Clamping tool

Abstract

The utility model provides a clamping tool, which comprises a guide part with a guide hole, the guide hole comprises a first hole section and a second hole section which are communicated in sequence, the first hole section is used for inserting an electric core, the second hole section is used for inserting one end of a shell with an opening, and the inner wall of the second hole section abuts against the outer wall of the shell; the inner diameter of one end, close to the second hole section, of the first hole section is smaller than that of one end, close to the first hole section, of the second hole section, so that rubbing between the roll core and the opening when entering the shell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, specifically relates to a clamping tool. BACKGROUND

[0002] In the related art, the gap between the roll core and the shell is getting smaller and smaller, so that the precision requirement when the roll core enters the shell is higher, and the roll core is more likely to scratch the shell when entering the shell, resulting in defects.

[0003] Therefore, the related art has the technical problem that the roll core is prone to scratching when entering the shell. SUMMARY

[0004] The embodiment of the utility model provides a clamping tool, can improve the technical problem that the existing clamping tool has big operation power consumption and big clamping tool size.

[0005] In the first aspect, the embodiment of the utility model provides a clamping tool, comprising:

[0006] The guide portion is formed with a guide hole, along the direction of the guide hole, the guide hole includes first hole section and second hole section communicated in sequence, the first hole section is used for inserting the roll core, the second hole section is used for inserting the one end of the shell with opening, and the inner wall of the second hole section is used for abutting with the outer wall of the shell;

[0007] Wherein, the inner diameter of the first hole section close to one end of the second hole section is less than the inner diameter of the second hole section close to one end of the first hole section.

[0008] In an embodiment, the inner diameter of the second hole section close to one end of the first hole section is 0.2mm to 0.8mm different from the inner diameter of the first hole section close to one end of the second hole section.

[0009] In an embodiment, the opening of the shell is correspondingly arranged with the first hole section, and the inner diameter of the opening is greater than or equal to the inner diameter of the first hole section close to one end of the second hole section.

[0010] In an embodiment, the inner diameter of the first hole section away from one side of the second hole section is greater than the inner diameter of the first hole section close to one side of the second hole section.

[0011] In an embodiment, along the direction of the first hole section close to the second hole section, the inner diameter of the first hole section gradually decreases.

[0012] In an embodiment, the first hole section has an inner diameter ranging from 26.5 mm to 28.5 mm at one end away from the second hole section, and an inner diameter ranging from 24.9 mm to 25.5 mm at one end close to the second hole section, and the second hole section has an inner diameter ranging from 25.5 mm to 26.5 mm at one end close to the first hole section.

[0013] In an embodiment, the first hole section further comprises a first sub-hole section and a second sub-hole section sequentially connected in the direction away from the second hole section, the first sub-hole section has an equal inner diameter, and the second sub-hole section has an inner diameter sequentially increasing in the direction away from the second hole section.

[0014] In an embodiment, the guide part comprises a first sub-guide part and a second sub-guide part oppositely arranged, the first sub-guide part is movably connected with the second sub-guide part, and the first sub-guide part and the second sub-guide part are movable between a clamping position and a separation position, wherein, in the clamping position, the first sub-guide part and the second sub-guide part enclose the guide hole, and in the separation position, the first sub-guide part and the second sub-guide part are spaced apart.

[0015] In an embodiment, a pressure sensor is further included, and a top rod is used to push the winding core from one end of the first hole section away from the second hole section into the first hole section, and the pressure sensor is used to detect the pressure between the top rod and the winding core.

[0016] In an embodiment, the pressure sensor is located at the other end of the top rod away from the winding core, or between the two ends of the top rod, or between the top rod and the winding core.

[0017] The embodiment of the utility model has the advantages of:

[0018] In the embodiment of the utility model, the clamping tool comprises a guide part, the guide part comprises a first hole section and a second hole section in the direction of the guide hole, the first hole section in the first hole section is used for guiding the winding core, and the second hole section in the second hole section is used for clamping and fixing the shell, the inner diameter of the first hole section close to one side of the second hole section is smaller than the inner diameter of the second hole section close to one side of the first hole section, so that the winding core does not rub against the shell when passing through the guide hole and entering the shell, and the technical problem that the winding core is prone to rubbing against the shell when entering the shell in the related art is alleviated. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described in the following embodiment only represent some of the embodiments of the present application, and do not represent all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and the specific direction is the direction of the drawing surface in the drawing. "Inner" and "outer" are relative to the outline of the device.

[0020] Figure 1 is a structural schematic diagram of the clamping tool provided by the embodiment of the present application;

[0021] Figure 2 is a top view schematic diagram of the clamping tool provided by the embodiment of the present application;

[0022] Figure 3 is a sectional view schematic diagram of the clamping tool provided by the embodiment of the present application;

[0023] Figure 4 is a structural schematic diagram of the first sub-guiding part in the clamping tool provided by the embodiment of the present application;

[0024] Figure 5 is a schematic diagram of the ejector rod and the pressure sensor in the clamping tool provided by the embodiment of the present application.

[0025] 1, guiding part; 11, first sub-guiding part; 12, second sub-guiding part; 2, guiding hole; 21, first hole section; 22, second hole section; 201, first sub-hole section; 202, second sub-hole section; 3, ejector rod; 4, pressure sensor; 5, fixing hole; 6, direction into the shell. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and do not represent all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and the specific direction is the direction of the drawing surface in the drawing. "Inner" and "outer" are relative to the outline of the device.

[0027] In addition, the terms "first", "second", and similar words do not represent any order, quantity, or importance, but are only used to distinguish different technical features. The term "multiple" and similar words represent two or more, unless otherwise explicitly limited.

[0028] Referring to Figure 1 , Figure 2 , Figure 3 The embodiment of the utility model provides a clamping tool, including guide portion 1, guide portion 1 is formed with guide hole 2, along the direction of guide hole 2, guide hole 2 includes first hole section 21 and second hole section 22 that communicate in proper order, first hole section 21 is used for the insertion of power core, second hole section 22 is used for the insertion of the one end of shell with opening, the inner wall of second hole section 22 is used for the abutment of the outer wall of shell, wherein the inner diameter of first hole section 21 near one end of second hole section 22 is less than the inner diameter of second hole section 22 near one end of first hole section 21.

[0029] It can be understood that the inner wall of the second hole section 22 is used for abutting with the outer wall of the shell to fix the shell, so that the opening of the shell corresponds to the first hole section 21, and the roll core is conveniently passed through the first hole section 21 to enter the opening.

[0030] In the embodiment, the guide hole 2 includes the first hole section 21 and the second hole section 22, the second hole section 22 is used for clamping the shell, the inner diameter of the first hole section 21 near one end of the second hole section 22 is less than the inner diameter of the second hole section 22 near one end of the first hole section 21, so as to avoid the roll core from scratching the opening of the shell when entering the shell, to realize high-efficiency and high-quality shell-entering production, and improve the matching precision of the roll core and the shell.

[0031] The technical solutions of the present application will be described in conjunction with specific embodiments.

[0032] In an embodiment, referring to Figure 3 The difference between the inner diameter of the second hole section 22 near one end of the first hole section 21 and the inner diameter of the first hole section 21 near one end of the second hole section 22 is in the range of 0.2 mm to 0.8 mm.

[0033] The difference between the inner diameter of the second hole section 22 near one end of the first hole section 21 and the inner diameter of the first hole section 21 near one end of the second hole section 22 can be any one of 0.2 mm, 0.4 mm, 0.6 mm, and 0.8 mm.

[0034] It can be understood that, through the difference in the inner diameter, a stepped structure for hiding at least part of the side edge of the shell can be formed. When the difference in the inner diameter is less than 0.2 mm, the edge of the shell is not easy to be completely hidden in the stepped structure, and the part of the shell that is not hidden is easy to scratch the roll core when entering the shell, thereby causing defects. When the difference in the inner diameter is greater than 0.8 mm, part of the opening of the shell is also hidden below the stepped structure, which is not conducive to the roll core entering the shell.

[0035] In an embodiment, referring to Figure 3The opening of the shell is arranged corresponding to the first hole section 21, and the inner diameter of the opening is greater than or equal to the inner diameter of the first hole section 21 close to the second hole section 22.

[0036] It can be understood that, by making the inner diameter of the opening of the shell greater than or equal to the inner diameter of the first hole section 21 close to the second hole section 22, the part of the opening opposite to the first hole section 21 is greater than or equal to the inner diameter of the first hole section 21 close to the second hole section 22, so that the winding core enters the opening of the shell through the first hole section 21, and the scratch between the winding core and the shell when the winding core enters the shell is reduced.

[0037] In an embodiment, referring to Figure 3 , the inner diameter of the first hole section 21 away from the second hole section 22 is greater than the inner diameter of the first hole section 21 close to the second hole section 22.

[0038] It can be understood that, by making the inner diameter of the first hole section 21 away from the shell larger, the winding core is facilitated to enter the guide part 1, and the scratch between the winding core and the guide part 1 when the winding core enters the first hole section 21 of the guide part 1 is reduced.

[0039] In the embodiment, the inner diameter of the first hole section 21 away from the second hole section 22 is greater than the inner diameter of the first hole section 21 close to the second hole section 22, so that the winding core is prevented from scratching the guide part 1 when the winding core enters the first hole section 21 of the guide part 1.

[0040] In an embodiment, the inner diameter of the first hole section 21 gradually decreases along the direction of the first hole section 21 close to the second hole section 22.

[0041] It can be understood that, by making the inner diameter of the first hole section 21 gradually decrease, the inner surface of the first hole section 21 of the guide hole 2 is more gentle, no step or protrusion is formed in the first hole section 21, the inner wall of the first hole section 21 is not easy to scratch the winding core, so that the winding core can move smoothly in the first hole section 21.

[0042] In some embodiments, the inner diameter of the first hole section 21 can decrease along the direction of the first hole section 21 close to the second hole section 22, but is not limited to decrease.

[0043] The decreasing trend of the inner diameter of the first hole section 21 can be small first and large later, or large first and small later, which is not limited herein.

[0044] It can be understood that, as long as the inner diameter of the first hole section 21 away from the second hole section 22 is greater than the inner diameter of the first hole section 21 close to the second hole section 22, the winding core is prevented from scratching the guide part 1 when the winding core enters the first hole section 21 of the guide part 1.

[0045] In an embodiment, the inner diameter of the first hole section 21 away from the one end of the second hole section 22 ranges from 26.5 mm to 28.5 mm, the inner diameter of the first hole section 21 close to the one end of the second hole section 22 ranges from 24.9 mm to 25.5 mm, and the inner diameter of the second hole section 22 close to the one end of the first hole section 21 ranges from 25.5 mm to 26.5 mm.

[0046] In an embodiment, the inner diameter of the first hole section 21 away from the one end of the second hole section 22 can be any one of 26.5 mm, 27.5 mm, and 28.5 mm.

[0047] In an embodiment, the inner diameter of the first hole section 21 close to the one end of the second hole section 22 can be any one of 24.9 mm, 25.2 mm, and 25.5 mm.

[0048] In an embodiment, the inner diameter of the second hole section 22 close to the one end of the first hole section 21 can be any one of 25.5 mm, 26 mm, and 26.5 mm.

[0049] It can be understood that the first hole section 21 is used for guiding the winding core, the difference between the inner diameter of the first hole section 21 away from the one end of the second hole section 22 and the outer diameter of the winding core ranges from 2.0 mm to 2.6 mm, so that the winding core can enter the guiding part 1 better and avoid scratching the guiding part 1 when entering the guiding part 1.

[0050] In an embodiment, the first hole section 21 further comprises a first sub-hole section 201 and a second sub-hole section 202 which are sequentially communicated in the direction away from the second hole section 22, the inner diameter of the first sub-hole section 201 is set to be equal, and the inner diameter of the second sub-hole section 202 sequentially increases in the direction away from the second hole section 22.

[0051] It can be understood that the inner diameter of the second sub-hole section 202 sequentially increases in the direction away from the second hole section 22, so that the winding core is more likely to enter the first hole section 21 from the side of the second sub-hole section 202 away from the second hole section 22 and enter the first sub-hole section 201 through the guidance of the second sub-hole section 202, the inner diameter of the first sub-hole section 201 is set to be equal, so that the winding core can move axially in the first sub-hole section 201 without deviation, the winding core can be vertically inserted into the opening of the shell of the second hole section 22, and the risk of scratching when the winding core enters the shell is reduced.

[0052] In an embodiment, please refer to Figure 1 、 Figure 3 、 Figure 4, the guide part 1 includes a first sub-guide part 11 and a second sub-guide part 12 arranged oppositely, the first sub-guide part 11 is movably connected with the second sub-guide part 12, and the first sub-guide part 11 and the second sub-guide part 12 are movable between a clamping position and a separation position, wherein, at the clamping position, the first sub-guide part 11 and the second sub-guide part 12 enclose to form the guide hole 2, and at the separation position, the first sub-guide part 11 and the second sub-guide part 12 are arranged at intervals.

[0053] It can be understood that the first sub-guide part 11 and the second sub-guide part 12 are relatively close to the clamping position, and the opposite sides of the first sub-guide part 11 and the second sub-guide part 12 are in contact to clamp and fix the shell, while enclosing to form the guide hole 2, and guiding the core into the shell by the guide hole 2, thereby facilitating the core into the shell and reducing the risk of scratching when the core enters the shell.

[0054] It should be noted that after completing the core into the shell operation on a shell, the shell with the completed core into the shell can be taken out by relatively moving the first sub-guide part 11 and the second sub-guide part 12 away, and then the first sub-guide part 11 and the second sub-guide part 12 are relatively close to the clamping position to clamp a new shell and continue the core into the shell process.

[0055] In this embodiment, by making the guide part 1 include the first sub-guide part 11 and the second sub-guide part 12 that can be relatively close or far away, the shell is better clamped to fix the shell and complete the alignment of the guide hole 2 and the opening of the shell to guide the core into the shell, thereby reducing the risk of scratching when the core enters the shell.

[0056] In an embodiment, referring to Figure 5 , the device further comprises a top rod 3 and a pressure sensor 4, the top rod 3 is used to push the core from the first hole section 21 to the first hole section 21 away from one end of the second hole section 22, and the pressure sensor 4 is used to detect the pressure between the top rod 3 and the core.

[0057] As shown in Figure 5 , the direction 6 of the core into the shell driven by the top rod 3 is the side of the top rod 3 away from the pressure sensor 4; the setting position of the pressure sensor 4 can be changed, and the pressure sensor 4 can be located on the side of the top rod 3 facing the direction 6 of the core into the shell.

[0058] It can be understood that the top rod 3 drives the core to be inserted into the first hole section 21, and when the core scratches the shell, the value of the pressure sensor 4 will increase, and when the value of the pressure sensor 4 exceeds the preset threshold value, it indicates that the core scratches the shell when entering the shell, thereby timely alarm feedback and reducing the generation and outflow of defective products.

[0059] In an embodiment, the pressure sensor 4 is located at the other end of the top rod 3 away from the winding core, or between the two ends of the top rod 3, or between the top rod 3 and the winding core.

[0060] It can be understood that one end of the pressure sensor 4 directly or indirectly abuts against the winding core, and the other end abuts against a fixed part. When the winding core rubs against the shell, the winding core is pressed to cause the pressure sensor 4 to be pressed, and the other end of the pressure sensor 4 abuts against the fixed part. Therefore, the pressure at which the pressure sensor 4 is pressed is detected by the pressure sensor 4, so that whether an alarm feedback is needed is determined by the pressure value detected by the pressure sensor 4, and the generation and outflow of defective products are reduced.

[0061] In an embodiment, the clamping tool is further formed with a recess for avoiding the cover plate of the winding core when the winding core is inserted into the first hole section 21, so that the winding core moves along the first hole section 21 to approach the shell.

[0062] The cover plate and the shell surround the accommodating cavity, and the winding core is located in the accommodating cavity after entering the shell.

[0063] The cover plate is movably connected to one end of the winding core away from the bottom surface of the shell through a connecting part, and the cover plate moves relative to the shell and cooperates with the shell to form the accommodating cavity for accommodating the winding core after the winding core enters the shell.

[0064] It can be understood that by movably connecting the cover plate to one end of the winding core, the cover plate does not need to be set by adding a process after the winding core enters the shell, and the cover plate movably connected to one end of the winding core can form the accommodating cavity by moving to protect the top surface of the side of the winding core facing the cover plate.

[0065] In an embodiment, at least one fixing hole 5 is arranged on the first sub-guide part 11 and the second sub-guide part 12 respectively, and the first sub-guide part 11 and the second sub-guide part 12 are connected to the moving part through the fixing hole 5 respectively, so that the first sub-guide part 11 and the second sub-guide part 12 approach or move away from each other.

[0066] The fixing hole 5 can be multiple.

[0067] The multiple fixing holes 5 are periodically arranged and can be symmetrically arranged to make the fixing more stable and firm.

[0068] The moving part can be a pneumatic cylinder.

[0069] It can be understood that the first sub-guide part 11 and the second sub-guide part 12 are fixedly connected to different moving parts through the fixing hole 5, and approach or move away from each other through different moving parts, so as to drive the first sub-guide part 11 and the second sub-guide part 12 to approach or move away from each other, thereby achieving the operation of clamping or replacing the clamped shell.

[0070] In an embodiment, the inner wall of the first hole section 21 is smooth.

[0071] It can be understood that the inner wall of the first hole section 21 can not be provided with a step to prevent the step from scratching the winding core.

[0072] It should be noted that the inner wall of the first hole section 21 is smooth, which can on the one hand make the movement of the winding core in the first hole section 21 more smooth and reduce the obstruction to the winding core, and on the other hand can reduce the pressure sensor 4 from sensing the scratch caused by the contact between the inner wall of the first hole section 21 and the winding core, so that the pressure sensor 4 detects the abnormality when the winding core has not contacted the shell, which can improve the detection accuracy of the pressure sensor 4 and the matched components.

[0073] The embodiments of the present application are described in detail above, and the specific examples are applied to the principle and implementation mode of the present application. The above embodiment is only used to help understand the method and core idea of the present application. Meanwhile, for those skilled in the art, the specific implementation mode and application range will be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A clamping fixture, characterized in that, include: A guide portion (1) is formed with a guide hole (2). Along the direction of the guide hole (2), the guide hole (2) includes a first hole segment (21) and a second hole segment (22) connected in sequence. The first hole segment (21) is used for inserting the power core, and the second hole segment (22) is used for inserting the end of the housing with an opening. The inner wall of the second hole segment (22) is used to abut against the outer wall of the housing. Wherein, the inner diameter of the first hole segment (21) near the end of the second hole segment (22) is smaller than the inner diameter of the second hole segment (22) near the end of the first hole segment (21).

2. The clamping fixture according to claim 1, characterized in that, The difference between the inner diameter of the second hole segment (22) near the end of the first hole segment (21) and the inner diameter of the first hole segment (21) near the end of the second hole segment (22) is in the range of 0.2 mm to 0.8 mm.

3. The clamping fixture according to claim 1, characterized in that, The opening of the housing is provided corresponding to the first hole segment (21), and the inner diameter of the opening is greater than or equal to the inner diameter of the first hole segment (21) near the end of the second hole segment (22).

4. The clamping fixture according to claim 1, characterized in that, The inner diameter of the first hole segment (21) on the side away from the second hole segment (22) is greater than the inner diameter of the first hole segment (21) on the side closer to the second hole segment (22).

5. The clamping fixture according to claim 4, characterized in that, Along the direction from the first hole segment (21) to the second hole segment (22), the inner diameter of the first hole segment (21) gradually decreases.

6. The clamping fixture according to claim 4, characterized in that, The inner diameter of the first hole segment (21) at the end away from the second hole segment (22) ranges from 26.5 mm to 28.5 mm, the inner diameter of the first hole segment (21) at the end near the second hole segment (22) ranges from 24.9 mm to 25.5 mm, and the inner diameter of the second hole segment (22) at the end near the first hole segment (21) ranges from 25.5 mm to 26.5 mm.

7. The clamping fixture according to claim 4, characterized in that, The first hole segment (21) further includes a first sub-hole segment (201) and a second sub-hole segment (202) connected sequentially in a direction away from the second hole segment (22). The inner diameter of the first sub-hole segment (201) is set to be equal, and the inner diameter of the second sub-hole segment (202) increases sequentially in a direction away from the second hole segment (22).

8. The clamping fixture according to claim 1, characterized in that, The guide portion (1) includes a first sub-guide portion (11) and a second sub-guide portion (12) disposed opposite to each other. The first sub-guide portion (11) and the second sub-guide portion (12) are movably connected. The first sub-guide portion (11) and the second sub-guide portion (12) move between a clamping position and a separating position. In the clamping position, the first sub-guide portion (11) and the second sub-guide portion (12) surround to form the guide hole (2). In the separating position, the first sub-guide portion (11) and the second sub-guide portion (12) are spaced apart.

9. The clamping fixture according to claim 1, characterized in that, It also includes a push rod (3) and a pressure sensor (4), the push rod (3) being used to push the core from the end of the first hole section (21) away from the second hole section (22) into the first hole section (21), and the pressure sensor (4) being used to detect the pressure between the push rod (3) and the core.

10. The clamping fixture according to claim 9, characterized in that, The pressure sensor (4) is located at the other end of the top rod (3) away from the core, or between the two ends of the top rod (3), or between the top rod (3) and the core.

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