CN207170988U - Adjustable multifunctional hydraulic fixture of numerical control lathe - Google Patents

Abstract

The utility model discloses an adjustable multifunctional hydraulic fixture for a numerically controlled lathe, which comprises a rotary oil cylinder pull rod, a fixed seat, a fixed hole, a connecting column, a spring, a movable disc body, a fixed shaft, a limit block, an adjustment block, and a push rod , screws, adjusting threaded holes, kits, outer expansion sleeves, jacking springs, inner expansion sleeves, outer cones, movable cones, inner cones, shafts and movable seats; the utility model has the advantages of reasonable and simple structure and low production cost. , Easy to install, here first fix the fixed seat to the spindle of the CNC lathe through the fixing hole, and then connect the rotating oil cylinder pull rod in the spindle with the center of the movable disc body, the movable cone set here, when the movable cone moves to the left, can The outer expansion sleeve and the inner expansion sleeve are used to tighten and clamp the thin-walled sleeve and shaft parts respectively, and the additional limit block can limit the position of the movable cone moving to the left, which also ensures that the card The clamping strength of the tool improves the quality and precision of workpiece processing.

Description

An adjustable multifunctional hydraulic jig for a CNC lathe

Technical field:

The utility model relates to the field of machining equipment, in particular to an adjustable multifunctional hydraulic fixture for a numerical control lathe.

Background technique:

Fixtures are also called chucks, which are an important part of lathes and are used to fix workpieces for processing; in the past, fixtures on CNC lathes were mostly claw-type, and there are also hydraulic types, while the fixtures of CNC lathes are high-speed rotating , the design requirements for the fixture are high, such as the fixture should be light and reliable, and the dynamic balance should be good; the traditional CNC lathe fixture adopts manual mechanical fixture, which is inconvenient for clamping. The dimensional accuracy fluctuates in a large range, resulting in poor part size consistency, and the labor intensity of loading and unloading is high, the time is long, and the processing efficiency is low. Especially when clamping some thin-walled parts, the scrap rate of parts increases due to poor control of the clamping force. In addition, the parts to be clamped are relatively simple.

Utility model content:

The purpose of this utility model is to provide an adjustable multi-function hydraulic fixture for CNC lathes in order to solve the above problems, which solves the problem that the existing hydraulic fixture clamps some thin-walled parts. Due to the poor control of the clamping force, the parts The scrap rate has increased, and the parts to be clamped are relatively simple.

In order to solve the above problems, the utility model provides a technical solution: an adjustable multifunctional hydraulic fixture for a CNC lathe, including a rotary cylinder pull rod, and its innovative point is that it also includes a fixing seat, a fixing hole, a connecting column, a spring , movable disc body, fixed shaft, limit block, adjustment block, ejector rod, screw, adjustment threaded hole, kit, outer expansion sleeve, top tension spring, inner expansion sleeve, outer cone, movable cone, inner cone, Shaft and movable seat; the left and right sides of the movable disk body are movably connected inside the left center of the fixed seat, and the threaded hole in the center of the movable disk body is connected with the external thread on the right side of the pull rod of the rotating cylinder; there are multiple fixed holes, and the fixed holes are evenly arranged in the fixed Outside the seat; the left side of the fixed shaft is fixedly connected to the center of the right side of the fixed seat, and the right end surface of the fixed shaft is connected to the center of the left side of the inner expansion sleeve; the movable seat is located on the left side of the inner expansion sleeve, and the left and right sides of the movable seat are flexibly connected to the right side, the outer side of the left side of the movable seat is uniformly fixedly connected with a plurality of connecting columns; the left ends of the connecting columns are respectively fixedly connected with the outer side of the right side of the movable disc body, and the right side of the connecting column is movably connected with a spring; the right side of the spring is connected with the movable The left side of the seat is connected, and the left side of the spring is connected with the right side of the fixed seat; the movable cone is movably connected to the outside of the inner expansion sleeve, the left end of the movable cone is fixedly connected with the right side of the movable seat, and the right side of the movable cone is provided with an outer Cone surface, the inside of the right side of the movable cone is provided with an inner cone surface; the outer expansion sleeve is located outside the movable cone, the left end of the outer expansion sleeve is fixedly connected to the right side of the fixed seat, and the right side of the outer expansion sleeve is connected to the outer cone surface; the inner expansion sleeve The outside of the right side of the sleeve is connected with the inner tapered surface; the set is located outside the outer expansion sleeve; the shaft is located inside the inner expansion sleeve; the adjustment screw hole is set inside the upper right side of the fixing seat, and a screw is movably connected in the adjustment screw hole; the bottom of the screw passes through the ejector rod It is connected with the top surface of the adjustment block; the lower side of the adjustment block is connected with the left side of the limit block; Equipped with top tension spring.

Preferably, a slope is provided on the lower side of the adjustment block, and matches with the slope on the left side of the limit block.

Preferably, a positioning groove is provided on the left side of the fixing seat, and the left end of the outer expansion sleeve is fixed in the positioning groove.

Preferably, the screw is a hexagon socket set screw with flat end.

Preferably, the size of the outer tapered surface of the movable cone is set from small to large from left to right.

Preferably, the left end of the movable cone is provided with a movable cone connecting part, the right side of the movable seat is provided with a movable seat positioning groove, and the movable cone connecting part is arranged in the movable seat positioning groove.

Preferably, an arc transition portion is provided between the connecting portion of the movable cone and the outer tapered surface of the movable cone.

Preferably, an inner expansion ring is provided on the right side of the inner expansion sleeve, and the length of the inner expansion ring is larger than that of the inner tapered surface.

Preferably, the inner surface of the inner expansion ring is a hollow cylinder structure, and the end of the inner surface of the inner expansion ring is provided with an arc surface structure.

Preferably, the length dimension of the outer expansion sleeve is greater than the length dimension of the movable cone.

Beneficial effects of the utility model: the utility model has the advantages of reasonable and simple structure, low production cost, convenient installation, and complete functions. Here, firstly, the fixing seat is fixed on the spindle of the CNC lathe through the fixing hole, and then the pull rod of the rotating oil cylinder in the spindle is connected to the movable disk. The center of the body is fixedly connected. The movable cone set here, when the movable cone moves to the left, can respectively tighten and clamp the thin-walled sleeve and the shaft parts through the outer expansion sleeve and the inner expansion sleeve, thereby improving the The practicability of this fixture, and inserting the shaft into the inner expansion sleeve when processing thin-walled parts, can effectively improve the fact that the fixture will not be deformed inward when it is tightened, and when processing shaft parts, the set is inserted outside The expansion sleeve can effectively prevent the clamp from deforming to the outside when it is clamped, thereby improving the stability and reliability of the card when it is used. In addition, the limit block can limit the position of the movable cone moving to the left. It also ensures the clamping force of the fixture, thereby improving the quality and precision of workpiece processing.

Description of drawings:

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a partially enlarged view of the utility model.

1-fixed seat; 2-fixed hole; 3-connecting column; 4-spring; 5-rotary cylinder rod; 6-movable disc body; 7-fixed shaft; Rod; 11-screw; 12-adjusting threaded hole; 13-kit; 14-outer expansion sleeve; 15-top tension spring; 16-inner expansion sleeve; 17-outer cone surface; Surface; 20-shaft; 21-movable seat.

Detailed ways:

As shown in Figures 1 and 2, this specific embodiment adopts the following technical solutions: an adjustable multifunctional hydraulic fixture for a CNC lathe, including a rotary cylinder pull rod 5, and also includes a fixing seat 1, a fixing hole 2, and a connecting column 3 , spring 4, movable disc body 6, fixed shaft 7, limit block 8, adjustment block 9, ejector rod 10, screw 11, adjustment threaded hole 12, kit 13, outer expansion sleeve 14, jacking spring 15, inner expansion sleeve 16. Outer cone 17, movable cone 18, inner cone 19, shaft 20 and movable seat 21; the left and right sides of the movable disk body 6 are movably connected inside the center of the left side of the fixed seat 1, and the threaded hole in the center of the movable disk body 6 is connected with the rotating The external thread on the right side of the pull rod 5 of the oil cylinder is connected; there are multiple fixing holes 2, which can be selected according to the actual situation. The fixing holes 2 are evenly arranged on the outside of the fixing seat 1; , the right end surface of the fixed shaft 7 is connected to the center of the left side of the inner expansion sleeve 16; the movable seat 21 is located on the left side of the inner expansion sleeve 16, and the left and right sides of the movable seat 21 are movably connected to the upper right side of the fixed shaft 7, and the left side of the movable seat 21 is outside A plurality of connecting posts 3 are uniformly fixedly connected, which can be selected according to the actual situation; the left ends of the connecting posts 3 are respectively fixedly connected with the outer side of the right side of the movable disk body 6, and the right side of the connecting post 3 is movably connected with a spring 4; The sides are all connected with the left side of the movable seat 21, and the left side of the spring 4 is connected with the right side of the fixed seat 1; The outside of the side is fixedly connected, the outside of the right side of the movable cone 18 is provided with an outer cone 17, and the inside of the right side of the movable cone 18 is provided with an inner cone 19; the outer expansion sleeve 14 is located on the outside of the movable cone 18, and the left end of the outer expansion sleeve 14 is fixed. Connected to the right side of the fixed seat 1, the inside of the right side of the outer expansion sleeve 14 is connected with the outer cone surface 17; the outside of the right side of the inner expansion sleeve 16 is connected with the inner cone surface 19; the sleeve 13 is located outside the outer expansion sleeve 14; the shaft 20 is located in the inner Inside the expansion sleeve 16; the adjustment threaded hole 12 is located at the inside of the upper right side of the fixed seat 1, and the screw 11 is movably connected in the adjustment threaded hole 12; the bottom of the screw 11 is connected with the top surface of the adjustment block 9 through the push rod 10; the lower side of the adjustment block 9 is connected with Limiting block 8 left sides are connected; Limiting block 8 is movably connected on the upper inside of fixed seat 1 right side, and is provided with top tight spring 15 between the groove on the right side of limiting block 8 and movable seat 21 upper left side groove.

Among them, the lower side of the adjustment block 9 is provided with a slope, which matches the slope on the left side of the limit block 8; the left side of the fixed seat 1 is provided with a positioning groove, and the left end of the outer expansion sleeve is fixed in the positioning groove; screw; the size of the outer cone surface of the movable cone is set from small to large gradually from left to right; the left end of the movable cone is provided with a movable cone connecting part, and the right side of the movable seat is provided with a movable seat positioning groove, and the movable cone The connecting part is set in the positioning groove of the movable seat; there is an arc surface transition part between the connecting part of the movable cone and the outer cone surface of the movable cone; the right side of the inner expansion sleeve is provided with an inner expansion collar, and the inner expansion collar The length dimension is greater than the length dimension of the inner cone surface; the inner surface of the inner expansion ring is a hollow cylinder structure, and the end of the inner surface of the inner expansion ring is provided with an arc surface structure; the length dimension of the outer expansion sleeve is larger than the movable cone length dimension.

The usage status of the utility model is: the utility model has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions. When in use, the fixing seat 1 is first fixed on the spindle of the CNC lathe through the fixing hole 2, and then the spindle is rotated The cylinder pull rod 5 is fixedly connected to the center of the movable disc body 6, and the movable cone 18 provided here, when the movable cone 18 moves to the left, can respectively align the thin-walled sets and shaft parts through the outer expansion sleeve 14 and the inner expansion sleeve 16 Tightening and clamping are carried out, thereby improving the practicability of this clamp, and inserting the shaft member 20 into the inner expansion sleeve 16 when processing a thin-walled set, can effectively improve this clamp. deformation, and when processing shaft parts, insert the sleeve 13 on the outer expansion sleeve 14, which can effectively improve the clamping clamp without deformation to the outside, thereby improving the stability and reliability of the clamp when it is used. The limit block 8 can limit the position of the movable cone 18 moving to the left, which ensures the clamping force of the fixture, thereby improving the quality and precision of workpiece processing.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and description are only illustrations The principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection. The desired protection is defined by the appended claims and their equivalents.

Claims (10)

1. a kind of adjustable multifunction hydraulic fixture of numerically controlled lathe, including rotary oil cylinder pull bar, it is characterised in that：Also include solid Reservation, fixing hole, connecting pole, spring, movable disk body, fixing axle, limited block, regulating block, push rod, screw, regulation screwed hole, set Part, outer expansion sleeve, hold out against spring, interior expansion sleeve, male cone (strobilus masculinus), activity cone, inner conical surface, shaft member and sliding seat；

Movable disk body or so is movably connected in inside fixed seat Left-side center, movable disk body screwed hole of centre and rotary oil cylinder pull bar Right side external screw thread is connected；

Fixing hole is multiple, and fixing hole is uniformly located on the outside of fixed seat respectively；

Fixed seat right center is fixedly connected on the left of fixing axle, fixing axle right side is connected with interior expansion sleeve left surface center Connect；

For retractable seat on the left of the interior expansion sleeve, sliding seat or so is movably connected in fixing axle upper right, outside sliding seat left surface Side is uniformly fixedly connected with multiple connecting poles；Connecting pole left end on the outside of movable disk body right flank respectively with being fixedly connected, connecting pole Upper right is connected with spring；Spring right flank is connected with sliding seat left surface, and spring left surface is and fixed seat Right flank is connected；

Activity cone is flexibly connected outside interior expansion sleeve, and activity cone left end is fixedly connected with sliding seat right hand external, activity Cone right hand external is provided with male cone (strobilus masculinus), and inside is provided with inner conical surface on the right side of activity cone；

Outer expansion sleeve is located on the outside of activity cone, and outer expansion sleeve left end is fixedly connected on the right side of fixed seat, in outer expansion sleeve right side Portion is connected with male cone (strobilus masculinus)；Interior expansion sleeve right hand external is connected with inner conical surface；External member is located at outside outer expansion sleeve；Shaft member is positioned at interior swollen Inside expansion set；Regulation screwed hole is located inside fixed seat upper right side, is adjusted in screwed hole and is connected with screw；Screw bottom leads to Push rod is crossed with regulating block top surface to be connected；Regulating block downside is connected with limited block left surface；Limited block or so is movably connected in solid Upper inner on the right side of reservation, it is provided between limited block right groove and sliding seat upper left side groove and holds out against spring.

A kind of 2. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：On the downside of regulating block Provided with inclined-plane, and with limited block on the left of slopes which match.

A kind of 3. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：On the left of fixed seat Provided with locating slot, outer expansion sleeve left end is fixed in locating slot.

A kind of 4. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：Screw is interior six Angle flush end holding screw.

A kind of 5. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：Activity cone Male cone (strobilus masculinus) size is by small gradually big setting from left to right.

A kind of 6. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：Activity cone Left end is provided with activity cone connecting portion, and the right side of sliding seat is provided with sliding seat detent, and activity cone connecting portion is arranged at work In dynamic seat detent.

A kind of 7. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 6, it is characterised in that：Activity cone connects Cambered surface transition part is provided between the male cone (strobilus masculinus) of socket part and activity cone.

A kind of 8. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：Interior expansion sleeve Right side is provided with interior expansion lasso, and the length dimension of interior expansion lasso is more than the length dimension of inner conical surface.

A kind of 9. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 8, it is characterised in that：Interior expansion lasso Medial surface be hollow circular cylinder structure, the end of medial surface of interior expansion lasso is provided with globoidal structure.

A kind of 10. adjustable multifunction hydraulic fixture of numerically controlled lathe according to claim 1, it is characterised in that：Outer expansion sleeve Length dimension be more than activity cone length dimension.