CN211136316U

CN211136316U - High-precision clamp

Info

Publication number: CN211136316U
Application number: CN201921524758.XU
Authority: CN
Inventors: 吴荡; 杨利; 张圣军
Original assignee: Changsha Zhengyou Precision Automation Technology Co ltd
Current assignee: Changsha Zhengyou Precision Automation Technology Co ltd
Priority date: 2019-09-15
Filing date: 2019-09-15
Publication date: 2020-07-31
Anticipated expiration: 2029-09-15

Abstract

The utility model discloses a high-precision clamp, which comprises a base, a sideline clamping plate, an end angle clamping plate, a transmission assembly and a driving gear; two movable clamping plates are arranged and symmetrically connected to the top surface of the base in a sliding manner; the sideline clamping plate is arranged on the top surface of the base and forms a rectangular clamping area with the two movable clamping plates; the transmission assembly is arranged on the inner top surface of the base, and the output end of the transmission assembly is connected with the two movable clamping plates; the two movable clamping plates synchronously move towards the direction close to the sideline clamping plate under the pushing of the transmission assembly, and the distance between the two movable clamping plates is gradually reduced along with the moving distance towards the direction close to the sideline clamping plate; the driving gear is rotatably arranged on the opening of the side wall of the base and is meshed with the input end of the transmission component. The utility model discloses the structure is ingenious, through the position of rotating two end angle splint of drive gear synchro control, cooperation sideline splint realize carrying out the centre gripping to not unidimensional panel, and the regulation precision is high, has improved the degree of matching of anchor clamps to panel greatly.

Description

High-precision clamp

Technical Field

The utility model relates to an automobile manufacturing field especially relates to a high accuracy anchor clamps.

Background

At present, in the automobile manufacturing process, a large number of plates are needed, and most of the plates are blanked by a plate shearing machine. The plate relates to a large number of processing processes such as drilling and milling, and the plate is clamped and positioned by the plate clamp in the processing processes so as to be convenient for processing the plate. Because its size of panel that uses on the different material spare is all inequality, and anchor clamps need can the multiple size of adaptation panel in proper order, and at present, current panel anchor clamps adopt two clamp splices to carry out the adjusting position through the screw rod respectively in order to can the not unidimensional panel of adaptation, realize the centre gripping to not unidimensional panel, but this kind of clamping structure uses inconveniently, need operate two screw rods respectively, and the centre gripping precision is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient to use can more match the high accuracy anchor clamps of panel.

Realize the utility model discloses the technical scheme of purpose is: a high-precision clamp comprises a base, a sideline clamping plate, an end angle clamping plate, a transmission assembly and a driving gear; the two end corner clamping plates are symmetrically connected to the top surface of the base in a sliding manner; the side line clamping plates are arranged on the top surface of the base and form a rectangular clamping area together with the two end corner clamping plates; the transmission assembly is arranged on the inner top surface of the base, and the output end of the transmission assembly is connected with the two end corner clamping plates; the two end angle clamping plates synchronously move towards the direction close to the sideline clamping plate under the pushing of the transmission assembly, and the distance between the two end angle clamping plates is gradually reduced along with the moving distance towards the direction close to the sideline clamping plate; the driving gear is rotatably arranged on the opening of the side wall of the base and is meshed with the input end of the transmission assembly.

The top surface of the base is provided with two sliding guide grooves which are symmetrically arranged; the included angle between the central extension line of the sliding guide groove and the sideline clamping plate is 45 degrees; the two end corner clamping plates are respectively connected in the two sliding guide grooves in a sliding mode.

The transmission assembly comprises a gear ring, a supporting gear and a rack; three support gears are rotatably connected to the inner top surface of the base; the gear ring is surrounded on the three supporting gears, and the inner wall of the gear ring is meshed with the three supporting gears; the two racks are respectively fixed at the bottoms of the two end corner clamping plates; the two racks are respectively positioned on one side of the two supporting gears and are respectively meshed with the two supporting gears; the drive gear is engaged with a support gear.

The supporting gear of the transmission assembly sequentially comprises an upper fluted disc, a lower fluted disc and a supporting plate from top to bottom; the upper fluted disc is meshed with the rack or the driving gear; the lower fluted disc is meshed with the gear ring; the supporting plate is matched with the bottom end face of the gear ring.

A positioning component is arranged on an opening on the side wall of the base; the positioning component comprises a ratchet hook and a torsion spring; the ratchet hook is rotatably connected with the opening on the side wall of the base; the torsion spring is sleeved on the ratchet hook, and two torsion arms of the torsion spring are respectively connected with the base and the ratchet hook; the ratchet hook is matched with the driving gear under the elastic support of the torsion spring to limit the unidirectional rotation of the driving gear.

The end angle clamping plate comprises a sliding block, a bottom plate and an L-shaped plate, wherein the sliding block is connected in a sliding guide groove of the base in a sliding mode, the bottom plate is arranged on the sliding block, and the L-shaped plate is arranged on the bottom plate and matched with an end angle of a plate.

A base plate is arranged in the middle of the top surface of the base; the horizontal height of the top end face of the base plate is consistent with that of the bottom plate of the end corner clamping plate.

By adopting the technical scheme, the utility model discloses following beneficial effect has: (1) the utility model discloses the structure is ingenious, through the position of rotating two end angle splint of drive gear synchro control, cooperation sideline splint realize carrying out the centre gripping to not unidimensional panel, and the regulation precision is high, has improved the degree of matching of anchor clamps to panel greatly.

(2) The utility model discloses a locating component can effectively restrict drive gear one-way movement, avoids receiving external force to lead to the skew after the position has been adjusted to end angle splint.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a top view of the present invention;

FIG. 2 is a schematic structural view of the inner top surface of the base according to the present invention;

fig. 3 is a schematic structural diagram of the support gear and the gear ring of the transmission assembly of the present invention.

The reference numbers of the attached drawings are that a base 1, a sliding guide groove 1-1, a backing plate 1-2, a sideline clamping plate 2, an end angle clamping plate 3, a sliding block 3-1, a bottom plate 3-2, an L template 3-3, a transmission component 4, a gear ring 4-1, a supporting gear 4-2, an upper gear disc 4-2-1, a lower gear disc 4-2-2, a supporting plate 4-2-3, a rack 4-3, a driving gear 5, a positioning component 6 and a ratchet hook 6-1.

Detailed Description

Example one

Referring to fig. 1 to 3, the high-precision clamp of the present embodiment includes a base 1, a side line clamping plate 2, an end angle clamping plate 3, a transmission assembly 4 and a driving gear 5.

The two end angle clamping plates 3 are symmetrically and slidably connected to the top surface of the base 1. The side line splint 2 is arranged on the top surface of the base 1 and forms a rectangular clamping area with the two end corner splints 3. The transmission assembly 4 is arranged on the inner top surface of the base 1, and the output end of the transmission assembly is connected with the two end corner clamping plates 3. The two end angle clamping plates 3 synchronously move towards the direction close to the sideline clamping plate 2 under the pushing of the transmission component 4, and the distance between the two end angle clamping plates 3 is gradually reduced along with the moving distance towards the direction close to the sideline clamping plate 2. The driving gear 5 is rotatably disposed on the opening of the sidewall of the base 1 and is engaged with the input end of the transmission assembly 4. Through rotating the position of two end angle splint 3 of 5 synchronous regulation of drive gear, cooperation sideline splint 2 realizes carrying out the centre gripping to not unidimensional panel, and the regulation precision is high, has improved the degree of matching of anchor clamps to panel greatly.

In this embodiment, two sliding guide grooves 1-1 are provided on the top surface of the base 1, and the two sliding guide grooves 1-1 are symmetrically arranged. The central extension line of the sliding guide groove 1-1 forms an included angle of 45 degrees with the sideline splint 2. The two end angle clamping plates 3 are respectively connected in the two sliding guide grooves 1-1 in a sliding way.

In the present embodiment, the transmission assembly 4 includes a ring gear 4-1, a support gear 4-2, and a rack gear 4-3. Three support gears 4-2 are rotatably connected to the inner top surface of the base 1. The ring gear 4-1 is looped around the three support gears 4-2, and the inner wall of the ring gear 4-1 is meshed with the three support gears 4-2. Preferably, the three support gears 4-2 are circumferentially arranged along the same central axis, and the axis of the ring gear 4-1 is collinear with the central axis. Two racks 4-3 are arranged and are respectively fixed at the bottoms of the two end corner clamping plates 3. The two racks 4-3 are respectively located at the right sides of the two support gears 4-2 and are respectively engaged with the two support gears 4-2. The drive gear 5 is engaged with one of the support gears 4-2 which is not engaged with the rack gear 4-3.

In this embodiment, the supporting gear 4-2 of the transmission assembly 4 comprises an upper toothed disc 4-2-1, a lower toothed disc 4-2-2 and a supporting plate 4-2-3 in sequence from top to bottom. The upper fluted disc 4-2-1 is meshed with the rack 4-3 or the driving gear 5. The lower fluted disc 4-2-2 is meshed with the gear ring 4-1. The support plate 4-2-3 is matched with the bottom end surface of the gear ring 4-1.

In this embodiment, the positioning assembly 6 is disposed on the opening of the sidewall of the base 1. The positioning assembly 6 comprises a ratchet hook 6-1 and a torsion spring. The ratchet hook 6-1 is rotatably connected with the side wall opening of the base 1. The torsion spring is sleeved on the ratchet hook 6-1, and two torsion arms of the torsion spring are respectively connected with the base 1 and the ratchet hook 6-1. The ratchet hook 6-1 is matched with the driving gear 5 under the elastic support of the torsion spring to limit the unidirectional rotation of the driving gear 5.

In this embodiment, the end corner clamp plate 3 comprises a sliding block 3-1, a bottom plate 3-2 and L shaped plates 3-3, the sliding block 3-1 is slidably connected in a sliding guide groove 1-1 of the base 1, the bottom plate 3-2 is arranged on the sliding block 3-1, L shaped plates 3-3 are arranged on the bottom plate 3-2 and are matched with the end corners of the plates.

In this embodiment, a pad 1-2 is provided at the center of the top surface of the base 1. The horizontal height of the top end surface of the base plate 1-2 is consistent with the horizontal height of the top end surface of the bottom plate 3-2 of the end angle clamping plate 3.

When the plate clamping device is specifically implemented, a plate is flatly laid on a base plate 1-2 on the top surface of a base 1, the front end of the plate is attached to a sideline clamping plate 2, a driving gear 5 is manually rotated, the driving gear 5 drives a supporting gear 4-2 of a transmission component 4, a gear ring 4-1 is rotated, the rest two supporting gears 4-2 are driven by the gear ring 4-1 to rotate, two racks 4-3 and two end angle clamping plates 3 respectively connected with the two racks 4-3 are moved, the plate is clamped by matching the two end angle clamping plates 3 and the sideline clamping plate 2, as a ratchet hook 6-1 of a positioning component 6 is matched with the driving gear 5 under the driving of a torsion spring, the driving gear 5 is limited to rotate in one direction, the two end angle clamping plates 3 can be positioned after moving to a clamping position, the clamping looseness is avoided, after the plate is processed, the ratchet hook 6-1 is pulled to ensure that the ratchet hook 6-1 is not matched with the driving gear 5, and then the driving gear 5 is rotated reversely to ensure that the two end angle clamping plates 3 are reset.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A high accuracy anchor clamps which characterized in that: comprises a base (1), a sideline clamping plate (2), an end angle clamping plate (3), a transmission component (4) and a driving gear (5); the two end corner clamping plates (3) are symmetrically connected to the top surface of the base (1) in a sliding manner; the side line clamping plates (2) are arranged on the top surface of the base (1) and form a rectangular clamping area together with the two end corner clamping plates (3); the transmission assembly (4) is arranged on the inner top surface of the base (1), and the output end of the transmission assembly is connected with the two end corner clamping plates (3); the two end angle clamping plates (3) synchronously move towards the direction close to the sideline clamping plate (2) under the pushing of the transmission component (4), and the distance between the two end angle clamping plates (3) is gradually reduced along with the moving distance towards the direction close to the sideline clamping plate (2); the driving gear (5) is rotatably arranged on an opening of the side wall of the base (1) and is meshed with an input end of the transmission assembly (4).

2. The high-precision jig according to claim 1, characterized in that: the top surface of the base (1) is provided with two sliding guide grooves (1-1), and the two sliding guide grooves (1-1) are symmetrically arranged; the included angle between the central extension line of the sliding guide groove (1-1) and the sideline splint (2) is 45 degrees; the two end corner clamping plates (3) are respectively connected in the two sliding guide grooves (1-1) in a sliding manner.

3. The high-precision jig according to claim 1, characterized in that: the transmission assembly (4) comprises a gear ring (4-1), a supporting gear (4-2) and a rack (4-3); three support gears (4-2) are rotatably connected to the inner top surface of the base (1); the gear ring (4-1) surrounds the three supporting gears (4-2), and the inner wall of the gear ring (4-1) is meshed with the three supporting gears (4-2); two racks (4-3) are arranged and are respectively fixed at the bottoms of the two end corner clamping plates (3); the two racks (4-3) are respectively positioned at one side of the two supporting gears (4-2) and are respectively meshed with the two supporting gears (4-2); the driving gear (5) is meshed with a supporting gear (4-2).

4. The high-precision jig according to claim 3, characterized in that: the supporting gear (4-2) of the transmission assembly (4) sequentially comprises an upper fluted disc (4-2-1), a lower fluted disc (4-2-2) and a supporting plate (4-2-3) from top to bottom; the upper fluted disc (4-2-1) is meshed with the rack (4-3) or the driving gear (5); the lower fluted disc (4-2-2) is meshed with the gear ring (4-1); the supporting plate (4-2-3) is matched with the bottom end face of the gear ring (4-1).

5. The high-precision jig according to claim 1, characterized in that: a positioning component (6) is arranged on an opening on the side wall of the base (1); the positioning component (6) comprises a ratchet hook (6-1) and a torsion spring; the ratchet hook (6-1) is rotatably connected with the opening on the side wall of the base (1); the torsion spring is sleeved on the ratchet hook (6-1), and two torsion arms of the torsion spring are respectively connected with the base (1) and the ratchet hook (6-1); the ratchet hook (6-1) is matched with the driving gear (5) under the elastic support of the torsion spring to limit the unidirectional rotation of the driving gear (5).

6. A high-precision clamp according to claim 2, characterized in that the end corner clamp plate (3) comprises a sliding block (3-1), a bottom plate (3-2) and L-shaped plates (3-3), the sliding block (3-1) is connected in a sliding guide groove (1-1) of the base (1) in a sliding mode, the bottom plate (3-2) is arranged on the sliding block (3-1), and the L-shaped plates (3-3) are arranged on the bottom plate (3-2) and matched with the end corners of the plate.

7. The high-precision jig according to claim 6, characterized in that: a base plate (1-2) is arranged in the middle of the top surface of the base (1); the horizontal height of the top end face of the base plate (1-2) is consistent with that of the bottom end face of the bottom plate (3-2) of the end corner clamping plate (3).