CN209867543U - Horizontal broaching machine body and broaching machine thereof - Google Patents
Horizontal broaching machine body and broaching machine thereof Download PDFInfo
- Publication number
- CN209867543U CN209867543U CN201920359083.1U CN201920359083U CN209867543U CN 209867543 U CN209867543 U CN 209867543U CN 201920359083 U CN201920359083 U CN 201920359083U CN 209867543 U CN209867543 U CN 209867543U
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- CN
- China
- Prior art keywords
- pawl
- broaching
- oil cylinder
- broach
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 25
- 239000003921 oil Substances 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model relates to a horizontal broaching machine bed body and broaching machine thereof belongs to the lathe field. The utility model adopts the technical proposal that: the automatic lathe comprises a rectangular frame-shaped lathe bed, wherein a workbench is arranged at the front end of the lathe bed, a broaching hole is formed in the workbench, a piston center hole is formed in the rear end face of the lathe bed, two cylindrical guide rails are arranged inside the lathe bed, two ends of each guide rail are fixed on the rear end faces of the workbench and the lathe bed, the two guide rails are arranged in parallel, a plurality of groups of guide supports are arranged at the lower parts of the guide rails, the guide supports are fixed on the lathe bed, and the upper parts of the guide supports are supporting faces in an open state and are in contact with the lower side faces.
Description
Technical Field
The invention relates to a horizontal broaching machine body and a broaching machine thereof, belonging to the field of machine tools.
Background
The broaching machine is a machine tool which uses a broaching tool as a cutter to machine various formed inner and outer surfaces. And (3) performing linear cutting on the workpiece without moving a cutter during machining.
Because the horizontal hydraulic broaching machine has a long machine body and a deep and long hole is difficult to machine, the current manufacturing method generally adopts turning processing or special machine processing. The concentricity is difficult to ensure due to large turning processing error; the special machine is used for processing, so that the manufacturing cost of the special machine is very high and the period is long.
The existing horizontal hydraulic broaching machine still has some disadvantages when in use:
1. the existing horizontal hydraulic broaching machine has the vibration problem due to long stroke during broaching, and particularly, the problem that the longer the broaching length is, the more prominent the broaching length is, so that the machining precision is reduced, and the production efficiency is greatly influenced.
2. The broaching machine needs to frequently load and unload the broach in the processing, but the positioning of the prior broaching tool and the workpiece supporting plate seat is realized by a manual card inserting mode, the manual operation is troublesome, the workload is large, and the hand is easily stained with oil stains.
3. The long stroke causes the problems of abrasion and deformation caused by pressure of the used guide rail, and influences the processing precision.
Disclosure of Invention
The invention provides a horizontal broaching machine body and a broaching machine thereof, which solve the problems of long stroke of a guide structure, difficult machining of the machine body, abrasion of a guide rail and deformation under pressure and realize automation in mounting, positioning and retracting of a broaching tool.
In order to achieve the purpose, the invention adopts the technical scheme that:
the horizontal broaching machine body comprises a rectangular frame-shaped machine body, wherein a workbench is arranged at the front end of the machine body, a through hole is formed in the workbench, the centering holes of a hydraulic cylinder on the rear end face of the machine body are concentric, two cylindrical guide rails are arranged inside the machine body, two ends of each guide rail are fixed on the workbench and the rear end face of the machine body, the two guide rails are parallel to the concentric holes of a broaching tool and the hydraulic cylinder, a plurality of groups of guide supports are arranged at the lower parts of the guide rails, the guide supports are fixed on the machine body, and the upper parts of the guide supports are open arc-shaped face supporting guide rails.
The guide rail is provided with a working supporting plate, the lower surface of the working supporting plate is provided with a sliding surface which is contacted with the upper surface of the guide rail, the sliding surface is a downward arc-shaped surface, and the working supporting plate is provided with a through hole which is used for connecting the hydraulic oil cylinder rod and the broach and can slide along the guide rail along with the back-and-forth movement of the hydraulic oil cylinder rod.
Preferably, a double-pawl lock is arranged on the front end face of the working supporting plate and comprises a lock body, a pin shaft, a pressure spring and a pawl, one end of the lock body is coaxially and directly connected with a piston rod of a hydraulic oil cylinder, the middle part of the pawl is hinged below the lock body through the pin shaft, the pressure spring is arranged on the inner side of the tail end of the pawl, one end of the pressure spring jacks the tail end of the pawl through the lock body and rotates through the pin shaft in a free state, so that the double pawls are folded to clamp a broach handle, the oil cylinder rod and the broach handle are butted together, a pressure wheel is arranged outside the double pawls, the tail end of the pawl is pressed down by the pressure wheel along with forward pushing of the hydraulic oil cylinder rod, the pressure spring is compressed, and the head of the double pawls is.
Preferably, the rollers are arranged on a roller frame through rotating shafts, the roller frame is fixed on a positioning plate close to the workbench in the broaching machine, the distance between the circumferential surface parts of the two rollers at the opposite inner sides is smaller than the maximum distance between the rear parts of the two swing lock pins in a locked state, and the rollers are positioned in the middle of the extending surfaces of the two fixing plates.
Preferably, the bottom of the bed body is provided with a plurality of groups of support legs with adjustable height, the top of the bed body is an open surface, and the bed body is provided with fixing beams on two side surfaces.
Preferably, the support surface of the guide support is an arc surface for supporting the guide rail, the lower part of the guide support is arranged in the bed body through the mounting frame, and the lower surface of the working supporting plate is an arc surface and can slide along the guide rail.
The broaching machine comprises a machine body, a broaching tool supporting frame and a hydraulic oil cylinder supporting frame. The hydraulic oil cylinder support is arranged at the rear end of the lathe bed, is used for fixing the hydraulic oil cylinder and is concentric with the broaching hole; the broach support frame is arranged at the front end of the lathe bed and is provided with a plurality of groups of broach support rollers to form a rolling guide rail of the broach; the tail end of the broach is provided with a broach withdrawing oil cylinder which is connected with the tail end of the broach so as to carry out automatic feeding and withdrawing.
The front end of a piston rod of the tool retracting oil cylinder is connected with a pawl lock, the pawl lock comprises a lock body, a pin shaft, a pressure spring and a pawl, the rear end of the lock body is coaxially and directly connected with the piston rod of the tool retracting oil cylinder, the middle part of the pawl is hinged to the lock body through the pin shaft, the pressure spring is arranged on the inner side of the tail end of the pawl, one end of the pressure spring jacks up the tail end of the pawl through the lock body in a free state, the pawl is folded through the rotation of the pin shaft, the tail end of a broach is clamped, the tool retracting oil cylinder rod is in butt joint with the tail end of the broach, a pressing wheel is arranged on the lower part of the pawl, and after the tail end of the pawl is compressed by the pressing wheel, a pawl head is.
The invention has the advantages that:
1) the supporting structure of the guide rail is arranged, so that the problems of long-stroke abrasion and compression deformation are avoided, and the service life of the product is prolonged;
2) the installation positioning structure and the tool retracting structure of the broach are arranged, so that the broach is automatically installed and retracted, the production efficiency is improved, and the problem of poor manual operation environment is avoided;
3) the problem that the long-stroke bed body is difficult to machine is solved by using the split multi-wall plate simultaneous machining and reassembling method.
Drawings
Figure 1 is an overall structural view of the bench of the invention,
figure 2 is a cut-away view of the bench of the invention,
figure 3 is an enlarged view of a portion of figure 2,
figure 4 is a side cutaway view of the present invention,
fig. 5 is a top view of the bench of the present invention.
Fig. 6 is a perspective view of the present invention.
Reference numerals:
the automatic broaching machine comprises a machine body 1, a support leg 2, a workbench 3, a working supporting plate 4, a double-pawl lock 5, a broaching tool 6, a pawl lock 7, a guide rail 8, a guide support 9, an oil cylinder 10, a broaching tool supporting frame 11, a hydraulic oil cylinder supporting frame 12, a broaching tool supporting roller 13, a broaching tool supporting roller 14, a tool retracting oil cylinder 15, a fixed beam 16, a piston rod 16, a lock body 501, a pawl 502, a pawl head 503, a roller 505, a roller frame 506, a positioning plate 507, a pressure spring 508 and a broaching tool handle 601.
Detailed Description
The following further explains the specific structure of the present invention:
as shown in figure 1 the utility model discloses horizontal broaching machine bed body, the structure includes the lathe bed 1 of rectangle frame form, and the front end of lathe bed 1 is equipped with workstation 3, and the hole is established to workstation 3, and the rear end face of lathe bed 1 sets up hydro-cylinder installation tang and through-hole. The bottom of the lathe bed 1 is provided with a plurality of groups of support legs 2, the top of the lathe bed 1 is an open surface, and a fixed beam 15 for connecting two side surfaces is arranged.
Two cylindrical guide rails 8 are arranged inside the lathe bed 1, two ends of each guide rail 8 are fixed on oil cylinder connecting plates of the rear end faces of the workbench 3 and the lathe bed 1, the two guide rails 8 and oil cylinder broach holes are arranged in parallel, a plurality of groups of guide supports 9 are arranged on the lower portions of the guide rails 8, the upper portions of the guide supports 9 are supporting faces in an open state and are in contact with the lower faces of the guide rails 8, the supporting faces of the guide supports 9 are matched with the lower faces of the guide rails 8 in an arc face mode, and the lower portions of the guide supports 9 are installed inside the lathe bed 1 through an installation frame. The upper of the guide rail 8 is provided with a working supporting plate 4, the lower side surface of the working supporting plate 4 is provided with an arc-shaped groove, and the inner side surface of the arc-shaped groove is a sliding guide surface and is contacted with the upper side surface of the guide rail 8. The supporting structure of the guide rail arranged at the position and the mounting mode of the working supporting plate can not only realize effective support for the guide rail, but also manually adjust and compensate the precision of the machine tool for abrasion or compression deformation caused by long-time work of the kinematic pair.
A through hole parallel to the two guide rails 8 is arranged above the working supporting plate 4, the through hole is concentric with the piston rod 16 and the tool retracting oil cylinder 14 and is used for supporting and fixing the double-pawl lock 5, the front end of the piston rod 16 is provided with a double-pawl lock, the double-pawl lock comprises a lock body, a pin shaft, a pressure spring and a pawl, one end of the lock body is coaxially and directly connected with the piston rod of the hydraulic oil cylinder, the middle part of the pawl is hinged below the lock body through the pin shaft, the pressure spring is arranged at the inner side of the tail end of the, one end of a pressure spring jacks the tail end of the pawl through a lock body and rotates through a pin shaft, so that the double pawls are folded to clamp the broach handle, the oil cylinder rod and the broach handle are butted together, rollers are arranged outside the double pawls, the tail end of the pawl is pressed down by the rollers and the pressure spring is compressed along with the forward pushing of the hydraulic oil cylinder rod, and the head of the double pawl is opened to separate the double pawl lock from the broach and prepare for the broach withdrawing action.
Two rollers 505 are arranged on the inner side of the front end surface of the bed 1, the rollers 505 are arranged above and below the broaching tool 6, and when the rollers 505 press the rear ends of the swing lock pins 502, the front ends of the swing lock pins 502 open the lock tongues 503 to be disengaged from the broaching tool handles 601 of the broaching tool 6.
The rollers 505 are arranged on the roller frame 506 through rotating shafts, the roller frame 506 is fixed on a positioning plate 507 close to the workbench 3 in the broaching machine, the distance between the circumferential surface parts of the two rollers 505 at the opposite inner sides is smaller than the maximum distance between the rear parts of the two swing lock pins 502 in the locking state, and the rollers 505 are positioned at the middle positions of the extending surfaces of the two fixing plates 501.
The broach is carried out effectual fixed when the action with the fixed knot structure of broach front end that this department set up, can realize loosening of broach through gyro wheel extrusion swing lockpin after work, has realized that the broach is fixed in the mechanical operation who loosens, avoids precision and the greasy dirt problem that artifical direct operation brought.
In order to realize the high-precision processing of the bed body of the horizontal broaching machine, the patent designs a method for manufacturing the bed body of the horizontal broaching machine, which comprises the following steps,
1. the outer surfaces of the upper side surface and one side surface of the lathe bed 1 are precisely machined, the two side surfaces are kept vertical to be used as reference surfaces, and the front end surface and the rear end surface of the workbench 3 are machined to be vertical to the reference surfaces and parallel to each other;
2. fastening a workbench 3 of the lathe body 1, a working supporting plate 4 and an oil cylinder connecting plate at the rear end face of the lathe body 1 in parallel, and then simultaneously processing fixing holes of two guide rails 8 and a central hole of a piston rod 16;
3. the side face of one side of the lathe bed 1 is taken as a reference, the workbench 3 is initially installed, the oil cylinder connecting plate is arranged at the front end and the rear end of the lathe bed 1, and is initially fastened by screws, two concentric rods are used for rotating and aligning the relative positions of the workbench 3, the oil cylinder connecting plate and the frame of the workbench 3, so that the screws are fastened when the concentric rods rotate for a circle smoothly without obvious sinking points, and the concentric rods are fixed by positioning pins.
The assembly method of simultaneously processing multiple concentric holes by using the split multi-wall plate and then aligning by using the concentric rods after remotely pulling open ensures various accuracies such as parallelism, pitch and the like of multiple holes of the lathe bed and improves the installation accuracy of products.
The broaching machine provided with the bed body is structurally shown in figures 1-6 and comprises a machine body 1, a broaching tool support frame 11 and a hydraulic oil cylinder support frame 12, wherein the broaching tool support frame 11 is arranged at the front end of the machine body 1, the hydraulic oil cylinder support frame is arranged at the rear end of the machine body 1, a broaching tool retracting oil cylinder 14 is arranged at the end part of the broaching tool support frame 11, and a piston of the broaching tool retracting oil cylinder 14 is used for fixing a broaching tool 6 to automatically feed and retract the tool. A plurality of broach supporting rollers 13 for supporting the broach 6 are arranged on the broach supporting frame 11; the hydraulic oil cylinder 10 is fixed in the hydraulic oil cylinder supporting frame 12, and a piston of the hydraulic oil cylinder 10 extends into the lathe bed 1 from a piston center hole of an oil cylinder connecting plate on the rear end face of the lathe bed 1.
The front end of a piston of the tool retracting cylinder 14 is provided with a pawl lock 7, the pawl lock 7 comprises a lock body fixed at the front end of the piston, the front end of the lock body is provided with a fixing groove into which a broach 6 extends, the middle part of the pawl is hinged to the lock body through a pin shaft, a pressure spring is arranged on the inner side of the tail end of the pawl, one end of the pressure spring jacks up the tail end of the pawl through the lock body in a free state, the pawl is folded through the pin shaft to clamp the tail end of the broach, a tool retracting cylinder rod is butted with the tail end of the broach together, the lower part of the pawl is provided with a pressure roller, and after the tail end of the pawl is compressed by the pressure.
The structure realizes the operation of withdrawing the broach after processing, and simultaneously realizes the automatic operation of loosening the broach and installing the broach during the broach replacement.
Claims (7)
1. A bed body of a horizontal broaching machine, which comprises a rectangular frame-shaped bed body (1), wherein the front end of the bed body (1) is provided with a workbench (3), the workbench (3) is provided with a broaching hole, and is concentric with the centering hole of the hydraulic oil cylinder at the rear end of the lathe bed (1), two cylindrical guide rails (8) are arranged inside the lathe bed (1), two ends of each guide rail (8) are fixed on the rear end surfaces of the workbench (3) and the lathe bed (1), the two guide rails (8) are parallel to the concentric holes of the broaching tool and the hydraulic oil cylinder, the automatic lathe is characterized in that a plurality of groups of guide supports (9) are arranged at the lower part of the guide rail (8), the guide supports (9) are fixed on the lathe body (1), the upper part of each guide support (9) is an open supporting surface for supporting the guide rail (8), a working supporting plate (4) is arranged on each guide rail (8), a sliding surface which is in contact with the upper side surface of each guide rail (8) is arranged below each working supporting plate, and each sliding surface is an open notch facing downwards.
2. The horizontal broaching machine bed body as claimed in claim 1, wherein the front end surface of the working supporting plate is provided with a double-pawl lock, the double-pawl lock comprises a lock body, a pin shaft, a pressure spring and a pawl, one end of the lock body is coaxially and directly connected with a piston rod of a hydraulic oil cylinder, the middle part of the pawl is hinged below the lock body through the pin shaft, the pressure spring is arranged on the inner side of the tail end of the pawl, in a free state, one end of the pressure spring jacks up the tail end of the pawl through the lock body, the double pawls are folded to clamp a broaching handle through rotation of the pin shaft, the piston rod is butted with the broaching handle, the outer part of the double pawl is provided with a roller, the tail end of the pawl is pressed down by the roller and the pressure spring is compressed along with forward pushing of the hydraulic oil cylinder rod.
3. The horizontal broaching machine bed body according to claim 2, wherein the rollers (505) are arranged on a roller frame (506) through rotating shafts, the roller frame (506) is fixed on a positioning plate (507) close to the workbench (3) in the broaching machine, the distance between the circumferential surface parts of the two rollers (505) at the opposite inner sides is smaller than the maximum distance between the rear parts of the two swing lock pins (502) in the locked state, and the rollers (505) are positioned at the middle position of the extending surfaces of the two fixing plates (501).
4. The horizontal broaching machine body as claimed in claim 1, wherein the bottom of the machine body (1) is provided with a plurality of groups of supporting legs (2) with adjustable height, the top of the machine body (1) is an open surface, and a fixed beam (15) is arranged to connect the two side surfaces.
5. The horizontal broaching machine bed body as claimed in claim 1, wherein the support surface of the guide support (9) is a circular arc surface and contacts with the lower side surface of the guide rail (8), the lower part of the guide support (9) is mounted inside the machine body (1) through a mounting frame, the lower side surface of the work supporting plate (4) is provided with an arc groove, and the inner side surface of the arc groove is the sliding surface.
6. A broaching machine provided with the horizontal broaching machine body of claim 1 is characterized by comprising a machine body (1), a broaching tool support frame (11) and a hydraulic oil cylinder support frame (12), wherein the hydraulic oil cylinder support frame is arranged at the rear end of the machine body, a hydraulic oil cylinder is fixed in the hydraulic oil cylinder support frame, the hydraulic oil cylinder is concentric with a broaching hole, and a piston rod of a hydraulic oil cylinder (10) extends into the machine body (1) from a piston center hole on the rear end surface of the machine body (1); the broach support frame (11) is arranged at the front end of the lathe bed (1) and is provided with a plurality of groups of broach support rollers to form a rolling guide rail of the broach; the end part of the broach support frame (11) is provided with a broach withdrawing oil cylinder (14), and a piston of the broach withdrawing oil cylinder (14) is used for fixing the broach (6) to automatically feed and withdraw the broach.
7. The broaching machine as claimed in claim 6, wherein the piston of the retracting cylinder (14) is provided with a pawl lock (7) at the front end thereof, the pawl lock (7) comprises a lock body fixed at the front end thereof, the middle part of the pawl is hinged to the lock body through a pin shaft, a compression spring is arranged at the inner side of the tail end of the pawl, in a free state, one end of the compression spring pushes up the tail end of the pawl through the lock body, the pawl is closed through the rotation of the pin shaft to clamp the tail end of the broaching tool, a retracting piston rod is butted with the tail end of the broaching tool, the lower part of the pawl is provided with a pressing wheel, and the tail end of the pawl is compressed by the pressing wheel with the forward advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359083.1U CN209867543U (en) | 2019-03-21 | 2019-03-21 | Horizontal broaching machine body and broaching machine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359083.1U CN209867543U (en) | 2019-03-21 | 2019-03-21 | Horizontal broaching machine body and broaching machine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209867543U true CN209867543U (en) | 2019-12-31 |
Family
ID=68955841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359083.1U Withdrawn - After Issue CN209867543U (en) | 2019-03-21 | 2019-03-21 | Horizontal broaching machine body and broaching machine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209867543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773263A (en) * | 2019-03-21 | 2019-05-21 | 山东沃达重工机床有限公司 | Horizontal broaching machine bed body and preparation method thereof, broaching machine |
-
2019
- 2019-03-21 CN CN201920359083.1U patent/CN209867543U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773263A (en) * | 2019-03-21 | 2019-05-21 | 山东沃达重工机床有限公司 | Horizontal broaching machine bed body and preparation method thereof, broaching machine |
| CN109773263B (en) * | 2019-03-21 | 2024-03-05 | 山东沃达重工机床有限公司 | Horizontal broaching machine body, manufacturing method thereof and broaching machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20240305 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191231 Effective date of abandoning: 20240305 |