CN219787469U - Multi-station clamping fixture - Google Patents

Abstract

The utility model discloses a multi-station clamping fixture, which belongs to the field of tool fixtures and comprises a base, wherein a positioning plane for positioning a workpiece is formed on the base; the clamping plate is provided with a plurality of clamping plates which are all arranged above the positioning plane; the transmission piece is used for forming transmission among the plurality of baffles so as to form a clamping chamber with a variable space size between any two clamping plates, and the clamping and positioning of workpieces with different sizes can be realized through the clamping chambers with the variable space sizes.

Description

Multi-station clamping fixture

Technical Field

The utility model relates to the field of tool clamps, in particular to a multi-station clamping clamp.

Background

The multi-station clamping fixture is used for installing and fixing a plurality of workpieces, in the prior art, the workpieces are generally installed on a base through a plurality of fixing plates, then the workpieces are placed between the plurality of fixing plates, through holes are formed in the fixing plates, threaded holes are formed in the base, the fixing plates are fixedly installed on the base through bolts, but the sizes of the workpieces are required to be accurately calculated, and then threaded holes with proper intervals are formed in the base;

the mode can only be applied to workpieces with one size, and is difficult to clamp and position the workpieces with different sizes, so that the universality is low.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model aims to provide a multi-station clamping fixture which can realize clamping and positioning of workpieces with different sizes through a plurality of clamping cavities with variable space sizes.

In order to solve the problems, the utility model adopts the following technical scheme.

A multi-station clamping fixture comprises a base, wherein a positioning plane for positioning a workpiece is formed on the base; the clamping plate is provided with a plurality of clamping plates which are all arranged above the positioning plane; and the transmission piece is used for forming transmission among the plurality of baffles so as to form a clamping chamber with a variable space size between any two clamping plates.

Further, the transmission member includes: a first guide bar and a second guide bar; the first guide rod and the second guide rod penetrate through the clamping plate, and the clamping plate is in sliding connection with the first guide rod and the second guide rod; an elastic piece is arranged between any two clamping plates and is used for enabling any two clamping plates to be subjected to driving external force from being close to each other to clamp a workpiece.

Further, the fixture further comprises a supporting piece for supporting and fixing the first guide rod at two ends of the first guide rod; the support piece is provided with a locking piece, and the locking piece is used for locking after the support piece moves along a preset track from a first position far away from the workpiece to a second position close to the workpiece for positioning the workpiece.

Further, the locking member includes: an abutment plate and a locking screw; the supporting piece is provided with a screw hole matched with the locking screw rod; the locking screw rod can be close to the abutting plate to move through rotation until the locking screw rod is in contact with the abutting plate, and the locking screw rod can be locked on the supporting piece through extrusion force.

Further, a driving member is provided at the support member for moving up and down the end of the first guide bar, thereby moving the clamping plate from the first height position to the second height position.

Further, the driving piece is connected with the end part of the first guide rod through a connecting structure; the connecting structure is used for realizing the hinging of the first guide rod relative to the support piece.

Further, set up the locating plate on the base, be provided with the logical groove that runs through on the locating plate, set up the screw rod in the logical groove, offered on the base with screw rod complex thread groove, the locating plate is close to the base, until screw rod and thread groove contact, then rotatory screw rod, through the screw rod with the relative base locking of locating plate, the locating plate is to the upside location of work piece.

Compared with the prior art, the utility model has the advantages that:

according to the scheme, workpieces with different sizes can be clamped and positioned through the clamping cavities with the variable space sizes.

Drawings

FIG. 1 is a schematic overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the support member of the present utility model;

FIG. 3 is a schematic view of the structure of the abutment plate and part of the surrounding parts of the present utility model;

FIG. 4 is a schematic view of the structure of the connection structure and part of the surrounding parts of the present utility model;

FIG. 5 is a schematic view of the chute and slider arrangement of the present utility model.

The reference numerals in the figures illustrate:

1. a base; 2. a clamping plate; 3. a transmission member; 31. a first guide bar; 32. a second guide bar; 33. an elastic member; 4. a support; 41. a first support plate; 42. a second support plate; 43. a slide block; 44. a chute; 5. a locking member; 51. locking the screw; 52. an abutting plate; 6. a driving member; 7. a connection structure; 71. a first connection base; 72. a second connecting seat; 73. a rotating shaft; 8. and (5) positioning the plate.

Detailed Description

Referring to figures 1-5 of the drawings,

a multi-station clamping fixture comprises a base 1, a clamping plate 2, a transmission part 3, a supporting part 4 and a locking part 5. The base 1 is formed with a positioning plane for positioning the workpiece. The clamping plate 2 is provided with a plurality of clamping plates which are all arranged above the positioning plane. The transmission member 3 is used for forming transmission among a plurality of baffles so as to form a clamping chamber with a variable space size between any two clamping plates 2. The supporting member 4 is used for supporting and fixing the first guide bar 31 at both ends of the first guide bar 31. The transmission member 3 includes: the first guide rod 31 and the second guide rod 32, the first guide rod 31 and the second guide rod 32 penetrate through the clamping plate 2, the clamping plate 2 is in sliding connection with the first guide rod 31 and the second guide rod 32, an elastic piece 33 is arranged between any two clamping plates 2, the elastic piece 33 is used for enabling any two clamping plates 2 to be subjected to driving external force close to each other to clamp a workpiece, and the elastic piece 33 is preferably a tension spring in the embodiment. The spring has two ends, one end of the spring is fixed with one clamping plate 2, and the other end of the spring is fixed with the other clamping plate 2 adjacent to the spring. The spring is sleeved on the first guide rod 31, when the spring is installed, the first guide rod 31 is firstly prepared, then one clamping plate 2 is placed, one spring is placed again, the spring is installed in a reciprocating mode, and when the spring is placed, the end portion of the spring is fixed with the clamping plate 2.

The support 4 comprises: the base 1 is provided with a sliding groove 44 for accommodating the sliding block 43, the sliding block 43 slides in the sliding groove 44, the first supporting plate 41 is slidably connected with the base 1, the second supporting plate 42 is connected with the first supporting plate 41, and the second supporting plate 42 and the first supporting plate 41 are slidably matched with the sliding groove 44 together through the sliding block 43. Thereby, it is achieved that the support 4 moves along a preset trajectory, wherein the slide 43 and the chute 44 are used for the preset trajectory. The first support plate 41 is provided with screw holes. The locking member 5 is provided on the support member 4, and the locking member 5 includes a locking screw 51 and an abutment plate 52. The abutting plate 52 is fixedly arranged on the base 1, and the locking screw rod 51 is in threaded connection with the screw hole. By rotating the screw rod, the screw rod can be displaced through the screw hole, the screw rod can be abutted against the abutting plate 52, the extrusion force between the screw rod and the abutting plate 52 can be increased by continuing to rotate the screw rod, and then the screw rod and the abutting plate 52 are fixed through extrusion, so that the first supporting plate 41 is fixed relative to the abutting plate 52, namely, the first supporting plate 41 is regulated relative to the base 1. It is thereby possible to realise a locking element 5 for locking after the support element 4 has been moved along a preset trajectory from a first position, in which it is remote from the workpiece, to a second position, in which it is close to the workpiece, in which it is positioned against the workpiece.

Specifically, the driving member 6 is provided at the support member 4, and the driving member 6 is used to move up and down the end of the first guide bar 31, thereby moving the clamping plate 2 from the first height position to the second height position. Wherein the first guide bar 31 and the second guide bar 32 are connected to the second support plate 42 by the connection structure 7. The driving member 6 is in this embodiment a trapezoidal screw, on which a trapezoidal nut is mounted on the second support plate 42, the trapezoidal nut being in threaded connection with the trapezoidal screw. The trapezoidal screw is provided with a hexagonal groove, and the trapezoidal screw can be rotated by a hexagonal wrench, so that the trapezoidal screw enables the second support plate 42 to move up and down relative to the first support plate 41 by the trapezoidal nut.

The connection structure 7 includes: the first connection base 71, the second connection base 72 and the rotation shaft 73, the rotation shaft 73 penetrates through the first connection base 71 and the second connection base 72, and the first connection base 71 and the second connection base 72 are connected in a rotation mode. The first connection seat 71 is fixed to the first guide bar 31 and the second guide bar 32, and the second connection seat 72 is fixed to the second support plate 42. Thereby realizing that both the first guide bar 31 and the second guide bar 32 are hinged with the second support plate 42.

Specifically, set up locating plate 8 on the base 1, be provided with the logical groove that runs through on the locating plate 8, set up the screw rod in the logical groove, offered on the base 1 with screw rod complex thread groove, locating plate 8 is close to base 1 until the screw rod contacts with the thread groove, then rotatory screw rod, through the screw rod with the relative base 1 locking of locating plate 8, locating plate 8 is to the upside location of work piece.

Specifically, the first guide bar 31 and the second guide bar 32 are provided in two groups along the first dimension; so that the support 4 is arranged two in the first dimension. The support 4 is also arranged in two along the second dimension, so that the support 4 is connected to both ends of the first guide bar 31. Wherein the first dimension is perpendicular to the second dimension.

The working flow is as follows: when the clamping device is used, a workpiece can be directly placed in the clamping chamber, then the workpiece is abutted with two clamping plates 2 forming the clamping chamber, then the workpiece is pressed downwards, the workpiece can be downwards moved into the clamping chamber, the clamping plates 2 clamp the workpiece from the zero side face of the workpiece, so that the workpiece is clamped, and the clamping of the workpiece is realized.

After the workpiece is installed, the locking screw rod 51 is rotated, the locking screw rod 51 is far away from the abutting plate 52, then the first supporting plate 41 can slide relative to the base 1, then the first supporting plate 41 is pushed by hands to slide on the base 1 through the sliding block 43 and the sliding groove 44, then the first supporting plate 41 drives the first guide rod 31 and the second guide rod 32 to slide through the second supporting plate 42, then the first guide rod 31 and the second guide rod 32 are close to the workpiece until the second guide rod 32 abuts against the end face of the workpiece, and therefore the end part of the workpiece is positioned. The locking screw is then rotated again, the locking screw being fixed with the first support plate 41 relative to the base 1, so that the second guide bar 32 and the second guide bar 32 are also fixed relative to each other.

In some cases, when the workpiece is oversized, the second supporting plate 42 can be moved upwards through the cooperation of the trapezoidal screw rod and the trapezoidal nut, so that the first guide rod 31 and the second guide rod 32 are driven to move upwards, and the clamping plate 2 clamps and positions the workpiece at different height positions.

Claims (7)

1. A multistation clamping anchor clamps, its characterized in that: comprising

A base formed with a positioning plane for positioning the workpiece;

the clamping plate is provided with a plurality of clamping plates which are all arranged above the positioning plane;

and the transmission piece is used for forming transmission among the plurality of baffles so as to form a clamping chamber with a variable space size between any two clamping plates.

2. The multi-station clamping fixture according to claim 1, wherein: the transmission member includes: a first guide bar and a second guide bar; the first guide rod and the second guide rod penetrate through the clamping plate, and the clamping plate is in sliding connection with the first guide rod and the second guide rod; an elastic piece is arranged between any two clamping plates and is used for enabling any two clamping plates to be subjected to driving external force from being close to each other to clamp a workpiece.

3. The multi-station clamping fixture according to claim 2, wherein: the fixture also comprises a supporting piece for supporting and fixing the first guide rod at two ends of the first guide rod; the support piece is provided with a locking piece, and the locking piece is used for locking after the support piece moves along a preset track from a first position far away from the workpiece to a second position close to the workpiece for positioning the workpiece.

4. A multi-station clamping fixture according to claim 3, wherein: the locking member includes: an abutment plate and a locking screw; the supporting piece is provided with a screw hole matched with the locking screw rod; the locking screw rod can be close to the abutting plate to move through rotation until the locking screw rod is in contact with the abutting plate, and the locking screw rod can be locked on the supporting piece through extrusion force.

5. The multi-station clamping fixture according to claim 4, wherein: the support member is provided with a driving member for moving the end of the first guide bar up and down to effect movement of the clamping plate from the first height position to the second height position.

6. The multi-station clamping fixture according to claim 5, wherein: the driving piece is connected with the end part of the first guide rod through a connecting structure; the connecting structure is used for realizing the hinging of the first guide rod relative to the support piece.

7. The multi-station clamping fixture according to claim 1, wherein: set up the locating plate on the base, be provided with the logical groove that runs through on the locating plate, set up the screw rod in the logical groove, offered on the base with screw rod complex thread groove, the locating plate is close to the base, until screw rod and thread groove contact, then rotatory screw rod locks the relative base of locating plate through the screw rod, and the locating plate is to the upside location of work piece.