In-pipe assembly guide mechanism

Abstract

The invention discloses an in-pipe assembly guide mechanism which comprises a mounting and positioning structure capable of positioning and mounting an outer cylinder part. The device further comprises a guide structure, the guide structure comprises a guide head and a guide rod, one end of the guide rod is arranged on the installation positioning structure, the other end of the guide rod is provided with the guide head, the guide rod can penetrate through the outer cylinder part, and the guide head can guide the inner cylinder part to be rapidly assembled into the outer cylinder part. Through guiding of the guiding structure, the inner cylinder part can be rapidly assembled into the outer cylinder part, extrusion of the inner cylinder part on the sealing ring in the outer cylinder part is reduced, and therefore the sealing ring cannot move or be damaged, and the good sealing effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic assembly, in particular to an in-tube assembly guide mechanism. Background Art

[0002] During the product assembly process, the sealing ring needs to have an interference fit with the product. When a sealing ring is set inside the outer cylinder, assembling other components inside the outer cylinder may expand or compress the sealing ring, and the sealing ring may also be damaged and pushed during the assembly of other components, causing the sealing ring to be damaged or displaced, which will affect the sealing effect of the sealing ring.

[0003] In order to prevent the seal ring from shifting during assembly and to achieve a good sealing effect, the product needs to have a guide part of sufficient size for guidance, but the product often cannot reserve a guide part of sufficient size. Based on this, when the seal ring is set in the outer cylinder, the problem that other components assembled in the outer cylinder will affect the position and sealing of the seal ring is what we need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide a guide mechanism for assembling in a tube, so that when the device is assembled in a tube, the inner tube member inside the outer tube member can be smoothly installed into the outer tube member along the guide structure, reducing the squeezing effect of the inner tube member on the sealing ring, so that the sealing ring will not shift and has a good sealing effect.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] An in-tube assembly guide mechanism comprises an installation positioning structure, wherein the installation positioning structure can position and install an outer cylinder member;

[0007] It also includes a guide structure, which includes a guide head and a guide rod. One end of the guide rod is arranged on the installation and positioning structure, and the other end of the guide rod is installed with the guide head. The guide rod can pass through the outer cylinder part, and the guide head can guide the inner cylinder part to be quickly assembled into the interior of the outer cylinder part.

[0008] Install the positioning structure: locate and install the outer cylinder, fix and install the guide structure;

[0009] Guide structure: When the inner cylinder is installed inside the outer cylinder, it is inconvenient to install. During the installation process, the inner cylinder may rub and squeeze the sealing ring, which may easily cause the sealing ring to deform or shift. This solution provides a guide structure for guiding the inner cylinder when the inner cylinder is installed inside the outer cylinder, so that the inner cylinder can be quickly assembled into the outer cylinder without affecting the position and shape of the sealing ring.

[0010] During use, passing the guide rod through the outer cylinder can further fix and position the outer cylinder. The guide head is installed at the end of the guide rod, and the guide head is used to guide the inner cylinder, so that the inner cylinder can move with the guide head and the guide rod to be smoothly assembled into the outer cylinder, thereby reducing the extrusion of the inner wall sealing ring of the outer cylinder and ensuring the sealing of the sealing ring.

[0011] Furthermore, the guide head is cylindrical, and the outer wall of the guide head includes a positioning section and a guiding section, the outer diameters of the positioning section and the guiding section both gradually decrease toward the direction close to the end of the guide head, the outer diameter of the positioning section is smaller than the outer diameter of the guiding section, and the portion of the guiding section protruding from the positioning section forms a guide platform;

[0012] A connector is disposed at one end of the guide rod away from the mounting and positioning structure. The connector is inserted into the inner wall of the guide head and is engaged with the inner wall of the guide head.

[0013] Specifically, a guide section of the positioning section is provided, and the outer diameter of the positioning section gradually decreases toward the direction close to the end of the guide head, so that the head size of the positioning section is small, which is convenient for the inner cylinder to be installed;

[0014] The outer diameter of the guide section gradually decreases towards the direction close to the guide rod, so when the guide section just enters the outer cylinder, it can form a gap with the sealing ring on the inner wall of the outer cylinder, and will not squeeze and damage the structure and position of the sealing ring.

[0015] The outer diameter of the positioning section is smaller than the outer diameter of the guide section, and the outer wall of the guide section protrudes from the outer wall of the positioning section to form a guide platform, which is used to preliminarily position the inner cylinder; the connector is inserted into the inner wall of the guide head for connection and positioning of the two, and the connector is engaged with the inner wall of the guide head so that the guide head is not easily shaken or displaced due to the installation of the inner cylinder. Because the outer cylinder is tubular, the inner cylinder, the guide head and the guide rod are connected together, which facilitates the inner cylinder to enter the outer cylinder along the cylindrical guide head and the guide rod inside the outer cylinder.

[0016] Furthermore, a fixing seat is provided at the bottom of the installation and positioning structure, one end of the guide rod is located above the installation and positioning structure, and the other end of the guide rod is fixed on the fixing seat.

[0017] A fixing seat is provided for installing and fixing the guide rod.

[0018] Furthermore, the installation and positioning structure also includes a mounting member, and the mounting members are all fixed on the fixing seat, and a mounting groove capable of positioning and fixing the outer cylinder member is provided in the middle of the mounting member;

[0019] A telescopic sleeve is further provided between the mounting member and the fixing seat, one end of the telescopic sleeve is fixed to the mounting member, and the other end of the telescopic sleeve is fixed to the fixing seat.

[0020] The fixed seat is also provided with the buffer cylinder, which avoids the mounting part. The buffer cylinder can drive the fixed seat and the guide rod fixed on the fixed seat to move up and down, and the telescopic direction of the buffer cylinder is the same as the telescopic direction of the telescopic sleeve.

[0021] Mounting piece: used to fix and position the outer cylinder. The outer cylinder will not change position after being installed into the mounting piece.

[0022] Specifically, because the fixing seat is located below the mounting member, the position of the outer cylinder member remains unchanged, and the expansion and contraction of the buffer cylinder provided on the fixing seat will drive the expansion and contraction of the telescopic sleeve to keep the position of the mounting member unchanged.

[0023] Specifically, the inner cylinder is subjected to downward pressure from the top, and the inner cylinder moves downward with the guide head and the guide rod, so that the inner cylinder enters the outer cylinder along with the guide head and the guide rod. In this process, the inner cylinder has the same outer diameter as the guide platform of the guide head, that is, smaller than the inner diameter of the outer cylinder. In the process of quickly passing into the outer cylinder, the inner cylinder will reduce the contact time and friction with the inner wall sealing ring of the outer cylinder, thereby reducing interference with the sealing ring and ensuring the sealing of the sealing ring as much as possible.

[0024] The guide rod pushes the fixed seat downward, so that the piston of the buffer cylinder fixed on the fixed seat is forced out. At this time, the function of the buffer cylinder is equivalent to a spring, that is, the state of the buffer cylinder is extended after the press-fitting is completed. After the press-fitting is completed, the downward pressure of the inner cylinder is cancelled, and the buffer cylinder will be inflated and retracted, driving the guide rod and the guide head to move upward, and the assembled inner cylinder and outer cylinder will be ejected together.

[0025] Furthermore, the surface of the mounting member is provided with a plurality of grooves, and the plurality of grooves are circumferentially distributed on the outside of the mounting groove. A limit block and a gear are provided in the groove. The limit block is rack-shaped and can mesh with the gear. The rotating gear can drive the limit block to move toward or away from the perpendicular midline of the mounting groove.

[0026] Because the overall length of the outer cylinder is relatively long, the mounting part only fixes one end of the outer cylinder and different outer cylinders may have different sizes due to model, production error, etc., assembling the inner cylinder at the other end of the outer cylinder may still affect the stability of the outer cylinder, thereby affecting the wear and extrusion degree of the guide structure and the inner cylinder on the sealing ring and the outer cylinder. In order to ensure the stability of the outer cylinder during assembly, this solution uses a limit block to clamp the outer cylinder to prevent the outer cylinder from shaking, shifting or tilting during assembly, resulting in assembly failure or poor quality of the assembled finished product.

[0027] Since the solution is provided with a limit block for clamping the outer cylinder, the clamping degree of the mounting part on the outer cylinder can be reduced and only used for preliminary limiting. After the inner cylinder is installed, the limit block is released from the clamping of the outer cylinder, and when the buffer cylinder retracts and drives the guide structure to push the inner cylinder upward, the outer cylinder can be pushed out together with the inner cylinder, which is convenient for taking out materials.

[0028] The limit block is in the shape of a rack, and can be moved by cooperating with a gear, so as to facilitate the control of the moving distance of the limit block and the real-time start and stop status;

[0029] The groove and the limit block are symmetrical about the midline of the installation groove, which can better maintain balance, position and clamp the outer cylinder; the groove is set to install the limit block so that the limit block does not affect the inner cylinder installed inside or outside the installation part

[0030] Furthermore, the mounting member is also provided with a detection structure, which is used to detect the position of the outer cylinder member.

[0031] A detection structure is set up to avoid empty installation without material, which will cause waste of inner cylinder parts and reduce assembly efficiency.

[0032] Furthermore, the detection structure includes a proximity switch and a proximity switch bracket, the proximity switch bracket is arranged on the surface of the mounting member, and the proximity switch is arranged on the proximity switch bracket.

[0033] A proximity switch is a non-contact sensor that is mainly used to detect the distance between an object and its sensitive area, thereby detecting the presence or absence of an object.

[0034] In summary, the present invention has the following beneficial effects compared with the prior art:

[0035] 1. The present invention sets a guide structure to assemble the inner cylinder part inside the outer cylinder part. Through the guidance of the guide structure, the inner cylinder part can be quickly assembled into the outer cylinder part along the guide structure, and the extrusion of the inner cylinder part on the inner sealing ring of the outer cylinder part is reduced, so that the sealing ring will not be displaced or damaged and has a good sealing effect;

[0036] 2. Setting the mounting parts On the basis of installing the outer cylinder part, a limit block is set on the mounting parts to further clamp and limit the outer cylinder part to ensure the stability of the outer cylinder part during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of the present invention, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2A top view of the present invention;

[0040] Figure 3 A cross-sectional view of the front view of the present invention;

[0041] Figure 4 For the present invention Figure 3 An enlarged view of one embodiment of part A;

[0042] The names corresponding to the reference numerals are: 101, guide head; 102, guide rod; 201, buffer cylinder; 202, mounting piece; 203, telescopic sleeve; 204, fixing seat; 205, limit block; 206, gear; 301, proximity switch; 302, proximity switch bracket. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0044] Example:

[0045] like Figure 1-Figure 4 As shown, an in-tube assembly guide mechanism includes an installation positioning structure, wherein the installation positioning structure can position and install an outer cylinder member;

[0046] It also includes a guide structure, which includes a guide head 101 and a guide rod 102. One end of the guide rod 102 is arranged on the installation and positioning structure, and the other end of the guide rod 102 is installed with the guide head 101. The guide rod 102 can pass through the outer cylinder, and the guide head 101 can guide the inner cylinder to be quickly assembled into the interior of the outer cylinder.

[0047] Install the positioning structure: locate and install the outer cylinder, fix and install the guide structure;

[0048] Guide structure: When the inner cylinder is installed inside the outer cylinder, it is inconvenient to install. During the installation process, the inner cylinder may rub and squeeze the sealing ring, which may easily cause the sealing ring to deform or shift. This solution provides a guide structure for guiding the inner cylinder when the inner cylinder is installed inside the outer cylinder, so that the inner cylinder can be quickly assembled into the outer cylinder without affecting the position and shape of the sealing ring.

[0049] During use, the guide rod 102 is passed through the outer cylinder to further fix and position the outer cylinder. The guide head 101 is installed at the end of the guide rod 102. The guide head 101 is used to guide the inner cylinder so that the inner cylinder can be smoothly assembled into the outer cylinder with the movement of the guide head 101 and the guide rod 102, thereby reducing the extrusion of the sealing ring on the inner wall of the outer cylinder and ensuring the sealing performance of the sealing ring.

[0050] It should be noted that the inner cylinder member described in the present invention may be an assembly member with a tubular, cylindrical or annular structure.

[0051] Furthermore, the guide head 101 is cylindrical, and the outer wall of the guide head 101 includes a positioning section and a guiding section. The outer diameters of the positioning section and the guiding section are gradually reduced toward the end of the guide head 101. The outer diameter of the positioning section is smaller than the outer diameter of the guiding section. The portion of the guiding section protruding from the positioning section forms a guide platform.

[0052] A connector is disposed at one end of the guide rod 102 away from the installation and positioning structure. The connector is inserted into the inner wall of the guide head 101 and is engaged with the inner wall of the guide head 101 .

[0053] Specifically, a guide section of the positioning section is provided, and the outer diameter of the positioning section gradually decreases toward the end of the guide head 101, so that the head size of the positioning section is small, which is convenient for the inner cylinder to be installed;

[0054] The outer diameter of the guide section gradually decreases towards the guide rod 102 , so when the guide section just enters the outer cylinder, it can form a gap with the sealing ring on the inner wall of the outer cylinder, and will not squeeze and damage the structure and position of the sealing ring.

[0055] The outer diameter of the positioning section is smaller than the outer diameter of the guide section, and the outer wall of the guide section protrudes from the outer wall of the positioning section to form a guide platform, which is used to preliminarily position the inner cylinder; the connector is inserted into the inner wall of the guide head 101 for connection and positioning of the two, and the connector is engaged with the inner wall of the guide head 101, so that the guide head 101 is not easy to shake or shift due to the installation of the inner cylinder. Because the outer cylinder is tubular, the inner cylinder, the guide head 101 and the guide rod 102 are connected together, which facilitates the inner cylinder to enter the outer cylinder along the cylindrical guide head 101 and the guide rod 102 inside the outer cylinder.

[0056] Specifically, in the specific implementation, the outer wall of the inner cylinder is made to have the same size as the outer wall of the guide platform, so that the inner cylinder can smoothly pass into the outer cylinder along with the guide head 101 and the guide rod 102, thereby reducing the squeezing and damage to the sealing ring.

[0057] When the above solution is implemented, the outer edge of the guide platform is chamfered.

[0058] Furthermore, a fixing seat 204 is provided at the bottom of the installation and positioning structure, one end of the guide rod 102 is located above the installation and positioning structure, and the other end of the guide rod 102 is fixed on the fixing seat 204 .

[0059] A fixing seat 204 is provided for mounting and fixing the guide rod 102 .

[0060] Furthermore, the installation and positioning structure further includes an installation member 202, and the installation members 202 are all fixed on the fixing seat 204, and a mounting groove capable of positioning and fixing the outer cylinder member is provided in the middle of the installation member 202;

[0061] A telescopic sleeve 203 is further provided between the mounting member 202 and the fixing seat 204. One end of the telescopic sleeve 203 is fixed to the mounting member 202, and the other end of the telescopic sleeve 203 is fixed to the fixing seat 204.

[0062] The buffer cylinder 201 is also provided on the fixed seat 204. The buffer cylinder 201 avoids the mounting part 202. The buffer cylinder 201 can drive the fixed seat 204 and the guide rod 102 fixed on the fixed seat 204 to move up and down. The telescopic direction of the buffer cylinder 201 is the same as the telescopic direction of the telescopic sleeve 203.

[0063] Mounting member 202: used to fix and position the outer cylinder member. The outer cylinder member remains in the same position after being installed into the mounting member 202;

[0064] Specifically, since the fixing seat 204 is located below the mounting member 202 , the position of the outer cylinder member remains unchanged, and the expansion and contraction of the buffer cylinder 201 provided on the fixing seat 204 drives the expansion and contraction of the expansion sleeve 203 to keep the position of the mounting member 202 unchanged.

[0065] Specifically, the inner cylinder is subjected to downward pressure from the top, and the inner cylinder moves downward with the guide head 101 and the guide rod 102, so that the inner cylinder enters the outer cylinder along with the guide head 101 and the guide rod 102. In this process, the inner cylinder has the same outer diameter as the guide platform of the guide head 101, that is, smaller than the inner diameter of the outer cylinder, so that the inner cylinder will reduce the contact time and friction with the inner wall sealing ring of the outer cylinder in the process of quickly passing into the outer cylinder, thereby reducing interference with the sealing ring and ensuring the sealing performance of the sealing ring as much as possible.

[0066] The guide rod 102 pushes the fixing seat 204 downward, so that the piston of the buffer cylinder 201 fixed on the fixing seat 204 is forced to be pressed out. At this time, the function of the buffer cylinder 201 is equivalent to a spring, that is, the state of the buffer cylinder 201 after the press-fitting is completed is extended. After the press-fitting is completed, the downward pressure of the inner cylinder is cancelled, and the buffer cylinder 201 will be inflated and retracted, driving the guide rod 102 and the guide head 101 to move upward, and the assembled inner cylinder and outer cylinder are pushed out together.

[0067] Furthermore, the surface of the mounting member 202 is provided with a plurality of grooves, and the plurality of grooves are circumferentially distributed on the outer side of the mounting groove. A limit block 205 and a gear 206 are provided in the groove. The limit block 205 is rack-shaped and can mesh with the gear 206. The rotating gear 206 can drive the limit block 205 to move in a direction close to or away from the perpendicular midline of the mounting groove.

[0068] Since the overall length of the outer cylinder is relatively long, the mounting member 202 only fixes one end of the outer cylinder and different outer cylinders may have different sizes due to model, production error, etc., assembling the inner cylinder at the other end of the outer cylinder may still affect the stability of the outer cylinder, thereby affecting the wear and extrusion degree of the guide structure and the inner cylinder on the sealing ring and the outer cylinder. In order to ensure the stability of the outer cylinder during assembly, the present solution uses a limit block 205 to clamp the outer cylinder to prevent the outer cylinder from shaking, shifting or tilting during assembly, which may cause assembly failure or poor quality of the assembled finished product.

[0069] Since the present solution is provided with a limit block 205 for clamping the outer cylinder, the clamping degree of the mounting member 202 on the outer cylinder can be reduced and only used for preliminary limiting. After the inner cylinder is installed, the limit block 205 is released from clamping the outer cylinder, and when the buffer cylinder 201 retracts and drives the guide structure to push the inner cylinder upward, the outer cylinder can be pushed out together with the inner cylinder, making it convenient to take out the material.

[0070] The limit block 205 is in the shape of a rack, and can move with the gear 206, so as to control the moving distance of the limit block 205 and the real-time start and stop state;

[0071] The groove and the limit block 205 are symmetrical about the mid-perpendicular line of the installation groove, which can better maintain balance, position and clamp the outer cylinder;

[0072] A groove is provided to install the limit block 205, so that the limit block 205 does not affect the inner cylinder part installed inside or outside the mounting part 202. Specifically, two limit blocks 205 are provided for easy operation.

[0073] As an implementation method of the above solution, the distance between the end of the limit block 205 and the outer cylinder can be sensed by a sensor, and then the sensor controls the motor to rotate, thereby driving the gear 206 to move the limit block 205 until the end of the limit block 205 is pressed against the outer cylinder. A detachable shield is provided on the groove, and the upper surface of the shield is level with the upper surface of the mounting member 202.

[0074] As one of the above-mentioned feasible implementation schemes, a detector is provided to detect the position of the inner cylinder. When the detector detects that the inner cylinder is successfully installed in the outer cylinder, the motor is reversed, so that the limit block 205 automatically releases the restriction on the outer cylinder.

[0075] Furthermore, a detection structure is provided on the mounting member 202. The detection structure is used to detect the position of the outer cylinder member. The detection structure is provided to avoid empty installation without material, resulting in waste of assembling the inner cylinder member and reduced assembly efficiency.

[0076] Furthermore, the detection structure includes a proximity switch 301 and a proximity switch bracket 302 . The proximity switch bracket 302 is disposed on the surface of the mounting member 202 , and the proximity switch 301 is disposed on the proximity switch bracket 302 .

[0077] The proximity switch 301 is a non-contact sensor that is mainly used to detect the distance between an object and its sensitive area, thereby detecting the presence of an object. Common proximity switches 301 used in automated production lines and other fields include: LJC12A3-5-Z / BX capacitive proximity switch, E18-D80NK photoelectric proximity switch, and MC-38 magnetic proximity switch.

[0078] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An in-pipe assembly guide mechanism, characterized in that: It includes an installation and positioning structure, and the installation and positioning structure can position and install the outer cylinder member; The invention also comprises a guide structure, wherein the guide structure comprises a guide head (101) and a guide rod (102), one end of the guide rod (102) is arranged on the installation and positioning structure, and the other end of the guide rod (102) is installed with the guide head (101), the guide rod (102) can pass through the outer cylinder, and the guide head (101) can guide the inner cylinder to be quickly assembled into the interior of the outer cylinder.

2. The guide mechanism for in-pipe assembly according to claim 1, characterized in that: The guide head (101) is cylindrical, and the outer wall of the guide head (101) comprises a positioning section and a guiding section, the outer diameters of the positioning section and the guiding section both gradually decrease towards the end of the guide head (101), the outer diameter of the positioning section is smaller than the outer diameter of the guiding section, and the portion of the guiding section protruding from the positioning section forms a guide platform; A connecting head is provided at one end of the guide rod (102) away from the installation positioning structure, and the connecting head is inserted into the inner wall of the guide head (101) and is clamped with the inner wall of the guide head (101).

3. The guide mechanism for in-pipe assembly according to claim 1, characterized in that: A fixing seat (204) is provided at the bottom of the installation and positioning structure, one end of the guide rod (102) is located above the installation and positioning structure, and the other end of the guide rod (102) is fixed on the fixing seat (204).

4. The guide mechanism for in-pipe assembly as claimed in claim 3, characterized in that: The installation and positioning structure further comprises an installation member (202), wherein the installation member (202) is fixed on the fixing seat (204), and a mounting groove capable of positioning and fixing the outer cylinder member is provided in the middle of the installation member (202); A telescopic sleeve (203) is further provided between the mounting member (202) and the fixing seat (204), one end of the telescopic sleeve (203) being fixed to the mounting member (202), and the other end of the telescopic sleeve (203) being fixed to the fixing seat (204). The buffer cylinder (201) is also provided on the fixed seat (204). The buffer cylinder (201) avoids the mounting member (202). The buffer cylinder (201) can drive the fixed seat (204) and the guide rod (102) fixed on the fixed seat (204) to move up and down. The telescopic direction of the buffer cylinder (201) is the same as the telescopic direction of the telescopic sleeve (203).

5. The guide mechanism for in-pipe assembly as claimed in claim 4, characterized in that: The surface of the mounting member (202) is provided with a plurality of grooves, the plurality of grooves being circumferentially distributed on the outer side of the mounting groove, a limit block (205) and a gear (206) being provided in the groove, the limit block (205) being in the shape of a rack and being able to mesh with the gear (206), and the rotating gear (206) being able to drive the limit block (205) to move in a direction close to or away from the perpendicular midline of the mounting groove.

6. The guide mechanism for in-pipe assembly as claimed in claim 4, characterized in that: The mounting member (202) is also provided with a detection structure, and the detection structure is used to detect the position of the outer cylinder member.

7. The guide mechanism for in-pipe assembly according to claim 6, characterized in that: The detection structure comprises a proximity switch (301) and a proximity switch bracket (302); the proximity switch bracket (302) is arranged on the surface of the mounting member (202); and the proximity switch (301) is arranged on the proximity switch bracket (302).

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