CN117415651A

CN117415651A - Milling machine fixture

Info

Publication number: CN117415651A
Application number: CN202311426557.7A
Authority: CN
Inventors: 杨燕玲
Original assignee: Dongguan Xinyi Machinery Co ltd
Current assignee: Dongguan Xinyi Machinery Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-01-19

Abstract

The invention belongs to the technical field of milling machine jigs, and discloses a milling machine jig which comprises a workbench, wherein rectangular notches are formed in the top ends of two sides of the workbench in a penetrating manner; according to the invention, the clamping ball arranged on the pull rod is clamped into the ball groove formed in the support plate by pulling the pull rod on the pull disc to limit, so that the clamping plate keeps the current moving position, the application range is increased, the universality is improved, meanwhile, the first spur gear rotates to drive the second spur gear connected above to synchronously rotate, the tooth bar is driven to rotate, the clamping plate is pushed to clamp and rotate under the action of the screw rod, when the workpiece is subjected to limit clamping and azimuth adjustment, the clamping can be easily completed by only rotating the rotating handle and pulling the pull disc, and the motor is started to rotate the clamped workpiece through the clamping column during the angle steering adjustment.

Description

Milling machine fixture

Technical Field

The invention belongs to the technical field of milling machine jigs, and particularly relates to a milling machine jig.

Background

The milling machine mainly refers to a machine tool for machining various surfaces of a workpiece by using a milling cutter, the milling cutter usually takes rotary motion as main motion, the movement of the workpiece and the milling cutter is feeding motion, the fixture refers to a device which is used for fixing a machining object in a mechanical manufacturing process to enable the machining object to occupy a correct position so as to receive construction or detection, and the fixture is also called a fixture in a broad sense, and the device used for rapidly, conveniently and safely installing the workpiece in any working procedure in the technical process can be called a fixture;

during operation of the milling machine, a workpiece is arranged on the workbench, namely, the workpiece is fixed through the clamp, but after the workpiece is fixed by the existing milling machine clamp, the workpiece cannot be rotated and adjusted, the machining position of the workpiece is adjusted, the workpiece is required to be disassembled manually and then clamped again, adjustment and machining are carried out, and the existing operation procedure is complex and not convenient enough.

Chinese patent with application number CN112692603a discloses a milling machine fixture, comprising a base and a positioning piece arranged on the base, wherein the positioning piece comprises: the fixed plate is fixed on the base; the movable plate is arranged on the base in a sliding manner; at least one guide rod with one end fixed to the fixed plate and the other end penetrating the moving plate; the spring is sleeved on the guide rod; the driving piece is connected with the movable plate so as to enable the movable plate to slide on the base along the guide rod; and the support column is arranged on the base in a sliding manner and is positioned between the fixed plate and the movable plate. Solves the problem that the existing clamp has single use object. According to the milling machine fixture, the distance between the movable plate and the fixed plate is adjusted through sliding of the movable plate, so that the milling machine fixture is suitable for processing requirements of end covers with different diameters, the application range is increased, and the universality is improved.

However, after the workpiece is fixed by the existing milling machine fixture, the workpiece can not be rotated and adjusted, the machining position of the workpiece is adjusted, the workpiece is required to be disassembled manually and then clamped again, adjustment and machining are performed, the operation procedure is complicated, and the milling machine fixture is not convenient enough, so that the problems in the background technology are solved.

Disclosure of Invention

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a milling machine fixture, includes the workstation, all link up on the both sides top of workstation and seted up the rectangle notch, still include:

the clamping parts are symmetrically distributed on the workbench, each clamping part comprises a clamping plate, a limiting guide structure and a clamping stretching structure are arranged on the outer wall of one end of each clamping plate, a first meshing structure is arranged on each clamping stretching structure, and an adjusting part is installed inside the workbench in a penetrating mode.

The clamping plate is provided with a plurality of groups of sliding grooves from top to bottom, each group of sliding grooves is connected with two sliding plates in an up-down sliding mode, a pushing plate is fixed between the two sliding plates, one end of each sliding plate corresponding to each sliding groove is fixed with a rotating seat, two clamping columns are connected between the rotating seats in a rotating mode, the upper ends of the clamping columns are fixedly connected with belt wheels III through rotating rods, and the rotating rods penetrate through the rotating seats.

The air cylinder is fixedly installed at the outer side of the clamping plate at the position corresponding to the push plate, the air cylinder is installed in the clamping plate, compression springs are installed inside the air cylinder, a piston rod is connected in the air cylinder in a sealing sliding mode, the end portion of the piston rod is fixedly connected with the piston rod corresponding to each push plate, an air inlet hole is formed in the side face of the bottom of the air cylinder, a pipeline is connected to the outer side of the air inlet hole, the air cylinder in the clamping plate is connected with the air pump through the pipeline, a fixing plate is fixedly installed on the clamping plate, a motor and the air pump are respectively installed on the fixing plate, a plurality of pulleys are further installed on the upper portion of the clamping plate, a pulley IV is installed at the end portion of the motor, and the pulley IV is connected with a plurality of groups of pulleys II, a pulley III and pulleys through belts.

Preferably, the adjusting part is located in the workbench, the adjusting part comprises a rotating handle, a rotating shaft is connected to the rotating handle, and a spur gear I is connected to the rotating shaft.

Preferably, the limit guide structure is composed of a telescopic rod, two ends of the telescopic rod are fixedly connected with the clamping plate and the outer wall of one end of the supporting plate respectively, and the bottom end of the supporting plate is fixedly connected with the outer wall of the top end of the workbench.

Preferably, the clamping and stretching structure is composed of a pull rod, a clamping ball, a pull disc and a first ball groove formed in the outer wall of one end of the support plate, the pull rod and the support plate are movably sleeved, the pull rod and the clamping ball are fixedly connected, the clamping ball and the first ball groove can be tightly clamped, two ends of the pull rod are respectively fixedly connected with a second spur gear and the pull disc, the pull disc and the support plate can be tightly attached, the clamping and stretching structure further comprises a tooth rod and a screw rod, the screw rod is connected with the inner thread of the tooth rod, the inner wall and the outer wall of the tooth rod and the inner wall of the support plate are in through rotation connection, one end of the screw rod is respectively in rotation connection with one end of the support plate and one end of the workbench, and the other end of the screw rod is fixedly connected with a clamping plate.

Preferably, the first engagement structure is composed of a first spur gear and a second spur gear in engagement with the toothed bar, and the second spur gear is in engagement with the toothed bar.

Preferably, the clamping plate is fixedly connected to the screw rod and the telescopic rod, the telescopic rod is fixedly connected with the outer wall of one end of the support plate, and the support plate is fixedly connected to the upper end face of the workbench.

Preferably, a guide groove is formed in the upper portion of the clamping plate, a sliding block and a spring are installed in the guide groove, the installation position of the spring is sealed by a plug, and a belt pulley II is installed above the sliding block.

Preferably, a plurality of guide slots are formed in the upper portion of the clamping plate, a sliding block and a spring are respectively installed in each guide slot, the sliding block is attached to the end portion of the spring, the top of the sliding block is fixedly connected with the belt pulley II, plugs are respectively installed and fixed on the corresponding side surfaces of the clamping plate and the guide slots, and the plugs are attached to the spring.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, a workpiece is placed on a workbench, a rotating rod is driven to rotate through a manual rotation rotating handle, the rotating rod drives a spur gear I on the rotating rod and a spur gear II meshed with the spur gear I to synchronously rotate, so that a tooth rod meshed with the spur gear II is driven to rotate in a support plate, a screw rod in the tooth rod translates under the rotation of the tooth rod through the rotation of the tooth rod, the telescopic rod is driven to extend, a clamping plate connected to the screw rod is guided to translate, a clamping column at the front end of the clamping plate contacts and clamps the workpiece, the workpiece is further clamped under the action of a cylinder after the workpiece is tightly attached, the workpiece is prevented from loosening in the milling process, the clamping plate can clamp and fix workpieces with different sizes, and when the angle of the workpiece needs to be adjusted, a motor is started, and belt wheels of each group rotate under the action of the motor, so that the angle of the workpiece is driven to be adjusted.

According to the invention, the pull rod on the pull disc is pulled, so that the clamping ball arranged on the pull rod is clamped into the ball groove I formed in the support plate to limit, and the clamping plate keeps the current moving position, so that the application range is increased, the universality is improved, the limiting and reinforcing effects are achieved, the operation process is simple and quick, and the whole procedure is conveniently and safely completed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall split structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of a clamping part according to the present invention;

FIG. 4 is a schematic view of a part of the structure of a clamping part according to the present invention;

FIG. 5 is a schematic view of a part of the structure of a clamping part according to the present invention;

FIG. 6 is a schematic view of a clamping portion, a spacing guiding structure and a clamping and stretching structure according to the present invention;

FIG. 7 is a schematic view of a part of the adjusting part of the present invention;

FIG. 8 is a schematic view of a part of a clamping and stretching structure according to the present invention;

FIG. 9 is a schematic view of a first engagement structure according to the present invention;

FIG. 10 is a schematic view of a structure for clamping a circular workpiece according to the present invention;

FIG. 11 is a schematic view of the structure of the present invention for clamping an irregular workpiece;

fig. 12 is a schematic view of a rectangular clamping member according to the present invention.

In the figure:

1. a work table; 11. a rectangular notch; 2. a clamping part; 21. a clamping plate; 211. clamping the column; 212. a slide plate; 213. a push plate; 214. a rotating seat; 215. a rotating lever; 216. a chute; 22. an air pump; 221. a pipe; 23. a belt wheel; 231. a spring; 232. a guide groove; 233. a sliding block; 234. a plug; 235. a belt wheel II; 236. a belt wheel III; 237. a belt wheel IV; 24. a belt; 25. a motor; 251. a fixing plate; 26. a cylinder; 261. an air inlet hole; 262. a compression spring; 263. a piston rod; 3. an adjusting section; 31. a rotating handle; 32. a rotating shaft; 4. a limit guide structure; 41. a telescopic rod; 5. a clamping and stretching structure; 51. a support plate; 52. a first ball groove; 53. a pulling disc; 531. a spur gear II; 532. a pull rod; 533. ball clamping; 54. tooth bar; 541. a screw; 6. a first engagement structure; 61. straight gear one.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-3 and 6-9, a milling machine fixture includes a workbench 1, rectangular notches 11 are formed on top ends of two sides of the workbench 1 in a penetrating manner, and the milling machine fixture further includes:

the two clamping parts 2 are symmetrically distributed on the workbench 1, the clamping parts 2 comprise clamping plates 21, a limiting guide structure 4 and a clamping stretching structure 5 are arranged on the outer wall of one end of each clamping plate 21, a first meshing structure 6 is arranged on each clamping stretching structure 5, the first meshing structure 6 consists of a first spur gear 61 and a second spur gear 531 and a tooth bar 54 which are connected in a meshing manner, the second spur gear 531 and the tooth bar 54 are connected in a meshing manner, an adjusting part 3 is installed in the workbench 1 in a penetrating manner, the adjusting part 3 is located in the workbench 1, the adjusting part 3 comprises a rotating handle 31, a rotating shaft 32 is connected to the rotating handle 31, and a first spur gear is connected to the rotating shaft 32.

The limiting guide structure 4 is composed of a telescopic rod 41, two ends of the telescopic rod 41 are fixedly connected with the clamping plate 21 and one end outer wall of the supporting plate 51 respectively, the bottom end of the supporting plate 51 is fixedly connected with the top end outer wall of the workbench 1, a fixing plate 251 is fixedly installed on the clamping plate 21, a motor 25 and an air pump 22 are respectively installed on the fixing plate 251, a plurality of belt pulleys 23 are further installed on the upper portion of the clamping plate 21, a belt pulley four 237 is installed at the end portion of the motor 25, the belt pulley four 237 is connected with a plurality of belt pulleys two 235, a belt pulley three 236 and the belt pulley 23 through a belt 24, the clamping plate 21 is fixedly connected to the screw 541 and the telescopic rod 41, the telescopic rod 41 is fixedly connected with one end outer wall of the supporting plate 51, and the supporting plate 51 is fixedly connected to the upper end face of the workbench 1.

The clamping and stretching structure 5 is composed of a pull rod 532, a clamping ball 533, a pull disc 53 and a first ball groove 52 formed in the outer wall of one end of the support plate 51, the pull rod 532 and the support plate 51 are movably sleeved, the pull rod 532 and the clamping ball 533 are fixedly connected, the clamping ball 533 and the first ball groove 52 can be tightly clamped, two ends of the pull rod 532 are respectively and fixedly connected with a second spur gear 531 and the pull disc 53, the pull disc 53 and the support plate 51 can be tightly attached, the clamping and stretching structure 5 further comprises a tooth rod 54 and a screw 541, the screw 541 is connected with the inner thread of the tooth rod 54, the tooth rod 54 is in through rotation connection with the inner wall and the outer wall of the support plate 51, one end of the screw 541 is respectively and rotatably connected with one end of the support plate 51 and one end of the workbench 1, and the other end of the screw 541 is fixedly connected with the clamping plate 21.

Through placing the machined part on workstation 1, place the work piece on workstation 1 through the manual work, make manual operation adjustment portion 3, work at first meshing structure 6 under the effect of adjustment portion 3 to cooperate with joint stretching structure 5 and spacing guide structure 4, will make clamping part 2 carry out centre gripping or rotation to the work piece, specifically use as follows: in the use process, the workpiece is clamped, the rotating shaft 32 in the workbench 1 is driven to rotate through the rotation of the rotary handle 31, the first spur gear 61 is installed on the rotating shaft 32, power is transmitted to the clamping and stretching structure 5 through gear meshing, the clamping and stretching structure 5 drives the limiting and guiding structure 4 to guide, the clamping part 2 and the limiting and guiding structure 4 move to clamp the workpiece, the limiting and guiding structure 4 mainly plays the roles of limiting and guiding, the clamping part 21 is driven to clamp the workpiece under the action of the screw 541, the clamping part 21 moves along the expansion and contraction direction of the telescopic rod 41 under the action of the telescopic rod 41, the clamping part 21 is limited and guided, after the workpiece is clamped, the clamping ball 533 in the clamping and stretching structure 5 contacts with the first ball groove 52 in the support plate 51, so that the second spur gear 531 and the tooth bar 54 cannot rotate, the clamping part 2 is more stable, after the workpiece is clamped, the clamping post 211 firstly contacts with the workpiece can clamp the workpiece under the action of the push plate 213, the compression spring 262 in the cylinder 26 is mainly used for clamping the workpiece, the compression spring 262 in the cylinder 26 is driven by the compression post 262, the compression post 262 is further used for clamping the workpiece 26, the workpiece is clamped by the piston rod 22 under the action of the compression post 213, the piston rod is further clamped by the piston rod is clamped by the piston rod 52, the piston rod is further clamped under the action of the compression post is clamped by the piston rod 52, the piston rod is further clamped by the piston rod 52, the piston rod is continuously, the piston rod is clamped under the compression rod is deformed, the piston rod is further in the compression is clamped by the piston rod is further in the compression mode, the piston rod is clamped, the piston rod is compressed, the cylinder is compressed, preventing the tooth bar 54 from rotating and more strongly ensuring the clamping effect.

Example two

In the actual use process, some machining operations are complicated, the workpiece is sometimes required to be rotated manually, and the workpiece is sometimes required to be subjected to surface correction from a new workpiece after being rotated.

Referring to fig. 1-5, on the basis of the first embodiment, a plurality of groups of sliding grooves 216 are formed in the upper and lower sides of the clamping plate 21 in the first embodiment, each group of sliding grooves 216 is connected with two sliding plates 212 in an up-down sliding manner, a push plate 213 is fixed between the two sliding plates 212, a rotating seat 214 is fixed at one end of the sliding plate 212 opposite to the sliding grooves 216, a clamping column 211 is rotatably connected between the two rotating seats 214, a belt wheel three 236 is fixedly connected to the upper end of the clamping column 211 through a rotating rod 215, and the rotating rod 215 penetrates through the rotating seat 214.

The air cylinder 26 is fixedly mounted at the outer side of the clamping plate 21 at the position corresponding to each push plate 213, the air cylinder 26 is mounted in the clamping plate 21, the compression springs 262 are mounted in the air cylinder 26, a piston rod 263 is connected in a sealing sliding manner in the air cylinder 26, the end of the piston rod 263 is fixedly connected with each push plate 213 and the corresponding piston rod 263, an air inlet 261 is formed in the side face of the bottom of the air cylinder 26, a pipeline 221 is connected to the outer side of the air inlet 261, the air cylinder 26 in the clamping plate 21 is connected with the air pump 22 through the pipeline 221, a plurality of guide grooves 232 are formed in the upper portion of the clamping plate 21, sliding blocks 233 and springs 231 are mounted in the guide grooves 232, the sliding blocks 233 are attached to the end portions of the springs 231, the tops of the sliding blocks 233 are fixedly connected with pulleys II 235, plugs 234 are mounted and fixed on the sides, corresponding to the guide grooves 232, and the plugs 234 are attached to the springs 231.

When the workpiece is required to be rotated and adjusted in angle, the motor 25 arranged on the fixed plate 251 rotates the belt wheel four 237, the belt 24 is connected with the belt wheel two 235, the belt wheel three 236 and the belt wheel 23 under the action of the belt 24, the clamping column 211 arranged on the clamping plate 21 rotates under the action of the belt wheel three 236, the rotating rod 215 connected with the belt wheel three 236 rotates along with the rotating rod 215, the rotating rod 215 rotates together with the clamping column 211, in order to ensure the stability of the belt 24 and the reliability of the clamping column 211, the pressure of the cylinder 26 on the push plate 213 is larger than the pressure of the piston rod 263 on the motor 25 on the clamping plate 21 through the belt 24 during rotation, the belt 24 is always kept in a tensioned state through the spring 231 in the guide groove 232, the belt wheel three 236 on the sliding block 233 effectively works, the piston rod 263 on the cylinder 26 in the clamping plate 21 continuously clamps the workpiece through the push plate 212 connected with the belt, the air pump 22 continuously supplies air, the rotating force of the clamping column 211 on the workpiece is smaller than the ejection force of the piston rod 263, and the workpiece is effectively adjusted in angle.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a milling machine fixture, includes workstation (1), its characterized in that, rectangle notch (11) have all been offered in link up on the both sides top of workstation (1), still include:

the clamping parts (2) are symmetrically distributed on the workbench (1), each clamping part (2) comprises a clamping plate (21), a limiting guide structure (4) and a clamping stretching structure (5) are arranged on the outer wall of one end of each clamping plate (21), a first meshing structure (6) is arranged on each clamping stretching structure (5), and an adjusting part (3) is arranged inside the workbench (1) in a penetrating manner;

a plurality of groups of sliding grooves (216) are formed in the upper and lower sides of the clamping plate (21), two sliding plates (212) are connected to each group of sliding grooves (216) in an up-down sliding mode, a pushing plate (213) is fixed between the two sliding plates (212), a rotating seat (214) is fixed at one end of each sliding plate (212) corresponding to each sliding groove (216), a clamping column (211) is connected between the two rotating seats (214) in a rotating mode, three pulleys (236) are fixedly connected to the upper ends of the clamping columns (211) through rotating rods (215), the rotating rods (215) penetrate through the rotating seats (214), air cylinders (26) are fixedly installed at positions, corresponding to each pushing plate (213), of the outer sides of the clamping plate (21), the air cylinders (26) are installed in the clamping plate (21), compression springs (262) are installed inside the air cylinders (26), piston rods (263) are connected in a sealing sliding mode, the ends of the piston rods (263) are fixedly connected with the corresponding pushing plates (213), the side faces of the air cylinders (263) are fixedly connected with corresponding air inlets (261), the air cylinders (221) are connected to the air inlets (221) through the air cylinders (21), the clamping plate (21) is fixedly provided with a fixing plate (251), and the fixing plate (251) is respectively provided with a motor (25) and an air pump (22).

2. The milling machine fixture of claim 1, wherein: still include adjustment portion (3), adjustment portion (3) are located in workstation (1), adjustment portion (3) are including turning handle (31), be connected with pivot (32) on turning handle (31), be connected with straight gear (61) on pivot (32).

3. The milling machine fixture of claim 2, wherein: the limiting guide structure (4) is composed of a telescopic rod (41), two ends of the telescopic rod (41) are fixedly connected with the clamping plate (21) and the outer wall of one end of the supporting plate (51) respectively, and the bottom end of the supporting plate (51) is fixedly connected with the outer wall of the top end of the workbench (1).

4. A milling machine fixture as claimed in claim 3, wherein: the clamping and stretching structure (5) is composed of a pull rod (532), clamping balls (533), a pull disc (53) and a first ball groove (52) formed in the outer wall of one end of the support plate (51), the pull rod (532) is movably sleeved with the support plate (51), the pull rod (532) is fixedly connected with the clamping balls (533), the clamping balls (533) and the first ball groove (52) can be tightly clamped, two ends of the pull rod (532) are fixedly connected with a second spur gear (531) and the pull disc (53) respectively, and the pull disc (53) and the support plate (51) can be tightly attached.

5. The milling machine fixture of claim 4, wherein: the clamping and stretching structure (5) further comprises a tooth rod (54) and a screw rod (541), the screw rod (541) is connected with the tooth rod (54) through internal threads, the tooth rod (54) is connected with the inner wall and the outer wall of the support plate (51) through rotation, one end of the screw rod (541) is connected with the support plate (51) and one end of the workbench (1) through rotation, and the other end of the screw rod (541) is fixedly connected with the clamping plate (21).

6. The milling machine fixture of claim 1, wherein: the upper part of the clamping plate (21) is also provided with a plurality of belt pulleys (23), the end part of the motor (25) is provided with a belt pulley IV (237), and the belt pulley IV (237) is connected with a plurality of groups of belt pulleys II (235), belt pulleys III (236) and belt pulleys (23) through a belt (24).

7. The milling machine fixture of claim 1, wherein: the first meshing structure (6) consists of a first spur gear (61) and a second spur gear (531) which is connected with the tooth bar (54) in a meshing manner, and the second spur gear (531) is connected with the tooth bar (54) in a meshing manner.

8. The milling machine fixture of claim 5, wherein: the clamping plate (21) is fixedly connected to the screw rod (541) and the telescopic rod (41), the telescopic rod (41) is fixedly connected with the outer wall of one end of the supporting plate (51), and the supporting plate (51) is fixedly connected to the upper end face of the workbench (1).

9. The milling machine fixture of claim 6, wherein: guide slots (232) are formed in the upper portion of the clamping plate (21), sliding blocks (233) and springs (231) are arranged in the guide slots (232), the mounting positions of the springs (231) are sealed by plugs (234), and belt wheels II (235) are arranged above the sliding blocks (233).

10. The milling machine fixture of claim 7, wherein: a plurality of guide grooves (232) are formed in the upper portion of the clamping plate (21), sliding blocks (233) and springs (231) are respectively arranged in each guide groove (232), the sliding blocks (233) are attached to the ends of the springs (231), the tops of the sliding blocks (233) are fixedly connected with belt wheels II (235), plugs (234) are respectively arranged and fixed on the corresponding side faces of the clamping plate (21) and the guide grooves (232), and the plugs (234) are tightly attached to the springs (231).