CN217121859U

CN217121859U - Quick positioning composite clamp for pin shaft

Info

Publication number: CN217121859U
Application number: CN202121486663.0U
Authority: CN
Inventors: 唐家立; 邓明明; 秦晖; 唐爱华
Original assignee: Faldan State Beijing Great Automotive Components Co ltd
Current assignee: Faldan State Beijing Great Automotive Components Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-08-05
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a quick positioning composite clamp of a pin shaft, which comprises a bottom plate and a pressing plate A; the bottom of the bottom plate is provided with a fixed plate, and the top of the bottom plate is uniformly provided with a plurality of V-shaped grooves with the length matched with the pin shafts; a pin shaft is arranged in the V-shaped groove; the middle part of the pin shaft is provided with a pressing plate A which is movably connected with the bottom plate through a bolt; two ends of the pin shaft are respectively provided with positioning blocks for milling R grooves; one end of the positioning block for milling the R groove is movably connected with the bottom plate, and the other end of the positioning block is clamped into the flat square at the end part of the pin shaft. The utility model adopts the V-shaped groove, the pressing plate A and the milling R groove positioning block to carry out the limiting processing R groove on the pin shaft, the clamping is convenient, and the positioning is accurate, thereby effectively improving the processing precision; the I-shaped pressing plate B and the plane milling positioning block which are used for replacing the pressing plate A and milling the R groove positioning block in the next working step are added, the pin shaft is longitudinally and transversely limited, the sleeve combined clamp can flexibly clamp the pin shaft in the two steps of milling the R groove and the plane, and therefore the positioning is accurate, and the machining precision is effectively improved.

Description

Quick positioning composite clamp for pin shaft

Technical Field

The utility model belongs to the technical field of anchor clamps, concretely relates to quick location combined clamp of round pin axle.

Background

Parts of the pin shaft type and clamps before companies depend on a four-axis machining center for machining, but the four-axis machining efficiency is low. If the four-axis is not used, the clamp lacks the location of the rotation direction, so every clamping, the worker needs to manually correct the pin shaft, and a large amount of time is wasted in the link of manual correction. In addition, the old clamp is used for machining the R groove by using the ball cutter, the cutter is in a non-rotating state at the vertex of the ball cutter, and the cutter does not mill parts, so that a tool mark is formed at the vertex of the R groove of the machined pin shaft, and the appearance is not attractive. Because the pin shaft type parts are not large, the milling processing amount is small, the clamping time and the part processing time are almost the same, and the processing efficiency is low in unit time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a it is convenient to provide a clamping, fixes a position the accurate composite jig who accomplishes the round pin axle, and this composite jig can shorten the time of clamping, also can guarantee the precision of processing simultaneously.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a quick positioning composite clamp for a pin shaft comprises a bottom plate and a pressing plate A; the bottom of the bottom plate is provided with a fixed plate, and the top of the bottom plate is uniformly provided with a plurality of V-shaped grooves with the length matched with the pin shafts; a pin shaft is arranged in the V-shaped groove; the middle part of the pin shaft is provided with a pressing plate A, and the pressing plate A is movably connected with the bottom plate through a bolt; two ends of the pin shaft are respectively provided with positioning blocks for milling R grooves; one end of the positioning block for milling the R groove is movably connected with the bottom plate, and the other end of the positioning block is clamped into the flat square at the end part of the pin shaft.

As further technical improvement, the device also comprises an I-shaped pressing plate B and a plane milling positioning block which are used for replacing the pressing plate A and the R-shaped groove milling positioning block in the next working step; two ends of the pin shaft are respectively provided with a milling plane positioning block, one end of the milling plane positioning block is detachably connected with the bottom plate, and the other end of the milling plane positioning block clamps the end surface of the pin shaft; an arc positioning block is arranged between the pin shafts, the arc positioning block is clamped on the pin shafts to process an R groove in one step, the arc groove of the arc positioning block is matched with the arc of the R groove of the pin shafts, and the I-shaped pressing plate B is connected with the bottom plate through bolts to clamp the pin shafts and the arc positioning block respectively; and the two sides of the middle part of the I-shaped pressing plate B are respectively exposed out of the middle position of the pin shaft for processing the plane. After the R groove of the pin shaft is machined, the pressing plate A is disassembled and replaced by the I-shaped pressing plate B, the positioning block for milling the R groove is replaced by the positioning block for milling the plane, the positioning block for milling the R groove is used for clamping two end faces of the pin shaft, the arc positioning block is clamped in the R groove, and the pin shaft cannot rotate at the moment, so that the clamp can position the rotation direction of the pin shaft. The I-shaped pressing plate B avoids the position of the pin shaft to be machined, so that the clamp can complete the milling work of the platform on the side of the pin shaft.

As a further technical improvement, cushion blocks are respectively arranged at the bottom of two sides of the fixing plate, through holes are respectively arranged on the bottom plate and the fixing plate, and the through holes are just opposite to the positions, required for machining the R grooves, of the pin shafts. The cushion is with fixed plate and bottom plate bed hedgehopping to the bottom plate below is unsettled, and after the anchor clamps main part will sell the axle location and press from both sides tightly, the through-hole position is located the R groove department of required processing, and the iron fillings that milling process produced can be discharged through the through-hole, do not stay in the anchor clamps main part, avoid iron fillings to cause positioning error and workpiece surface damage.

As a further technical improvement, the number of the V-shaped grooves is 6, and the V-shaped grooves are consistent in distance and are parallel to each other.

As a further technical improvement, the cushion block is detachably connected with the fixing plate through a bolt.

The utility model discloses a use method:

the clamp main body is fixed on a workbench of a machine tool through bolts, the pin shaft is screwed down in the V-shaped groove through the bolts by the bottom plate and the pressing plate A, and the flat squares at the two ends of the pin shaft are respectively clamped into the R-shaped groove positioning blocks for positioning, so that the axial sliding or rotation of the pin shaft at the two ends in the machining process is prevented.

Compared with the prior art, the utility model has the advantages and beneficial effect as follows:

1. the utility model discloses an adopt V type groove, clamp plate A and mill R groove locating piece to carry out spacing processing R groove to the round pin axle, the clamping is convenient, thereby fixes a position the precision of accurate effective improvement processing.

2. The utility model adds the I-shaped pressing plate B and the plane milling positioning block for replacing the pressing plate A and the R-shaped groove milling positioning block in the next working step, limits the pin shaft longitudinally and transversely, simultaneously clamps the processed circular arc of the R-shaped groove through the circular arc positioning block, limits the rotation direction of the pin shaft, and effectively exposes the middle part of the pin shaft to be processed with the plane position of the I-shaped pressing plate B; the sleeve combined clamp can flexibly clamp the pin roll in the steps of milling the R groove and the plane, and the positioning is accurate, so that the machining precision is effectively improved.

Drawings

Fig. 1 is a top view of a clamping structure for milling an R-shaped groove on a pin shaft.

Fig. 2 is a front view of a clamping structure for milling an R-shaped groove on a pin shaft.

FIG. 3 is a side view of a clamping structure for milling an R groove on a pin shaft.

Fig. 4 is a top view of the clamping structure for milling a plane on the pin shaft.

Fig. 5 is a front view of the clamping structure for milling the plane of the pin shaft.

Figure 6 is a side view of the clamping structure with the pin milled flat.

FIG. 7 is a schematic structural view of a positioning block for milling an R-shaped groove being clamped into a flat square.

Fig. 8 is a schematic structural diagram of the arc positioning block being clamped into the R-shaped groove.

The attached drawings are as follows:

the method comprises the following steps of 1-base plate, 2-pressing plate A, 3-milling R groove positioning block, 4-pin shaft, 41-flat square, 5-fixing plate, 6-cushion block, 7-I-shaped pressing plate B, 8-arc positioning block, 9-milling plane positioning block and 10-R groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example (b):

a composite clamp for quickly positioning a pin shaft comprises a bottom plate 1 and a pressure plate A2; the bottom of the bottom plate 1 is provided with a fixed plate 5, and the top of the bottom plate is uniformly provided with a plurality of V-shaped grooves with the length matched with the pin shafts; a pin shaft 4 is arranged in the V-shaped groove; a pressure plate A2 is arranged in the middle of the pin shaft 4, and the pressure plate A2 is movably connected with the bottom plate 1 through a bolt; two ends of the pin shaft 4 are respectively provided with positioning blocks 3 for milling R grooves; one end of the positioning block 3 for milling the R groove is movably connected with the bottom plate 1, and the other end is clamped into the flat square 41 at the end part of the pin shaft 4.

The device also comprises an I-shaped pressing plate B7 and a milling plane positioning block 9 which are used for replacing the pressing plate A2 and milling the R groove positioning block 3 in the next working step; two ends of the pin shaft 4 are respectively provided with a milling plane positioning block 9, one end of the milling plane positioning block 9 is detachably connected with the bottom plate 1, and the other end clamps the end surface of the pin shaft 4; an arc positioning block 8 is arranged between the pin shafts 4, the arc positioning block 8 is clamped on the pin shafts 4 to form an R groove 10 in one step, the arc groove of the arc positioning block 8 is matched with the arc of the R groove 10 of the pin shafts 4, and the I-shaped pressing plate B7 is connected with the bottom plate 1 through bolts to clamp the pin shafts 4 and the arc positioning block 8 respectively; and the two sides of the middle part of the I-shaped pressing plate B7 are respectively exposed out of the middle position of the pin shaft 4 for processing a plane. After the R groove 10 of the pin shaft 4 is machined, the pressing plate A2 is detached and replaced by an I-shaped pressing plate B7, the R groove milling positioning block 3 is replaced by a plane milling positioning block 9, the plane milling positioning block 9 is used for clamping two end faces of the pin shaft 4, the arc positioning block 8 is clamped in the R groove 10, and at the moment, the pin shaft 4 cannot rotate, so that the clamp can position the pin shaft 4 in the rotating direction. The I-shaped pressing plate B7 avoids the position of the pin shaft to be processed, so that the clamp can complete the milling work of the platform on the side of the pin shaft 4.

Cushion blocks 6 are respectively arranged at the bottom of two sides of the fixing plate 5, through holes are respectively arranged on the bottom plate 1 and the fixing plate 5, and the through holes are just opposite to the positions, required to be processed, of the R grooves 10, of the pin shafts 4. The cushion is heightened with fixed plate 5 and bottom plate 1 to 1 below unsettled of bottom plate, and the anchor clamps main part will sell 4 location clamping of axle after, the through-hole position is located the R groove 10 departments of required processing, and the iron fillings that milling process produced can be discharged through the through-hole, do not stay in the anchor clamps main part, avoid iron fillings to cause positioning error and workpiece surface damage.

The V type groove be equipped with 6, V type groove interval unanimous, be parallel to each other.

The cushion block 6 is detachably connected with the fixing plate 5 through bolts.

The application method of the embodiment comprises the following steps:

the clamp main body is fixed on a workbench of a machine tool through bolts, the pin shaft is screwed in the V-shaped groove through the bolts by the bottom plate 1 and the pressure plate A2, the flat squares 41 at two ends of the pin shaft 4 are respectively clamped into the R groove 10 to be positioned, and the pin shaft 4 is prevented from sliding or rotating towards two ends in the machining process.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a compound anchor clamps of quick location of round pin axle which characterized in that: comprises a bottom plate (1) and a pressing plate A (2); the bottom of the bottom plate (1) is provided with a fixed plate (5), and the top of the bottom plate is uniformly provided with a plurality of V-shaped grooves with the length matched with the pin shafts; a pin shaft (4) is arranged in the V-shaped groove; the middle part of the pin shaft (4) is provided with a pressing plate A (2), and the pressing plate A (2) is movably connected with the bottom plate (1) through a bolt; two ends of the pin shaft (4) are respectively provided with positioning blocks (3) for milling R grooves; one end of the positioning block (3) for milling the R groove is movably connected with the bottom plate (1), and the other end of the positioning block is clamped into a flat square (41) at the end part of the pin shaft (4).

2. The quick positioning composite clamp for the pin shaft according to claim 1, characterized in that: the device also comprises an I-shaped pressing plate B (7) and a milling plane positioning block (9) which are used for replacing the pressing plate A (2) and the milling R groove positioning block (3) in the next working step; two ends of the pin shaft (4) are respectively provided with a milling plane positioning block (9), one end of the milling plane positioning block (9) is detachably connected with the bottom plate (1), and the other end clamps the end face of the pin shaft (4); an arc positioning block (8) is arranged between the pin shafts (4), the arc positioning block (8) is clamped on the pin shafts (4) to process an R groove (10), the arc groove of the arc positioning block (8) is matched with the arc of the R groove (10) of the pin shafts (4), and the I-shaped pressing plate B (7) is connected with the base plate (1) through bolts to clamp the pin shafts (4) and the arc positioning block (8) respectively; and the two sides of the middle part of the I-shaped pressing plate B (7) are respectively exposed out of the middle position of the pin shaft (4) for processing a plane.

3. The quick positioning composite clamp for the pin shaft according to claim 1, characterized in that: cushion blocks (6) are respectively arranged at the bottom of two sides of the fixing plate (5), through holes are respectively arranged on the base plate (1) and the fixing plate (5), and the through holes are over against the right lower part of the position of the pin shaft (4) where the R groove (10) needs to be processed.

4. The quick positioning composite clamp for the pin shaft according to claim 1, characterized in that: the V type groove be equipped with 6, V type groove interval unanimous, be parallel to each other.

5. The quick positioning composite clamp for the pin shaft according to claim 3, characterized in that: the cushion block (6) is detachably connected with the fixing plate (5) through bolts.