Display stand processing and welding device

Abstract

The present invention provides a display rack processing welding device, which relates to the field of welding positioning, and comprises: a positioning component, wherein the positioning component is composed of a clamping control mechanism and a switching mechanism, and solves the problem that the use position and the loosening of the adjusting clamp block of the existing display rack welding positioning device are both regulated by the same transmission structure, thereby causing the moving speed ratio to be unable to be changed, and the clamp block moves slowly during large stroke adjustment, and cannot quickly reach the required position. The positioning component has two regulating modes, namely, a loosening mode and a positioning mode. In the loosening mode, the positioning and the use position adjustment operations of the positioning clamp block installed on the top of the positioning seat are realized through the external thread transmission of the positioning rod, thereby realizing the positioning of the display rack accessories and the subsequent welding operation. In the positioning mode, the thread transmission relationship of the positioning component is released, thereby realizing the unlocking operation of the positioning seat, so that the required use position can be reached quickly with a large span.

Description

Technical Field

[0001] The invention relates to the technical field of welding positioning, and in particular to a display stand processing welding device. Background Art

[0002] A display stand is a common display device that can display different items inside the stand for people to view and select. During the production and processing of the display stand, welding technology is required to assemble the various components of the display stand. During the welding process, a positioning device is required to position the workpiece to be welded, thereby facilitating subsequent welding operations.

[0003] However, as for the positioning device used in the welding processing of the existing display rack, the adjustment position of the clamp block and the loosening of the clamp are all regulated by the same transmission structure, so that the moving speed ratio cannot be changed. When adjusting the large stroke, the clamp block moves slowly and cannot quickly reach the required position, which is troublesome and has poor flexibility and adaptability. Summary of the invention

[0004] In view of this, the present invention provides a display rack processing and welding device, which has a positioning component. The positioning component has two control modes, which can realize a series of operations of loosening, fast moving and positioning under the control of the external thread of the positioning rod. The use is convenient and flexible. The two control modes are the loosening mode and the positioning mode. In the loosening mode, the positioning and adjustment of the use position of the positioning clamp installed on the top of the positioning seat are realized through the external thread transmission of the positioning rod, thereby realizing the positioning and subsequent welding operations of the display rack accessories. In the positioning mode, the thread transmission relationship of the positioning component is released to realize the unlocking operation of the positioning seat. Therefore, without the regulation of the external thread of the positioning rod, the positioning component can move freely inside the installation shell, so that it can reach the required use position with a large span and quickly, and can adapt to the rapid positioning operation of a variety of display rack accessories with large size differences. The operation is convenient and fast. The switching between the two use modes can be realized by the switching rod. It is easy to use and has strong flexibility, adaptability and practicality.

[0005] The present invention provides a display stand processing and welding device, which specifically comprises: an installation component, wherein the installation component comprises an installation shell and a positioning rod, wherein the positioning rod is fixedly installed inside the installation shell; a positioning component, wherein the positioning component is composed of a clamping control mechanism and a switching mechanism, wherein the clamping control mechanism comprises a positioning seat, a control rod, a synchronous rotating block and a linkage locking block, wherein the positioning seat is plugged into the inside of the installation shell, and the rod body of the positioning rod passes through the seat body of the positioning seat, wherein the control rod is rotationally connected to the inside of the positioning seat, wherein the synchronous rotating block is rotationally connected to the inside of the positioning seat, and the linkage locking block is radially plugged into the inside of the synchronous rotating block; wherein the switching mechanism comprises a displacement switching disk, a guide column, a driving cylinder and A switching rod, the displacement switching disk is axially plugged into the outside of the synchronous rotating block, and the displacement switching disk is plugged into the inside of the positioning seat, the guide column is plugged into the inside of the positioning seat, and one end of the guide column is rotatably connected to the inside of the displacement switching disk, the driving cylinder is plugged into the inside of the guide column, and the driving cylinder is rotatably connected to the inside of the positioning seat, and the switching rod is plugged into the inside of the positioning seat; a positioning clamp block, the top of the positioning seat and the top of the mounting shell are fixedly installed with positioning clamp blocks, and the two positioning clamp blocks are on the same straight line, the connecting line between the two positioning clamp blocks is parallel to the rod body of the positioning rod, and the rod body of the positioning rod passes through the inside of the synchronous rotating block, the displacement switching disk, the guide column and the driving cylinder.

[0006] Furthermore, a control gear is provided on the outside of the rod body of the control rod, and a clamping control gear is provided on the outside of the synchronous rotating block, and the gear teeth of the control gear and the clamping control gear are meshed for transmission.

[0007] Furthermore, a control thread segment is provided at the bottom of the linkage lock block, and a thread is provided on the outside of the rod body of the positioning rod, and the thread on the outside of the rod body of the positioning rod cooperates with the thread of the control thread segment.

[0008] Furthermore, a switching control groove is provided on the side of the displacement switching disk, and a switching guide column is provided on the side of the linkage locking block, and the switching guide column is inserted into the inside of the switching control groove.

[0009] Furthermore, the slot body of the switching control slot is "L"-shaped, and the switching control slot consists of a locking control slot and an unlocking control slot, the slot body of the locking control slot is horizontally designed, and the slot body of the unlocking control slot is inclined, and one end of the locking control slot is connected to the unlocking control slot.

[0010] Furthermore, a separation top spring is provided on the side of the synchronous rotating block, and the two ends of the separation top spring respectively abut against the side of the synchronous rotating block and the side of the displacement switching disk. Under the action of the separation top spring, the switching guide column of the positioning assembly is located inside the locking control groove when it is in the reset state.

[0011] Furthermore, the column body cross section of the guide column is a regular polygon, and a guide groove is provided inside the positioning seat, and the column body of the guide column is inserted into the inside of the guide groove.

[0012] Furthermore, a driving groove is provided on the outside of one side of the driving cylinder, and the groove body of the driving groove is designed in a spiral shape, and a driving protrusion is provided inside the guide column, and the driving protrusion is inserted into the inside of the driving groove.

[0013] Furthermore, a driving gear is provided on the other side of the driving cylinder, and a switching rack is provided on the side of the switching rod, and the switching rack and the driving gear are meshed with each other for transmission.

[0014] Furthermore, the cross section of the seat body of the positioning seat is "T"-shaped, and a track groove is provided inside the mounting shell, and the positioning seat is plugged into the inside of the track groove.

[0015] Beneficial Effects

[0016] 1. When the device is in use, the positioning component has two control modes, which can realize a series of operations such as loosening, rapid movement and positioning under the control of the external thread of the positioning rod. It is convenient and flexible to use. The two control modes are loosening mode and positioning mode. In the loosening mode, the positioning clamp installed on the top of the positioning seat is positioned and the use position is adjusted through the external thread of the positioning rod, thereby realizing the positioning and subsequent welding operations of the display rack accessories. In the positioning mode, the thread transmission relationship of the positioning component is released to realize the unlocking operation of the positioning seat. Therefore, without the regulation of the external thread of the positioning rod, the positioning component can move freely inside the installation shell, so that it can reach the required use position with a large span and quickly, and can adapt to the rapid positioning operation of various display rack accessories with large differences in size and specifications. The operation is convenient and fast. The switching between the two use modes can be realized by the switching rod. It is easy to use and improves the flexibility, adaptability and practicality of the device.

[0017] 2. The device is in a clamping release mode when in the reset state, and rotating the control lever can realize the movement and clamping operation of the positioning seat, thereby realizing the positioning operation of the display stand accessories, and in the clamping release mode, under the limiting action of the locking control groove, the switching guide column cannot move in the radial direction of the synchronous rotating block when in the reset state due to the limiting action of the locking control groove, thereby being able to stably maintain the cooperation between the control thread segment and the outer rod body of the positioning rod, and in the positioning mode, the control thread segment can release the cooperation with the outer thread of the positioning rod, that is, release the locking state of the positioning seat, and thereafter directly pull the upper positioning seat to ignore the rod thread of the positioning rod and move freely inside the mounting shell, so that it can reach the required use position with a large span and quickly, and can also adapt to the rapid positioning operation of a variety of display stand accessories with large differences in size and specifications, with strong flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the internal structure of the present invention when it is in a reset state (unclamping mode).

[0023] Figure 3 It is a schematic diagram of the internal structure of the positioning seat after disassembly of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the synchronous transfer block after disassembly.

[0025] Figure 5 It is a schematic diagram of the structure after the switching structure of the present invention is disassembled.

[0026] Figure 6 It is a schematic diagram of the structure inside the positioning assembly when the switching lever is pressed (switched from the clamping release mode to the positioning mode) of the present invention.

[0027] Figure 7 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0028] Figure 8 The present invention Figure 6 Schematic diagram of the enlarged structure of part B in the middle.

[0029] Fig. 9 The present invention Figure 6 Schematic diagram of the enlarged structure of part C in the middle.

[0030] Reference numerals list

[0031] 1. Installation assembly; 101. Installation shell; 1011. Track groove; 102. Positioning rod; 2. Clamping control mechanism; 201. Positioning seat; 2011. Guide groove; 202. Control rod; 2021. Control gear; 203. Synchronous rotating block; 2031. Clamping control gear; 2032. Separation top spring; 204. Linkage locking block; 2041. Control thread segment; 2042. Switching guide column; 3. Switching mechanism; 301. Displacement switching disk; 311. Switching control groove; 3111. Locking control groove; 3112. Unlocking control groove; 302. Guide column; 3021. Driving protrusion; 303. Driving cylinder; 3031. Driving groove; 3032. Driving gear; 304. Switching rod; 3041. Switching rack; 4. Positioning clamp block. DETAILED DESCRIPTION

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of specific embodiments of the present invention.

[0033] Please refer to Figures 1 to 9 As shown:

[0034] Embodiment 1:

[0035] The present invention provides a display stand processing and welding device, comprising an installation component 1, the installation component 1 comprises an installation shell 101 and a positioning rod 102, the positioning rod 102 is fixedly installed inside the installation shell 101; a positioning component, the positioning component is composed of a clamping control mechanism 2 and a switching mechanism 3, the clamping control mechanism 2 comprises a positioning seat 201, a control rod 202, a synchronous rotating block 203 and a linkage locking block 204, the positioning seat 201 is plugged into the inside of the installation shell 101, and the rod body of the positioning rod 102 passes through the seat body of the positioning seat 201, the control rod 202 is rotatably connected to the inside of the positioning seat 201, the synchronous rotating block 203 is rotatably connected to the inside of the positioning seat 201, and the linkage locking block 204 is radially plugged into the inside of the synchronous rotating block 203; the switching mechanism 3 comprises a displacement switching disk 301, a guide column 302, a driving cylinder 303 and a switching rod 30 4. The displacement switching disk 301 is axially plugged into the outside of the synchronous rotating block 203, and the displacement switching disk 301 is plugged into the inside of the positioning seat 201, the guide column 302 is plugged into the inside of the positioning seat 201, and one end of the guide column 302 is rotatably connected to the inside of the displacement switching disk 301, the driving cylinder 303 is plugged into the inside of the guide column 302, and the driving cylinder 303 is rotatably connected to the inside of the positioning seat 201, and the switching rod 304 is plugged into the inside of the positioning seat 201; positioning clamping block 4, the top of the positioning seat 201 and the top of the mounting shell 101 are fixedly installed with positioning clamping blocks 4, and the two positioning clamping blocks 4 are on the same straight line, the connecting line between the two positioning clamping blocks 4 is parallel to the rod body of the positioning rod 102, and the rod body of the positioning rod 102 passes through the inside of the synchronous rotating block 203, the displacement switching disk 301, the guide column 302 and the driving cylinder 303.

[0036] Among them, a separation top spring 2032 is provided on the side of the synchronous rotating block 203, and the two ends of the separation top spring 2032 are respectively against the side of the synchronous rotating block 203 and the side of the displacement switching disk 301. Under the action of the separation top spring 2032, the switching guide post 2042 of the positioning assembly is located inside the locking control groove 3111 when the positioning assembly is in the reset state. The side of the displacement switching disk 301 is provided with a switching control groove 311, and the side of the linkage lock block 204 is provided with a switching guide post 2042. The switching guide post 2042 is inserted into the inside of the switching control groove 311. The groove body of the switching control groove 311 is "L" shaped, and the switching control groove 311 consists of a locking control groove 3111 and an unlocking control groove 3112. One end of the locking control groove 3111 is connected to the unlocking control groove 3112. During use, the positioning assembly has a loose clamping mode. In the loose clamping mode, the positioning clamping block 4 installed on the top of the positioning seat 201 is positioned and the use position is adjusted through the external thread transmission of the positioning rod 102, thereby realizing the positioning and subsequent welding operations of the display stand accessories. In the reset state, it is in the loose clamping mode, that is, when the switching rod 304 is not affected by external force, the rotating control rod 202 can realize the movement and loosening operation of the positioning seat 201. At this time, under the action of the separation top spring 2032, the switching control groove 311 positions the use position of the linkage lock block 204 by switching the guide column 2042, so that the control thread segment 2041 of the linkage lock block 204 can stably cooperate with the external thread of the positioning rod 102, thereby realizing the locking and positioning use of the positioning seat 201.

[0037] The control gear 2021 is provided on the outside of the rod body of the control rod 202, and the clamping control gear 2031 is provided on the outside of the synchronous rotating block 203. The gear teeth of the control gear 2021 and the clamping control gear 2031 are engaged for transmission. When the clamping operation is required, the switching rod 304 is rotated. When the switching rod 304 is rotated, the control gear 2021 can drive the synchronous rotating block 203 to rotate through the clamping control gear 2031. When the synchronous rotating block 203 is rotated, it can drive the linkage locking block 204 to rotate synchronously. A control thread section 2041 is provided at the bottom of the linkage locking block 204, and the rod body of the positioning rod 102 is provided with a thread. The thread on the outside of the rod body of the positioning rod 102 is threadedly matched with the control thread section 2041. Therefore, when the linkage locking block 204 is rotated, the positioning seat 201 can be driven to move by the cooperation of the control thread section 2041 and the rod body thread of the positioning rod 102, thereby changing the use spacing between the two positioning clamping blocks 4, thereby realizing the positioning operation of the display rack accessories, which is convenient and flexible to use and easy to operate.

[0038] Embodiment 2:

[0039] On the basis of Example 1, the groove body of the locking control groove 3111 is horizontally designed, and the groove body of the unlocking control groove 3112 is inclined. In use, the locking control groove 3111 is horizontally designed, that is, the groove body direction of the locking control groove 3111 is in the axial direction of the synchronous rotating block 203, and when the positioning assembly is in the reset state, the switching guide column 2042 is located inside the locking control groove 3111 under the action of the separation top spring 2032, so that when the switching guide column 2042 is in the reset state, it is limited by the locking control groove 3111, so that the switching guide column 2042 cannot move in the radial direction of the synchronous rotating block 203, thereby stably maintaining the coordination between the control thread segment 2041 and the outer rod body of the positioning rod 102, which is convenient to adjust and stable in positioning. There will be no accidental loosening operation during use, and it is convenient and flexible to use.

[0040] Embodiment 3:

[0041] On the basis of Example 1 and Example 2, a driving groove 3031 is provided on the outside of one side of the driving cylinder 303, and the groove body of the driving groove 3031 is of spiral design, and a driving protrusion 3021 is provided inside the guide column 302, and the driving protrusion 3021 is inserted into the inside of the driving groove 3031. This design enables the positioning component to also have a positioning mode. In the positioning mode, the control thread segment 2041 can release the cooperation with the external thread of the positioning rod 102, that is, the locking state of the positioning seat 201 is released. Thereafter, the upper positioning seat 201 can be directly pulled to ignore the rod body thread of the positioning rod 102 and move freely inside the mounting shell 101. It can reach the required use position with a large span and quickly, and can also adapt to the rapid positioning operation of various display rack accessories with large differences in size and specifications, and has strong flexibility and adaptability.

[0042] The other side of the driving cylinder 303 is provided with a driving gear 3032, and the side of the switching rod 304 is provided with a switching rack 3041. The gear teeth of the switching rack 3041 and the driving gear 3032 are engaged with each other for transmission. In use, the switching operation of the two use modes of the device can be realized by the switching rod 304. Taking the switching from the reset state (clamp release mode) to the positioning mode for use as an example, the switching operation can be realized by pressing the switching rod 304. When the switching rod 304 is pressed, the switching rack 3041 of the switching rod 304 can drive the driving cylinder 303 to rotate through the driving gear 3032. The column cross-section of the guide column 302 is a positive multi-point The guide column 302 is inserted into the guide groove 2011. Under the guiding effect of the guide groove 2011, when the driving cylinder 303 rotates, the driving groove 3031 can drive the guide column 302 to move inside the positioning seat 201 through the driving protrusion 3021, so that the guide column 302 can drive the displacement switching disk 301 to move in the direction close to the synchronous rotating block 203 when moving. When the displacement switching disk 301 moves, the switching guide column 2042 can enter the unlocking control groove 3112 from the locking control groove 3111. The slot body is designed to be inclined, so that the displacement switching disk 301 unlocks the control slot 3112 when moving, and can drive the linkage lock block 204 to move in the radial direction of the synchronous rotating block 203 through the switching guide column 2042, thereby releasing the matching relationship between the control thread segment 2041 and the rod thread of the positioning rod 102, that is, thereafter the positioning seat 201 is no longer subject to the locking constraint of the positioning rod 102 and can freely change the use position, thereby realizing the function of large span and rapid arrival at the required use position, which is convenient and flexible to use, easy to switch, fast in positioning, and highly adaptable. After loosening the switching rod 304, the positioning assembly can automatically move under the action of the separation top spring 2032 The reset restores the lock of the positioning seat 201 to prepare for the subsequent regulation of the device through the loose clamping mode, and resets it through the flexible force of the separation top spring 2032, so that when the device is restored from the positioning mode to the loose clamping mode (reset state), the control thread segment 2041 can stably re-engage with the rod body thread of the positioning rod 102, even if there is a misalignment between the two, after the control rod 202 is rotated again, the control thread segment 2041 can re-engage with the rod body thread of the positioning rod 102 under the action of the separation top spring 2032, and the device will not be unusable due to switching failure, thereby improving the stability of the device.

[0043] Example 4

[0044] On the basis of Example 1, Example 2 and Example 3, the cross-section of the seat body of the positioning seat 201 is "T"-shaped, and a track groove 1011 is provided inside the mounting shell 101. The setting direction of the track groove 1011 is parallel to the setting direction of the positioning rod 102. The positioning seat 201 is inserted into the inside of the track groove 1011. During use, the track groove 1011 can limit the moving trajectory of the positioning seat 201 during movement, so that the positioning seat 201 will not be skewed or twisted during movement, adjustment and positioning, causing the device to get stuck and fail, and the use is stable.

[0045] In another embodiment, the interlocking lock block 204 is located on both sides of the axial direction of the synchronous rotating block 203 and is provided with a track block b with a "T"-shaped cross-section. The track block is arranged radially along the synchronous rotating block 203, and a radial groove is provided inside the block body of the synchronous rotating block 203. The track block is inserted into the inside of the radial groove, and then the radial groove can limit the movement trajectory of the interlocking lock block 204 through the track block, so that the interlocking lock block 204 can only move radially inside the synchronous rotating block 203, and the interlocking lock block 204 will not be skewed or twisted during movement, causing the device to get stuck and fail, thereby further improving the stability of the device.

[0046] In another embodiment, mounting blocks with regular polygonal cross-sections are provided on both sides of the positioning rod 102, and the mounting blocks are inserted into the interior of the mounting shell 101 and positioned by bolts so that the positioning rod 102 cannot move laterally (i.e., in the direction of the long side) inside the mounting shell 101. This design makes the positioning rod 102 detachable, which is convenient for later inspection, maintenance and replacement. At the same time, the design of the mounting block with a regular polygonal cross-section also makes it impossible for the positioning rod 102 to rotate inside the mounting shell 101 at all times, and can stably realize the regulation function of the positioning component, further improving the flexibility and stability of the device.

[0047] Specific usage and function of this embodiment: In the present invention, the positioning component has two control modes, a loose clamping mode and a positioning mode. During the welding process of the display stand accessories, a suitable adjustment mode can be selected for processing and use according to actual processing requirements. The device is in a loose clamping mode when in a reset state, that is, when the switching rod 304 is not affected by external force, the rotating control rod 202 can realize the movement and loosening operation of the positioning seat 201. At this time, under the action of the separation top spring 2032, the switching control groove 311 positions the use position of the linkage lock block 204 by switching the guide column 2042, so that the control thread segment 2041 of the linkage lock block 204 can stably cooperate with the external thread of the positioning rod 102, thereby realizing The locking and positioning of the positioning seat 201 is used. When the clamping operation is required, the switching rod 304 is rotated. When the switching rod 304 is rotated, the control gear 2021 can drive the synchronous rotating block 203 to rotate through the clamping control gear 2031. When the synchronous rotating block 203 is rotated, it can drive the linkage locking block 204 to rotate synchronously, so that when the linkage locking block 204 is rotated, it can drive the positioning seat 201 to move through the cooperation of the control thread section 2041 and the rod thread of the positioning rod 102, thereby changing the use spacing between the two positioning clamping blocks 4, thereby realizing the positioning operation of the display stand accessories, which is convenient and flexible to use. The locking control groove 3111 is designed to be horizontal, that is, the groove direction of the locking control groove 3111 is in the synchronous rotating block 203, and the positioning assembly is in the reset state, under the action of the separation top spring 2032, the switching guide post 2042 is located inside the locking control groove 3111, so that the switching guide post 2042 cannot move in the radial direction of the synchronous rotating block 203 due to the limitation of the locking control groove 3111 in the reset state, so that the switching guide post 2042 can stably maintain the cooperation between the control thread section 2041 and the outer rod body of the positioning rod 102, which is convenient to adjust and stable in positioning. There will be no accidental loosening operation during use. The switching operation of the two use modes of the device can be realized by switching the switching rod 304. Taking the switching from the reset state (loosening mode) to the positioning mode for use as an example, by pressing the switch The lever 304 can realize the switching operation. When the switching lever 304 is pressed, the switching rack 3041 of the switching lever 304 can drive the driving cylinder 303 to rotate through the driving gear 3032. Under the guiding action of the guide groove 2011, when the driving cylinder 303 rotates, the driving groove 3031 can drive the guide column 302 to move inside the positioning seat 201 through the driving protrusion 3021, so that the guide column 302 can drive the displacement switching disk 301 to move in the direction close to the synchronous rotating block 203 when moving. When the displacement switching disk 301 moves, the switching guide column 2042 can enter the unlocking control groove 3112 from the locking control groove 3111. Since the groove body of the unlocking control groove 3112 is designed to be inclined,Therefore, when the displacement switching disk 301 is moved, the unlocking control slot 3112 can drive the linkage lock block 204 to move in the radial direction of the synchronous rotating block 203 through the switching guide column 2042, thereby releasing the matching relationship between the control thread segment 2041 and the rod thread of the positioning rod 102, that is, after that, the positioning seat 201 is no longer subject to the locking constraint of the positioning rod 102 and can freely change the use position, thereby realizing the function of large span and fast reaching the required use position. When the switching rod 304 is released, the positioning assembly can automatically reset and restore the positioning seat 201 under the action of the separation top spring 2032. The locking is performed to prepare for the subsequent regulation of the device through the loose clamping mode, and the flexible force of the separation top spring 2032 is used to reset the device, so that when the device is restored from the positioning mode to the loose clamping mode (reset state), the control thread segment 2041 can stably re-match with the rod body thread of the positioning rod 102. Even if there is a misalignment between the two, after the control rod 202 is rotated again, the control thread segment 2041 can re-match with the rod body thread of the positioning rod 102 under the action of the separation top spring 2032, and the device will not be unusable due to switching failure.

Claims

1. A display stand processing and welding device, characterized in that: include: An installation component (1), the installation component (1) comprising an installation shell (101) and a positioning rod (102), the positioning rod (102) being fixedly mounted inside the installation shell (101); a positioning component, the positioning component comprising a clamping control mechanism (2) and a switching mechanism (3), the clamping control mechanism (2) comprising a positioning seat (201), a control rod (202), a synchronous rotating block (203) and a linkage locking block (204), the positioning seat (201) being plugged into the installation shell (101) The positioning rod (102) is inserted into the positioning seat (201), and the rod body of the positioning rod (102) passes through the seat body of the positioning seat (201). The control rod (202) is rotatably connected to the inside of the positioning seat (201). The synchronous rotating block (203) is rotatably connected to the inside of the positioning seat (201), and the linkage locking block (204) is radially inserted into the inside of the synchronous rotating block (203); the switching mechanism (3) comprises a displacement switching disk (301), a guide column (302), a driving cylinder (303) and a switching rod (304). The change disk (301) is axially plugged into the outside of the synchronous rotating block (203), and the displacement switching disk (301) is plugged into the inside of the positioning seat (201), the guide column (302) is plugged into the inside of the positioning seat (201), and one end of the guide column (302) is rotatably connected to the inside of the displacement switching disk (301), the drive cylinder (303) is plugged into the inside of the guide column (302), and the drive cylinder (303) is rotatably connected to the inside of the positioning seat (201), and the switching rod (304) Inserted inside the positioning seat (201); a positioning clamp (4), the top of the positioning seat (201) and the top of the mounting housing (101) are both fixedly mounted with positioning clamps (4), and the two positioning clamps (4) are located on the same straight line, the connecting line between the two positioning clamps (4) is parallel to the rod body of the positioning rod (102), and the rod body of the positioning rod (102) passes through the interior of the synchronous rotating block (203), the displacement switching disk (301), the guide column (302) and the driving cylinder (303); A switching control slot (311) is provided on the side of the displacement switching disk (301), and a switching guide column (2042) is provided on the side of the linkage locking block (204), and the switching guide column (2042) is inserted into the inside of the switching control slot (311); The switching control groove (311) has an "L"-shaped groove body, and the switching control groove (311) consists of a locking control groove (3111) and an unlocking control groove (3112), the locking control groove (3111) has a horizontal groove body, and the unlocking control groove (3112) has an inclined groove body, and one end of the locking control groove (3111) and the unlocking control groove (3112) are connected; The column cross section of the guide column (302) is a regular polygon, and a guide groove (2011) is provided inside the positioning seat (201), and the column of the guide column (302) is inserted into the inside of the guide groove (2011); A driving groove (3031) is provided on the outside of one side of the driving cylinder (303), and the groove body of the driving groove (3031) is designed in a spiral shape; a driving protrusion (3021) is provided inside the guide column (302), and the driving protrusion (3021) is inserted into the inside of the driving groove (3031); A driving gear (3032) is provided on the other side of the driving cylinder (303), and a switching rack (3041) is provided on the side of the switching rod (304), and the switching rack (3041) and the driving gear (3032) are engaged with each other for transmission.

2. A display stand processing and welding device as claimed in claim 1, characterized in that: A control gear (2021) is provided on the outside of the rod body of the control rod (202), and a clamping control gear (2031) is provided on the outside of the synchronous rotating block (203), and the control gear (2021) and the clamping control gear (2031) are engaged with each other for transmission.

3. A display stand processing and welding device as claimed in claim 1, characterized in that: The bottom of the linkage lock block (204) is provided with a control thread segment (2041), and the outside of the rod body of the positioning rod (102) is provided with a thread, and the thread on the outside of the rod body of the positioning rod (102) cooperates with the thread of the control thread segment (2041).

4. A display stand processing and welding device as claimed in claim 1, characterized in that: A separation top spring (2032) is provided on the side of the synchronous rotating block (203), and two ends of the separation top spring (2032) respectively abut against the side of the synchronous rotating block (203) and the side of the displacement switching disk (301). Under the action of the separation top spring (2032), the positioning assembly switches the guide column (2042) to be located inside the locking control groove (3111) when in a reset state.

5. A display stand processing and welding device as claimed in claim 1, characterized in that: The cross section of the seat body of the positioning seat (201) is in a "T" shape, and a track groove (1011) is provided inside the mounting shell (101), and the positioning seat (201) is plugged into the inside of the track groove (1011).

Images