CN112170765A - Spin riveting machine and abutting device thereof - Google Patents
Spin riveting machine and abutting device thereof Download PDFInfo
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- CN112170765A CN112170765A CN202010986737.0A CN202010986737A CN112170765A CN 112170765 A CN112170765 A CN 112170765A CN 202010986737 A CN202010986737 A CN 202010986737A CN 112170765 A CN112170765 A CN 112170765A
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- 238000003825 pressing Methods 0.000 claims abstract description 46
- 230000009471 action Effects 0.000 claims description 2
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- 230000005540 biological transmission Effects 0.000 description 10
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
- B21J15/42—Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
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Abstract
The invention provides a butting device which comprises a support, a butting rod, a first locking block, a second locking block, a butting driving piece and a butting piece. The abutting rod is arranged on the support in a sliding manner; the first locking block is arranged on the support in a sliding manner, is connected with the abutting rod and is provided with a first inclined surface and a first abutting surface; the second locking block is arranged on the support in a sliding manner and is provided with a second inclined surface and a second abutting surface connected with the second inclined surface, the second inclined surface is in sliding contact with the first inclined surface in an initial state, and the second abutting surface is parallel to and spaced from the first abutting surface; the butting driving piece is arranged on the support and connected with the second locking block; the pressing piece is arranged on the support and is pressed against the workpiece to be riveted. It can avoid when revolving and rivet the work piece take place to rock and can solve when revolving and rivet the problem that the rivet was released from work piece rivet hole one side. The invention also provides a spin riveting machine with the abutting device.
Description
Technical Field
The invention relates to the field of machining equipment, in particular to a spin riveting machine and an abutting device thereof.
Background
The spin riveting machine is the necessary riveting equipment in the work piece riveting process, and relies on the cold rolling principle, realizes the riveting of work piece through rotation and pressure. The present phase spin riveting machine usually includes the riveting head, the cylinder or the hydro-cylinder that drives the riveting head and move along the horizontal direction and drive riveting head pivoted motor, and most spin riveting machines have adopted the form that riveting head, cylinder or the cylinder body of hydro-cylinder and motor three arrange along the horizontal direction is coaxial or will rivet head and motor arrange along the horizontal direction motor is coaxial, for example, the high-efficient two horizontal hydraulic spin riveting machine of the chinese utility model patent of publication No. CN209867248U, it adopts the structure that riveting machine, hydraulic cylinder and ABB driving motor three arrange along the horizontal direction is coaxial, this design makes spin riveting machine length overlength can't rationally utilize the space effectively. When the horizontal rivet needs to be horizontally screwed, the horizontal arrangement of the spin riveting machine not only increases the space occupied by the machine tool, but also can interfere with other mechanisms around the machine tool, thereby increasing the research and development cost of machine tool production and the design difficulty of the machine tool, and limiting the use of the spin riveting machine to a certain extent. In addition, in order to avoid the effect of spin riveting caused by the shaking of the workpiece during spin riveting, the spin riveting machine generally comprises an abutting device for abutting against the workpiece. The butt device that spin riveting machine adopted among the prior art adopts the tight cylinder drive compact heap of pressure along vertical motion usually to carry out the butt to the work piece and compress tightly, however, adopt this butt device, when carrying out the horizontal spin riveting of rivet at the horizontal direction, there is the problem that rivet is released rivet one side of rivet dorsad from the work piece rivet hole.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the background art, and an object of the present invention is to provide an abutting device that can prevent a workpiece from shaking during spin-riveting and can solve the problem that a rivet is pushed out from a rivet hole side of the workpiece during spin-riveting.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an abutment device comprising:
a support;
the abutting rod is arranged on the support and can move along a first direction under stress;
the first locking block is slidably arranged on the support and connected with one end of the abutting rod, one end of the first locking block, which is back to the abutting rod, is provided with a first inclined surface and a first abutting surface connected with the first inclined surface, the first abutting surface is parallel to the second direction, and the second direction is perpendicular to the first direction;
the second locking block is arranged on the support in a sliding mode and provided with a second inclined surface and a second abutting surface connected with the second inclined surface, the second inclined surface is in sliding contact with the first inclined surface in an initial state, and the second abutting surface is parallel to and spaced from the first abutting surface;
the abutting driving piece is arranged on the support and connected with the second locking block, the abutting driving piece can drive the second locking block to move along the second direction, and the first locking block and the abutting rod connected with the first locking block are driven to move along the first direction through the matching of the second inclined surface and the first inclined surface until the second abutting surface abuts against the first abutting surface; and
the pressing piece comprises a pressing driving piece and a pressing block, the pressing driving piece is arranged on the support and connected with the pressing block so as to drive the pressing block to move along a third direction to abut against a workpiece to be riveted, and the third direction is perpendicular to the first direction and the second direction.
Furthermore, the support comprises a support table, a cover plate and a connecting plate, a transverse groove and a longitudinal groove are concavely arranged on the top surface of the support table, the transverse groove extends along the second direction, the longitudinal groove extends along the first direction, and one end of the longitudinal groove is communicated with the transverse groove; the second locking block is positioned on the support table and is in sliding connection with the transverse groove; the first locking block is positioned on the support platform and is in sliding connection with the longitudinal groove; the abutting driving piece is arranged on the supporting table, the abutting rod penetrates through the supporting table in a sliding mode, and one end of the abutting rod extends into the longitudinal groove to be connected with the first locking block; the cover plate is connected with the support table and covers the top notches of the transverse grooves and the top notches of the longitudinal grooves; the connecting plate is connected with the cover plate, and the abutting driving piece is arranged on the connecting plate.
Furthermore, the abutting device further comprises a return spring, the return spring is contained in the longitudinal groove and sleeved on the abutting rod, and the two opposite ends of the return spring respectively abut against the first locking block and the supporting platform.
Further, the cover plate is perpendicular to the connecting plate, and the connecting plate is connected to one side of the cover plate, which is back to the abutting driving piece.
Furthermore, the butt driving piece is connected with a T-shaped block, one end of the second locking block is concavely provided with a T-shaped groove, and the T-shaped block is clamped in the T-shaped groove so as to connect the second locking block with the butt driving piece.
The invention also provides a spin riveting machine, which comprises a riveting device and a butting device which are arranged at intervals, wherein the butting device comprises:
a support;
the abutting rod is arranged on the support and can be stressed to be close to or far away from the riveting device along a first direction;
the first locking block is slidably arranged on the support and connected with one end of the abutting rod, one end of the first locking block, which is back to the abutting rod, is provided with a first inclined surface and a first abutting surface connected with the first inclined surface, the first abutting surface is parallel to the second direction, and the second direction is perpendicular to the first direction;
the second locking block is arranged on the support in a sliding mode and provided with a second inclined surface and a second abutting surface connected with the second inclined surface, the second inclined surface is in sliding contact with the first inclined surface in an initial state, and the second abutting surface is parallel to and spaced from the first abutting surface;
the abutting driving piece is arranged on the support and connected with the second locking block, the abutting driving piece can drive the second locking block to move along the second direction, and the first locking block and the abutting rod connected with the first locking block are driven to move along the first direction through the matching of the second inclined surface and the first inclined surface until the second abutting surface abuts against the first abutting surface; and
the pressing piece comprises a pressing driving piece and a pressing block, the pressing driving piece is arranged on the support and connected with the pressing block so as to drive the pressing block to move along a third direction to abut against a workpiece to be riveted, and the third direction is perpendicular to the first direction and the second direction.
Furthermore, the riveting device comprises a base, a sliding table, a horizontal driving piece, a riveting head and a rotary driving piece, wherein the sliding table is connected with the base in a sliding manner, and the horizontal driving piece is arranged on the base and connected with the sliding table so as to drive the sliding table to reciprocate along a first direction; the riveting head is rotatably arranged on the sliding table, and the rotary driving piece is arranged on the sliding table and connected with the riveting head so as to drive the riveting head to rotate around an axis parallel to the first direction; horizontal driving piece, riveting head and rotary driving piece are along vertical interval distribution.
Furthermore, the base comprises a first base and a second base, the second base is nested in the first base in a sliding mode and locked with the first base through a locking bolt, and the second base can move along a third direction relative to the first base under the stress when the locking bolt is in a loosening state; the sliding table is connected with the second base in a sliding manner; the horizontal driving piece is arranged on the second base.
Furthermore, the horizontal driving piece is a propulsion cylinder or a propulsion oil cylinder, the horizontal driving piece is connected with the sliding table through a connecting piece, the connecting piece comprises a first mounting plate and a second mounting plate, the first mounting plate is connected with the horizontal driving piece, a clamping groove is concavely arranged on the first mounting plate, the second mounting plate is connected with the sliding table, a clamping block is arranged on the second mounting plate, and the clamping block is clamped with the clamping groove.
Furthermore, the second mounting plate is connected with the sliding table through a mounting bolt, a long-strip-shaped sliding hole is formed in the sliding table in a penetrating mode, the length direction of the sliding hole is parallel to the first direction, a mounting hole is formed in the second mounting plate in a penetrating mode, and the mounting bolt penetrates through the mounting hole and the sliding hole to connect the second mounting plate with the sliding table.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the abutting device comprises an abutting rod and an abutting part, wherein the abutting rod can move along a first direction and abuts against a rivet on a workpiece to be riveted so as to prevent the rivet from being pushed out from one side of a rivet hole of the workpiece during riveting; the pressing piece can move vertically and abut against a workpiece to be riveted so as to avoid the influence of shaking of the workpiece on the spin riveting effect during the spin riveting.
2. The abutting device comprises a first locking block, a second locking block and an abutting driving piece, wherein the first locking block and the second locking block are in sliding contact with a first inclined surface through a second inclined surface, the abutting driving piece can drive the second locking block to move along a second direction perpendicular to the first direction, and through the matching of the second inclined surface and the first inclined surface, the abutting rod is driven to move along the first direction to abut against a rivet on a workpiece to be riveted until a first abutting surface of the first locking block abuts against a second abutting surface of the second locking block, so that self-locking is realized, the telescopic motion of the abutting rod is realized, meanwhile, the abutting rod can bear larger axial load, and the problem of insufficient thrust during abutting is solved; and the use of a large-diameter cylinder can be avoided in a self-locking mode, so that the production cost is saved.
3. Above-mentioned spin riveting machine has changed traditional arrangement scheme, arranges rivet head, horizontal drive spare and rotary drive spare three from top to bottom, can reduce spin riveting machine's axial length, and it is more stable when making spin riveting machine transversely spin riveting, has also improved spin riveting machine's space utilization simultaneously, reduces horizontal spin riveting machine's occupation space.
4. According to the spin riveting machine, the base comprises the first base and the second base, and the second base is nested in the first base in a sliding mode, so that the up-and-down position of the riveting head is adjusted, and the universality of the spin riveting machine is improved; and increased connecting block and height adjusting screw on first base and second base curb plate, improved base structure's stability, can adjust the upper and lower position of riveting head through rotating height adjusting screw simultaneously, reduced the degree of difficulty of debugging.
Drawings
Fig. 1 is a diagram illustrating a state of a spin riveting machine according to a preferred embodiment of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a perspective view of the riveter of fig. 1 from another perspective.
Fig. 4 is a perspective view of the riveting apparatus of the riveter shown in fig. 3 from another perspective.
Fig. 5 is a view showing the riveting apparatus shown in fig. 4 with a cover removed.
Fig. 6 is a structural view of a base in the riveting device shown in fig. 4.
Fig. 7 is a structural diagram of a spin riveting machine according to a preferred embodiment of the invention at the joint of a horizontal driving member and a sliding table.
Fig. 8 is an exploded view of a rivet head and a bearing assembly in a spin riveting machine in accordance with a preferred embodiment of the present invention.
Fig. 9 is a perspective view of the abutment device of the riveter of fig. 3 from another perspective.
Fig. 10 is a perspective view of the abutment device of fig. 9 from another perspective, with the connecting plate, the cover plate and the abutment member removed.
Description of the main elements
100. A spin riveting machine; 2. a riveting device; 20. a base; 21. a sliding table; 211. a slide plate; 213. a fixing plate; 215. a guide groove; 216. a rib plate; 217. a slide hole; 22. a horizontal drive member; 23. riveting a joint; 231. riveting a shaft; 233. an actuating section; 24. a rotary drive member; 241. a motor body; 245. a motor shaft; 25. a first base; 26. a second base; 201. a base plate; 203. a side plate; 205. a height adjustment hole; 206. a guide rail; 27. connecting blocks; 271. connecting holes; 273. a height adjusting screw; 281. a first stopper; 282. a second limiting block; 283. a limit screw; 29. a housing; 291. avoiding holes; 4. an abutment device; 41. a support; 411. a support table; 413. a cover plate; 415. a connecting plate; 416. a transverse groove; 417. a longitudinal groove; 42. a butting rod; 43. a first locking block; 431. a first inclined plane; 435. a first abutting surface; 44. abutting against the driving member; 45. a second locking block; 451. a second inclined plane; 453. a second abutting surface; 455. a T-shaped groove; 46. a pressing member; 461. pressing the driving member; 463. a pressing block; 47. a return spring; 48. a T-shaped block; 5. a connecting member; 51. a first mounting plate; 511. a card slot; 513. a plate body; 515. mounting a bar; 53. a second mounting plate; 531. a clamping block; 533. mounting holes; 6. a bearing assembly; 61. a bearing seat; 611. a base body; 613. an end cap; 615. a fixing hole; 63. a bearing; 71. a first pulley; 73. a second pulley; 75. a transmission belt; 200. and (5) a workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, a spin riveting machine 100 according to a preferred embodiment of the present invention includes a riveting device 2 and an abutting device 4, which are spaced apart from each other, and the riveting device 2 is capable of cooperating with the abutting device 4 to rivet a rivet (not shown) on a workpiece 200.
Referring to fig. 4, the riveting apparatus 2 includes a base 20, a sliding table 21, a horizontal driving member 22, a riveting head 23, and a rotary driving member 24. The sliding table 21 is connected with the base 20 in a sliding manner; the horizontal driving member 22 is installed on the base 20 and connected to the sliding table 21 to drive the sliding table 21 to reciprocate along a first direction X, where the first direction X is a horizontal direction; the rivet joint 23 is rotatably mounted on the sliding table 21; the rotary driving member 24 is mounted on the sliding table 21 and connected with the rivet joint 23 to drive the rivet joint 23 to rotate around an axis parallel to the first direction X; the horizontal driving member 22, the rivet head 23, and the rotary driving member 24 are vertically spaced apart, and in the present embodiment, the horizontal driving member 22, the rivet head 23, and the rotary driving member 24 are spaced apart from each other in the up-down direction. It is understood that the horizontal driving member 22, the rivet head 23, and the rotary driving member 24 may be disposed at intervals in the bottom-up direction as needed.
Referring to fig. 6, in the present embodiment, the base 20 includes a first base 25 and a second base 26, and the second base 26 is slidably nested in the first base 25 and locked with the first base 25 by a locking bolt (not shown). Each of the first base 25 and the second base 26 includes a bottom plate 201 and two side plates 203 vertically connected to two opposite ends of the bottom plate 201. The two bottom plates 201 are parallel to each other, the bottom plate 201 of the second base 26 is located above the bottom plate 201 of the first base 25, and the two side plates 203 of the second base 26 are located between the two side plates 203 of the first base 25 and are in sliding contact with the two side plates 203 of the first base 25 respectively. In the present embodiment, the side plate 203 of the second base 26 is connected to the side plate 203 corresponding to the first base 25 by a locking bolt, specifically: a strip-shaped height adjusting hole 205 is vertically perforated in the side plate 203 of the first base 25; the locking bolt passes through the height adjusting hole 205 and the side plate 203 of the second base 26 to detachably connect the side plate 203 of the first base 25 with the side plate 203 of the corresponding second base 26. In the loose state of the locking bolt, the second base 26 can move along the third direction Z under the stress relative to the first base 25, so as to adjust the height position of the second base 26. In the present embodiment, the third direction Z is a vertical direction perpendicular to the first direction X.
In order to prevent the second base 26 from moving down to cause a change in position during operation, the base 20 of the embodiment of the present invention further includes two pairs of connection blocks 27. The two pairs of connecting blocks 27 are distributed at intervals along a second direction Y perpendicular to the first direction X, and the two connecting blocks 27 in each pair of connecting blocks 27 are distributed at intervals along the first direction X on opposite sides of the side plate 203, so that the side plate 203 of the first base 25 and the side plate 203 of the second base 26 are clamped between the pair of connecting blocks 27 on the corresponding sides. In the present embodiment, the second direction Y is a horizontal direction perpendicular to both the first direction X and the third direction Z. Each connecting block 27 is connected with the side plate 203 of the second base 26 in a screwing or welding mode and the like, and a strip-shaped connecting hole 271 is vertically formed in each connecting block 27 in a penetrating mode; each connecting block 27 is correspondingly provided with a connecting screw (not shown), which passes through the corresponding connecting hole 271 and is in threaded connection with the side plate 203 of the corresponding side first base 25. The arrangement of the elongated connecting holes 271 and the connecting screws facilitates the locking of the second base 26 at different height positions. Through the cooperation of connecting screw and locking bolt, can further improve the structural stability of base 20, avoid in operation second base 26 to move down and lead to the change of position.
Because the number of parts is large and the weight is heavy on the second base 26, in order to reduce the difficulty in adjusting the height of the second base 26, in this embodiment, a height adjusting screw 273 is correspondingly disposed on each connecting block 27. The height adjusting screw 273 is vertically arranged and penetrates through the connecting block 27, the height adjusting screw 273 is in threaded connection with the connecting block 27, and the bottom end of the height adjusting screw 273 is rotatably connected with the bottom plate 201 of the first base 25. In use, the upper and lower positions of the second base 26 can be adjusted by screwing the height adjusting screw 273.
Referring to fig. 5, the sliding table 21 is slidably connected to the two side plates 203 of the second base 26. In this embodiment, the sliding table 21 includes a sliding plate 211 and a fixing plate 213, the sliding plate 211 is parallel to the bottom plate 201 and is slidably connected to the two side plates 203, specifically: guide rails 206 (fig. 4) are fixed on the top surfaces of the two side plates 203 of the second base 26, the guide rails 206 are parallel to the first direction X, two guide grooves 215 are correspondingly fixed on the bottom surface of the sliding plate 211, and the two guide grooves 215 are respectively in sliding connection with the guide rails 206 on the two side plates 203 so as to connect the sliding plate 211 and the two side plates 203 of the second base 26 together in a sliding manner. The movement of the slide table 21 can be guided by the engagement of the guide groove 215 with the guide rail 206. The fixing plate 213 is vertically connected to the side of the sliding plate 211 facing away from the base plate 201. In this embodiment, the sliding table 21 further includes two ribs 216, the two ribs 216 are both located on the side of the sliding plate 211 facing away from the bottom plate 201 and are respectively located on two opposite sides of the fixing plate 213, and each rib 216 connects the sliding plate 211 and the fixing plate 213. By providing the rib plate 216, the stability of the structure of the slide table 21 can be further improved.
The horizontal driving member 22 is mounted on the bottom plate 201 of the second base 26 and connected to the sliding table 21 to drive the sliding table 21 to reciprocate along the first direction X. Referring to fig. 7, in the present embodiment, the horizontal driving member 22 is a three-axis cylinder, and is located between the two guide rails 206, a cylinder body of the horizontal driving member 22 is connected to the bottom plate 201 of the second base 26, and the horizontal driving member 22 is connected to the sliding table 21 through the connecting member 5, specifically: the connecting piece 5 comprises a first mounting plate 51 and a second mounting plate 53, the first mounting plate 51 is connected with the piston rod of the horizontal driving piece 22, a clamping groove 511 is concavely arranged on the first mounting plate 51, the second mounting plate 53 is connected with the sliding plate 211 of the sliding table 21, a clamping block 531 is arranged on the second mounting plate 53, and the clamping block 531 is clamped with the clamping groove 511. In this embodiment, the locking groove 511 is a T-shaped groove, and the locking block 531 is a T-shaped block locked with the T-shaped groove. The sliding table 21 and the horizontal driving member 22 are connected through the structure of the clamping groove 511 and the clamping block 531, so that the phenomenon that the cylinder is blocked can be prevented. The clamping groove 511 is set as a T-shaped groove, and the clamping block 531 is set as a T-shaped block clamped with the T-shaped groove, so that the processing difficulty of the connecting piece 5 can be further reduced.
In the present embodiment, the first mounting plate 51 includes a plate body 513 and a mounting bar 515, the plate body 513 is substantially in the shape of a square plate, and is mounted on the free end of the piston rod of the horizontal driving member 22 and located between the two side plates 203 of the second base 26; the mounting bar 515 is substantially in the shape of a long strip plate, and the mounting bar 515 is located above the piston rod of the horizontal driving member 22, installed on the side of the plate body 513 facing the horizontal driving member 22, and perpendicular to the plate body 513. The clamping groove 511 is concavely arranged on one side of the mounting bar 515, which faces away from the plate body 513. In the present embodiment, the second mounting plate 53 is connected to the sliding table 21 by mounting bolts (not shown), specifically: a strip-shaped sliding hole 217 is formed in the sliding plate 211 of the sliding table 21 in a penetrating manner, and the length direction of the sliding hole 217 is parallel to the first direction X; the second mounting plate 53 is provided with a mounting hole 533 in a penetrating way; the second mounting plate 53 is located below the slide plate 211, and mounting bolts pass through the mounting holes 533 and the slide holes 217 to connect the second mounting plate 53 and the slide table 21 together.
The rivet joint 23 is rotatably connected to the slide table 21 via the bearing assembly 6 and is located between the two ribs 216. Referring to fig. 8, in the present embodiment, the rivet joint 23 is installed on the sliding plate 211 of the sliding table 21 and is located on a side of the sliding plate 211 opposite to the horizontal driving member 22. The bearing assembly 6 includes a bearing housing 61 and a bearing 63 installed in the bearing housing 61. The bearing housing 61 is mounted on the slide plate 211 of the slide table 21. The rivet head 23 includes a rivet shaft 231 and an actuating portion 233 connected to one end of the rivet shaft 231 and located outside the bearing seat 61, the rivet shaft 231 rotatably penetrates the bearing seat 61 and is connected to the bearing 63, and the actuating portion 233 is used for riveting a rivet in a riveting hole of the workpiece 200. In this embodiment, the bearing seat 61 includes a seat body 611 and two end covers 613, the seat body 611 is installed on the side of the sliding plate 211 opposite to the horizontal driving member 22, and the seat body 611 has a fixing hole 615 penetrating along the first direction X; the number of the bearings 63 is two, and the two bearings 63 are respectively arranged at two opposite ends in the fixing hole 615; the two end caps 613 are respectively located at two opposite ends of the fixing hole 615, and are both connected with the base 611 to limit the bearing 63 in the fixing hole 615; the rivet shaft 231 is rotatably inserted through the fixing hole 615 and the two end caps 613. It will be appreciated that the number of bearings 63 may be provided in other numbers as desired.
The rotary drive member 24 is connected to the free end of the riveting shaft 231, specifically: the rotary driving member 24 is mounted on the fixing plate 213, the rotary driving member 24 is connected with a first pulley 71, one end of the riveting shaft 231, which is far away from the actuating portion 233, is sleeved with a second pulley 73, and the first pulley 71 and the second pulley 73 are sleeved with a transmission belt 75, so as to connect the rotary driving member 24 and the riveting head 23 together. In the present embodiment, the rotary driving member 24 is a motor, and includes a motor body 241 and a motor shaft 245 rotatably connected to the motor body 241, the motor body 241 of the rotary driving member 24 is installed on one side of the fixing plate 213 opposite to the rivet joint 23, the motor shaft 245 of the rotary driving member 24 rotatably penetrates the fixing plate 213, and the first pulley 71 is sleeved on the motor shaft 245 of the rotary driving member 24.
Referring to fig. 3 to fig. 5 again, in the present embodiment, a first limit block 281 is further disposed on a side of the side plate 203 of the first base 25 facing away from the side plate 203 of the second base 26, and the first limit block 281 and the sliding plate 211 of the sliding table 21 may be connected by a screw connection or the like. A second stop block 282 is further disposed on a side of the side plate 203 of the first base 25 opposite to the side plate 203 of the second base 26. The second stopper 282 is mounted on the side plate 203 of the first base 25, the second stopper 282 is further connected with a stopper screw 283 in a threaded manner, and the stopper screw 283 is parallel to the first direction X and can abut against the first stopper 281.
In the present embodiment, the riveting device 2 further includes a cover 29, and the cover 29 is connected to the sliding plate 211 and the fixing plate 213 and covers the rib 216, the bearing assembly 6, the first pulley 71, the second pulley 73 and the transmission belt 75 to prevent the transmission portion from being exposed, prevent dust from falling into the transmission mechanism and prevent a worker from touching the transmission mechanism by mistake when the spin riveting machine 100 is in operation. The housing 29 is provided with a clearance hole 291 for the riveting shaft 231 to go in and out.
Referring to fig. 9 and 10, the abutting device 4 includes a support 41, an abutting rod 42, a first locking block 43, an abutting driving member 44, a second locking block 45 and an abutting member 46.
In this embodiment, the support 41 includes a support base 411, a cover 413 and a connecting plate 415, a top surface of the support base 411 is recessed with a transverse groove 416 and a longitudinal groove 417, the transverse groove 416 extends along the second direction Y, the longitudinal groove 417 extends along the first direction X, and the longitudinal groove 417 is communicated with one end of the transverse groove 416. A cover 413 is coupled to the support platform 411 and covers the top notches of the lateral grooves 416 and the top notches of the longitudinal grooves 417. The connection plate 415 is connected to the cap plate 413. In the present embodiment, the connection plate 415 is vertically connected to one end of the cover 413 and extends toward a side of the cover 413 away from the supporting platform 411.
The abutting rod 42 is disposed opposite to the riveting device 2, and the abutting rod 42 is disposed on the support 41 and can be forced to approach or leave the riveting device 2 along the first direction X. Specifically, in the present embodiment, the abutting rod 42 is slidably disposed through the supporting platform 411 and one end of the abutting rod 42 extends into the longitudinal groove 417. The first locking block 43 is located on the support table 411 of the support 41 and slidably connected with the longitudinal groove 417, and one side of the first locking block 43 is connected with one end of the abutment rod 42 located in the longitudinal groove 417. One end of the first locking block 43, which faces away from the connecting rod 42, is provided with a first inclined surface 431 and a first abutting surface 435 connected to the first inclined surface 431, and the first abutting surface 435 is parallel to the second direction Y. The abutting device 4 further comprises a return spring 47, the return spring 47 is accommodated in the longitudinal groove 417, sleeved on the abutting rod 42, and opposite ends of the return spring 47 abut against the first locking block 43 and the supporting platform 411 of the support 41 respectively.
The abutting driving member 44 is mounted on the supporting platform 411 of the support 41 and is located at one end of the cover 413 away from the connecting plate 415. The abutment actuator 44 is connected to the second locking block 45, and the second locking block 45 is located on the support table 411 of the support 41 and slidably connected to the lateral groove 416. The second locking block 45 is provided with a second inclined surface 451 and a second abutting surface 453 connected with the second inclined surface 451, and the second abutting surface 453 is parallel to and spaced from the first abutting surface 435. In the initial state, the second inclined surface 451 is in sliding contact with the first inclined surface 431, and the second abutting surface 453 is closer to the abutting rod 42 than the first abutting surface 435. The abutting driving member 44 can drive the second locking block 45 to move along the second direction Y, and through the cooperation of the second inclined surface 451 and the first inclined surface 431, the first locking block 43 and the abutting rod 42 connected with the first locking block 43 are driven to move towards the workpiece 200 along the first direction X until the second abutting surface 453 abuts against the first abutting surface 435.
In the present embodiment, the abutment driver 44 is an air cylinder, the cylinder body of the abutment driver 44 is installed on the supporting platform 411 of the support 41, and the piston rod of the abutment driver 44 is connected to one end of the second locking block 45 away from the second inclined surface 451, specifically: a T-shaped block 48 is connected to the free end of the piston rod of the abutment driver 44, a T-shaped groove 455 is recessed in one end of the second locking block 45, and the T-shaped block 48 is engaged in the T-shaped groove 455 so as to connect the second locking block 45 to the abutment driver 44. The abutting connection driving piece 44 and the second locking block 45 are connected through the structures of the T-shaped block 48 and the T-shaped groove 455, the phenomenon that the cylinder is blocked can be prevented, and the processing difficulty of parts can be reduced.
The pressing member 46 includes a pressing driving member 461 and a pressing block 463, the pressing driving member 461 is mounted on the support 41 and connected with the pressing block 463, so as to drive the pressing block 463 to move along the third direction Z and further press against the workpiece 200 to be riveted. In the present embodiment, the pressing driving member 461 is an air cylinder, a cylinder of the pressing driving member 461 is installed on a side of the connecting plate 415 opposite to the pressing driving member 44, and the pressing block 463 is connected to a free end of a piston rod of the pressing driving member 461.
As shown in fig. 1 and 2, in the case of spin riveting using a workpiece 200 as a hydraulic hinge, when the spin riveter 100 is used, the abutment device 4 and the riveting device 2 are respectively disposed on both sides of the workpiece 200, and the height position of the rivet head 23 is adjusted so that the riveting shaft 231 is coaxial with the abutment lever 42. The height position of the rivet joint 23 is specifically adjusted as follows: the locking bolt and the connecting screw are unscrewed or taken down from the side plate 203, then the height adjusting screw 273 is rotated to move the connecting block 27 along the height adjusting screw 273, so as to drive the second base 26 to move therewith, and after the riveting shaft 231 on the second base 26 is coaxial with the abutting rod 42, the locking bolt and the connecting screw are screwed down to prevent the second base 26 from moving relative to the first base 25.
The abutting device 4 firstly works in the spin riveting process, specifically, the abutting driving piece 44 pushes the second locking block 45 to move towards the first locking block 43 along the second direction Y, and the first locking block 43 and the abutting rod 42 are driven to move towards the workpiece 200 along the first direction X through the matching of the second inclined surface 451 and the first inclined surface 431 until the first abutting surface 435 of the first locking block 43 abuts against the second abutting surface 453 of the second locking block 45, so that self-locking is realized, the abutting rod 42 is prevented from moving backwards under pressure, and the abutting rod 42 is enabled to press the rivet in the riveting hole of the workpiece 200; the pressing drive member 461 pushes the pressing block 463 to move vertically to press the workpiece 200 from the upper side of the workpiece 200.
Subsequently, the riveting apparatus 2 starts to operate, the horizontal driving member 22 of the riveting apparatus 2 drives the sliding table 21 and the rivet head 23 connected to the sliding table 21 to move toward the workpiece 200, and the rotary driving member 24 drives the rivet head 23 to rotate, so as to rivet the rivet on the workpiece 200. After riveting, the horizontal driving member 22 drives the riveting head 23 to retreat and reset in the direction away from the workpiece 200, the abutting rod 42 moves in the direction away from the workpiece 200 to reset under the combined action of the abutting driving member 44 and the reset spring 47, and the abutting block 463 moves in the direction away from the workpiece 200 to reset under the driving of the abutting driving member 461 to wait for the next spin riveting.
Before the spin riveting machine 100 is used, the spin riveting distance of the riveting head 23 can be adjusted according to actual needs, and the method specifically comprises the following steps: the distance between the limit screw 283 and the first limit block 281 can be adjusted by rotating the limit screw 283, so that the stroke of the horizontal driving piece 22 is adjusted, and the spin riveting distance of the riveting head 23 is adjusted; the mounting bolts may be loosened or removed from the slide plate 211 and the second mounting plate 53, the slide table 21 may be moved in the first direction X, and the rivet rotation distance of the rivet head 23 may be adjusted by adjusting the relative positions of the rivet head 23 and the horizontal driving member 22.
Above-mentioned spin riveting machine 100 has changed traditional arrangement scheme, arranges rivet head 23, horizontal drive piece 22 and rotary drive piece 24 three from top to bottom, compares with the spin riveting machine of majority on the market, has changed overall arrangement form and transmission mode, can reduce the axial length of spin riveting machine 100, and is more stable when making spin riveting machine 100 transversely spin riveting, has also improved spin riveting machine 100's space utilization simultaneously, has reduced horizontal spin riveting machine 100's occupation space.
In the spin riveting machine 100, the stroke of the horizontal driving member 22 is adjusted by the cooperation of the first limiting block 281 and the second limiting block 282, the long strip-shaped sliding hole 217 is further formed at the joint of the sliding table 21 and the fixture block 531 to adjust the front and rear positions of the riveting head 23, and the spin riveting distance is adjusted by combining the sliding hole and the fixture block, so that later-stage debugging is facilitated; and the spin riveting machine 100 adopts the limit screw 283 as rigid limit, so that the riveting pressure is ensured to be unchanged.
In the spin riveting machine 100, the base 20 comprises the first base 25 and the second base 26, and the second base 26 is slidably nested in the first base 25, so that the up-and-down position of the riveting head 23 is adjusted, and the universality of the spin riveting machine 100 is improved; and increased connecting block 27 and height adjusting screw 273 on first base 25 and second base 26 curb plate 203, improved the stability of base 20 structure, can adjust the upper and lower position of rivet head 23 through rotating height adjusting screw 273 simultaneously, reduced the degree of difficulty of debugging, and simple structure, low cost.
In the spin riveting machine 100, the abutting device 4 includes an abutting rod 42 and an abutting part 46, the abutting rod 42 is disposed opposite to the riveting device 2, and can move in the horizontal direction and abut against the rivet on the workpiece 200 to be riveted, so as to prevent the rivet from being pushed out of the rivet hole of the workpiece 200 during spin riveting; the pressing piece 46 can move vertically and abut against the workpiece 200 to be riveted, so that the workpiece 200 is prevented from shaking during riveting to influence the riveting effect, and the riveting quality and the mechanism stability are improved.
In the prior art, a large-diameter cylinder is usually adopted to solve the problem of insufficient thrust during abutting, however, the adoption of the large-diameter cylinder can cause the equipment cost to be greatly increased, and the spin riveting machine 100 in the embodiment of the invention, the abutting device 4 comprises a first locking block 43, a second locking block 45 and an abutting driving piece 44, the first locking block 43 and the second locking block 45 are in sliding contact with a first inclined surface 431 through a second inclined surface 451, the abutting driving piece 44 can drive the second locking block 45 to move along the second direction Y, and the second inclined surface 451 is matched with the first inclined surface 431 to drive the abutting rod 42 to move along the first direction X until the first abutting surface 435 of the first locking block 43 abuts against the second abutting surface 453 of the second locking block 45, thereby realizing self-locking, not only realizing the telescopic motion of the abutting rod 42, but also enabling the abutting rod 42 to bear larger axial load so as to solve the problem of insufficient thrust during abutting; and the use of a large-diameter cylinder can be avoided in a self-locking mode, so that the production cost is saved.
It can be understood that when the abutting device 4 is installed, it is necessary to ensure that the abutting rod 42 can compress the rivet, and the abutting block 463 is attached to the workpiece 200; when the riveting device 2 is installed, the rivet head 23 and the rivet are ensured to be in the same horizontal direction, and the height of the rivet head 23 can be subsequently adjusted to enable the rivet head 23 to be coaxial with the rivet on the workpiece 200.
It is understood that the height of the abutting device 4 can be designed according to the height of the rivet on the workpiece 200 to ensure that the abutting rod 42 is coaxial with the rivet on the workpiece 200, the shape of the abutting block 463 can be designed according to the shape of the actual workpiece 200, the rivet head 23 is a standard component, the structure of the rivet head is the prior art, and the length and the radius can be modified according to the actual requirement.
It is understood that the elongated sliding hole 217 of the sliding table 21 may be replaced by a circular hole, and at this time, the adjustable range of the rivet rotating distance of the rivet head 23 is reduced. It will be appreciated that the thickness and structural dimensions of the components of the device may be adjusted as required to improve the performance of the mechanism.
It will be appreciated that the vertical adjustment function of the rivet head 23 can be omitted and the base 20 can be provided as an integral structure to further improve stability.
The embodiment of the invention adopts belt transmission as a transmission mode of the rotary driving piece 24 and the riveting head 23, and has simple structure and stable transmission. The T-shaped block and the T-shaped groove are matched at the joint of the air cylinder, so that the processing difficulty of parts can be effectively reduced.
The embodiment of the invention designs the bearing seat 61, and when the bearing seat is matched with the bearing 63, the bearing seat can not only support the riveting shaft 231, but also bear the axial load borne by the riveting shaft 231.
Most of the invention adopts bolts or screws for connection and fixation, and compared with most of the integrated spin riveting machines 100, the invention has stronger practicability, is more convenient for maintenance and modification and design. Most of the invention adopts bolts or screws as adjusting devices, so the cost is low and the installation and the adjustment are easy.
It will be appreciated that the horizontal drive member 22 is not limited to a propulsion cylinder, and other linear drives such as a cylinder may be used as desired. Similarly, the rotary driving member 24 is not limited to a motor, and other rotary driving devices in the prior art can be adopted; the abutment driving member 44 is not limited to the air cylinder, and other linear driving devices such as an oil cylinder may be used as necessary; the pressing driving member 461 is not limited to a cylinder, and other linear driving devices such as an oil cylinder may be used as required.
It will be appreciated that the transverse groove 416 and the longitudinal groove 417 may be omitted, and in this case, a rail structure for guiding the first and second locking blocks 43, 45 may be provided on the support base 411.
It will be appreciated that other configurations of the riveting apparatus 2 known in the art may be used.
It is understood that the structure and shape of the support 41 are not limited to the embodiment, and may be designed into other structures as required, and the abutment lever 42, the first locking block 43, the abutment driving member 44, the second locking block 45, and the abutting member 46 may be disposed on the support 41.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. An abutment device (4), characterized by comprising:
a support (41);
the abutting rod (42), the abutting rod (42) is arranged on the support (41) and can move along a first direction under the action of force;
the first locking block (43) is arranged on the support (41) in a sliding mode and is connected with one end of the abutting rod (42), one end, back to the abutting rod (42), of the first locking block (43) is provided with a first inclined surface (431) and a first abutting surface (435) connected with the first inclined surface (431), the first abutting surface (435) is parallel to the second direction, and the second direction is perpendicular to the first direction;
the second locking block (45), the second locking block (45) is arranged on the support (41) in a sliding mode, the second locking block (45) is provided with a second inclined surface (451) and a second abutting surface (453) connected with the second inclined surface (451), in an initial state, the second inclined surface (451) is in sliding contact with the first inclined surface (431), and the second abutting surface (453) is spaced from the first abutting surface (435) in a parallel mode;
the abutting driving piece (44) is arranged on the support (41) and connected with the second locking block (45), the abutting driving piece (44) can drive the second locking block (45) to move along the second direction, and the abutting rod (42) connected with the first locking block (43) is driven to move along the first direction through the matching of the second inclined surface (451) and the first inclined surface (431) until the second abutting surface (453) abuts against the first abutting surface (435); and
the pressing piece (46), the pressing piece (46) includes a pressing driving piece (461) and a pressing block (463), the pressing driving piece (461) is installed on the support (41) and connected with the pressing block (463) to drive the pressing block (463) to move along a third direction to further press against the workpiece (200) to be riveted, and the third direction is vertical to both the first direction and the second direction.
2. The abutment device (4) according to claim 1, wherein the support (41) comprises a support platform (411), a cover plate (413) and a connecting plate (415), a transverse groove (416) and a longitudinal groove (417) are recessed in a top surface of the support platform (411), the transverse groove (416) extends in the second direction, the longitudinal groove (417) extends in the first direction, and one end of the longitudinal groove (417) is in communication with the transverse groove (416); the second locking block (45) is positioned on the supporting platform (411) and is in sliding connection with the transverse groove (416); the first locking block (43) is positioned on the supporting platform (411) and is connected with the longitudinal groove (417) in a sliding way; the abutting driving piece (44) is arranged on the supporting platform (411), the abutting rod (42) penetrates through the supporting platform (411) in a sliding mode, and one end of the abutting rod (42) extends into the longitudinal groove (417) to be connected with the first locking block (43); the cover plate (413) is connected with the support platform (411) and covers the top notches of the transverse groove (416) and the top notches of the longitudinal groove (417); the connecting plate (415) is connected with the cover plate (413), and the abutting driving piece (461) is arranged on the connecting plate (415).
3. The abutment device (4) according to claim 2, wherein the abutment device (4) comprises a return spring (47), the return spring (47) being received in the longitudinal groove (417), being sleeved on the abutment rod (42) and having opposite ends abutting against the first locking block (43) and the support table (411), respectively.
4. The abutment device (4) according to claim 2, wherein the cover plate (413) is perpendicular to the connection plate (415), the connection plate (415) being connected to a side of the cover plate (413) facing away from the abutment drive (44).
5. An abutment device (4) according to claim 1, wherein a T-shaped block (48) is connected to the abutment driver (44), a T-shaped groove (455) is recessed in one end of the second locking block (45), and the T-shaped block (48) is engaged in the T-shaped groove (455) to connect the second locking block (45) to the abutment driver (44).
6. The utility model provides a spin riveting machine (100), includes riveting set (2) and butt device (4) that the interval set up, its characterized in that, butt device (4) include:
a support (41);
the abutting rod (42), the abutting rod (42) is arranged on the support (41) and can be stressed to be close to or far away from the riveting device (2) along a first direction;
the first locking block (43) is arranged on the support (41) in a sliding mode and is connected with one end of the abutting rod (42), one end, back to the abutting rod (42), of the first locking block (43) is provided with a first inclined surface (431) and a first abutting surface (435) connected with the first inclined surface (431), the first abutting surface (435) is parallel to the second direction, and the second direction is perpendicular to the first direction;
the second locking block (45), the second locking block (45) is arranged on the support (41) in a sliding mode, the second locking block (45) is provided with a second inclined surface (451) and a second abutting surface (453) connected with the second inclined surface (451), in an initial state, the second inclined surface (451) is in sliding contact with the first inclined surface (431), and the second abutting surface (453) is spaced from the first abutting surface (435) in a parallel mode;
the abutting driving piece (44) is arranged on the support (41) and connected with the second locking block (45), the abutting driving piece (44) can drive the second locking block (45) to move along the second direction, and the abutting rod (42) connected with the first locking block (43) is driven to move along the first direction through the matching of the second inclined surface (451) and the first inclined surface (431) until the second abutting surface (453) abuts against the first abutting surface (435); and
the pressing piece (46), the pressing piece (46) includes a pressing driving piece (461) and a pressing block (463), the pressing driving piece (461) is installed on the support (41) and connected with the pressing block (463) to drive the pressing block (463) to move along a third direction to further press against the workpiece (200) to be riveted, and the third direction is perpendicular to the first direction and the second direction.
7. The spin riveter (100) of claim 1, characterized in that the riveting apparatus (2) comprises a base (20), a sliding table (21), a horizontal driving member (22), a riveting head (23) and a rotary driving member (24), the sliding table (21) is slidably connected with the base (20), the horizontal driving member (22) is installed on the base (20) and connected with the sliding table (21) to drive the sliding table (21) to reciprocate along a first direction; the riveting head (23) is rotatably arranged on the sliding table (21), and the rotary driving piece (24) is arranged on the sliding table (21) and connected with the riveting head (23) so as to drive the riveting head (23) to rotate around an axis parallel to the first direction; the horizontal driving piece (22), the riveting head (23) and the rotary driving piece (24) are distributed at intervals along the vertical direction.
8. The spin riveter (100) of claim 7, characterized in that the base (20) comprises a first base (25) and a second base (26), the second base (26) is slidably nested in the first base (25) and locked to the first base (25) by a locking bolt, and the second base (26) is forced to move in a third direction relative to the first base (25) when the locking bolt is in a loose state; the sliding table (21) is connected with the second base (26) in a sliding manner; the horizontal driving member (22) is arranged on the second base (26).
9. The spin riveter (100) of claim 7, characterized in that, the horizontal driving member (22) is a propulsion cylinder or a propulsion cylinder, the horizontal driving member (22) is connected with the sliding table (21) through the connecting piece (5), the connecting piece (5) comprises a first mounting plate (51) and a second mounting plate (53), the first mounting plate (51) is connected with the horizontal driving member (22), the first mounting plate (51) is provided with a slot (511) in a concave manner, the second mounting plate (53) is connected with the sliding table (21), the second mounting plate (53) is provided with a clamping block (531), and the clamping block (531) is clamped with the slot (511).
10. The spin riveting machine (100) according to claim 9, wherein the second mounting plate (53) is connected with the sliding table (21) through a mounting bolt, an elongated sliding hole (217) is formed through the sliding table (21), the length direction of the sliding hole (217) is parallel to the first direction, a mounting hole (533) is formed through the second mounting plate (53), and the mounting bolt penetrates through the mounting hole (533) and the sliding hole (217) to connect the second mounting plate (53) with the sliding table (21).
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| CN202010986737.0A CN112170765A (en) | 2020-09-18 | 2020-09-18 | Spin riveting machine and abutting device thereof |
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| CN202010986737.0A CN112170765A (en) | 2020-09-18 | 2020-09-18 | Spin riveting machine and abutting device thereof |
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| CN112170765A true CN112170765A (en) | 2021-01-05 |
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| CN202010986737.0A Pending CN112170765A (en) | 2020-09-18 | 2020-09-18 | Spin riveting machine and abutting device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115609052A (en) * | 2022-09-29 | 2023-01-17 | 江苏贵钰航空工业有限公司 | Direct-drive milling device and process for high-precision machine tool |
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Application publication date: 20210105 |