Simple positioning clamp

Abstract

The utility model relates to a simple positioning fixture, including base, a plurality of dowels and a plurality of positioning plates, the positioning plates and the base are vertically arranged, a positioning groove is formed between every two adjacent positioning plates, the positioning grooves are used for placing workpieces to be processed, one side of each positioning plate far away from the base is provided with a plurality of threaded holes, and the threaded holes are used for positioning the workpieces to be processed. The pin is arranged in the threaded hole and moves in the axial direction of the threaded hole, the pin is provided with a plurality of matching parts which are sequentially distributed in the axial direction of the pin, and the outer diameters of the matching parts are gradually reduced in the height direction of the matching parts. The clamp solves the problem that an existing clamp can only clamp one workpiece to be machined at a time, production efficiency is improved, meanwhile, the clamp can adapt to workpieces to be machined of different specifications, and production cost can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of positioning tools, in particular to a simple positioning fixture. Background Art

[0002] A fixture is a tool used to fix the workpiece to be processed during the mechanical manufacturing process, ensuring the accurate position of the workpiece and placing it stably for construction or inspection. The existing fixture structure is relatively complex. Due to structural limitations, it can usually only clamp a single workpiece to be processed. During use, it not only wastes time, but also has a relatively low clamping rate for the workpiece to be processed, which greatly affects the production process. And because the installation holes of different workpieces to be processed have different specifications, a fixture can only clamp one specification of workpiece to be processed, which greatly increases the production cost. Utility Model Content

[0003] The utility model aims to provide a simple positioning fixture, which solves the problem that the existing fixture can only clamp one workpiece to be processed at a time, thereby improving production efficiency. At the same time, the fixture can adapt to workpieces to be processed of different specifications, which can greatly reduce production costs.

[0004] A simple positioning fixture includes a base, a plurality of pins, and a plurality of positioning plates. The positioning plates are vertically arranged with respect to the base. A positioning groove is formed between two adjacent positioning plates. The positioning groove is used to place a workpiece to be processed. A plurality of threaded holes are provided on a side of the positioning plate away from the base. The pins are arranged in the threaded holes and move along the axial direction of the threaded holes. The pins have a plurality of mating parts sequentially distributed in the axial direction thereof, and the outer diameter of the mating parts gradually decreases along the height direction thereof.

[0005] In the above technical scheme, a plurality of positioning plates which are perpendicular to the base are arranged on the base, and positioning grooves are formed between the two positioning plates, and each positioning groove corresponds to a workpiece to be processed. When in use, the workpiece to be processed is placed in the positioning groove, and the workpiece to be processed is connected to the positioning plate. Due to the arrangement of multiple positioning plates, the utility model can clamp multiple workpieces to be processed at one time, which significantly improves the production efficiency of the workpieces to be processed; at the same time, the positioning plate is also provided with a threaded hole, and the driving component moves in the threaded hole by driving the pin and connects it with the mounting hole of the workpiece to be processed. Since the pin of the utility model has a plurality of mating parts sequentially distributed in its axial direction, and the outer diameter of each mating part is not the same, when in use, by mating and connecting the mating parts with different outer diameters with the workpiece to be processed with mounting holes of different specifications, the utility model can be applied to workpieces to be processed of different specifications, which greatly reduces the production cost.

[0006] Furthermore, there are four positioning plates, two of which are respectively arranged at two ends of the base, and the remaining two positioning plates are adjacently arranged and arranged in the middle of the base.

[0007] In the above technical solution, four positioning plates are provided, two of which are respectively arranged at the two ends of the base, and the other two are adjacently arranged in the middle of the base. The positioning plates at the ends of the base form positioning grooves with the positioning plates in the middle of the base, so that the clamp can clamp two workpieces to be processed at a time, thereby improving production efficiency.

[0008] Furthermore, the matching part includes a first matching part, a second matching part and a third matching part, the first matching part, the second matching part and the third matching part are connected in sequence, the outer diameter of the first matching part is smaller than the outer diameter of the second matching part, and the outer diameter of the second matching part is smaller than the outer diameter of the third matching part.

[0009] In the above technical solution, the outer diameters of the first matching part, the second matching part and the third matching part gradually increase, so that the pin of the utility model can be matched with the mounting hole of the workpiece to be processed by adjusting the matching part, without the need to replace the pin, thereby improving the applicability of the fixture.

[0010] Furthermore, the pin also includes a connecting portion, the connecting portion is connected to the third matching portion, and the outer diameter of the connecting portion is greater than the outer diameter of the third matching portion.

[0011] In the above technical solution, by providing a connecting portion and setting the outer diameter of the connecting portion to be larger than the outer diameter of the third matching portion, the positioning accuracy of the pin can be improved.

[0012] Furthermore, a limiting member for limiting the axial displacement of the pin is provided on the inner peripheral wall of the threaded hole, and when the pin moves vertically upward, the limiting member abuts against the connecting portion.

[0013] In the above technical solution, the limiter can limit the pin, restrict the pin in the threaded hole, prevent the pin from escaping from the threaded hole, avoid the pin from being lost, reduce production costs, and at the same time reduce the number of pin installations and reduce the workload of staff.

[0014] Furthermore, the base is provided with a plurality of assembly holes, and the assembly holes are formed as stepped holes.

[0015] In the above technical solution, the assembly hole is used to connect the base with other components, and the setting of the stepped hole makes the connection between the base and other components more stable, ensuring that the clamp can work stably.

[0016] Furthermore, the diameter of the assembly hole gradually decreases along the thickness direction of the base.

[0017] In the above technical solution, the diameter of the assembly hole gradually decreases along the thickness direction of the base. During specific implementation, fasteners such as screws can be used to pass through the assembly hole so that the head of the screw extends into the assembly hole, thereby making the surface of the head of the screw flush with the surface of the base, thereby improving the aesthetics of the utility model.

[0018] Furthermore, a plurality of positioning holes are provided on one side of the positioning plate facing the positioning groove.

[0019] In the above technical solution, the positioning holes are used to install the workpiece to be processed and the positioning plate together. The workpiece to be processed is provided with corresponding mounting holes. When the workpiece to be processed is placed in the positioning groove, fasteners such as screws are used to pass through the positioning holes and the mounting holes, so that the workpiece to be processed and the positioning plate are stably connected to ensure the stability of the workpiece to be processed.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] A plurality of positioning plates are arranged on the base to form a positioning groove between two adjacent positioning plates. When in use, the workpiece to be processed is placed in the positioning groove and connected to the positioning plate to ensure the stability of the workpiece to be processed. By setting up multiple positioning plates, the problem that the existing clamp can only clamp one workpiece to be processed at a time is solved, thereby improving production efficiency.

[0022] A threaded hole is provided on the positioning plate, and a pin is provided in the threaded hole so that the pin can move along the axial direction of the threaded hole. The workpiece to be processed is connected to the positioning plate through the pin, thereby ensuring the stability of the workpiece to be processed. At the same time, the pin has a plurality of matching parts with different outer diameters, and the matching parts are matched and connected with the mounting holes of the workpiece to be processed. The outer diameter of the matching parts gradually decreases along the height direction thereof. By providing matching parts with different outer diameters, the utility model can be applied to workpieces to be processed with mounting holes of different specifications, thereby greatly reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a simple positioning fixture according to an embodiment of the utility model.

[0024] Figure 2 This is a schematic structural diagram of the simple positioning fixture according to another embodiment of the utility model from another angle.

[0025] Figure 3 This is a schematic diagram of the structure of a pin according to an embodiment of the utility model.

[0026] Figure 4 It is a partial schematic diagram of the threaded hole of an embodiment of the utility model.

[0027] Description of Figure Numbers

[0028] Base 1, assembly hole 101, pin 2, matching portion 201, first matching portion 2011, second matching portion 2012, third matching portion 2013, connecting portion 202, positioning plate 3, threaded hole 301, positioning hole 302, positioning groove 4, and limiting member 5. DETAILED DESCRIPTION

[0029] The following will further describe the simple positioning fixture of the utility model in detail with reference to specific embodiments and drawings. The drawings show preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0030] Please refer to Figures 1 to 3 In a preferred embodiment, the simple positioning fixture of the utility model includes a base 1, a plurality of pins 2, and a plurality of positioning plates 3. The positioning plates 3 are vertically arranged with respect to the base 1. Positioning grooves 4 are formed between two adjacent positioning plates 3. The positioning grooves 4 are used to place the workpiece to be processed. A plurality of threaded holes 301 are provided on the side of the positioning plates 3 away from the base 1. The driving assembly 2 is connected with the pins 2 to drive the pins 2 to move in the threaded holes 301. The pin 2 has a plurality of mating portions 201 sequentially distributed in its axial direction, and the outer diameter of the mating portion 201 gradually decreases along its height direction.

[0031] It can be seen from the above technical scheme that the utility model provides a plurality of positioning plates 3 on the base 1 that are perpendicular to the base 1, and forms a positioning groove 4 between the two positioning plates 3, and each positioning groove 4 corresponds to a workpiece to be processed. When in use, the workpiece to be processed is placed in the positioning groove 4, and the workpiece to be processed is connected to the positioning plate 3. Due to the provision of multiple positioning plates 3, the utility model can clamp multiple workpieces to be processed at one time, which significantly improves the production efficiency of the workpieces to be processed; at the same time, the positioning plate 3 is also provided with a threaded hole 301, and the driving component 2 moves in the threaded hole 301 by driving the pin 2, and connects it with the mounting hole of the workpiece to be processed. Since the pin 2 of the utility model has a plurality of matching parts 201 distributed sequentially in its axial direction, and the outer diameter of each matching part 201 is not the same, when in use, by matching and connecting the matching parts 201 with different outer diameters with the workpiece to be processed with mounting holes of different specifications, the utility model can be applied to workpieces to be processed of different specifications, which greatly reduces the production cost.

[0032] Please refer to Figure 1, exemplarily, the utility model has four positioning plates 3, two of which are respectively arranged at the two ends of the base 1, and the other two positioning plates 3 are arranged adjacent to each other and arranged in the middle of the base 1. The positioning plates 3 at the ends of the base 1 form positioning grooves 4 with the positioning plates 3 in the middle of the base 1, respectively, to form a double-station clamp, so that the clamp can clamp two workpieces to be processed at a time, thereby improving production efficiency. The overall structure is simple, making the assembly process easier. In specific implementation, it is only necessary to place the workpiece to be processed into the positioning groove 4 and connect the workpiece to be processed with the positioning plate 3 to ensure the stability of the workpiece to be processed and improve the working efficiency of the clamp.

[0033] Please refer to Figure 3 The matching part 201 includes a first matching part 2011, a second matching part 2012 and a third matching part 2013. The first matching part 2011, the second matching part 2012 and the third matching part 2013 are connected in sequence. The outer diameter of the first matching part 2011 is smaller than the outer diameter of the second matching part 2012, and the outer diameter of the second matching part 2012 is smaller than the outer diameter of the third matching part. The outer diameters of the first matching part 2011, the second matching part 2012 and the third matching part 2013 are gradually increased, so that the pin 2 of the utility model can be matched with the mounting hole of the workpiece to be processed by adjusting the matching part 201, without having to replace the pin 2 again, thereby improving the applicability of the clamp.

[0034] For example, in one possible embodiment, the outer diameters of the first matching portion 2011, the second matching portion 2012 and the third matching portion 2013 are 1 mm, 2 mm and 3 mm respectively. When the diameter of the mounting hole of the workpiece to be processed is 1.5 mm, the driving component 2 drives the pin 2 to move toward the top of the positioning plate 3, the first matching portion 2011 can be connected to the workpiece to be processed and extend into the mounting hole, and the second matching portion 2012 and the third matching portion 2013 are located in the threaded hole 301. In another possible embodiment, the outer diameters of the first matching portion 2011, the second matching portion 2012 and the third matching portion 2013 are 1 mm, 2 mm and 3 mm respectively. When the diameter of the mounting hole of the workpiece to be processed is 2.5 mm, the driving component 2 drives the pin 2 to move toward the top of the positioning plate 3, the second matching portion 2012 is connected to the workpiece to be processed and extends into the mounting hole, and the third matching portion 2013 is located in the threaded hole 301.

[0035] Please refer to Figure 3 The pin 2 further includes a connecting portion 202, which is connected to the third matching portion 2013, and the outer diameter of the connecting portion 202 is larger than the outer diameter of the third matching portion 2013. By providing the connecting portion 202 and setting the outer diameter of the connecting portion 202 larger than the outer diameter of the third matching portion 2013, the positioning accuracy of the pin 2 can be improved.

[0036] Please refer to Figure 4The inner peripheral wall of the threaded hole 301 is provided with a stopper 5 for limiting the axial displacement of the pin 2. When the pin 2 moves vertically upward, the stopper 5 abuts against the connecting portion 202. The stopper 5 can limit the position of the pin 2, limit the pin 2 in the threaded hole 301, prevent the pin 2 from being separated from the threaded hole 301, avoid the pin 2 from being lost, reduce the production cost, and reduce the number of installations of the pin 2, reducing the workload of the staff. Exemplarily, the stopper 5 can be formed in a ring shape, and the stopper 5 abuts against the third matching portion 2013, thereby making the design of the stopper 5 simpler and convenient for assembly.

[0037] Please refer to Figure 1 The driving assembly 2 includes a driver 201 and a driving shaft 202. The output end of the driver 201 is connected to the driving shaft 202 to drive the driving shaft 202 to move. The other end of the driving shaft 202 extends into the threaded hole 301 and abuts against the connecting portion 202. One end of the driving shaft 202 abuts against the connecting portion 202, and the other end is connected to the driver 201. The driver 201 drives the driving shaft 202 to move so that the pin 2 moves up and down in the threaded hole 301. By providing the connecting portion 202 and connecting the connecting portion 202 with the driving assembly 2, the driving assembly 2 and the connecting portion 202 are directly matched. Under the action of the driving assembly 2, the connecting portion 202 drives the pin 2 to move up and down in the threaded hole 301, thereby reducing the wear of the matching portion 201 on the pin 2, thereby improving the matching accuracy of the pin 2 and extending the service life of the pin 2.

[0038] Furthermore, the base 1 is provided with a plurality of assembly holes 101, which are formed as stepped holes. The assembly holes 101 are used to connect the base 1 with other components. The setting of the stepped holes makes the connection between the base 1 and other components more stable, ensuring that the clamp can work stably.

[0039] It should be noted that the diameter of the assembly hole 101 gradually decreases along the thickness direction of the base 1. In specific implementation, a fastener such as a screw can be used to pass through the assembly hole 101, so that the head of the screw extends into the assembly hole 101, so that the head surface of the screw is flush with the surface of the base 1, which can not only ensure the stable connection between the base 1 and other components, but also improve the aesthetics of the utility model.

[0040] In addition, a plurality of positioning holes 302 are provided on one side of the positioning plate 3 facing the positioning groove 4. The positioning holes 302 are used to mount the workpiece to be processed and the positioning plate 3 together. In a specific implementation, the workpiece to be processed is provided with corresponding mounting holes. When the workpiece to be processed is placed in the positioning groove 4, fasteners such as screws can be used to pass through the positioning holes 302 and the mounting holes, so that the workpiece to be processed is stably connected to the positioning plate 3, ensuring the stability of the workpiece to be processed. Exemplarily, each positioning plate 3 of the utility model is provided with two positioning holes 302, further ensuring that the workpiece to be processed is stably connected to the positioning plate 3.

[0041] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A simple positioning fixture, characterized in that: It includes a base, a plurality of pins, and a plurality of positioning plates, wherein the positioning plates are vertically arranged with respect to the base, and a positioning groove is formed between two adjacent positioning plates, and the positioning groove is used to place the workpiece to be processed. A plurality of threaded holes are arranged on the side of the positioning plate away from the base, and the pins are arranged in the threaded holes and move along the axial direction of the threaded holes. The pins have a plurality of matching parts sequentially distributed in the axial direction thereof, and the outer diameter of the matching parts gradually decreases along the height direction thereof.

2. The simple positioning fixture according to claim 1, characterized in that: There are four positioning plates, two of which are respectively arranged at two ends of the base, and the remaining two positioning plates are adjacently arranged and arranged in the middle of the base.

3. The simple positioning fixture according to claim 1, characterized in that: The matching part includes a first matching part, a second matching part and a third matching part, the first matching part, the second matching part and the third matching part are connected in sequence, the outer diameter of the first matching part is smaller than the outer diameter of the second matching part, and the outer diameter of the second matching part is smaller than the outer diameter of the third matching part.

4. The simple positioning fixture according to claim 3, characterized in that: The pin further includes a connecting portion, which is connected to the third matching portion, and an outer diameter of the connecting portion is greater than an outer diameter of the third matching portion.

5. The simple positioning fixture according to claim 4, characterized in that: A limiting member for limiting the axial displacement of the pin is provided on the inner peripheral wall of the threaded hole. When the pin moves vertically upward, the limiting member abuts against the connecting portion.

6. The simple positioning fixture according to claim 1, characterized in that: The base is provided with a plurality of assembly holes, and the assembly holes are formed as stepped holes.

7. The simple positioning fixture according to claim 6, characterized in that: The diameter of the assembly hole gradually decreases along the thickness direction of the base.

8. The simple positioning fixture according to claim 1, characterized in that: A plurality of positioning holes are provided on one side of the positioning plate facing the positioning groove.

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