Threaded sleeve tail handle thrusting tool

Abstract

The utility model relates to the field of stamping technology application, and discloses a thread bushing tail handle thrust tool, the thread bushing tail handle thrust tool comprises a driving device, a sleeve, a punching needle assembly and an elastic body, the driving device comprises a shell and an output shaft capable of doing linear motion; the sleeve is connected with the shell; the connecting end of the punching needle assembly is located in the sleeve, the impacting end of the punching needle assembly extends out of the sleeve, and the punching needle assembly can move in the axial direction of the sleeve. The elastic body is arranged in the sleeve, the two ends of the elastic body abut against the connecting end of the shell and the connecting end of the punching needle assembly respectively, and an axial channel for the output shaft to do linear motion is formed in the elastic body. The tail punching device has the advantages of saving time, improving tail punching efficiency, reducing labor intensity and reducing labor cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of stamping technology, and particularly relates to a threaded sleeve tail handle punching tool. BACKGROUND

[0002] As an internal thread fastener, a steel wire threaded sleeve is screwed into a matched hole through an installation tool, and due to its own characteristics, an installation handle, that is, a tail handle (as shown in the circle) is formed at the end of the steel wire threaded sleeve, which is bent towards the center. Figure 1 Before a workpiece product is installed into the steel wire threaded sleeve, the tail handle needs to be removed.

[0003] Existing threaded sleeve tail handle punching tools are mostly manual or semi-automatic structures. A semi-automatic punching tool comprises a punch pin, a guide sleeve, a spring and an external cylinder, a piston rod of the external cylinder drives relevant components to quickly impact the punch pin, and the punch pin impacts the tail handle with great kinetic energy to achieve the function of punching off the tail handle.

[0004] However, when the semi-automatic punching tool is used, the punch pin and the spring need to be manually pressed down each time, so that the spring rebounds to perform the punching operation. Since the punch pin needs to be manually pressed down each time, and the work is performed by the force of the spring, a large force is required to compress the spring, which increases the labor intensity of manual operation, reduces the operation efficiency of the threaded sleeve tail handle punching operation, and may cause the spring rebounding force to be out of position, affecting the quality of the punching operation. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a threaded sleeve tail handle punching tool, which can avoid manual pressing before the next punching operation, save time, improve the tail handle punching efficiency, reduce the labor intensity and labor cost.

[0006] To achieve the above-mentioned purpose, the application provides a threaded sleeve tail handle punching tool, which comprises:

[0007] A driving device comprising a housing and an output shaft capable of linear motion;

[0008] A sleeve connected with the housing;

[0009] A punch pin assembly, a connecting end of the punch pin assembly being located in the sleeve, and a striking end of the punch pin assembly extending out of the sleeve, the punch pin assembly being capable of moving along the axial direction of the sleeve;

[0010] An elastic body provided in the sleeve, two ends of the elastic body respectively abutting against the housing and the connecting end of the punch pin assembly, and an axial channel for linear motion of the output shaft being provided in the elastic body.

[0011] Optionally, the punch pin assembly comprises:

[0012] a guide sleeve capable of moving along the axial direction of the sleeve;

[0013] a punch pin arranged in the guide sleeve and capable of moving along the axial direction of the guide sleeve, the impact end of the punch pin extending out of the guide sleeve;

[0014] the two ends of the elastic body abutting against the housing and the punch pin, respectively.

[0015] Optionally, a stepped hole is formed in the guide sleeve, and the punch pin comprises a head portion and a rod portion connected with each other, wherein the cross-sectional area of the head portion is larger than that of the rod portion, the head portion is arranged in the large hole of the stepped hole of the guide sleeve, and the rod portion is arranged in the small hole of the stepped hole of the guide sleeve.

[0016] Optionally, the guide sleeve comprises a large-diameter segment and a small-diameter segment connected with each other, wherein the large-diameter segment is arranged in the sleeve, and a hole is formed in the end face of the sleeve for the small-diameter segment to pass through.

[0017] Optionally, the outer diameter of the small-diameter segment is 0.2mm-1mm smaller than the internal thread of the threaded sleeve after installation.

[0018] Optionally, the guide sleeve, the punch pin, the elastic body and the output shaft of the driving device are coaxially arranged.

[0019] Optionally, the sleeve is detachably connected with the housing.

[0020] Optionally, the sleeve comprises a first sleeve segment and a second sleeve segment which are detachably connected.

[0021] Optionally, one end of the first sleeve segment is threadedly connected with the housing of the driving device, and the other end is connected with the second sleeve segment through a nut.

[0022] Optionally, the elastic body is arranged as a spring.

[0023] Optionally, the driving device is arranged as a pneumatic hammer.

[0024] Through the above technical solution, the threaded sleeve handle punch-off tool can make the punch pin assembly impact the impact end to punch off the threaded sleeve handle through the linear motion of the output shaft of the driving device, and the distance between the housing and the punch pin assembly can be restored through the elastic force of the elastic body abutting between the housing and the punch pin assembly, so as to facilitate the next punch-off operation. Compared with the prior art in which the next punch-off operation can be performed only after manual pressing, time is saved, punch handle efficiency is improved, labor intensity is reduced, and labor cost is also reduced.

[0025] Other features and advantages of the present embodiments will be made apparent by the following detailed description of the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the present embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the present embodiments and serve to explain the present embodiments, but do not limit the present embodiments. Other embodiments can be obtained from a combination of the structures shown in the drawings, without creative labor. In the drawings:

[0027] Figure 1 A schematic view of the structure of a threaded sleeve in the prior art;

[0028] Figure 2 A three-dimensional schematic view of a threaded sleeve handle breaking tool according to an embodiment of the present utility model;

[0029] Figure 3 A three-dimensional schematic view of a threaded sleeve handle breaking tool according to an embodiment of the present utility model; Figure 2 A schematic view of the structure of a threaded sleeve handle breaking tool from another perspective;

[0030] Figure 4 A three-dimensional schematic view of a threaded sleeve handle breaking tool according to an embodiment of the present utility model; Figure 2 A schematic view of the structure of a threaded sleeve handle breaking tool from another perspective;

[0031] Figure 5 A three-dimensional schematic view of a threaded sleeve handle breaking tool according to an embodiment of the present utility model; Figure 4 A sectional view along A-A;

[0032] Figure 6 A three-dimensional schematic view of a threaded sleeve handle breaking tool according to an embodiment of the present utility model; Figure 2 A schematic view of the structure of a threaded sleeve handle breaking tool from another perspective.

[0033] Explanation of Reference Signs

[0034] DETAILED DESCRIPTION

[0035] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0036] In view of the fact that the semi-automatic breaking tool in the prior art needs to be manually compressed to the compressed position by the punch pin and spring, so that the spring rebounds to break the workpiece, the present utility model discloses a threaded sleeve handle breaking tool, like Figures 2-6As shown, the threaded sleeve tail handle breaking tool comprises a driving device 1, a sleeve, a punch assembly and an elastic body, wherein the driving device 1 comprises a housing 1-1 and an output shaft 2 capable of linear motion, the sleeve is connected with the housing 1-1, the punch assembly is provided with an axial connecting end and an axial impact end, the connecting end of the punch assembly is located in the sleeve, and the impact end of the punch assembly extends out of the sleeve, the punch assembly is capable of moving along the axial direction of the sleeve, and the elastic body is arranged in the sleeve and abuts against the housing 1-1 and the connecting end of the punch assembly at two ends respectively, and an axial channel for linear motion of the output shaft is arranged in the elastic body.

[0037] Specifically, when the threaded sleeve tail handle breaking tool is used for breaking the threaded sleeve tail handle, the impact end of the punch assembly abuts against the threaded sleeve tail handle to compress the elastic body, the distance between the connecting end and the output shaft 2 is shortened, the driving device 1 is started to make the output shaft 2 move linearly in the axial channel of the elastic body to impact the connecting end of the punch assembly, and the impact end of the punch assembly breaks the threaded sleeve tail handle, at this time, the impact end is not resisted by the tail handle, and the punch assembly returns to the original position by restoring the elastic body to its original state, so that the next breaking operation is realized, compared with the mode that the next breaking operation can be performed after artificial pressing, time can be saved, the tail breaking efficiency is improved, and the labor intensity is reduced.

[0038] And the breaking device in the prior art is knocked by the eccentric shaft principle through spring compression, and the spring is prone to fatigue (the spring on the knocking shaft is also prone to fatigue), resulting in high maintenance rate, and the driving device in the prior art adopts the linear motion output shaft, and the service life is long and the driving device is not prone to wear or damage.

[0039] The driving device 1 with the output shaft 2 capable of linear motion is well known to those skilled in the art, for example, a pneumatic hammer can be used in the utility model, considering that the gas source is easy to obtain in a factory, and for the convenience of taking, a commercially available handheld pneumatic hammer can be used in the utility model, the entire handheld pneumatic hammer and the breaking tool are arranged in an integrated structure, and the handheld pneumatic hammer can be used, after one threaded sleeve breaking operation, the pneumatic hammer is exhausted, and the elastic body drives the punch assembly away from the output shaft 2 in the absence of external force, which is suitable for handheld operation, the structure is simple, compared with the mode that the next breaking operation can be performed after artificial pressing in the prior art, the utility model is convenient to use, time is saved, the tail breaking efficiency is improved, and the labor cost is also reduced.

[0040] In some embodiments of the utility model, as shown in Figure 5As shown, the punch assembly comprises a guide sleeve 7 and a punch 6, the guide sleeve 7 and the punch 6 are two independent structures separated and replaceable, on the one hand, after being used for a period of time, once the punch 6 is damaged, the structure can be conveniently disassembled for replacement of the punch, on the other hand, the punch 6 and the guide sleeve 7 of corresponding specifications can be replaced according to the tail handle of the threaded sleeve of different specifications to be removed, the guide sleeve 7 is arranged in the sleeve and can move in the axial direction of the sleeve, the punch 6 is arranged in the guide sleeve 7 and can move in the axial direction of the guide sleeve 7, the impact end of the punch 6 is arranged out of the guide sleeve 7, the two ends of the elastic body are respectively in abutment with the shell 1-1 and the punch 6, the linear motion stroke of the output shaft can be set according to actual working conditions, the guide sleeve is arranged so that the direct impact of the breaking force on the punch can be dispersed when the output shaft impacts the punch, the effect of effectively protecting the punch and prolonging the service life is achieved.

[0041] The stepped hole and the stepped shaft are matched to realize positioning, in some embodiments of the utility model, the guide sleeve 7 is provided with a stepped hole, the punch 6 comprises a head 61 and a rod 62 connected with each other, the head 61 is used as a connecting end in abutment with the elastic body, the cross-sectional area of the head 61 is greater than that of the rod 62 to form a stepped shaft matched with the stepped hole in the guide sleeve 7, specifically, the head 61 is arranged in the large hole of the stepped hole of the guide sleeve 7, the rod 62 is arranged in the small hole of the stepped hole of the guide sleeve 7, the guide sleeve 7 and the punch 6 are matched and positioned through the stepped hole of the guide sleeve 7 and the stepped shaft of the punch 6, so that the output shaft 2 impacts the head 61 to drive the guide sleeve 7 to move in the sleeve, the tail handle of the threaded sleeve is broken by the end of the rod 62 as an impact end, the guide sleeve disperses the direct impact of the breaking force on the punch, the effect of effectively protecting the punch and prolonging the service life is achieved.

[0042] It can be understood that the guide sleeve 7 and the punch are not limited to the structure form that the punch 6 can move and be limited in the axial direction of the guide sleeve 7, for example, the punch 6 can be arranged as a substantially rod, at least two symmetrical outer protruding positioning blocks are formed at the end of the punch close to the output shaft, the inner wall of the guide sleeve 7 is correspondingly provided with a groove matched with the outer protruding positioning blocks, the axial depth of the groove can be the same as the depth of the large hole in the stepped hole form, and the axial end of the groove close to the impact end is closed, in this way, the output shaft 2 impacts the punch, the outer protruding positioning blocks in the groove drive the guide sleeve 7 to move in the sleeve, considering the manufacturing cost and durability, the utility model adopts the structure that the stepped hole and the stepped shaft are matched to realize positioning.

[0043] In some embodiments of the utility model, the guide sleeve 7 comprises a large-diameter section and a small-diameter section connected with each other, wherein the large-diameter section of the guide sleeve 7 is arranged in the sleeve, and the end face of the sleeve is provided with a hole for the small-diameter section to pass through, in this way, when the guide sleeve 7 moves in the sleeve, the end face of the sleeve is used for limiting.

[0044] In some embodiments of the utility model, the outer diameter of small diameter section is smaller than the inner diameter of threaded sleeve, so as to facilitate the guide sleeve to extend into the threaded sleeve and align with the position of the tail of threaded sleeve (for example, the operator can make the small diameter section perpendicular to the tail of threaded sleeve) as much as possible, so as to better break the tail handle and improve the impact accuracy of punch pin.

[0045] In order to further improve the breaking accuracy and reliability, in some embodiments of the utility model, the guide sleeve 7, the punch pin 6, the elastic body and the output shaft of the driving device are coaxially arranged.

[0046] In the utility model, after the punch pin assembly, the sleeve and the elastic body are installed, the sleeve and the shell can be fixedly connected (for example, welded) as a whole, but considering that different specifications of punch pin assemblies need to be matched to remove the tail handle of threaded sleeves of different specifications, in order to facilitate the replacement of punch pin assemblies, in some embodiments of the utility model, the sleeve and the shell 1-1 are detachably connected, and the detachable connection facilitates the replacement of punch pin assemblies and guide sleeves of different specifications.

[0047] It should be noted that the way and structure of realizing detachable connection are well known to those skilled in the art, for example, as shown in Figure 5 The connecting part connected with the sleeve is arranged on the shell 1-1 around the output shaft 2, which can be arranged as an inner groove as shown in Figure 5 The inner thread is arranged on the inner wall of the inner groove, and correspondingly, the outer thread is arranged on the outer wall of the inner groove, and the inner thread is arranged in the sleeve, and the detachable connection of the sleeve and the shell is realized through the threaded connection, in addition, the existing pin or pin connection, pneumatic or hydraulic clamp connection and flange connection can also realize the detachable connection of the sleeve and the shell, which will not be described here.

[0048] In the utility model, the sleeve can be arranged as a whole, at this time, the specification of the sleeve is fixed, in order to adapt to punch pin assemblies of different sizes, different specifications of sleeves need to be replaced, and the threaded connection between the sleeve and the shell is easy to fail due to repeated disassembly and assembly, therefore, in some embodiments of the utility model, the sleeve comprises a first sleeve segment 3 and a second sleeve segment 5 which are detachably connected, one end of the first sleeve segment 3 is threadedly connected with the shell 1-1 of the driving device 1, and the other end of the second sleeve segment 5 is threadedly connected, when it is necessary to adjust the guide sleeve to adapt to the tail handle of threaded sleeves of different specifications, the second sleeve segment 5 of the appropriate size can be replaced, and the guide sleeve and the punch pin are also convenient to replace.

[0049] It should be noted that the threaded connection of the first sleeve segment 3 and the second sleeve segment 5 can be provided with internal and external threads on the first sleeve segment 3 and the second sleeve segment 5 respectively, so that the first sleeve segment 3 and the second sleeve segment 5 are directly threaded, or can be provided with external threads on the first sleeve segment 3 and the second sleeve segment 5 respectively, so that the first sleeve segment 3 and the second sleeve segment 5 are threaded by the nut 4. Of course, it can be understood that the first sleeve segment 3 and the second sleeve segment 5 in the utility model are not limited to threaded connection, but can also be other detachable connection forms in the prior art, such as pin or pin connection, pneumatic or hydraulic clamp connection, flange connection, etc. in the prior art, and the utility model will not be described here. Figure 5

[0050] In some embodiments of the utility model, the elastic body is provided as a spring, both ends of the spring are respectively in abutment with the shell and the head 61 of the punch 6, and the output shaft moves linearly in the axial channel of the spring. It can be understood that the elastic body is not limited to the foregoing spring, but can also be a cylindrical rubber body, an axial channel is formed in the axial direction of the cylindrical rubber body, and both ends of the cylindrical rubber body are respectively in contact with the shell and the head 61 of the punch 6.

[0051] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] ​In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A tool for breaking off the end shank of a threaded sleeve, characterized in that, The threaded sleeve tail handle breaking tool comprises: a driving device (1) comprising a housing (1-1) and an output shaft (2) capable of linear motion; a sleeve connected with the housing (1-1); a punch assembly, the connecting end of which is located in the sleeve, and the impact end of which is arranged to extend out of the sleeve, the punch assembly being capable of moving along the axial direction of the sleeve; an elastic body arranged in the sleeve, the two ends of the elastic body each abutting against the housing (1-1) and the connecting end of the punch assembly, and an axial channel for linear motion of the output shaft being provided in the elastic body.

2. The thread tail butt handle break tool of claim 1, wherein, The punch assembly comprises: a guide sleeve (7) capable of moving along the axial direction of the sleeve; a punch (6) arranged in the guide sleeve (7) and capable of moving along the axial direction of the guide sleeve (7), the impact end of the punch (6) extending out of the guide sleeve (7); the two ends of the elastic body each abutting against the housing (1-1) and the punch (6).

3. The thread tail butt tool of claim 2, wherein, The guide sleeve (7) is provided with a stepped hole, and the punch (6) comprises a head (61) and a rod (62) connected with each other, wherein the cross-sectional area of the head (61) is larger than that of the rod (62), the head (61) is arranged in the large hole of the stepped hole of the guide sleeve (7), and the rod (62) is arranged in the small hole of the stepped hole of the guide sleeve (7).

4. A threaded box tail handle break tool according to claim 2 or 3, characterized in that, The guide sleeve (7) comprises a large-diameter segment and a small-diameter segment connected with each other, wherein the large-diameter segment is arranged in the sleeve, and the end face of the sleeve is provided with a hole through which the small-diameter segment passes.

5. The thread tail butt tool of claim 4, wherein, The outer diameter of the small-diameter segment is 0.2-1 mm smaller than the internal thread of the threaded sleeve after installation.

6. The thread tail butt tool of claim 2, wherein, The guide sleeve (7), the punch (6), the elastic body and the output shaft of the driving device are coaxially arranged.

7. The thread tail butt tool of claim 1, wherein, The sleeve is detachably connected with the housing (1-1).

8. The thread tail butt handle break tool of claim 1 or 7, wherein, The sleeve comprises a first sleeve segment (3) and a second sleeve segment (5) detachably connected with each other.

9. The thread tail butt tool of claim 8, wherein, One end of the first sleeve segment (3) is threadedly connected with the housing (1-1) of the driving device (1), and the other end is connected with the second sleeve segment (5) through a nut (4).

10. The thread tail butt tool of claim 1, wherein, The elastic body is arranged as a spring; and / or The driving device is arranged as a pneumatic hammer.

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