CN215941348U - Novel tool for manufacturing steel bar heading and novel heading machine - Google Patents
Novel tool for manufacturing steel bar heading and novel heading machine Download PDFInfo
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- CN215941348U CN215941348U CN202120744659.3U CN202120744659U CN215941348U CN 215941348 U CN215941348 U CN 215941348U CN 202120744659 U CN202120744659 U CN 202120744659U CN 215941348 U CN215941348 U CN 215941348U
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Abstract
The utility model discloses a novel steel bar heading manufacturing tool and a novel heading machine, which comprise a clamp and a hammer head, wherein the hammer head is positioned at one end of the clamp, and the end surface of the hammer head is provided with a counter bore; anchor clamps are including relative first anchor clamps portion and the second anchor clamps portion that sets up, the relative side of first anchor clamps portion and second anchor clamps portion is equipped with the recess respectively, the recess is equipped with the heading groove near the one end of tup, 1 shape and the shape looks adaptation of reinforcing bar heading of constituteing to the heading groove. The steel bar heading machine can produce steel bar heading heads with different heading head shapes, improves the production efficiency and reduces the labor intensity of operators.
Description
Technical Field
The utility model relates to the field of production of prefabricated parts, in particular to a novel tool for manufacturing a steel bar heading and a novel heading machine.
Background
As shown in fig. 1, the upset shape of the conventional precast pile cage bar is a flat head, and when the upset shape of the conventional equipment is used, the flat head is eccentric and asymmetrical, which may affect the assembly of the upset head and the end plate in a next process. Therefore, the external shape of the existing upset head is limited, the external dimension of the upset head can be effectively controlled, and the gap control during the assembly of the upset head and the end plate is ensured.
The pre-tensioned concrete precast pile is used as a new building product and is widely applied to the construction of various industries. In order to improve the bending resistance of a precast pile product, in the manufacturing stage of a steel reinforcement cage, end plates with a plurality of counter sink holes are required to be installed at two ends of a precast pile die, upset heads in an enlarged head shape are processed at two ends of a plurality of longitudinal steel reinforcements of the steel reinforcement cage, the upset heads with the same number at two sides are respectively clamped in the counter sink holes of the end plates at two ends, then the end plate at one end is fixed, and a tensioning plate and the end plate are fixed by a tensioning bolt. The longitudinal bars of the steel reinforcement cage are stretched through the tensioning plate by hydraulic tensioning equipment, and the steel reinforcement cage is kept in a stretched state by adopting an anchoring device after stretching is completed. Then, concrete is poured into the mould, after the concrete is solidified, the anchoring device is loosened, the reinforcement cage cemented with the concrete cannot rebound, and the prestress of the longitudinal reinforcement is kept all the time, so that the bending resistance of the whole precast pile is improved.
At present, the steel bars of almost all pre-tensioning concrete precast piles adopt tail end upsets at two ends, the upsets are clamped in end plate countersunk holes at two ends, the end plates are connected with the tensioning plates through mounting bolts and then tensioned, after concrete is solidified, the bolts are removed, the tensioning plates are removed and then reused, and the end plates and the concrete form an integrated precast pile product.
The technical problems existing in the mode are as follows:
1. the size of the tail end upset head can greatly float, the condition of flash and burrs can affect the assembly fit clearance with the end plate, the size of the tail end upset head is small, the tensile property can be reduced, the phenomenon of head breaking can easily occur during tensioning, the size of the tail end is large, the assembly with the end plate can be affected, the production efficiency is reduced, and the labor intensity of operators is increased.
2. The clamp of the heading machine has short service life, and the heading groove of the clamp needs to be scrapped and replaced by a new clamp after being worn, thereby invisibly increasing the use cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model is realized by the following technical scheme:
the utility model provides a novel tool for manufacturing a steel bar heading, which comprises a clamp and a hammer head, wherein the hammer head is positioned at one end of the clamp, and the end surface of the hammer head is provided with a counter bore; anchor clamps are including relative first anchor clamps portion and the second anchor clamps portion that sets up, the relative side of first anchor clamps portion and second anchor clamps portion is equipped with the recess respectively, the recess is equipped with the heading groove near the one end of tup, 1 shape and the shape looks adaptation of reinforcing bar heading of constituteing to the heading groove.
Further, the shape of the pair of upset head grooves is conical, oval, runway or chamfer rectangle.
Furthermore, the shape formed by the 1 pair of grooves is matched with the shape of the steel bar.
Further, the shape of the 1 pair of grooves is semicircular, semi-elliptical, triangular or trapezoidal.
Further, each side surface of the first clamp part and the second clamp part is provided with a groove.
Further, the center of tup is equipped with the tup pivot, the counter sink is equipped with a plurality ofly, and uses the tup pivot is central evenly distributed at the terminal surface of tup.
The utility model also provides a novel heading machine, which comprises the novel steel bar heading manufacturing tool, and further comprises a heading oil cylinder and a hammer head sleeve, wherein the heading oil cylinder is fixed at one end of the heading machine, an oil cylinder rod of the heading oil cylinder is connected with the hammer head along the central axis of the hammer head, and the hammer head is sleeved in the hammer head sleeve and can slide back and forth in the hammer head sleeve.
The heading machine is characterized by further comprising a clamping oil cylinder and a guide rail, wherein the clamp is arranged at the other end of the heading machine through the guide rail, an oil cylinder rod of the clamping oil cylinder is detachably connected with the clamp, and the clamp can be driven to slide left and right along the guide rail.
Furthermore, the clamping oil cylinder is arranged on two sides or on one side.
Furthermore, the fixture and the hammer head are respectively connected with a power supply, and the power supply applies short-circuit currents with different potentials to the fixture and the hammer head respectively.
The utility model has the beneficial effects that:
the novel tool for manufacturing the steel bar heading and the novel heading machine can be used for producing the steel bar heading with different heading shapes, and solve the problems that the shape and the size of the heading are not easy to control and the fit clearance between the heading and an end plate is not easy to control in the existing steel bar heading, the production efficiency is improved, and the labor intensity of operators is reduced; the heading produced by the tool changes the current situation of a heading stress concentration point at the joint of the heading and the main rib, and improves the performance of a product; the mounting mode of anchor clamps is adjusted the back, can carry out repetitious usage, and life is very prolonged, has reduced use cost in the intangible.
Drawings
Figure 1 is a schematic view of a prior art upset head;
FIG. 2 is a schematic view of an improved upset head of a steel bar in an inverted conical shape;
FIG. 3 is a schematic view of the structure of the utility model in combination with a hammer head; (ii) a
Fig. 4 is a schematic end view of a hammer head of the present invention;
FIG. 5 is a cross-sectional schematic view of the clamp of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line A of the fixture of FIG. 5 with the grooves in a semi-circular configuration;
FIG. 7 is a schematic cross-sectional view taken along the line A of the fixture of FIG. 5 with the recess having a semi-elliptical configuration;
FIG. 8 is a schematic cross-sectional view taken along the line A of FIG. 5 showing the triangular configuration of the grooves;
FIG. 9 is a schematic cross-sectional view taken along the line A of FIG. 5, wherein the grooves of the fixture are trapezoidal in configuration;
FIG. 10 is a schematic view of FIG. 5 taken along line B;
FIG. 11 is a schematic structural view of the heading machine of the present invention;
wherein: 1. heading machine; 10. reinforcing steel bars; 101. heading; 11. upsetting and calcining oil cylinders; 12. a hammer head sleeve; 13. clamping the oil cylinder; 14. a guide rail; 2. a clamp; 21. a first clamp part; 22. a second clamp portion; 23. a groove; 231. heading grooves; 3. a hammer head; 31. a countersunk hole; 32. a hammer head rotating shaft; 4. a wire; 5. a power source.
Detailed Description
The preferred mechanisms and methods of motion realization of the present invention are further described below in conjunction with the figures and the detailed description.
Example 1
Figure 2 shows a novel form of upset on the bar 10, the end of the upset being a conical upset 101. The conical upset is only one form of rebar upset, and the shape of the upset in this embodiment is not limited to the conical shape shown in the figures,
as shown in fig. 3-11, a novel heading making tool comprises a fixture 2 and a hammer head 3;
as shown in fig. 3, the hammer 3 is located at one end of the fixture 2, and a counter bore 31 is formed in an end surface of the hammer 3 opposite to the fixture 2; the cross section of the hammer head 3 is circular or polygonal.
As shown in fig. 4, a hammer head rotating shaft 32 is arranged in the center of the hammer head 3, the hammer head 3 rotates around the hammer head rotating shaft 32, a plurality of counter bores 31 in the hammer head 3 are uniformly distributed on the end surface of the hammer head 3 around the hammer head rotating shaft 32, the purpose of the plurality of counter bores 31 is that after steel bar heading is performed for a long time, the counter bores 31 are easily worn, and when one of the counter bores is worn, the hammer head can be rotated, and the other counter bore 31 is replaced to continue heading.
As shown in fig. 5, the clamp 2 includes a first clamp portion 21 and a second clamp portion 22 disposed opposite to each other, the opposite sides of the first clamp portion 21 and the second clamp portion 22 are respectively provided with a groove 23 for clamping the steel bar 10, the two corresponding grooves 23 are 1 pair of grooves 23, the shape of the 1 pair of grooves 23 matches the shape of the steel bar, for example, the groove is semicircular as shown in fig. 6, semi-elliptical as shown in fig. 7, triangular as shown in fig. 8, and trapezoidal as shown in fig. 9, and the shape of the groove 23 includes, but is not limited to, the aforementioned shapes as long as the steel bar 10 can be clamped.
One end of the groove 23 close to the hammer head 3 is provided with a pair of heading head grooves 231, and the shape of 1 pair of heading head grooves 231 is matched with that of the steel bar heading head. The upset recess 231 may be conical, as shown in figures 3 and 5, or may be oval, racetrack, or chamfered rectangular, or otherwise shaped to conform to the upset of the bar.
Fig. 6 to 10 show only the case where the grooves 23 are provided on 2 sides of the first and second clamp parts 21 and 22, and the grooves 23 may be provided on each side of the first and second clamp parts 21 and 22 according to production needs.
Example 2
As shown in fig. 11, a novel heading machine 1 comprises the above-mentioned clamp 2 and hammer head 3, and further comprises a heading cylinder 11, a hammer head sleeve 12, a clamping cylinder 13, and a guide rail 14.
The upsetting oil cylinder 11 is fixed at one end of the upsetting machine 1, an oil cylinder rod of the upsetting oil cylinder 11 is connected with the hammer head 3 along the central axis of the hammer head 3, the hammer head sleeve 12 is fixed on the upsetting machine 1, and the hammer head 3 is sleeved in the hammer head sleeve 12 and can slide back and forth in the hammer head sleeve 12.
The clamp 2 is arranged at the other end of the heading machine 1 through a guide rail 14, and an oil cylinder rod of the clamping oil cylinder 13 is detachably connected with the clamp 2, so that the clamp 2 can be driven to slide left and right along the guide rail 14, and the steel bar is clamped conveniently.
The clamping cylinders 13 may be arranged bilaterally, that is, 2 clamping cylinders 13 are respectively connected to the first clamp part 21 and the second clamp part 22 and symmetrically arranged along the central axis of the cylinder rod of the upsetting cylinder 11 and the hammer head 3. When the clamping cylinder 13 drives the clamp 2 to be in a clamping state, the center line of the groove 23 of the clamp 2 is aligned with the central axis of the cylinder rod of the upsetting cylinder 11 and the central axis of the hammer head 3. Thereby ensuring that the upset head of the reinforcing steel bar is not eccentric. When the clamping cylinder 13 is released, the first clamp portion 21 and the second clamp portion 22 move in opposite directions, and the clamp 2 is released.
The clamping cylinder 13 may also be arranged on one side, i.e. one of the first clamp part 21 or the second clamp part 22 is fixed and the other is driven by the clamping cylinder 13.
The holder 2 is connected to one potential of a power source 5 via a lead 4, and the hammer head 3 is connected to the other potential of the power source 5 via the lead 4. After the power is on, the reinforcing steel bar 10 can be heated and softened under the action of current, which is beneficial to forming the upset head of the reinforcing steel bar.
The steel bar 10 is clamped in the groove 23 by the clamp 2 driven by the clamping cylinder 13, the end of the steel bar is propped against the counter bore 31 of the hammer head 3, different electric potentials are applied between the hammer head 32 and the clamp 2, when short-circuit current flows on the steel bar 10, the steel bar 10 is heated and softened under the action of the current, the upsetting oil cylinder 11 drives the hammer head 3 to move towards the steel bar, and the counter bore 31 of the hammer head 3 and the heading groove 231 act together to extrude the end of the steel bar 10 into the heading.
The novel heading machine 1 is used for manufacturing the steel bar heading as follows:
the method comprises the following steps: after the reinforcing steel bars are cut to a fixed length, the end parts of the reinforcing steel bars 10 are abutted against the counter sink holes 31 of the hammer heads 3, the clamp 2 driven by the clamping oil cylinder 13 moves towards the middle to clamp the reinforcing steel bars 10, and the reinforcing steel bars 10 are tightly clamped in the grooves 23;
step two: the power supply 5 applies different electric potentials to the hammer head 3 and the clamp 2 through the lead 4 respectively, short-circuit current flows on the steel bar 10, the steel bar 10 is heated and softened under the action of the current, then the upsetting oil cylinder 11 drives the hammer head 3 to move towards the steel bar 10, the deformation of the steel bar 10 in the counter bore 31 is limited by the counter bore 31, and the steel bar 10 between the hammer head 3 and the clamp 2 is extruded to form a required upset head shape;
step three: the power supply 5 is disconnected, the upsetting oil cylinder 11 drives the hammer 3 to retreat, and then the clamp 2 driven by the clamping oil cylinder 13 moves towards two sides to loosen the reinforcing steel bars 10.
At this point, the reinforcing steel bar 10 is processed by the heading 101 to obtain a finished product.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (10)
1. The novel tool for manufacturing the steel bar heading is characterized by comprising a clamp (2) and a hammer head (3), wherein the hammer head (3) is positioned at one end of the clamp (2), and the end surface of the hammer head (3) is provided with a counter bore (31); anchor clamps (2) are including relative first anchor clamps portion (21) and the second anchor clamps portion (22) that set up, the side that first anchor clamps portion (21) and second anchor clamps portion (22) are relative is equipped with recess (23) respectively, recess (23) are equipped with heading groove (231) in the one end that is close to tup (3), and 1 shape and the shape looks adaptation of reinforcing bar heading of constituteing to heading groove (231).
2. The new upsetting tool as recited in claim 1, wherein the shape of the 1 pair of upsetting grooves (231) is conical, or elliptical, or racetrack, or rectangular with chamfered corners.
3. A new upsetting tool as recited in claim 1, wherein said 1 pair of grooves (23) are formed in a shape matching the shape of the bars.
4. The new heading tool for reinforcing bars as claimed in claim 3, wherein said 1 pair of grooves (23) are formed in a semicircular, semi-elliptical, triangular, or trapezoidal shape.
5. A new heading tool for reinforcing bars, according to claim 1, characterized in that said first clamp portion (21) and said second clamp portion (22) are provided with a groove (23) on each side.
6. The novel tool for manufacturing the steel bar heading as claimed in claim 1, wherein a plurality of hammer head rotating shafts (32) are arranged in the center of the hammer head (3), and the plurality of hammer head holes (31) are uniformly distributed on the end surface of the hammer head (3) by taking the hammer head rotating shafts (32) as the center.
7. The novel heading machine is characterized by comprising the novel steel bar heading manufacturing tool as claimed in any one of claims 1 to 6, and further comprising a heading oil cylinder (11) and a hammer head sleeve (12), wherein the heading oil cylinder (11) is fixed at one end of the heading machine (1), an oil cylinder rod of the heading oil cylinder (11) is connected with the hammer head (3) along the central axis of the hammer head (3), and the hammer head (3) is sleeved in the hammer head sleeve (12) and can slide back and forth in the hammer head sleeve (12).
8. The novel heading machine according to claim 7, further comprising a clamping cylinder (13) and a guide rail (14), wherein the clamp (2) is arranged at the other end of the heading machine (1) through the guide rail (14), and a cylinder rod of the clamping cylinder (13) is detachably connected with the clamp (2) and can drive the clamp (2) to slide left and right along the guide rail (14).
9. Heading machine according to claim 8, characterized in that said clamping cylinder (13) is arranged bilaterally or unilaterally.
10. The heading machine according to claim 7, wherein the clamp (2) and the hammer head (3) are respectively connected with a power source (5), and the power source (5) applies short-circuit currents with different potentials to the clamp (2) and the hammer head (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120744659.3U CN215941348U (en) | 2021-04-12 | 2021-04-12 | Novel tool for manufacturing steel bar heading and novel heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120744659.3U CN215941348U (en) | 2021-04-12 | 2021-04-12 | Novel tool for manufacturing steel bar heading and novel heading machine |
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| CN215941348U true CN215941348U (en) | 2022-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749139A (en) * | 2022-12-22 | 2023-03-07 | 贝正南京工程技术有限公司 | Prestressed carbon fiber bar with two-end conical anchoring end and manufacturing method thereof |
-
2021
- 2021-04-12 CN CN202120744659.3U patent/CN215941348U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115749139A (en) * | 2022-12-22 | 2023-03-07 | 贝正南京工程技术有限公司 | Prestressed carbon fiber bar with two-end conical anchoring end and manufacturing method thereof |
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