CN221270168U - Welding fixture for massage chair back frame - Google Patents

Abstract

The application provides a welding fixture for a massage chair back frame, and relates to the technical field of welding fixtures. This welding frock of massage chair back frame includes: the welding support is used for supporting two opposite massage chair back frames at the bottom of the massage chair back frames, the positioning assembly comprises a telescopic piece, a sliding rod and a rotating rod, the rotating rod is rotationally arranged on the welding support, the sliding rod is in driving connection with the telescopic piece and is rotationally connected with the rotating rod, the positioning assembly comprises two groups, the rotating rod in the two groups of positioning assemblies respectively supports against two inner sides of the massage chair back frames, the clamping assembly comprises two groups, and the two groups of clamping assemblies are respectively used for supporting against two outer sides of the massage chair back frames. The welding fixture of the massage chair back frame can directly ensure the distance between the inner sides of the two guide rails by controlling the distance between the end parts of the two rotating rods, the distance between the inner sides of the guide rails is convenient to adjust, and the welding fixture can be accurately controlled, and has a simple structure and is practical.

Description

Welding fixture for massage chair back frame

Technical Field

The application relates to the technical field of welding tools, in particular to a welding tool for a massage chair back frame.

Background

The back frame of the massage chair is a supporting structure arranged in the back of the massage chair, two guide rails which are parallel to each other are arranged on the inner side of the back frame of the massage chair, and a massage machine core is arranged between the two guide rails and walks along the guide rails so as to massage the back of a user. Therefore, only if the inner side spacing between the two guide rails on the massage chair back frame keeps stable size, the normal running of the massage chair movement can be ensured.

The guide rail is fixedly connected by a plurality of metal structural members through welding, and is provided with a plurality of arc-shaped sections and a plurality of straight-line sections. At present, a plurality of clamping devices are arranged on the inner side of a back frame to press the back frame on a welding plate so as to fasten the back frame, so that the back frame is welded. However, as the inner side of the guide rail is provided with the bending structure, the clamping device clamps the guide rail from the inner side, the positioning precision is lower, and the inner side distance between the two guide rails is likely to be insufficient.

Disclosure of utility model

The application aims to overcome the defects in the prior art and provide a welding tool for a massage chair back frame, which can improve the machining precision of guide rails of the massage chair back frame and enable the inner side distance between two guide rails to meet the machining requirement.

In order to achieve the above purpose, the technical scheme adopted by the embodiment of the application is as follows:

In one aspect of the embodiments of the present application, a welding fixture for a massage chair back frame is provided, including: the welding support is used for supporting two opposite massage chair back frames at the bottom of the massage chair back frames, the positioning assembly comprises a telescopic piece, a sliding rod and a rotating rod, the rotating rod is rotationally arranged on the welding support, the sliding rod is in driving connection with the telescopic piece and is rotationally connected with the rotating rod, the positioning assembly comprises two groups, the rotating rod in the two groups of positioning assemblies respectively supports against two inner sides of the massage chair back frames, the clamping assembly comprises two groups, and the two groups of clamping assemblies are respectively used for supporting against two outer sides of the massage chair back frames.

Optionally, the tip of rotary rod is equipped with the carbon-point, and the rotary rod supports with the inboard of massage chair back frame through the carbon-point.

Optionally, the welding support includes the welding bottom plate and sets up the riser on the welding bottom plate, and the both sides of riser are equipped with rotary groove and rotatory hole respectively, and slide bar and rotary rod are located the rotary groove, and the middle part rotation of rotary rod sets up in the rotatory hole, and the tip of rotary rod is equipped with the fixed orifices, and the slide bar rotates the setting in the fixed orifices.

Optionally, riser and rotary rod all include a plurality ofly, and a plurality of risers set up in parallel, and a plurality of rotary rods rotate respectively and set up on a plurality of risers, and the sliding rod passes a plurality of risers and rotates with a plurality of rotary rods simultaneously and be connected.

Optionally, the two rotating grooves on the vertical plate are distributed in a mirror symmetry manner, the two rotating holes on the vertical plate are distributed in a mirror symmetry manner, and the two groups of positioning components are distributed symmetrically relative to the vertical plate.

Optionally, a limiting block is arranged on the sliding rod, and the telescopic piece enables the sliding rod to have a first limit position and a second limit position through telescopic action; when the sliding rod is positioned at the first limit position, the limiting block and the welding bracket are arranged at intervals, and the end part of the rotating rod is separated from the inner side of the massage chair back frame; when the sliding rod is in the second limit position, the limiting block is propped against the welding bracket, and the end part of the rotating rod is propped against the inner side of the massage chair back frame.

Optionally, when the sliding rod is in the second limit position, the rotating rod is perpendicular to the inner side of the massage chair back frame.

Optionally, the tip of rotary rod is equipped with the circular arc groove, and the circular arc groove runs through the upper surface and the lower surface of rotary rod, and the carbon-point inserts in the circular arc groove and with circular arc groove interference fit, the carbon-point part exposes in the circular arc groove.

Optionally, a plurality of fixing blocks are arranged on the welding bottom plate and used for supporting the massage chair back frame along the extending direction of the massage chair back frame.

Optionally, the clamping assembly comprises a plurality of clamping cylinders for simultaneously abutting against the outer side of the massage chair back frame along the extending direction of the massage chair back frame.

The beneficial effects of the application include:

The application provides a welding fixture for a massage chair back frame, which comprises the following components: the welding support is used for supporting two opposite massage chair back frames at the bottom of the massage chair back frames, the positioning assembly comprises a telescopic piece, a sliding rod and a rotating rod, the rotating rod is rotationally arranged on the welding support, the sliding rod is in driving connection with the telescopic piece and is rotationally connected with the rotating rod, the positioning assembly comprises two groups, the rotating rod in the two groups of positioning assemblies respectively supports against two inner sides of the massage chair back frames, the clamping assembly comprises two groups, and the two groups of clamping assemblies are respectively used for supporting against two outer sides of the massage chair back frames. The welding fixture of the massage chair back frame is positioned at the inner side of the massage chair back frame (namely the bottom of the guide rail) in a rotating mode through the rotating rod, and then the massage chair back frame is clamped at the outer side of the massage chair back frame by matching with the clamping component. Through the distance between two rotary rod tip of control, can directly guarantee the interval between two guide rails inboardly, the inboard interval of guide rail is convenient to be adjusted, can be accurate accuse, through improving the positioning accuracy of massage back of the chair frame welding frock, and then improve the machining precision of guide rail on the massage back of the chair frame, makes the inboard interval between two guide rails satisfy the processing requirement, simple structure and practicality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a structure of a welding tool for a massage chair back frame in an open state according to an embodiment of the present application;

Fig. 2 is a second schematic structural view of a welding tool for a back frame of a massage chair in an open state according to an embodiment of the present application;

fig. 3 is a cross-sectional view of a welding tool for a massage chair back frame in an open state according to an embodiment of the present application;

Fig. 4 is a schematic structural view of a welding tool for a massage chair back frame in a tightened state according to an embodiment of the present application;

Fig. 5 is a schematic view of a partial structure of a welding tool for a massage chair back frame in an open state according to an embodiment of the present application.

Icon: 100-a welding tool of a massage chair back frame; 110-welding a bracket; 111-welding a bottom plate; 112-a riser; 1121-a rotating tub; 1122-a rotation hole; 113-a fixed block; 120-positioning assembly; 121-telescoping member; 122-sliding bar; 1221-stopper; 123-rotating the rod; 1231-arc grooves; 1232-fixing holes; 124-carbon rod; 130-a clamping assembly; 131-clamping cylinder; 200-a massage chair back frame; 210-a support frame; 220-connecting frames; 230-guide rail.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. It should be noted that, under the condition of no conflict, the features of the embodiments of the present application may be combined with each other, and the combined embodiments still fall within the protection scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In an aspect of the embodiment of the present application, referring to fig. 1 to 3, there is provided a welding fixture 100 for a massage chair back frame, including: the welding bracket 110 and the locating component 120 and the clamping component 130 that set up on the welding bracket 110, the welding bracket 110 is used for supporting two massage armchair back frames 200 that are opposite in the bottom of massage armchair back frame 200, the locating component 120 includes extensible member 121, slide bar 122 and rotary rod 123, rotary rod 123 rotates and sets up on the welding bracket 110, slide bar 122 is connected with extensible member 121 drive and is connected with rotary rod 123 rotation, locating component 120 includes two sets of, rotary rod 123 in two sets of locating component 120 supports with two inboard relatively of massage armchair back frame 200 respectively and holds, clamping component 130 includes two sets of, two sets of clamping component 130 are used for supporting with two outside relatively of massage armchair back frame 200 respectively.

It should be noted that, the massage chair back frame 200 includes two parallel support frames 210 and a plurality of connection frames 220 connecting the two support frames 210, the two support frames 210 are respectively provided with a guide rail 230 at a side close to each other, and the extending direction of the guide rail 230 is the same as the extending direction of the support frames 210. The side of the two support frames 210 that are close to each other (i.e., the bottom of the guide rail 230) is the inner side of the massage armchair frame 200, and the side of the two support frames 210 that are far from each other is the outer side of the massage armchair frame 200. The massage armchair back frame 200 has two opposite inner sides and two outer sides opposite to the two inner sides respectively, and the bottom of the massage armchair back frame 200 is perpendicular to the inner sides and the outer sides of the massage armchair back frame 200.

During welding, the massage armchair back frame 200 is placed on the welding bracket 110, and the welding bracket 110 supports the massage armchair back frame 200 at the bottom of the massage armchair back frame 200. The two groups of positioning components 120 respectively support against the two opposite inner sides of the massage chair back frame 200 to position the inner sides of the massage chair back frame 200; the two clamping assemblies 130 respectively support against two opposite outer sides of the massage armchair back frame 200, so that the massage armchair back frame 200 is pressed against the positioning assembly 120.

The positioning assembly 120 includes a telescopic member 121 (such as a telescopic cylinder), a sliding rod 122 and a rotating rod 123, wherein the telescopic member 121 is reciprocally telescopic, and drives the sliding rod 122 to reciprocally slide, and the rotating rod 123 is driven to rotate along two opposite directions in the process of reciprocally sliding the sliding rod 122, so that the rotation plane of the rotating rod 123 is perpendicular to the inner side of the massage chair back frame 200. When the rotating rod 123 rotates outwards, the end part of the rotating rod 123 gradually approaches the inner side of the massage armchair back frame 200 and finally abuts against the inner side of the massage armchair back frame 200, so that positioning is realized; when the rotating rod 123 rotates inward, the end of the rotating rod 123 gradually gets away from the inner side of the massage armchair back frame 200, releasing the restriction of the massage armchair back frame 200. It can be understood that referring to fig. 2 and 4, the moving directions of the telescopic members 121 and the sliding rods 122 in the two sets of positioning assemblies 120 are the same, and the rotating directions of the rotating rods 123 are opposite, so that the ends of the two rotating rods 123 show a tightening or opening trend through synchronous expansion and contraction of the two telescopic members 121.

The welding fixture 100 for the back frame of the massage chair is positioned on the inner side of the back frame 200 (i.e. the bottom of the guide rail 230) in a rotating manner by the rotating rod 123, and then is matched with the clamping assembly 130 to clamp the back frame 200 on the outer side of the back frame 200. Through the distance between two rotary rod 123 tip of control, can directly guarantee the interval between two guide rail 230 inboards, the inboard interval of guide rail 230 is convenient to be adjusted, can be accurate accuse, through improving the positioning accuracy of massage chair back frame 200 welding frock, and then improve the machining precision of guide rail 230 on the massage chair back frame 200, makes the inboard interval between two guide rails 230 satisfy the processing requirement, simple structure and practicality.

Optionally, in an implementation manner of the embodiment of the present application, referring to fig. 3, a carbon rod 124 is disposed at an end of the rotating rod 123, and the rotating rod 123 abuts against an inner side of the massage chair back frame 200 through the carbon rod 124.

The carbon rod 124 has good frictional properties, and does not damage the surface of the massage chair back frame 200 during contact and separation with the inner side of the massage chair back frame 200. Moreover, the carbon rod 124 can be detached and replaced, which is convenient for maintaining the welding fixture 100 of the massage chair back frame.

Optionally, in an implementation manner of the embodiment of the present application, referring to fig. 5, an arc groove 1231 is formed at an end of the rotating rod 123, the arc groove 1231 penetrates through the upper surface and the lower surface of the rotating rod 123, and the carbon rod 124 is inserted into the arc groove 1231 and is in interference fit with the arc groove 1231, and part of the carbon rod 124 is exposed out of the arc groove 1231.

The carbon rod 124 is inserted from the end of the circular arc groove 1231 (above the rotating rod 123) and is interference fit with the inner wall of the circular arc groove 1231 to achieve the limit. The side surface of the carbon rod 124 is exposed through the opening of the circular arc groove 1231, and the exposed portion of the carbon rod 124 is used to abut against the inner side of the massage chair back frame 200. The arrangement of the arc grooves 1231 makes the installation and the disassembly of the carbon rod 124 more convenient, and is beneficial to the replacement and the maintenance of the carbon rod 124.

Alternatively, in one implementation manner of the embodiment of the present application, referring to fig. 1 and 5, the welding bracket 110 includes a welding bottom plate 111 and a vertical plate 112 disposed on the welding bottom plate 111, two sides of the vertical plate 112 are respectively provided with a rotation slot 1121 and a rotation hole 1122, the sliding rod 122 and the rotation rod 123 are disposed in the rotation slot 1121, the middle part of the rotation rod 123 is rotatably disposed in the rotation hole 1122, the end part of the rotation rod 123 is provided with a fixing hole 1232, and the sliding rod 122 is rotatably disposed in the fixing hole 1232.

The welding bottom plate 111 is horizontally disposed, and the vertical plate 112 is vertically disposed on the welding bottom plate 111. The vertical plate 112 is provided with a rotation groove 1121 on each of opposite sides, and the rotation groove 1121 is provided to penetrate the vertical plate 112 in the horizontal direction. A rotation hole 1122 is provided in the rotation groove 1121, and the middle part of the rotation lever 123 is rotatably installed in the rotation hole 1122 to be rotatably coupled with the rotation groove 1121. One end of the rotating rod 123 is provided with a fixing hole 1232, and the sliding rod 122 is rotatably arranged in the fixing hole 1232 to be rotatably connected with the rotating rod 123, and the other end of the rotating rod 123 opposite to the rotating rod is used for propping against the inner side of the massage chair back frame 200.

Alternatively, in one implementation manner of the embodiment of the present application, each of the vertical plates 112 and the rotating rods 123 includes a plurality of vertical plates 112, the plurality of vertical plates 112 are disposed in parallel, the plurality of rotating rods 123 are respectively rotatably disposed on the plurality of vertical plates 112, and the sliding rod 122 passes through the plurality of vertical plates 112 and is simultaneously rotatably connected to the plurality of rotating rods 123.

The positioning assembly 120 comprises a telescopic piece 121, a sliding rod 122 and at least two rotating rods 123, wherein the telescopic piece 121 and the sliding rod 122 simultaneously control the rotation of the at least two rotating rods 123, so that the at least two rotating rods 123 can simultaneously support against the inner side of one side of the massage chair back frame 200; also, at least two rotating rods 123 of the other set of positioning components 120 can be abutted against the other inner side of the massage chair back frame 200, so as to achieve the requirement of precisely controlling the overall size and the inner side spacing of the guide rail 230.

Alternatively, in one implementation manner of the embodiment of the present application, referring to fig. 2 and 3, the two rotation slots 1121 on the vertical plate 112 are distributed in a mirror symmetry manner, the two rotation holes 1122 on the vertical plate 112 are distributed in a mirror symmetry manner, and the two sets of positioning components 120 are distributed symmetrically with respect to the vertical plate 112.

The two rotating grooves 1121 and the two rotating holes 1122 on the vertical plate 112 are respectively distributed in mirror symmetry with respect to the central line of the vertical plate 112, wherein the central line of the vertical plate 112 is perpendicular to the welding bottom plate 111, and the distances between the two inner sides opposite to the massage chair back frame 200 are equal. The two sets of positioning assemblies 120 are symmetrically distributed relative to the central line of the vertical plate 112, so that the two sets of positioning assemblies 120 have the same structural size, and the two sets of positioning assemblies 120 have the same positioning effect on the two inner sides of the massage chair back frame 200.

Optionally, in an implementation manner of the embodiment of the present application, referring to fig. 1 and 5, a plurality of fixing blocks 113 are disposed on the welding base plate 111, and the plurality of fixing blocks 113 are used for supporting the massage armchair back frame 200 along the extending direction of the massage armchair back frame 200.

The fixing blocks 113 protrude from the surface of the welding base plate 111 to support the massage armchair back frame 200, so as to prevent the massage armchair back frame 200 having an arc section from interfering with the bracket of the welding base plate 111. The extending direction of the massage armchair back frame 200 means the extending direction of the supporting frame 210 on the massage armchair back frame 200. The at least two fixing blocks 113 support the massage armchair back frame 200 at multiple points along the extension direction of the massage armchair back frame 200 to improve the stability of the support.

Optionally, in an implementation manner of the embodiment of the present application, referring to fig. 2 and 4, a limiting block 1221 is disposed on the sliding rod 122, and the telescopic member 121 stretches to enable the sliding rod 122 to have a first limit position and a second limit position. When the sliding rod 122 is at the first limit position, the limiting block 1221 is arranged at intervals with the welding bracket 110, and the end part of the rotating rod 123 is separated from the inner side of the massage chair back frame 200; at this time, the opposite ends of the two rotating rods 123 are in a tightening trend, and the massage chair back frame 200 can be mounted. When the sliding rod 122 is at the second limit position, the limiting block 1221 abuts against the welding bracket 110, and the end of the rotating rod 123 abuts against the inner side of the massage chair back frame 200; at this time, the opposite ends of the two rotating rods 123 are opened, and the inner side of the massage chair back frame 200 is restrained.

The setting of the limiting block 1221 can limit the sliding rod 122, so as to prevent the sliding rod 122 from crossing the second limit position to cause the rotating rod 123 to be unable to abut against the inner side of the massage armchair back frame 200 or damage the inner side of the massage armchair back frame 200 due to overlarge pressure.

Alternatively, in one possible manner of the embodiment of the present application, when the sliding rod 122 is in the second limit position, the rotating rod 123 is perpendicular to the inner side of the massage armchair frame 200, so that only the pressure perpendicular to the inner side of the massage armchair frame 200 is applied to the massage armchair frame 200, and the massage armchair frame 200 can be compressed by cooperating with the compression assembly without sliding the massage armchair frame 200.

Optionally, in one possible manner of the embodiment of the present application, the clamping assembly 130 includes a plurality of clamping cylinders 131, and the plurality of clamping cylinders 131 are used to simultaneously abut against the outer side of the massage armchair frame 200 along the extension direction of the massage armchair frame 200, so as to more precisely control the overall size of the guide rail 230.

Preferably, the number of clamping cylinders 131 in the set of clamping assemblies 130 is the same as the number of rotating rods 123 in the set of positioning assemblies 120 and the positions are in a one-to-one correspondence to further improve the overall dimensional accuracy of the rail 230.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. Welding frock of massage armchair back frame, its characterized in that includes: the welding support is used for supporting two opposite massage chair back frames at the bottom of the massage chair back frames, the positioning assembly comprises a telescopic piece, a sliding rod and a rotating rod, the rotating rod is rotationally arranged on the welding support, the sliding rod is in driving connection with the telescopic piece and is rotationally connected with the rotating rod, the positioning assembly comprises two groups, two groups of rotating rods in the positioning assembly respectively support two inner sides opposite to the massage chair back frames, and the clamping assembly comprises two groups of clamping assemblies respectively support two outer sides opposite to the massage chair back frames.

2. The welding fixture of the massage chair back frame according to claim 1, wherein a carbon rod is arranged at the end part of the rotating rod, and the rotating rod is propped against the inner side of the massage chair back frame through the carbon rod.

3. The welding fixture of a massage chair back frame according to claim 1, wherein the welding bracket comprises a welding bottom plate and a vertical plate arranged on the welding bottom plate, a rotating groove and a rotating hole are respectively formed in two sides of the vertical plate, the sliding rod and the rotating rod are positioned in the rotating groove, the middle part of the rotating rod is rotatably arranged in the rotating hole, a fixing hole is formed in the end part of the rotating rod, and the sliding rod is rotatably arranged in the fixing hole.

4. A welding fixture for a back frame of a massage chair as in claim 3, wherein said vertical plate and said rotary rod each comprise a plurality of vertical plates, a plurality of said vertical plates are arranged in parallel, a plurality of said rotary rods are respectively rotatably arranged on a plurality of said vertical plates, and said sliding rod passes through a plurality of said vertical plates and is simultaneously rotatably connected with a plurality of said rotary rods.

5. A welding fixture for a back frame of a massage chair according to claim 3, wherein the two rotating grooves on the vertical plate are distributed in a mirror symmetry manner, the two rotating holes on the vertical plate are distributed in a mirror symmetry manner, and the two positioning assemblies are distributed symmetrically with respect to the vertical plate.

6. The welding fixture for the back frame of the massage chair according to claim 1, wherein a limiting block is arranged on the sliding rod, and the telescopic piece enables the sliding rod to have a first limit position and a second limit position through telescopic action; when the sliding rod is positioned at the first limit position, the limiting block and the welding bracket are arranged at intervals, and the end part of the rotating rod is separated from the inner side of the massage chair back frame; when the sliding rod is in the second limit position, the limiting block is propped against the welding bracket, and the end part of the rotating rod is propped against the inner side of the massage chair back frame.

7. The welding fixture of a massage chair back frame of claim 6, wherein said rotating lever is perpendicular to the inside of said massage chair back frame when said sliding lever is in said second extreme position.

8. The welding fixture of a massage chair back frame according to claim 2, wherein an arc groove is formed in an end portion of the rotating rod, the arc groove penetrates through the upper surface and the lower surface of the rotating rod, the carbon rod is inserted into the arc groove and in interference fit with the arc groove, and the carbon rod is partially exposed out of the arc groove.

9. A welding fixture for a massage chair back frame as in claim 3, wherein said welding base plate is provided with a plurality of fixing blocks for supporting said massage chair back frame in the extending direction of said massage chair back frame.

10. The welding fixture of a massage armchair back frame according to claim 1, wherein the clamping assembly comprises a plurality of clamping cylinders, and the plurality of clamping cylinders are used for simultaneously abutting against the outer side of the massage armchair back frame along the extension direction of the massage armchair back frame.