Spring hook correcting device

Abstract

The utility model provides a spring hook correcting device. The spring hook correcting device comprises a correcting tool and a rotary material moving tool used for moving a spring hook between a clamping device and the correcting tool. The correcting tool comprises a spring hook correcting groove, a correcting support, a first driving piece and a jacking rod which is connected with the first driving piece and used for pressing a long section of the spring hook. The correcting tool further comprises a fixing rod used for fixing one end of the spring hook, a second driving piece connected with the fixing rod and used for controlling the fixing rod to stretch out and draw back, a stretching rod used for stretching the other end of the spring hook and a third driving piece connected with the stretching rod and used for controlling the stretching rod to stretch out and draw back. And the fourth driving piece is used for controlling the stretching rod to stretch the spring hook. Full-automatic correction of the spring hook can be achieved, the spring hook is stretched in the length direction, and engagement of protrusions of a long section and a short section and grooves is promoted; production efficiency is improved, product quality is guaranteed, and rejection rate is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the spring hook production field, in particular to a spring hook correcting device. BACKGROUND

[0002] The spring hook is a common hardware product, which is widely used in mountaineering buckles, cord buckles, pet chains, key accessories, special-shaped chains, luggage buckles, connecting hooks and anti-skid chains. The spring hook is mostly in the shape of a gourd, which is formed by a C-shaped long section and a straight short section hinged into a closed ring by a rivet. The long section and the short section are hinged at one end by a rivet, and the other end is provided with a groove and a protrusion, so as to be engaged with each other to realize connection. After the spring hook is assembled, the spring hook needs to be detected, which includes pressing the short section to check whether the short section is easy to open, whether the short section can be reliably reset under the action of a spring or a torsion spring, and whether the long section and the short section are offset left and right.

[0003] The patent No. CN 202110286311.9 provides a spring hook checking machine, which comprises a checking device for pressing the short section of the spring hook and a detection device for detecting the closing condition of the short section of the spring hook, so as to detect the short section recovery closing condition after the checking piece is pressed, thereby realizing sorting and screening. The spring hook checking machine only completes the basic screening, and cannot repair the spring hooks with problems. After the screening is completed, the problems of the spring hooks still need to be repaired by manual work, which is troublesome, low in efficiency, large in subjectivity, high in labor cost, and cannot guarantee the product quality. UTILITY MODEL CONTENT

[0004] The application provides a spring hook correcting device, which is used for automatically correcting the assembled spring hook, so as to automatically correct the spring hook, make the groove and the protrusion between the long section and the short section of the spring hook better engaged, improve the production efficiency, guarantee the product quality and reduce the waste rate.

[0005] The application provides a spring hook correcting device, which is installed corresponding to the clamping device on the rotating disc, and comprises a correcting tool and a rotating material moving tool for moving the spring hook between the clamping device and the correcting tool; the correcting tool comprises a spring hook correcting groove, a correcting support, a first driving piece and a pressing rod connected with the first driving piece and used for pressing the long section of the spring hook; the correcting tool further comprises a fixing rod used for fixing one end of the spring hook, a second driving piece connected with the fixing rod and used for controlling the extension and retraction of the fixing rod, a stretching rod used for stretching the other end of the spring hook, a third driving piece connected with the stretching rod and used for controlling the extension and retraction of the stretching rod, and a fourth driving piece used for controlling the stretching rod to stretch the spring hook.

[0006] Further, the rotating transfer tool comprises a rotating transfer driving member and transfer clamping jaws connected to both sides of the rotating transfer driving member. The rotating transfer driving member comprises a first cylinder at the bottom for driving in the height direction, a second cylinder mounted above the first cylinder, a connecting member sleeved above the second cylinder, and third cylinders connected to both sides of the connecting member, which can drive the transfer clamping jaws to open or close. The second cylinder is used to drive the connecting member to move circumferentially, so as to rotate; so that the transfer clamping jaws move between the clamping device and the correction tool.

[0007] Further, the spring hook correction groove is used to accommodate the spring hook to be corrected, the spring hook stands in the spring hook correction groove and the long section is attached to the groove bottom of the spring hook correction groove. In order to facilitate the pressing of the long section by the pressing rod, the engagement part of the long section and the short section is higher than the groove opening of the spring hook correction groove.

[0008] Further, the first driving member is installed at the top end of the correction support, and a pressing rod for pressing the long section of the spring hook is installed at the bottom end of the first driving member.

[0009] Further, the spring hook correction groove is installed on the front side of the correction support, and the spring hook to be corrected is placed in the groove along the length direction of the spring hook correction groove; the fourth driving member is installed on the back side of the correction support and connected to the stretching rod through the correction support.

[0010] Further, in order to facilitate the stretching of the spring hook in the length direction, so that the grooves and protrusions on the long section and the short section better engage, the second driving member and the third driving member are respectively arranged on the left and right sides of the spring hook correction groove; the second driving member is connected to one end of a fixed rod, and the other end of the fixed rod can extend to the tail end of the spring hook; the third driving member is connected to one end of a stretching rod, and the other end of the stretching rod can extend to the head end of the spring hook. The tail end here refers to the small loop end of the spring hook; the head end refers to the large loop end of the spring hook.

[0011] Further, in order to facilitate the complete pushing of the spring hook in the spring hook correction groove by the rotating transfer tool, a fifth driving member is installed on one side of the spring hook correction groove, and a baffle for pushing the spring hook to be corrected into the spring hook correction groove is connected to the fifth driving member. The baffle is located at the front end of the spring hook correction groove and moves linearly under the drive of the fifth driving member. In the normal state, the fifth driving member with the baffle moves away from the front end of the spring hook correction groove, so as to avoid interfering with the placement or clamping of the spring hook by the rotating transfer tool in the correction groove; after the rotating transfer tool places the spring hook into the spring hook correction groove, the fifth driving member with the baffle moves towards the front end of the spring hook correction groove, and the baffle completely loads the spring hook into the correction groove.

[0012] The main reason why the short section of the spring hook cannot be opened after being pressed or cannot be reset during the production and assembly process of the spring hook is that the protrusions and grooves of the short section and the long section are not completely engaged, and there is a deviation in the length direction of the spring hook.

[0013] The rotating transfer driving member can be combined by multiple air cylinders, and is installed between the rotating disc and the correction tool. The rotating transfer driving member can rotate to drive the material transfer clamping jaw away from or close to the clamping device, and drive the material transfer clamping jaw to clamp or release the spring hook, so as to realize the material transfer between the clamping device on the rotating disc and the spring hook correction slot.

[0014] After the spring hook is transferred to the spring hook correction slot by the rotating transfer tool, the fifth driving member drives the baffle to completely push the spring hook into the correction slot. After the spring hook is pushed into the slot, first, the first driving member drives the pressing rod to press the long section several times, so as to promote the engagement between the recess and the protrusion between the long section and the short section. Second, the second driving member drives the fixing rod to extend to the inside of the small end of the spring hook, so as to fix the small end of the spring hook, and avoid the movement of the spring hook when the other end is stretched. Third, the third driving member drives the stretching rod to extend to the inside of the large end of the spring hook. Then, the fourth driving member controls the stretching rod to move away from the fixing rod, so as to realize the stretching of the spring hook, further promote the engagement between the recess and the protrusion between the long section and the short section, and facilitate the pressing opening and resetting of the short section. After the correction is completed, the spring hook is transferred to the clamping device on the rotating disc by the rotating transfer tool.

[0015] The first to fifth driving members can be composed of air cylinders, and the actions of the driving members are controlled by the controller.

[0016] The spring hook correction device provided by the embodiments of the present application can achieve the following beneficial effects:

[0017] The present application can realize the full-automatic correction of the spring hook, stretch the spring hook in the length direction, promote the engagement between the protrusion and the recess of the long section and the short section, improve the production efficiency, guarantee the product quality, and reduce the waste rate. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. The drawings explained herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the open state of the spring hook;

[0020] Figure 2 It is a schematic diagram of the closed state of the spring hook;

[0021] Figure 3 It is a schematic diagram of the structure of the clamping device of the present application;

[0022] Figure 4This is a schematic diagram of the rotating material transfer fixture of this application;

[0023] Figure 5 This is a schematic diagram of the calibration fixture used in this application.

[0024] Among them, 1. Correction fixture, 2. Rotary material transfer fixture, 3. Spring hook correction groove, 4. Correction bracket, 5. First driving component, 6. Top pressure rod, 7. Fixing rod, 8. Second driving component, 9. Tensioning rod, 10. Third driving component, 11. Fourth driving component, 12. Fifth driving component, 13. Baffle, 14. Rotary material transfer driving component, 15. Material transfer gripper. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] like Figure 1 , Figure 2 As shown, the spring hook includes a C-shaped long section and a straight short section. One end of the long section and the short section are hinged by rivets, and the other end is provided with grooves and protrusions, so that they can interlock to achieve connection.

[0027] like Figure 3 As shown, this is a clamping device installed on the rotating disk to support the spring hook to be tested.

[0028] like Figure 4 , Figure 5 As shown, a spring hook correction device is installed corresponding to a clamping device on a rotating disk, including a correction fixture 1 and a rotary transfer fixture 2 for transferring the spring hook between the clamping device and the correction fixture 1.

[0029] The correction tool 1 comprises a spring hook correction groove 3 for accommodating the spring hook to be corrected, a correction support 4, a first driving member 5 installed at the top end of the correction support 4, and a top pressing rod 6 connected to the bottom end of the first driving member 5 for pressing the long section of the spring hook.

[0030] The second driving member 8 and the third driving member 10 are respectively arranged at the left and right sides of the spring hook correction groove 3. The second driving member 8 is connected to one end of the fixing rod 7, and the other end of the fixing rod 7 can be extended to the tail end of the spring hook. The third driving member 10 is connected to one end of the stretching rod 9, and the other end of the stretching rod 9 can be extended to the head end of the spring hook. One side of the spring hook correction groove 3 is provided with a fifth driving member 12, and the fifth driving member 12 is connected with a baffle 13 for pushing the spring hook to be corrected into the spring hook correction groove 3.

[0031] The rotary material transfer tool 2 comprises a rotary material transfer driving member 14 and material transfer clamping jaws 15 connected to the left and right sides of the rotary material transfer driving member 14.

[0032] The rotary material transfer driving member 14 can be composed of multiple air cylinders, and is installed between the rotating disc and the correction tool 1. The rotary material transfer driving member 14 can rotate to drive the material transfer clamping jaws 15 away from or close to the clamping device, drive the material transfer clamping jaws 15 to clamp or release the spring hook, so as to realize the material transfer between the clamping device on the rotating disc and the spring hook correction groove.

[0033] After the spring hook is transferred to the spring hook correction groove 3 by the rotary material transfer tool 2, the fifth driving member 12 drives the baffle 13 to completely push the spring hook into the correction groove 3. After the spring hook is put into the groove, firstly, the first driving member 5 drives the top pressing rod 6 to press the long section for several times, so as to promote the engagement between the groove and the protrusion between the long section and the short section. Secondly, the second driving member 8 drives the fixing rod 7 to extend to the inside of the tail end of the spring hook for fixing the small ring end of the spring hook, so as to avoid the movement of the spring hook when the other end is stretched. Thirdly, the third driving member 10 drives the stretching rod 9 to extend to the other end of the spring hook, i.e. the large ring end of the spring hook. Then, the fourth driving member 11 controls the stretching rod 9 to move away from the fixing rod 7, so as to realize the stretching of the spring hook, further promote the engagement between the groove and the protrusion between the long section and the short section, and facilitate the pressing opening and resetting of the short section. After the correction is completed, the spring hook is transferred to the clamping device on the rotating disc by the rotary material transfer tool 2.

[0034] The first to fifth driving members can be cylinders, and the actions of the driving members are controlled by the controller.

[0035] It should be noted that the driving member of the device can be composed of a cylinder, but the specific structure and connection relationship are not specifically limited, as long as the functions described in the device can be realized. The fixed rod, the stretching rod, and the baffle structure are not limited, as long as the functions described in the device can be realized.

[0036] It should also be noted that the terms "comprising", "including", or any other variation thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such a process, method, article, or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article, or device including the element.

[0037] The above only describes the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A spring hook correction device, characterized in that: The device includes a calibration fixture and a rotary transfer fixture for moving the spring hook between the clamping device and the calibration fixture. The calibration fixture includes a spring hook calibration groove, a calibration bracket, a first driving member, and a pressing rod connected thereto for pressing the long section of the spring hook. The calibration fixture also includes a fixing rod for fixing one end of the spring hook and a second driving member connected thereto for controlling the extension and retraction of the fixing rod, a tensioning rod for stretching the other end of the spring hook and a third driving member connected thereto for controlling the extension and retraction of the tensioning rod, and a fourth driving member for controlling the tensioning rod to stretch the spring hook.

2. The spring hook correction device according to claim 1, characterized in that: The rotary transfer fixture includes a rotary transfer drive and transfer grippers connected to both sides of the rotary transfer drive.

3. The calibration device according to claim 1, characterized in that: The spring hook correction groove is used to accommodate the spring hook to be corrected. The spring hook stands in the spring hook correction groove and the long section fits against the bottom of the groove. The meshing part of the long section and the short section is higher than the opening of the spring hook correction groove.

4. The calibration device according to claim 1, characterized in that: The first drive unit is mounted on the top of the correction bracket and a top pressure rod for pressing the long section of the spring hook is mounted on the bottom of the first drive unit.

5. The calibration device according to claim 3, characterized in that: The spring hook correction groove is installed on the front side of the correction bracket and the spring hook to be corrected is placed in the groove along the length direction of the spring hook correction groove; the fourth driving component is installed on the back side of the correction bracket and passes through the correction bracket to connect to the tension rod.

6. The calibration device according to claim 5, characterized in that: The second and third driving components are respectively disposed on the left and right sides of the spring hook correction groove; the second driving component is connected to one end of the fixing rod, and the other end of the fixing rod can extend to the tail end of the spring hook; the third driving component is connected to one end of the tension rod, and the other end of the tension rod can extend to the head end of the spring hook.

7. The calibration device according to claim 5, characterized in that: A fifth driving component is installed on one side of the spring hook correction groove, and the fifth driving component is connected to a baffle for pushing the spring hook to be corrected into the spring hook correction groove.

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