CN216966502U - Finishing machine tool and finishing fixture - Google Patents

Abstract

The utility model discloses a finish machining machine tool and a finish machining fixer, wherein the finish machining machine tool comprises a finish machining fixer and a machining mechanism, the finish machining fixer comprises a fixed block and a movable block which are arranged oppositely, supporting steps are formed on opposite side surfaces of the fixed block and the movable block, the step surfaces of the two supporting steps are equal in height and keep a distance, a limiting groove is formed on two upper side surfaces of the two step surfaces which are connected with the two supporting steps, the movable block is connected with a clamping mechanism which drives the movable block to translate so as to adjust the distance between the movable block and the fixed block, a positioning plate is arranged at one end of the fixed block and/or the movable block, a through hole is formed in the positioning plate, a dial indicator is movably arranged on the positioning plate, and a measuring rod of the dial indicator extends along the length direction of the limiting groove and can extend into the limiting groove from the outside of the positioning plate through the through hole. The scheme can effectively avoid the probability of upwarp during workpiece clamping, can quickly position the workpiece on the fixed block, and can also measure the position precision of the workpiece through the dial indicator so as to ensure the processing precision.

Description

Finishing machine tool and finishing fixture

Technical Field

The utility model relates to the field of finish machining equipment, in particular to a finish machining machine tool and a finish machining fixer.

Background

In the machining of precision parts, the positional accuracy of a workpiece is a key factor that affects the machining accuracy.

When a workpiece with a cuboid outline is precisely machined by a machine tool, the conventional workpiece fixing structure is as shown in the attached drawing 1, a workpiece is clamped and fixed by matching an L-shaped block 10 and a cuboid block 20, the length of the workpiece is equal to that of the workpiece, when the workpiece is fixed, the workpiece 40 is firstly placed on the L-shaped block, and then the clamping fixing mechanism 30 drives the cuboid block 20 to move towards the workpiece on the L-shaped block 10 and apply pressure to the side face of the workpiece to realize clamping.

In the fixing structure, when the workpiece is placed on the L-shaped block, two ends of the workpiece are flush with two ends of the L-shaped block, and the requirement is difficult to quickly and accurately meet when the workpiece is placed manually; in addition, after the workpiece is machined, the workpiece is inconvenient to take down from the L-shaped block manually.

Meanwhile, when the cuboid block body clamps a workpiece, the workpiece is easy to tilt (namely, at least partial area of the bottom of the workpiece is separated from the supporting surface of the L-shaped block), so that the position error of the workpiece is caused, and the processing precision of a processing mechanism in a machine tool is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solve the above problems of the prior art and to provide a finishing machine tool and a finishing fixture.

The purpose of the utility model is realized by the following technical scheme:

finishing machine, including finish machining fixer and be used for carrying out the processing agency of processing to the work piece on the finish machining fixer, the finish machining fixer is including relative fixed block and the movable block that sets up, the side department that fixed block and movable block are relative is formed with the support step, and equal height and keep the interval such as two step faces that support the step, and two step faces and two that they link up go up the side and form a spacing groove, its relative fixed block translation of drive is connected to the movable block in order to adjust the fixture of interval between them, the one end of fixed block and/or movable block is provided with the locating plate, locating plate department is provided with a perforation and the activity of locating plate department is provided with the amesdial, the measuring staff of amesdial is followed the length direction of spacing groove extends and can by the outside warp of locating plate the perforation extends to in the spacing groove.

Preferably, in the finishing machine, the tool holder of the machining mechanism is a hydraulic tool holder.

Preferably, in the finishing machine, the clamping mechanism is an air cylinder, and the air cylinder is started and stopped through manual control.

Preferably, in the finishing machine, the dial indicator includes a reference seat, the reference seat has a plane parallel to the outer end surface of the positioning plate, the plane is perpendicular to the measuring rod of the dial indicator, and when the plane is attached to the outer end surface of the positioning plate, the measuring rod extends into the limiting groove.

Preferably, in the finishing machine, but the top rotation of locating plate and/or fixed block and/or movable block is provided with the pivot, be provided with the collet in the pivot, the pivot is rotatable to be made the collet is located the top of spacing groove and exert the overdraft to the work piece of spacing inslot.

Preferably, in the finishing machine, the rotating shaft is a limiting rotating shaft.

Preferably, in the finishing machine, the compactor is a spring plunger.

Preferably, in the finishing machine, the pressing device includes a sleeve, an elastic pin is disposed in the sleeve in a manner of moving along an axial direction of the sleeve, two ends of the elastic pin extend out of the sleeve, a spring is sleeved on the outer periphery of the elastic pin, the spring is limited in the sleeve, a slot corresponding to the elastic pin is formed on the top surface of the positioning plate and/or the fixed block and/or the movable block where the rotating shaft is located, and the elastic pin can extend into the slot in a normal state of the spring.

Finish machining fixer, including relative fixed block and the movable block that sets up, the side department that fixed block and movable block are relative is formed with the support step, and equal height and keep the interval such as two step faces that support the step, and two step faces form a spacing groove with two of their linking up on the side, its relative fixed block translation of drive is connected to the movable block in order to adjust the fixture of interval between them, the one end of fixed block and/or movable block is provided with the locating plate, locating plate department is provided with a perforation and the activity of locating plate department is provided with the amesdial, the measuring staff of amesdial is followed the length direction of spacing groove extends and can by the outside warp of locating plate the perforation extends to in the spacing groove.

The technical scheme of the utility model has the advantages that:

this scheme forms the support step respectively through the opposite side that makes movable block and fixed block and carries out the support of work piece, the probability of the perk takes place when can avoiding the work piece centre gripping effectively, the staff snatchs the work piece when the interval between movable block and the fixed block makes things convenient for artifical unloading, the unloading of being convenient for, and set up the end plate and can carry out the location of work piece on the fixed block fast, combine the perforation and swing joint's of end plate department setting amesdial, can confirm the precision of work piece fixed position through the amesdial after the work piece is fixed effectively, thereby guarantee the fixed position precision of work piece in order to guarantee the machining precision.

This scheme adopts the hydraulic pressure handle of a knife can have better cutter centre gripping precision to be favorable to improving the machining precision.

The dial indicator of this scheme has the reference base, has the plane that matches with the locating plate on the reference base, can realize the location of dial indicator fast effectively, can realize measuring high-efficiently, accurately.

This scheme through setting up pivot and collet, can be when the work piece centre gripping, exert the holding down force to the work piece constantly to effectively prevent that the problem of perk from appearing in the work piece, be favorable to further guaranteeing the precision of work piece centre gripping, be favorable to reducing the frequency of adjustment, with improvement machining efficiency.

Drawings

FIG. 1 is a schematic diagram of the prior art described in the background;

FIG. 2 is a schematic view of the machine tool of the present invention;

FIG. 3 is an end view of the finishing fixture of the machine tool of the present invention;

FIG. 4 is a top view of the finishing fixture of the machine tool of the present invention;

FIG. 5 is a top view of a workpiece placed on a finishing fixture of the machine tool of the present invention (the workpiece is not clamped);

fig. 6 is a partial sectional view of a dial gauge of a finish machining fixture of the utility model;

FIG. 7 is a cross-sectional view of a second embodiment of a finishing fixture of the machine tool of the present invention;

FIG. 8 is a schematic view of a second embodiment of a finishing fixture with a workpiece placed thereon (workpiece not clamped);

FIG. 9 is a schematic view of a second embodiment finishing fixture with a workpiece clamped thereto;

FIG. 10 is an enlarged view of area A of FIG. 7;

fig. 11 is a schematic view of the second embodiment of the finisher retainer with the presser not pressing the workpiece.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Example 1

The finishing machine of the present disclosure is described below with reference to the accompanying drawings, and as shown in fig. 2, includes a finishing fixture 100 and a machining mechanism 200 for machining a workpiece on the finishing fixture 100.

As shown in fig. 3 and fig. 4, the finishing fixture comprises a fixed block 1 and a movable block 2 which are oppositely arranged, the movable block 2 is connected with a clamping mechanism 3 which drives the movable block to translate relative to the fixed block 1 so as to adjust the distance between the movable block and the fixed block, supporting steps 4 are formed on the opposite side surfaces of the fixed block 1 and the movable block 2, the step surfaces 41 of the two supporting steps 4 are equal in height and keep a distance, the two step surfaces 41 and the two upper side surfaces 42 connected with the two step surfaces 41 enclose to form a limiting groove 5, one end of the fixed block 1 and/or the movable block 2 is provided with a positioning plate 6 vertical to the length direction of the fixed block and/or the movable block, a through hole 61 is arranged at the positioning plate 6, a dial indicator 7 is movably arranged at the positioning plate 6, the measuring rod of the dial indicator 7 extends along the length direction of the limiting groove 5 (the length direction of the fixed block and the movable block) and can extend into the limiting groove 5 from the outside of the positioning plate through the through hole 61.

The machine tool may be a known machine tool structure, which generally includes a machine body, a machining mechanism, a machining table, and the like provided in the machine body, and may specifically be a structure as disclosed in prior patents such as application numbers 201821745626.5, 201821427465.5, 201520781422.7. The machining mechanism in the machine tool can adopt a known structure in the patent and generally comprises a moving mechanism, a main shaft, a tool shank, a tool magazine, a tool changing mechanism and the like, wherein the moving mechanism drives the main shaft to move X, Y, Z shafts, the tool shank is coaxially arranged on the main shaft and is driven to rotate, the tool shank is used for installing a machining tool, and the tool shank is a hydraulic tool shank in order to ensure the machining precision. The magazine stores various types of machining tools, such as cutting tools, drilling tools, and the like. The tool changing mechanism is used for changing different tools in the tool magazine to the tool shank for machining. The specific structure of each mechanism is known technology, which is not an innovative point of the scheme, and is not described herein again. Meanwhile, the tool magazine and the tool changing mechanism are not necessary and can be omitted.

As shown in fig. 2 and fig. 3, the fixed block 1 and the movable block 2 cooperate to clamp a workpiece, they are disposed on a processing table 300 in a machine tool, the fixed block 1 is disposed on the processing table in a fixed position, the movable block 2 is connected to the clamping mechanism 3 along a direction perpendicular to the length direction thereof, the clamping mechanism 3 is a known device capable of moving linearly, such as an air cylinder, a linear motor, or a hydraulic cylinder, preferably, the clamping mechanism 3 is an air cylinder, more preferably, a sliding table air cylinder, the air cylinder is started or stopped by manual control, the manual control can be performed by a control button (not shown in the figure), and the specific control structure and control principle are known in the art. The cylinder is less influenced by the cooling liquid in machining compared with an electric structure, and the stability is better.

The width of the step face of the movable block 2 and the fixed block 1 can be designed according to the size of a workpiece, so that the workpiece can be effectively supported, interference is avoided when the two step faces are clamped, the movable block 2 and the fixed block 1 are enabled to be in clamping with the workpiece, and the two clamping faces still keep a certain first distance, so that the clamping mechanism 3 is enabled to keep a larger second distance between the movable block 2 and the fixed block 1 before clamping, but the second distance is smaller than the width of the workpiece, so that the two step faces can support the workpiece, and at the moment, the workpiece can be placed into the opening at one end of the limiting groove 5 to be two on the step faces.

As shown in fig. 4 and 5, the positioning plate 6 is used to limit the position of the workpiece 40 in the limiting groove 5, and when the workpiece is inserted inward from one end of the limiting groove 5 until the workpiece abuts against the positioning plate 6 at the other end of the limiting groove 5, the workpiece is positioned quickly. When a workpiece is placed on the movable block 2 and the fixed block 1, the measuring rod 75 of the dial indicator 7 can be synchronously inserted into the through hole 61 of the positioning plate 6, and the numerical value of the dial indicator 7 is read when the workpiece is in contact with the positioning plate 6 so as to determine whether the position of the workpiece meets the requirement.

After the workpiece is clamped and fixed through the fixed block 1 and the movable block 2, the measuring rod 75 of the dial indicator can be inserted into the through hole 61 of the positioning plate 6, whether the clamping position of the workpiece is accurate or not is determined according to the reading of the dial indicator 7, when the clamping position is inaccurate, the workpiece needs to be loosened, clamping is carried out again after adjustment, and testing is carried out until the reading of the dial indicator 7 meets the requirement.

As shown in fig. 6, in order to facilitate the rapid use of the dial indicator 7 to achieve accurate measurement, the dial indicator 71 is adaptively configured on the basis of a conventional dial indicator 71, even if the dial indicator 7 includes a reference seat 72, a measuring head 73 of the dial indicator 71 is coaxially inserted into a central hole 74 of the reference seat 72, and meanwhile, a measuring rod 75 abutting against the measuring head 73 is disposed in the reference seat 72, the measuring rod 75 extends out of the reference seat 72, so that the measuring head 73 is pushed by the measuring rod 75, the dial indicator can display corresponding length data, and the measuring rod 75 is a measuring rod. The reference base 72 has a plane 76 parallel to the outer end face of the positioning plate 6, the plane 76 is perpendicular to the measuring rod of the dial indicator 7, and when the plane 76 is attached to the outer end face of the positioning plate 6, the measuring rod extends into the limiting groove 5, that is, the inner end of the measuring rod 75 extends into the inner side of the positioning plate.

Example 2

This embodiment is further on embodiment 1 the top of locating plate 6 and/or fixed block 1 and/or movable block 2 can be provided with the pivot 8 of rotation on the basis of the embodiment 1, as shown in fig. 7-fig. 9 the top of movable block sets up be provided with presser 9 on the pivot 8, pivot 8 is rotatable to be made presser 9 is located the top of spacing groove 5 and exerts the overdraft to the work piece in the spacing groove 5. Such design can prevent effectively fixed block 1 and movable block 2 are at the centre gripping during the work piece, thereby exert the problem that the perk appears because the vibration to the top of work piece is avoided to the top, position accuracy when having guaranteed the work piece centre gripping effectively.

As shown in fig. 7, the rotating shaft 8 may be fixed on the movable block, the fixed block, or the positioning plate through a bearing, as shown in fig. 10, the pressing device 9 includes a sleeve 91, an elastic pin 92 is disposed in the sleeve 91 in an axially movable manner, two ends of the elastic pin 92 extend out of the sleeve 91, a spring 93 is sleeved on an outer periphery of the elastic pin 92, the spring 93 is limited in the sleeve 91, a slot corresponding to the elastic pin 92 is formed on a top surface of the positioning plate 6 and/or the fixed block 1 and/or the movable block 2 where the rotating shaft 8 is located, and the spring 93 normally allows the elastic pin 92 to extend into the slot 01. At this moment, a complex structure of the limiting rotating shaft 8 is not needed, after the workpiece is clamped and fixed, the rotating shaft 8 can be rotated to enable the pressing device 9 to rotate to the outer side of the limiting groove 5 and be embedded into the slot 01, as shown in the attached drawing 11, so that the rotating shaft 8 is prevented from rotating randomly during machining, and the structure is simple, easy to implement and better in stability.

Example 3

This embodiment is similar to the structure of embodiment 2, except that: in this embodiment, the rotating shaft 8 is preferably a limiting rotating shaft, the specific structure of the limiting rotating shaft may be as shown in application No. 201210200344.8, or may be a structure similar to a connecting shaft of a display screen portion and a host casing portion of a notebook computer, at this time, the presser 9 may be a spring plunger, and of course, the dial indicator 7 may also be used. Preferably, the height of the supporting step 4 is equal to the thickness of the workpiece, so that the top surface of the workpiece on the step surface is flush with the top surfaces of the movable block 2 and the fixed block 1, and the rotating shaft 8 can rotate conveniently.

The utility model has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the utility model.

Claims (9)

1. Finishing machine tool, including finish machining fixer and be used for carrying out the processing agency of processing to the work piece on the finish machining fixer, the finish machining fixer is including relative fixed block and the movable block that sets up, its relative fixed block translation of drive is connected to the movable block in order to adjust the fixture of interval between them, its characterized in that: the side department that fixed block and movable block are relative is formed with the support step, and equal height just keeps the interval for the step face of two support steps, and two step faces form a spacing groove with two of their linking up on the side, the one end of fixed block and/or movable block is provided with the locating plate, locating plate department is provided with a perforation and locating plate department activity is provided with the amesdial, the measuring staff of amesdial follows the length direction of spacing groove extends and can by the outside warp of locating plate the perforation extends to in the spacing groove.

2. The finishing machine of claim 1, wherein: the knife handle of the processing mechanism is a hydraulic knife handle.

3. The finishing machine of claim 1, wherein: the clamping mechanism is an air cylinder, and the air cylinder is started and stopped through manual control.

4. The finishing machine of claim 1, wherein: the dial indicator comprises a reference seat, the reference seat is provided with a plane parallel to the outer end face of the positioning plate, the plane is perpendicular to the measuring rod of the dial indicator, and when the plane is attached to the outer end face of the positioning plate, the measuring rod extends into the limiting groove.

5. The finishing machine according to any one of claims 1 to 4, wherein: but the top rotation of locating plate and/or fixed block and/or movable block is provided with the pivot, be provided with the collet in the pivot, the rotatable messenger of pivot the collet is located the top of spacing groove and exert the overdraft to the work piece of spacing inslot.

6. The finishing machine of claim 5, wherein: the rotating shaft is a limiting rotating shaft.

7. The finishing machine of claim 6, wherein: the compactor is a spring plunger.

8. The finishing machine of claim 5, wherein: the pressing device comprises a sleeve, an elastic pin is arranged in the sleeve in a movable mode along the axial direction of the sleeve, two ends of the elastic pin extend out of the sleeve, a spring is sleeved on the periphery of the elastic pin, the spring is limited in the sleeve, a slot corresponding to the elastic pin in position is formed in the top surface of the positioning plate and/or the fixed block and/or the movable block where the rotating shaft is located, and the elastic pin can extend into the slot in a normal state of the spring.

9. Finish machining fixer, including relative fixed block and the movable block that sets up, the relative side department of fixed block and movable block is formed with the support step, and equal height just keeps the interval with the step face of two support steps, and two side forms a spacing groove on two step faces and their two that link up, its relative fixed block translation of drive is connected to the movable block in order to adjust the fixture of interval between them, its characterized in that: one end of the fixed block and/or the movable block is provided with a positioning plate, a through hole is formed in the positioning plate, a dial indicator is movably arranged at the positioning plate, and a measuring rod of the dial indicator extends along the length direction of the limiting groove and can extend into the limiting groove from the outside of the positioning plate through the through hole.

Images