CN212887284U

CN212887284U - Clamping device and shock absorber assembling equipment with same

Info

Publication number: CN212887284U
Application number: CN202020438260.8U
Authority: CN
Inventors: 刘波; 刘海
Original assignee: Sichuan Zhongzhi Rongchuang Technology Co ltd
Current assignee: Sichuan Zhongzhi Rongchuang Technology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-04-06
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a clamping device and have its bumper shock absorber rigging equipment. The clamping device comprises a driving piece, an installation base part, a driving block, two rotating arms and two clamping parts, wherein the driving block is installed on the installation base part and driven by the driving piece to do linear motion along a first direction; the clamping device has a clamping position and a non-clamping position. The clamping device can accurately clamp the workpiece or the product and prevent the workpiece or the product from deviating from a preset clamping position.

Description

Clamping device and shock absorber assembling equipment with same

Technical Field

The utility model relates to a frock clamp technical field particularly, relates to a clamping device and have its bumper shock absorber rigging equipment.

Background

When clamping a workpiece or a product, a clamping mechanism in the prior art generally adopts two openable clamping jaws for clamping, and the two clamping jaws are opened and closed by rotating around the same point on the symmetry line of the two clamping jaws (for example, the operation mode of a Y-shaped clamping jaw cylinder).

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device and have its bumper shock absorber rigging equipment to solve foretell technical problem.

According to a first aspect of the present invention, there is provided a clamping device, comprising a driving member, an installation base, a driving block, two rotating arms and two clamping portions, wherein the driving block is installed on the installation base and is driven by the driving member to make a linear motion along a first direction, the two rotating arms are respectively hinged on the installation base and are symmetrically arranged relative to the driving block, each rotating arm comprises a first end and a second end, a hinge point of each rotating arm is located between the first end and the second end, the first end is movably connected with the driving block, and the clamping portions are in one-to-one correspondence and are pivotally connected to the second end;

the clamping device is provided with a clamping position and a non-clamping position, the driving piece pushes the driving block to move forwards, and the second ends of the two rotating arms rotate relatively, so that the two clamping parts do linear motion along a second direction and approach each other, and the clamping device is located at the clamping position;

the driving piece pulls the driving block to move backwards, and the second ends of the two rotating arms rotate in opposite directions, so that the two clamping parts do linear motion along the second direction and are far away from each other, and the clamping device is located at the non-clamping position.

Optionally, the clamping device further comprises a guide rail disposed on the mounting base, the drive block being slidably disposed on the guide rail.

Optionally, the drive block is configured in a trapezoidal shape including two inclined surfaces opposite and perpendicular to the mounting base surface, the inclined surfaces contacting the first end of the rotating arm.

Optionally, the clamping device further includes a first cover plate, two pulleys and two installation shafts, the pulleys are rotatably installed at the first end through the installation shafts in a one-to-one correspondence manner, the first cover plate is fixedly arranged on the driving block, the driving member is connected with the first cover plate, two sliding grooves which are oppositely arranged are formed in the first cover plate, the extending directions of the two sliding grooves are parallel to the top edge of the inclined surface respectively, and at least part of the installation shaft extends into the sliding grooves.

Optionally, the clamping device further includes a first rotating shaft, the first rotating shaft is disposed on the mounting base, and the rotating arm is sleeved on the first rotating shaft.

Optionally, the clamping device further comprises a second rotating shaft, a connecting rod and a third rotating shaft, one end of the connecting rod is hinged to the second end through the second rotating shaft, and the other end of the connecting rod is hinged to the clamping portion through the third rotating shaft.

Optionally, a T-shaped groove extending along the second direction is provided on the mounting base, one end of the clamping portion is configured as a T-shaped block matched with the T-shaped groove, and the T-shaped block is slidably disposed in the T-shaped groove.

Optionally, each of the clamping portions is provided with a groove extending in the up-down direction, and the grooves of the two clamping portions are arranged oppositely.

Optionally, the clamping device further includes a second cover plate disposed above the two rotating arms, and the second cover plate has a connecting hole for accommodating the first rotating shaft.

According to the utility model discloses a second aspect provides a bumper shock absorber rigging equipment, bumper shock absorber rigging equipment includes frame and foretell clamping device, clamping device installs in the frame.

The embodiment of the utility model provides a beneficial effect is: under the effect of driving piece, namely, the driving piece promotes the drive block and moves along first direction, and then make two clamping parts be close to each other or keep away from through two rotor arms, and, in the in-process of opening and shutting of two clamping parts, two clamping parts are linear motion along the second direction, can make two clamping parts remain parallel throughout like this, when carrying out the centre gripping to work piece or product, two clamping parts can produce the clamping-force of equidimension to work piece or product simultaneously, can make work piece or product can stably centre gripping between two clamping parts like this, prevent to loosen and make the activity duration extension because of work piece or product, because work piece or product can accurately centre gripping in preset position, thereby can prevent work piece or product skew preset position, avoid influencing subsequent processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a clamping device according to an embodiment of the present invention;

FIG. 2 is a schematic partial structural view of FIG. 1, wherein the first cover plate and the second cover plate are not shown;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

fig. 4 is a schematic structural diagram of a semi-finished damper according to an embodiment of the present invention, wherein the damper spring is not shown at this time.

Icon: 100-a drive member; 110-connecting block; 120-a mounting base; 121-a first sidewall; 1211-T type groove; 122-a bottom wall; 123-a second side wall; 124-a first cover plate; 1241-chute; 125-a second cover plate; 1251-connecting hole; 130-a drive block; 140-a guide rail; 150-a pulley; 160-a rotating arm; 161-a first shaft; 162-a second shaft; 163-mounting shaft; 170-connecting rod; 180-a clamping portion; 181-clamping block; 182-T-shaped blocks; 183-third rotating shaft; 200-semi-finished product damper; 201-shock absorber outer tube; 202-shock absorber lug.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, according to a first aspect of the present invention, there is provided a clamping device, which includes a driving member 100, a mounting base 120, a driving block 130, two rotating arms 160 and two clamping portions 180, wherein the driving block 130 is mounted on the mounting base 120 and is driven by the driving member 100 to move linearly along a first direction, the mounting base 120 may be a flat plate structure or a profiled plate structure, i.e., may not be limited to the flat plate structure, the two rotating arms 160 are respectively hinged on the mounting base 120 and are symmetrically arranged with respect to a guide rail 140, the rotating arms 160 include a first end and a second end, the first end is movably connected with the driving block 130, each rotating arm 160 includes a first section and a second section connected with each other, an included angle between the first section and the second section is an obtuse angle, a hinge point of the rotating arm 160 is located between the first end and the second end, clamping part 180 one-to-one and pivotally connect in the second end, clamping device has clamping position and non-clamping position, driving piece 100 promotes driving block 130 and moves forward, the second end of two rotor arms 160 rotates relatively, make two clamping part 180 be linear motion and be close to each other along the second direction, thereby make clamping device be in the clamping position, driving piece 100 pulling driving block 130 moves backward, the second end of two rotor arms 160 rotates back to back mutually, make two clamping part 180 be linear motion and keep away from each other along the second direction, thereby make clamping device be in non-clamping position.

It should be noted that the first direction and the second direction are perpendicular to each other.

Based on the above technical solution, under the action of the driving element 100, that is, the driving element 100 pushes the driving block 130 to move along the first direction, and then the two clamping portions 180 are made to approach or separate from each other through the two rotating arms 160, and in the opening and closing process of the two clamping portions 180, the two clamping portions 180 make a linear motion along the second direction, so that the two clamping portions 180 can always keep parallel, when clamping a workpiece or a product, the two clamping portions 180 can simultaneously generate clamping forces of the same magnitude on the workpiece or the product, so that the workpiece or the product can be stably clamped between the two clamping portions 180, the operation time is prevented from being prolonged due to the loosening of the workpiece or the product, and since the workpiece or the product can be accurately clamped at a predetermined position, the workpiece or the product can be prevented from deviating from the predetermined position, and subsequent processing is prevented from being affected, in addition, the linear motion of the driving block 130 along the first direction is converted into the linear motion of the two clamping parts 180 along the second direction perpendicular to the first direction, the structural design is ingenious, and the spatial arrangement of the clamping device is very reasonable based on the arrangement form that the two rotating arms 160 and the two clamping parts 180 are symmetrical relative to the first direction.

It will be appreciated that in order to enable a more stable clamping of the workpiece or product, the opposing faces of the two clamping portions 180 may be arranged as mutually parallel faces, where the faces may be not only planar but also non-planar, for example, the faces may be at least partially recessed into the interior of the clamping portions 180.

It should be noted that the shape of the workpiece or product in this embodiment may be a cylindrical structure, a prismatic structure, etc., and it is understood that when the opposing faces of the two clamping portions 180 are configured as flat faces, they are suitable for clamping a prismatic workpiece or product, for example, a quadrangular prism or a hexagonal prism workpiece or product. When the workpiece or product is cylindrical, the opposite surfaces of the two clamping portions 180 are preferably cambered surfaces or the surfaces are at least partially recessed toward the inner portions of the clamping portions 180.

In this embodiment, the driving member 100 may be configured in any suitable structure, for example, the driving member may be a hydraulic cylinder, an air cylinder, a linear motor, or the like.

Further, the clamping device further comprises a guide rail 140, the guide rail 140 is arranged on the mounting base 120, the guide rail 140 extends along the first direction, the driving block 130 is slidably arranged on the guide rail 140, and by arranging the driving block 130 on the guide rail 140, the friction force between the driving block 130 and the mounting base 120 can be reduced, so that the abrasion between the driving block 130 and the mounting base 120 can be reduced, the service life of the clamping device can be prolonged, and the maintenance cost of the clamping device can be reduced.

In some other embodiments, the guide rail 140 may be replaced with other mechanisms, for example, a lead screw and nut mechanism may be used.

In addition, a positioning groove extending along the first direction may be formed on the mounting base 120, and a protrusion portion matching with the positioning groove is disposed on the bottom surface of the driving block 130, so that the driving block 130 may be driven by the driving member 100 to move linearly along the first direction. Accordingly, a protrusion may be provided on the mounting base 120, and a positioning groove may be provided on the bottom surface of the driving block 130, so that the driving block 130 can be accurately moved in the first direction.

Referring to fig. 1 and 2, further, the driving block 130 is configured in a trapezoidal shape, and includes two inclined surfaces opposite and perpendicular to the surface of the mounting base 120, the inclined surfaces being used for contacting the first ends of the two rotating arms 160, and the two rotating arms 160 can be synchronously pushed to rotate by the contact of the two inclined surfaces with the first ends of the two rotating arms 160, so as to realize the synchronous movement of the two clamping portions 180.

Referring to fig. 1, 2 and 3, further, the clamping device further includes a first cover plate 122, two pulleys 150 and two mounting shafts 163, the pulleys 150 are rotatably mounted at the first end through the mounting shafts 163 in a one-to-one correspondence manner, the first cover plate 122 is fixedly disposed on the driving block 130, the driving member 100 is connected to the first cover plate 122, two sliding grooves 1221 disposed opposite to each other are disposed on the first cover plate 122, the sliding grooves 1221 may be disposed in a bar shape, the extending directions of the two sliding grooves 1221 are respectively parallel to the top edge of the inclined surface, at least a portion of the mounting shafts 163 extends into the sliding grooves 1221, during the rotation of the rotating arm 160, the shortest distance between the axis of the mounting shafts 163 and the inclined surface is always unchanged, that is, during this process, the pulleys 150 are always in contact with the inclined. When the driving block 130 is moved forward by the driving member 100, the pulley 150 gradually slides relative to the inclined surface and both the pulley 150 and the mounting shaft 163 gradually approach the driving member 100, and when the mounting shaft 163 contacts one end of the sliding groove 1221, the distance between the two clamping portions 180 is minimized, so that the workpiece or the product can be firmly clamped between the two clamping portions 180. When the driving block 130 is moved backward by the driving member 100, the pulley 150 and the mounting shaft 163 gradually move away from the driving member 100, and at this time, the distance between the two clamping portions 180 increases. It can be understood that the pulley 150 contacting the inclined surface can reduce the friction between the rotating arm 160 and the driving block 130, and reduce the wear between the rotating arm 160 and the driving block 130, thereby being beneficial to prolonging the service life of the clamping device.

In some other embodiments, the pulley 150 may also be implemented with a ball bearing, or other structure having an arcuate surface.

Further, the mounting base 120 includes a bottom wall 122, two first side walls 121, and one second side wall 123, the bottom wall 122 may be configured in a rectangular structure, the rotating arm 160 and the guide rail 140 are both mounted on the bottom wall 122, the two first side walls 121 are respectively connected with two opposite side surfaces of the bottom wall 122, the second side wall 123 is perpendicular to the bottom wall 122 and is respectively connected with the two first side walls 121, a hole for the output end of the driving member 100 to pass through is formed in the second side wall 123, and the second side wall 123 can also limit the driving block 130, i.e., the driving block 130 is limited to move backwards, the bottom wall 122 and the two first side walls 121 together form a U-shaped structure or a groove-shaped structure, that is, the intermediate portion of the mounting base 120 forms a mounting space, and when the rotating arm 160 and the guide rail 140 are disposed in the mounting space, the size of the clamping device can be reduced, and the spatial layout of the clamping device can be optimized.

Referring to fig. 1, 2 and 3, further, the clamping device further includes a first rotating shaft 161, the first rotating shaft 161 is disposed on the mounting base 120, and the rotating arm 160 is sleeved on the first rotating shaft 161, wherein the first rotating shaft 161 may be fixedly mounted on the mounting base 120 or may be rotatably connected with the mounting base 120, the first rotating shaft 161 is perpendicular to the mounting base 120, the first rotating shaft 161 and the rotating arm 160 are in clearance fit, and a through hole for the first rotating shaft 161 to pass through is formed in the rotating arm 160, so that the rotating arm 160 may be conveniently mounted. In addition, when the first rotating shaft 161 is installed, an installation hole can be formed in the surface of the installation base 120, so that the first rotating shaft 161 is inserted into the installation hole, the assembly difficulty of the clamping device is reduced, and the assembly efficiency is improved.

Referring to fig. 1, 2 and 3, the clamping device further includes a second rotating shaft 162, a connecting rod 170 and a third rotating shaft 183, one end of the connecting rod 170 is hinged to the second end through the second rotating shaft 162, and the other end of the connecting rod 170 is hinged to the clamping portion 180 through the third rotating shaft 183, wherein the second end of the rotating arm 160 may be configured in a U-shaped structure, so that one end of the connecting rod 170 extends into the U-shaped structure and is then hinged by the second rotating shaft 162, and correspondingly, a portion of the clamping portion 180 may also be configured in a U-shaped structure, so that the other end of the connecting rod 170 and the clamping portion 180 are hinged together through the third rotating shaft 183, and the connecting rod 170 rotates therewith during the rotation of the rotating arm 160. In addition, a T-shaped groove 121 perpendicular to the guide rail 140 is formed in the mounting base 120, one end of the clamping portion 180 is configured as a T-shaped block 182 matched with the T-shaped groove 121, the T-shaped block 182 is slidably disposed in the T-shaped groove 121, and under the action of an external force, since the clamping portion 180 can only slide in the T-shaped groove 121, when the connecting rod 170 rotates and rotates simultaneously, the connecting rod 170 can push or pull the clamping portion 180 to slide relative to the T-shaped groove 121, so that the two clamping portions 180 can synchronously move close to or away from each other, the two clamping portions 180 can linearly move in the second direction, and a workpiece or a product between the two clamping portions 180 can be accurately clamped at a predetermined position.

Referring to fig. 2 and 3, each clamping portion 180 includes a base body and a clamping block 181, the clamping block 181 is fixedly disposed on the base body, for example, the clamping block 181 may be fixed on the base body by a bolt, a groove extending in an up-down direction is disposed on the clamping block 181, where the up-down direction is a direction parallel to the axis of the mounting shaft 163, the grooves of the two clamping blocks 181 are opposite, and since a portion of the clamping block 181 is a plane and another portion is a concave surface (i.e., a groove), the application range of the clamping device may be wider, that is, the clamping block 181 is suitable for clamping both cylindrical workpieces or products and prismatic workpieces or products, and thus, only one clamping block 181 may be used to be suitable for multiple workpieces or products, thereby reducing the kinds of spare parts of the clamping block 181 and reducing the use cost of the clamping device.

In addition, the groove may be a rectangular groove or a triangular groove.

Referring to fig. 1, the clamping device further includes a second cover plate 123, the second cover plate 123 is disposed above the two rotating arms 160, the second cover plate 123 has a connecting hole 1231 for accommodating the first rotating shaft 161, and the second cover plate 123 is disposed to shield a part of the structure of the rotating arms 160, so as to prevent foreign matters from falling into the second cover plate and prevent the clamping device from being affected by the foreign matters, and in addition, prevent fingers of a worker possibly existing in the rotating arms 160 during the rotating process from extending into the second cover plate.

It should be noted that a part of the T-shaped groove 1211 is formed by the second cover plate 123 and the bottom wall 122, and another part of the T-shaped groove 1211 is formed by the two first sidewalls 121.

Referring to fig. 1 and 2, the clamping device further includes a connecting block 110, the connecting block 110 is disposed on the first cover plate 122 and is fixedly connected with the first cover plate 122, for example, the connecting block 110 may be welded or snapped together with the first cover plate 122, the driving member 100 is connected with the connecting block 110, and by disposing the connecting block 110, the connecting block may be more conveniently connected with the piston rod of the driving member 100 than a plate-shaped structure.

According to the utility model discloses a second aspect provides a bumper shock absorber rigging equipment, and this bumper shock absorber rigging equipment includes frame and foretell clamping device, and clamping device installs in the frame.

Fig. 4 is a schematic structural diagram of a semi-finished shock absorber, which shows a shock absorber lifting lug 202 of the shock absorber, an outer tube 201 of the shock absorber, and a connecting rod at least partially sleeved in the outer tube 201 of the shock absorber.

A specific use scenario of the clamping device of the present invention can be as follows, that is, the clamping device can be used for clamping a shock absorber, in the assembly process of the shock absorber, the connecting rod is often required to be pulled out relative to the shock absorber outer tube 201 in order to assemble other components, in this case, the lifting mechanism (e.g., a screw nut mechanism or a rack-and-pinion mechanism, etc.) can be arranged, that is, the lifting mechanism is arranged between the clamping device and the frame to lift the clamping device relative to the frame, so that the connecting rod can be clamped by the two clamping portions 180 in the clamping device, and the lifting mechanism drives the clamping device to lift to pull out the connecting rod, since the grooves of the clamping portions 180 extend in the up-down direction, the contact area between the grooves and the connecting rod of the shock absorber is increased, so that the connecting rod can be stably clamped, and the inner surfaces of the two grooves are parallel to each other and extend in, the connecting rod of the shock absorber can be always kept in a vertical state in the lifting process, and therefore the assembling precision of the shock absorber is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device is characterized by comprising a driving piece (100), a mounting base part (120), a driving block (130), two rotating arms (160) and two clamping parts (180), wherein the driving block (130) is mounted on the mounting base part (120) and is driven by the driving piece (100) to do linear motion along a first direction, the two rotating arms (160) are respectively hinged on the mounting base part (120) and are symmetrically arranged relative to the driving block (130), the rotating arms (160) comprise a first end and a second end, the hinged point of the rotating arms (160) is located between the first end and the second end, the first end is movably connected with the driving block (130), and the clamping parts (180) are correspondingly and pivotally connected with the second end one by one;

the clamping device is provided with a clamping position and a non-clamping position, the driving piece (100) pushes the driving block (130) to move forwards, and the second ends of the two rotating arms (160) rotate relatively, so that the two clamping parts (180) move linearly along a second direction and approach each other, and the clamping device is located at the clamping position;

the driving piece (100) pulls the driving block (130) to move backwards, and the second ends of the two rotating arms (160) rotate oppositely, so that the two clamping parts (180) do linear motion along the second direction and are far away from each other, and the clamping device is located at the non-clamping position.

2. The clamping device of claim 1, further comprising a guide rail (140), the guide rail (140) being disposed on the mounting base (120), the drive block (130) being slidably disposed on the guide rail (140).

3. The clamping device of claim 1, wherein the drive block (130) is configured as a trapezoid comprising two opposing inclined surfaces perpendicular to the surface of the mounting base (120), the inclined surfaces being in contact with the first end of the pivot arm (160).

4. The clamping device of claim 3, further comprising a first cover plate (122), two pulleys (150) and two mounting shafts (163), wherein the pulleys (150) are rotatably mounted on the first end through the mounting shafts (163) in a one-to-one correspondence, the first cover plate (122) is fixedly disposed on the driving block (130), the driving member (100) is connected to the first cover plate (122), two oppositely disposed sliding grooves (1221) are formed in the first cover plate (122), the two sliding grooves (1221) extend in directions parallel to the top edges of the inclined surfaces, respectively, and at least a portion of the mounting shafts (163) extend into the sliding grooves (1221).

5. The clamping device of claim 1, further comprising a first shaft (161), wherein the first shaft (161) is disposed on the mounting base (120), and wherein the rotating arm (160) is sleeved on the first shaft (161).

6. The clamping device according to claim 1 or 5, further comprising a second rotating shaft (162), a connecting rod (170) and a third rotating shaft (183), wherein one end of the connecting rod (170) is hinged with the second end through the second rotating shaft (162), and the other end of the connecting rod (170) is hinged on the clamping part (180) through the third rotating shaft (183).

7. Clamping device according to claim 1, wherein the mounting base (120) is provided with a T-shaped groove (121) extending in the second direction, one end of the clamping portion (180) is configured as a T-shaped block (182) cooperating with the T-shaped groove (121), the T-shaped block (182) being slidably arranged in the T-shaped groove (121).

8. Clamping device according to claim 1, characterized in that each clamping part (180) is provided with a groove extending in an up-down direction, the grooves of the two clamping parts (180) being arranged opposite each other.

9. Clamping device according to claim 5, characterized in that it further comprises a second cover plate (123), said second cover plate (123) being arranged above said two rotating arms (160), said second cover plate (123) having a coupling hole (1231) to receive said first rotating shaft (161).

10. A shock absorber mounting apparatus comprising a frame and a holding device as claimed in any one of claims 1 to 9, said holding device being mounted on said frame.