Positioning device for fastener machining

Abstract

The utility model relates to the technical field of fastener processing and positioning, and discloses a positioning device for fastener processing, which comprises a supporting leg, a variable-pitch clamping mechanism is arranged on the upper side of the supporting leg, a centering mechanism is arranged on the upper side of the variable-pitch clamping mechanism, a clamp assembly comprises a fixed disc, the fixed disc is fixedly connected to the upper surface of the supporting leg, and a clamping mechanism is arranged on the fixed disc. A sliding groove is formed in the upper surface of the fixing disc, a chip removal opening is formed in the outer side of the fixing disc, a rotating disc is rotationally connected to the inner side of the fixing disc, a multilateral groove is formed in the upper surface of the rotating disc, a sliding column is slidably connected into the sliding groove, a sliding block is slidably connected into the multilateral groove, and the variable-pitch clamping mechanism is used for clamping a fixing part. And the centering mechanism is used for clamping a long workpiece to be machined, the workpiece is prevented from being bent due to the fact that the torque of the workpiece is too large, and especially internal thread machining is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener processing and positioning, in particular to a positioning device for fastener processing. Background Art

[0002] Fasteners are mechanical parts used to connect two or more components and provide a locking function. They are typically connected through threads, pins, rivets, and other methods to ensure the relative position and stability of the components. They are widely used in various mechanical equipment, building structures, electronic equipment, and other fields. Common types include bolts, nuts, screws, washers, pins, and rivets. Different types of fasteners are suitable for different connection methods and application scenarios. The main function of positioning devices used in processing is to clamp and secure the workpiece to prevent it from moving or deforming during processing.

[0003] When processing a long workpiece, although one end of the workpiece is clamped, the longer the workpiece, the greater the torque, which can easily cause deformation of the workpiece. At the same time, it can cause the thread line to twist during tapping, affecting the quality of the workpiece. Utility Model Content

[0004] The purpose of the present utility model is to provide a positioning device for fastener processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a positioning device for fastener processing, comprising a support leg, a variable-pitch clamping mechanism provided on the upper side of the support leg, and a centering mechanism provided on the upper side of the variable-pitch clamping mechanism;

[0006] The variable-distance clamping mechanism includes a clamp assembly and a drive assembly, and the drive assembly is arranged outside the clamp assembly;

[0007] The centering mechanism includes a pitch changing assembly, a centering assembly and a control assembly, wherein the pitch changing assembly is arranged on the upper side of the clamp assembly, the centering assembly is arranged on the inner side of the pitch changing assembly, and the pitch changing assembly is arranged on the outer side of the centering assembly;

[0008] The clamp assembly includes a fixed plate, which is fixedly connected to the upper surface of the support leg, a sliding groove is provided on the upper surface of the fixed plate, a chip removal port is provided on the outer side of the fixed plate, a turntable is rotatably connected to the inner side of the fixed plate, a polygonal groove is provided on the upper surface of the turntable, a sliding column is slidably connected inside the sliding groove, a slider is slidably connected inside the polygonal groove, and a splint is fixedly connected between the sliding column and the slider.

[0009] Preferably, an annular notch is provided inside the fixing disk, and a plurality of openings are provided on the upper side of the fixing disk.

[0010] Preferably, the driving assembly includes a fixed block, which is fixedly connected to the outside of the fixed disk, a fixed rod is fixedly connected to one side of the turntable, a screw rod is rotatably connected inside the fixed block, a traction block is threadedly connected to the screw rod, the traction block is slidably connected to the inner wall of the fixed block, and a drag sleeve is fixedly connected to the lower surface of the traction block.

[0011] Preferably, a distance is left between the traction block and the fixing rod.

[0012] Preferably, the pitch-changing assembly includes a rotating sleeve, which is fixedly connected to the upper surface of the fixed disk, and a rotating column and a screw are rotatably connected inside the rotating sleeve.

[0013] Preferably, the centering assembly includes a chassis, which is slidably connected to the outer wall of the rotating column and threadedly connected to the outer wall of the screw, the chassis is rotatably connected to a support plate inside, a sliding opening is opened inside the support plate, the upper surface of the support plate is fixedly connected to a swivel seat, the upper end of the swivel seat is rotatably connected to a clamping rod, the clamping rod is slidably connected to the inside of the sliding opening, the inner side of the clamping rod is rotatably connected to a clamping wheel, the outer wall of the clamping rod is slidably connected to a slide cylinder, the slide cylinder is slidably connected to the inside of the support plate, the upper surface of the slide cylinder is fixedly connected to a limiting block, and the limiting block is rotatably connected to the support plate.

[0014] Preferably, the control component includes a traction cylinder and a concave block, the traction cylinder is fixedly connected to one side of the support plate, a threaded column is rotatably connected inside the traction cylinder, the threaded column is threadedly connected to a suspension platform, the suspension platform is slidably connected inside the traction cylinder, an insertion rod is fixedly connected to the lower surface of the suspension platform, the concave block is fixedly connected to the upper surface of the chassis, and the insertion rod is slidably connected inside the concave block.

[0015] Compared with the prior art, the present invention provides a positioning device for fastener processing, which has the following beneficial effects:

[0016] 1. The variable-pitch clamping mechanism is used to clamp fixings, especially for common hexagonal bolts, with perfect fit and adaptability to bolts of different sizes. Specifically, the driving assembly moves the splint to change the size of the hexagonal opening inside the splint, which can clamp the bolts tighter with a larger contact area.

[0017] 2. The centering mechanism is used to clamp longer workpieces to be processed to prevent the workpiece from bending due to excessive torque. It is especially convenient for internal thread processing and eliminates the need to adjust the position of the centering mechanism. The control component is used to clamp the workpiece, and the distance between the variable distance clamping mechanism and the centering mechanism can be changed through the variable distance component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the chute in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the plywood in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the chassis in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the support plate in the utility model.

[0024] Figure: 1. Support leg; 2. Variable pitch clamping mechanism; 21. Clamp assembly; 201. Fixed plate; 202. Slide; 203. Chip removal port; 204. Turntable; 205. Multi-sided groove; 206. Slide column; 207. Slider; 208. Clamp; 22. Drive assembly; 221. Fixed block; 222. Fixed rod; 223. Screw; 224. Pull block; 225. Drag sleeve; 3. Centering mechanism; 31 , pitch changing assembly; 301, rotating sleeve; 302, rotating column; 303, screw; 32, centering assembly; 321, chassis; 322, supporting plate; 323, sliding mouth; 324, swivel seat; 325, clamping rod; 326, clamping wheel; 327, slide cylinder; 328, limit block; 33, control assembly; 331, traction cylinder; 332, threaded column; 333, suspension platform; 334, insertion rod; 335, concave block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] Example 1:

[0028] See also Figure 1-5 The utility model provides a technical solution: a positioning device for fastener processing, comprising a support leg 1, a variable distance clamping mechanism 2 is provided on the upper side of the support leg 1, and a centering mechanism 3 is provided on the upper side of the variable distance clamping mechanism 2;

[0029] The variable-pitch clamping mechanism 2 includes a clamp assembly 21 and a drive assembly 22 , wherein the drive assembly 22 is arranged outside the clamp assembly 21 ;

[0030] The centering mechanism 3 includes a pitch changing assembly 31, a centering assembly 32 and a control assembly 33. The pitch changing assembly 31 is arranged on the upper side of the clamp assembly 21, the centering assembly 32 is arranged on the inner side of the pitch changing assembly 31, and the pitch changing assembly 31 is arranged on the outer side of the centering assembly 32.

[0031] The clamp assembly 21 includes a fixed plate 201, which is fixedly connected to the upper surface of the support leg 1. A slide groove 202 is provided on the upper surface of the fixed plate 201, and a chip discharge port 203 is provided on the outer side of the fixed plate 201. A turntable 204 is rotatably connected to the inner side of the fixed plate 201. A polygonal groove 205 is provided on the upper surface of the turntable 204. A slide column 206 is slidably connected inside the slide groove 202, and a slider 207 is slidably connected inside the polygonal groove 205. A splint 208 is fixedly connected between the slide column 206 and the slider 207. The traction block 224 is displaced by rotating the screw rod 223, and the traction block 224 drives the turntable 204 to rotate. The turntable 204 drives the splint 208 to slide through the slide groove 202 and the polygonal groove 205. After the splint 208 moves, the size of the opening inside the splint 208 changes, which is suitable for fasteners such as bolts of different sizes.

[0032] Furthermore, an annular notch is provided inside the fixing disk 201 , and a plurality of openings are provided on the upper side of the fixing disk 201 .

[0033] Furthermore, the driving assembly 22 includes a fixed block 221, which is fixedly connected to the outside of the fixed disk 201, and a fixed rod 222 is fixedly connected to one side of the turntable 204. The fixed block 221 is rotatably connected to a screw rod 223, and the screw rod 223 is threadedly connected to a traction block 224. The traction block 224 is slidably connected to the inner wall of the fixed block 221, and the lower surface of the traction block 224 is fixedly connected to a drag sleeve 225.

[0034] Furthermore, a distance is left between the pulling block 224 and the fixing rod 222 .

[0035] Example 2:

[0036] See also Figure 1-5 , and combined with Example 1, it is further obtained that the pitch variable assembly 31 includes a rotating sleeve 301, the rotating sleeve 301 is fixedly connected to the upper surface of the fixed disk 201, and the rotating sleeve 301 is rotatably connected to the rotating column 302 and the screw 303.

[0037] Furthermore, the centering assembly 32 includes a chassis 321, which is slidably connected to the outer wall of the rotating column 302 and threadedly connected to the outer wall of the screw rod 303. The chassis 321 is rotatably connected to the support plate 322 inside. A sliding opening 323 is opened inside the support plate 322. The upper surface of the support plate 322 is fixedly connected to a swivel seat 324. The upper end of the swivel seat 324 is rotatably connected to a clamping rod 325. The clamping rod 325 is slidably connected to the inside of the sliding opening 323. The inner side of the clamping rod 325 is rotatably connected to a clamping wheel 326. The outer wall of the clamping rod 325 is slidably connected to a slide cylinder 327. The slide cylinder 327 is slidably connected to the inside of the support plate 322. The upper surface of the slide cylinder 327 is fixedly connected to a limit block 328, and the limit block 328 is rotatably connected to the support plate 322.

[0038] The cam 335 is connected to the locking cam 336 by the spring 336, and the locking cam 337 is connected to the locking cam 338 by the spring 338.

[0039] During actual operation, when this device is used, the user places the fastener on the upper surface of the turntable 204, and then rotates the screw rod 223 to make the drag sleeve 225 drive the fixed rod 222 to move, so that the turntable 204 and the fixed plate 201 rotate relative to each other, and the clamping plate 208 is driven to clamp the fastener under the cooperation of the slide groove 202 and the polygonal groove 205. Then, the user rotates the screw rod 303 according to the length of the fastener so that the chassis 321 is at the other end of the fastener, and the user rotates the threaded column 332 to make the insertion rod 334 and the recessed block 335 conflict with each other, so that the support plate 322 rotates, and the support plate 322 drives the clamping rod 325 to clamp the other end of the fastener.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A positioning device for fastener processing, comprising a support leg (1), characterized in that: A variable distance clamping mechanism (2) is provided on the upper side of the support leg (1), and a centering mechanism (3) is provided on the upper side of the variable distance clamping mechanism (2); The variable-distance clamping mechanism (2) comprises a clamp assembly (21) and a drive assembly (22), wherein the drive assembly (22) is arranged outside the clamp assembly (21); The centering mechanism (3) comprises a pitch changing assembly (31), a centering assembly (32) and a control assembly (33); the pitch changing assembly (31) is arranged on the upper side of the clamp assembly (21); the centering assembly (32) is arranged on the inner side of the pitch changing assembly (31); and the pitch changing assembly (31) is arranged on the outer side of the centering assembly (32); The clamp assembly (21) includes a fixed disk (201), the fixed disk (201) is fixedly connected to the upper surface of the support leg (1), a slide groove (202) is provided on the upper surface of the fixed disk (201), a chip removal port (203) is provided on the outer side of the fixed disk (201), a turntable (204) is rotatably connected to the inner side of the fixed disk (201), a polygonal groove (205) is provided on the upper surface of the turntable (204), a slide column (206) is slidably connected inside the slide groove (202), a slider (207) is slidably connected inside the polygonal groove (205), and a clamping plate (208) is fixedly connected between the slide column (206) and the slider (207).

2. A positioning device for fastener processing according to claim 1, characterized in that: An annular notch is provided inside the fixing disk (201), and a plurality of openings are provided on the upper side of the fixing disk (201).

3. A positioning device for fastener processing according to claim 1, characterized in that: The driving assembly (22) comprises a fixed block (221), the fixed block (221) is fixedly connected to the outside of the fixed disk (201), a fixed rod (222) is fixedly connected to one side of the rotating disk (204), a screw rod (223) is rotatably connected inside the fixed block (221), a traction block (224) is threadedly connected on the screw rod (223), the traction block (224) is slidably connected to the inner wall of the fixed block (221), and a drag sleeve (225) is fixedly connected to the lower surface of the traction block (224).

4. A positioning device for fastener processing according to claim 3, characterized in that: A distance is left between the traction block (224) and the fixing rod (222).

5. The fastener processing positioning device according to claim 1, characterized in that: The pitch-changing assembly (31) comprises a rotating sleeve (301) fixedly connected to the upper surface of the fixed disk (201), and a rotating column (302) and a screw (303) are rotatably connected inside the rotating sleeve (301).

6. A positioning device for fastener processing according to claim 1, characterized in that: The centering assembly (32) includes a chassis (321), which is respectively slidably connected to the outer wall of the rotating column (302) and threadedly connected to the outer wall of the screw (303). A support plate (322) is rotatably connected inside the chassis (321), and a sliding opening (323) is provided inside the support plate (322). A rotating seat (324) is fixedly connected to the upper surface of the support plate (322), and a clamping rod is rotatably connected to the upper end of the rotating seat (324). (325), the clamping rod (325) is slidably connected to the inside of the sliding mouth (323), the inner side of the clamping rod (325) is rotatably connected to the clamping wheel (326), the outer wall of the clamping rod (325) is slidably connected to the slide cylinder (327), the slide cylinder (327) is slidably connected to the inside of the support plate (322), the upper surface of the slide cylinder (327) is fixedly connected to the limit block (328), and the limit block (328) is rotatably connected to the support plate (322).

7. The fastener processing positioning device according to claim 1, characterized in that: The control assembly (33) includes a traction cylinder (331) and a concave block (335). The traction cylinder (331) is fixedly connected to one side of the support plate (322). A threaded column (332) is rotatably connected inside the traction cylinder (331). The threaded column (332) is threadedly connected to a hanging platform (333). The hanging platform (333) is slidably connected inside the traction cylinder (331). A plug rod (334) is fixedly connected to the lower surface of the hanging platform (333). The concave block (335) is fixedly connected to the upper surface of the chassis (321). The plug rod (334) is slidably connected inside the concave block (335).

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