CN218903435U

CN218903435U - Tension spring clamp

Info

Publication number: CN218903435U
Application number: CN202223288993.6U
Authority: CN
Inventors: 李世超
Original assignee: Hubei Keli Auto Parts Co ltd
Current assignee: Hubei Keli Auto Parts Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-25
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the technical field of spring tension detection and discloses an extension spring clamp, wherein two groups of arm force connecting rods are symmetrically connected to the telescopic end of a push-pull cylinder, the push-pull cylinder is respectively connected with two groups of guide sliding seats through the two groups of arm force connecting rods, a lock catch cylinder sleeve is screwed and fixed with a lock catch inserting column through a locking nut, a counter pull rod is arranged at the bottom end of an arm rod of the lock catch inserting column, and a traction hook is arranged at the bottom end of the arm rod of the counter pull rod. According to the utility model, the driving mechanism is used as a power source, and the symmetrical push-pull of the driving mechanism to the two groups of clamping jaw mechanisms is utilized, so that on one hand, the tension springs can be hung under the condition of no tension, the tension springs with different sizes can be adapted while the tension force detection accuracy is improved, and on the other hand, under the condition of assembling and combining the clamping jaw mechanisms capable of being flexibly disassembled and assembled, the clamping jaw mechanism not only can carry out tension force detection on springs in the form of tension springs, but also can replace corresponding clamping heads and carry out tension force detection on springs in other forms.

Description

Tension spring clamp

Technical Field

The utility model relates to the technical field of spring tension detection, in particular to an extension spring clamp.

Background

The spring is a mechanical part working by utilizing elasticity, is generally made of spring steel, is complex and various in types, and mainly comprises a spiral spring, a scroll spring, a plate spring, a special-shaped spring, a tension spring and the like according to the shape, wherein the tension spring is used as one of the types of springs and is suitable for working environments such as high and low temperature, corrosion resistance and the like, and the materials mainly comprise a stainless steel spring wire, a carbon steel wire, an oil quenching tempering alloy spring wire, a high and low temperature alloy spring wire and the like, and after the production is finished, the tension performance of the spring is often detected by using clamp equipment so as to ensure the qualification of the tension force of the spring, for example, the prior patent technology shows that:

through searching, the Chinese patent net discloses a tension spring tensile test fixture (publication No. CN 202869890U), and the device can be suitable for bolts with different sizes by arranging bolt holes with different apertures on an upper tool and a lower tool, so that the bolt size of the tension spring tensile test fixture can be suitable for tension spring samples with different sizes. However, there are some disadvantages to the tension spring tensile test fixtures adopted in the above-mentioned published patent and the existing market: the manual bolt position adjustment is adopted to adapt to the forms of tension springs with different sizes, so that the operation intensity is high, the inserting position of the bolt is required to be corrected continuously, the bolt can be connected with the tension springs in a hanging mode, and operation errors are prone to exist when the adjustment and correction are carried out, so that the tension test correction of the tension springs is inaccurate. Accordingly, one skilled in the art would provide an extension spring clip that addresses the problems set forth in the background above.

Disclosure of Invention

The present utility model is directed to an extension spring clamp for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a tension spring clamp comprises a driving mechanism and a clamping jaw mechanism;

the driving mechanism comprises a guide rail frame, an arm strength bracket is arranged above a track of the guide rail frame, a push-pull cylinder is arranged in the middle of a stand of the arm strength bracket, two groups of guide sliding seats are symmetrically penetrated and clamped relative to the central axis of the track of the guide rail frame, two groups of arm strength connecting rods are symmetrically connected to telescopic ends of the push-pull cylinder, and the push-pull cylinder is respectively connected with the two groups of guide sliding seats through the two groups of arm strength connecting rods;

the clamping jaw mechanism comprises a lock catch cylinder sleeve arranged on one side of a guide slide seat body, a lock catch inserting column is inserted at the bottom of a sleeve of the lock catch cylinder sleeve, the lock catch cylinder sleeve and the lock catch inserting column are screwed down through a locking nut, a counter pull rod is arranged at the bottom end of an arm rod of the lock catch inserting column, and a traction hook is arranged at the bottom end of the arm rod of the counter pull rod.

As still further aspects of the utility model: two groups of guide rail sliding grooves are symmetrically formed in the front side and the rear side of a track of the guide rail frame, and two groups of guide sliding buckles matched with the guide rail sliding grooves are symmetrically arranged in the front side and the rear side of a seat body of the guide sliding seat.

As still further aspects of the utility model: two groups of scale marks are symmetrically marked on the front side and the rear side of the track of the guide rail frame, which are opposite to the lower sides of the notch of the guide rail chute, and two groups of scale pointers corresponding to the two groups of scale marks are respectively arranged at the bottoms of the guide slide buckles.

As still further aspects of the utility model: the inner cavity of the locking cylinder sleeve and the locking inserting column are of hexagonal structures.

As still further aspects of the utility model: and a locking screw hole matched with the locking nut is formed in the top of the lock catch inserted column.

As still further aspects of the utility model: the telescopic end of the push-pull cylinder is provided with a push-pull support connected with two groups of arm force connecting rods.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the driving mechanism is used as a power source, and is utilized for symmetrically pushing and pulling the two groups of clamping jaw mechanisms, so that on one hand, the initial distance between the two groups of clamping jaw mechanisms can be mechanically pre-adjusted according to the size of the tension spring, the tension spring is hung in a non-stretching state, the tension force detection accuracy is improved, meanwhile, the device has high-efficiency and accurate mechanical regulation performance, so that the device is suitable for tension springs with different sizes, on the other hand, the driving mechanism is utilized for pushing and pulling the two groups of clamping jaw mechanisms symmetrically, and under the assembly combination of the clamping jaw mechanisms capable of being flexibly assembled and disassembled, the device not only can carry out tension force detection work on the springs in the form of the tension spring, but also can replace corresponding clamping heads and carry out tension force detection work on the springs in other forms.

Drawings

FIG. 1 is a schematic view of a construction of an extension spring clamp;

FIG. 2 is an enlarged schematic view of the tension spring clamp of FIG. 1 at A;

fig. 3 is a schematic view of the structure of a jaw mechanism in an extension spring clamp.

In the figure: 1. a guide rail frame; 2. arm strength support; 3. a push-pull cylinder; 4. push-pull support; 5. arm force connecting rod; 6. a guide slide; 7. a pair of tie rods; 8. traction hook; 9. a guide rail chute; 10. a graduated scale; 11. a guide slide fastener; 12. a scale pointer; 13. a lock catch cylinder sleeve; 14. a locking nut; 15. locking the screw hole; 16. the latch posts.

Detailed Description

Referring to fig. 1-3, in the embodiment of the utility model, an extension spring clamp comprises a driving mechanism and a clamping jaw mechanism, wherein the driving mechanism comprises a guide rail frame 1, an arm support 2 is arranged above a track of the guide rail frame 1, a push-pull cylinder 3 is arranged in the middle of a stand of the arm support 2, two groups of guide sliding seats 6 are symmetrically penetrated and clamped in the track of the guide rail frame 1 relative to the central axis of the guide rail frame, two groups of guide rail sliding grooves 9 are symmetrically arranged on the front side and the rear side of the track of the guide rail frame 1, two groups of guide sliding buckles 11 matched with the guide rail sliding grooves 9 are symmetrically arranged on the front side and the rear side of a seat body of the guide sliding seats 6, two groups of scale scales 10 are symmetrically marked below notches of the guide rail sliding grooves 9 opposite to the front side and the rear side of the track of the guide rail frame 1, the bottoms of the two groups of guide slide buckles 11 are respectively provided with two groups of scale pointers 12 corresponding to the two groups of scale scales 10, when the tensile force qualification of the tension spring is detected by using the clamp, when the driving mechanism pushes the guide slide seat 6 in the clamping jaw mechanism to symmetrically slide in the guide rail frame 1, the guide slide seat 11 and the guide block of the guide rail slide groove 9 are used for improving the stability of symmetrical displacement of the guide slide seat 6 in the guide rail frame 1, and the scale pointers 12 can be pushed to synchronously displace on the scale scales 10 to record and display the initial position and the tensile displacement position of the traction hook 8 in real time so that a worker can regulate and control the initial position and the final tensile displacement position of the traction hook 8 according to simplicity and convenience.

The telescopic end of the push-pull cylinder 3 is symmetrically connected with two groups of arm force connecting rods 5, the push-pull cylinder 3 is respectively connected with two groups of guide sliding seats 6 through the two groups of arm force connecting rods 5, the telescopic end of the push-pull cylinder 3 is provided with a push-pull support 4 connected with the two groups of arm force connecting rods 5, when the tension of the tension spring is detected by using a clamp, a worker firstly adjusts the initial positions of the two groups of traction hooks 8 according to the initial length of the tension spring, the tension spring can be hung on the traction hooks 8 in a tension-free mode, then in the adjustment process, the telescopic end of the push-pull cylinder 3 stretches, the push-pull support 4 is pushed to lift and displace, the push-pull support 4 pushes the two groups of arm force connecting rods 5 to symmetrically rotate in the lifting and displacing process, the vertical pushing force is converted into horizontal pushing force, the two groups of guide sliding seats 6 are pushed to symmetrically displace in the horizontal direction in the guide rail frame 1, the initial positions of the two groups of the traction hooks 8 are regulated and controlled, and then after the tension spring to be detected is hung on the two groups of traction hooks 8 by using the mechanical pushing force of the push-pull cylinder 3, the tension spring is pushed to symmetrically displace the tension of the tension spring to be hung on the two groups of the traction hooks, the tension spring to be detected by the worker, the tension spring is pulled to the tension of the tension spring to the tension of the two groups to the tension mechanism to the tension of the tension hook 8 in the specified length, the tension is accurately detected by the tension, and the tension spring is accurately detected by the tension in the detection state, and the tension of the tension mechanism is high, and adjusted and has high performance, and accurate performance that the tension is well when the tension is detected in the tension and adjusted.

The clamping jaw mechanism comprises a lock catch cylinder sleeve 13 arranged on one side of a seat body of a guide sliding seat 6, a lock catch inserting column 16 is inserted at the bottom of a sleeve of the lock catch cylinder sleeve 13, the lock catch cylinder sleeve 13 and the lock catch inserting column 16 are screwed out through a locking nut 14, a counter pull rod 7 is arranged at the bottom end of an arm rod of the lock catch inserting column 16, a traction hook 8 is arranged at the bottom end of the arm rod of the counter pull rod 7, an inner cavity of the lock catch cylinder sleeve 13 and the lock catch inserting column 16 are of a hexagonal structure, a locking screw hole 15 matched with the locking nut 14 is formed in the top of a cylinder of the lock catch inserting column 16, a clamp is utilized to detect tension of a spring, when the springs of other types are needed to be detected, a worker can unscrew the locking nut 14 from the locking screw hole 15 at the top of the lock catch inserting column 16, then draw the lock catch cylinder sleeve 13 from the lock catch cylinder sleeve 13, the traction hook 8 at the bottom of the counter pull rod is replaced, the corresponding clamp is matched with the springs of the corresponding types, the corresponding clamp inserting column 16 is clamped into the lock catch cylinder sleeve 13 again, the tension of the lock catch cylinder sleeve 16 is detected again, and the tension of the lock catch cylinder sleeve is not suitable for being screwed in the type of the spring sleeve 13, and the tension of the clamp is not suitable for detecting tension of the type of the lock catch cylinder sleeve.

The working principle of the utility model is as follows: when the tensile force of the tension spring is detected by using the clamp, a worker firstly adjusts the initial positions of the two groups of traction hooks 8 according to the initial length of the tension spring, so that the tension spring can be hung on the traction hooks 8 in a tension-free mode, then in the adjusting process, the telescopic end of the push-pull cylinder 3 stretches out and draws back, the push-pull support 4 is pushed to lift displacement, the push-pull support 4 pushes the two groups of arm force connecting rods 5 to symmetrically rotate in the lifting displacement process, the vertical thrust is converted into horizontal thrust, the two groups of guide sliding seats 6 are pushed to symmetrically displace in the guide rail frame 1, the initial positions of the two groups of traction hooks 8 are regulated and controlled, then the worker can hang the tension spring to be detected on the two groups of traction hooks 8, after the hanging is finished, the tension spring is stretched to a specified length by using the mechanical thrust of the push-pull cylinder 3, when the other types of springs need to be detected, the worker can unscrew the locking nut 14 from the locking screw hole 15 at the top of the lock sleeve 16, the lock sleeve 13 and the lock catch sleeve 16 are released, the lock sleeve 16 is screwed out from the locking screw hole 16, the lock sleeve 16 is correspondingly matched with the lock sleeve 16, and the corresponding to the lock sleeve 16 is replaced, and the type of the lock sleeve is matched with the lock sleeve 16, and the type of the lock sleeve 16 is simultaneously detected, and the type of the lock sleeve is matched with the lock sleeve 16 is replaced, and the type of the lock sleeve 16 is simultaneously, and the type is matched with the type with the lock sleeve 16, and the type is matched with the type, and the type of the lock sleeve.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The tension spring clamp is characterized by comprising a driving mechanism and a clamping jaw mechanism;

the driving mechanism comprises a guide rail frame (1), an arm strength bracket (2) is arranged above a track of the guide rail frame (1), a push-pull air cylinder (3) is arranged in the middle of a stand of the arm strength bracket (2), two groups of guide sliding seats (6) are symmetrically and fixedly clamped in the track of the guide rail frame (1) relative to the central axis of the guide rail frame, two groups of arm strength connecting rods (5) are symmetrically connected to telescopic ends of the push-pull air cylinder (3), and the push-pull air cylinder (3) is respectively connected with the two groups of guide sliding seats (6) through the two groups of arm strength connecting rods (5);

the clamping jaw mechanism comprises a lock catch cylinder sleeve (13) arranged on one side of a seat body of the guide sliding seat (6), a lock catch inserting column (16) is inserted into the bottom of a sleeve of the lock catch cylinder sleeve (13), the lock catch cylinder sleeve (13) and the lock catch inserting column (16) are screwed down through a locking nut (14), a counter pull rod (7) is arranged at the bottom end of an arm rod of the lock catch inserting column (16), and a traction hook (8) is arranged at the bottom end of the arm rod of the counter pull rod (7).

2. The tension spring clamp according to claim 1, wherein two groups of guide rail sliding grooves (9) are symmetrically formed in the front side and the rear side of the track of the guide rail frame (1), and two groups of guide sliding buckles (11) matched with the guide rail sliding grooves (9) are symmetrically arranged in the front side and the rear side of the seat body of the guide sliding seat (6).

3. The tension spring clamp according to claim 2, wherein two groups of scale marks (10) are symmetrically marked on the front side and the rear side of the track of the guide rail frame (1) right below the notch of the guide rail chute (9), and two groups of scale pointers (12) corresponding to the two groups of scale marks (10) are respectively arranged at the bottoms of the two groups of guide slide buckles (11).

4. The tension spring clamp according to claim 1, wherein the inner cavity of the locking barrel sleeve (13) and the locking plunger (16) are of hexagonal structures.

5. The tension spring clamp according to claim 1, wherein the top of the latch post (16) is provided with a locking screw hole (15) adapted to the locking nut (14).

6. A tension spring clamp according to claim 1, characterized in that the telescopic end of the push-pull cylinder (3) is provided with push-pull holders (4) connected to two sets of arm-force links (5).