Product positioning jig

Abstract

The utility model discloses a product positioning jig which comprises a base, a base arranged at the top of the base, a fixing base arranged at the top of the base, a first limiting groove formed in the top of the fixing base and used for containing a second workpiece, and a second limiting groove formed in the top of the fixing base and used for containing a first workpiece. The end, provided with a second through hole, of the second workpiece is embedded into the first workpiece, a first through hole correspondingly communicated with the second through hole is formed in the first workpiece, a containing groove is formed in the side, close to the first limiting groove, of the second limiting groove and formed in the bottom wall of the second limiting groove, and a first positioning pin is elastically connected into the containing groove. A second positioning pin is fixedly installed on the bottom wall of the other side of the second limiting groove, and an elastic piece is arranged between the first positioning pin and the containing groove. According to the product positioning jig, the position precision of a workpiece is greatly improved, the situation of position deviation of the workpiece is reduced, the probability of failure of pressing in a pin shaft is reduced, and therefore the overall machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device processing, in particular to a product positioning fixture. Background Art

[0002] In traditional surgical operations, surgeons use medical instruments to perform operations such as cutting and suturing on the patient's body to complete the operation, remove diseased tissue, transplant organs, etc. However, surgical operations performed with the help of surgical robots can greatly reduce the size of the wound, improve surgical accuracy, and shorten the operation time, thereby reducing patient pain and reducing surgical risks. At the same time, the widespread use of surgical robots has also put forward higher requirements for the accuracy of corresponding medical instruments.

[0003] After searching, the patent publication number CN218535742U discloses "a pre-positioning guide pressing device", including: a product carrier, the front side of which is formed with at least one product installation position suitable for installing and positioning the product; a positioning guide cover plate, located on the front side of the product carrier, the back side of which is formed with at least one sub-component pre-installation position suitable for installing and positioning the sub-component to be installed, and the sub-component pre-installation position corresponds to the product installation position; a pressing upper mold, located on the front side of the positioning guide cover plate, the back side of which is formed with at least one pressing component, and the pressing component corresponds to the sub-component pre-installation position, and the pressing upper mold is suitable for receiving external force and applying pressure to the sub-component to be installed through the pressing component, so as to position and assemble the sub-component to be installed on the product. The device can be widely used for products with small structural dimensions, small assembly sub-components, high installation alignment accuracy, requiring glue bonding or interference assembly relationship, and products with limited manual installation and placement space and difficult operation.

[0004] Although the above-mentioned device can pre-install the workpiece and improve the positioning accuracy of the workpiece, when the pin needs to be embedded between the two workpieces, higher requirements are placed on the positioning accuracy of the workpiece. A slight deviation in the position of the workpiece will cause misalignment between the through holes of the two, resulting in difficulty in accurately pressing the pin in during the pressing process. The position of the workpiece needs to be adjusted again, resulting in poor processing efficiency. Summary of the invention

[0005] The utility model aims to provide a product positioning jig, which greatly improves the positioning accuracy of the workpiece, reduces the situation of workpiece position deviation, reduces the probability of pin shaft pressing failure, and thus improves the overall processing efficiency.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a product positioning fixture, comprising: a base, a base arranged on the top of the base, a fixing seat arranged on the top of the base, a first limiting groove for placing a second workpiece and a second limiting groove for placing a first workpiece are provided on the top of the fixing seat, one end of the second workpiece having a second through hole is embedded in the interior of the first workpiece, and the first workpiece is provided with a first through hole corresponding to the second through hole;

[0007] A receiving groove is provided on the side of the second limiting groove close to the first limiting groove and on the bottom wall of the second limiting groove, a first positioning pin is elastically connected to the interior of the receiving groove, and the first positioning pin can extend into the interior of the first through hole and the second through hole to connect the first workpiece with the second workpiece, and a second positioning pin is fixedly installed on the bottom wall on the other side of the second limiting groove.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, an elastic member is provided between the first positioning pin and the receiving groove.

[0010] 2. In the above solution, the elastic member is always in a compressed state.

[0011] 3. In the above solution, the diameter of the second positioning pin is 1.2 to 3 times the diameter of the first positioning pin.

[0012] 4. In the above solution, the first positioning pin and the second positioning pin are both cylindrical in shape.

[0013] 5. In the above solution, the upper end of the second positioning pin is an arc-shaped end surface.

[0014] 6. In the above solution, there is a height difference between the first limiting groove and the second limiting groove, and the first limiting groove located above the second limiting groove is connected to the side wall of the fixing seat.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The positioning fixture of the utility model product achieves preliminary positioning of the first workpiece and the second workpiece by placing the first workpiece into the second limiting groove and the second workpiece into the first limiting groove. Then, the first workpiece is embedded in the second positioning pin in the second limiting groove, and the first through hole of the first workpiece is aligned with the second through hole of the second workpiece and then jointly sleeved on the first positioning pin, thereby greatly improving the position accuracy of the first workpiece and the second workpiece, reducing the position deviation of the first workpiece, being conducive to maintaining the through connection between the second through hole and the first through hole, reducing the probability of failure of pin pressing, and thus improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a structural diagram of the positioning fixture for the utility model product;

[0018] Attached Figure 2 This is a schematic diagram of the local structure of the positioning fixture of the utility model product Figure 1 ;

[0019] Attached Figure 3 This is a schematic diagram of the local structure of the positioning fixture of the utility model product Figure 2 ;

[0020] Attached Figure 4 This is a partial structural exploded view of the positioning fixture of the utility model product;

[0021] Attached Figure 5 This is a partial structural cross-sectional view of the positioning fixture of the utility model product.

[0022] In the above drawings: 1000, first workpiece; 1001, first through hole; 2000, second workpiece; 2001, second through hole; 100, base; 101, supporting leg; 10, pedestal; 11, fixing seat; 12, first limiting groove; 13, second limiting groove; 14, receiving groove; 15, first positioning pin; 16, second positioning pin; 17, elastic member. Implementation

[0023] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0024] Embodiment 1: A product positioning fixture, comprising: a base 100, a base 10 disposed on the top of the base 100, a fixing seat 11 disposed on the top of the base 10, a first limiting groove 12 for placing a second workpiece 2000, and a second limiting groove 13 for placing a first workpiece 1000 are provided on the top of the fixing seat 11, the second workpiece 2000 has one end with a second through hole 2001 embedded in the interior of the first workpiece 1000, and the first workpiece 1000 has a first through hole 1001 corresponding to and penetrating the second through hole 2001;

[0025] The first workpiece and the second workpiece are placed in the corresponding second limiting groove and the first limiting groove, the first workpiece is limited in the second limiting groove by the first positioning pin and the second positioning pin, one end of the second workpiece extending into the second limiting groove is sleeved on the first positioning pin, and an elastic member is sleeved in the receiving groove and on the surface of the first positioning pin, so that the first positioning pin can extend out of the receiving groove and be embedded in the first through hole of the first workpiece and the second through hole of the second workpiece, so that the first workpiece and the second workpiece are limited and fixed in the fixing seat;

[0026] A receiving groove 14 is provided on one side of the second limiting groove 13 close to the first limiting groove 12 and on the bottom wall of the second limiting groove 13. A first positioning pin 15 is elastically connected to the inside of the receiving groove 14, and the first positioning pin 15 can extend into the first through hole 1001 and the second through hole 2001 to connect the first workpiece 1000 with the second workpiece 2000. A second positioning pin 16 is fixedly installed on the bottom wall on the other side of the second limiting groove 13.

[0027] The pin is embedded between the first through hole and the second through hole, so that the first workpiece and the second workpiece can be connected through the pin, and when the pin is embedded in the first through hole and the second through hole, the pin will abut against the first positioning pin, and as the pin continues to be pushed up, the pin gradually enters between the first through hole and the second through hole, and the first positioning pin disengages from the first through hole and the second through hole and compresses the elastic member in the accommodating groove, so that the first workpiece and the second workpiece can be connected through the pin.

[0028] An elastic member 17 is disposed between the first positioning pin 15 and the receiving groove 14 ; the elastic member 17 is always in a compressed state.

[0029] The diameter of the second positioning pin 16 is 1.5 times the diameter of the first positioning pin 15 .

[0030] The first positioning pin 15 and the second positioning pin 16 are both cylindrical in shape.

[0031] The upper end of the second positioning pin 16 is an arc-shaped end surface.

[0032] There is a height difference between the first limiting groove 12 and the second limiting groove 13 , and the first limiting groove 12 located above the second limiting groove 13 is communicated with the side wall of the fixing seat 11 .

[0033] When the second workpiece 2000 is inserted into the first limiting groove 12 and the first workpiece 1000 is inserted into the second limiting groove 13 , the first workpiece 1000 and the second workpiece 2000 are both in a horizontal state.

[0034] Embodiment 2: A product positioning fixture, comprising: a base 100, a base 10 disposed on the top of the base 100, a fixing seat 11 disposed on the top of the base 10, a first limiting groove 12 for placing a second workpiece 2000, and a second limiting groove 13 for placing a first workpiece 1000 are provided on the top of the fixing seat 11, the second workpiece 2000 has one end with a second through hole 2001 embedded in the interior of the first workpiece 1000, and the first workpiece 1000 has a first through hole 1001 corresponding to and penetrating the second through hole 2001;

[0035] A receiving groove 14 is provided on one side of the second limiting groove 13 close to the first limiting groove 12 and on the bottom wall of the second limiting groove 13. A first positioning pin 15 is elastically connected to the inside of the receiving groove 14, and the first positioning pin 15 can extend into the first through hole 1001 and the second through hole 2001 to connect the first workpiece 1000 with the second workpiece 2000. A second positioning pin 16 is fixedly installed on the bottom wall on the other side of the second limiting groove 13.

[0036] By placing the first workpiece into the second limiting groove and the second workpiece into the first limiting groove, the first workpiece and the second workpiece are initially positioned. Then, the first workpiece is embedded in the second positioning pin in the second limiting groove, and the first through hole of the first workpiece is aligned with the second through hole of the second workpiece and then jointly mounted on the first positioning pin, thereby greatly improving the position accuracy of the first workpiece and the second workpiece, reducing the position offset of the first workpiece, and being beneficial to maintaining the through connection between the second through hole and the first through hole, reducing the probability of failure of pin pressing, and thus improving the overall processing efficiency.

[0037] An elastic member 17 is disposed between the first positioning pin 15 and the receiving groove 14. The elastic member 17 is always in a compressed state; after the pin shaft is pressed between the first workpiece and the second workpiece, the first workpiece and the second workpiece are removed from the fixing seat, and the first positioning pin will automatically extend out of the receiving groove due to the elastic force of the elastic member, thereby completing the reset of the first positioning pin, which is convenient for the next installation of the first workpiece and the second workpiece.

[0038] The diameter of the second positioning pin 16 is 2.8 times the diameter of the first positioning pin 15 .

[0039] The first positioning pin 15 and the second positioning pin 16 are both cylindrical in shape.

[0040] The upper end of the second positioning pin 16 is an arc-shaped end surface.

[0041] A plurality of supporting legs 101 are disposed at the bottom of the base 100 .

[0042] The working principle is:

[0043] When in use, the first workpiece and the second workpiece are placed in the corresponding second limiting groove and the first limiting groove, the first workpiece is limited in the second limiting groove by the first positioning pin and the second positioning pin, one end of the second workpiece extending into the second limiting groove is sleeved on the first positioning pin, and an elastic member is sleeved in the receiving groove and on the surface of the first positioning pin, so that the first positioning pin can extend out of the receiving groove and be embedded in the first through hole of the first workpiece and the second through hole of the second workpiece, so as to limit and fix the first workpiece and the second workpiece in the fixing seat;

[0044] The pin is embedded between the first through hole and the second through hole, so that the first workpiece and the second workpiece can be connected through the pin, and when the pin is embedded in the first through hole and the second through hole, the pin will abut against the first positioning pin, and when the pin continues to be pushed up, the pin gradually enters between the first through hole and the second through hole, and the first positioning pin is separated from the first through hole and the second through hole and compresses the elastic member in the accommodating groove, so that the first workpiece and the second workpiece can be connected through the pin;

[0045] After the pin shaft is pressed between the first workpiece and the second workpiece, the first workpiece and the second workpiece are removed from the fixing seat. At this time, the first positioning pin will automatically extend out of the receiving groove due to the elastic force of the elastic member, thereby completing the resetting of the first positioning pin, making it easier to install the first workpiece and the second workpiece next time.

[0046] When the above-mentioned product positioning fixture is used, the first workpiece is placed into the second limiting groove and the second workpiece is placed into the first limiting groove to achieve preliminary positioning of the first workpiece and the second workpiece. Then, the first workpiece is embedded in the second limiting groove by the second positioning pin. The first through hole of the first workpiece is aligned with the second through hole of the second workpiece and then jointly mounted on the first positioning pin, thereby greatly improving the positioning accuracy of the first workpiece and the second workpiece, reducing the position deviation of the first workpiece, and is conducive to maintaining the through connection between the second through hole and the first through hole, reducing the probability of failure of the pin shaft to be pressed in, thereby improving the overall processing efficiency.

[0047] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A product positioning fixture, comprising: A base (100), a base (10) arranged on the top of the base (100), characterized in that: a fixing seat (11) is arranged on the top of the base (10), a first limiting groove (12) for placing a second workpiece (2000) and a second limiting groove (13) for placing the first workpiece (1000) are provided on the top of the fixing seat (11), one end of the second workpiece (2000) having a second through hole (2001) is embedded in the interior of the first workpiece (1000), and the first workpiece (1000) is provided with a first through hole (1001) corresponding to and penetrating the second through hole (2001); A receiving groove (14) is provided on one side of the second limiting groove (13) close to the first limiting groove (12) and on the bottom wall of the second limiting groove (13); a first positioning pin (15) is elastically connected to the interior of the receiving groove (14); and the first positioning pin (15) can extend into the interior of the first through hole (1001) and the second through hole (2001) to connect the first workpiece (1000) with the second workpiece (2000); and a second positioning pin (16) is fixedly mounted on the bottom wall on the other side of the second limiting groove (13).

2. The product positioning fixture according to claim 1, characterized in that: An elastic member (17) is provided between the first positioning pin (15) and the accommodating groove (14).

3. The product positioning fixture according to claim 2, characterized in that: The elastic member (17) is always in a compressed state.

4. The product positioning fixture according to claim 1, characterized in that: The diameter of the second positioning pin (16) is 1.2 to 3 times the diameter of the first positioning pin (15).

5. The product positioning fixture according to claim 1, characterized in that: The first positioning pin (15) and the second positioning pin (16) are both cylindrical in shape.

6. The product positioning fixture according to claim 1, characterized in that: The upper end of the second positioning pin (16) is an arc-shaped end surface.

7. The product positioning fixture according to claim 1, characterized in that: There is a height difference between the first limiting groove (12) and the second limiting groove (13), and the first limiting groove (12) located above the second limiting groove (13) is in communication with the side wall of the fixing seat (11).

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