A rapid positioning tool

Abstract

The present application relates to a kind of quick positioning tool, belong to tooling fixture technical field, solve the quick positioning tool in prior art needs manual cleaning, resulting in lower assembly efficiency, prone to worker injury Problem.The present application includes mounting plate, tray, positioning clamping unit and cleaning unit, positioning clamping unit is set on mounting plate, for positioning tray when tray is installed to mounting plate;Positioning clamping unit includes first positioning datum end face and second positioning datum end face, second positioning datum end face can be contacted with first positioning datum end face;Cleaning unit is installed on positioning clamping unit, for cleaning first positioning datum end face and second positioning datum end face.The present application realizes the automatic cleaning of first positioning datum end face and second positioning datum end face, not only can ensure the installation accuracy of tray and mounting plate, but also can improve cleaning efficiency, also can avoid the security risk brought by worker operation error, prevent worker injury.

Description

Technical Field

[0001] This invention relates to the field of tooling and fixture technology, and in particular to a quick positioning tooling. Background Technology

[0002] In the fields of mechanical manufacturing, measurement, machine tools, and robotic automated production lines, the datum is a widely used concept. A datum is a point, line, or surface used to determine the hierarchy and relationships between objects. In the mechanical industry, we collectively refer to the datum used as a reference as the zero point. In machining or measurement, the zero point of the workpiece must first be determined, and then machining or measurement can be performed based on the zero point. However, during machining, parts do not remain stationary. Moving from one process to another, or from one machine tool to another, requires recalibrating the zero point, resulting in a lot of auxiliary work, significant downtime, and reduced work efficiency.

[0003] Existing technologies address these issues using rapid positioning fixtures. A rapid positioning fixture is an independent positioning and locking device that ensures the zero point remains constant while parts switch between workstations, processes, and machine tools. This saves time spent re-aligning the zero point and significantly improves work efficiency. However, because rapid positioning fixtures are extremely precise, the positioning support surfaces must be kept highly clean. Even the smallest particles left behind can cause deviations in system accuracy, so careful cleaning is essential. During assembly, workers need to clean the positioning support surfaces with a high-pressure air gun to keep them clean, which leads to lower assembly efficiency and also poses safety hazards. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a quick positioning fixture to solve the problems of existing quick positioning fixtures requiring manual cleaning, resulting in low assembly efficiency and the risk of worker injury.

[0005] The objective of this invention is mainly achieved through the following technical solutions:

[0006] A quick positioning fixture, characterized in that it includes a mounting plate, a tray, a positioning and clamping unit, and a cleaning unit, wherein the positioning and clamping unit is disposed on the mounting plate and is used to position the tray when it is installed onto the mounting plate;

[0007] The positioning and mounting unit includes a first positioning reference end face and a second positioning reference end face. The second positioning reference end face is disposed opposite to the first positioning reference end face, and the second positioning reference end face can contact the first positioning reference end face.

[0008] The cleaning unit is installed on the positioning and clamping unit and is used to clean the first positioning reference end face and the second positioning reference end face.

[0009] Furthermore, the positioning and clamping unit also includes a pull pin post and a positioning and clamping mechanism. The pull pin post can be inserted into the positioning and clamping mechanism, which is used to position and lock the inserted pull pin post.

[0010] Furthermore, the first positioning reference end face is disposed on the positioning and clamping mechanism, and the second positioning reference end face is disposed on the tray.

[0011] Furthermore, the rivet post is mounted on the tray, and the positioning and clamping mechanism is mounted on the mounting plate.

[0012] Furthermore, the positioning and mounting mechanism includes a base, a locking wedge, and a positioning bead.

[0013] Furthermore, the base is provided with a first receiving cavity, a second receiving cavity and a third receiving cavity. The first receiving cavity is used to install a positioning bead, the second receiving cavity is used to install a locking wedge, and the third receiving cavity is used to insert a pull rivet post and position the pull rivet post.

[0014] Furthermore, the first receiving cavity is connected to the second receiving cavity.

[0015] Furthermore, the locking wedge can slide within the second receiving cavity to control the positioning bead to protrude or retract into the first receiving cavity.

[0016] Furthermore, the pull stud is provided with a locking groove, and the positioning bead can be inserted into the locking groove.

[0017] Furthermore, the mounting plate is provided with a first air passage, which is connected to an external air passage.

[0018] The technical solution of this invention can achieve at least one of the following effects:

[0019] (1) The present invention provides a quick positioning fixture, including a mounting plate, a tray, a positioning and clamping unit and a cleaning unit. The positioning and clamping unit is disposed on the mounting plate and is used to position the tray when it is installed on the mounting plate.

[0020] The positioning and mounting unit includes a first positioning reference end face and a second positioning reference end face. The second positioning reference end face is disposed opposite to the first positioning reference end face, and the second positioning reference end face can contact the first positioning reference end face.

[0021] The cleaning unit is installed on the positioning and clamping unit and is used to clean the first positioning reference end face and the second positioning reference end face;

[0022] The cleaning unit includes a blowing mechanism, which comprises an air chamber, a first air hole, a second air hole, and a third air passage. One end of the third air passage is connected to an external air path, and the other end is connected to a third receiving cavity. The air chamber, the first air hole, and the second air hole are all disposed on the pull pin post. The first air hole and the second air hole are both connected to the air chamber. The first air hole is used to blow clean the first positioning reference end face, keeping the first positioning reference end face clean. The second air hole is used to blow clean the second positioning reference end face, keeping the second positioning reference end face clean.

[0023] The first and second positioning reference end faces are continuously cleaned by the purging mechanism, keeping them clean and preventing accuracy deviations caused by residual particles on the first and second positioning reference end faces. This not only ensures the installation accuracy of the tray and mounting plate, but also improves cleaning efficiency and avoids safety hazards caused by worker errors, preventing worker injuries.

[0024] (2) The cleaning unit of the present invention is further provided with a wiping mechanism, which includes a rotating sleeve, a bracket, a first wiping component, and a second wiping component. The first wiping component includes a first wiping block, and the second wiping component includes a second wiping block. The rotating sleeve is sleeved on the base and can rotate along the axis of the base and slide up and down. The bracket is mounted on the rotating sleeve and can rotate synchronously with the rotating sleeve. The first wiping component is mounted on the bracket and can slide up and down along the axis of the bracket, and can also rotate with the bracket. The first wiping block maintains contact with the first positioning reference end face. The first wiping component is used to wipe the first positioning reference end face; the second wiping component is mounted on the bracket and can also rotate with the bracket. The second wiping block keeps in contact with the second positioning reference end face and is used to wipe the second positioning reference end face; by rotating the rotating sleeve, the bracket is driven to rotate, thereby driving the first wiping component and the second wiping component to rotate, thereby controlling the first wiping block to wipe the first positioning reference end face and controlling the second wiping block to wipe the second positioning reference end face, thereby further improving the cleanliness of the first positioning reference end face and the second positioning reference end face, and thus further improving the positioning accuracy.

[0025] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0026] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0027] Figure 1 This is an exploded view of the positioning fixture of Embodiment 1 of the present invention;

[0028] Figure 2 This is one of the structural schematic diagrams of the positioning and mounting unit in Embodiment 1 of the present invention;

[0029] Figure 3 This is a second schematic diagram of the positioning and mounting unit of Embodiment 1 of the present invention;

[0030] Figure 4 for Figure 3 Partial sectional view of section A;

[0031] Figure 5 This is a cross-sectional view of the positioning and clamping mechanism of Embodiment 1 of the present invention;

[0032] Figure 6 This is a cross-sectional view of the base of Embodiment 1 of the present invention;

[0033] Figure 7 This is a schematic diagram of the wiping mechanism according to Embodiment 2 of the present invention;

[0034] Figure 8 This is a schematic diagram of the rotating sleeve in Embodiment 2 of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the first wiping component in Embodiment 2 of the present invention;

[0036] Figure 10 This is a schematic diagram of the structure of the first wiping block in Embodiment 2 of the present invention;

[0037] Figure 11 This is a schematic diagram of the structure of the first mounting disk in Embodiment 2 of the present invention;

[0038] Figure 12 This is a schematic diagram of the structure of the first driving ring in Embodiment 2 of the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of the second wiping component in Embodiment 2 of the present invention;

[0040] Figure 14 This is a schematic diagram of the structure of the second wiping block in Embodiment 2 of the present invention;

[0041] Figure 15 This is a schematic diagram of the structure of the second mounting disk in Embodiment 2 of the present invention;

[0042] Figure 16This is a schematic diagram of the structure of the second driving ring in Embodiment 2 of the present invention;

[0043] Figure 17 This is a schematic diagram of the linkage rod in Embodiment 2 of the present invention.

[0044] Figure label:

[0045] 100. Mounting plate; 200. Tray; 300. Positioning and clamping unit; 400. Cleaning unit;

[0046] 1. First positioning reference end face; 2. Second positioning reference end face; 3. Pull pin post; 31. Locking groove; 32. Air cavity; 33. First air hole; 34. Second air hole; 4. Positioning and mounting mechanism; 41. Base; 411. First receiving cavity; 412. Second receiving cavity; 413. Third receiving cavity; 414. Second air passage; 415. Third air passage; 416. First slide rail; 42. Locking wedge block; 43. Positioning bead; 44. First spring; 45. Expansion cavity; 5. Wiping mechanism; 51. Rotating sleeve; 511. Limiting groove; 512. First sliding protrusion; 52. Bracket; 521. Limiting plate; 522. Second spring; 523. Mounting plate limiting slide rail; 53. First wiping assembly; 531. First wiping block; 5311 5311, First wiping end face; 532, First drive groove; 533, First mounting plate; 5321, First wiping block limiting groove; 5322, Limiting slider; 5323, Clearance hole; 5324, Second sliding protrusion; 533, First drive ring; 5331, First drive tooth; 5332, First drive slide rail; 54, Second wiping assembly; 541, Second wiping block; 5411, Second wiping end face; 5412, Second drive groove; 542, Second mounting plate; 5421, Second wiping block limiting groove; 543, Second drive ring; 5431, Second drive tooth; 5432, Second drive slide rail; 55, Linkage rod; 551, Transmission tooth; 552, Second slide rail; 56, Third spring; 57, Fourth spring. Detailed Implementation

[0047] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0048] Example 1

[0049] In one specific embodiment of the present invention, a rapid positioning fixture is disclosed, such as... Figure 1As shown, the system includes a mounting plate 100, a tray 200, a positioning and clamping unit 300, and a cleaning unit 400. The mounting plate 100 can be installed on the machine tool worktable, and the tray 200 is used to install the workpiece to be processed. The positioning and clamping unit 300 is disposed on the mounting plate 100 and is used to quickly and accurately position the tray 200 when it is installed on the mounting plate 100 to maintain the positioning accuracy of the tray 200. The cleaning unit 400 is disposed on the positioning and clamping unit 300 and is used to clean the positioning and clamping unit 300. Compared with the prior art, when the tray 200 is installed on the mounting plate 100, the cleaning unit 400 automatically cleans the positioning and clamping unit 300, which not only ensures the installation accuracy of the tray 200 and the mounting plate 100, but also improves cleaning efficiency. At the same time, it can also avoid safety hazards caused by worker operation errors and prevent worker injuries.

[0050] Preferably, the mounting plate 100 is provided with a first air passage, which is connected to an external air passage.

[0051] Preferably, such as Figure 2 and Figure 3 As shown, the positioning and clamping unit 300 includes a first positioning reference end face 1, a second positioning reference end face 2, a pull pin post 3, and a positioning and clamping mechanism 4. The first positioning reference end face 1 is disposed on the positioning and clamping mechanism 4, which is disposed on the mounting plate 100. The second positioning reference end face 2 and the pull pin post 3 are both disposed on the tray 200. The second positioning reference end face 2 is disposed opposite to the first positioning reference end face 1, and the second positioning reference end face 2 can contact the first positioning reference end face 1, so that when the tray 200 is clamped onto the mounting plate 100, it is used to position the tray 200, so that the upper mounting surface of the tray 200 is parallel to the table surface of the machine tool. The pull pin post 3 is located on the second positioning reference end face 2 and can be inserted into the positioning and clamping mechanism 4. The positioning and clamping mechanism 4 is used to position and lock the inserted pull pin post 3, thereby realizing the rapid positioning and fixing of the tray 200, and thus realizing the rapid positioning of the workpiece to be processed mounted on the tray 200, improving the positioning efficiency and positioning accuracy.

[0052] Preferably, such as Figure 4 As shown, the rivet post 3 is provided with a locking groove 31, which is an arc-shaped groove and is circumferentially arranged on the column surface of the rivet post 3.

[0053] Preferably, such as Figure 5 and Figure 6As shown, the positioning and clamping mechanism 4 includes a base 41, a locking wedge 42, a positioning bead 43, a first spring 44, and an expansion cavity 45. One end of the base 41 is fixedly connected to the mounting plate 100, and the other end is the first positioning reference end face 1. The base 41 is provided with a first receiving cavity 411, a second receiving cavity 412, a third receiving cavity 413, and a second air passage 414. The third receiving cavity 413 is used to insert the pull rivet 3 and position the pull rivet 3. The first receiving cavity 411 is connected to the second receiving cavity 412. The positioning bead 43 is disposed in the first receiving cavity 411 and can protrude out of or retract into the first receiving cavity 411. The positioning bead 43 is used to position the pull rivet 3. The locking wedge 42 is located in the second receiving cavity 412 and can slide within the second receiving cavity 412. It is used to control the positioning bead 43 to protrude or retract into the first receiving cavity 411, thereby realizing the locking and fixing of the tie pin 3 and the release of the locking and fixing. The first spring 44 is located in the second receiving cavity 412, with one end connected to the second receiving cavity 412 and the other end connected to the locking wedge 42. The first spring 44 is used to apply an elastic thrust to the locking wedge 42 at all times. The expansion cavity 45 is formed by the locking wedge 42 and the second receiving cavity 412. The expansion cavity 45 is connected to one end of the second air passage 414, and the other end of the second air passage 414 is connected to the first air passage.

[0054] In use, compressed gas is injected into the expansion chamber 45 through the first and second air passages 414 via an external air passage. The expansion chamber 45 expands, pushing the locking wedge 42 to slide away from the first positioning reference end face 1, thereby removing the force on the positioning bead 43 and causing the positioning bead 43 to retract into the first receiving chamber 411. The pull pin 3 is inserted into the third receiving chamber 413. When the second positioning reference end face 2 contacts the first positioning reference end face 1, the external air passage is disconnected. Under the elastic thrust of the first spring 44, the locking wedge 42 is pushed to slide towards the first positioning reference end face 1, thereby applying a force to the positioning bead 43, causing the positioning bead 43 to protrude out of the first receiving chamber 411 and be inserted into the locking groove 31, locking and fixing the pull pin 3. This achieves rapid positioning and fixing of the tray 200, thereby improving the positioning efficiency and positioning accuracy of mounting the tray 200 onto the mounting plate 100.

[0055] Preferably, the cleaning unit 400 includes a blowing mechanism, which continuously blows and cleans the first positioning reference end face 1 and the second positioning reference end face 2 when the tray 200 is clamped onto the mounting plate 100, so as to keep the first positioning reference end face 1 and the second positioning reference end face 2 clean, thereby preventing the accuracy deviation caused by residual particles on the first positioning reference end face 1 and the second positioning reference end face 2, thereby improving the positioning accuracy of the positioning fixture.

[0056] Preferably, the purging mechanism includes an air chamber 32, a first air hole 33, a second air hole 34, and a third air passage 415. The third air passage 415 is disposed on the base 41, with one end connected to the first air passage and the other end connected to the third receiving cavity 413. The air chamber 32, the first air hole 33, and the second air hole 34 are all disposed on the pull stud post 3. The first air hole 33 and the second air hole 34 are both connected to the air chamber 32. The first air hole 33 is used to purge the first positioning reference end face 1 to keep the first positioning reference end face 1 clean. The second air hole 34 is used to purge the second positioning reference end face 2 to keep the second positioning reference end face 2 clean.

[0057] In use, when the tray 200 is clamped onto the mounting plate 100, the pull pin 3 is inserted into the third receiving cavity 413 for positioning and locking. At the same time, compressed gas is injected into the air cavity 32 through the first air passage and the third air passage 415 via the external air passage. The first positioning reference end face 1 is purged through the first air hole 33, and the second positioning reference end face 2 is purged through the second air hole 34. This achieves continuous purging and cleaning of the first positioning reference end face 1 and the second positioning reference end face 2 while the tray 200 is clamped onto the mounting plate 100, keeping the first positioning reference end face 1 and the second positioning reference end face 2 clean. This prevents accuracy deviations caused by residual particles on the first positioning reference end face 1 and the second positioning reference end face 2, thereby improving the positioning accuracy of the positioning fixture. Furthermore, when the tray 200 is clamped onto the mounting plate 100, manual cleaning is not required, improving assembly efficiency and the safety of manual operation.

[0058] Preferably, the first air hole 33 is inclined towards the first positioning reference end face 1, that is, the first air hole 33 is inclined away from the second positioning reference end face 2, so that the gas blown out of the first air hole 33 can be concentrated towards the first positioning reference end face 1, improving the cleaning effect on the first positioning reference end face 1; the second air hole 34 is inclined towards the second positioning reference end face 2, so that the gas blown out of the second air hole 34 can be concentrated towards the second positioning reference end face 2, improving the cleaning effect on the second positioning reference end face 2, and at the same time continuously cleaning the second positioning reference end face 2, so that the second positioning reference end face 2 can be kept clean, thereby improving the positioning accuracy of the contact between the second positioning reference end face 2 and the first positioning reference end face 1.

[0059] Preferably, multiple first air holes 33 are provided, and the multiple first air holes 33 are arranged circumferentially, thereby increasing the blowing direction and simultaneously increasing the blowing area on the first positioning reference end face 1, thereby achieving comprehensive blowing on the first positioning reference end face 1 and further improving the cleaning effect on the first positioning reference end face 1.

[0060] Preferably, multiple second air holes 34 are provided, and the multiple second air holes 34 are arranged circumferentially, thereby increasing the blowing direction and simultaneously increasing the blowing area on the second positioning reference end face 2, thereby achieving comprehensive blowing on the second positioning reference end face 2 and further improving the cleaning effect on the second positioning reference end face 2.

[0061] Preferably, the first air hole 33 is provided in multiple rows. The multiple rows of the first air hole 33 enable the pull pin 3 to be inserted into the third receiving cavity 413, and can continuously blow and clean the first positioning reference end face 1 before the second positioning reference end face 2 contacts the first positioning reference end face 1, so that the first positioning reference end face 1 can be kept clean.

[0062] Example 2

[0063] Example 2 is a further improvement based on Example 1. The cleaning unit 400 further includes a wiping mechanism 5, which is used to wipe the first positioning reference end face 1 and the second positioning reference end face 2 to further improve the cleanliness of the first positioning reference end face 1 and the second positioning reference end face 2, thereby further improving the positioning accuracy of the first positioning reference end face 1 and the second positioning reference end face 2, and further improving the positioning accuracy of the positioning fixture. Through the coordinated action of the blowing mechanism and the wiping mechanism 5, the cleanliness of the first positioning reference end face 1 and the second positioning reference end face 2 can be further improved.

[0064] Preferably, such as Figure 7 and Figure 8As shown, the wiping mechanism 5 includes a rotating sleeve 51, a bracket 52, a first wiping assembly 53, a second wiping assembly 54, and a linkage rod 55. The rotating sleeve 51 is provided with a limiting groove 511. The first wiping assembly 53 includes a first wiping block 531, and the second wiping assembly 54 includes a second wiping block 541. The rotating sleeve 51 is sleeved on the base 41 and can rotate along the axis of the base 41 and slide up and down. The bracket 52 is installed in the limiting groove 511, which restricts the relative rotation of the bracket 52 and the rotating sleeve 51, so that the bracket 52 can rotate synchronously with the rotating sleeve 51. The bracket 52 can also slide up and down within the limiting groove 511. The first wiping assembly 53 is installed on the bracket 52 and can slide up and down along the axis of the bracket 52, and can also rotate with the bracket 52. The first wiping block 531 is aligned with the first positioning reference. The first positioning reference end face 1 is kept in contact and used to wipe the first positioning reference end face 1 to further improve the cleanliness of the first positioning reference end face 1; the second wiping assembly 54 is mounted on the bracket 52 and can also rotate with the bracket 52. The second wiping block 541 is kept in contact with the second positioning reference end face 2 and used to wipe the second positioning reference end face 2 to further improve the cleanliness of the second positioning reference end face 2; the linkage rod 55 is mounted between the first wiping assembly 53 and the second wiping assembly 54 and is connected to the first wiping assembly 53 and the second wiping assembly 54. It is used to control the first wiping block 531 and the second wiping block 541 to move synchronously along the radial direction of the bracket 52, so that the first wiping block 531 can exit the first positioning reference end face 1 and the second wiping block 541 can exit the second positioning reference end face 2 to avoid interfering with the contact between the second positioning reference end face 2 and the first positioning reference end face 1;

[0065] In use, the tray 200 is fastened onto the wiping mechanism 5, so that the second positioning reference end face 2 contacts the second wiping block 541 and the first positioning reference end face 1 contacts the first wiping block 531, and a downward pressure is applied to the tray 200. The downward pressure applied to the tray 200 is transmitted to the rotating sleeve 51 through the second wiping assembly 54 and the bracket 52. Under the action of the downward pressure, the rotating sleeve 51 rotates and slides downward along the axis of the base 41. The rotation of the rotating sleeve 51 drives the bracket 52 to rotate, thereby driving the first wiping assembly 53 and the second wiping assembly 54 to rotate, thereby realizing the control of the first wiping block 531 to wipe the first positioning reference end face 1 and the second wiping block 541 to wipe the second positioning reference end face 2.

[0066] Meanwhile, since the first positioning reference end face 1 is in contact with the first wiping block 531, the first wiping assembly 53 is restricted from sliding downward, thereby allowing the first wiping assembly 53 and the second wiping assembly 54 to move relative to each other in the vertical direction, which in turn drives the linkage rod 55 to rotate. The rotation of the linkage rod 55 controls the first wiping block 531 and the second wiping block 541 to move synchronously along the radial direction of the rotating sleeve 51. That is, before the first wiping assembly 53 and the second wiping assembly 54 come into contact, the first wiping block 531 is controlled to exit the first positioning reference end face 1, and the second wiping block 541 is controlled to exit the second positioning reference end face 2, so as to avoid interference between the second positioning reference end face 2 and the first positioning reference end face 1.

[0067] When the first wiping assembly 53 and the second wiping assembly 54 come into contact, the base 41, rotating sleeve 51, bracket 52, first wiping assembly 53, second wiping assembly 54 and linkage rod 55 will be locked, forming a rigidly connected whole. In order to prevent the rigidly connected whole from obstructing the contact between the second positioning reference end face 2 and the first positioning reference end face 1, at this time, under the continuous action of the downward pressure, the bracket 52 slides into the limiting groove 511 to realize the retraction action, so that the second positioning reference end face 2 can contact the first positioning reference end face 1 and achieve precise positioning.

[0068] Preferably, the outer circumference of the base 41 is further provided with a first slide rail 416, which is spirally arranged.

[0069] Preferably, the rotating sleeve 51 is further provided with a first sliding protrusion 512. The first sliding protrusion 512 is disposed on the inner wall of the rotating sleeve 51 and can be inserted into the first slide rail 416 and slide along the first slide rail 416, so that the rotating sleeve 51 can rotate along the axis of the base 41 and slide up and down when it is subjected to external force.

[0070] Preferably, the bracket 52 includes a limiting plate 521, which is installed in a limiting groove 511 to restrict the relative rotation of the bracket 52 and the rotating sleeve 51, so that the bracket 52 can rotate synchronously with the rotating sleeve 51. At the same time, the limiting plate 521 can slide up and down in the limiting groove 511, so that when the first wiping component 53 and the second wiping component 54 come into contact, the limiting plate 521 slides into the limiting groove 511 to achieve a retraction action, ensuring that the second positioning reference end face 2 can contact the first positioning reference end face 1 to achieve accurate positioning.

[0071] Preferably, the bracket 52 further includes a second spring 522, one end of which is fixedly connected to the limiting plate 521, and the other end is fixedly installed in the limiting groove 511. The second spring 522 is used to apply an elastic thrust to the limiting plate 521. When the downward pressure applied to the bracket 52 is removed, the limiting plate 521 can be controlled to automatically return to the initial position, so that the first wiping block 531 can contact the first positioning reference end face 1.

[0072] Preferably, the limiting plate 521 is provided with a mounting plate limiting groove 523, which extends in the vertical direction.

[0073] Preferably, such as Figure 9 As shown, the first wiping assembly 53 further includes a first mounting plate 532 and a first driving ring 533. Both the first wiping block 531 and the first driving ring 533 are mounted on the first mounting plate 532. The first wiping block 531 can slide radially along the first mounting plate 532, and the first driving ring 533 can rotate circumferentially on the first mounting plate 532. The first driving ring 533 is also connected to the first wiping block 531; rotating the first driving ring 533 controls the first wiping block 531 to slide radially along the first mounting plate 532. The first mounting plate 532 is sleeved on a limiting plate 521, through which the limiting plate 521 can... The first mounting plate 532 is restricted from rotating relative to the bracket 52, so that the first mounting plate 532 can rotate synchronously with the bracket 52. The first mounting plate 532 can also slide up and down on the limiting plate 521, so that the first wiping block 531 keeps in contact with the first positioning reference end face 1, thereby realizing the rotation of the first wiping block 531 to wipe the first positioning reference end face 1. It can also realize the synchronous control of the first wiping block 531 to move along the radial direction of the first mounting plate 532 away from the axis of the first mounting plate 532 until it exits the first positioning reference end face 1, ensuring that the second positioning reference end face 2 can contact the first positioning reference end face 1 to achieve precise positioning.

[0074] Preferably, such as Figure 10 As shown, the first wiping block 531 is provided with a first wiping end face 5311 and a first driving groove 5312. The first wiping end face 5311 contacts the first positioning reference end face 1 and is used to wipe the first positioning reference end face 1. The first driving groove 5312 is a vortex driving groove.

[0075] Preferably, such as Figure 11 As shown, the first mounting plate 532 is provided with a first wiping block limiting slide groove 5321. The first wiping block limiting slide groove 5321 extends radially along the first mounting plate 532. The first wiping block 531 is installed in the first wiping block limiting slide groove 5321 and can slide radially along the first mounting plate 532 within the first wiping block limiting slide groove 5321.

[0076] Preferably, the first mounting plate 532 is further provided with a limiting slider 5322. The limiting slider 5322 is disposed in the mounting plate limiting groove 523 and can slide along the mounting plate limiting groove 523. The mounting plate limiting groove 523 can restrict the relative rotation of the first mounting plate 532 relative to the bracket 52, so that the first mounting plate 532 can rotate synchronously with the bracket 52. This enables the first wiping block 531 to rotate and wipe the first positioning reference end face 1, further improving the cleanliness of the first positioning reference end face 1 and thus improving the positioning accuracy of the positioning fixture.

[0077] Preferably, the first mounting plate 532 is further provided with a clearance hole 5323 and a second sliding protrusion 5324, the second sliding protrusion 5324 being located within the clearance hole 5323.

[0078] Preferably, such as Figure 12 As shown, the first drive ring 533 is provided with a first drive tooth 5331 and a first drive slide rail 5332. The first drive tooth 5331 is disposed on the outer circumference of the first drive ring 533; the first drive slide rail 5332 is disposed on the side of the first drive ring 533. The first drive slide rail 5332 is a scroll slide rail. The first drive slide rail 5332 can slide in the first drive groove 5312, thereby driving the first wiping block 531 to slide radially along the first mounting plate 532.

[0079] Preferably, such as Figure 13 As shown, the second wiping assembly 54 further includes a second mounting plate 542 and a second drive ring 543. The second wiping block 541 and the second drive ring 543 are both mounted on the second mounting plate 542. The second wiping block 541 can slide radially along the second mounting plate 542, and the second drive ring 543 can rotate circumferentially on the second mounting plate 542. The second mounting plate 542 is also connected to the second wiping block 541. Rotating the second mounting plate 542 can control the second wiping block 541 to slide radially along the second mounting plate 542. The second mounting plate 542 is fixedly mounted on the limiting plate 521, so that the second mounting plate 542 can rotate synchronously with the bracket 52, thereby realizing the rotation of the second wiping block 541 to wipe the second positioning reference end face 2, and synchronously controlling the second wiping block 541 to move radially away from the axis of the second mounting plate 542 until it exits the second positioning reference end face 2, ensuring that the second positioning reference end face 2 can contact the first positioning reference end face 1, and achieving precise positioning.

[0080] Preferably, such as Figure 14As shown, the second wiping block 541 is provided with a second wiping end face 5411 and a second driving slide groove 5412. The second wiping end face 5411 contacts the second positioning reference end face 2 and is used to wipe the second positioning reference end face 2. The second driving slide groove 5412 is a vortex slide groove.

[0081] Preferably, such as Figure 15 As shown, the second mounting plate 542 is provided with a second wiping block limiting slide groove 5421. The second wiping block limiting slide groove 5421 extends radially along the second mounting plate 542. The second wiping block 541 is installed in the second wiping block limiting slide groove 5421 and can slide radially along the second mounting plate 542 within the second wiping block limiting slide groove 5421.

[0082] Preferably, such as Figure 16 As shown, the second drive ring 543 is provided with a second drive tooth 5431 and a second drive slide rail 5432. The second drive tooth 5431 is disposed on the outer circumference of the second drive ring 543; the second drive slide rail 5432 is disposed on the side of the second drive ring 543. The second drive slide rail 5432 is a scroll type drive slide rail. The second drive slide rail 5432 can slide in the second drive groove 5412, thereby driving the second wiping block 541 to slide radially along the second mounting plate 542.

[0083] Preferably, such as Figure 17 As shown, one end of the linkage rod 55 is rotatably connected to the first mounting plate 532, and the other end passes through the clearance hole 5323, so that the linkage rod 55 can move with the first mounting plate 532 toward the first positioning reference end face 1.

[0084] Preferably, the linkage rod 55 is provided with a transmission tooth 551 and a second slide rail 552. The first drive tooth 5331 and the second drive tooth 5431 both mesh with the transmission tooth 551. The second slide rail 552 is spirally arranged. The second sliding protrusion 5324 is inserted into the second slide rail 552 and can slide along the second slide rail 552. This allows the linkage rod 55 to rotate simultaneously as it moves with the first mounting plate 532 toward the first positioning reference end face 1. This drives the first drive ring 533 and the second drive ring 543 to rotate synchronously. This controls the first wiping block 531 to move radially away from the first mounting plate 532 along its axis until it exits the first positioning reference end face 1. Simultaneously, it controls the block to move radially away from the second mounting plate 542 along its axis until it exits the second positioning reference end face 2. This ensures that the second positioning reference end face 2 can contact the first positioning reference end face 1, achieving precise positioning.

[0085] Preferably, the wiping mechanism 5 further includes a third spring 56, which is sleeved on the base 41. One end of the third spring 56 is fixedly connected to the base 41, and the other end is rotatably connected to the rotating sleeve 51. The third spring 56 is used to apply an elastic thrust to the rotating sleeve 51 at all times. When the downward pressure on the wiping mechanism 5 is removed, the elastic thrust of the third spring 56 pushes the rotating sleeve 51 to rotate and slide upward along the axis of the base 41, so that the rotating sleeve 51 returns to its initial position, and at the same time drives the second wiping assembly 54 to return to its initial state.

[0086] Preferably, the wiping mechanism 5 further includes a fourth spring 57, which is sleeved on the bracket 52. One end of the fourth spring 57 is connected to the first mounting plate 532, and the other end is connected to the second mounting plate 542. The fourth spring 57 is used to always apply an elastic thrust to the first mounting plate 532. When the downward pressure on the wiping mechanism 5 is removed and the second wiping assembly 54 returns to its initial state, the elastic thrust of the fourth spring 57 simultaneously pushes the first wiping assembly 53 to return to its initial state.

[0087] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A rapid positioning fixture, characterized in that, It includes a mounting plate, a tray, a positioning and clamping unit, and a cleaning unit, wherein the positioning and clamping unit is used to position the tray when it is installed onto the mounting plate; The positioning and mounting unit includes a first positioning reference end face, a second positioning reference end face, a rivet post, and a positioning and mounting mechanism. The first positioning reference end face is disposed on the positioning and mounting mechanism, and the positioning and mounting mechanism is disposed on the mounting plate. The second positioning reference end face and the rivet post are both disposed on the tray. The second positioning reference end face is disposed opposite to the first positioning reference end face, and the second positioning reference end face can contact the first positioning reference end face. The cleaning unit is installed on the positioning and clamping unit and is used to clean the first positioning reference end face and the second positioning reference end face; The cleaning unit includes a blowing mechanism and a wiping mechanism; The purging mechanism includes an air chamber, a first air hole, a second air hole, and a third air passage. The air chamber, the first air hole, and the second air hole are all disposed on the pull stud post. The first air hole and the second air hole are both connected to the air chamber. The first air hole is used to purge the first positioning reference end face to keep the first positioning reference end face clean. The second air hole is used to purge the second positioning reference end face to keep the second positioning reference end face clean. The wiping mechanism includes a rotating sleeve, a bracket, a first wiping assembly, and a second wiping assembly. The first wiping assembly includes a first wiping block, and the second wiping assembly includes a second wiping block. The rotating sleeve is fitted onto the base and can rotate along the axis of the base and slide up and down. The bracket is mounted on the rotating sleeve and can rotate synchronously with the rotating sleeve. The first wiping assembly is mounted on the bracket and can slide up and down along the axis of the bracket, while also rotating with the bracket. The first wiping block maintains contact with the first positioning reference end face and is used to wipe the first positioning reference end face. The second wiping assembly is mounted on the bracket and can also rotate with the bracket. The second wiping block maintains contact with the second positioning reference end face and is used to wipe the second positioning reference end face.

2. The rapid positioning fixture according to claim 1, characterized in that, The rivet post can be inserted into the positioning and clamping mechanism, which is used to position and lock the inserted rivet post.

3. The rapid positioning fixture according to claim 2, characterized in that, The positioning and mounting mechanism includes a base, a locking wedge, and a positioning bead.

4. The rapid positioning fixture according to claim 3, characterized in that, The base is provided with a first receiving cavity, a second receiving cavity and a third receiving cavity. The first receiving cavity is used to install a positioning bead, the second receiving cavity is used to install a locking wedge, and the third receiving cavity is used to insert a pull rivet post and position the pull rivet post.

5. A rapid positioning fixture according to claim 4, characterized in that, The first receiving cavity is connected to the second receiving cavity.

6. A rapid positioning fixture according to claim 5, characterized in that, The locking wedge can slide within the second receiving cavity to control the positioning bead to protrude or retract into the first receiving cavity.

7. A rapid positioning fixture according to claim 6, characterized in that, The pull pin has a locking groove, and the positioning bead can be inserted into the locking groove.

8. A rapid positioning fixture according to claim 7, characterized in that, The mounting plate is provided with a first air passage, which is connected to an external air passage.

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