CN106312561A - Fixture for machining pin wheel hole of pin wheel housing - Google Patents

Abstract

The invention discloses a jig for processing needle holes in a gear housing, which comprises a gear housing positioning mechanism (1), the lower end of which is fixed with a first tooth disc (2); The upper end of the lower part of the mechanism (1) is fixed with a second toothed disc (4), and the upper end surface of the second toothed disc (4) is provided with an annular Teeth meshing; the lifting shaft (5) is slidably fitted in the seat body (3) and one end of it passes through the seat body (3) to the pin gear housing positioning mechanism (1) and is connected with the pin gear housing positioning mechanism (1) Axial limiting and circumferential rotation, and the transmission mechanism (6), connected with the lifting shaft (5) to push the pin gear housing positioning mechanism (1) to move upward until the pin gear housing positioning mechanism (1) can move along the lifting axis The central axis of the shaft (5) rotates. The advantage of the present invention is that the indexing holes machined on the pin tooth holes are evenly distributed.

Description

A jig for processing pin gear holes in pin gear shells

technical field

The invention relates to a jig for processing a pin tooth hole of a pin tooth shell.

Background technique

Cycloidal reducers are widely used due to their large speed reduction ratio, small size, light weight, and large load-carrying capacity. It has more meshing teeth than the involute gear at the same time, so the load capacity is greater than that of the involute gear reducer. Although it has many advantages in design, it has high precision and complicated processing, but it is really necessary to rely on a set of Perfect to ensure that the indexing accuracy of the indexing hole of the pin gear housing in the entire cycloidal reducer is evenly distributed, which will directly affect its performance. To achieve uniform load bearing force, when the load is too large, the teeth may be damaged. The accuracy of the indexing hole of the pin gear housing is relatively high, so the machining of the indexing hole of the pin tooth hole is one of the most critical processes. Among them, The indexing hole is used to cooperate with the pintooth pin, so it can also be called a pintooth hole. During the processing of the indexing hole of the pintooth hole, it is necessary to use the pintooth housing fixture to hold the pintooth housing through the fixture and then perform drilling. Hole operation, the existing fixture only has a simple clamping function, the fixture itself cannot drive the pintooth housing to rotate accurately according to the actual required angle, which will eventually lead to uneven distribution of the indexing holes of the pintooth hole, affecting the pintooth case performance, reducing the service life of the pin gear housing.

Contents of the invention

The technical problem to be solved by the present invention is to provide a jig for machining the pinhole of the pintooth housing, which can realize the precise rotation and positioning of the pintooth housing according to the actual required angle, so that The holes are evenly distributed.

In order to solve the above technical problems, the technical solution provided by this paper is: a pin gear hole processing jig, which includes a pin gear housing positioning mechanism, the lower end of which is fixed with a first tooth plate with a rotating scale mark on the surrounding wall; The body is placed under the positioning mechanism of the pin gear housing, and the upper end is fixed with a second toothed disc. The peripheral wall of the second toothed disc is provided with a 0 scale mark, and the upper end surface of the second toothed disc is provided with a The ring teeth on the lower end surface of the first toothed disc mesh; the lifting shaft is slidably fitted in the seat body and one end of it passes through the seat body into the pin gear housing positioning mechanism and is axially limited by the pin gear housing positioning mechanism Circumferential rotation, the rotation axis of the pin gear housing positioning mechanism, the pin gear housing rotation axis on the pin gear housing positioning mechanism, the rotation axis of the first toothed disc, the meshing circle axis of the first toothed disc and the meshing circle of the second toothed disc The axes are on the same straight line; and the transmission mechanism is connected with the lifting shaft and is used to push the pin gear housing positioning mechanism to move upward until the pin gear housing positioning mechanism can rotate along the central axis of the lifting shaft.

After adopting the above structure, compared with the prior art, the present invention has the following advantages: the pin gear housing that needs to be drilled and reamed is placed on the pin gear housing positioning mechanism and positioned by the pin gear housing positioning mechanism. The meshing between the gear plate and the first tooth plate of the pin gear housing positioning mechanism restricts the circumferential rotation of the pin gear housing positioning mechanism, and the drilling and reaming operation can be implemented through the drilling and reaming device. When the transmission mechanism works, it pushes the lifting shaft to move upwards and pushes the gear housing positioning mechanism to move upwards, triggering the failure of the engagement between the second gear plate of the seat body and the first gear disc of the pin gear housing positioning mechanism, so that the pin gear housing positioning mechanism can move up and down. The central axis of the shaft rotates in the circumferential direction, due to the rotation axis of the pinion housing positioning mechanism, the rotation axis of the pinion housing on the pinion housing positioning mechanism, the rotation axis of the first toothed disc, the meshing circle axis of the first toothed disc and the second The meshing circle axes of the toothed discs are on the same straight line; by rotating the first toothed disc by an angle according to the rotation scale mark, the positioning mechanism of the pin gear housing is also rotated by this angle, and the pin gear housing is also rotated by this angle, that is to say, Precise control of the rotation angle of the pin gear housing, and then with the help of the gravity of the pin gear housing positioning mechanism, the first gear plate of the pin gear housing positioning mechanism meshes with the second gear plate of the seat again, limiting the pin gear housing positioning mechanism The second hole drilling operation can be performed on the pin gear housing through the hole processing device, and so on until the actual required holes are drilled on the pin gear housing, and then each hole is drilled according to the same method as above. The drilled holes are reamed. After the above operations, the jig can rotate and position the pin gear housing accurately according to the actual angle required, so that the index holes processed on the pin gear holes are evenly distributed.

Further, the pin gear housing positioning mechanism includes a positioning shaft axially limited by one end and the lifting shaft, a positioning sleeve sleeved on the positioning shaft, and a positioning sleeve sleeved outside the upper end of the positioning sleeve and connected and fixed to the positioning sleeve. plate, the upper end of the positioning plate has a resting end surface for resting the pin gear housing, and the resting end face is provided with a boss for matching with the center hole of the pin gear housing, and the first gear plate is sleeved on the positioning sleeve The lower end of the lower end and the positioning sleeve are connected and fixed. The two sides of the positioning plate are provided with clamping components for clamping the pin-tooth housing placed on the resting end surface. The central axis of the lifting shaft, the rotation axis of the positioning sleeve, and the positioning The rotation axis of the plate and the rotation axis of the pin gear housing on the resting end face are on the same straight line, and the other end of the positioning shaft passes out of the positioning sleeve, and this end is provided with a pin tooth for auxiliary placement on the resting end face Tool guide positioning assembly for shell hole machining. The purpose of adopting such a design is to demonstrate the specific structure of the positioning mechanism of the pin gear housing, which is simple in structure, easy to manufacture, low in cost, realizes the unity of positioning references, and has a good positioning effect of the positioning pin gear housing.

Further, the clamping assembly includes a lower pressing plate, an upper abutting plate, an adjusting bolt and a supporting bolt; the lower pressing plate and the upper abutting plate are spaced apart up and down, wherein the adjusting bolts pass through the lower pressing plate and the upper abutting plate. The distance between the lower pressing plate and the upper supporting plate is used to adjust the distance between the supporting plates, and the support bolts are arranged between the lower pressing plate and the upper supporting plate. The purpose of adopting such a design is to demonstrate the specific structure of the clamping assembly, which helps to perform clamping operations on different types of pin gear housings for subsequent drilling operations.

Further, the end surface of the lower pressing plate near the upper abutting plate is provided with a lower convex part for clamping the pin gear housing; the end surface of the upper abutting plate near the lower pressing plate is provided with of the convex part. The purpose of adopting such a design is to help improve the clamping effect and assist drilling by providing a specific clamping portion.

Further, the tool guiding and positioning assembly includes a positioning ring sleeved on the outside of the positioning shaft, an auxiliary hole processing positioning block placed on the positioning ring and sleeved on the outside of the positioning shaft, and a positioning pin. The auxiliary hole processing positioning block has a The first positioning through hole that the positioning pin extends into, the second positioning through hole coaxial with the first positioning through hole is provided on the described positioning ring, and the positioning pin is penetrated through the first positioning through hole and the second positioning through hole. In the positioning through hole, the auxiliary hole processing positioning block has a first horizontal extension connected to the side, a vertical extension connected to the lower part and a second horizontal extension connected to the vertical extension; the second The first horizontal extension part and the second horizontal extension part are provided with coaxial through holes. The purpose of adopting this design is to show the specific structure of the tool guide and positioning assembly. The processing positioning block can be replaced to meet the processing requirements of different pin gear housing parts. Among them, it can ensure the coincidence accuracy of the drilling positioning hole and the reaming positioning hole, and can prevent the drill bit and reaming hole deviation during the drilling operation, and complete the integrated operation of drilling and reaming.

Further, one end of the positioning shaft passes out of the auxiliary hole processing positioning block, and a compression nut is screwed to the end, and a horizontal screw is threaded on the upper end of the compression nut. The purpose of adopting such a design is to facilitate the compression of the positioning block for auxiliary hole processing.

Further, one end of the horizontal screw is provided with a radial protruding ring. The purpose of adopting such a design is to prevent the horizontal screw from detaching from the compression nut.

Further, the base body includes a base, the second toothed disc is fixed on the base, the base is provided with a shaft hole for slidingly fitting with the lifting shaft, and the second toothed disc is provided with a Axis is provided for the sprocket hole that lifting shaft stretches out. The purpose of adopting such a design is to demonstrate the specific structure of the seat body, which is simple in structure and easy to manufacture.

Further, the transmission mechanism includes a rotating shaft passing through the base, a rotating handle connected to the end of the rotating shaft outside the base for driving the rotating shaft to rotate, and an eccentric wheel whose axis is fixedly connected to the rotating shaft; The upper part of the eccentric wheel can resist the lower end of the lifting shaft so that the lifting shaft moves upward. The purpose of adopting such a design is to demonstrate the specific structure of the transmission mechanism, which is simple in structure and easy to manufacture.

Further, one end of the lifting shaft protrudes from the hole of the toothed plate and extends deeply into the hole provided at the lower end of the positioning shaft and is connected with the positioning shaft, wherein the lifting shaft and the positioning shaft are coaxial. The purpose of adopting such a design is to ensure the pushing effect of the lifting shaft.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic structural view of the auxiliary hole machining positioning block of the present invention.

Fig. 3 is a view along the line A-A of Fig. 2 .

Fig. 4 is a schematic diagram of the structure of the pinion housing.

Fig. 5 is a B-B arrow view of Fig. 4 .

Described in the figure: 1, pin gear housing positioning mechanism; 101, positioning shaft; 102, positioning sleeve; 103, positioning plate; 1031, shelving end face; 1032, boss; , adjusting bolt; 1044, support bolt; 1045, lower convex part; 1046, upper convex part; 1051, positioning ring; 1052, auxiliary hole processing positioning block; 1053, positioning pin; Two positioning through holes; 1056, the first horizontal extension; 1057, the vertical extension; 1058, the second horizontal extension; 1059, the through hole; 2, the first tooth plate; 201, the rotation scale mark; ; 301, base; 302, shaft hole; 4, second toothed plate; 401, 0 scale mark; 5, lifting shaft; 6, transmission mechanism; 601, rotating shaft; 602, rotating handle; 603, eccentric wheel; Compression nut; 8, horizontal screw rod; 801, radial protruding ring.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a jig for processing the pin tooth hole of the pin gear shell according to the present invention, wherein the pin tooth hole is marked with a in Fig. 4 and Fig. 5, and the pin tooth hole The structure of the gear housing needle hole processing jig includes a pin gear housing positioning mechanism 1, the first tooth plate 2 with a rotating scale mark 201 on the peripheral wall is fixed at its lower end; Below its upper end is fixed with the second toothed disc 4, the peripheral wall of the second toothed disc 4 is provided with 0 scale mark 401, and the upper end surface of the described second toothed disc 4 is provided with for connecting with the first toothed disc 2. The ring gear on the lower end surface of the lower end face is engaged; the lifting shaft 5 is slidably fitted in the seat body 3 and one end thereof passes through the seat body 3 to the pin gear housing positioning mechanism 1 and is axially limited with the pin gear housing positioning mechanism 1 Circumferential rotation, the rotation axis of the pin gear housing positioning mechanism 1, the pin gear housing rotation axis on the pin gear housing positioning mechanism 1, the rotation axis of the first gear disc 2, the meshing circle axis of the first gear disc 2 and the second tooth The axis of the meshing circle of the disk 4 is on the same straight line; and the transmission mechanism 6 is connected with the lifting shaft 5 to push the pin gear housing positioning mechanism 1 to move upward until the pin gear housing positioning mechanism 1 can move along the central axis of the lifting shaft 5 turn.

The pin gear housing positioning mechanism 1 includes a positioning shaft 101 axially limited by one end and the lifting shaft 5, a positioning sleeve 102 sleeved on the positioning shaft 101, and a positioning sleeve 102 sleeved on the upper end of the positioning sleeve 102 and connected to the positioning sleeve 102. Connect and fix the positioning plate 103, the upper end of the positioning plate 103 has a resting end surface 1031 for resting the pin-tooth case, and the resting end face 1031 is provided with a boss 1032 for cooperating with the center hole of the pin-tooth case. The first toothed disc 2 is sleeved outside the lower end of the positioning sleeve 102 and the positioning sleeve 102 is connected and fixed, wherein the central axis of the lifting shaft 5, the rotation axis of the positioning sleeve 102, the rotation axis of the positioning plate 103 and the resting end surface 1031 The axes of rotation of the pinion housings are on the same straight line.

Both sides of the positioning plate 103 are provided with a clamping assembly for clamping the gear housing placed on the end surface 1031, wherein the clamping assembly includes a lower pressing plate 1041, an upper abutting plate 1042, an adjusting bolt 1043 and a supporting bolt 1044 The lower pressing plate 1041 and the upper abutting plate 1042 are spaced up and down, wherein the adjusting bolt 1043 is inserted between the lower pressing plate 1041 and the upper abutting plate 1042 for adjusting the lower pressing plate 1041 and the upper abutting plate 1042 The supporting bolt 1044 is arranged between the lower pressing plate 1041 and the upper abutting plate 1042; the end surface of the lower pressing plate 1041 near the upper abutting plate 1042 is provided with a lower convex portion 1045 for clamping the pin gear housing; An upper protrusion 1046 for clamping the pin gear housing is provided on the end surface of the upper resisting plate 1042 near the lower pressing plate 1041 .

The other end of the positioning shaft 101 passes out of the positioning sleeve 102 and is provided with a tool guiding and positioning assembly for assisting in the processing of the pin gear housing hole placed on the resting end surface 1031, wherein the tool guiding and positioning assembly It includes a positioning ring 1051 set outside the positioning shaft 101, an auxiliary hole processing positioning block 1052 and a positioning pin 1053 placed on the positioning ring 1051 and set outside the positioning shaft 101, and the auxiliary hole processing positioning block 1052 has a positioning pin for positioning 1053 into the first positioning through hole 1054, the positioning ring 1051 is provided with a second positioning through hole 1055 coaxial with the first positioning through hole 1054, the positioning pin 1053 is set through the first positioning through hole In the hole 1054 and the second positioning through hole 1055, the auxiliary hole processing positioning block 1052 has a first horizontal extension 1056 connected to the side, a vertical extension 1057 connected to the lower part, and a vertical extension 1057 connected to the vertical extension 1057. The second horizontal extension 1058; the first horizontal extension 1056 and the second horizontal extension 1058 are provided with a coaxial through hole 1059; one end of the positioning shaft 101 passes through the auxiliary hole processing positioning block 1052 And this end is screwed with a compression nut 7 , the upper end of the compression nut 7 is pierced with a horizontal screw 8 ; one end of the horizontal screw 8 is provided with a radial protruding ring 801 .

The seat body 3 includes a base 301, the second toothed disc 4 is fixed on the base 301, the base 301 is provided with a shaft hole 302 for slipping with the lifting shaft 5, and the second toothed disc 4 is provided with There is a sprocket hole coaxial with the shaft hole 302 for the elevating shaft 5 to protrude; the transmission mechanism 6 includes a rotating shaft 601 pierced in the base 301, and is used for connecting with the end of the rotating shaft 601 placed outside the base 301 The rotating handle 602 that drives the rotating shaft 601 to rotate and the eccentric wheel 603 whose axis is connected to the rotating shaft 601 are fixed; the top of the eccentric wheel 603 can be offset against the lower end of the lifting shaft 5 to cause the lifting shaft 5 to move upward; One end of the shaft 5 protrudes from the hole of the gear plate and extends deeply into the hole provided at the lower end of the positioning shaft 101 and is connected with the positioning shaft 101 , wherein the lifting shaft 5 and the positioning shaft 101 are coaxial.

The working principle of the present invention: place the pin gear housing that needs to be drilled and reamed on the pin gear housing positioning mechanism 1 and position it through the pin gear housing positioning mechanism. The meshing of the first toothed plate 2 restricts the circumferential rotation of the pin gear housing positioning mechanism, and the drilling and reaming operation can be implemented through the drilling and reaming device. After another drilling operation, the transmission mechanism 6 works to promote the lifting The shaft 5 moves upwards and pushes the gear housing positioning mechanism 1 to move upwards, triggering the engagement of the second gear plate 4 of the base body 3 with the first gear disc 2 of the gear housing positioning mechanism 1, causing the gear housing positioning mechanism 1 to move up and down. The central axis of the shaft rotates in the circumferential direction, due to the rotation axis of the pin gear housing positioning mechanism 1, the pin gear housing rotation axis on the pin gear housing positioning mechanism 1, the rotation axis of the first toothed disc 2, and the meshing circle of the first toothed disc 2 The axis and the meshing circle axis of the second toothed disc 4 are on the same straight line; by rotating the first toothed disc 2 by an angle according to the rotation scale, the pin gear housing positioning mechanism 1 also rotates by this angle, and the pin gear housing also rotates accordingly. This angle, that is, realizes the precise control of the rotation angle of the pin gear housing. Then, with the help of the gravity of the pin gear housing positioning mechanism 1, the first tooth plate 2 of the pin gear housing positioning mechanism 1 is reconnected with the second tooth of the seat body 3. The meshing of disc 4 restricts the circumferential rotation of the pin gear housing positioning mechanism, and the second hole drilling operation can be performed on the pin gear housing through the hole processing device, and so on until the actual required drilling is completed on the pin gear housing. For the hole, pull out the positioning pin 1053, turn the auxiliary hole processing positioning block 1052, align the reaming positioning hole of the auxiliary hole processing positioning block 1052 with the drilled hole, and then carry out the same method for each drilled hole after use. Reaming operation, after the above operations, the fixture can realize the precise rotation and positioning of the pin tooth housing according to the actual required angle, and use the positioning block to accurately position and guide the tool, so that the indexing holes processed on the pin tooth hole are evenly distributed , Position accuracy and dimensional accuracy are accurate, ensuring the machining accuracy of the pin holes on the pin gear housing, resulting in better performance of the pin gear housing and high service life of the pin gear housing.

To sum up, it can be seen that the fixture of the present invention can realize the processing and positioning of the pin gear housing, accurately rotate and position according to the actual required angle, use the positioning block to position and guide the tool, and realize workpiece clamping, workpiece indexing positioning, The unification of tool guiding and positioning functions ensures the indexing accuracy and dimensional accuracy of the indexing holes machined on the needle tooth holes.

The above are only descriptions of the preferred embodiments of the present invention, but should not be construed as limiting the claims. The present invention is not limited to the above embodiments, and all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims (10)

1. a pin wheel housing pin perforation clamp for machining, it is characterised in that: it includes

Pin wheel housing detent mechanism (1), its lower end is fixed with perisporium and is provided with the first fluted disc (2) rotating scale sign (201)；

Pedestal (3), its upper end, lower section being placed in pin wheel housing detent mechanism (1) is fixed with the second fluted disc (4), described second fluted disc (4) perisporium be provided with 0 scale indicate (401), the upper surface of described second fluted disc (4) be provided with for described first fluted disc (2) the annular tooth engagement on lower surface；

Lifting shaft (5), is snug fit in pedestal (3) and its one end passes in pedestal (3) extremely described pin wheel housing detent mechanism (1) And circumferentially rotate with pin wheel housing detent mechanism (1) axial limiting, the pivot center of pin wheel housing detent mechanism (1), pin wheel housing position Pin wheel housing pivot center, the pivot center of the first fluted disc (2), the engagement circular shaft line of the first fluted disc (2) and in mechanism (1) The engagement circular shaft line of two fluted discs (4) is on the same line；

With drive mechanism (6), it is connected with lifting shaft (5) for promoting pin wheel housing detent mechanism (1) to be move upwardly until described pin Tooth shell detent mechanism (1) can rotate along the axis of lifting shaft (5).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 1, it is characterised in that: described pin wheel housing localization machine The positioning sleeve that structure (1) includes the locating shaft (101) with one end and lifting shaft (5) axial limiting, is set on locating shaft (101) And be set in outside the upper end of positioning sleeve (102) and be connected fixing location-plate (103), described location with positioning sleeve (102) (102) The upper end of plate (103) has shelves end face (1031) for shelve pin wheel housing, described in shelve end face (1031) be provided with for The boss (1032) coordinated with the centre bore of pin wheel housing, described first fluted disc (2) is sheathed on outside the lower end of positioning sleeve (102) and fixed Position set (102) connects fixing, and the both sides of described location-plate (103) are provided with and are placed in, for clamping, the pin tooth shelved on end face (1031) The clamp assembly of shell, the axis of described lifting shaft (5), the pivot center of positioning sleeve (102), the rotary shaft of location-plate (103) Line is on same straight line with the pivot center of the pin wheel housing shelved on end face (1031),

The other end of described locating shaft (101) passes described positioning sleeve (102), and outward and this end is provided with to be placed in for auxiliary and shelves The cutter guide-localization assembly of the pin wheel housing hole machined on end face (1031).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 2, it is characterised in that: described clamp assembly includes Lower platen (1041), upper follow block (1042), regulation bolt (1043) and bolt (1044)；Described lower platen (1041) is with upper Follow block (1042) become between the upper and lower every setting, wherein, described regulation bolt (1043) be arranged in described lower platen (1041) with on support Being used for the spacing regulating lower platen (1041) with upper follow block (1042) between plate (1042), described bolt (1044) is located at down Between pressing plate (1041) and upper follow block (1042).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 3, it is characterised in that: described lower platen (1041) That end face of nearly upper follow block (1042) is provided with the lower protuberance (1045) for clamping pin wheel housing；Described upper follow block (1042) is near That end face of lower platen (1041) is provided with the upper convex portion (1046) for clamping pin wheel housing.

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 2, it is characterised in that: described cutter guide-localization Assembly includes being set in the outer locating ring (1051) of locating shaft (101), is placed on locating ring (1051) and is set in locating shaft (101) Outer via hole locating and machining block (1052) and alignment pin (1053), described via hole locating and machining block (1052) has for fixed The first positioning through hole (1054) that position pin (1053) is stretched into, it is same that described locating ring (1051) is provided with the first positioning through hole (1054) Second positioning through hole (1055) of axis, described alignment pin (1053) is arranged in described first positioning through hole (1054) and second to be determined In position through hole (1055), described via hole locating and machining block (1052) has the first horizontal extension being connected on sidepiece (1056) the vertical extension (1057), being connected to bottom and the second horizontal extension being connected with vertical extension (1057) (1058)；Described first horizontal extension (1056) and the second horizontal extension (1058) are provided with the through hole of coaxial line (1059).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 5, it is characterised in that: described locating shaft (101) One end pass to via hole locating and machining block (1052) that outward and this end is bolted with a clamp nut (7), described clamp nut (7) Upper end be equipped with horizontal screw bolt (8).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 6, it is characterised in that: described horizontal screw bolt (8) One end be provided with radial convex loop (801).

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 2, it is characterised in that: described pedestal (3) includes Base (301), described second fluted disc (4) is fixed on base (301), described base (301) be provided with for lifting shaft (5) The axis hole (302) of sliding fit, described second fluted disc (4) is provided with the fluted disc stretched out with axis hole (302) coaxial line for lifting shaft (5) Hole.

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 8, it is characterised in that: described drive mechanism (6) It is placed in base (301) that one end outward including the rotary shaft (601) being arranged in base (301) with rotary shaft (601) and is connected use The eccentric fixed it is connected with rotary shaft (601) in the turning handle (602) driving rotary shaft (601) to rotate and its axle center (603)；The top of described eccentric (603) can offset with the lower end of lifting shaft (5) and cause lifting shaft (5) to move up.

A kind of pin wheel housing pin perforation clamp for machining the most according to claim 8, it is characterised in that: described lifting shaft (5) One end is stretched out and is deeply stretched to outside fluted disc hole be connected in the hole that the lower end of described locating shaft (101) is provided with and with locating shaft (101), its In, described lifting shaft (5) and locating shaft (101) coaxial line.