3 close to the fixed seat 1, and a movable ring 9 is threadedly connected to the side wall of the threaded column 4. The movable ring 9 can move back and forth on the side wall of the threaded column 4. The side wall of the fixed ring 8 is rotatably connected to multiple groups of connecting arms 10, and the side wall of the movable ring 9 is rotatably connected to multiple groups of connecting arms 2 11. The multiple groups of connecting arms 10 are respectively rotatably connected to the multiple groups of connecting arms 2 11 in an alternating manner, and the ends of the connecting arm 10 and the connecting arm 2 11 are rotatably connected to an opening and closing plate 13 for straight spring sleeves.

[0024] When in use, rotate the threaded column 4. Due to the staggered rotation connection between the connecting arm 10 and the connecting arm 2 11, the movable ring 9 can be controlled to move. When the movable ring 9 is away from the fixed ring 8, the multiple groups of connecting arms 10 and the multiple groups of connecting arms 2 11 rotate in an staggered manner, so that the multiple groups of opening and closing plates 13 are closed, and the diameter formed between the multiple groups of opening and closing plates 13 is smaller than the diameter of the straight spring. The straight spring is sleeved on the outside of the multiple groups of opening and closing plates 13, and the threaded column 4 is rotated in the opposite direction. The movable ring 9 is away from the fixed ring 8, and the multiple groups of opening and closing plates 13 are controlled to open. The straight spring can be expansionally clamped from the inside, and the force on the inside of the straight spring is uniform. There is no need to clamp the outside of the straight spring, which prevents the straight spring from being unevenly compressed and deformed, thereby improving the processing accuracy of the straight spring.

[0025] The side wall of the fixed ring 8 is fixedly connected to multiple groups of shaft seats 81, which are arranged in a circular array, and one end of multiple groups of connecting arms 10 are respectively rotatably connected to the multiple groups of shaft seats 81. The side wall of the movable ring 9 is fixedly connected to multiple groups of shaft seats 91, which are arranged in a circular array, and one end of multiple groups of connecting arms 2 11 are respectively rotatably connected to the multiple groups of shaft seats 91.

[0026] like Figure 1-Figure 4 As shown, when the movable ring 9 moves, the movable ring 9 and the fixed ring 8 move closer to or farther away from each other, so that the angle between the connecting arm 10 and the connecting arm 2 11 changes, thereby driving the opening and closing plate 13 to expand or close.

[0027] The multiple groups of shaft seats 81 correspond to the multiple groups of shaft seats 2 91 respectively, and the corresponding connecting arms 10 and connecting arms 2 11 are rotatably connected in the middle via a rotating column 16. The cross-sectional shape of the opening and closing plate 13 is set to an arc shape. The opening and closing plate 13 is fixedly connected to a connecting plate 12 on one side close to the cylinder 3. One end of the connecting arm 10 and the connecting arm 2 11 is rotatably connected to the opening and closing plate 13 via the connecting plate 12.

[0028] like Figure 1-Figure 4 As shown, an elliptical connecting hole is opened on the connecting plate 12, and the connecting arm 10 and the connecting arm 2 11 are rotatably connected with the elliptical connecting hole, so that one end of the connecting arm 10 and the connecting arm 2 11 has space to move on the connecting plate 12, preventing the connecting arm 10 and the connecting arm 2 11 from being stuck during rotation. Multiple sets of opening and closing plates 13 form a cylinder, which can clamp straight springs within a certain range and has a wide range of applications.

[0029] The opening and closing plate 13 has one end away from the side wall of the cylinder 3 fixedly connected to a limit plate 14 for abutting against one end of the straight spring, and the other end fixedly connected to a stopper 15 for preventing the straight spring from falling off.

[0030] like Figure 1 As shown, when the opening and closing plate 13 is closed, the limiting plate 14 and the stopper 15 will not affect the installation of the straight spring. When the opening and closing plate 13 is opened, the limiting plate 14 and the stopper 15 limit the straight spring to prevent the straight spring from escaping from the clamp.

[0031] The end of the threaded column 4 away from the fixing base 1 is fixedly connected to the knob 7, and the end of the cylinder 3 away from the threaded column 4 is fixedly connected to the gear 17. The gear 17 is located on the side of the fixing base 1 away from the threaded block.

[0032] like Figure 1 As shown, the knob 7 is convenient for rotating the threaded column 4, and the external driving device can drive the straight spring clamp tooling to rotate through the gear 17, so that the straight spring can be turned over for processing.

[0033] One end of the threaded column 4 located in the cylinder 3 is fixedly connected to a rotating block 6 . A rotating groove 5 is opened on the inner wall of the cylinder 3 , and the rotating block 6 is rotatably connected in the rotating groove 5 .

[0034] like Figure 2 As shown, the rotating block 6 and the rotating groove 5 facilitate the rotation of the threaded column 4 and prevent the threaded column 4 from separating from the barrel 3.

[0035] The working principle of the straight spring clamp provided by the utility model is as follows:

[0036] By turning the knob 7, the threaded column 4 rotates. Due to the staggered rotation connection between the connecting arm 10 and the connecting arm 2 11, the movable ring 9 is controlled to move, so that the multiple groups of opening and closing plates 13 are closed or expanded. The straight spring is set on the outside of the multiple groups of opening and closing plates 13, and the straight spring can be expanded and clamped from the inside. The straight spring is evenly stressed inside and there is no need to clamp the outside of the straight spring, which prevents the straight spring from being unevenly compressed and deformed, thereby improving the processing accuracy of the straight spring.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A straight spring clamp fixture, comprising a fixing seat (1), characterized in that: The middle part of the fixed seat (1) is rotatably connected to a cylinder (3), an end of the cylinder (3) away from the fixed seat (1) is rotatably connected to a threaded column (4), a side wall of the cylinder (3) close to the fixed seat (1) is fixedly connected to a fixed ring (8), a side wall of the threaded column (4) is threadedly connected to a movable ring (9), the side wall of the fixed ring (8) is rotatably connected to multiple groups of connecting arms (10), the side wall of the movable ring (9) is rotatably connected to multiple groups of connecting arms (11), the multiple groups of connecting arms (10) are respectively rotatably connected to the multiple groups of connecting arms (11) in an interlaced manner, and the ends of the connecting arms (10) and the connecting arms (11) are rotatably connected to an opening and closing plate (13) for the straight spring sleeve.

2. A straight spring clamp fixture according to claim 1, characterized in that: The side wall of the fixed ring (8) is fixedly connected to multiple groups of shaft seats (81), and the multiple groups of shaft seats (81) are arranged in a circular array. One end of multiple groups of connecting arms (10) are respectively rotatably connected to the multiple groups of shaft seats (81). The side wall of the movable ring (9) is fixedly connected to multiple groups of shaft seats (91), and the multiple groups of shaft seats (91) are arranged in a circular array. One end of multiple groups of connecting arms (11) are respectively rotatably connected to the multiple groups of shaft seats (91).

3. A straight spring clamp fixture according to claim 2, characterized in that: The plurality of groups of shaft seats (81) correspond to the plurality of groups of shaft seats (91) respectively, and the middle parts of the corresponding connecting arms (10) and connecting arms (11) are rotatably connected via a rotating column (16). The cross-sectional shape of the opening and closing plate (13) is set to be an arc. A connecting plate (12) is fixedly connected to a side of the opening and closing plate (13) close to the cylinder (3), and one end of the connecting arm (10) and the connecting arm (11) are rotatably connected to the opening and closing plate (13) via the connecting plate (12).

4. The straight spring clamp fixture according to claim 1, characterized in that: One end of the opening and closing plate (13) away from the side wall of the cylinder (3) is fixedly connected to a limiting plate (14) for abutting against one end of the straight spring, and the other end is fixedly connected to a stopper (15) for preventing the straight spring from falling off.

5. The straight spring clamp fixture according to claim 1, characterized in that: The end of the threaded column (4) away from the fixing seat (1) is fixedly connected to a knob (7), and the end of the cylinder (3) away from the threaded column (4) is fixedly connected to a gear (17), and the gear (17) is located on the side of the fixing seat (1) away from the threaded block.

6. The straight spring clamp fixture according to claim 1, characterized in that: One end of the threaded column (4) located in the cylinder (3) is fixedly connected to a rotating block (6); a rotating groove (5) is provided on the inner wall of the cylinder (3); and the rotating block (6) is rotatably connected to the rotating groove (5).

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