CN213164030U - Six-shaft automatic variable-pitch tightening machine - Google Patents
Six-shaft automatic variable-pitch tightening machine Download PDFInfo
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- CN213164030U CN213164030U CN202021873455.1U CN202021873455U CN213164030U CN 213164030 U CN213164030 U CN 213164030U CN 202021873455 U CN202021873455 U CN 202021873455U CN 213164030 U CN213164030 U CN 213164030U
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Abstract
The utility model discloses a six-axis automatic variable pitch tightening machine, which comprises a bolt tightening mechanism, wherein the bolt tightening mechanism comprises six tightening guns, each tightening gun is independently fixed on an adjusting plate, and all six adjusting plates are positioned in the same horizontal plane; the six tightening guns are divided into three groups, each group comprises two tightening guns, a connecting plate is arranged above two adjusting plates for correspondingly fixing the two tightening guns of each group, and correspondingly, the connecting plate is provided with three groups; the distance between each group of two tightening guns is adjusted through a variable-pitch cylinder; and the distance between every two adjacent groups of tightening guns is adjusted by an automatic variable-pitch linear motor. The utility model discloses a linear electric motor and displacement cylinder come the adjustment and respectively screw up the interval between the rifle, and concrete structure settings such as six adjusting plates of deuterogamying can realize the steady adjustment of the automatic displacement of screwing up the rifle to it is simple to have the rifle interval adjustment process of screwing up, and the precision is high, advantages such as work efficiency height.
Description
Technical Field
The utility model belongs to the technical field of automobile engine assembly line and specifically relates to a machine is screwed up to six automatic displacement types that are used for cylinder body bolt to screw up is related to.
Background
The automobile engine is a machine for providing power for the automobile, and influences the dynamic property, the economical efficiency and the environmental protection property of the automobile. In the assembly process of an automobile engine, a cylinder cover and a cylinder body need to be screwed up through bolts, specifically, the cylinder cover conveyed on a production line is firstly sleeved with the bolts and the cylinder body is screwed up manually, then the cylinder cover is conveyed to a screwing station along with the production line, and a plurality of screwing guns are used for screwing up simultaneously. Aiming at cylinder bodies of different models, the number of bolts on the cylinder bodies is different, for example, 4 bolts need to be screwed simultaneously for a single cylinder, 6 bolts need to be screwed simultaneously for double cylinders, and the distance between adjacent bolts is different, so that the distance between tightening guns needs to be adjusted. At present, a servo motor is mostly adopted to drive a screw rod for transmission so as to adjust the distance between adjacent tightening guns, the structure is complex and tedious, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem, the utility model provides a machine is screwed up to six automatic displacement types.
The utility model discloses the technical solution who adopts is:
a six-axis automatic variable-pitch tightening machine comprises a bolt tightening mechanism, wherein the bolt tightening mechanism comprises six tightening guns, each tightening gun is independently fixed on an adjusting plate, and all six adjusting plates are located in the same horizontal plane; the six tightening guns are divided into three groups, each group comprises two tightening guns, a connecting plate is arranged above two adjusting plates for correspondingly fixing the two tightening guns of each group, and correspondingly, the connecting plate is provided with three groups;
the distance between each group of two tightening guns is adjusted through a variable-pitch cylinder, a cylinder body of the variable-pitch cylinder is fixed at the bottom of one adjusting plate, the tail end of a cylinder rod of the variable-pitch cylinder is connected with the other adjusting plate, a first sliding block is arranged at the upper part of the adjusting plate, a first sliding rail is arranged above the two adjusting plates and corresponds to the bottom of the connecting plate, and the first sliding block is matched with the first sliding rail;
the distance between every two adjacent groups of tightening guns is adjusted through an automatic variable-pitch linear motor, the rotors on the automatic variable-pitch linear motor are in transmission connection with the connecting plates, each rotor is correspondingly connected with one connecting plate, and the automatic variable-pitch linear motor is fixed on the valve seat plate; the upper part of the connecting plate is provided with a second sliding block, the valve seat plate is provided with a second sliding rail, the second sliding block is matched with the second sliding rail, and the first sliding rail and the second sliding rail are vertically arranged.
Preferably, the tightening machine further comprises an adjusting mechanism for driving the bolt tightening mechanism to move up and down, the adjusting mechanism comprises an adjusting cylinder and a top fixing frame, a third sliding rail is vertically arranged on the top fixing frame, a side plate is arranged on one side of the valve seat plate, a third sliding block is arranged on the outer side surface of the side plate, and the third sliding block is matched with the third sliding rail; the adjusting cylinder is installed on the top fixing frame, and the tail end of a cylinder rod of the adjusting cylinder is connected with the valve seat plate.
Preferably, the tightening machine further comprises a jacking mechanism for positioning and jacking workpieces on the production line, the jacking mechanism comprises a bottom fixing frame, the bottom fixing frame is arranged below the production line, a jacking plate is arranged at the center of the bottom fixing frame, the bottom of the jacking plate is connected with a cylinder rod of a jacking cylinder, positioning pins are arranged above two ends of the jacking plate, and supporting columns are arranged at four corners of the jacking plate.
Preferably, the bottom of each adjusting plate is provided with two guide mechanisms, one of the two guide mechanisms is arranged at the bottom of the three adjusting plates on the same side, and the other guide mechanism is arranged at the bottom of the three adjusting plates on the other side; the guide mechanism comprises a guide rod, three guide blocks are arranged on the guide rod, and each guide block is correspondingly connected with one adjusting plate.
The utility model has the beneficial technical effects that:
the utility model discloses a linear electric motor and displacement cylinder come the adjustment and respectively screw up the interval between the rifle, and concrete structure settings such as six adjusting plates of deuterogamying can realize the steady adjustment of the automatic displacement of screwing up the rifle to it is simple to have the rifle interval adjustment process of screwing up, and the precision is high, advantages such as work efficiency height.
Drawings
The present invention will be further explained with reference to the following detailed description and accompanying drawings:
fig. 1 is a schematic view of the overall structure of a six-axis automatic variable pitch type tightening machine of the present invention;
fig. 2 is a schematic structural view of a bolt tightening mechanism according to the present invention;
FIG. 3 is an upper angled view of FIG. 2;
FIG. 4 is another angular view of the upper portion of FIG. 2;
FIG. 5 is a bottom perspective view of the bolt tightening mechanism of the present invention;
FIG. 6 is a bottom elevational view of FIG. 5;
FIG. 7 is a schematic view of the structure principle of a single-group tightening gun in the bolt tightening mechanism of the present invention;
fig. 8 is a schematic view of the structural principle of the jacking mechanism of the present invention;
fig. 9 is the overall structure schematic diagram of the six-axis automatic variable pitch tightening machine of the present invention installed on the production line.
Detailed Description
With the attached drawings, the six-axis automatic variable pitch tightening machine comprises a jacking mechanism 1, a bolt tightening mechanism 2 and an adjusting mechanism 3 for driving the bolt tightening mechanism 2 to move up and down. The jacking mechanism 1 comprises a bottom fixing frame 101, the bottom fixing frame 101 is arranged below the assembly line 4, a jacking plate 102 is arranged at the center of the bottom fixing frame 101, and the bottom of the jacking plate 102 is connected with a cylinder rod of a jacking cylinder 103. Positioning pins 104 are provided above both ends of the lifting plate 102, and support columns 105 are provided at the four corners of the lifting plate. The jacking cylinder 103 can drive the jacking plate 102 to move up and down, and the positioning pin 104 is matched with a pin hole of an upper workpiece, so that the positioning function of the upper workpiece to be jacked can be achieved.
The bolt tightening mechanism 2 comprises six tightening guns 201, each tightening gun 201 is independently fixed on one adjusting plate 202, and all six adjusting plates 202 are located in the same horizontal plane. The six tightening guns 201 are divided into three groups, each group comprises two tightening guns, and the whole tightening guns are arranged in two rows. A connecting plate 203 is arranged above two adjusting plates for correspondingly fixing each group of two tightening guns, and correspondingly, three connecting plates 203 are arranged.
The distance between each two tightening guns 201 is adjusted through a variable-pitch cylinder 204, the cylinder body of the variable-pitch cylinder 204 is fixed to the bottom of one adjusting plate, the tail end of a cylinder rod of the variable-pitch cylinder is connected with the other adjusting plate, a first sliding block 205 is arranged on the upper portion of the adjusting plate, a first sliding rail 206 is arranged on the upper portion of the two adjusting plates and corresponds to the bottom of a connecting plate, and the first sliding block 205 is matched with the first sliding rail 206. The adjusting plates can be pushed to move along the first sliding rail 206 through the variable pitch cylinder 204, so that the distance between the two adjusting plates below each connecting plate can be adjusted, and the distance between two tightening guns in each group can be adjusted.
The distance between every two adjacent groups of tightening guns is adjusted through an automatic variable-pitch linear motor 207, three rotors on the automatic variable-pitch linear motor 207 are in transmission connection with three connecting plates respectively, and specifically, each rotor is correspondingly connected with one connecting plate 203 through a transition plate 208. The automatic pitch-changing linear motor 207 is fixed to the valve seat plate 5. The upper portion of the connecting plate 203 is provided with a second slider 209, the valve seat plate 5 is provided with a second slide rail 501, the second slider 209 is matched with the second slide rail 501, and the first slide rail 206 and the second slide rail 501 are vertically arranged. Three connecting plates can be driven to transversely move through the automatic variable-pitch linear motor 207, so that the distance between the three connecting plates can be adjusted, and the adjustment of the distance between each group of tightening guns is realized. Through the variable pitch cylinder and the automatic variable pitch linear motor, the adjustment of the transverse spacing and the longitudinal spacing between adjacent tightening guns can be realized so as to adapt to the bolt tightening requirements of different types of cylinder bodies.
The adjusting mechanism 3 comprises an adjusting cylinder 301 and a top fixing frame 302, a third sliding rail 303 is vertically arranged on the top fixing frame, a side plate 502 is arranged on one side of the valve seat plate 5, a third sliding block 503 is arranged on the outer side surface of the side plate 502, and the third sliding block 503 is matched with the third sliding rail 303. The adjusting cylinder 301 is mounted on the top fixing frame 302, and the end of the rod of the adjusting cylinder 301 is connected with the valve seat plate 5. The valve seat plate 5 can be controlled to move up and down along the third slide rail 303 through the adjusting cylinder 301, and then the adjustment of the vertical position of the tightening gun is realized.
As a further design of the utility model, an in-place detection switch 106 for detecting that the workpiece is in place is further arranged on the bottom fixing frame 101, the in-place detection switch 106 is connected with a control device, and the control device is respectively connected with a jacking cylinder, a tightening gun, a variable pitch cylinder, an automatic variable pitch linear motor and an adjusting cylinder; the control device comprises an electric control system 107 and an air control system 108. Thus, when the workpiece runs in place, the signal can be detected by the in-place detection switch 106, and the jacking cylinder is controlled to perform jacking action, so that the workpiece is positioned and lifted.
Further, the bottom of the adjusting plate is provided with two guide mechanisms 6, one guide mechanism is arranged at the bottom of the three adjusting plates on the same side, and the other guide mechanism is arranged at the bottom of the three adjusting plates on the other side. The guide mechanism 6 includes a guide rod 601, three guide blocks 602 are disposed on the guide rod 601, and each guide block 602 is correspondingly connected to one adjusting plate. Can drive even board 203, and then play the guide effect when driving the motion of adjusting plate to automatic displacement linear electric motor 207 through guiding mechanism 6, further strengthened stability, the precision of interval adjustment between the tightening gun.
Furthermore, the two ends of the valve seat plate 5 are further provided with a limiting block 504 for limiting the movement of the two outer connecting plates. The limiting block 504 can limit the movement of the connecting plate.
The center of the valve seat plate 5 is also provided with a square through hole 505 for six tightening guns to vertically pass through.
An outer frame 7 is arranged outside the jacking mechanism 1, the bolt tightening mechanism 2 and the adjusting mechanism 3.
The working process of the six-axis automatic variable pitch type tightening machine generally includes the steps of:
(1) the distance between the six tightening guns 201 is adjusted according to the type of the cylinder to be tightened on the production line, specifically, by starting the automatic variable-pitch linear motor 207, the rotor of the linear motor drives the connecting plate 203 to move along the second slide rail 501, so as to adjust the transverse distance between the tightening guns of each group. Then, by activating the pitch cylinder 204, the lever of the pitch cylinder pushes the adjusting plate 202 to move along the first slide rail 206 to adjust the longitudinal distance between each set of two tightening guns 201.
(2) The workpiece which is pre-tightened manually is conveyed forwards continuously along the assembly line 4 until the workpiece is tightened, when an in-place detection switch 106 in the jacking mechanism detects a signal, the workpiece is determined to be in place, then the jacking cylinder 103 is started, a cylinder rod of the jacking cylinder 103 pushes the jacking plate 102 to ascend, the positioning pin 104 on the jacking plate is inserted into the workpiece for positioning, and meanwhile, the workpiece is jacked upwards to a preset position by the jacking plate.
(3) And starting the adjusting air cylinder 301, wherein a cylinder rod of the adjusting air cylinder pushes the valve seat plate 5 to move downwards along the third slide rail 303, and when the valve seat plate 5 descends to a preset position, starting a tightening gun to tighten the bolt on the cylinder body.
(4) After the bolts on the cylinder body are tightened, the cylinder rod of the adjusting cylinder 301 drives the valve seat plate 5 to move upwards along the third slide rail, and then the valve seat plate returns to the initial position.
(5) The jacking cylinder 103 in the jacking mechanism 1 drives the jacking plate 102 to descend, so that the workpiece falls down again on the production line 4 and is separated from the jacking plate, and the workpiece is conveyed forwards continuously along with the production line 4 to finish the bolt tightening action.
(6) And (5) repeating the steps (2) - (5) when the next workpiece on the assembly line needs to be screwed with the bolt.
(7) And (3) when the model of the cylinder body processed on the assembly line changes, repeating the step (1), adjusting the distance between the tightening guns to a proper position, and repeating the steps (2) to (5) to finish the bolt tightening action.
In the step (3): the torque angle method can be adopted when the bolt is screwed by the screwing gun.
Parts not described in the above modes can be realized by adopting or referring to the prior art.
It is to be understood that any equivalent or obvious modifications made by those skilled in the art in the light of the teachings of this specification are within the scope of the present invention.
Claims (4)
1. The utility model provides a machine is screwed up to six automatic displacement types of axle which characterized in that: the bolt tightening mechanism comprises six tightening guns, each tightening gun is independently fixed on one adjusting plate, and all the six adjusting plates are located in the same horizontal plane; the six tightening guns are divided into three groups, each group comprises two tightening guns, a connecting plate is arranged above two adjusting plates for correspondingly fixing the two tightening guns of each group, and correspondingly, the connecting plate is provided with three groups;
the distance between each group of two tightening guns is adjusted through a variable-pitch cylinder, a cylinder body of the variable-pitch cylinder is fixed at the bottom of one adjusting plate, the tail end of a cylinder rod of the variable-pitch cylinder is connected with the other adjusting plate, a first sliding block is arranged at the upper part of the adjusting plate, a first sliding rail is arranged above the two adjusting plates and corresponds to the bottom of the connecting plate, and the first sliding block is matched with the first sliding rail;
the distance between every two adjacent groups of tightening guns is adjusted through an automatic variable-pitch linear motor, a rotor on the automatic variable-pitch linear motor is in transmission connection with a connecting plate, each rotor is correspondingly connected with one connecting plate, and the automatic variable-pitch linear motor is fixed on a valve seat plate; the upper part of the connecting plate is provided with a second sliding block, the valve seat plate is provided with a second sliding rail, the second sliding block is matched with the second sliding rail, and the first sliding rail and the second sliding rail are vertically arranged.
2. The six-axis automatic variable-pitch tightening machine according to claim 1, characterized in that: the adjusting mechanism comprises an adjusting cylinder and a top fixing frame, a third sliding rail is vertically arranged on the top fixing frame, a side plate is arranged on one side of the valve seat plate, a third sliding block is arranged on the outer side surface of the side plate, and the third sliding block is matched with the third sliding rail; the adjusting cylinder is installed on the top fixing frame, and the tail end of a cylinder rod of the adjusting cylinder is connected with the valve seat plate.
3. The six-axis automatic variable-pitch tightening machine according to claim 1, characterized in that: the jacking mechanism comprises a bottom fixing frame, the bottom fixing frame is arranged below the assembly line, a jacking plate is arranged at the center of the bottom fixing frame, the bottom of the jacking plate is connected with a cylinder rod of a jacking cylinder, positioning pins are arranged above two ends of the jacking plate, and supporting columns are arranged at four corners of the jacking plate.
4. The six-axis automatic variable-pitch tightening machine according to claim 1, characterized in that: the bottom of the adjusting plate is provided with two guide mechanisms, one of the guide mechanisms is arranged at the bottom of the three adjusting plates on the same side, and the other guide mechanism is arranged at the bottom of the three adjusting plates on the other side; the guide mechanism comprises a guide rod, three guide blocks are arranged on the guide rod, and each guide block is correspondingly connected with one adjusting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873455.1U CN213164030U (en) | 2020-08-31 | 2020-08-31 | Six-shaft automatic variable-pitch tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873455.1U CN213164030U (en) | 2020-08-31 | 2020-08-31 | Six-shaft automatic variable-pitch tightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213164030U true CN213164030U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021873455.1U Active CN213164030U (en) | 2020-08-31 | 2020-08-31 | Six-shaft automatic variable-pitch tightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213164030U (en) |
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2020
- 2020-08-31 CN CN202021873455.1U patent/CN213164030U/en active Active
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