Grinding clamp capable of machining multiple cylindrical pins simultaneously

Abstract

The utility model discloses a grinding clamp for simultaneously machining multiple cylindrical pins, belongs to the technical field of metal grinding machining clamps, and is used for machining the end faces of the cylindrical pins. According to the technical scheme, a middle fixing seat is a cuboid steel block, the height of the steel block is smaller than the length of a cylindrical pin, a plurality of vertical V-shaped grooves are sequentially formed in the two sides of the cuboid steel block of the middle fixing seat respectively, the depth of the V-shaped grooves is matched with the radius of the cylindrical pin, and horizontal fixing holes are formed in the positions, between every two adjacent V-shaped grooves, of the middle fixing seat respectively. The clamping plates are square plates, the height of the clamping plates is matched with the height of the middle fixing base, the multiple clamping plates are clamped on the two sides of the middle fixing base respectively, bolt holes are formed in the middle positions of the plate faces of the multiple clamping plates respectively, and the multiple clamping plates are fixedly connected with the two sides of the middle fixing base through the multiple fixing bolts. The cylindrical pin machining device is simple in structure, convenient to use and capable of machining a plurality of cylindrical pins at the same time, the cylindrical pins cannot loosen, incline and fall off, machining quality is guaranteed, and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of grinding clamps for machining the end face of cylindrical pin, belong to metal grinding fixture technical field. BACKGROUND

[0002] Cylindrical pin is the component of gearbox mechanism, and the two end faces of cylindrical pin need to be ground, finally ensuring the requirements of size 64±0.1, parallelism 0.02 and perpendicularity 0.02. The traditional processing method is to use two simple iron hoops to fix multiple cylindrical pins with diameter Φ12.5 as a whole, and then place them on a grinding machine to grind the two end faces of cylindrical pins. During the grinding process, the cylindrical pins are prone to loosen and tilt, resulting in size out-of-tolerance after processing, which cannot meet the technical requirements of the drawing. To solve this problem, a square positioning special fixture is designed by technical personnel. However, during the processing, the cylindrical pins may still occasionally loosen and tilt, and the size after processing is still out-of-tolerance, which cannot meet the technical requirements of the drawing. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a grinding clamp for simultaneously processing multiple cylindrical pins. This grinding clamp can simultaneously process multiple cylindrical pins, and the cylindrical pins will not loosen, tilt or fall off during the processing, which can ensure the processing quality of the cylindrical pins, improve the processing efficiency and meet the production schedule requirements.

[0004] The technical solution to solve the above technical problems is as follows:

[0005] A grinding clamp for simultaneously processing multiple cylindrical pins, comprising a middle fixed seat, a clamping plate and a fixed bolt. The middle fixed seat is a rectangular steel block, and the height of the steel block is less than the length of the cylindrical pin. There are multiple vertical V-shaped grooves arranged in sequence on both sides of the rectangular steel block of the middle fixed seat. The multiple V-shaped grooves are evenly distributed along the length direction of the middle fixed seat. The opening width of the V-shaped groove is greater than the diameter of the cylindrical pin, and the depth of the V-shaped groove matches the radius of the cylindrical pin. There are horizontal fixing holes on the middle fixed seat between the adjacent two V-shaped grooves. The diameter of the fixing hole matches the diameter of the fixed bolt. The clamping plate is a square plate, and the height of the clamping plate matches the height of the middle fixed seat. Multiple clamping plates are clamped on both sides of the middle fixed seat. There are bolt holes in the middle position of the plate surface of the multiple clamping plates. The bolt holes of the multiple clamping plates are opposite to the fixing holes on both sides of the middle fixed seat. Multiple fixed bolts pass through the bolt holes of the multiple clamping plates and the fixing holes of the middle fixed seat to fixedly connect the multiple clamping plates and both sides of the middle fixed seat. The plate surface of the clamping plate on both sides of the bolt hole of the multiple clamping plates is opposite to the two V-shaped grooves.

[0006] The plurality of V-shaped grooves on both sides of the intermediate fixing base can respectively place the cylindrical pins, the plurality of clamping plates are fixedly connected on both sides of the intermediate fixing base through the fixing bolts, the plate surface of the plurality of clamping plates tightly fixes the cylindrical pins in the V-shaped grooves of the intermediate fixing base, and the intermediate fixing base placed on the machine tool can grind the two ends of the cylindrical pins.

[0007] The plurality of V-shaped grooves on both sides of the intermediate fixing base can respectively place the cylindrical pins, the plurality of clamping plates are fixedly connected on both sides of the intermediate fixing base through the fixing bolts, the plate surface of the plurality of clamping plates tightly fixes the cylindrical pins in the V-shaped grooves of the intermediate fixing base, and the intermediate fixing base placed on the machine tool can grind the two ends of the cylindrical pins.

[0008] The beneficial effects of the utility model are as follows:

[0009] The plurality of V-shaped grooves on both sides of the intermediate fixing base can respectively place the cylindrical pins, the plurality of clamping plates are fixedly connected on both sides of the intermediate fixing base through the fixing bolts, the plate surface of the plurality of clamping plates tightly fixes the cylindrical pins in the V-shaped grooves of the intermediate fixing base, and the intermediate fixing base placed on the machine tool can grind the two ends of the cylindrical pins.

[0010] The utility model has the advantages of simple structure, convenient use, simultaneous processing of multiple cylindrical pins, no loosening, tilting and falling of the cylindrical pins in the processing process, guaranteed processing quality of the cylindrical pins, improved processing efficiency and satisfied production progress requirement. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the utility model;

[0012] Figure 2 It is the front view of Figure 1 ;

[0013] Figure 3 It is the side view of Figure 1 ;

[0014] Figure 4 It is the plan view of Figure 1 ;

[0015] Figure 5 It is the front view of the intermediate fixing base;

[0016] Figure 6 It is the A-A section view of Figure 5 ;

[0017] Figure 7 It is the B-B section view of Figure 5 .

[0018] The signs in the drawing are as follows: intermediate fixing base 1, clamping plate 2, fixing bolt 3, V-shaped groove 4, cylindrical pin 5, fixing hole 6, lightening hole 7. DETAILED DESCRIPTION

[0019] The utility model discloses a middle fixed seat 1, clamping plate 2, fixed bolt 3 are formed.

[0020] Figure 5 、 6 , 7 shows, the middle fixed seat 1 is cuboid steel block, and the height of steel block is less than the length of cylindrical pin 5, and the both sides of cuboid steel block of middle fixed seat 1 are sequentially arranged with multiple vertical V-shaped grooves 4 respectively, and multiple V-shaped grooves 4 are evenly distributed along the length direction of middle fixed seat 1, and V-shaped groove 4 is ninety-degree right-angle groove, and the opening width of V-shaped groove 4 is greater than the diameter of cylindrical pin 5, and the depth of V-shaped groove 4 is matched with the radius of cylindrical pin 5. V-shaped groove 4 is used for placing cylindrical pin 5, and cylindrical pin 5 is positioned.

[0021] Figure 5 、 6 , 7 shows, and there are horizontal fixed holes 6 on the middle fixed seat 1 between the adjacent two V-shaped grooves 4 respectively, and fixed hole 6 is used for connecting clamping plate 2. There are multiple lightening holes 7 between the upper end surface and the lower end surface of the cuboid steel block of middle fixed seat 1, and multiple lightening holes 7 are sequentially arranged along the length direction of middle fixed seat 1, and multiple lightening holes 7 are located between multiple V-shaped grooves 4 respectively, and lightening hole 7 can reduce the weight of middle fixed seat 1 under the premise of not affecting the strength of middle fixed seat 1, facilitating the use of middle fixed seat 1.

[0022] Figure 1 、 2 , 3, 4 show, and clamping plate 2 is square plate, and the height of clamping plate 2 is matched with the height of middle fixed seat 1, and multiple clamping plates 2 are clamped on the both sides of middle fixed seat 1 respectively, and multiple clamping plates 2 have bolt holes on the middle position of the plate surface respectively, and the bolt holes of multiple clamping plates 2 are opposite to the fixed holes 6 on the both sides of middle fixed seat 1 respectively, and multiple fixed bolts 3 are respectively passed through the bolt holes of multiple clamping plates 2 and the fixed holes 6 of middle fixed seat 1 to fixedly connect multiple clamping plates 2 with the both sides of middle fixed seat 1.

[0023] Figure 1 、 2 , 3, 4 show, and the plate surface of the both sides of the bolt hole of multiple clamping plates 2 is opposite to two V-shaped grooves 4 respectively, and cylindrical pin 5 is placed in V-shaped groove 4, and the plate surface of clamping plate 2 is pressed on the surface of cylindrical pin 5, and cylindrical pin 5 is fixed in V-shaped groove 4.

[0024] Figure 1The plurality of cylindrical pins 5 are respectively arranged in the V-shaped grooves 4 on both sides of the middle fixed seat 1, the plurality of clamping plates 2 are fixedly connected with the middle fixed seat 1 through the fixing bolts 3, the plate surfaces on both sides of the plurality of clamping plates 2 are respectively pressed on the surfaces of the plurality of cylindrical pins 5, the plurality of cylindrical pins 5 are fixed in the V-shaped grooves 4, the two end surfaces of the plurality of cylindrical pins 5 are respectively higher than the top surfaces of the middle fixed seat 1 and the clamping plates 2, and the middle fixed seat 1 is arranged on a machine tool, so that the machine tool can perform grinding processing on the end surfaces of the plurality of cylindrical pins 5.

[0025] One embodiment of the utility model is as follows:

[0026] The length of the middle fixed seat 1 is 260 mm, the width is 31.5 mm, the height is 56 mm, the width of the V-shaped groove 4 is 18.5 mm, the diameter of the fixing hole 6 is 8 mm, and the diameter of the weight-reducing hole 7 is 16 mm;

[0027] The length of the clamping plate 2 is 55 mm, the width is 55 mm, the thickness is 10 mm, and the diameter of the bolt hole is 8 mm;

[0028] The diameter of the fixing bolt 3 is 8 mm, and the length is 36.4 mm;

[0029] The diameter of the cylindrical pin 5 is 12.5 mm, and the length is 64 mm.

Claims

1. A grinding jig for simultaneously machining a plurality of cylindrical pins, characterized by: It includes intermediate fixed seat (1), clamping plate (2), fixed bolt (3), intermediate fixed seat (1) is cuboid steel block, the height of steel block is less than the length of cylindrical pin (5), the two sides of cuboid steel block of intermediate fixed seat (1) are sequentially arranged with multiple vertical V-shaped grooves (4), multiple V-shaped grooves (4) are uniformly distributed along the length direction of intermediate fixed seat (1), the opening width of V-shaped groove (4) is greater than the diameter of cylindrical pin (5), the depth of V-shaped groove (4) is matched with the radius of cylindrical pin (5), the intermediate fixed seat (1) between adjacent two V-shaped grooves (4) is respectively provided with horizontal fixed hole (6), the diameter of fixed hole (6) is matched with the diameter of fixed bolt (3), clamping plate (2) is square plate, the height of clamping plate (2) is matched with the height of intermediate fixed seat (1), multiple clamping plates (2) are respectively clamped on the two sides of intermediate fixed seat (1), multiple clamping plates (2) are respectively provided with bolt hole in the middle position of plate surface, multiple bolt holes of clamping plate (2) are respectively opposite to the fixed holes (6) on the two sides of intermediate fixed seat (1), multiple fixed bolts (3) are respectively passed through the bolt holes of multiple clamping plates (2) and the fixed holes (6) of intermediate fixed seat (1) to fixedly connect multiple clamping plates (2) and the two sides of intermediate fixed seat (1), the plate surface of clamping plate (2) on the two sides of the bolt hole of multiple clamping plates (2) is respectively opposite to two V-shaped grooves (4).

2. The grinding jig for simultaneously machining a plurality of cylindrical pins according to claim 1, characterized by: The fixed hole (6) of the cuboid steel block of the intermediate fixed seat (1) is in two rows, the two rows of fixed holes (6) are vertically opposite, the bolt hole of multiple clamping plates (2) is two, the two bolt holes are arranged in two rows, and the two bolt holes of multiple clamping plates (2) correspond to the two rows of fixed holes (6) of intermediate fixed seat (1) respectively.

3. The grinding jig for simultaneously machining a plurality of cylindrical pins according to claim 1, characterized by: The cuboid steel block of the intermediate fixed seat (1) has multiple vertical lightening holes (7) between the upper end face and the lower end face, multiple lightening holes (7) are sequentially arranged along the length direction of intermediate fixed seat (1), and multiple lightening holes (7) are respectively located between multiple V-shaped grooves (4).

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