CN220575600U - Assembling clamp for controlling length of plastic rod - Google Patents
Assembling clamp for controlling length of plastic rod Download PDFInfo
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- CN220575600U CN220575600U CN202322212328.7U CN202322212328U CN220575600U CN 220575600 U CN220575600 U CN 220575600U CN 202322212328 U CN202322212328 U CN 202322212328U CN 220575600 U CN220575600 U CN 220575600U
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- length
- fixing block
- plastic rod
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- plastic
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- 238000003825 pressing Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model provides an assembly fixture for controlling the length of a plastic rod, which comprises: the control bottom plate, the length fixed block arranged on the control bottom plate, the pressing plate arranged outside the length fixed block; the length fixing block is cube-shaped, a plurality of vertical grooves for placing plastic rods to be ground are formed in the four side faces of the length fixing block at intervals, and the heights of the length fixing block and the vertical grooves are consistent with the control length required by the plastic rods; the pressing plate is provided with four blocks which are respectively arranged on four side surfaces of the length fixing block and used for pressing the plastic rod in the vertical groove, and the upper surface of the pressing plate is lower than the top surface of the length fixing block; a detachable backing plate is clamped between the control bottom plate and the length fixing block, the size of the backing plate is smaller than that of the length fixing block, and the thickness of the backing plate is smaller than the difference between the length of the plastic rod and the height of the length fixing block before the plastic rod is processed. By adopting the assembly fixture, the length of the plastic rod can be precisely controlled when the end face of the plastic rod is polished, and the production cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of mechanical tools, and particularly relates to an assembly fixture for controlling the length of a plastic rod.
Background
In machining processes, it is often necessary to machine thin and long bars, the aspect ratio of which is generally greater than 20 or more, and such workpieces often undergo a combination of multiple processes in order to ensure straightness and cylindricity, where it is difficult to ensure that there are small tolerances in the length dimensions between bars. Especially when the bar is a soft plastic bar, due to the existence of high error in the center of a lathe cutter, particles with different sizes exist on the end face of the plastic bar when the bar is cut off, so that the end face is irregular, and sand is required to be used for polishing the end face of the plastic bar, therefore, for the thin and long plastic bar, the length tolerance is controlled to be 1 to 2 wires, and the leveling of the transverse end face is very difficult.
Although the length tolerance of the plastic rod can be controlled through the high-precision double-spindle numerical control machine in the prior art, the production cost is greatly improved because the high-precision double-spindle numerical control machine is higher in selling price. And because the machining is performed by using a high-precision machine tool, the working procedure of the centerless outer circle grinding machining is performed after the machining by the machine tool, and the working procedure can influence the length of the plastic rod. Therefore, it is very necessary to design an assembly jig for controlling the length of the plastic rod.
Disclosure of Invention
In view of the above problems, the present utility model provides an assembly jig for controlling the length of a plastic rod in order to control the length tolerance of the plastic rod after processing and to achieve cost reduction and efficiency improvement.
The technical scheme of the utility model is as follows: an assembly fixture for controlling the length of a plastic rod, comprising: the control bottom plate, the length fixed block arranged on the control bottom plate, the pressing plate arranged on the outer side of the length fixed block; wherein,
the length fixing block is cube-shaped, a plurality of vertical grooves for placing plastic rods to be ground are formed in the four side faces of the length fixing block at intervals, and the heights of the length fixing block and the vertical grooves are consistent with the required control length of the plastic rods;
the pressing plate is provided with four blocks which are respectively arranged on four side surfaces of the length fixing block and used for pressing the plastic rod into the vertical groove, and the upper surface of the pressing plate is lower than the top surface of the length fixing block;
the detachable backing plate is clamped between the control bottom plate and the length fixing block, the backing plate is arranged below the length fixing block on the inner side of the vertical groove, and the thickness of the backing plate is smaller than the difference between the length of the plastic rod before being processed and the height of the length fixing block.
This kind of setting, the size of pad is less than the length fixed block, with the pad clamp establish between control bottom plate and length fixed block, so that will not carry out the plastic rod of handling when being fixed in the vertical groove, the bottom of plastic rod with control bottom plate offsets, and the top stretches out to the outside in vertical groove.
The utility model is further arranged such that the pressure plate is placed on the control floor.
The utility model further provides that an elastic piece is also clamped between the inner side surface of the pressing plate and the plastic rod to be ground.
The utility model further provides that the elastic piece is a wave spring piece, and the length of the wave spring piece is lower than the height of the length fixing block. When the pressing plate is used, the wavy spring piece is clamped between the inner side face of the pressing plate and the plastic rods, and the arrangement can avoid the phenomenon that the pressing plate cannot press all plastic rods on the same side due to errors of the diameter and the size of the plastic rods.
The utility model is further arranged that both sides of the vertical groove are tangential to the sides of the plastic rod.
The utility model is further characterized in that at least one pair of horizontal fixing holes are formed in four side faces of the length fixing block, a pressing plate through hole is formed in the pressing plate corresponding to the horizontal fixing holes, and bolts penetrate through the pressing plate through hole to the horizontal fixing holes to fix the pressing plate on the length fixing block.
The utility model is further characterized in that the control bottom plate below the outer side of the base plate is provided with at least one pair of central symmetrical fixing through holes, the corresponding position of the bottom surface of the length fixing block above the outer side of the base plate is provided with a vertical fixing hole, and the length fixing block is fixed on the control bottom plate by screwing a fixing bolt into the vertical fixing hole through the fixing through holes.
The utility model is further characterized in that a pair of centrally symmetrical positioning columns are also arranged on the control bottom plate below the outer side of the base plate, positioning holes matched with the positioning columns are correspondingly arranged on the length fixing blocks, and the positioning columns are inserted into the positioning holes so as to facilitate positioning and mounting of the length fixing blocks.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The assembly fixture for controlling the length of the plastic rod can realize batch polishing of the plastic rod and accurate control of the length of the plastic rod when polishing the end face of the plastic rod;
(2) The assembly fixture for controlling the length of the plastic rod can improve the production efficiency and greatly reduce the production cost due to the need of ensuring the low tolerance of the length of the plastic rod.
Drawings
Fig. 1 is a schematic perspective view of an assembly jig according to the present utility model.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a schematic structural view of the length fixing block according to the embodiment.
Fig. 5 is a left side view of fig. 1, wherein the left side platen and backing plate are not mounted.
Fig. 6 is a schematic structural view of a wave spring piece according to an embodiment.
FIG. 7 is a top view block diagram of a control floor and a backing plate in an embodiment.
Fig. 8 is a schematic perspective view of a control chassis according to an embodiment.
The device comprises a control bottom plate 1, a length fixing block 2, a pressing plate 3, a vertical groove 4, a vertical groove 5, a base plate 6, a plastic rod 7, a wave-shaped spring piece 8, a horizontal fixing hole 9, a fixing through hole 10 and a positioning column.
Detailed Description
In the description of the present utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 to 4, the present utility model provides an assembly jig for controlling a length of a plastic rod, comprising: a control bottom plate 1, a length fixing block 2 arranged above the control bottom plate 1, and a pressing plate 3 arranged on the control bottom plate 1 and arranged outside the length fixing block 2; wherein,
the length fixing block 2 is cube-shaped, a plurality of vertical grooves 4 for placing plastic rods 6 to be ground are arranged on four side surfaces of the length fixing block at intervals, and the heights of the length fixing block 2 and the vertical grooves 4 are consistent with the length required to be controlled by the plastic rods 6;
the pressing plate 3 is provided with four pressing plates which are respectively arranged on four side surfaces of the length fixing block 2 and used for pressing the plastic rod 6 in the vertical groove 4, and the upper surface of the pressing plate 3 is lower than the top surface of the length fixing block 2;
the detachable backing plate 5 is clamped between the control bottom plate 1 and the length fixing block 2, the size of the backing plate 5 is smaller than that of the length fixing block 2, the backing plate 5 is arranged below the length fixing block 2 inside the vertical groove 4, and the thickness of the backing plate 5 is smaller than the difference between the length of the plastic rod 6 and the height of the length fixing block 2 before polishing. This kind of setting, be used for making when the plastic rod 6 that does not carry out the processing is fixed in the vertical groove 4, the bottom of plastic rod 6 with when control bottom plate offsets 1, its top stretches out to the outside of vertical groove 4 to can realize polishing the both ends of plastic rod 6, avoid appearing that one end finishes the back of polishing, the length of plastic rod has been unanimous with the length of required control.
Preferably, in this embodiment, the length fixing block 2 and the backing plate 5 are both centrally disposed above the control floor 1.
Preferably, the dimensions of the vertical slot 4 and the plastic rod 6 match, and both sides of the vertical slot 4 are tangential to the sides of the plastic rod 6.
As shown in fig. 5-6, in order to avoid that the pressing plate 3 cannot press all plastic rods 6 to be ground on the same side due to errors between diameters of the plastic rods 6, in use, an elastic piece 7 is further arranged between the inner side surface of the pressing plate 3 and the plastic rods 6 to be ground. In this embodiment, the elastic member is preferably a wave spring piece 7, and the length of the wave spring piece 7 is lower than the height of the length fixing block 2.
Further, at least one pair of horizontal fixing holes 8 are formed on four sides of the length fixing block 2, a pressing plate through hole (not shown in the figure) is formed on the pressing plate 3 corresponding to the horizontal fixing holes 8, and bolts are used to penetrate through the pressing plate through hole to the horizontal fixing holes 8, so that the pressing plate 3 is mounted on the length fixing block 2.
Referring to fig. 7-8, the control bottom plate 1 below the outer side of the backing plate 5 is provided with at least one pair of central symmetrical fixing through holes 9, the bottom surface of the length fixing block 2 above the outer side of the backing plate 5 is provided with vertical fixing holes (not shown in the figure) corresponding to the fixing through holes 9, and fixing bolts are used to penetrate through the fixing through holes 9 and screwed into the vertical fixing holes, so that the length fixing block 2 is fixed above the control bottom plate 1.
Further, a pair of centrally symmetrical positioning columns 10 are further arranged on the control bottom plate 1, positioning holes matched with the positioning columns 10 are correspondingly formed in the length fixing blocks 2, the height of each positioning column 10 is larger than the thickness of the base plate 5, and the top ends of the positioning columns 10 are inserted into the positioning holes so as to facilitate positioning and installation of the length fixing blocks 2.
After the plastic rod 6 is processed by the previous working procedure, the two ends of the plastic rod 6 are provided with allowance, and small particles remained when the plastic rod is cut off are all present, the two ends of the plastic rod 6 are required to be polished respectively, the length of the polished plastic rod 6 is controlled to be consistent by using the assembly fixture for controlling the length of the plastic rod, and the process is as follows:
firstly, a backing plate 5 and a length fixing block 2 are fixed on a control bottom plate 1, plastic rods 6 to be ground are placed in a vertical groove 4 in batches, the bottom end faces of the plastic rods are propped against the control bottom plate 1, four pressing plates 3 are arranged on four side faces of the length fixing block 2, a wavy spring piece 7 is inserted between the inner side face of the pressing plate 3 and the plastic rods 6, and at the moment, the top ends of the plastic rods 6 to be ground extend out of the vertical groove 4; then moving the assembly fixture, and polishing the surface to be polished of the plastic rod 6 on the sand skin until one end surface of the plastic rod 6 is polished to be leveled with the top surface of the length fixing block 2;
then unscrewing or unscrewing each fixing bolt, pushing out the backing plate 5, placing the bottom surface of the length fixing block 2 on the top surface of the control bottom plate 1, placing the ground end surface of the plastic rod 6 in the vertical groove 4 downwards, at the moment, propping a ground end surface against the control bottom plate 1, stretching an unground end to the outer side of the vertical groove 4, then screwing each fixing bolt, polishing an unground end of the plastic rod 6 on a sand skin, and similarly, polishing until the end surface is leveled with the top surface of the length fixing block 2, thus realizing batch preparation of plastic rods with precisely controlled lengths. By the fixture, the two end faces of the plastic rod 6 can be polished rapidly and in large quantity, and the length tolerance of each polished plastic rod 6 is +/-1 wire.
When the plastic rod is polished on the sand skin, the clamp can be held by hand to polish, or the assembly clamp can be arranged on the power device to control the plastic rod to automatically polish on the sand skin.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (7)
1. An assembly fixture for controlling the length of a plastic rod, comprising: the control bottom plate, the length fixed block arranged on the control bottom plate, the pressing plate arranged on the outer side of the length fixed block; wherein,
the length fixing block is cube-shaped, a plurality of vertical grooves for placing plastic rods to be ground are formed in the four side faces of the length fixing block at intervals, and the heights of the length fixing block and the vertical grooves are consistent with the required control length of the plastic rods;
the pressing plate is provided with four blocks which are respectively arranged on four side surfaces of the length fixing block and used for pressing the plastic rod into the vertical groove, and the upper surface of the pressing plate is lower than the top surface of the length fixing block;
the detachable backing plate is clamped between the control bottom plate and the length fixing block, the backing plate is arranged below the length fixing block on the inner side of the vertical groove, and the thickness of the backing plate is smaller than the difference between the length of the plastic rod before being processed and the height of the length fixing block.
2. The assembly jig for controlling a length of a plastic rod according to claim 1, wherein an elastic member is further interposed between an inner side surface of the pressing plate and the plastic rod to be ground.
3. The assembly jig for controlling the length of a plastic rod according to claim 2, wherein the elastic member is a wave spring piece, and the length of the wave spring piece is lower than the height of the length fixing block.
4. An assembly jig for controlling the length of a plastic rod according to claim 1, wherein both sides of said vertical groove are tangent to the sides of said plastic rod.
5. The assembly jig for controlling the length of a plastic rod according to claim 1, wherein at least one pair of horizontal fixing holes are formed in four sides of the length fixing block, a pressing plate through hole is formed in the pressing plate corresponding to the horizontal fixing holes, and bolts are used to penetrate through the pressing plate through hole to the horizontal fixing holes to fix the pressing plate on the length fixing block.
6. The assembly jig for controlling the length of a plastic rod according to claim 1, wherein the control bottom plate below the outside of the base plate is provided with at least one pair of centrally symmetrical fixing holes, the corresponding position of the bottom surface of the length fixing block above the outside of the base plate is provided with fixing holes, and the length fixing block is fixed on the control bottom plate by screwing the fixing bolts into the fixing holes through the fixing holes.
7. The assembly fixture for controlling the length of a plastic rod according to claim 6, wherein a pair of centrally symmetrical positioning columns are further formed on the control bottom plate below the outer side of the base plate, positioning holes matched with the positioning columns are correspondingly formed in the length fixing blocks, and the positioning columns are inserted into the positioning holes so as to facilitate positioning and installation of the length fixing blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322212328.7U CN220575600U (en) | 2023-08-16 | 2023-08-16 | Assembling clamp for controlling length of plastic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322212328.7U CN220575600U (en) | 2023-08-16 | 2023-08-16 | Assembling clamp for controlling length of plastic rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220575600U true CN220575600U (en) | 2024-03-12 |
Family
ID=90116012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322212328.7U Active CN220575600U (en) | 2023-08-16 | 2023-08-16 | Assembling clamp for controlling length of plastic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220575600U (en) |
-
2023
- 2023-08-16 CN CN202322212328.7U patent/CN220575600U/en active Active
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