CN214979468U

CN214979468U - Rotary clamping device

Info

Publication number: CN214979468U
Application number: CN202120811357.3U
Authority: CN
Inventors: 徐志坚; 徐建华; 梁勇; 张毅刚; 姜勇; 陈勇贵; 杜建龙
Original assignee: Zhejiang Foertai Intelligent Equipment Co ltd
Current assignee: Zhejiang Foertai Intelligent Equipment Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-03
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a press from both sides tight frock technical field is a rotary clamping device, including platform, actuating mechanism, rotation post and clamping component, rotate on the platform and install the rotation post, rotate the post upper end and be equipped with the draw-in groove that can positive and negative two-way transmission moment of torsion, be equipped with on the platform and make rotation post pivoted actuating mechanism, there is a plurality of clamping component along the central axis circumference interval distribution who rotates the post on the platform. The utility model has the advantages of reasonable and compact structure, through setting up like this, the lever piston rod upwards stretches out the back, and the chuck is close to the one end downstream of rotating the post, finally compresses tightly to install in the shaft-type universal joint of cross or the dish type part of rotating the post upper end, and install and need process a plurality of positions of circumference in the shaft-type universal joint of cross or the dish type part of rotating the post upper end, just need rotate the rotation post, clamping component can realize compressing tightly the work piece fast or loosen the work piece, improves production efficiency, has safety, laborsaving, simple and convenient, efficient characteristics.

Description

Rotary clamping device

Technical Field

The utility model relates to a press from both sides tight frock technical field, be a rotary clamping device.

Background

In the actual production process of the workpiece, in order to facilitate machining and ensure machining accuracy, the workpiece is sometimes clamped by a lever cylinder and then machined. The lever cylinder is generally provided with a cylinder barrel, a piston, a pressing plate and a connecting rod, the top of the piston is hinged to one end of the pressing plate, and the two ends of the connecting rod are hinged to the middle of the pressing plate and the cylinder barrel respectively, so that the cylinder barrel, the piston, the pressing plate and the connecting rod form a four-bar structure, the piston stretches out to push the pressing plate to compress a workpiece, and the piston retracts to drive the pressing plate to loosen the workpiece.

Along with the vigorous development of the technology of the machining center industry, the rising of the domestic professional clamp industry is correspondingly driven, the rapid development of the domestic automobile industry, the aerospace industry and other related finish machining industries has higher and higher requirements on the charge degree and the precision degree of parts and accessories produced in batches, and the domestic clamp industry has correspondingly rapid development on the requirements on the difficulty and the speed of machining the corresponding parts and accessories.

At present, in a machining or assembling process of a cross-shaft type universal joint or a disc part, the cross-shaft type universal joint or the disc part needs to be machined or assembled in multiple directions, and in the existing machining or assembling process, the cross-shaft type universal joint or the disc part needs to be transferred to multiple stations for machining or assembling, so that the positioning and transferring time is prolonged, the machining or assembling precision is reduced, and the economic benefit of an enterprise is directly reduced.

Disclosure of Invention

The utility model provides a rotary clamping device has overcome above-mentioned prior art not enough, and it can effectively solve the location that exists in the current cross axle type universal joint or disc class parts machining or assembly process and shift loaded down with trivial details and the poor stability problem of process.

The technical scheme of the utility model is realized through following measure: the utility model provides a rotary clamping device, which comprises a platform, actuating mechanism, rotation post and clamping component, it installs the rotation post to rotate on the platform, it is equipped with the draw-in groove that can positive and negative two-way transmission moment of torsion to rotate the post upper end, be equipped with on the platform and make rotation post pivoted actuating mechanism, it has a plurality of clamping component to follow the central axis circumference interval distribution of rotation post on the platform, clamping component includes the lever jar, the chuck, depression bar and backup pad, lever jar lower extreme and platform fixed mounting are in the same place, there is and stretches out the lever piston rod in the lever jar outside on the lever jar, lever piston rod upper end is connected with the one end of depression bar is articulated, the other end of depression bar is fixed with the chuck that the lower extreme is close to the rotation post upper end, the backup pad sets up between chuck and lever piston rod, the upper and lower both ends of backup pad correspond the position with depression bar and lever jar upside respectively and articulate and be connected.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the lower end surface of the chuck close to the rotating column can be a convex curved surface.

Above-mentioned platform central authorities can be equipped with the rotation hole that link up from top to bottom, rotate the post and include dabber and the inboard bearing frame of upper portion outside fixed mounting in rotation hole, dabber upper end demountable installation has the location fluted disc, the location fluted disc up end is located to the draw-in groove, location fluted disc upper end and chuck lower extreme are close to each other, the coaxial suit in the bearing frame in dabber upper portion outside, platform below fixed mounting has the fixing base, rotation actuating mechanism fixed mounting is on the fixing base, the dabber lower extreme passes behind the bearing frame and is in the same place with rotation actuating mechanism installation.

The rotary driving mechanism can comprise a fixed seat, a push-pull air cylinder and a rack, a gear is fixedly mounted at the lower end of the mandrel, the rack meshed with the gear is arranged on the fixed seat, the push-pull air cylinder is fixedly mounted on the fixed seat, and a push-pull piston rod which extends out of the outer side of the push-pull air cylinder and is fixedly mounted together with the end portion of the rack is arranged in the push-pull air cylinder.

The upper end face of the positioning fluted disc can be at least provided with two tooth areas, each tooth area is provided with a plurality of strip-shaped clamping grooves which are arranged in parallel at intervals, and an included angle can be formed between the strip-shaped clamping grooves of at least two tooth areas.

The utility model has the advantages of reasonable and compact structure, convenient to use, through setting up like this, the lever piston rod upwards stretches out the back, the chuck is close to the one end downstream of rotating the post, finally compress tightly and install in the shaft-type universal joint of cross or the dish type part of rotating the post upper end, and install in the shaft-type universal joint of cross or the dish type part of rotating the post upper end and need process a plurality of positions of circumference, just need rotate the post, clamping component can realize compressing tightly the work piece fast or loosen the work piece, and the production efficiency is improved, and the safety, laborsaving, simple and convenient, efficient characteristics have.

Drawings

Fig. 1 is a schematic sectional view of the preferred embodiment of the present invention.

Fig. 2 is a schematic top view of the preferred embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2.

Fig. 4 is a schematic three-dimensional structure of a positioning fluted disc in the preferred embodiment of the present invention.

The codes in the figures are respectively: the device comprises a platform 1, a lever cylinder 2, a chuck 3, a pressure rod 4, a mandrel 5, a bearing seat 6, a fixed seat 7, a gear 8, a rack 9, a push-pull cylinder 10, a push-pull piston rod 11, a positioning fluted disc 12, a supporting plate 13 and a clamping groove 14.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in fig. 1, 2, 3 and 4, the rotary clamping device comprises a platform 1, the platform comprises a driving mechanism, a rotating column and a clamping assembly, the rotating column is rotatably mounted on the platform 1, a clamping groove 14 capable of transmitting torque in a forward and reverse direction is formed in the upper end of the rotating column, the driving mechanism enabling the rotating column to rotate is arranged on the platform 1, a plurality of clamping assemblies are distributed on the platform 1 at intervals along the circumference of the central axis of the rotating column, each clamping assembly comprises a lever cylinder 2, a clamping head 3, a pressing rod 4 and a supporting plate 13, the lower end of each lever cylinder 2 is fixedly mounted with the platform 1, a lever piston rod extending out of the lever cylinder 2 is arranged on each lever cylinder 2, the upper end of each lever piston rod is hinged to one end of the corresponding pressing rod 4, the other end of each pressing rod 4 is fixed with the clamping head 3, the supporting plate 13 is arranged between the clamping heads 3 and the lever piston rods, and the upper and lower ends of the supporting plate 13 are hinged to the corresponding positions of the corresponding to the pressing rods 4 and the upper sides of the lever cylinders 2.

According to the demand, platform 1 is platelike structure, 1 downside fixed mounting of platform has the support frame, lever cylinder 2, current well-known work piece clamping system is constituteed to backup pad 13 and depression bar 4, be equipped with four clamping components on the platform 1, four two bisymmetry distributions of clamping components, backup pad 13 includes two risers that are located 4 bilateral symmetry distributions of depression bar respectively, when the lever piston rod withdraws downwards, chuck 3 can open completely under a plurality of hinge bar linkage, thereby be convenient for treat that to press from both sides tight work piece and can place smoothly in the rotation post upper end, later when the lever piston rod upwards stretches out, chuck 3 is close to the one end downside of rotation post and can supports treating to press from both sides tight work piece up end, thereby realize pressing from both sides tight operation. In the use, through setting up like this, the lever piston rod upwards stretches out the back, and chuck 3 is close to the one end downstream of rotating the post, finally compresses tightly to install in the cross axle type universal joint or the dish type part of rotating the post upper end, and installs and need process a plurality of positions of circumference in the cross axle type universal joint or the dish type part of rotating the post upper end, just need rotate the post, and clamping component can realize compressing tightly the work piece fast or loosen the work piece for the production beat, improvement production efficiency, the utility model discloses rational in infrastructure and compact, convenient to use has safety, laborsaving, simple and convenient, efficient characteristics.

The rotary clamping device can be further optimized or/and improved according to actual needs:

as shown in fig. 1 and 3, the lower end surface of the chuck 3 close to the rotating column is a convex curved surface.

According to requirements, the convex curved surface is a semi-cylindrical surface. In the use process, the chuck 3 can be J-shaped, the chuck 3 and the pressure rod 4 are integrally arranged, through the arrangement, the end faces of the cross-axle type universal joint or the disc type part in different shapes can be tightly pressed, the damage of the chuck 3 to the surface of the cross-axle type universal joint or the disc type part can be avoided, and the processing or assembling quality is improved.

As shown in the accompanying

drawings

1, 2 and 3, a rotation hole which is through from top to bottom is formed in the center of the platform 1, the rotation column comprises a mandrel 5 and a bearing seat 6 which is fixedly installed on the inner side of the rotation hole and on the outer side of the upper portion of the mandrel, a positioning fluted disc 12 is detachably installed on the upper end of the mandrel 5, a clamping groove 14 is formed in the upper end face of the positioning fluted disc 12, the outer side of the upper portion of the mandrel 5 is coaxially sleeved in the bearing seat 6, a fixing seat 7 is fixedly installed below the platform 1, a rotation driving mechanism is fixedly installed on the fixing seat 7, and the lower end of the mandrel 5 penetrates through the bearing seat 6 and then is installed together with the rotation driving mechanism.

According to the demand, dabber 5 is big-end-up's step axle, and dabber 5 upper end and location fluted disc 12 are in the same place through a plurality of bolt demountable installation along the circumference equipartition, and dabber 5 and 6 inboard intervals are equipped with two bearings from top to bottom, and 5 lower part outsides fixed mounting of dabber have the nut that is used for spacing bearing. In the use, through such setting, be convenient for install dabber 5 and rotation actuating mechanism, the installation is simple, the maintenance is convenient, will rotate actuating mechanism and locate platform 1 below, can the rational utilization space, avoid processing equipment or rigging equipment and rotation actuating mechanism to interfere with each other.

As shown in fig. 1 and 3, the rotation driving mechanism includes a fixing seat 7, a push-pull cylinder 10 and a rack 9, a gear 8 is fixedly mounted at the lower end of the mandrel 5, the fixing seat 7 is provided with the rack 9 meshed with the gear 8, the push-pull cylinder 10 is fixedly mounted on the fixing seat 7, and a push-pull piston rod 11 which extends out of the push-pull cylinder 10 and is fixedly mounted with the end of the rack 9 is arranged in the push-pull cylinder 10.

The push-pull cylinder 10 is a conventionally known cylinder according to the requirement. In the use process, through the arrangement, the push-pull piston rod 11 of the push-pull air cylinder 10 extends or retracts to enable the supporting column to rotate in a reciprocating mode in the clockwise or anticlockwise direction, and through the arrangement of the rack 9, the rotating angle of the gear 8 can be accurately controlled, so that the machining or assembling of a plurality of angular directions of a cross-shaft type universal joint or a disc part can be met.

As shown in fig. 1, 2, 3 and 4, the upper end surface of the positioning fluted disc 12 is at least provided with two tooth areas, each tooth area is provided with a plurality of strip-shaped clamping grooves 14 which are arranged in parallel at intervals, and an included angle can be formed between the strip-shaped clamping grooves of at least two tooth areas.

According to the requirement, four tooth areas are symmetrically distributed on the upper end face of the positioning fluted disc 12, and strip-shaped convex teeth matched with the strip-shaped clamping grooves 14 of the positioning fluted disc 12 are distributed on the end face of the cross shaft type universal joint or the end face of the disc part used in cooperation with the positioning fluted disc so that the strip-shaped convex teeth can be clamped into the corresponding strip-shaped clamping grooves 14 when the positioning fluted disc is installed, and bidirectional accurate torque transmission can be realized.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. The utility model provides a rotary clamping device, its characterized in that includes the platform, actuating mechanism, rotation post and clamping component, it installs rotation post to rotate on the platform, it is equipped with the draw-in groove that can positive and negative two-way transmission moment of torsion to rotate the post upper end, be equipped with on the platform and make rotation post pivoted actuating mechanism, it has a plurality of clamping component to distribute along the central axis circumference interval of rotation post on the platform, clamping component includes the lever jar, the chuck, depression bar and backup pad, lever jar lower extreme and platform fixed mounting together, there is the lever piston pole that stretches out in the lever jar outside on the lever jar, lever piston pole upper end is connected with the one end of depression bar is articulated, the other end of depression bar is fixed with the chuck that the lower extreme is close to rotation post upper end, the backup pad sets up between chuck and lever piston pole, the upper and lower both ends of backup pad are connected with depression bar and lever jar upside correspond the position is articulated respectively.

2. The rotary clamping device as claimed in claim 1, wherein the lower end surface of the collet adjacent to the rotary post is convexly curved.

3. The rotary clamping device according to claim 1 or 2, wherein a rotation hole is formed in the center of the platform and penetrates through the platform from top to bottom, the rotation column comprises a spindle and a bearing seat fixedly mounted on the inner side of the rotation hole from the outer side of the upper portion of the spindle, a positioning fluted disc is detachably mounted on the upper end of the spindle, a clamping groove is formed in the upper end surface of the positioning fluted disc, the upper end of the positioning fluted disc and the lower end of the chuck are close to each other, the outer side of the upper portion of the spindle is coaxially sleeved in the bearing seat, a fixed seat is fixedly mounted below the platform, a rotation driving mechanism is fixedly mounted on the fixed seat, and the lower end of the spindle penetrates through the bearing seat and then is mounted with the rotation driving mechanism.

4. The rotary clamping device according to claim 3, wherein the rotary driving mechanism comprises a fixed base, a push-pull cylinder and a rack, a gear is fixedly mounted at the lower end of the mandrel, the fixed base is provided with the rack meshed with the gear, the push-pull cylinder is fixedly mounted on the fixed base, and a push-pull piston rod which extends out of the outer side of the push-pull cylinder and is fixedly mounted with the end of the rack is arranged in the push-pull cylinder.

5. The rotary clamping device as claimed in claim 3, wherein the positioning fluted disc has at least two tooth regions on the upper end surface thereof, each tooth region has a plurality of strip slots spaced apart from each other in parallel, and an included angle is formed between the strip slots of at least two tooth regions.

6. The rotary clamping device as claimed in claim 4, wherein the positioning fluted disc has at least two tooth regions on the upper end surface thereof, each tooth region has a plurality of strip slots spaced apart from each other in parallel, and an included angle is formed between the strip slots of at least two tooth regions.