CN211162397U - Triaxial follow-up positioning jig - Google Patents

Abstract

The utility model relates to a triaxial follow-up positioning jig, include: the X-axis clamp, the Y-axis clamp and the Z-axis clamp are arranged on the base and operate a common area; the Z-axis clamp is connected to the base through the first XY sliding mechanism; the Y-axis clamp is connected to the base in a sliding mode along the X-axis direction. The utility model discloses can provide the location for the article, and prevent that the article surface from being damaged.

Description

Triaxial follow-up positioning jig

Technical Field

The utility model relates to a positioning jig field especially relates to a triaxial follow-up positioning jig.

Background

When an object is welded, for example, a housing and a top cover of a power battery are welded, the welding track of the battery needs to be within a certain range above or below the focal plane of laser, and the track of a welding seam needs to be equivalent to the movement track of the focal point of the laser.

In the positioning process, a contact force exists between the battery and the jig in a general positioning mode, so that scratches or broken damages may occur on the surface of the battery, the quality such as appearance is affected, and further potential quality safety hazards of the battery may be caused.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide a three-axis follow-up positioning fixture for solving the problem of damage caused by the contact force between the battery and the fixture.

In order to solve the technical problem, the following technical scheme is adopted in the application:

a triaxial follow-up positioning jig comprises: the X-axis clamp, the Y-axis clamp and the Z-axis clamp are arranged on the base and operate a common area; the Z-axis clamp comprises a group of Z-axis clamping blocks which execute clamping action along a Z axis and a first XY sliding mechanism which is used for enabling the Z-axis clamping blocks to freely slide along the X-axis direction or along the Y-axis direction, and the Z-axis clamping blocks are connected to the base through the first XY sliding mechanism; the Y-axis clamp comprises a group of Y-axis clamping blocks which execute clamping actions along the Y axis, and the Y-axis clamping blocks are connected to the base in a sliding mode along the X axis direction.

In the three-axis follow-up positioning jig, the movement range of the Z-axis clamp or the clamping block thereof can freely slide along the X-axis direction and the Y-axis direction in addition to the clamping action in the Z-axis direction, the movement range of the Y-axis clamp or the clamping block thereof can freely slide along the X-axis direction in addition to the clamping action in the Y-axis direction, and the Z-axis clamp can carry out the clamping action in the X-axis direction. For convenience of description, the clamping blocks of the clamp are equivalent to the clamp; the Z-axis clamp is used for clamping an object and sending the object to a designated position in the Z-axis direction, then the Y-axis clamp is used for clamping the object, and the object is expected to be sent to the designated position in the Y-axis direction. Similarly, when the position of the object in the last direction is determined, the X-axis clamp clamps the object and the object is expected to be sent to the designated position in the X-axis direction, and because the Z-axis clamp and the Y-axis clamp can be driven by external force to move along the X-axis direction, the movement of the object in the X-axis direction is not hindered by the Z-axis clamp or the Y-axis clamp, so that the object can reach the designated position easily without being damaged by the Z-axis clamp or the Y-axis clamp.

In some embodiments, the Z-axis clamp block is further connected to the base through a reset unit, or the Y-axis clamp block is connected to the base through a reset unit.

In some embodiments, the return unit is a return spring or a return cylinder.

In some embodiments, the Z-axis clamp includes a pressing mechanism and a reference member, the pressing mechanism includes a pressing plate and a pressing cylinder for driving the pressing plate to reciprocate, and the pressing plate and the reference member constitute a set of the Z-axis clamp blocks.

In some embodiments, the pressing plate or the reference member is provided with an object groove for accommodating an object.

In some embodiments, the reference member is further connected to the base by a guide unit and a positioning spring axially parallel to the guide unit.

In some embodiments, the pressing device further comprises a top seat and a second XY sliding mechanism, the position of the top seat is fixed relative to the position of the base seat, the pressing mechanism and the reference part are arranged in a split mode, and the pressing plate is connected to the top seat through the second XY sliding mechanism.

In some embodiments, the first XY slide mechanism includes an X-axis slide device that slides in an X-axis direction and a Y-axis slide device that slides in a Y-axis direction.

In some embodiments, the X-axis slide or the Y-axis slide comprises any one of a rail-slide combination or a lead screw-slide combination.

In some embodiments, the first XY-slide mechanism includes a magnet disposed within the air-cushion rail, an air-cushion rail, and a magnetic slider suspended on an outer surface of the air-cushion rail.

Drawings

Fig. 1 is a schematic view of an overall structure of a three-axis follow-up positioning fixture according to some embodiments of the present application;

fig. 2 is a schematic view of an overall structure of a Z-axis fixture in a three-axis follow-up positioning fixture according to some embodiments of the present application;

FIG. 3 is a side view of a clamping portion of a Z-axis clamp of a three-axis follow-up positioning fixture according to some embodiments of the present application;

fig. 4 is a structural relationship diagram of a reference component and related components in a Z-axis fixture in a three-axis follow-up positioning fixture according to some embodiments of the present application;

fig. 5 is a structural relationship diagram of a pressing mechanism and related devices in a Z-axis fixture in a three-axis follow-up positioning fixture according to some embodiments of the present application;

fig. 6 is a schematic structural view of an X-axis clamp and a Y-axis clamp in a three-axis follow-up positioning fixture according to some embodiments of the present application.

Reference numerals:

1, a base;

2, a Z-axis clamp; 201, a pressure plate; 202, a reference piece; 203, a second XY sliding mechanism; 203a, a second X-axis slide; 203b, a second Y-axis slide; 203c, a second return spring; 204, a connecting plate; 205, a guide rod; 206, pressing the air cylinder; 207, object slots; 208, a jacking plate; 209, a first XY slide mechanism; 209a, a first Y-axis slide; 209b, a first X-axis slide; 210, a guide unit; 211, a positioning spring; 212, a first return spring; 213, a tank body;

3, a Y-axis clamp; 301, a Y-axis movable clamping block; 302, a Y-axis reference clamp block;

4, an X-axis clamp; 401, an X-axis movable clamping block; 402, an X-axis reference clamp block;

5, a top seat;

6, a power battery;

and 7, pressing the mechanism.

Detailed Description

Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar directional or positional expressions are used herein for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The directions of the "X axis", the "Y axis" and the "Z axis" are set relatively without absolute position relationship, but at least one axis direction is regarded as the gravity direction, and in space, the "Z axis" is regarded as the conservative force direction or the virtual conservative force direction. The position of the object in the three directions of the X axis, the Y axis and the Z axis is determined, so that the position of the object in the space can be uniquely determined.

Any clamp should have a set of clamping blocks, such as for a Z-axis clamp, where the two clamping blocks are the reference member and the pressure plate, respectively, where a clamp has one said "active degree of freedom" meaning that the clamping blocks of the clamp can move in one direction (or in the opposite direction) under the driving force of the clamp itself, and a clamp has one said "passive degree of freedom" meaning that the clamping blocks of the clamp will passively move in one direction (or in the opposite direction) with the action of the clamp or the object it holds under other forces. The Z-axis clamp has one active degree of freedom and two follow-up degrees of freedom, namely the clamping block of the Z-axis clamp can move along the Z axis under the action of the driving force of the Z-axis clamp, so that the Z-axis clamp is the active degree of freedom, and the clamping block of the Z-axis clamp can also move along the X axis under the pushing of the X-axis clamp and can move along the Y axis under the pushing of the Y-axis clamp, so that the follow-up degree of freedom is realized.

For convenience of description, the clamping blocks of the fixture are also equivalent to the fixture, except where specifically noted below, in other words, when referring to the movement of the fixture in the directions of multiple degrees of freedom, and particularly to the degree of freedom of its follow-up, the reference to the X/Y/Z axis "fixture" herein may refer to the X/Y/Z axis "fixture" as a whole, or to the clamping blocks of the X/Y/Z axis "fixture". When a conflict occurs, one skilled in the art can reasonably and judgedly select a scheme that does not conflict between the two.

In order to clearly show the technical scheme and the technical effects of the present application, the power battery is taken as a representative article in the following specific embodiments, but the technical scheme related to the present application is not only applicable to the power battery, and the technical scheme related to the present application can bring beneficial effects for positioning and preventing damage of general articles.

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings.

Referring to fig. 1, a three-axis follow-up positioning fixture includes: the device comprises a base 1, an X-axis clamp 4, a Y-axis clamp 3 and a Z-axis clamp 2 which are arranged on the base 1, wherein the X-axis clamp 4, the Y-axis clamp 3 and the Z-axis clamp 2 operate a common area; the X-axis clamp 2 is connected to the base 1 through the first XY sliding mechanism 209, and the first XY sliding mechanism 209 is used for enabling the Z-axis clamp 2 to slide along the X-axis direction or slide along the Y-axis direction (see FIG. 2); the Y-axis clamp 3 is connected to the base 1 in a sliding manner along the X-axis direction.

In order to determine the position of the power battery 6, particularly the position of a welding part between a shell and a top cover of the power battery 6, three clamps, namely an X-axis clamp 4, a Y-axis clamp 3 and a Z-axis clamp 2, are adopted in the method, wherein the clamping direction of the X-axis clamp 4 is along the X-axis direction, the clamping direction of the Y-axis clamp 3 is along the Y-axis direction, and the clamping direction of the Z-axis clamp 2 is along the Z-axis direction; the clamping section of the X-axis clamp 4, the Y-axis clamp 3, or the Z-axis clamp 2 is an operation section, and the three clamps operate a common operation section, so that the relative positions of the X-axis clamp 4, the Y-axis clamp 3, or the Z-axis clamp 2 can be substantially determined. As shown in fig. 1, the clamping directions of the X-axis clamp 4, the Y-axis clamp 3 and the Z-axis clamp 2 are perpendicular to each other, and the X-axis clamp 4, the Y-axis clamp 3 and the Z-axis clamp 2 operate together to a rectangular space, the power battery 6 is placed in the space, and the clamps clamp and position the power battery 6 in sequence, so as to determine the position of the power battery 6.

Meanwhile, in order to prevent the surface of the power battery 6 from being damaged in the positioning process, please refer to fig. 2 and 3, the Z-axis clamp 2 has an active degree of freedom, in which the Z-axis clamp 2 can actively determine the position of the power battery 6, and also has two follow-up degrees of freedom provided by the first XY sliding mechanism 209 along the X-axis direction and the Y-axis direction, respectively; the Y-axis clamp 3 has an active degree of freedom and a follow-up degree of freedom in the X-axis direction; the X-axis clamp 4 has one active degree of freedom.

For convenience of description, the power battery 6 is regarded as a rectangular parallelepiped, and referring to fig. 2, the Z-axis clamp 2 first clamps two end faces of the power battery 6 in the Z-axis direction and fixes the Z-axis position of the power battery 6. Then the Y-axis clamp 3 is started, two end faces of the power battery 6 in the Y-axis direction are clamped, the power battery 6 is pushed to move towards the Y-axis direction until the power battery 6 reaches a set position in the Y-axis direction, and the power battery 6 can drive the Z-axis clamp 2 to move along the Y-axis direction due to the fact that the Z-axis clamp 2 has the follow-up freedom degree in the Y-axis direction when the Y-axis clamp 3 pushes the power battery 6, the power battery 6 can move along the Y-axis direction without hindrance, and therefore the situation that the power battery 6 is damaged due to the pushing force of the Y-axis clamp 3 is avoided. And finally, the X-axis clamp 4 is started, the X-axis clamp 4 clamps two end faces of the power battery 6 in the X-axis direction and pushes the power battery 6 to move to a set position in the X-axis direction, and the power battery 6 can be driven to move in the X-axis direction by the power battery 6 because the Z-axis clamp 2 and the Y-axis clamp 3 both have the follow-up freedom degree in the X-axis direction, so that the power battery 6 can move in the X-axis direction without hindrance, and the power battery 6 is prevented from being damaged or broken by the thrust of the X-axis clamp 4.

Therefore, when the Z-axis clamp 2 uniquely determines the Z-axis position of the power battery 6, the Y-axis clamp 3 uniquely determines the Y-axis position thereof, and the X-axis clamp 4 determines the position in the last direction, thereby determining the position of the power battery 6 in space. When the position of the power battery 6 in a certain direction is determined, the restraining means of the power battery 6 in the other direction has a follow-up degree of freedom in that direction, thereby preventing the power battery 6 from being damaged.

Alternatively, referring to fig. 4, the first XY slide mechanism 209 includes a first X-axis slide 209a that slides in the X-axis direction and a first Y-axis slide 209b that slides in the Y-axis direction. When the Z-axis jig 2 slides on the first XY slide mechanism 209, it may first slide along the first X-axis slide 209a, then stop at any position on the first X-axis slide 209a, and then slide along the first Y-axis slide 209b, or slide along the first Y-axis slide 209b first and then slide along the first X-axis slide 209 a. Thus, the Z-axis jig 2 can slide on the first XY slide mechanism 209 and stay at any one of the exact positions on the first XY slide mechanism 209.

Specifically, in one embodiment, the first X-axis slide 209a and the first Y-axis slide 209b are both a rail-and-slider combination, e.g., the rails of the first X-axis slide 209a are disposed on the base, the first Y-axis slide 209b is slidably coupled to the rails of the first X-axis slide 209a as a slider of the first X-axis slide 209a, while the rails are disposed on the first Y-axis slide 209b, and the Z-axis clamp 2 is disposed as a slider on the rails of the first Y-axis slide 209 b.

In another embodiment, the first X-axis slide 209a and the first Y-axis slide 209b are both a lead screw slider combination, e.g., the lead screw of the first X-axis slide 209a is disposed on the base, the first Y-axis slide 209b is slidably coupled as a slider of the first X-axis slide 209a to the lead screw of the first X-axis slide 209a, while the first Y-axis slide 209b is disposed with the lead screw, and the Z-axis clamp 2 is disposed as a slider on the lead screw of the first Y-axis slide 209 b.

Optionally, in one embodiment, the first XY-slide mechanism 209 includes a magnet disposed within the air-ride rail, an air-ride rail, and a magnetic slider suspended on an outer surface of the air-ride rail. Wherein, the air cushion guide rail provides repulsion force to the magnetic slider, the magnet provides attraction force to the magnetic slider, the two forces and the third force gravity reach the force balance, thereby stably sliding on the same horizontal plane, playing the role that the Z-axis clamp 2 slides on the first XY sliding mechanism 209 and can stay at any position on the first XY sliding mechanism 209 at any time. According to the superconductor quantum locking effect, it is expected that, after the normal temperature superconducting technology is mature, the first XY sliding mechanism 209 includes a magnetic adjustable platform and a superconductor slider suspended on the platform, wherein an electromagnetic array is disposed in the magnetic adjustable platform, and the magnetic field distribution on the platform can be changed by changing electrical parameters in the electromagnetic array, such as voltage, current, inductance, etc., so that the superconductor slider can freely slide on the set track, and at the same time, even if no external force is applied, the magnetic field at a certain position on the platform is limited to be much larger than or smaller than the magnetic field around the superconductor slider, thereby realizing the hovering of the superconductor slider. When the superconductor sliding block is positioned below the platform, the magnetic field is far larger than the surrounding magnetic field, and when the superconductor sliding block is positioned above the platform, the magnetic field is far smaller than the surrounding magnetic field.

In one embodiment, referring to fig. 2, the Z-axis clamp 2 includes a pressing mechanism 7 and a reference member 202, and the pressing mechanism 7 and the reference member 202 cooperate to realize a clamping action. Wherein the Z-axis clamp 2 is arranged along the gravity direction, and the reference piece 202 is positioned below the pressing mechanism 7; the pressing mechanism 7 includes a driving unit, a pressing cylinder 206, and a pressing plate 201, wherein the pressing cylinder 206 includes a fixed end and an output end, the fixed end is connected to the base 1 and can not move relative to the base 1 in the Z-axis direction, and the output end is connected to the pressing plate 201. The pressing plate 201 is driven by the pressing cylinder 206 to reciprocate up and down, and the pressing plate 201 is close to or away from the reference member 202 to clamp the power battery 6.

Specifically, in one embodiment, referring to fig. 4, the reference member 202 is provided with an object slot 207 for accommodating the power battery 6, since the Y-axis clamp 3 and the X-axis clamp 4 are not yet operated when the Z-axis clamp 2 is operated, and the power battery 6 is a flat cuboid object, and the center of gravity is too high and easily falls down when the power battery is independently accommodated on the platform, the object slot 207 needs to be provided to stabilize the power battery 6, the object slot 207 is provided with a blocking portion for preventing the power battery 6 from falling down at least in the long side direction of the cross section of the power battery, and more preferably, the object slot 207 is a recessed slot body 213 with four walls.

More specifically, in an embodiment, referring to fig. 4, the reference member 202 is further connected to the base 1 through a guide unit 210 and a positioning spring 211, the positioning spring 211 enables the power battery 6 to move within an elastic range of the spring when the pressing mechanism 7 clamps the power battery 6, so as not to damage the battery by pressing the pressing mechanism 7 on the power battery 6 excessively due to a deviation of the size of the power battery 6, and enables an inclination angle of the reference member 202 to a horizontal plane to be adjustable, thereby ensuring that a welding position above the power battery 6 is in a correct position, and the guide unit 210 prevents the pressing mechanism 7 from pressing down to cause the spring to be twisted sideways. Referring to fig. 3 and 5, the pressing plate 201 is provided with a groove 213, and the groove 213 is matched with the top cover of the power battery 6 in shape or slightly larger than the top cover of the power battery 6, so that on one hand, a better clamping effect can be achieved, and on the other hand, the position of the top cover of the power battery 6 can be uniquely determined. Since the top cover of the power battery 6 is substantially bonded to the housing before welding, such as by glue or laser spot welding, when the position of the top cover of the power battery 6 is determined, the position of the housing of the power battery 6 is determined accordingly, and thus the position of the weld is determined. The first XY slide mechanism 209 and the collective body of the guide unit 210 and the positioning spring 211 are connected by the lift plate 208.

In one embodiment, the three-axis follow-up positioning fixture further comprises a top seat 5 and a second XY sliding mechanism 203, the positions of the top seat 5 and the second XY sliding mechanism are fixed relative to the base 1, the pressing mechanism 7 is arranged separately from the reference member 202, and the pressing mechanism 7 is arranged on the top seat 5. The whole of the pressing mechanism 7 or the pressing plate 201 in the pressing mechanism 7 is connected to the top base 5 through the second XY slide mechanism 203. In order to reasonably utilize space and avoid the position conflict of the Z-axis clamp 2 with the Y-axis clamp 3 and the X-axis clamp 4, the pressing mechanism 7 and the reference part 202 are arranged separately, and the pressing mechanism 7 is connected to a top seat 5 which is fixed relative to the position of the base 1.

A second XY slide mechanism 203 as an XY slide mechanism having a function similar to that of the first XY slide mechanism 209. In one embodiment, the structure of the first XY slide mechanism 209 as in the above-described one embodiment includes a second X-axis slide device 203a and a second Y-axis slide device 203b, by which the synchronous follow-up between the platen 201 and the reference member 202 is achieved.

Specifically, in one embodiment, referring to fig. 2, the down-pressure cylinder 206 is fixedly connected to the top base 5, and the second XY sliding mechanism 203 is connected to the down-pressure cylinder 206 through the connecting plate 204. The pressing mechanism 7 further comprises a guide rod 205 arranged around the pressing cylinder 206, and the guide rod 205 is fixedly connected to the connecting plate 204 and the pressing cylinder 206 and used for stabilizing the pressing direction of the pressing cylinder 206 along the Z-axis direction and preventing the pressing cylinder 206 from deviating.

In one embodiment, both the first XY slide mechanism 209 and the second XY slide mechanism 203 comprise a reset unit that directly or indirectly connects the base 1 and the Z-axis clamp 2 or the top 5 and the Z-axis clamp 2 to determine the initial position of the Z-axis clamp 2 in the two follow-up degree of freedom directions (X-axis and Y-axis directions).

Alternatively, the reset unit may be a reset spring or a reset cylinder.

Specifically, in one embodiment, the first XY slide 209 includes a first Y-axis slide 209a and a first X-axis slide 209b, wherein the first Y-axis slide 209a is connected to the base 1 via a return spring, and the first X-axis slide 209b is also connected to the base 1 via another return spring.

Specifically, in the relevant connecting members in the first XY slide mechanism 209, the reference member 202 is connected to the base 1 through a returning unit such as a first return spring 212, and the pressing mechanism 7 is connected to the top base 5 through a returning unit such as a second return spring 203 c. And when the first return spring 212 and the second return spring 203c are in the initial state, i.e., the free state, the reference member 202 is directly opposite to the pressing plate 201 of the pressing mechanism 7.

In one embodiment, referring to fig. 6, the Y-axis clamp 3 includes a Y-axis movable clamp block 301 and a Y-axis reference clamp block 302, wherein the Y-axis reference clamp block 302 as a positioning reference is not connected to the driving unit and cannot move along the Y-axis direction, so that when the Y-axis movable clamp block 301 pushes the power battery 6 to the Y-axis reference clamp block 302, the power battery 6 touches the Y-axis reference clamp block 302 to reach a set positioning point. Similarly, the X-axis clamp 4 includes an X-axis movable clamping block 401 and an X-axis reference clamping block 402, wherein the X-axis reference clamping block 402 serving as a positioning reference is fixedly connected to the base 1, so that when the X-axis movable clamping block 401 pushes the power battery 6 to the X-axis reference clamping block 402, the power battery 6 touches the X-axis reference clamping block 402 to reach a set positioning point.

Alternatively, the Y-axis reference clamping block 302 is slidably connected to the base 1, and the Y-axis reference clamping block 302 is connected to the base 1 through a fixing rod with adjustable length, so that the specific position of the Y-axis reference clamping block 302 as a reference can be adjusted, and the positioning position of the power battery 6 in the Y-axis direction can also be adjusted. Similarly, the X-axis reference clamping block 402 is slidably connected to the base 1, and the X-axis reference clamping block 402 is connected to the base 1 through a fixing rod with adjustable length, so that the specific position of the X-axis reference clamping block 402 as a reference can be adjusted, and the positioning position of the power battery 6 in the X-axis direction can also be adjusted.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a triaxial follow-up positioning tool which characterized in that includes: the X-axis clamp, the Y-axis clamp and the Z-axis clamp are arranged on the base and operate a common area;

the Z-axis clamp comprises a group of Z-axis clamping blocks which execute clamping action along a Z axis and a first XY sliding mechanism which is used for enabling the Z-axis clamping blocks to freely slide along the X-axis direction or along the Y-axis direction, and the Z-axis clamping blocks are connected to the base through the first XY sliding mechanism;

the Y-axis clamp comprises a group of Y-axis clamping blocks which execute clamping actions along the Y axis, and the Y-axis clamping blocks are connected to the base in a sliding mode along the X axis direction.

2. The three-axis follow-up positioning jig according to claim 1, characterized in that: the Z-axis clamping block is further connected with the base through a reset unit, or the Y-axis clamping block is connected with the base through a reset unit.

3. The three-axis follow-up positioning jig according to claim 2, characterized in that: the reset unit is a reset spring or a reset cylinder.

4. The three-axis follow-up positioning jig according to claim 1, characterized in that: the Z-axis clamp comprises a pressing mechanism and a reference piece, the pressing mechanism comprises a pressing plate and a pressing cylinder used for driving the pressing plate to reciprocate, and the pressing plate and the reference piece form a group of Z-axis clamping blocks.

5. The three-axis follow-up positioning jig according to claim 4, wherein: the pressing plate or the reference piece is provided with an object groove for accommodating objects.

6. The three-axis follow-up positioning jig according to claim 4, wherein: the reference piece is also connected with the base through a guide unit and a positioning spring axially parallel to the guide unit.

7. The three-axis follow-up positioning jig according to claim 4, wherein: the pressing plate is connected to the top seat through the second XY sliding mechanism.

8. The three-axis follow-up positioning jig according to claim 1, characterized in that: the first XY sliding mechanism includes an X-axis sliding device that slides in the X-axis direction and a Y-axis sliding device that slides in the Y-axis direction.

9. The three-axis follow-up positioning jig according to claim 8, wherein: the X-axis sliding device or the Y-axis sliding device comprises any one of a guide rail sliding block combination or a screw rod sliding block combination.

10. The three-axis follow-up positioning jig according to claim 1, characterized in that: the first XY sliding mechanism comprises a magnet, an air cushion guide rail and a magnetic slider, wherein the magnet is arranged in the air cushion guide rail, and the magnetic slider is suspended on the outer surface of the air cushion guide rail.

Images