A fixture for integrated milling, drilling and tapping processing equipment

Abstract

The present invention provides a fixture for integrated milling, drilling and tapping processing equipment, which relates to the technical field of fixtures for processing shaft workpieces. It includes two groups of clamping mechanisms and four groups of mobile drive mechanisms, each group of clamping mechanisms includes two clamping units that can cooperate with each other to clamp, the mobile drive mechanism drives the first group of clamping mechanisms and the second group of clamping mechanisms to move away from each other, the second group of clamping mechanisms moves relative to the shaft workpiece toward the end to be polished flat, the friction between the outer surface of the shaft workpiece and the driving roller of the second group of clamping mechanisms will make the driving roller overcome the action of the third driving spring and move axially relative to the second center axis, the end of the rod grinder abuts against the inclined surface block, and the inclined surface block drives the tool head of the rod grinder to extend out of the guide hole to grind the outer surface of the shaft workpiece. The fixture for integrated milling, drilling and tapping processing equipment can grind the outer surface of the shaft workpiece while clamping the shaft workpiece, thereby improving the clamping and positioning accuracy during milling, drilling and tapping processing.

Description

Technical Field

[0001] The invention relates to a shaft workpiece machining fixture, in particular to a fixture for milling, drilling and tapping integrated machining equipment. Background Art

[0002] The integrated milling, drilling and tapping processing equipment is a processing equipment that integrates milling, drilling and tapping. It has an automatic non-standard power head, fast tool change, simple point alignment, and the product can be processed in one time. During processing, it is necessary to use a fixture to clamp the shaft workpiece, and then use the milling, drilling and tapping tools to perform corresponding processing operations on the clamped shaft parts. In the existing integrated milling, drilling and tapping processing equipment, when processing shaft workpieces, the outer surface roughness of the shaft is relatively high when the fixture is clamped, resulting in the overall fixture clamping positioning is not accurate enough. If you want a precise clamping state, you need to add another grinding process or require manual operation. The process is cumbersome and the effect is not good. Therefore, it is necessary to design a fixture for integrated milling, drilling and tapping processing equipment, which can clamp shaft workpieces and grind the outer surface of shaft workpieces at the same time, thereby improving the clamping and positioning accuracy during milling, drilling and tapping processing.

[0003] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] Based on this, it is necessary to provide a fixture for milling, drilling and tapping integrated processing equipment to address the problems existing in the current fixtures for milling, drilling and tapping integrated processing equipment.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A fixture for integrated milling, drilling and tapping processing equipment, the fixture for integrated milling, drilling and tapping processing equipment comprising two groups of clamping mechanisms and four groups of mobile drive mechanisms, the clamping mechanism comprising two clamping units capable of clamping each other in cooperation, the two clamping units being arranged symmetrically about the structural axis, the clamping units located on the same side of the two groups of clamping mechanisms being slidably mounted on the same sliding track, and the four groups of mobile drive mechanisms being used for correspondingly driving the four clamping units to move along the sliding track;

[0007] The clamping unit comprises a sliding block, the sliding block is slidably mounted on the sliding rail, the sliding block is provided with a supporting plate, the supporting plate is provided with a clamping drive assembly, the clamping drive assembly is provided with a mounting seat, the clamping drive assembly is used to drive the mounting seat to approach or move away from another matching clamping unit, the mounting seat is provided with a mounting frame, the mounting frame is provided with a rotating driving member, the output shaft of the rotating driving member is provided with a driving gear, the mounting frame is also rotatably provided with two first driven gears, the driving gear can respectively drive the two first driven gears to rotate;

[0008] A hinge shaft is provided on the mounting frame at a side facing away from the other clamping mechanism, a first hinge rod and a second hinge rod are hinged on the hinge shaft, and a torsion spring is provided on the hinge shaft, the torsion spring can drive the first hinge rod and the second hinge rod to approach each other, a first central shaft is provided at the ends of the first hinge rod and the second hinge rod, a fixedly connected limit gear and an abutting roller are fixedly mounted on the first central shaft, the limit gear can mesh with the first driven gear, two second central shafts are provided on the mounting frame at a side close to the other clamping mechanism, a fixedly connected second driven gear and a driving roller are rotatably mounted on the second central shaft, and the second driven gear meshes with the first driven gear;

[0009] A third driving spring is sleeved on the second center shaft, and a sloped stop block is provided on the outer side wall of the second center shaft. A guide hole extending radially is provided in the driving roller, a rod mold is installed in the guide hole, and a fourth driving spring is sleeved on the outer side of the rod mold. When the driving roller overcomes the action of the third driving spring and moves axially relative to the second center shaft, the end of the rod mold abuts against the sloped stop block, and the sloped stop block can drive the tool head of the rod mold to extend out of the guide hole.

[0010] As a further improvement of the above technical solution:

[0011] Further, a mounting cavity is provided in the second central shaft, a limiting hole is provided in the side wall of the second central shaft, a first driving spring is installed in the mounting cavity, the first driving spring is connected to an abutting column, a limiting column is installed in the limiting hole, a second driving spring is sleeved on the limiting column, an outer side wall of the abutting column abuts against an end inclined surface of the limiting column, and a limiting ring groove is provided in the inner side wall of the driving roller;

[0012] When the first center axis and the second center axis are disengaged, the first driving spring drives the abutment column to extend, so that the outer wall of the abutment column drives the limiting column to extend to the limiting ring groove to limit the axial movement of the driving roller along the second center axis; when the first center axis and the second center axis are coaxially abutted, the abutment column compresses the first driving spring, and the second driving spring drives the limiting column to retract from the limiting ring groove.

[0013] Furthermore, the mobile driving mechanism includes a driving motor and a driving screw, the driving motor can drive the driving screw to rotate, the driving screw is arranged parallel to the sliding track, a driving threaded sleeve is provided on the support plate, and the driving threaded sleeve is sleeved on the driving screw, and the rotation of the driving screw can drive the clamping unit to move along the sliding track.

[0014] Furthermore, the clamping drive assembly includes a clamping motor, a clamping screw and a guide rod, the clamping motor and the guide rod are both installed on the support plate, the clamping screw is installed on the output shaft of the clamping motor, and the mounting seat is provided with a clamping threaded sleeve and a guide sleeve, the clamping threaded sleeve is sleeved on the clamping screw, and the guide sleeve is sleeved on the guide rod, and the rotation of the clamping screw can drive the mounting seat to move along the guide rod.

[0015] Furthermore, the two groups of clamping mechanisms are arranged symmetrically with respect to their structures.

[0016] Furthermore, the mounting frame includes a first mounting plate and a second mounting plate, the rotary drive member, the first driven gear and the second central axis are all mounted on the first mounting plate, and the articulated shaft is mounted on the second mounting plate.

[0017] Furthermore, a fixed limit stop ring is sleeved on the outer side of the second driven gear on the second central shaft, and the limit stop ring is used to limit the second driven gear.

[0018] Furthermore, the end of the rod mold abutting against the inclined surface abutment block is configured to be arc-shaped.

[0019] Furthermore, the rotary drive member is a rotary motor.

[0020] Furthermore, a sliding groove is provided on the sliding block, and the sliding groove is slidably matched with the sliding track.

[0021] Furthermore, the support plate is welded and fixed to the upper surface of the sliding block.

[0022] The beneficial effects of the present invention are:

[0023] The clamp for integrated milling, drilling and tapping processing equipment provided by the present invention, when it is necessary to grind the outer surface of a shaft workpiece, a set of abutting rollers of the clamping mechanism are separated from the outer surface of the shaft workpiece, and the torsion spring can drive the first hinge rod and the second hinge rod to approach each other, the driving gears respectively drive the two first driven gears to rotate, the two first driven gears respectively drive the two second driven gears and the driving rollers to rotate, the driving rollers clamp and drive the shaft workpiece to rotate, and the driving rollers of the other set of clamping mechanism are close to the polished edge of the outer surface of the shaft workpiece. Along the way, the abutment rollers and driving rollers of the clamping mechanism are clamped and abutted against the outer surface of the shaft workpiece. When the mobile driving mechanism drives another set of clamping mechanisms to move axially relative to the shaft workpiece, the tool head of the rod grinder can extend out of the guide hole to grind the outer surface of the shaft workpiece; when the shaft workpiece needs to be clamped, the abutment rollers and driving rollers of the four clamping units are abutted against the outer surface of the clamped shaft workpiece, and then the milling, drilling and tapping tooling of the milling, drilling and tapping integrated processing equipment is used to perform corresponding processing operations on the clamped shaft workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a milling, drilling and tapping integrated processing equipment according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the clamping state structure of a fixture for integrated milling, drilling and tapping processing equipment according to one embodiment of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a clamping mechanism of a clamp for milling, drilling and tapping integrated processing equipment according to an embodiment of the present invention;

[0027] Figure 4 It is a schematic structural diagram of a grinding state of a fixture for integrated milling, drilling and tapping processing equipment according to an embodiment of the present invention;

[0028] Figure 5 An exploded view of a fixture for integrated milling, drilling and tapping processing equipment according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic structural diagram of a clamping unit of a clamp for integrated milling, drilling and tapping processing equipment according to an embodiment of the present invention;

[0030] Figure 7 It is a front view of a clamping unit of a clamp for integrated milling, drilling and tapping processing equipment according to an embodiment of the present invention;

[0031] Figure 8 for Figure 7 Sectional view of section AA;

[0032] Fig. 9 for Figure 7 Sectional view of the middle BB section;

[0033] Fig.10 for Fig. 9 Magnified view of area A.

[0034] in:

[0035] 100. Fixture for integrated milling, drilling and tapping processing equipment; 110. Clamping mechanism; 111. Clamping unit; 112. Sliding block; 113. Support plate; 114. Clamping drive assembly; 115. Mounting seat; 116. Mounting frame; 117. Rotary drive member; 118. Driving gear; 119. First driven gear; 120. Articulated shaft; 121. First articulated rod; 122. Second articulated rod; 123. First center axis; 124. Limiting gear; 125. Abutting roller; 126. Second center axis; 127. Second driven gear; 128. Driving roller; 129. First Driving spring; 130, abutting column; 131, limiting column; 132, second driving spring; 133, limiting ring groove; 134, third driving spring; 135, inclined surface abutment block; 136, rod mold; 137, fourth driving spring; 138, clamping motor; 139, clamping screw; 140, guide rod; 141, clamping threaded sleeve; 142, guide sleeve; 143, first mounting plate; 144, second mounting plate; 145, limiting retaining ring; 150, mobile driving mechanism; 151, driving motor; 152, driving screw; 153, driving threaded sleeve; 160, sliding track. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a fixture 100 for integrated milling, drilling and tapping processing equipment, which includes two groups of clamping mechanisms 110 and four groups of mobile drive mechanisms 150. The clamping mechanism 110 includes two clamping units 111 that can cooperate with each other to clamp, and the structures of the two clamping units 111 are symmetrically arranged along the axis of the shaft parts. The clamping units 111 located on the same side of the two groups of clamping mechanisms 110 are slidably installed on the same sliding rail 160, and the four groups of mobile drive mechanisms 150 are used to drive the four clamping units 111 to move along the sliding rail 160 in a one-to-one manner.

[0040] like Figure 5 and Figure 6 As shown, the clamping unit 111 includes a sliding block 112, which is slidably installed on a sliding rail 160, a supporting plate 113 is provided on the sliding block 112, a clamping drive assembly 114 is provided on the supporting plate 113, a mounting seat 115 is provided on the clamping drive assembly 114, and the clamping drive assembly 114 is used to drive the mounting seat 115 to move closer to or away from another matching clamping unit 111, a mounting frame 116 is installed on the mounting seat 115, a rotating driving member 117 is installed on the mounting frame 116, a driving gear 118 is installed on the output shaft of the rotating driving member 117, and two first driven gears 119 are also rotatably installed on the mounting frame 116, and the driving gear 118 can respectively drive the two first driven gears 119 to rotate.

[0041] like Figure 5 and Figure 6As shown, a hinge shaft 120 is provided on the side of the mounting frame 116 facing away from the other clamping mechanism 110, and a first hinge rod 121 and a second hinge rod 122 are hinged on the hinge shaft 120, and a torsion spring is provided on the hinge shaft 120, which can drive the first hinge rod 121 and the second hinge rod 122 to approach each other, and a first central axis 123 is provided at the ends of the first hinge rod 121 and the second hinge rod 122, and a fixedly connected limit gear 124 and abutting roller 125 are fixedly installed on the first central axis 123, and the limit gear 124 can mesh with the first driven gear 119, and two second central axes 126 are provided on the side of the mounting frame 116 close to the other clamping mechanism 110, and a fixedly connected second driven gear 127 and a driving roller 128 are rotatably installed on the second central axis 126, and the second driven gear 127 meshes with the first driven gear 119, as shown in FIG. Figure 7 and Figure 8 As shown, an installation cavity is opened in the second center shaft 126, and a limiting hole is opened on the side wall of the second center shaft 126. A first driving spring 129 is installed in the installation cavity. The first driving spring 129 is connected to an abutment column 130. A limiting column 131 is installed in the limiting hole. The second driving spring 132 is sleeved on the limiting column 131. The outer wall of the abutment column 130 abuts against the end inclined surface of the limiting column 131, and a limiting ring groove 133 is opened on the inner wall of the driving roller 128.

[0042] When the first center axis 123 and the second center axis 126 are disengaged, the first driving spring 129 drives the abutment column 130 to extend, so that the outer wall of the abutment column 130 drives the limiting column 131 to extend to the limiting ring groove 133 to limit the driving roller 128 to move axially along the second center axis 126; when the first center axis 123 and the second center axis 126 are coaxially abutted, the abutment column 130 compresses the first driving spring 129, and the second driving spring 132 drives the limiting column 131 to retract from the limiting ring groove 133.

[0043] like Figure 5 , Fig. 9 and Fig.10 As shown, a third driving spring 134 is sleeved on the second center shaft 126, and a bevel block 135 is provided on the outer wall of the second center shaft 126. A guide hole extending radially is opened in the driving roller 128, and a rod mold 136 is installed in the guide hole. A fourth driving spring 137 is sleeved on the outer side of the rod mold 136. When the driving roller 128 overcomes the action of the third driving spring 134 and moves axially relative to the second center shaft 126, the end of the rod mold 136 abuts against the bevel block 135, and the bevel block 135 can drive the tool head of the rod mold 136 to extend out of the guide hole.

[0044] The specific operation process is as follows:

[0045] When the outer surface of a shaft workpiece needs to be polished, such as Figure 2 and Figure 3 As shown, first, four groups of mobile drive mechanisms 150 drive four clamping units 111 to move along the sliding track 160 in a one-to-one correspondence. Figure 5 and Figure 6 As shown, the mounting seat 115 is driven by the clamping drive assembly 114 to approach another matching clamping unit 111, so that the abutting rollers 125 and the driving rollers 128 of the four clamping units 111 are all in abutment against the outer surface of the clamped shaft workpiece, and then a grinding knife is used to grind the outer surface of a section of one end of the shaft workpiece to make it smooth.

[0046] like Figure 4 and Figure 5 As shown, a group of clamping mechanisms 110 (i.e., the first group of clamping mechanisms) close to the polished and flattened end of the shaft workpiece are then moved by the mobile driving mechanism 150 and the clamping driving assembly 114 until the abutting roller 125 of the clamping mechanism 110 is separated from the outer surface of the shaft workpiece, and the torsion spring can drive the first hinge rod 121 and the second hinge rod 122 to approach each other, at which time the first center axis 123 and the second center axis 126 are separated, and the first driving spring 129 drives the abutting column 130 to extend, so that the outer side wall of the abutting column 130 drives the limiting column 131 to extend to the limiting ring groove 133 to limit the driving roller 128 to move axially along the second center axis 126; then, the mobile driving mechanism 150 and the clamping driving assembly 114 are used to move the abutting roller 125 away from the outer surface of the shaft workpiece, and the torsion spring can drive the first hinge rod 121 and the second hinge rod 122 to approach each other, at which time the first center axis 123 and the second center axis 126 are separated, and the first driving spring 129 drives the abutting column 130 to extend, so that the outer side wall of the abutting column 130 drives the limiting column 131 to extend to the limiting ring groove 133 to limit the driving roller 128 to move axially along the second center axis 126. The tightening drive assembly 114 moves another group of clamping mechanisms 110 (i.e., the second group of clamping mechanisms) until the driving roller 128 of the clamping mechanism 110 is close to the polished edge of the outer surface of the shaft workpiece, and the abutting roller 125 and the driving roller 128 of the clamping mechanism 110 are both clamped and abutted against the outer surface of the shaft workpiece, and the tool head of the rod grinder 136 can extend out of the guide hole to grind the outer surface of the shaft workpiece. At this time, the first center axis 123 and the second center axis 126 are coaxially abutted, the abutting column 130 compresses the first driving spring 129, and the second driving spring 132 drives the limiting column 131 to retract from the limiting ring groove 133, so that the driving roller 128 can move axially along the second center axis 126.

[0047] Finally, the rotating drive member 117 of the clamping unit 111 of the first group of clamping mechanisms is started, and the driving gear 118 drives the two first driven gears 119 to rotate respectively, and the two first driven gears 119 respectively drive the two second driven gears 127 and the driving roller 128 to rotate, and the driving roller 128 clamps and drives the shaft workpiece to rotate, and at the same time cooperates to start the moving driving mechanism 150 to drive the second group of clamping mechanisms to move axially relative to the shaft workpiece in a direction away from the first group of clamping mechanisms, and the second group of clamping mechanisms moves relative to the shaft workpiece toward the end to be polished flat, and the friction between the outer surface of the shaft workpiece and the driving roller 128 of the second group of clamping mechanisms will cause the driving roller 128 to overcome the action of the third driving spring 134 and move axially along the second center axis 126, and the end of the rod grinder 136 abuts against the inclined surface block 135, and the inclined surface block 135 drives the tool head of the rod grinder 136 to extend out of the guide hole to grind the outer surface of the shaft workpiece.

[0048] After the outer surface of the shaft workpiece is completely polished, Figure 2 and Figure 3 As shown, the four groups of mobile driving mechanisms 150 drive the four clamping units 111 to move along the sliding track 160 in a one-to-one correspondence. Figure 5 and Figure 6 As shown, the mounting seat 115 is driven by the clamping drive assembly 114 to approach another matching clamping unit 111, so that the abutment rollers 125 and the driving rollers 128 of the four clamping units 111 are all in abutment against the outer surface of the clamped shaft workpiece, and then the milling, drilling and tapping tooling of the integrated milling, drilling and tapping processing equipment is used to perform corresponding processing operations on the clamped shaft workpiece.

[0049] The clamp 100 for integrated milling, drilling and tapping processing equipment provided by the embodiment of the present invention, when it is necessary to grind the outer surface of a shaft workpiece, a set of abutting rollers 125 of the clamping mechanism are separated from the outer surface of the shaft workpiece, and the torsion spring can drive the first hinge rod 121 and the second hinge rod 122 to approach each other, the driving gear 118 drives the two first driven gears 119 to rotate respectively, and the two first driven gears 119 respectively drive the two second driven gears 127 and the driving roller 128 to rotate, the driving roller 128 clamps and drives the shaft workpiece to rotate, and the driving roller 128 of the other set of clamping mechanism is close to the outer surface of the shaft workpiece. To grind the smooth edges, the abutment roller 125 and the driving roller 128 of the clamping mechanism are clamped and abutted against the outer surface of the shaft workpiece. When the mobile driving mechanism 150 drives another set of clamping mechanisms 110 to move axially relative to the shaft workpiece, the tool head of the rod grinder 136 can extend out of the guide hole to grind the outer surface of the shaft workpiece; when the shaft workpiece needs to be clamped, the abutment rollers 125 and the driving rollers 128 of the four clamping units 111 are all abutted against the outer surface of the clamped shaft workpiece, and then the milling, drilling and tapping tooling of the integrated milling, drilling and tapping processing equipment are used to perform corresponding processing operations on the clamped shaft workpiece.

[0050] In this embodiment, if Figure 2 and Figure 3 As shown, the structures of the two groups of clamping mechanisms 110 are arranged axially symmetrically along the direction perpendicular to the axis of the shaft parts. This structure can grind the outer surface of any end of the shaft workpiece, thereby driving the corresponding clamping mechanism 110 to clamp, drive and grind. The end of the rod grinder 136 abutting against the inclined surface block 135 is arc-shaped. The end of the rod grinder 136 abutting against the inclined surface block 135 is set to an arc shape, which reduces the axial force (frictional resistance) between the end of the rod grinder 136 and the inclined surface block 135 along the second central axis 126, so that the inclined surface block 135 drives the tool head of the rod grinder 136 to extend out of the guide hole to grind the outer surface of the shaft workpiece. The rotating drive member 117 is a rotating motor. Of course, it can be understood that the rotating drive member 117 can also be other types of rotating drive devices. A slide groove is provided on the sliding block 112, and the slide groove is slidably matched with the sliding track 160. The support plate 113 is fixed to the upper surface of the sliding block 112 by welding. Of course, it can be understood that the support plate 113 can also be fixed to the upper surface of the sliding block 112 by other means, such as bolt fixing.

[0051] The fixture 100 for integrated milling, drilling and tapping processing equipment provided by the embodiment of the present invention is specifically, Figure 2As shown, the mobile driving mechanism 150 includes a driving motor 151 and a driving screw 152. The driving motor 151 can drive the driving screw 152 to rotate. The driving screw 152 is arranged parallel to the sliding track 160. The support plate 113 is provided with a driving threaded sleeve 153. The driving threaded sleeve 153 is sleeved on the driving screw 152. The rotation of the driving screw 152 can drive the clamping unit 111 to move along the sliding track 160. Start the driving motor 151, the driving motor 151 can drive the driving screw 152 to rotate, and the rotation of the driving screw 152 can drive the clamping unit 111 to move along the sliding track 160.

[0052] In this embodiment, if Figure 5 and Figure 6 As shown, the clamping drive assembly 114 includes a clamping motor 138, a clamping screw 139 and a guide rod 140. The clamping motor 138 and the guide rod 140 are both installed on the support plate 113. The clamping screw 139 is installed on the output shaft of the clamping motor 138. The mounting seat 115 is provided with a clamping threaded sleeve 141 and a guide sleeve 142. The clamping threaded sleeve 141 is sleeved on the clamping screw 139, and the guide sleeve 142 is sleeved on the guide rod 140. The rotation of the clamping screw 139 can drive the mounting seat 115 to move along the guide rod 140.

[0053] When it is necessary to drive the mounting seat 115 to move closer to or away from another matching clamping unit 111 through the clamping drive assembly 114, start the clamping motor 138, the clamping motor 138 drives the clamping screw 139 to rotate, and the clamping threaded sleeve 141 moves relative to the clamping screw 139, driving the mounting seat 115 to move along the guide rod 140 to achieve the purpose of moving closer to or away from another matching clamping unit 111.

[0054] In this embodiment, if Figure 5 and Figure 6 As shown, the mounting frame 116 includes a first mounting plate 143 and a second mounting plate 144, the rotary drive member 117, the first driven gear 119 and the second central shaft 126 are all mounted on the first mounting plate 143, and the hinge shaft 120 is mounted on the second mounting plate 144. A fixed limit stop ring 145 is sleeved on the outer side of the second driven gear 127 on the second central shaft 126, and the limit stop ring 145 is used to limit the second driven gear 127. Since the friction between the outer surface of the shaft workpiece and the driving roller 128 of the second group of clamping mechanisms 110 causes the driving roller 128 to overcome the action of the third driving spring 134 and move axially relative to the second central shaft 126, the limit stop ring 145 can prevent the second driven gear 127 and the driving roller 128 from being separated from the second central shaft 126.

[0055] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fixture for integrated milling, drilling and tapping processing equipment, characterized in that: It comprises two groups of clamping mechanisms (110) and four groups of moving drive mechanisms (150), wherein the clamping mechanism (110) comprises two clamping units (111) capable of clamping in cooperation with each other; The clamping unit (111) comprises a sliding block (112), a support plate (113) is provided on the sliding block (112), a clamping drive assembly (114) is provided on the support plate (113), a mounting seat (115) is provided on the clamping drive assembly (114), a mounting frame (116) is mounted on the mounting seat (115), a rotating drive member (117) is mounted on the mounting frame (116), a driving gear (118) is mounted on the output shaft of the rotating drive member (117), and two first driven gears (119) are rotatably mounted on the mounting frame (116); A hinge shaft (120) is provided on one side of the mounting frame (116), a first hinge rod (121) and a second hinge rod (122) are hinged on the hinge shaft (120), a torsion spring is provided on the hinge shaft (120), a first central shaft (123) is provided at each end of the hinge rod, a limit gear (124) and an abutment roller (125) are fixedly mounted on the first central shaft (123), two second central shafts (126) are provided on the other side of the mounting frame (116), a second driven gear (127) and a driving roller (128) are rotatably mounted on the second central shaft (126); A third driving spring (134) is sleeved on the second central shaft (126), and an inclined surface stop block (135) is provided on the outer wall of the second central shaft (126). A guide hole extending in the radial direction is provided in the driving roller (128), and a rod mold (136) is installed in the guide hole. A fourth driving spring (137) is sleeved on the outer side of the rod mold (136), and an end of the rod mold (136) abuts against the inclined surface stop block (135).

2. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: A mounting cavity is provided in the second central shaft (126), a limiting hole is provided on the side wall of the second central shaft (126), a first driving spring (129) is installed in the mounting cavity, the first driving spring (129) is connected to an abutting column (130), a limiting column (131) is installed in the limiting hole, a second driving spring (132) is sleeved on the limiting column (131), an outer wall of the abutting column (130) abuts against an end inclined surface of the limiting column (131), and a limiting ring groove (133) is provided on the inner wall of the driving roller (128); When the first center axis (123) and the second center axis (126) are disengaged, the first driving spring (129) drives the abutment column (130) to extend, so that the outer wall of the abutment column (130) drives the limiting column (131) to extend to the limiting ring groove (133) to limit the axial movement of the driving roller (128) along the second center axis (126); when the first center axis (123) and the second center axis (126) are coaxially abutted, the abutment column (130) compresses the first driving spring (129), and the second driving spring (132) drives the limiting column (131) to retract from the limiting ring groove (133).

3. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The mobile drive mechanism (150) comprises a drive motor (151) and a drive screw (152); the drive motor (151) can drive the drive screw (152) to rotate; the sliding block (112) is slidably mounted on a sliding track (160); the drive screw (152) is arranged parallel to the sliding track (160); a drive threaded sleeve (153) is provided on the support plate (113); the drive threaded sleeve (153) is sleeved on the drive screw (152); the rotation of the drive screw (152) can drive the clamping unit (111) to move along the sliding track (160).

4. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The clamping drive assembly (114) comprises a clamping motor (138), a clamping screw (139) and a guide rod (140); the clamping motor (138) and the guide rod (140) are both mounted on the support plate (113); the clamping screw (139) is mounted on the output shaft of the clamping motor (138); a clamping threaded sleeve (141) and a guide sleeve (142) are provided on the mounting seat (115); the clamping threaded sleeve (141) is sleeved on the clamping screw (139); the guide sleeve (142) is sleeved on the guide rod (140); the rotation of the clamping screw (139) can drive the mounting seat (115) to move along the guide rod (140).

5. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The mounting frame (116) comprises a first mounting plate (143) and a second mounting plate (144); the rotary drive member (117), the first driven gear (119) and the second central axis (126) are all mounted on the first mounting plate (143); and the articulated shaft (120) is mounted on the second mounting plate (144).

6. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: A fixed limit stop ring (145) is sleeved on the second central shaft (126) and located outside the second driven gear (127). The limit stop ring (145) is used to limit the position of the second driven gear (127).

7. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The end portion of the rod mold (136) abutting against the inclined surface abutment block (135) is configured to be arc-shaped.

8. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The rotary drive member (117) is a rotary motor.

9. The fixture for integrated milling, drilling and tapping processing equipment according to claim 3, characterized in that: The sliding block (112) is provided with a sliding groove, and the sliding groove is slidably matched with the sliding track (160).

10. The fixture for integrated milling, drilling and tapping processing equipment according to claim 1, characterized in that: The support plate (113) is welded and fixed to the upper surface of the sliding block (112).

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