A metal workpiece spray painting fixture

Abstract

The present invention relates to the field of spray painting technology, and specifically to a metal workpiece spray painting fixture, comprising a workbench, a turntable, a first motor, a threaded rod, a sliding disk, a fixed disk, a first rotating rod, a second rotating rod and a connecting block; a clamping assembly is also provided on the second rotating rod and the rotating block, and the clamping assembly comprises a connecting support rod, a clamping support rod, a first slider, and a first elastic member. The abutment block first contacts with the special-shaped metal workpiece through the abutment block, thereby being squeezed so that the abutment block is moved according to the shape of different surfaces of the special-shaped metal workpiece, thereby driving the first slider to overcome the elastic force of the first elastic member through the third rotating rod, thereby adjusting the position of the abutment block so that it can be clamped according to the shape of different surfaces of the special-shaped metal workpiece, and finally driving the entire clamping assembly to rotate through the turntable to facilitate spraying of different surfaces of the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of spray painting, in particular to a metal workpiece spray painting fixture. Background Art

[0002] For manufacturers that mass-produce special-shaped metal products, water jet cutting is usually used. However, the special-shaped metal products after cutting are stained with water. After being taken out of the water jet cutting fluid and placed in the air, they are easily oxidized and then rust spots are formed. Therefore, after water jet cutting, the special-shaped metal products must be sprayed with essential oil, which is anti-rust spray paint.

[0003] Existing tooling fixtures for painting special-shaped metal workpieces, such as a metal workpiece painting clamping mechanism disclosed in Patent No. CN202121889773.1, drive the threaded rod to rotate through a motor to move the sliding plate on the threaded rod and the first rotating rod and the second rotating rod to drive the friction rod and the clamping pad to clamp the metal workpiece, but its clamping effect is only suitable for non-special-shaped workpieces or a very small number of special-shaped metal workpieces, which greatly reduces its applicability to special-shaped metal workpieces. Summary of the invention

[0004] Based on this, it is necessary to provide a metal workpiece painting fixture in view of the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A metal workpiece spray painting fixture, comprising a workbench, a turntable, a first motor, a threaded rod, a sliding disk, a fixed disk, a first rotating rod, a second rotating rod and a connecting block; a clamping assembly is also provided on the second rotating rod and the rotating block, the clamping assembly comprises a connecting support rod, a clamping support rod, a first sliding block, a first elastic member, a third rotating rod and abutting block, the connecting support rod is arranged on the second rotating rod and the connecting block, the connecting support rod is hinged to the second rotating rod and the connecting block respectively, and a first slot is also provided on the connecting support rod; a first latch corresponding to the first slot is provided on the clamping support rod, and a first sliding groove is provided on the clamping support rod; the first sliding groove corresponds to the first sliding groove and is provided with two, two first sliding grooves are provided. A slider is evenly distributed at both ends of the first slide groove, and each first slider is provided with a first hinge interface; the number of first elastic members is the same as that of the first sliders and they correspond one to one, and the two first elastic members are respectively arranged at the two ends of the first slide groove, and the two ends of each first elastic member are respectively connected to the inner wall of the first slide groove and the corresponding first slider, and the two first sliders tend to approach each other; the number of third rotating rods is the same as that of the first hinge interfaces and they correspond one to one, one end of the third rotating rod is arranged on the first hinge interface, and the third rotating rod is hinged to the first slider; two second hinge interfaces corresponding to the third rotating rods are arranged on the abutment block, and the second hinge interfaces are hinged to the other end of the corresponding third rotating rod.

[0007] Preferably, the sliding disk and the fixed disk are respectively provided with a first bearing and a second bearing. The first bearing is provided on the sliding disk, and the first bearing divides the sliding disk into a movable end and a rotating end. The second bearing is provided at both ends inside the fixed disk and is respectively connected to the threaded rod and the inside of the fixed disk.

[0008] Preferably, a plurality of evenly distributed guide pillars are provided on the turntable, and the sliding plate and the fixed plate are provided with guide sleeves the same number as that of the guide pillars and corresponding one to one.

[0009] Preferably, a first baffle and a second baffle are respectively provided on the two first sliding blocks, and a first guide rail corresponding to the first baffle and a second guide rail corresponding to the second baffle are respectively provided at both ends of the clamping bracket.

[0010] Preferably, the abutting block is composed of two connecting bases and a supporting pad, the two connecting bases are hinged to the two third rotating rods respectively, and the two connecting bases are also hinged to each other.

[0011] Preferably, the abutment pad is made of a flexible material and has a plurality of evenly distributed protrusions disposed on its top end.

[0012] Preferably, a first sliding rod wound by the first elastic member is arranged inside the first sliding groove, and a first through hole corresponding to the first sliding rod is also arranged on the first sliding block.

[0013] Preferably, a limit block is provided at the middle portion of the first slide groove, and the limit block is located between the two first sliding blocks.

[0014] Preferably, it further comprises a connecting buckle, on which a plurality of evenly distributed second slots are arranged, and on the clamping bracket a number of second latches which are the same in number as the slots and correspond one to one to each other are arranged.

[0015] Preferably, a second slot located at one end of the connecting buckle is provided with a plurality of evenly distributed first positioning holes, and a second latch corresponding to the second slot is provided with second positioning holes having the same number as the first positioning holes and corresponding one to one.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A metal workpiece painting clamp provided by the present invention drives a threaded rod to rotate through a first motor to move a sliding plate, thereby driving the first rotating rod, the second rotating rod and the connecting block to be displaced, so that the connecting support rod drives the clamping support rod connected to it through the first slot and the first pin to approach the special-shaped metal workpiece or move away from the metal workpiece. If it is approaching, the abutment block will first contact the special-shaped metal workpiece, thereby being squeezed to make the abutment block move according to the shape of different surfaces of the special-shaped metal workpiece, thereby driving the first sliding block to overcome the elastic force of the first elastic member through the third rotating rod, thereby adjusting the position of the abutment block so that it can clamp according to the shape of different surfaces of the special-shaped metal workpiece, and finally driving the entire clamping assembly to rotate through the turntable to facilitate painting on different surfaces of the workpiece. If it is moving away, the elastic force of the first elastic member will overcome the squeezing force to reset the two first sliding blocks, which is convenient for the next clamping work.

[0018] 2. The present invention provides a metal workpiece painting fixture, which uses a first bearing and a second bearing to prevent a fixed plate, a sliding plate, and the first rotating rod, a second rotating rod, a connecting block, and a clamping assembly thereon from rotating with the threaded rod, and the sliding plate is divided into a moving end and a rotating end by the first bearing, so that the moving end is connected to the threaded rod to reduce the processing process on the inner wall of the bearing and increase the service life of the first bearing.

[0019] 3. The present invention provides a metal workpiece painting fixture, which uses guide pillars and guide sleeves to prevent the sliding disk and the fixed disk from rotating due to gravity. At the same time, the two can be connected by the guide pillars on the turntable so that the turntable can drive the two to rotate at the same time and prevent the two from rotating synchronously.

[0020] 4. The present invention provides a metal workpiece painting fixture, which prevents paint from being sprayed in through the first baffle and the second baffle, and at the same time enables the baffle to follow the movement of the first slide block through the first guide rail and the second guide rail.

[0021] 5. The present invention provides a metal workpiece painting fixture, in which the abutment block is composed of two connecting bases and a supporting pad, and the two connecting bases are also hinged, so that the abutment block can also rotate through the two hinged connecting bases when encountering an irregular first end, thereby increasing adaptability.

[0022] 6. The present invention provides a metal workpiece painting clamp, which increases the clamping effect by setting the abutment pad to a flexible material so that it can deform when it abuts against the special-shaped metal workpiece, and can cooperate with two hinged connecting bases. The raised part can increase the friction force and further enhance the clamping effect.

[0023] 7. The present invention provides a metal workpiece painting fixture, which increases the connection effect of the first slider through the first sliding rod and the first through hole to prevent it from slipping out during rotation. At the same time, the first sliding rod is wrapped by two first elastic parts, which can effectively prevent the first elastic part from tilting from the middle part, thereby reducing its service life or causing damage.

[0024] 8. The present invention provides a metal workpiece painting fixture, which ensures the inclination angle of the third rotating rod by setting a limit block located between two first sliding blocks in the first middle part to facilitate the adjustment of the position of the abutment block. It should be noted that the first baffle is lower than the second baffle, which can prevent the two baffles at one end from abutting and getting stuck during splicing.

[0025] 9. The present invention provides a metal workpiece painting clamp, which is connected by a buckle, a plurality of evenly distributed second slots on the buckle, and a second pin on the clamping bracket that is the same number and one-to-one corresponding to the slots, so that multiple clamping brackets and abutment blocks thereon can be added to achieve clamping of different surfaces of special-shaped metal workpieces.

[0026] 10. The present invention provides a metal workpiece painting fixture, which can adjust the distance between the two clamping brackets according to the positioning holes by respectively setting the first positioning hole and the second positioning hole on the second slot and the second pin, and can strengthen the connection effect between the connecting buckle and the two clamping brackets by inserting external bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a stereogram of the present application;

[0028] Figure 2 yes Figure 1 A local enlarged view of point A;

[0029] Figure 3 yes Figure 1 A local enlarged view of point B;

[0030] Figure 4 is a three-dimensional diagram of the clamping assembly of the present application;

[0031] Figure 5 yes Figure 4 A local enlarged view of point C;

[0032] Figure 6 yes Figure 4 A local enlarged view of D;

[0033] Figure 7 is a side view of the clamping assembly of the present application;

[0034] Figure 8 yes Figure 7 A local enlarged view of a portion of the EE section;

[0035] Fig. 9 yes Figure 8 A local enlarged view of point F;

[0036] Fig.10 yes Figure 8 A local enlarged view of G;

[0037] The numbers in the figure are:

[0038] 1- sliding plate; 1a- first bearing; 1b- moving end; 1c- rotating end;

[0039] 2-fixed plate; 2a-second bearing; 2b-guide column; 2c-guide sleeve;

[0040] 3-connecting support rod; 3a-first slot;

[0041] 4-clamping support rod; 4a-first latch; 4b-first slide groove; 4b1-first slide rod; 4b2-limiting block; 4c-first guide rail; 4d-second guide rail; 4e-second latch; 4e1-second positioning hole;

[0042] 5-first slider; 5a-first hinge port; 5b-first baffle; 5c-second baffle; 5d-first through hole;

[0043] 6-first elastic member;

[0044] 7- third rotating rod;

[0045] 8-abutment block; 8a-second hinge port; 8b-connection base; 8c-abutment pad; 8d-protrusion;

[0046] 9-connecting buckle; 9a-second slot; 9a1-first positioning hole. DETAILED DESCRIPTION

[0047] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] like Figures 1 to 10 As shown, this application provides:

[0049] A metal workpiece spray painting fixture, comprising a workbench, a turntable, a first motor, a threaded rod, a sliding plate 1, a fixed plate 2, a first rotating rod, a second rotating rod and a connecting block; a clamping assembly is also provided on the second rotating rod and the rotating block, the clamping assembly comprises a connecting support rod 3, a clamping support rod 4, a first slider 5, a first elastic member 6, a third rotating rod 7 and abutting block 8, the connecting support rod 3 is provided on the second rotating rod and the connecting block, the connecting support rod 3 is hinged to the second rotating rod and the connecting block respectively, and a first slot 3a is also provided on the connecting support rod 3; a first latch 4a corresponding to the first slot 3a is provided on the clamping support rod 4, and a first slide groove 4b is provided on the clamping support rod 4; the first slide groove 4b corresponds to the first slide groove 4b and is provided with two, two first slides 5 Evenly distributed at both ends of the first slide groove 4b, each first slider 5 is provided with a first hinge port 5a; the first elastic members 6 are the same in number and correspond one to one with the first slider 5, and the two first elastic members 6 are respectively arranged at the two ends of the first slide groove 4b, and the two ends of each first elastic member 6 are respectively connected to the inner wall of the first slide groove 4b and the corresponding first slider 5, and the two first sliders 5 tend to approach each other; the third rotating rod 7 is the same in number and corresponds one to one with the first hinge port 5a, one end of the third rotating rod 7 is arranged on the first hinge port 5a, and the third rotating rod 7 is hinged to the first slider 5; two second hinge ports 8a corresponding to the third rotating rod 7 are provided on the abutment block 8, and the second hinge port 8a is hinged to the other end of the corresponding third rotating rod 7.

[0050] Based on the above embodiments, the technical problem that this application aims to solve is how to make the clamp adapt to the special-shaped metal workpiece. Figures 1 to 10 As shown, the present application drives the threaded rod to rotate through the first motor to move the sliding plate 1, thereby driving the first rotating rod, the second rotating rod and the connecting block to move, so that the connecting support rod 3 drives the clamping support rod 4 connected to it through the first slot 3a and the first pin 4a to approach the special-shaped metal workpiece or move away from the metal workpiece. If it is close, the abutment block 8 will first contact the special-shaped metal workpiece, thereby being squeezed so that the abutment block 8 is moved according to the shape of different surfaces of the special-shaped metal workpiece, thereby driving the first sliding block 5 to overcome the elastic force of the first elastic member 6 through the third rotating rod 7, thereby adjusting the position of the abutment block 8 so that it can be adjusted according to the shape of the special-shaped metal workpiece. The shapes of different surfaces of the workpiece are clamped, and finally the entire clamping assembly is driven to rotate by the turntable to facilitate painting on different surfaces of the workpiece. If it is far away, the elastic force of the first elastic member 6 will overcome the extrusion force to reset the two first sliding blocks 5, which is convenient for the next clamping work. It should be noted that the workbench, turntable, first motor, threaded rod, sliding disk 1, fixed disk 2, first rotating rod, second rotating rod and connecting block are all prior art, so they are drawn or not drawn in detail in the figure, and the first rotating rod, second rotating rod, connecting block and clamping assembly are all provided with multiple ones to facilitate clamping of different surfaces of special-shaped metal workpieces.

[0051] Further:

[0052] The sliding plate 1 and the fixed plate 2 are respectively provided with a first bearing 1a and a second bearing 2a. The first bearing 1a is provided on the sliding plate 1, and the first bearing 1a divides the sliding plate 1 into a moving end 1b and a rotating end 1c. The second bearing 2a is provided inside the fixed plate 2, and the two ends are respectively connected to the threaded rod and the inside of the fixed plate 2.

[0053] Based on the above embodiments, the technical problem that the present application aims to solve is how to prevent the sliding plate 1 and the fixed plate 2 from rotating together when the threaded rod rotates. Figure 2 and Figure 3 As shown, the present application uses the first bearing 1a and the second bearing 2a to prevent the fixed plate 2, the sliding plate and the first rotating rod, the second rotating rod, the connecting block and the clamping assembly thereon from rotating with the threaded rod, and the sliding plate 1 is divided into a movable end 1b and a rotating end 1c by the first bearing 1a, so that the movable end 1b is connected to the threaded rod, thereby reducing the processing process on the inner wall of the bearing and increasing the service life of the first bearing 1a.

[0054] Further:

[0055] A plurality of evenly distributed guide posts 2 b are arranged on the turntable, and guide sleeves 2 c are arranged on the sliding plate 1 and the fixed plate 2 in the same number as the guide posts 2 b and in one-to-one correspondence.

[0056] Based on the above embodiments, the technical problem that the present application intends to solve is how to prevent the sliding plate 1 and the fixed plate 2 provided with the first bearing 1a and the second bearing 2a from rotating due to gravity. Figure 2 and Figure 3 As shown, the present application uses guide pillars 2b and guide sleeves 2c to prevent the sliding disk 1 and the fixed disk 2 from rotating due to gravity. At the same time, the two can be connected by the guide pillars 2b on the turntable so that the turntable can drive the two to rotate at the same time and prevent the two from rotating synchronously.

[0057] Further:

[0058] The two first slide blocks 5 are respectively provided with a first baffle 5b and a second baffle 5c, and the two ends of the clamping bracket are respectively provided with a first guide rail 4c corresponding to the first baffle 5b and a second guide rail 4d corresponding to the second baffle 5c.

[0059] Based on the above embodiments, the technical problem that this application aims to solve is how to prevent paint from dripping into the first chute 4b and affecting the transmission effect. Figure 5 and Figure 6 As shown, the present application prevents paint from being sprayed in through the first baffle plate 5b and the second baffle plate 5c, and at the same time, the baffle plate is facilitated to follow the movement of the first slide block 5 through the first guide rail 4c and the second guide rail 4d.

[0060] Further:

[0061] The abutting block 8 is composed of two connecting bases 8b and a supporting pad 8c. The two connecting bases 8b are respectively hinged to the two third rotating rods 7, and the two connecting bases 8b are also hinged to each other.

[0062] Based on the above embodiments, the technical problem that the present application intends to solve is how to enhance the adaptability of the abutment block 8 to the special-shaped metal workpiece. Figure 6 As shown, the present application forms the abutment block 8 by two connecting bases 8b and a supporting pad 8c, and the two connecting bases 8b are also hinged, so that the abutment block 8 can also be rotated through the two hinged connecting bases 8b when encountering an irregular first end, thereby increasing adaptability.

[0063] Further:

[0064] The abutment pad 8c is made of a flexible material and has a top end provided with a plurality of evenly distributed protrusions 8d.

[0065] Based on the above embodiments, the technical problem that this application intends to solve is how to enhance the clamping effect. Figure 6 As shown, the present application increases the clamping effect by setting the abutment pad 8c to be a flexible material so that it can deform when abutting against the special-shaped metal workpiece, and at the same time can cooperate with the two hinged connecting bases 8b, and the protrusion 8d can increase the friction force to further enhance the clamping effect.

[0066] Further:

[0067] A first sliding rod 4b1 wound by the first elastic member 6 is disposed inside the first sliding groove 4b, and a first through hole 5d corresponding to the first sliding rod 4b1 is also disposed on the first sliding block 5.

[0068] Based on the above embodiments, the technical problem that the present application aims to solve is how to prevent the first elastic member 6 and the first slider 5 from sliding out due to the centrifugal force during rotation, resulting in tilting or damage. Figure 8 and Fig. 9 As shown, the present application increases the connection effect of the first slider 5 through the first slide rod 4b1 and the first through hole 5d to prevent it from slipping out during rotation. At the same time, the first slide rod 4b1 is wrapped by two first elastic members 6, which can effectively prevent the first elastic member 6 from tilting from the middle part, thereby reducing its service life or causing damage.

[0069] Further:

[0070] A limiting block 4b2 is disposed in the middle of the first sliding groove 4b, and the limiting block 4b2 is located between the two first sliding blocks 5.

[0071] Based on the above embodiments, the technical problem that the present application aims to solve is how to prevent the two first sliders 5 from abutting against each other so that the inclination angle of the third rotating rod 7 changes, thereby making it difficult to adjust the position of the abutting block 8. Figure 8 As shown, the present application ensures the inclination angle of the third rotating rod 7 by setting a limit block 4b2 located between the two first sliders 5 in the first middle position to facilitate the adjustment of the position of the abutment block 8. It should be noted that the first baffle plate 5b is lower than the second baffle plate 5c, which can prevent the two baffle plates at one end from abutting and getting stuck during splicing.

[0072] Further:

[0073] It also includes a connecting buckle 9, on which a plurality of evenly distributed second slots 9a are arranged, and the clamping bracket is provided with second latches 4e, which are the same in number as the slots and correspond one to one.

[0074] Based on the above embodiments, the technical problem that this application aims to solve is how to enhance the fixing effect on different surfaces of special-shaped metal workpieces. Figure 7 , Figure 8 and Fig.10 As shown, the present application makes it possible to add multiple clamping brackets and the abutment blocks 8 thereon by connecting the buckle 9, a plurality of evenly distributed second slots 9a on the connecting buckle 9, and second pins 4e on the clamping bracket that are the same number and correspond one to one with the slots, so as to achieve clamping of different surfaces of special-shaped metal workpieces.

[0075] Further:

[0076] A second slot 9a at one end of the connecting buckle 9 is provided with a plurality of evenly distributed first positioning holes 9a1, and the second latch 4e is provided with the same number of second positioning holes 4e1 as the first positioning holes 9a1 and corresponding to each other.

[0077] Based on the above embodiments, the technical problem that this application aims to solve is how to adjust the distance between the two clamping brackets. Fig.10 As shown, the present application respectively sets a first positioning hole 9a1 and a second positioning hole 4e1 on the second slot 9a and the second pin 4e so that the distance between the two clamping brackets can be adjusted according to the positioning holes, and the connection effect between the connecting buckle 9 and the two clamping brackets can be strengthened by inserting external bolts.

[0078] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A metal workpiece spray painting fixture, comprising a workbench, a turntable, a first motor, a threaded rod, a sliding plate (1), a fixed plate (2), a first rotating rod, a second rotating rod and a connecting block; characterized in that: The second rotating rod and the connecting block are also provided with a clamping assembly, the clamping assembly comprising a connecting rod (3), a clamping rod (4), a first slider (5), a first elastic member (6), a third rotating rod (7) and abutting block (8), the connecting rod (3) being provided on the second rotating rod and the connecting block, the connecting rod (3) being hinged to the second rotating rod and the connecting block respectively, the connecting rod (3) being also provided with a first slot (3a); the clamping rod (4) being provided with a first latch (4a) corresponding to the first slot (3a), the clamping rod (4) being provided with a first slide groove (4b); the first slide groove (5) corresponding to the first slide groove (4b) and being provided with two first slide grooves (5), the two first slide grooves (5) being evenly distributed at both ends of the first slide groove (4b), each first slide groove (5) being provided with a a first hinge interface (5a); the first elastic members (6) are the same in number and correspond one to one with the first slider (5); the two first elastic members (6) are respectively arranged at the two ends of the first slide groove (4b); the two ends of each first elastic member (6) are respectively connected to the inner wall of the first slide groove (4b) and the corresponding first slider (5), and the two first sliders (5) tend to approach each other; the third rotating rods (7) are the same in number and correspond one to one with the first hinge interface (5a); one end of the third rotating rod (7) is arranged on the first hinge interface (5a), and the third rotating rod (7) is hinged to the first slider (5); the abutment block (8) is provided with two second hinge interfaces (8a) corresponding to the third rotating rods (7), and the second hinge interfaces (8a) are hinged to the other end of the corresponding third rotating rod (7); The sliding plate (1) is rotatably connected to a first rotating rod, the first rotating rod is rotatably connected to a second rotating rod, the second rotating rod is connected to a connecting block, and the connecting block is connected to the fixed plate (2); The abutment block (8) is composed of two connection bases (8b) and a abutment pad (8c); the two connection bases (8b) are respectively hinged to the two third rotating rods (7), and the two connection bases (8b) are also hinged to each other; The abutment pad (8c) is made of a flexible material and has a plurality of evenly distributed protrusions (8d) arranged on its top end; A first sliding rod (4b1) wound by a first elastic member (6) is disposed inside the first sliding groove (4b), and a first through hole (5d) corresponding to the first sliding rod (4b1) is also disposed on the first sliding block (5); A limit block (4b2) is provided in the middle of the first slide groove (4b), and the limit block (4b2) is located between the two first sliding blocks (5); It also comprises a connecting buckle (9), on which a plurality of evenly distributed second slots (9a) are arranged, and on the clamping support rod (4) a number of second latches (4e) which are the same as the number of the slots and correspond one to one to the other are arranged; A second slot (9a) located at one end of the connecting buckle (9) is provided with a plurality of evenly distributed first positioning holes (9a1), and a second latch (4e) is provided with the same number of second positioning holes (4e1) as the first positioning holes (9a1) and corresponding one to one.

2. A metal workpiece painting fixture according to claim 1, characterized in that: A first bearing (1a) and a second bearing (2a) are respectively arranged on the sliding disk (1) and the fixed disk (2); the first bearing (1a) is arranged on the sliding disk (1), and the first bearing (1a) divides the sliding disk (1) into a moving end (1b) and a rotating end (1c); the second bearing (2a) is arranged inside the fixed disk (2) and is respectively connected to the threaded rod and the inside of the fixed disk (2) at both ends.

3. A metal workpiece painting fixture according to claim 2, characterized in that: A plurality of evenly distributed guide pillars (2b) are arranged on the turntable, and guide sleeves (2c) having the same number as the guide pillars (2b) and corresponding one to one are arranged on the sliding plate (1) and the fixed plate (2).

4. A metal workpiece painting fixture according to claim 1, characterized in that: A first baffle (5b) and a second baffle (5c) are respectively provided on the two first sliding blocks (5), and a first guide rail (4c) corresponding to the first baffle (5b) and a second guide rail (4d) corresponding to the second baffle (5c) are respectively provided at both ends of the clamping support rod (4).

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