Electric F clamp

Abstract

The invention relates to an electric F clamp which comprises a tool rod and a tool head, the end of the tool rod is provided with a square head used for being connected with the tool head, the tool head comprises a fixed clamp body and a movable clamp body, one side of the movable clamp body is provided with a first clamping plate, the other side of the movable clamp body is movably connected with the fixed clamp body, and one side of the fixed clamp body is provided with a second clamping plate. The square head of the tool rod is inserted into the square head sleeve, and the movable clamp body is driven to linearly move through the gear assembly, so that the first clamping plate is close to or far away from the second clamping plate; the tool head of the F clamp drives the square head sleeve to rotate through the tool rod, and the square head sleeve drives the movable clamp body to linearly move through the gear assembly, so that the distance between the two clamping plates is adjusted, the electric and manual dual-adjustment mode is achieved, adjustment is convenient, and the adjustment speed is high.

Description

Technical Field

[0001] The invention relates to the technical field of fastening tools, and in particular to an electrically powered F-clamp. Background Art

[0002] F clamp is a kind of fastening tool, can be used for disassembling and installing various parts. Existing F clamp mostly comprises a tool bar and a tool head connected to the top of the tool bar.

[0003] The Chinese invention with publication number CN218785521U provides an F-type wrench with adjustable clamping width, the F-type wrench includes a handle, one side of the handle is fixedly installed with a threaded rod; an adjustment component, the adjustment component is arranged on one side of the second clamping plate, and is used to adjust the width between the first clamping plate and the second clamping plate, and the fixed pipe, the connecting plate, the fixing groove, the mounting column, the second spring, the fixing plate and the clamping hole cooperate with each other, so that the fixed pipe can be moved to the outside of the clamping hole, and the second clamping plate can be moved to a suitable position by the nut, the threaded rod and the second clamping plate cooperate with each other, and the fixed pipe, the second spring, the movable block, the mounting column and the second spring cooperate with each other, so that the fixed pipe enters the inside of the clamping hole to support the second clamping plate, thereby completing the adjustment of the width between the second clamping plate and the first clamping plate, and achieving the effect of adjusting the width between the first clamping plate and the second clamping plate. However, the width adjustment between the clamping plates of the F-type wrench can only be adjusted manually, and the adjustment method and speed are limited.

[0004] Therefore, the present invention proposes an electrically powered F clamp to solve the above-mentioned problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an electrically powered F clamp, which can electrically adjust the width of the clamp body and can also adjust the width of the clamp body by electricity, thereby improving the adjustment speed.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: an electrically powered F clamp, including a tool rod and a tool head, the end of the tool rod has a square head for connecting the tool head, and its innovation lies in: the tool head includes a fixed pliers body and a movable pliers body, one side of the movable pliers body has a first clamping plate, and the other side is movably connected to the fixed pliers body, one side of the fixed pliers body has a second clamping plate, and the other side is rotatably installed with a square head sleeve, the square head of the tool rod is inserted in the square head sleeve, and the movable pliers body is driven to move linearly through a gear assembly, so that the first clamping plate is close to or away from the second clamping plate.

[0007] Further, the gear assembly includes a limit cover plate, a first bevel gear, a second bevel gear, a plane bearing and a nut; The fixed caliper body is provided with a stepped hole for mounting the gear assembly, the stepped hole comprising a first stepped surface, a second stepped surface, a third stepped surface, a fourth stepped surface and a fifth stepped surface, the inner diameters of which decrease in sequence; The movable clamp body has an external thread section on one side away from the first clamping plate, the external thread section is inserted into the step hole, the nut thread is sleeved on the outside of the external thread section, and the outer wall of the nut is in contact with the fifth step surface; The plane bearing is sleeved on the outside of the nut, the inner circle of the first plane washer of the plane bearing is tightly connected to the outer wall of the nut, and the outer circle of the second plane washer of the plane bearing is tightly connected to the fourth step surface; The second bevel gear is arranged at the third step surface, the second bevel gear is sleeved on the outside of the nut, a plurality of first key bodies are arranged on the inner wall of the second bevel gear, a first key groove corresponding to each first key body is opened on the outer wall of the nut, and the first key body is arranged in the corresponding first key groove; A sleeve mounting hole is opened on the second step surface in the radial direction, the square sleeve is rotatably mounted in the sleeve mounting hole, the first bevel gear is integrally formed at the end of the square sleeve, and the first bevel gear is meshed and connected with the second bevel gear; The limit cover plate is installed in the first step surface, and the limit cover plate is sleeved on the outside of the external thread section. The inner wall of the limit cover plate is provided with a plurality of second key bodies, and the external thread section is provided with second key grooves corresponding to each second key body, and the second key bodies are arranged in the corresponding second key grooves.

[0008] Furthermore, a retaining ring is sleeved on the nut, a retaining ring groove is opened on the outer side wall of the nut, the retaining ring is installed in the retaining ring groove, and the end face of the retaining ring is in contact with the outer side wall of the fixed caliper body.

[0009] Furthermore, the square head sleeve is detachably connected to the fixed caliper body via a T-shaped connector, the T-shaped connector is movably inserted into the sleeve mounting hole, and is detachably connected to the fixed caliper body via bolts, a sleeve assembly hole is provided on the T-shaped connector, the square head sleeve is movably inserted into the sleeve assembly hole, and the first bevel gear is limited in the step hole by the T-shaped connector.

[0010] Furthermore, a universal ball seat is provided on one side of the fixed clamp body close to the first clamp plate, a ball groove is provided on the second clamp plate, and the universal ball seat is movably clamped in the ball groove.

[0011] Furthermore, the tool rod is an electric tool rod, and the square head at the end of the tool rod is electrically driven to rotate.

[0012] Furthermore, the tool rod is a manual tool rod, and the square head is hinged to the tool rod.

[0013] Furthermore, a spring locating pin is installed on the side wall of the square head, and a slot for inserting the square head is opened on the end face of the square head sleeve away from the first bevel gear. A plurality of locating grooves for the spring locating pin to enter are opened on the side wall of the slot. The square head is movably inserted in the slot, and the spring locating pin enters the locating groove at the corresponding position.

[0014] The advantages of the present invention are: The tool head of the present invention drives the square head sleeve to rotate through the tool rod, and the square head sleeve drives the movable pliers body to move linearly through the gear assembly, so as to adjust the distance between the two clamping plates. The tool rod can be a manual tool rod, and the square head of the tool rod is inserted into the square head sleeve. The tool rod is rotated to drive the square head sleeve to rotate. It can also be an electric tool rod, and the square head of the tool rod is electrically driven to rotate, thereby driving the square head sleeve to rotate, thereby realizing electric and manual dual adjustment methods, and the adjustment is convenient and the adjustment speed is fast.

[0015] The gear assembly of the present invention utilizes the first bevel gear integrally formed with the square head sleeve to drive the second bevel gear to rotate, and the second bevel gear utilizes the first key body to push the nut to rotate, and the nut pushes the external thread section to move linearly through the thread, and the external thread section is limited by the second key body of the limiting cover plate during the linear movement process to avoid rotation with the nut. The transmission structure is simple and not easy to be damaged. In addition, by opening a step hole on the fixed clamp body, the installation and assembly of various components of the gear assembly are convenient.

[0016] The nut of the present invention utilizes a retaining spring for axial limitation, thereby preventing the nut from axial movement and improving structural stability.

[0017] The square head sleeve of the present invention is detachably connected to the fixed caliper body through a T-shaped connecting piece, so that the installation and replacement of the square head sleeve are convenient.

[0018] The second clamping plate of the present invention is connected to the fixed clamp body through a universal ball seat. When the tool head clamps an object, the angle of the second clamping plate can be automatically changed according to the shape of the clamped object, thereby improving the clamping effect.

[0019] The tool rod of the present invention is an electric tool rod, and the square head at the end of the tool rod is electrically driven to rotate, so the adjustment speed is fast, the efficiency is high, and time and labor are saved.

[0020] The tool rod of the present invention is an electric tool rod. The square head at the end of the tool rod is electrically driven to rotate. When the square head is connected to the square head sleeve, the tool rod can be rotated so that the center axis of the tool rod is perpendicular to the center axis of the square head, thereby extending the lever arm and saving more effort when manually pushing the tool rod to rotate.

[0021] When the square head of the present invention is connected with the square head sleeve, the spring positioning pin and the positioning groove are used to restrict the square head in the square head sleeve, thereby preventing the two from being accidentally separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Figure 1 It is a schematic structural diagram of the electrically powered F clamp of the present invention.

[0024] Figure 2 It is a cross-sectional view of the electrically powered F clamp of the present invention.

[0025] Figure 3 It is a cross-sectional view taken along line BB of the present invention.

[0026] Figure 4 It is a cross-sectional view taken along CC of the present invention. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0028] Example like Figure 1-4 As shown, this embodiment provides an electrically powered F clamp, comprising a tool rod and a tool head, wherein the end of the tool rod has a square head for connecting to the tool head.

[0029] The tool head includes a fixed jaw body 2 and a movable jaw body 1. The movable jaw body 1 is an L-shaped rod structure. One side of the movable jaw body 1 has an integrally formed first clamping plate 11, and the side of the movable jaw body 1 away from the first clamping plate 11 has an external thread section 12. The external thread section 12 is movably connected to the fixed jaw body 2. One side of the fixed jaw body 2 has a second clamping plate 21, and the other side is rotatably mounted with a square head sleeve 29. The square head of the tool rod is inserted in the square head sleeve 29, and the gear assembly drives the movable jaw body 1 to move linearly, so that the first clamping plate 11 is close to or away from the second clamping plate 21.

[0030] In this embodiment, the gear assembly includes a limit cover plate 23, a first bevel gear 24, a second bevel gear 25, a plane bearing 26 and a nut 27. A step hole for mounting the gear assembly is provided on the fixed caliper body 2, and the step hole includes a first step surface 201, a second step surface 202, a third step surface 203, a fourth step surface 204 and a fifth step surface 205, the inner diameters of which decrease in sequence. The external thread section 12 is inserted into the step hole, and the nut 27 is threadedly sleeved on the outer side of the external thread section 12, and the outer wall of the nut 27 is fitted with the fifth step surface 205. A retaining ring 28 is mounted on the nut 27, and a retaining ring groove is provided on the outer side wall of the nut 27. The retaining ring 28 is installed in the retaining ring groove, and the end face of the retaining ring 28 is fitted with the outer side wall of the fixed caliper body 2.

[0031] The plane bearing 26 is sleeved on the outside of the nut 27. The plane bearing 26 includes a sphere and a first plane washer and a second plane washer arranged on both sides of the sphere. The inner circle of the first plane washer of the plane bearing 26 is tightly connected to the outer wall of the nut 27, and the outer circle of the second plane washer of the plane bearing 26 is tightly connected to the fourth step surface 204. The second bevel gear 25 is arranged at the third step surface 203. The second bevel gear 25 is sleeved on the outside of the nut 27. Four first key bodies 251 are arranged on the inner wall of the second bevel gear 25. The outer wall of the nut 27 is provided with first key grooves corresponding to each first key body 251. The first key body 251 is arranged in the corresponding first key groove.

[0032] A sleeve mounting hole is opened on the second step surface 202 along the radial direction, and the square head sleeve 29 is rotatably installed in the sleeve mounting hole and is detachably connected to the fixed caliper body 2 through a T-shaped connecting piece 210. The T-shaped connecting piece 210 is movably inserted in the sleeve mounting hole and is detachably connected to the fixed caliper body 2 through bolts. A sleeve assembly hole is opened on the T-shaped connecting piece 210, and the square head sleeve 29 is movably inserted into the sleeve assembly hole. The first bevel gear 24 is integrally formed at the end of the square head sleeve 29, and the end face of the first bevel gear 24 is fitted with the end face of the T-shaped connecting piece 210, and is limited in the step hole by the T-shaped connecting piece 210. The first bevel gear 24 is meshed and connected with the second bevel gear 25. The limit cover plate 23 is installed in the first step surface 201, and the limit cover plate 23 is sleeved on the outside of the external thread section 12. The inner wall of the limit cover plate 23 has two symmetrically arranged second key bodies 231. The external thread section 12 has second key grooves 13 corresponding to each second key body 231, and the second key body 231 is arranged in the corresponding second key groove 13.

[0033] In this embodiment, a universal ball seat 22 is provided on one side of the fixed clamp body 2 near the first clamping plate 11, and a ball groove is provided on the second clamping plate 21, and the universal ball seat 22 is movably engaged in the ball groove. When the tool head clamps an object, the second clamping plate 21 can change its angle according to the shape of the clamped object to improve the clamping effect.

[0034] In this embodiment, the tool rod can be an electric tool rod, and the square head at the end of the tool rod is electrically driven to rotate. For example, a motor is installed in the tool rod, and the output section of the motor is connected to the square head to drive the square head to rotate. This electric drive method has fast adjustment speed, high efficiency, and saves time and effort. The tool rod can also be a manual tool rod, and the square head is hinged to the tool rod. When the square head is connected to the square head sleeve 29, the tool rod can be rotated so that the central axis of the tool rod is perpendicular to the central axis of the square head, thereby extending the lever arm, which is more labor-saving when the tool rod is manually pushed to rotate.

[0035] In this embodiment, a spring locating pin is installed on the side wall of the square head, and a spring installation groove is opened on the side wall of the square head. The spring locating pin is movably arranged in the spring installation groove. A spring is arranged in the spring installation groove, and the two ends of the spring are respectively connected to the spring locating pin and the bottom surface of the spring installation groove; a slot 291 for inserting the square head is opened on the end surface of the square head sleeve 29 away from the first bevel gear 24, and four positioning grooves 292 for the spring locating pin to enter are opened on the side wall of the slot 291. The square head is movably inserted in the slot, and the spring locating pin enters the positioning groove 292 at the corresponding position. When the square head is connected to the square head sleeve, the spring locating pin and the positioning groove can be used to restrict the square head in the square head sleeve to prevent the two from accidentally disengaging.

[0036] The tool head drives the square head sleeve 29 to rotate through the tool rod, and the first bevel gear 24 integrally formed with the square head sleeve 29 rotates synchronously, and drives the second bevel gear 25 to rotate. The second bevel gear 25 uses the first key body 251 to push the nut 27 to rotate, and the nut 27 pushes the movable pliers body 1 to move linearly through the thread. The movable pliers body 1 is limited by the second key body 231 of the limiting cover plate 23 during the linear movement process to avoid rotation with the nut. The first clamp plate moves synchronously with the movable pliers body 1, thereby adjusting the distance between the first clamp plate 11 and the second clamp plate 21.

[0037] The F clamp of the present invention has both electric and manual adjustment modes, and is easy to adjust and has a fast adjustment speed.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electrically powered F-clamp, comprising a tool rod and a tool head, wherein the end of the tool rod has a square head for connecting the tool head, characterized in that: The tool head includes a fixed pliers body and a movable pliers body. The movable pliers body has a first clamping plate on one side and is movably connected to the fixed pliers body on the other side. The fixed pliers body has a second clamping plate on one side and a square head sleeve is rotatably installed on the other side. The square head of the tool rod is inserted in the square head sleeve, and the movable pliers body is driven to move linearly through the gear assembly, so that the first clamping plate is close to or away from the second clamping plate.

2. The electrically powered F clamp according to claim 1, characterized in that: The gear assembly includes a limiting cover plate, a first bevel gear, a second bevel gear, a plane bearing and a nut; The fixed caliper body is provided with a stepped hole for mounting the gear assembly, the stepped hole comprising a first stepped surface, a second stepped surface, a third stepped surface, a fourth stepped surface and a fifth stepped surface, the inner diameters of which decrease in sequence; The movable clamp body has an external thread section on one side away from the first clamping plate, the external thread section is inserted into the step hole, the nut thread is sleeved on the outside of the external thread section, and the outer wall of the nut is in contact with the fifth step surface; The plane bearing is sleeved on the outside of the nut, the inner circle of the first plane washer of the plane bearing is tightly connected to the outer wall of the nut, and the outer circle of the second plane washer of the plane bearing is tightly connected to the fourth step surface; The second bevel gear is arranged at the third step surface, the second bevel gear is sleeved on the outside of the nut, a plurality of first key bodies are arranged on the inner wall of the second bevel gear, a first key groove corresponding to each first key body is opened on the outer wall of the nut, and the first key body is arranged in the corresponding first key groove; A sleeve mounting hole is opened on the second step surface in the radial direction, the square sleeve is rotatably mounted in the sleeve mounting hole, the first bevel gear is integrally formed at the end of the square sleeve, and the first bevel gear is meshed and connected with the second bevel gear; The limit cover plate is installed in the first step surface, and the limit cover plate is sleeved on the outside of the external thread section. The inner wall of the limit cover plate is provided with a plurality of second key bodies, and the external thread section is provided with second key grooves corresponding to each second key body, and the second key bodies are arranged in the corresponding second key grooves.

3. The electrically powered F clamp according to claim 2, characterized in that: A retaining ring is sleeved on the nut, a retaining ring groove is opened on the outer side wall of the nut, the retaining ring is installed in the retaining ring groove, and the end face of the retaining ring is in contact with the outer side wall of the fixed caliper body.

4. The electrically powered F clamp according to claim 2, characterized in that: The square head sleeve is detachably connected to the fixed caliper body through a T-shaped connector, the T-shaped connector is movably inserted in the sleeve mounting hole, and is detachably connected to the fixed caliper body through a bolt, a sleeve assembly hole is opened on the T-shaped connector, the square head sleeve is movably inserted in the sleeve assembly hole, and the first bevel gear is limited in the step hole by the T-shaped connector.

5. The electrically powered F clamp according to claim 1, characterized in that: A universal ball seat is arranged on one side of the fixed clamp body close to the first clamp plate, a ball groove is arranged on the second clamp plate, and the universal ball seat is movably clamped in the ball groove.

6. The electrically powered F clamp according to claim 1, characterized in that: The tool rod is an electric tool rod, and the square head at the end of the tool rod is electrically driven to rotate.

7. The electrically powered F clamp according to claim 1, characterized in that: The tool rod is a manual tool rod, and the square head is hinged to the tool rod.

8. The electrically powered F clamp according to claim 1, characterized in that: A spring locating pin is installed on the side wall of the square head, and a slot for inserting the square head is opened on the end face of the square head sleeve away from the first bevel gear. A plurality of locating grooves for the spring locating pin to enter are opened on the side wall of the slot. The square head is movably inserted in the slot, and the spring locating pin enters the locating groove at the corresponding position.

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