CN210059979U - Puller assembly of broaching machine - Google Patents
Puller assembly of broaching machine Download PDFInfo
- Publication number
- CN210059979U CN210059979U CN201920852467.7U CN201920852467U CN210059979U CN 210059979 U CN210059979 U CN 210059979U CN 201920852467 U CN201920852467 U CN 201920852467U CN 210059979 U CN210059979 U CN 210059979U
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- China
- Prior art keywords
- cavity
- clamping plate
- broach
- clamp body
- clamping
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- Expired - Fee Related
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model provides a puller component of a broaching machine, which comprises a clamp body, a broaching tool clamping mechanism and an operating mechanism; the clamp body is a cylinder with a circular broach mounting cavity arranged inside and a certain wall thickness, and a sliding cavity which is communicated with the broach mounting cavity and penetrates through the side wall of the clamp body is radially formed in the side wall of the clamp body; the broach clamping mechanism comprises a clamping plate arranged in the sliding cavity, the end part of the clamping plate extends into the broach mounting cavity for clamping the broach, and the clamping plate can slide along the sliding cavity so as to enable the end part of the clamping plate to be hidden in the sliding cavity; the operating mechanism is used for driving the clamping plate to move along the sliding cavity. The utility model discloses realize the fast loading and unloading of broach to can provide the sufficient traction force of broach.
Description
Technical Field
The utility model particularly relates to a pull head subassembly of broaching machine.
Background
At present, when a horizontal broaching machine performs broaching operation, broaches with different diameters need to be clamped and fixed quickly, and the broaches are pulled to perform broaching of a single key groove and a spline groove. The existing common broach clamp generally adopts a sleeve type hoop clamping mode, the size of the hoop is limited, the broach is assembled and disassembled for a long time and force, and the operation is inconvenient and the efficiency is low when the broach is assembled and disassembled; the broach is easy to slide off and damage the cutting edge or cause injury to operators due to improper operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a pull head subassembly of broaching machine realizes the fast loading and unloading of broach to can provide the sufficient traction force of broach.
The utility model adopts the following technical scheme:
a pull head assembly of a broaching machine comprises a clamp body, a broach clamping mechanism and an operating mechanism;
the clamp body is a cylinder with a circular broach mounting cavity arranged inside and a certain wall thickness, and a sliding cavity which is communicated with the broach mounting cavity and penetrates through the side wall of the clamp body is radially formed in the side wall of the clamp body;
the broach clamping mechanism comprises a clamping plate arranged in the sliding cavity, the end part of the clamping plate extends into the broach mounting cavity for clamping the broach, and the clamping plate can slide along the sliding cavity so as to enable the end part of the clamping plate to be hidden in the sliding cavity;
the operating mechanism is used for driving the clamping plate to move along the sliding cavity.
Preferably, the clamping plate comprises a clamping part and a contact part, the clamping part and the contact part are distributed at two ends of the sliding cavity, the radial distance between the clamping part and the contact part along the sliding cavity is greater than the wall thickness of the clamp body, and the clamping plate is also connected with a return spring arranged along the radial direction of the sliding cavity;
the operating mechanism comprises a sliding sleeve sleeved outside the clamp body, the inner wall of the sliding sleeve is tightly attached to the outer wall of the clamp body and can move along the axial direction, and an annular groove capable of accommodating the contact part is further formed in the inner wall of the sliding sleeve; when the inner wall of the sliding sleeve is contacted with the contact part, the end part of the clamping plate extends into the broach mounting cavity, and when the contact part is contacted with the inner wall of the annular groove, the end part of the clamping plate is hidden in the sliding cavity.
Preferably, the operating mechanism further comprises a spring seat and a spring, the spring seat and the spring are sleeved on the outer side of the clamp body, the spring seat is fixed on the clamp body, the spring is connected between the spring seat and the sliding sleeve, the pretightening force of the spring is greater than that of the reset spring, and the distance from the annular groove to the spring seat is greater than that from the sliding cavity to the spring seat.
Preferably, the anchor clamps body includes canned paragraph and operation section, the diameter of canned paragraph is less than the diameter of operation section, broach installation cavity and sliding cavity all are located the operation section, the spring holder is fixed in on the canned paragraph, the sliding sleeve overlaps in the operation section and along the axial displacement of operation section, and the spring is compression state between spring holder and sliding sleeve, and the sliding sleeve tip that is close to the spring holder is equipped with the backstop ring of cover outside the canned paragraph, and when the terminal surface of backstop ring and operation section contacted, the inner wall and the contact site of sliding sleeve contacted.
Preferably, the radial section of the contact part of the clamping plate is semicircular, and two ends of the annular groove in the axial direction of the clamp body are in arc transition.
Preferably, the clamping plate is further provided with a guide groove extending along the length direction of the sliding cavity, the side wall of the clamp body is provided with a guide pin matched with the guide groove, the guide pin is arranged along the axial direction of the parallel broach mounting cavity, and the end part of the guide pin extends into the guide groove.
Preferably, the opening part of broach installation cavity still is equipped with the chamber that holds that the diameter is greater than the broach installation cavity, it is equipped with the uide bushing to hold the intracavity, set up the bell mouth coaxial with the broach installation cavity on the uide bushing, be equipped with parallel broach installation cavity axial on the lateral wall of anchor clamps body, the intercommunication holds pinhole and the screw hole of chamber and sliding chamber, the uide bushing passes through the bolt fastening in the screw hole, the uide pin is located the pinhole, the length of uide pin is greater than the length of pinhole, the one end and the uide bushing of uide pin contact, the other end of uide pin stretches into in the guide slot of sliding chamber.
Preferably, the clamping plate is generally fan-shaped, the contact part is arc-shaped matched with the outer diameter of the clamp body, the clamping part extends in the middle of the clamping plate along the radial direction of the installation cavity, the end face of the clamping part forms a clamping groove for clamping the broach, spring cavities symmetrically distributed on two sides of the clamping part are arranged on the clamping plate, connecting blocks distributed on two sides of the sliding cavity are formed in the sliding cavity of the clamp body, concave cavities corresponding to the spring cavities are arranged on the connecting blocks, and the reset spring is connected between the concave cavities and the spring cavities.
The utility model has the advantages that: when the utility model is used for assembling and disassembling the broach, the machine tool is started to move the sliding sleeve, the clamping plate is bounced into the annular groove of the sliding sleeve under the action of the reset spring, and the broach is inserted into the broach mounting cavity of the pull head; then the machine tool is started to move backwards, the sliding sleeve is pushed back under the action of the spring, the clamping plate is pressed into the clamp body in the process of pushing back, the clamping plate moves along the sliding cavity, the end part of the clamping plate extends into the broach mounting cavity to clamp a pull handle of the broach, the broach is assembled in the clamp body, and the installation is finished; the tool bit can be detached only by repeating the first step, and detachment is also convenient.
Drawings
The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of the clamping plate of the present invention;
fig. 4 is a schematic view of the sliding sleeve operated by the machine tool of the present invention during sliding.
Labeled as: 1. a clamp body; 2. a broach mounting cavity; 3. a slide chamber; 4. a clamping plate; 5. a clamping portion; 6. a contact portion; 7. a return spring; 8. a sliding sleeve; 9. an annular groove; 10. a spring seat; 11. a spring; 12. a guide groove; 13. a guide pin; 14. a guide sleeve; 15. a tapered hole; 16. a clamping groove; 17. connecting blocks; 18. a fixed section; 19. an operation section; 20. a stop ring.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the slider assembly of the broaching machine of the present embodiment includes a clamp body, a broach clamping mechanism, and an operating mechanism; the clamp body 1 is a cylinder with a circular broach mounting cavity 2 arranged inside and a certain wall thickness, and the side wall of the clamp body 1 is radially provided with a sliding cavity 3 which is communicated with the broach mounting cavity 2 and penetrates through the side wall of the clamp body 1; the broach clamping mechanism comprises a clamping plate 4 arranged in the sliding cavity 3, the clamping plate 4 can slide along the sliding cavity 3 so that the end part of the clamping plate 4 extends out of the broach mounting cavity 2 or is hidden in the sliding cavity 3, and the end part of the clamping plate 4 is used for clamping the broach when extending out of the broach mounting cavity 2; the operating mechanism is used for driving the clamping plate 4 to move along the sliding cavity 3; when the broach clamping device is installed, a broach is inserted into a broach installation cavity 2 of the clamp body 1, and the operating mechanism drives the clamping plate 4 to move along the sliding cavity 3, so that the end part of the clamping plate 4 extends into the broach installation cavity 2 and clamps the broach; when the broach is disassembled, the operating mechanism drives the clamping plate 4 to move along the sliding cavity 3, so that the end part of the clamping plate 4 is hidden in the sliding cavity 3, and the broach can be taken out.
Specifically, the clamping plate 4 comprises a clamping part 5 and a contact part 6, the clamping part 5 and the contact part 6 are distributed at two ends of the sliding cavity 3, the radial distance between the clamping part 5 and the contact part 6 along the sliding cavity 3 is greater than the wall thickness of the clamp body 1, the clamping part 5 is positioned on one side of the inner wall of the clamp body 1, the contact part 6 is positioned on one side of the outer wall of the clamp body 1, and the clamping plate 4 is also connected with a return spring 7 arranged along the radial direction of the sliding cavity 3; the operating mechanism comprises a sliding sleeve 8 sleeved outside the clamp body 1, the inner wall of the sliding sleeve 8 is tightly attached to the outer wall of the clamp body 1 and can move axially, an annular groove 9 capable of accommodating the contact part 6 is further formed in the inner wall of the sliding sleeve 8, and in the axial movement process of the sliding sleeve 8 along the clamp body 1, the inner wall of the sliding sleeve 8 is in contact with the contact part 6, the reset spring 7 is compressed, and the clamping part 5 extends into the broach mounting cavity 2; when the annular groove 9 moves to the contact part 6, the clamping plate 4 is reset under the action of the reset spring 7, so that the contact part 6 enters the annular groove 9 to be contacted with the inner wall of the annular groove, and the end part of the clamping plate 4 is hidden in the sliding cavity 3; in order to facilitate the contact part 6 to enter and exit the annular groove 9, the radial section of the contact part 6 of the clamping plate 4 is semicircular, and two ends of the annular groove 9 in the axial direction of the clamp body 1 are in arc transition.
The operating mechanism further comprises a spring seat 10 and a spring 11 which are sleeved outside the clamp body 1, the spring seat 10 is fixed on the clamp body 1, the spring 11 is connected between the spring seat 10 and the sliding sleeve 8, the pretightening force of the spring 11 is larger than the pretightening force of the return spring 7, the distance from the annular groove 9 to the spring seat 10 is larger than the distance from the sliding cavity 3 to the spring seat 10, as the clamping of the broach needs larger clamping force and needs to be kept all the time, the sliding sleeve 8 needs to be completed by means of a machine, in an initial state, under the pretightening force of the spring 11, the inner wall of the sliding sleeve 8 is contacted with the contact part 6, and the clamping part 5 extends out of the broach installation; during installation, the sliding sleeve 8 slides towards the direction close to the spring seat 10 through a machine, when the annular groove 9 moves to the contact part 6, the clamping plate 4 is reset under the action of the reset spring 7, the contact part 6 enters the annular groove 9 to be contacted with the inner wall of the annular groove, and the end part of the clamping plate 4 is hidden in the sliding cavity 3 at the moment, so that the installation of the broach can be carried out; after the force of the machine is removed, under the action of the spring 11, the sliding sleeve 8 slides towards the direction far away from the spring seat 10, the inner wall of the sliding sleeve 8 is contacted with the contact part 6 again, and the clamping part 5 extends into the broach mounting cavity 2 to clamp the broach, so that the mounting of the broach is completed;
the fixture body 1 of the embodiment adopts a stepped shaft form, and comprises a fixed section 18 and an operating section 19, wherein the diameter of the fixed section 18 is smaller than that of the operating section 19, the broach installation cavity 2 and the sliding cavity 3 are both positioned on the operating section 19, the spring seat 10 is fixed on the fixed section 18, the sliding sleeve 8 is sleeved on the operating section 19 and moves along the axial direction of the operating section 19, the spring 11 is in a compression state between the spring seat 10 and the sliding sleeve 8, a stop ring 20 sleeved outside the fixed section 18 is arranged at the end part of the sliding sleeve 8 close to the spring seat 10, and when the stop ring 20 is contacted with the end surface of the operating section 19, the inner wall of the sliding sleeve 8 is contacted with the contact part 6; namely, the spring 11 is always in a compressed state, and the sliding sleeve 8 is limited to be incapable of moving, so that better clamping force can be provided for the broach.
In order to provide a guiding effect when the clamping plate 4 moves, the clamping plate 4 is further provided with a guide groove 12 extending along the radial direction of the sliding cavity 3, a guide pin 13 matched with the guide groove 12 is arranged on the side wall of the clamp body 1, the guide pin 13 is arranged along the axial direction parallel to the broach mounting cavity 2, the end part of the guide pin 13 extends into the guide groove 12, and the guide pin 13 is matched with the guide groove 12 to play a guiding effect, so that the clamping plate 4 can move correctly.
Specifically, the opening part of broach installation cavity 2 still is equipped with the chamber that holds that the diameter is greater than broach installation cavity 2, it is equipped with uide bushing 14 to hold the intracavity, set up taper hole 15 coaxial with broach installation cavity 2 on the uide bushing 14, make things convenient for the broach to pass taper hole 15 and get into broach installation cavity 2 in, be equipped with parallel broach installation cavity 2 axial on the lateral wall of anchor clamps body 1, the intercommunication holds the pinhole and the screw hole of chamber and sliding chamber 3, the pinhole sets up with pressing from both sides tight piece 4 corresponding respectively, the screw hole is in the circumference evenly distributed who holds the chamber, uide bushing 14 fastens in the screw hole through the bolt, uide pin 13 is located the pinhole, the length of uide pin 13 is greater than the length of pinhole, the one end of uide pin 13 contacts with uide bushing 14, the other end of uide pin 13 stretches into in the guide.
As shown in fig. 2 and 3, the clamping plate 4 of this embodiment is substantially fan-shaped, the contact portion 6 is arc-shaped and matched with the outer diameter of the clamp body 1, the contact area between the contact portion 6 and the inner wall of the sliding sleeve 8 is larger, the clamping portion 5 extends in the middle of the clamping plate 4 along the radial direction of the broach mounting cavity 2, the end surface of the clamping portion 5 forms a clamping groove 16 for clamping the broach, the clamping plate 4 is provided with spring cavities symmetrically distributed on both sides of the clamping portion 5, the clamp body 1 forms connecting blocks 17 distributed on both sides of the sliding cavity 3 at the sliding cavity 3, the opposite inner sides of the two connecting blocks 17 form an arc shape with the same diameter as the broach mounting cavity 2, the connecting blocks 17 are provided with cavities corresponding to the spring cavities, and the return spring 7 is connected between the cavities and the spring cavities.
The utility model discloses a theory of operation:
during assembly, as shown in fig. 4, a semicircular top sleeve 21 is fixed on the inner side of the broaching machine, and through forward movement of the machine tool, the semicircular top sleeve 21 supports against the sliding sleeve 8, so that the sliding sleeve 8 moves towards the direction close to the spring seat 10 until the clamping plate 4 is bounced into the annular groove 9 of the sliding sleeve 8 under the action of the return spring 7, the machine tool stops moving, and the broaching tool is inserted into the broaching tool mounting cavity 2;
then the machine tool is started to move backwards, the sliding sleeve 8 is pushed back under the action of the spring 11, the clamping plate 4 is pressed into the clamp body 1 in the reverse pushing process, the clamping plate 4 moves along the sliding cavity 3, the end part of the clamping plate 4 extends into the broach mounting cavity 2 to clamp a pull handle of the broach, and the broach is assembled in the clamp body 1, namely the installation is finished; the tool bit can be detached only by repeating the first step, and detachment is also convenient.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pull head assembly of a broaching machine is characterized by comprising a clamp body, a broach clamping mechanism and an operating mechanism;
the clamp body is a cylinder with a circular broach mounting cavity arranged inside and a certain wall thickness, and a sliding cavity which is communicated with the broach mounting cavity and penetrates through the side wall of the clamp body is radially formed in the side wall of the clamp body;
the broach clamping mechanism comprises a clamping plate arranged in the sliding cavity, the end part of the clamping plate extends into the broach mounting cavity for clamping the broach, and the clamping plate can slide along the sliding cavity so as to enable the end part of the clamping plate to be hidden in the sliding cavity;
the operating mechanism is used for driving the clamping plate to move along the sliding cavity.
2. The puller assembly of the broaching machine as recited in claim 1, wherein the clamping plate comprises a clamping portion and a contact portion, the clamping portion and the contact portion are arranged at two ends of the sliding cavity, the radial distance between the clamping portion and the contact portion along the sliding cavity is larger than the wall thickness of the clamp body, and the clamping plate is further connected with a return spring arranged along the radial direction of the sliding cavity;
the operating mechanism comprises a sliding sleeve sleeved outside the clamp body, the inner wall of the sliding sleeve is tightly attached to the outer wall of the clamp body and can move along the axial direction, and an annular groove capable of accommodating the contact part is further formed in the inner wall of the sliding sleeve; when the inner wall of the sliding sleeve is contacted with the contact part, the end part of the clamping plate extends into the broach mounting cavity, and when the contact part is contacted with the inner wall of the annular groove, the end part of the clamping plate is hidden in the sliding cavity.
3. The pull head assembly of the broaching machine as recited in claim 2, wherein the operating mechanism further comprises a spring seat and a spring, the spring seat is sleeved outside the clamp body and is fixed on the clamp body, the spring is connected between the spring seat and the sliding sleeve, the pretightening force of the spring is greater than the pretightening force of the return spring, and the distance from the annular groove to the spring seat is greater than the distance from the sliding cavity to the spring seat.
4. The pull head assembly of the broaching machine as claimed in claim 3, wherein the fixture body comprises a fixed section and an operating section, the diameter of the fixed section is smaller than that of the operating section, the broaching tool mounting cavity and the sliding cavity are both located on the operating section, the spring seat is fixed on the fixed section, the sliding sleeve is sleeved on the operating section and moves axially along the operating section, the spring is in a compression state between the spring seat and the sliding sleeve, a stop ring sleeved outside the fixed section is arranged at the end part of the sliding sleeve close to the spring seat, and when the stop ring is in contact with the end surface of the operating section, the inner wall of the sliding sleeve is in contact with the contact part.
5. The slider assembly of a broaching machine as recited in any one of claims 2 to 4, wherein the radial cross section of the contact portion of the clamping plate is semicircular, and the annular groove is rounded at both ends in the axial direction of the jig body.
6. The slider assembly of a broaching machine as claimed in claim 5, wherein the clamping plate is further provided with a guide groove extending along the length direction of the slide cavity, the side wall of the clamp body is provided with a guide pin matched with the guide groove, the guide pin is arranged along the axial direction parallel to the broach mounting cavity, and the end part of the guide pin extends into the guide groove.
7. The pull head assembly of the broaching machine as claimed in claim 6, wherein a receiving cavity with a diameter larger than that of the broaching mounting cavity is further formed at the opening of the broaching mounting cavity, a guide sleeve is arranged in the receiving cavity, a tapered hole coaxial with the broaching mounting cavity is formed in the guide sleeve, a pin hole and a threaded hole which are parallel to the axial direction of the broaching mounting cavity and communicate the receiving cavity with the sliding cavity are formed in the side wall of the clamp body, the guide sleeve is fastened in the threaded hole through a bolt, the guide pin is located in the pin hole, the length of the guide pin is larger than that of the pin hole, one end of the guide pin is in contact with the guide sleeve, and the other end of the guide pin extends into a guide groove of the sliding cavity.
8. The slider assembly of a broaching machine as claimed in claim 6 or 7, wherein the clamping plate is substantially fan-shaped, the contact portion is arc-shaped and matched with the outer diameter of the clamp body, the clamping portion extends in the middle of the clamping plate along the radial direction of the mounting cavity, the end surface of the clamping portion forms a clamping groove for clamping the broaching tool, the clamping plate is provided with spring cavities symmetrically distributed on two sides of the clamping portion, the clamp body forms connecting blocks distributed on two sides of the sliding cavity at the sliding cavity, the connecting blocks are provided with concave cavities corresponding to the spring cavities, and the return spring is connected between the concave cavities and the spring cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852467.7U CN210059979U (en) | 2019-06-06 | 2019-06-06 | Puller assembly of broaching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852467.7U CN210059979U (en) | 2019-06-06 | 2019-06-06 | Puller assembly of broaching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210059979U true CN210059979U (en) | 2020-02-14 |
Family
ID=69456739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920852467.7U Expired - Fee Related CN210059979U (en) | 2019-06-06 | 2019-06-06 | Puller assembly of broaching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210059979U (en) |
-
2019
- 2019-06-06 CN CN201920852467.7U patent/CN210059979U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |