Positioning clamp for welding membrane type air spring cover plate

Abstract

The invention discloses a positioning fixture for welding a membrane type air spring cover plate, which relates to the technical field of spring cover plate positioning fixtures, and comprises a processing table and a quick clamp arranged above the processing table and used for compressing and fixing the spring cover plate, and further comprises a sliding supply mechanism used for quickly adjusting the direction of the quick clamp, the sliding supply mechanism comprises a circular rail fixed to the top face of the machining table in a circular ring shape and a movable seat arranged on the circular rail in a sliding mode, the quick clamp is detachably installed on the top of the movable seat through a screw, an annular rail limiting groove is formed in the outer wall of the circular rail in a surrounding mode, and an advancing and retreating groove correspondingly communicating with the annular rail limiting groove is transversely formed in the inner wall of the movable seat. A limiting component is arranged in the advancing and retreating groove; through the arrangement of the sliding supply mechanism, the movable seat can move around the circular rail only by simply pushing and pulling the movable seat, so that the use direction of the quick clamp can be conveniently and quickly adjusted, the quick clamp can tightly press and fix the spring cover plate from different positions according to the use condition, and the practicability of the device is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of spring cover plate positioning fixtures, and in particular to a positioning fixture for welding a membrane type air spring cover plate. Background Art

[0002] Air springs are mainly spring components prepared by compressing air in a sealed elastic space. They have a relatively simple structure and are mainly composed of a sealed air elastic component and a cover component. The covers at both ends of some air springs are made of metal, and welding technology is required during installation.

[0003] In order to ensure the stability of the spring cover during welding, the operating table of the conventional welding device is generally equipped with a push-pull type quick clamp, which is used to press the spring cover to prevent the spring cover from moving and deviating during welding, thus affecting the welding effect.

[0004] However, the manual toggle clamp is generally assembled for welding on the operating table of the welding device, and its use position is fixed, so that the manual toggle clamp can only press the spring cover in a single direction. It is very inconvenient to adjust the fixed position of the spring cover according to the use requirements, which affects the practicability of the device to a certain extent. Summary of the invention

[0005] In order to solve the above technical problems, a positioning clamp for welding a membrane air spring cover is provided, which solves the problem that in the prior art, the quick clamp is generally welded and assembled on the operating table of the welding device, and its use position is fixed, so that the quick clamp can only press the spring cover in a single direction, which is very inconvenient to adjust the fixed position of the spring cover according to usage requirements, affecting the practicability of the device to a certain extent.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a positioning fixture for welding a membrane air spring cover plate, comprising a processing table and a quick clamp arranged above the processing table for pressing and fixing the spring cover plate, and also comprising a sliding mechanism for quickly adjusting the orientation of the quick clamp;

[0007] The sliding mechanism comprises a circular rail fixed on the top surface of the processing table in an annular shape and a movable seat slidably arranged on the circular rail, the quick clamp is detachably mounted on the top of the movable seat by screws, an annular rail limiting groove is arranged around the outer wall of the circular rail, an advance and retreat groove corresponding to and communicating with the annular rail limiting groove is transversely arranged in the inner wall of the movable seat, and a limiting component is built into the advance and retreat groove;

[0008] The limiting component includes a track limiting block slidably arranged on one side of the advance and retreat groove, a transmission stud is transversely arranged on the other side of the advance and retreat groove, a transmission threaded sleeve is arranged between the transmission stud and the track limiting block, and the transmission threaded sleeve is threadedly sleeved on the rod of the transmission stud;

[0009] An air injection component is arranged on the outer circumference of the circular rail, an air receiving component matched with the air injection component is arranged on the outer wall of the movable seat, and an air outlet is arranged on the track limiting block.

[0010] Preferably, the air outlet is composed of an air supply port and an air inlet, the air inlet and the air supply port are connected to each other, the air supply port is opened at one end of the track limiting block, and the air inlet is opened on the side of the track limiting block away from the annular track limiting groove, one end of the transmission threaded sleeve is inserted into the air inlet and fixed with a connecting piece, and the connecting piece is vertically fixed on the inner side of the air inlet.

[0011] Preferably, the air connecting component includes an outer spiral tube fixedly arranged on the side wall of the movable seat, an inner spiral tube threadedly connected to the outer wall of the outer spiral tube, and a connecting tube fixed to one end of the inner spiral tube away from the movable seat, and the outer spiral tube is connected to the interior of the advance and retreat groove.

[0012] Preferably, the gas injection component includes an annular gas seat fixed in a circular ring shape on the top surface of the processing table, the inner side of the annular gas seat is an opening, and an annular gas baffle plate is slidably arranged in the opening of the annular gas seat, an air supply pipe is fixedly passed through the annular gas baffle plate, and an air connecting head is fixedly passed through the outer side of the annular gas seat, and the air connecting head is connected to the external air pipe.

[0013] Preferably, a circular closed ring is fixed on the inner side of the gas delivery pipe, a closed plug is fitted on one side of the closed ring, and two limit slide bars fixedly connected to the closed plugs are symmetrically penetrated on the other side of the closed ring, and the limit slide bar is T-shaped, and a return spring is sleeved on the rod body of the transverse section of the limit slide bar, and the two ends of the return spring are respectively fixedly connected to the closed ring and the vertical section of the limit slide bar.

[0014] Preferably, a fixing plate is vertically fixed to the inner side of the connecting pipe, and a pressure column corresponding to the center of the closed loop is vertically fixed to one side of the fixing plate.

[0015] Preferably, one end of the transmission stud penetrates into the inner side of the outer screw tube and is provided with a keyway, and a spline rod fixedly connected to the fixing plate is slidably arranged in the keyway.

[0016] Preferably, a limiting sleeve is rotatably sleeved on the rod body of the transmission stud, and the limiting sleeve is fixedly connected to the inner wall of the outer screw tube through a bracket.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) Through the setting of the sliding mechanism, the movable seat can be moved around the circular rail by simply pushing and pulling the movable seat, thereby conveniently and quickly adjusting the use orientation of the quick clamp, so that the quick clamp can be used to press and fix the spring cover from different positions according to the use situation, thereby enhancing the practicality of the device.

[0019] (2) By setting the limiting component, the transmission stud is controlled to rotate, and the transmission threaded sleeve can slide along the transmission stud rod under the threaded structure, thereby pushing the track limiting block to slide into the inner side of the annular track limiting groove. The track limiting block cooperates with the annular track limiting groove to effectively prevent the movable seat from falling off when the movable seat slides on the circular rail, thereby ensuring the stability of its movement.

[0020] (3) By setting up the gas injection component, the gas connection component and the gas outlet, the gas connection component on the movable seat is used to connect the gas injection component, so that the gas output by the gas injection component can continuously flow into the entry and exit groove, so that the gas flows through the inner side of the gas inlet and the gas output port and is finally output to the inner side of the annular track limiting groove, so that when the movable seat is manually slid, the gas continuously output from the gas output port can effectively purge the welding slag inside the annular track limiting groove, thereby achieving a good welding slag cleaning effect.

[0021] (4) By setting the keyway and the spline rod, when the connecting pipe is rotated and slid toward the outer wall of the gas transmission pipe by turning the screw tube inside the knob, the connecting pipe can be synchronously driven by the spline rod to drive the transmission stud, providing a rotational force for the transmission stud, so that the transmission threaded sleeve slides along the transmission stud rod under the threaded structure and pushes the track limiting block to insert into the inner side of the annular track limiting groove by itself, thereby achieving the anti-slip effect of the movable seat on the circular rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at B in the middle;

[0026] Figure 5 It is a schematic diagram of the closed ring and closed plug structure of the present invention.

[0027] The numbers in the figure are:

[0028] 1. Processing table; 2. Movable seat; 3. Quick clamp; 4. Circular rail; 5. Annular rail limit groove; 6. Advance and retreat groove; 7. Rail limit block; 8. Transmission stud; 9. Transmission threaded sleeve; 10. Air supply port; 11. Air inlet; 12. Connecting piece; 13. External screw tube; 14. Internal screw tube; 15. Connecting pipe; 16. Annular air seat; 17. Annular air baffle plate; 18. Air supply pipe; 19. Fixed piece; 20. Pressure column; 21. Closing ring; 22. Closing plug; 23. Limiting slide rod; 24. Reset spring; 25. Spline rod; 26. Limiting sleeve; 27. Air connection head. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] Reference Figure 1-5 As shown, a positioning fixture for welding a membrane air spring cover plate comprises a processing table 1 and a quick clamp 3 arranged above the processing table 1 for pressing and fixing the spring cover plate;

[0031] After searching, the manual clamp 3 is a conventional tool used for fixing workpieces in the prior art. The specific structure and operation principle thereof will not be introduced in detail in this case. Its general effect of use on the processing table 1 is to place the spring cover plate to be processed on the processing table 1, and then pull the handle of the manual clamp 3, and the pressure head of the manual clamp 3 will quickly press the spring cover plate downward, thereby achieving the fixing effect of the spring cover plate.

[0032] However, the quick clamp 3 in the prior art is generally welded and assembled on the processing table 1, and its use position is fixed, so that the quick clamp 3 can only press the spring cover plate in a single direction, which is very inconvenient to adjust the fixed position of the spring cover plate according to the use requirements, which affects the practicality of the device to a certain extent;

[0033] For this purpose, refer to Figure 2-5 As shown, it is worth noting that it also includes a sliding mechanism for quickly adjusting the 3-position quick clamp;

[0034] The sliding mechanism includes a circular rail 4 fixed on the top surface of the processing table 1 in a circular ring shape and a movable seat 2 slidably arranged on the circular rail 4, and the quick clamp 3 is detachably mounted on the top of the movable seat 2 by screws;

[0035] By setting the sliding mechanism, the movable seat 2 can be moved around the circular rail 4 by simply pushing and pulling the movable seat 2, so that the use orientation of the quick clamp 3 can be conveniently and quickly adjusted, so that the quick clamp 3 can be pressed and fixed from different positions according to the use situation, thereby enhancing the practicality of the device.

[0036] Further, refer to Figure 4 As shown, it is worth noting that an annular track limiting groove 5 is formed around the outer wall of the circular rail 4, and an advance and retreat groove 6 corresponding to and communicating with the annular track limiting groove 5 is transversely arranged in the inner wall of the movable seat 2, and a limiting component is built into the advance and retreat groove 6;

[0037] The limiting component includes a track limiting block 7 slidably arranged on one side of the advance and retreat groove 6, a transmission stud 8 is transversely arranged on the other side of the advance and retreat groove 6, a transmission threaded sleeve 9 is arranged between the transmission stud 8 and the track limiting block 7, and the transmission threaded sleeve 9 is threadedly sleeved on the rod of the transmission stud 8;

[0038] By setting the limiting component, the transmission stud 8 is controlled to rotate, and the transmission threaded sleeve 9 can slide along the rod of the transmission stud 8 under the threaded structure, thereby pushing the track limiting block 7 to slide into the inner side of the annular track limiting groove 5. In this way, the track limiting block 7 cooperates with the annular track limiting groove 5 to effectively prevent the movable seat 2 from falling off when the movable seat 2 slides on the circular rail 4, thereby ensuring the stability of its movement;

[0039] On the contrary, the transmission stud 8 is rotated in the opposite direction, so that the transmission threaded sleeve 9 slides in the opposite direction of the transmission stud 8 rod under the threaded structure, and the transmission threaded sleeve 9 pulls the track limiting block 7 in the opposite direction to disengage from the inner side of the annular track limiting groove 5, thereby facilitating the removal of the movable seat 2 and the quick clamp 3 from the circular rail 4 as a whole.

[0040] In the above embodiment, although the sliding mechanism is utilized to enable the quick clamp 3 to clamp and fix the spring cover plate from different positions according to the usage conditions, a large amount of splashing welding slag will be generated during the actual welding process of the spring cover plate. Once the welding slag enters the inner side of the narrow annular track limiting groove 5, it will cause great trouble for manual cleaning. In addition, a large amount of welding slag will accumulate on the inner side of the annular track limiting groove 5, which will still cause a large friction obstacle when the track limiting block 7 slides on the inner side of the annular track limiting groove 5, affecting the flexibility of the movable seat 2 during movement.

[0041] To solve the above problems, refer to Figure 4 As shown, it is worth noting that the outer periphery of the circular rail 4 is provided with a gas injection component, the outer wall of the movable seat 2 is provided with a gas receiving component that matches the gas injection component, and the track limiting block 7 is provided with a gas outlet;

[0042] The gas outlet is composed of a gas delivery port 10 and a gas inlet 11, the gas inlet 11 and the gas delivery port 10 are connected to each other, the gas delivery port 10 is opened at one end of the track limiting block 7, the gas inlet 11 is opened on the side of the track limiting block 7 away from the annular track limiting groove 5, one end of the transmission threaded sleeve 9 penetrates into the gas inlet 11 and is fixed with a connecting piece 12, and the connecting piece 12 is vertically fixed to the inner side of the gas inlet 11;

[0043] By setting the gas injection component, the gas connection component and the gas outlet, the gas connection component on the movable seat 2 is used to connect the gas injection component, so that the gas output by the gas injection component can continuously pass into the entry and retreat groove 6, so that the gas flows through the inner side of the gas inlet 11 and the gas delivery port 10 and is finally output to the inner side of the annular track limiting groove 5, so that when the movable seat 2 is manually slid, the gas continuously output by the gas delivery port 10 can effectively purge the welding slag inside the annular track limiting groove 5, thereby achieving a good welding slag cleaning effect;

[0044] And through the setting of the connecting piece 12, when the transmission stud 8 is rotated to make the transmission threaded sleeve 9 slide along the rod of the transmission stud 8 by the threaded structure, the transmission threaded sleeve 9 can play a good pushing and pulling role on the track limiting block 7 through the connecting piece 12, thereby ensuring the mobility of the track limiting block 7.

[0045] Further, refer to Figure 3 and Figure 4 As shown, it is worth noting that the air connection component includes an outer spiral tube 13 fixedly arranged on the side wall of the movable seat 2, an inner spiral tube 14 threadedly connected to the outer wall of the outer spiral tube 13, and a connecting tube 15 fixed to the end of the inner spiral tube 14 away from the movable seat 2, and the outer spiral tube 13 is connected to the inside of the advance and retreat groove 6;

[0046] The gas injection component includes an annular gas seat 16 fixed on the top surface of the processing table 1 in an annular shape, the inner side of the annular gas seat 16 is an opening, and an annular gas baffle plate 17 is slidably arranged in the opening of the annular gas seat 16, and an air delivery pipe 18 is fixedly penetrated through the annular gas baffle plate 17, and an air connection head 27 is fixedly penetrated on the outer side of the annular gas seat 16, and the air connection head 27 is externally connected to the air pipe;

[0047] When in use, the knob inner spiral tube 14 is turned, and the inner spiral tube 14 can push the connecting tube 15 to slide to the outer wall of the gas delivery pipe 18 under the threaded structure, so that when the gas is injected into the gas connection head 27 and the inner side of the annular gas seat 16 by the gas pipe, the gas can be simultaneously passed from the gas delivery pipe 18 into the connecting tube 15 and the inner side of the outer spiral tube 13, and finally enter the advance and retreat groove 6;

[0048] In addition, the sliding property of the annular air baffle plate 17 in the opening of the annular air seat 16 can be used to cooperate with the sliding adjustment of the movable seat 2 on the circular rail 4 to reduce obstacles and ensure the flexibility of the movable seat 2.

[0049] Further, refer to Figure 3-5 As shown, it is worth noting that a circular closed ring 21 is fixed to the inner side of the gas delivery pipe 18, a closed plug 22 is attached to one side of the closed ring 21, and two limit slide bars 23 fixedly connected to the closed plug 22 are symmetrically penetrated on the other side of the closed ring 21, and the limit slide bar 23 is T-shaped, and a return spring 24 is sleeved on the rod body of the horizontal section of the limit slide bar 23, and the two ends of the return spring 24 are respectively fixedly connected to the closed ring 21 and the vertical section of the limit slide bar 23;

[0050] A fixing plate 19 is vertically fixed to the inner side of the connecting pipe 15, and a pressure column 20 corresponding to the center of the closed ring 21 is vertically fixed to one side of the fixing plate 19;

[0051] As shown above, when the knob inner spiral tube 14 is turned to make the connection tube 15 slide onto the outer wall of the gas delivery tube 18, the pressure column 20 built into the connection tube 15 can simultaneously penetrate into the inner side of the gas delivery tube 18 and punch the closing plug 22, so that the closing plug 22 is forced away from the closing ring 21, thereby expanding the distance between the closing ring 21 and the closing plug 22, releasing the seal on the inner side of the gas delivery tube 18, so that the gas inside the annular gas seat 16 can smoothly pass through the closing ring 21 into the connection tube 15, the outer spiral tube 13 and the advance and retreat groove 6;

[0052] During this period, when the closing plug 22 slides under pressure, the closing plug 22 can simultaneously pull the limiting slide bar 23 to move to one side and compress the return spring 24 to deform. In this way, the elastic force of the return spring 24 is utilized to wait for the reverse knob inner screw tube 14 to make the connecting tube 15 withdraw from the outer wall of the gas pipe 18. When the pressure column 20 reduces the stamping pressure on the closing plug 22, the limiting slide bar 23 can act on the closing plug 22 to reset and fit the closing ring 21 under the elastic force of the return spring 24, so as to reseal the inner side of the gas pipe 18 to prevent gas leakage.

[0053] Further, refer to Figure 4 As shown, it is worth noting that one end of the transmission stud 8 penetrates into the inner side of the outer screw tube 13 and is provided with a keyway, in which a spline rod 25 fixedly connected to the fixing plate 19 is slidably provided;

[0054] By setting the keyway and the spline rod 25, when the connecting tube 15 is rotated to slide on the outer wall of the gas delivery pipe 18 by turning the inner screw tube 14 of the knob, the connecting tube 15 can be synchronously driven by the spline rod 25 to drive the transmission stud 8, providing a rotational force for the transmission stud 8, so that the transmission threaded sleeve 9 slides along the rod of the transmission stud 8 under the threaded structure and pushes the track limiting block 7 to insert into the inner side of the annular track limiting groove 5 by itself, so as to achieve the anti-slip effect of the movable seat 2 on the circular rail 4;

[0055] When the connecting pipe 15 moves to the outer wall of the gas delivery pipe 18 in a rotational manner, the spline rod 25 can synchronously slide in the keyway, thereby reducing the movement resistance of the connecting pipe 15 without affecting the rotation of the transmission stud 8.

[0056] Further, refer to Figure 4 As shown, it is worth noting that the rod of the transmission stud 8 is rotatably sleeved with a limit sleeve 26, and the limit sleeve 26 is fixedly connected to the inner wall of the outer screw tube 13 through a bracket;

[0057] By providing the limiting sleeve 26 , the driving stud 8 can be effectively supported on the inner side of the outer screw tube 13 to ensure the stability of the driving stud 8 when it rotates horizontally.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A positioning fixture for welding a membrane air spring cover plate, comprising a processing table (1) and a quick clamp (3) arranged above the processing table (1) for pressing and fixing the spring cover plate, characterized in that: It also includes a sliding mechanism for quickly adjusting the position of the quick clamp (3); The sliding mechanism comprises a circular rail (4) fixed on the top surface of the processing table (1) in an annular shape and a movable seat (2) slidably arranged on the circular rail (4); the quick clamp (3) is detachably mounted on the top of the movable seat (2) by means of screws; an annular rail limiting groove (5) is arranged around the outer wall of the circular rail (4); an advance and retreat groove (6) corresponding to and communicating with the annular rail limiting groove (5) is transversely arranged in the inner wall of the movable seat (2); and a limiting component is built into the advance and retreat groove (6); The limiting component comprises a track limiting block (7) slidably arranged on one side of the advance and retreat groove (6); a transmission stud (8) is transversely arranged on the other side of the advance and retreat groove (6); a transmission threaded sleeve (9) is arranged between the transmission stud (8) and the track limiting block (7); and the transmission threaded sleeve (9) is threadedly sleeved on the rod of the transmission stud (8); An air injection component is arranged on the outer periphery of the circular rail (4), an air receiving component matching the air injection component is arranged on the outer wall of the movable seat (2), and an air outlet is arranged on the track limiting block (7).

2. A positioning fixture for welding a membrane type air spring cover plate according to claim 1, characterized in that: The gas outlet is composed of a gas delivery port (10) and a gas inlet (11). The gas inlet (11) and the gas delivery port (10) are communicated with each other. The gas delivery port (10) is opened at one end of the track limiting block (7). The gas inlet (11) is opened on the side of the track limiting block (7) away from the annular track limiting groove (5). One end of the transmission threaded sleeve (9) penetrates into the gas inlet (11) and is fixed with a connecting piece (12). The connecting piece (12) is vertically fixed to the inner side of the gas inlet (11).

3. A positioning fixture for welding a membrane type air spring cover plate according to claim 1, characterized in that: The air receiving component comprises an outer spiral tube (13) fixedly arranged on the side wall of the movable seat (2), an inner spiral tube (14) threadedly connected to the outer wall of the outer spiral tube (13), and a connecting tube (15) fixed to one end of the inner spiral tube (14) away from the movable seat (2), and the outer spiral tube (13) is connected to the inside of the advance and retreat groove (6).

4. A positioning fixture for welding a membrane type air spring cover plate according to claim 1, characterized in that: The gas injection component comprises an annular gas seat (16) fixed on the top surface of the processing table (1) in a circular ring shape, the inner side of the annular gas seat (16) is an opening, and an annular gas baffle plate (17) is slidably arranged in the opening of the annular gas seat (16), a gas supply pipe (18) is fixedly passed through the annular gas baffle plate (17), and an air connection head (27) is fixedly passed through the outer side of the annular gas seat (16), and the air connection head (27) is connected to the external gas pipe.

5. A positioning fixture for welding a membrane type air spring cover plate according to claim 4, characterized in that: A circular closed ring (21) is fixed on the inner side of the gas delivery pipe (18), a closed plug (22) is attached to one side of the closed ring (21), and two limit slide bars (23) fixedly connected to the closed plugs (22) are symmetrically passed through the other side of the closed ring (21), the limit slide bars (23) are T-shaped, and a return spring (24) is sleeved on the rod body of the horizontal section of the limit slide bar (23), and the two ends of the return spring (24) are respectively fixedly connected to the closed ring (21) and the vertical section of the limit slide bar (23).

6. A positioning fixture for welding a membrane type air spring cover plate according to claim 3, characterized in that: A fixing plate (19) is vertically fixed on the inner side of the connecting pipe (15), and a pressure column (20) corresponding to the center of the closed ring (21) is vertically fixed on one side of the fixing plate (19).

7. A positioning fixture for welding a membrane type air spring cover plate according to claim 6, characterized in that: One end of the transmission stud (8) penetrates into the inner side of the outer screw tube (13) and is provided with a keyway, in which a spline rod (25) fixedly connected to the fixing plate (19) is slidably arranged.

8. The positioning fixture for welding a membrane type air spring cover plate according to claim 3, characterized in that: A limiting sleeve (26) is rotatably sleeved on the rod of the transmission stud (8), and the limiting sleeve (26) is fixedly connected to the inner wall of the outer screw tube (13) through a bracket.

Images